9 Commits

Author SHA1 Message Date
Ben Duncan ea3e01bb20 fix: reboot a guest by asking it, not by pulling its reset line (#1028)
* fix: reboot a guest by asking it, not by pulling its reset line

RebootInstances was QMP system_reset alone. The guest kernel is never told,
so it does not sync, does not unmount and loses every dirty page - which is
how a reboot issued seconds after a write loses that write, and how a guest
rebooted during cloud-init can fail to come back at all.

Guests now launch with -action shutdown=pause, so a clean guest poweroff
leaves QEMU paused rather than gone. Reboot presses the power button, waits
for the guest to reach that state, then resets and resumes the same process:
no volume, tap or state churn, and no window where the guest is missing. A
guest that will not go quietly is hard-reset, which is what AWS documents.

The button is pressed again every 10s while the guest ignores it. One signal
is not a shutdown request on a guest whose acpid has not started, which is
the same boot race that produced the failure.

Two consequences handled here: a guest that powers itself off now leaves
QEMU paused, so the heartbeat quits it; and a guest launched before the flag
exits on powerdown rather than pausing, so it is reset without being asked.

* fix: answer a reboot when it is accepted, not when the guest is back

Asking a guest to shut down takes as long as the guest takes. RebootInstances
gives the daemon five seconds to reply, so a reboot that waited for the guest
reported a reboot that had in fact succeeded as InvalidInstanceID.NotFound.

Manager.Reboot now admits the reboot — the instance exists and is running — and
runs the powerdown and reset in the background, which is the contract EC2
documents. The two admission failures are still reported; nothing after them
can be, so a reset that fails is logged and left to the heartbeat.

The gateway also stops calling a NATS timeout NotFound. Only the absence of a
subscriber says anything about where the instance is, which is how the sibling
start and terminate paths already read it.

* test: prove the churn reboot by its boot ID, not by how fast it happened

The subtest waited ten seconds and then read /proc/uptime. A reboot is
asynchronous, so the guest answering at that point may be the one that has
not shut down yet, and its uptime is whatever it was before — which the test
reads as "reboot may not have occurred".

Waiting for the boot ID to change is positive proof the guest rebooted and
does not depend on how long the guest takes to go down. The uptime assertion
stays, now measured against a boot that is known to be new.

* test: prove the graceful reboot against real guests and a real engine

Two tests the reboot design asked for and the unit tests cannot give.

Cell 18 launches two guests that differ only in how they answer the power
button. One installs a shutdown hook writing an fsynced line a second, so the
file that survives measures how much of its shutdown it was allowed to run —
a guest reset instead of asked leaves none of it. The other ignores the power
key entirely and must be reset once its budget expires, with the daemon saying
so. Each variant asserts the evidence only it can produce, and the slow one
asserts the absence of the line the wedged one requires.

Cell 27 loads a PostgreSQL instance past its shared buffers with pgbench and
reboots it dirty. The probe is an UNLOGGED table: PostgreSQL writes no WAL for
one, so a clean shutdown checkpoints it and crash recovery truncates it
unconditionally. Rows committed normally survive a hard reset too, so the
obvious assertion would pass against the bug.

The rds suite and cell 27 both gain budget for the load phase.

* fix: stop the process-group test misreading a reaped child as alive

The test polled until the child was gone, then checked once more. A task
being reaped shows state X for an instant, which processRunning counted as
running, so that second look failed about 1 run in 50 under -race.

* fix: wait for the recovery retry loop before removing a test's data dir

restoreInstances starts the retry loop untracked, and it rewrites the local
state file when it ends. A write landing during t.TempDir cleanup failed
TestRestoreInstances_* with RemoveAll: directory not empty.
2026-09-14 15:39:27 -05:00
Ben Duncan 42d87d7a5a feat: EBS export tunables, plus blob-read fault isolation for ebsmetadata (#799)
* feat(ebs): make nbdkit thread count and per-volume read cache configurable

Both numbers that set a volume's export concurrency and memory were
hard-coded: nbdkit ran on its own default of 16 threads per connection
because no -t was ever passed, and the read cache was a 128 MiB literal in
the mount path. Neither could be changed without a recompile, and neither
was visible in the logs or the process argv.

Add default_threads and cache_size_mb to [nodes.<node>.ebs]. Defaults are
unchanged, so a config that does not set them behaves exactly as before.

CacheSizeMB is a pointer so an explicit 0 (cache disabled) stays
distinguishable from an unset key, matching how ViperblockConfig treats its
own toggles. -efi volumes stay uncached regardless.

Validation is a range check only. Both are operator tunables applied per
nbdkit process, and there is one of those per volume, so the host cost is
the value times the volume count -- left for the operator to weigh rather
than second-guessed here.

* feat(security): arm the firewall by install path and sync the clock at firstboot

The host firewall armed itself from a code default, so a curl-to-bash install
onto an existing Debian or Ubuntu machine applied a default-deny INPUT policy
seconds after bootstrap. Anything the operator was already running that is not
on the allow list stopped accepting connections, with nothing logged and no
config key to set beforehand — no template writes firewall_enabled, so every
install fell through to the default.

Arming is now the install path's decision. setup.sh takes --firewall=on|off and
records it in /etc/spinifex/firewall/mode, defaulting on under ISO_BUILD and off
everywhere else: the ISO is an appliance on hardware we define, a package install
is a guest on a machine that was already doing something.

firewall_enabled becomes a three-state *bool so "unset" and "explicitly false"
stay distinguishable. Flipping the default to false instead would have torn down
a working policy on every existing node, because false is an instruction to
disable rather than an absence. Resolution is config, then mode file, then on, so
a node installed before any of this keeps what it has.

The ISO had the opposite problem. setup.sh is the only place that enables
spinifex-firewall.service and it returns before that line under ISO_BUILD, with
no systemd in the chroot to talk to. Nothing else enabled it, so after a reboot
the ruleset — runtime state — was gone, and ReconcileFirewall short-circuited on
an unchanged peer file and never put it back. An ISO node was firewalled until
its first reboot and open permanently after. firstboot now enables the unit, and
the reconcile checks the table is loaded rather than treating an unchanged peer
set as proof the policy is applied.

Two policy changes: 443 is held for the nginx TLS edge so that rollout needs no
per-node firewall change, and the SSH port is read from sshd_config and its
Include drop-ins instead of being hardcoded to 22 — a host on Port 2222 was
allowed exactly one port that was not the one it uses, and ct state established
kept the operator's session alive until they disconnected. 53 stays open on every
node, now with a comment saying so: northstar serves public authoritative DNS.

Clock: firstboot steps and waits for sync before spx admin init mints
credentials, since a certificate issued against a wrong RTC carries a NotBefore
that outlives the correction. Bounded to 60s and non-fatal so an air-gapped
install still completes, and once is enough because rtcsync writes the corrected
time back. A chrony drop-in replaces Debian's makestep 1 3, which stops stepping
after three updates and then slews at roughly 7 seconds a day — a node that
burned those before the network came up never visibly converged.

* fix(security): let a node join a cluster whose firewall is already armed

Expanding a single-node ISO install into a cluster could not succeed. Two
independent blockers, both from the same root: the peer set is derived from
converged cluster state, but the ports needed to reach convergence are gated
on that same set.

The formation port is peer-scoped, and a node dialling in to join is not a
peer yet, so the handshake was dropped rather than refused and the joiner
retried in silence until it timed out. It cannot simply move to the public
rule: outside formation the same port carries the daemon cluster manager,
whose /health and /local/* routes report node topology, service inventory and
running instances unauthenticated. So it is opened for the formation window
only, by spx admin init, and closed again on every exit path.

The reconcile then deadlocked. Holding out for the full chassis list is right
on a node with no policy loaded, but on one armed for a smaller cluster the
ports a joining node needs in order to register its chassis are exactly the
ones the stale set blocks, so the list can never complete. Widen the peer set
on the tunnel set already loaded, and report the partial state so the caller
retries sooner than the steady-state interval. A converged cluster whose
Southbound DB is briefly unreadable is still left untouched.

* docs(install): explain the firewall around cluster formation

An ISO-installed server is a cluster of one, and its firewall admits internal
cluster traffic only from members it recognises. Forming a cluster out of such
servers therefore needs the firewall off first: step 3 of the multi-node guide
has each server dial node 1's OVN database on the raft ports, and those are
peer-scoped like everything else on the cluster plane. Neither guide said so,
and the failure is a silent drop that looks like a network fault.

Both guides now walk the off / form / on sequence, and the multi-node guide
gains a reference section covering which ports are public, how arming differs
between the ISO and the binary installer, and how to verify membership landed.

Re-enable the boot-time unit whenever the daemon arms the policy. Disabling
the firewall to form a cluster also disables that unit, so re-arming used to
look complete while leaving the node bare after its next reboot.

* fix: make the ISO-to-cluster conversion path work end to end

Forming a cluster from four ISO-imaged servers surfaced a run of bugs that
share a starting state CI never exercises: the ISO delivers an initialized,
armed, running node, while the conversion path was written against the binary
installer's unconfigured one.

- install-node.sh never disarmed the host firewall, so nodes 2 and 3 could not
  dial the first node on the OVN raft ports and formation could not proceed. It
  now owns the whole lifecycle: disarm, form, re-arm, then verify the loaded
  policy against the expected peer set.
- spx admin init left the admin access key and secret empty on the preserve
  path. The pair cannot be read back, and the IAM store is rebuilt by formation,
  so the empty strings reached every joiner's bootstrap.json and crash-looped
  awsgw. It is reissued instead, and IAM seeding now skips an empty admin block
  rather than taking the gateway down on every restart.
- node-reset.sh left /etc/default/ovn-central behind. Raft membership lives in
  that file, not in the databases the reset deletes, so ovn-central recreated
  the database as a cluster member dialling a peer that had itself been wiped.
- node-reset.sh also destroyed the installed firewall policy, which nothing
  regenerates. set-peers then failed on every attempt and the node stayed open
  permanently and silently. The arming mode is read before the wipe and the
  stage regenerated after it.
- spinifex-firewall-apply rejected every verb when the policy file was missing,
  including disable. Turning the firewall off is the recovery path, so that left
  a node that could be neither armed nor disarmed.
- viperblock exited 0 on a fatal startup error, so Restart=on-failure never
  fired. During formation its JetStream bucket has no leader yet, so the EBS
  provider died for good and every volume request failed with no responders.
  predastore and qemunbd had the same bug.
- spx admin images import created image directories at 0700, so the first sudo
  import locked group members out of a tree deliberately made group-writable.

Three of these hid behind checks that cannot succeed: ovn-sbctl show against a
clustered database, and the OVN northbound and southbound waits in setup-ovn.sh.
All three failed to stderr and let the run continue, so a check that could never
pass was indistinguishable from one that was merely slow.

The USB install guide claimed the ISO leaves Spinifex unconfigured and told the
operator to run spx admin init. firstboot has always done that itself, so the
guide now describes what the ISO actually produces and how to start using it.

* fix: let spread placement launch across every node

A spread placement group reserved four distinct nodes correctly and then failed
the launch with ServerInternal, having started only two or three of them. The
scheduler was never at fault; two faults downstream stopped the instances
following the reservation.

vpcd subscribes to vpc.add-nat with QueueSubscribe, which delivers one message
at a time, and the handler holds its reply across the OVN flows barrier. The
45s caller deadline was sized against a single 30s barrier, which is right for
one instance and wrong for the N a spread launch issues at once — the third
request waits behind two full barriers and times out. That one subscription now
overlaps its handlers under a bounded semaphore. Each barrier still syncs after
its own write, so the guarantee is unchanged while N barriers collapse into
roughly one.

With the requests overlapping, every barrier still ran to its alarm.
install-node.sh computed OVN_REMOTE after building the database nodes and gave
it only to compute nodes, so the database nodes were configured without
--ovn-remote. setup-ovn.sh writes ovn-northd's NB/SB connections from that list
and skips it on the localhost default, and it already documents what follows: a
northd dialling only its local member stops advancing nb_cfg once raft
leadership moves, wedging ovn-nbctl --wait=hv. The list is knowable before any
node is touched, so it is computed first and passed to the database nodes too.

Nothing reported an OVN fault while this was happening. Every chassis was
registered, ovn-controller and IPsec were up, and the raft cluster was healthy.
The only signal was the barrier logging that it had overrun and was continuing
without confirmation — which reads like slowness and was a permanent wedge.

* feat: sweep block sizes in the disk benchmark and add an iperf3 network benchmark

* fix: use iperf 2 with CSV output and report why a remote start failed

* fix: stop pkill matching its own shell and verify the iperf server is listening

* ci: run the predastore throughput benchmark at the end of the nightly

* ci: boot the ISO in the nightly, single-node and three-node

* ci: use the existing CI node password secret in the ISO cells

* ci: report free space before the benchmark instead of failing inside warp

* ci: keep the benchmarks and node disks off tmpfs

* ci: export the work directories from RUNNER_TEMP rather than job env

* ci: run the ISO and benchmark workloads from the nvme scratch area

* perf: run guest NICs on vhost-net with multiqueue

Guest-to-guest VPC throughput measured 1.68 Gbit/s single-stream against
21.8 Gbit/s host-to-host on the same underlay, and did not improve with
more streams. QEMU's -netdev tap defaults vhost to off, so the whole
datapath ran in the main loop thread in userspace: that thread sat at
59-65% CPU while all four vCPU threads idled at ~4%.

Every tap netdev now carries vhost=on, and VPC ENIs additionally run
multiqueue at min(vCPUs, 8) queue pairs. Multiqueue needs all three of
the tap, the netdev and the device to agree, so TapNetDev and NetDevice
derive the netdev options and the 2N+2 MSI-X vector count from one queue
figure rather than leaving callers to keep them in step.

The QMP hot-plug path takes the same options as cold boot, with a test
comparing it against the rendered cold-boot strings so the two cannot
drift. MMIO machines stay single-queue: they have no MSI-X.

* ci: check out the sibling repos the go workspace needs in the ISO cells

* ci: skip cell-21 workload cleanup when the workload never ran

* ci: size the cell-21 node at 8 GiB and keep its serial log

* ci: keep the cell-21 node diagnostics alongside the serial log

* fix: let the daemon open /dev/vhost-net and delete multi_queue taps

Enabling vhost=on broke instance launch two ways. DevicePolicy=closed gates
the cgroup device list before capabilities are consulted, so QEMU's open of
/dev/vhost-net returned EPERM despite CAP_DAC_OVERRIDE; add the device to the
allow list and bump the unit version. Separately, `ip tuntap del` re-opens the
device with TUNSETIFF and fails with EINVAL on a multi_queue tap, leaking it on
every teardown; route deletion through `ip link del`, which is flag-agnostic.

* perf: default guest NICs to a single queue

Multiqueue measured a net loss. Spreading one flow across queue pairs reorders
packets and TCP reads that as loss: a 4-vCPU guest fell from 1.76 to 1.50
Gbit/s, with cwnd collapsing on spurious retransmits. The host overlay funnels
a node pair onto one softirq core, so the extra queues have no headroom to win
back what the reordering costs. Keep the plumbing and its tests behind
MultiqueueNICs so re-enabling is one line once that funnel is fixed.

vhost-net stays on unconditionally; it moves the datapath off the QEMU main
loop, measured at 60% of a core under load against 3% with it.

* fix: raise the UDP receive buffer for predastore's QUIC transport

Predastore carries blob, meta and raft over QUIC and quic-go asks for a 7MiB
receive buffer. Left at the kernel default of 208KiB it silently dropped
datagrams under load: the four-node cluster had shed 80k-125k each, which
failed shard writes, put raft into repeated elections, and ultimately handed
guests an I/O error that cost two of them their root filesystems.

Adds a sysctl stage writing /etc/sysctl.d/99-spinifex-net.conf, so the setting
lands in the ISO image and on every node push rather than living in a runbook.

* ci: give the cell-21 workload an identity the node accepts

* feat: tie the guest MTU and NIC multiqueue to ipsec_enabled

ESP costs 34 bytes on top of geneve's 58, so a cluster running the overlay in
plaintext can advertise 1442 instead of 1408 — worth roughly 10% of guest
throughput. Derive it from network.ipsec_enabled rather than hardcoding the
conservative figure.

Multiqueue moves with the same flag, because its sign depends on it. Behind
IPsec it costs ~12%: ESP has no L4 ports, so RSS funnels a node pair onto one
core and extra queues only reorder packets, which TCP reads as loss. Without
IPsec the sending host's single vhost thread saturates first and queues are
worth +54%. IPsec on with multiqueue on is the worst of the four combinations,
so it stops being a standalone knob and becomes vm.Deps.MultiqueueNICs.

The reconciler only ever created a subnet's DHCPOptions row and never revisited
it, so the create-time MTU stuck for the life of the subnet and this change
would have applied to new subnets only. Worse in the other direction: turning
IPsec back on would have left subnets advertising 1442 over ESP, which drops
large segments with no ICMP to recover from. applySubnets now diffs and updates
in place.

reconcile.Config takes IPSecDisabled rather than IPSecEnabled so the zero value
is the conservative MTU — a caller that forgets it is merely slower.

* docs: add an install-time performance tuning guide

Measured on the four-node cluster rather than inferred: the UDP receive buffer
sysctl, what IPsec actually costs and why, the multiqueue sign flip, the overlay
MTU budget, and the jumbo-frame check that must precede enabling it.

A starter doc — several sections end in an open question rather than a
recommendation.

* ci: keep the cell-21 node alive for the workload step

* ci: collect the cell-21 qemu log and widen its timeout

* feat: derive the guest MTU from the fabric, and deepen the virtio NIC config

The overlay overhead is passed on to the guest rather than hidden from it.
Hiding it means running the fabric far enough above 1500 that a standard guest
MTU fits in the headroom, which is what the large public clouds do — but they
own the switches. On a fabric we do not control, the honest figure is the one
the path can carry, and a jumbo underlay should reach the guest: 9000 gives
8942, or 8908 with IPsec. network.underlay_mtu is the lever; SubnetMTU spends
it. Configured rather than probed, because a node's own NIC MTU says nothing
about the switch between it and its peers.

host_mtu sets VIRTIO_NET_F_MTU so a guest that never takes a DHCP lease —
statically addressed, or IPv6-only — still learns the ceiling.

rx/tx_queue_size raise the virtio ring from QEMU's default 256. That default is
a packet-rate ceiling rather than a memory saving: a vCPU preempted for a
fraction of a millisecond fills all 256 slots and the overflow is dropped.

ethtool is the only way to read NIC offload, ring and channel state, so a node
without it cannot be diagnosed for throughput at all.

* ci: give the cell-21 workload its own guest key

* fix: set the guest MTU on the tap, not just in the guest

The tap was created and brought up without an MTU, so it stayed at the
kernel default of 1500 while DHCP and host_mtu told the guest something
else. Harmless at 1442; it silently blackholed every large frame on a
jumbo underlay, with no ICMP back because the drop is at the first hop.

TapSpec.MTU comes from the same guest overlay MTU the DHCP option and
host_mtu already use, and is applied in the bring-up call so a size the
fabric cannot carry fails the launch instead of degrading quietly.

* fix: stop setting tx_queue_size, which QEMU caps at 256 for tap

QEMU only honours a tx_queue_size above 256 for vhost-user and
vhost-vdpa backends. On a tap it rejects the value outright rather than
clamping it, so every launch died with "must be a power of 2 between
256 and 256" and the instance went straight to terminated.

rx_queue_size is unaffected and stays at 1024. A test pins the absence
of tx_queue_size across machine types and queue counts.

* docs: lead the tuning guide with the overlay segmentation finding

The guide's headline was a 5.4x that came almost entirely from turning
IPsec off, and it treated MTU and the fabric as the main levers. The
host reaches 92.6 Gbit/s at MTU 1500 on the same NIC, so the fabric is
not the constraint and the encrypted default is not the thing to tune
away from.

Adds the host-versus-guest comparison up front, documents
network.underlay_mtu, and makes the missing segmentation offload the
first open question.

* ci: stop deselected matrix cells failing in teardown

* docs: quantify what disabling overlay IPsec is worth

The guide described the trade without the numbers an operator needs to
make it. Adds the measured 4.9x, notes that the MTU and multiqueue
changes follow ipsec_enabled rather than being separate knobs, and
records two transition hazards: a stale wide MTU on running guests, and
RunInstances failing while the OVN flows barrier catches up with the new
SAs.

* ci: collect and retain the e2e benchmark and cluster logs

Cells 21 and 22 both copied two paths that only ever exist on the nodes, so
the benchmark JSON was never uploaded and cell-22 collected nothing at all.
Both now gather what they actually produce, and keep it for 90 days.

* fix: quieten spx by installing an explicit CLI logger default

spx never set a process logger, so it inherited whatever a linked package
left behind — until now a JSON handler at Info on stdout, interleaving
library log records with command output and breaking piped use.

Execute() claims the default before any command runs: text on stderr,
LevelError, so commands report failures through their own stderr writes and
libraries stay quiet. --verbose/-v raises to info and SPX_LOG_LEVEL sets an
arbitrary level, the flag winning over the environment. Service subcommands
still call initTelemetry, which replaces the handler outright.

No root --debug flag: viperblock, qemunbd, nats and awsgw each define their
own --debug with a service-specific meaning, and a root persistent flag would
shadow inconsistently depending on the command.

The guard test samples the handler at package-init time rather than inside
the test, because tests in this package start services that install their own
logger legitimately.

* feat: private /admin/CreateAccount for self-service tenant signup

Add POST /admin/<Method> to the AWS gateway: SigV4-signed, JSON in and
JSON out, callable only by an IAM user in the super-admin account holding
spinifex:<Method>. CreateAccount is the one method, so a signup form can
provision a tenant without an operator shell. No new service, port, unit
or certificate — it mounts inside the gateway's existing authenticated
group and inherits its auth, throttling and tracing.

Provisioning is resumable rather than transactional, which fits stores
that have no transaction. Two CAS creates carry the correctness: the
client token admits one in-flight attempt and makes a lost response
replayable for 24 hours, and the name reservation makes duplicate account
names impossible. Every step after the account exists is create-if-absent,
so a retry with the same token finishes the job instead of failing.

The CLI and the endpoint share one provisioning helper, which closes a
gap on both at once: CreateAccount never checked names, so running
`spx admin account create` twice produced two accounts that differed only
by ID.

The response waits for the account's default VPC over a new
ec2.EnsureDefaultVpc request/reply, rather than trusting the existing
fire-and-forget iam.account.created publish — credentials for an account
that cannot launch anything are worse than a slower call.

[signup] max_accounts bounds how many accounts may exist; absent means
uncapped, which is what every cluster does today.

* fix: stop the awsgw template hardcoding one deployment's console URL

console_url shipped as https://console.spx3.com, so every fresh install —
including an on-premise cluster that will never run signup — was
configured to point new accounts at our console. It is the only
deployment-specific domain in any template. It now ships empty, and the
gateway warns when it provisions an account without one, since a blank
sign-in link is otherwise visible only to the customer who receives it.

Extract the remote client from the command body while here. The signing,
request shape and error decoding are the part a Cloudflare Worker
mirrors, and as a function they are testable against a TLS test server
rather than only by hand against a live cluster.

* refactor: drop console_url from signup and default max_accounts to 128

The gateway never read console_url — it passed the value straight through to
the response, and the idempotency record froze it for 24 hours so a corrected
typo still replayed stale. The client that made the request already knows
where it wants to send the new tenant.

max_accounts is now a pointer in the parsed config so an absent [signup]
section takes the 128 default while an explicit 0 still means uncapped.

* feat: run the predastore fault-injection harness as cell-24

Cell-23 asks how fast predastore is when every node is healthy; cell-24 asks
whether it survives one that is not. It runs after cell-23 rather than beside
it: both want a quiet single runner, and a benchmark sharing a machine with a
fault injection run measures the wrong thing.

The port offset keeps the two clear of each other even so, and the job clears
stale nodes on entry and exit, since a run killed before its cleanup trap
leaves one holding ports that fail the next run somewhere unrelated.

* ci: keep the throughput benchmark's output with its results

The run log only existed in the job log, so the artifact it uploaded could not
be read without going back to the run that produced it.

* ci: keep the fault-injection run log with its results

events.txt carries the timeline and the FAIL line, but not the build output or
anything Warp wrote before the harness took over, so a failed cell could only
be read from the job log it was printed into.

* fix: serve the cluster region to the console instead of hardcoding it

The console hardcoded ap-southeast-2 as its SigV4 region in seven files, so on
any other cluster the credential scope was wrong and the gateway rejected every
signed request.

The SPA is embedded in the binary, so a build-time value would pin one binary to
one region. The UI server now serves GET /api/config with the region, no-store
so a proxy fronting several clusters cannot serve one the other's region, and
the SPA loads it once before render.

The region comes from the serving node's config because awsgw pins signature
verification to that same field. Reading the cluster-wide [aws] region instead
would let a cluster whose two keys disagree pass review and still fail to
authenticate.

Also relabels the login card as Spinifex credentials, since the fields are not
AWS ones, and hides the CA install banner unless the console is reached
directly: behind a proxy with a publicly trusted certificate there is nothing
for the cluster CA to fix.

* fix: say once when the host firewall will not be maintained

Both quiet outcomes of the reconcile — no cluster config, and the policy
switched off — return nil without logging, so a node that never arms is
indistinguishable in the journal from one that armed on its first pass.

* test: arm the host firewall before asserting on its peer set

Only the ISO install arms the policy; every other path writes off to the
mode file, so the daemon disables the firewall and never writes a peer
set. The test read that file as its baseline, which it could never have.

It now switches the mode on for its own duration and puts it back, waits
for the peer set the way install-node.sh does, and on failure reports the
mode, the node count and what the daemon said rather than just the
missing file.

* test: move the console region test to the external cmd package

It was in package cmd, which test-package-check rejects, so preflight
failed on the branch. The hook follows the pattern already in
export_test.go.

* test: make the reboot EIP diagnostic capable of naming the drop

The two ofproto/trace probes injected packets with no TTL, so OVN's router
killed them at lr_in_ip_input and both traces ended early for a reason that
had nothing to do with the failure under investigation. A keyword filter then
stripped the table-match lines, hiding where each trace stopped.

Traces now carry a TTL and are kept whole, the real datapath megaflows for the
guest reply are dumped alongside them, and any drop matching the guest source
is resolved from its OpenFlow cookie back to the Southbound logical flow that
installed it.

* fix: exempt an EIP instance from the subnet drop gate with allow, not reroute

A subnet with no route of its own carries a priority-1100 drop policy, and an
instance with an external IP is lifted above it by a priority-1200 policy. That
policy rerouted to the pool gateway, which in distributed NAT is outside every
logical router port subnet, because the gateway LRP is the link-local /30. The
static default route survives that by naming an output port; a routing policy
has no such field, so ovn-northd discarded all three of them and the drop gate
below swallowed everything the instances sent.

The effect was that every external IP answered inbound traffic and none of it
came back: the SYN reached the guest, the guest replied, and the reply died in
the router's policy stage. Guest-initiated egress was lost the same way.

The policy only ever needed to lift the gate. The router's default route already
points at the gateway, so allow leaves the routing decision intact and gives
northd nothing to reject.

* test: match the log the firewall quorum gate actually emits

The assertion waited for "chassis encap addresses; not writing a partial peer
set", which no code has ever logged. The reconcile reports a short chassis list
as "OVN reports N of M chassis encap addresses" and the maintain loop carries
that into its retry warning, so the wait could only ever time out.

Arming the node in the previous commit got the test as far as this assertion for
the first time, which is why it surfaced now. The failure also prints the
journal tail and the same inputs the earlier wait reports.

* fix: stop one unreadable volume document failing every volume listing

A single volume document whose shards no longer reconstruct made
DescribeVolumes, DescribeVolumeStatus and DescribeVolumesModifications
fail for every account, because the listing returned the first fetch
error rather than skipping the document.

ListVolumes now skips a document it cannot read or decode and logs the
skip, mirroring ListAMIs. Callers whose answer would be wrong rather
than merely partial take ListVolumesStrict: the orphan scan and the
snapshot in-use check both gate destructive work on a complete list.

The tolerance covers fetch failures as well as decode failures. An
object whose shards no longer join is as unusable as one whose bytes
will not parse, and it was the fetch path that took the cluster down.
2026-08-15 14:22:49 -05:00
Julian Sommer 8a94886b13 feat: cloud-init EC2 datasource (#411) 2026-06-25 13:48:08 +10:00
Josh Siviour 1873f45d26 Resilient resource lifecycle (ADR-0001..0006): EKS multi-node teardown, idempotent deletes, GC backstops (#357)
* fix: idempotent Delete* across VPC family + volume (RLC1)

Delete handlers now return empty success when the resource is already
absent (nats.ErrKeyNotFound), instead of *NotFound. Transient read
errors still map to ServerInternal. Covers DeleteVpc, DeleteSubnet,
DeleteSecurityGroup, DeleteNetworkInterface, DeleteInternetGateway,
DeleteNatGateway, DeleteRouteTable and DeleteVolume.

Makes destroy retries converge instead of failing mid-graph, removing a
source of orphaned/zombie resources between deploys. Adds a
TestRLC1_*DeleteIdempotentOnAbsent invariant per package and updates the
daemon delegation table; supersedes the old absent->NotFound tests.

* feat: prune orphan ENI LSPs in reconcile applyPorts (ADR-0003 §4)

applyPorts was create-or-update only, so a guest LSP whose
spinifex:eni_id no longer maps to an intent ENI survived instance
terminate and VM-host reinstall — the orphan-LSP capacity-drift root
cause. It now takes pruneOrphans (mirroring applySGs): on a full
reconcile it lists LSPs and tears down each managed ENI port absent from
intent via the composed topology.DeletePort cascade (clears port-group
memberships, then deletes the LSP). The apply-only startup path does not
prune, preserving in-flight ports until subscribers converge.

Adds ListLogicalSwitchPorts to the OVN client (live + mock). Invariant
TestRLC5_OrphanLSPPrunedAfterReconcile guards ADR-0003 §4; a startup-race
test guards the apply-only path.

* feat: idempotent + tracked instance terminate (ADR-0003 §1/§2)

Make terminate idempotent across all three layers and break the
un-terminable-ENI deadlock, and record per-dependency teardown so the
GC backstop can later tell a fully-reaped instance from a dangling one.

- vm.Manager.Terminate: absent / already-terminated / shutting-down now
  return nil instead of NotFound / invalid-transition (ADR-0003 §2).
- VM.Teardown map + teardown.go marks: sync steps stamped Done/Failed via
  cleaner error returns; fire-and-forget OVN LSP and NAT rule stamped
  Pending for the reconciler / GC reaper (ADR-0003 §1).
- InstanceCleaner: DeleteVolumes / ReleasePublicIP / DetachAndDeleteENI /
  RemoveFromPlacementGroup / ReleaseGPU now return error.
- vpc ForceDeleteInstanceENI bypasses the in-use guard for the owning
  instance, breaking the failed-detach deadlock; plain delete still
  rejects an in-use ENI held by another instance.
- gateway TerminateInstances: KV-health-gated idempotent absence (a failed
  terminated-bucket query does not fabricate success, ADR-0003 §3).
- Invariants: TestRLC1_TerminateIdempotentOnAbsent, TestRLC4 teardown-map
  stamping + failed-dependency, TestRLC_ENINonDeadlock.

* feat: reconciler GC backstop framework + terminated-teardown reaper (ADR-0003 §3)

Add the shared reality->desired garbage-collection framework (inverse of
Restore) and its first reaper, closing the gap 295.3 deferred: nothing
retried pending/failed teardown or purged the terminated record when its
dependents reached done.

- vm/gc.go: GarbageCollector + Reaper interface (Class/Scope/Sweep).
  KV-health gated — holds and alarms when the desired-state cannot be
  trusted, never reaps against it. ClusterWide reapers run only on the
  elected leader (optional elector); NodeLocal run on every node. Start
  sweeps immediately then every GCInterval.
- vm/teardown_reaper.go: TerminatedTeardownReaper (node-local). Scans this
  node's terminated records, re-drives each not-done dependent through the
  idempotent cleaner, and purges the record once all reach done. Records
  already complete on arrival are left to the bucket's 1h TTL.
- StateStore gains DeleteTerminatedInstance (JetStream impl already existed).
- daemon: wires the GC after the pending watchdog, gated on a cheap
  JetStream AccountInfo health probe.
- Cluster OVN-LSP arm already lands via the reconciler drift prune (295.2).
- Invariants: TestRLC5_GCRetriesPendingTeardownToDoneThenPurges,
  TestRLC5_GCNeverPurgesIncompleteRecord, TestRLC5_GCHoldsWhenKVDegraded,
  TestRLC5_GCSkipsOtherNodesRecords.

* feat: VPC-family dependency guards (ADR-0004 rule #3)

DeleteSubnet blocks while a live ENI attachment (a resident instance)
remains; available/orphan ENIs do not pin it. DeleteNetworkInterface
guards on the structured attachment (eniIsLiveAttachment), not a bare
in-use string. DeleteNatGateway blocks while a live route table forwards
to it and disassociates its EIP keeping the allocation (AWS parity);
CreateNatGateway now marks the EIP associated so the disassociate is
real and a second NAT GW cannot reuse the allocation.

Binding invariants: TestRLC3 dependency-guard completeness across the
subnet/ENI/NAT-gateway handlers.

* feat: EBS volume data-safety GC override (ADR-0005)

The shared GC backstop reaps actual-desired for every other class; for
volumes that default is forbidden because they carry customer data. Add
VolumeLeakReaper (node-local, rides the 295.5 GC): it marks a volume left
attached to a definitively-gone instance as orphaned (a non-destructive
tag) and alarms, but NEVER issues a delete. The daemon feeds it only this
node's terminated instances whose volumes-teardown failed, so the shared
predastore scan can never false-mark another node's live-instance volume.

DeleteVolume idempotency + the detach/snapshot guards + the
DeleteOnTermination teardown retry already landed (295.1/295.3/295.5).

Binding invariants: TestRLC5 (GC marks+alarms, never deletes data),
TestRLC3 (detach-before-delete).

* test(elbv2): lock ADR-0002 §3 live-only TG in-use guard (mulga-siv-295.4)

* feat(eks): idempotent DeleteCluster on absent + ADR-0006 lifecycle invariants (mulga-siv-295.8)

DeleteCluster returns empty success when the cluster meta is already swept
(Common Resource Lifecycle Contract #1), so tofu destroy retries converge.
Adds TestRLC1 (idempotent delete), TestRLC2 (billable-before-KV-sweep ordering)
and TestRLC3 (NLB target-group no-orphan, riding ADR-0002/172).

* fix(eks): GC reaper terminates orphan control-plane VM after cluster delete (mulga-siv-294)

A normal DeleteCluster can leave a running control-plane VM behind (terminate
completes async; a daemon restart re-launches it from saved running-state) after
the cluster meta is swept — a billable orphan with no owner. Add EKSBillableReaper
on the 0003 GC backstop: a running managed-by=eks CP VM whose cluster meta is
definitively gone is terminated. The CP ENI now carries the customer-account tag
so a system-account VM can be mapped back to its cluster meta; the reaper never
reaps on uncertainty (ENI gone/untagged or meta present).

* feat: reclaim orphan EKS NLB + NAT-GW EIP in billable reaper

The billable GC reaper terminated an orphan control-plane VM but left the
cluster's NAT-gateway EIP and NLB front-end NAT behind when the meta was
gone. After a successful terminate, run the name/tag-driven DeleteClusterNLB
+ DeleteClusterCPVPC teardown (idempotent, meta-independent) so the billable
NAT-GW EIP and NLB NAT are reclaimed too. ADR-0006 §5.

* fix: persist NAT-GW & route-table tags and reorder CP-VPC teardown to reclaim EKS NAT-GW EIP

CreateNatGateway and CreateRouteTable both dropped input.TagSpecifications,
so the tag-driven DeleteClusterCPVPC teardown could not discover the cluster
NAT gateway or its private route table. The explicit DeleteNatGateway +
ReleaseAddress were skipped and the billable NAT-GW EIP leaked under the
system account on every clean DeleteCluster.

Three fixes:
- CreateNatGateway persists ExtractTags(TagSpecifications, natgateway).
- CreateRouteTable persists ExtractTags(TagSpecifications, route-table).
- DeleteClusterCPVPC tears down route tables before the NAT gateway, so the
  rule #3 route-ref guard (DependencyViolation / InvalidAddress.Locked) is
  not tripped and the EIP releases.

Adds tag-persistence regression tests for both create paths and a teardown
ordering invariant (TestRLC5). Validated live: NAT-GW EIP released cleanly,
no DependencyViolation/Locked.

* fix: route EKS control-plane VM terminate cross-node + DELETING teardown backstop

Multi-node EKS cluster delete wedged in DELETING and stranded the billable
NAT-GW EIP. Two root causes, both invisible on a single-node box:

Cross-node terminate was never routed. TerminateSystemInstance was node-local,
so terminating a CP VM owned by another node returned NotFound (treated as
idempotent) and the teardown deleted a still-attached ENI
(InvalidNetworkInterface.InUse). That error short-circuited purgeClusterInfra
before the managed CP-VPC teardown that releases the NAT-GW EIP. Split
TerminateSystemInstance into a local body plus a routing wrapper that issues
system.TerminateInstance.<id> to the owning node. Bind that subscription for
every system-managed VM (elbv2 + eks) via the OnInstanceUp funnel, so CP VMs
placed on the coordinator's own node (and recovered after a daemon restart) are
reachable too, not only remotely-launched ones.

No DELETING backstop. A failed synchronous DeleteCluster left the cluster
DELETING with nothing to re-drive it. Add EKSDeletingReaper (vm.Reaper, class
eks-deleting) that re-runs purgeClusterInfra for clusters wedged past a min-age,
gated by the per-cluster reconciler leader lease. Stamp ClusterMeta.DeletingSince
on the transition into DELETING.

TerminateK3sServerVM additionally waits out any residual ENI-InUse with a bounded
budget as defense-in-depth.

Validated live on env19 3-node: first delete-cluster converges in 29s, both
remote CP VMs terminated cross-node, NAT-GW EIP released, backstop never fires.

* fix(network): gate gateway reconcile on real datapath reachability

Post-reboot the external OVN datapath can stay dead while every
control-plane signal is green: the chassisredirect SB binding is claimed
(up=true), NAT rows are present and the host neigh is primed, yet
ovn-controller leaves stale gateway/localnet flows so EIP north-south and
the VM->gateway heartbeat forward nothing. ensureGatewayClaimed only
nudges recompute when the binding is unclaimed, so a claimed-but-dead
datapath is never detected or repaired.

Add ensureGatewayDatapath: after the SB claim converges, probe the
gateway LRP IP (OVN answers ICMP natively, no guest or security-group
dependency), and on a miss force one ovn-controller recompute and
re-probe until a short deadline. Reuses the existing recompute nudge and
no-ops when no verifier is wired or no gateway IP resolves.

* fix: self-heal external uplink after reboot boot-race

Post-reboot, ovs-vswitchd/ovn-controller order after the passive
network.target rather than network-online.target, so they start
concurrently with systemd-networkd. Under a heavy boot the WAN-glue veth
(veth-wan-ovs) can come up admin-down before networkd brings it up,
leaving br-wan with no carrier and the external datapath dead while every
control-plane signal reconciles green.

Broaden the datapath health-gate remediation from recompute-only to
RepairDatapath: re-assert the veth admin state (covers the admin-down
link, which a flow recompute cannot revive) then recompute (covers a
stale gateway ofport). Idempotent; the veth ops are skipped in
physical-uplink mode where the device is absent.

Also capture ip -d link (veth admin/carrier) and ovs-ofctl show br-ext
(ofport) in the reboot diag bundle to disambiguate the two failure shapes
from CI artifacts.

* fix: restore AWS-faithful Delete* NotFound; move idempotency to teardown callers (mulga-siv-306)

RLC1 (f9218982) made EC2/VPC/EBS Delete* handlers return success on an absent
resource, breaking AWS compatibility and the cross-account isolation signal (a
cross-account delete reads as absent -> success instead of *.NotFound).

Restore the AWS contract at the API while keeping lifecycle convergence:
- Handlers return canonical *.NotFound on absent: DeleteVpc, DeleteSubnet,
  DeleteSecurityGroup, DeleteInternetGateway, DeleteNatGateway, DeleteRouteTable,
  DeleteVolume, and the public DeleteNetworkInterface (ForceDeleteInstanceENI
  keeps its idempotent force path, ADR-0003 section 2).
- Add awserrors.IsNotFound; destroy orchestration (instance terminate, EKS
  CP-VPC teardown, EKS IGW/SG cleanup, k3s rollback, ELBv2 ENI/SG teardown)
  tolerates NotFound so re-issued/double-targeted deletes converge.
- Flip the RLC1 unit invariants to assert *.NotFound on absent; revert the
  daemon round-trip cases; add IsNotFound + CP-VPC convergence tests.

ELBv2 deletes and TerminateInstances stay idempotent (AWS itself is).

* fix(network): gate ingress EIP datapath on guest SB Port_Binding convergence

TestMultinodeGuestSSH intermittently times out (Connection timed out, not
#355's reset-by-peer) connecting to a fresh trio instance's public IP after
the suite churns instances across all three chassis. The instance is running
and AddEIP has installed the DNAT row, flushed/primed the host neigh, and
barriered the gateway-chassis flow — but none of that proves the
gatewayLRP->guest geneve hop: until the guest ENI's southbound Port_Binding is
up on its hosting chassis the cross-node flow is missing and the DNAT-translated
packet blackholes.

Add ensureGuestPortDatapath, the guest-side analog of ensureGatewayDatapath:
after AddEIP, probe the guest LSP's SB Port_Binding (ovn-sbctl up column); on a
miss force one ovn-controller recompute (binds the port / installs the remote
flow) and re-probe until a short deadline. Recompute, not RepairDatapath: this
is flow/binding convergence, not a WAN-uplink fault. No-op when no verifier is
wired or the EIP carries no guest port. spec.PortName is populated for every
associated EIP regardless of NAT mode.

Extends GatewayClaimVerifier with GuestPortUp and wires the gate into
applyEIPs so it runs in the continuous reconcile loop on every node.

* Revert "fix(network): gate ingress EIP datapath on guest SB Port_Binding convergence"

This reverts commit 728b1a9cec6eaf5c7ef5e9eda4469f239b4d8fc0.

* fix(network): key EIP DNAT delete on external IP, not logical IP

A dnat_and_snat row's identity on the VPC gateway router is its external
IP. The logical (private) IP is not a stable key: the EIP pool round-robins
and instance private IPs are reused as instances recycle, so the same
logical IP is held by different EIPs over time.

DeleteEIP deleted the row by logical IP, so a stale or retried delete for a
freed EIP clobbered whichever live EIP now held that recycled private IP --
the next owner's row vanished with no re-add and its public IP went dark
(SSH SYN never left br-wan: Connection timed out). Lifecycle-resilience
teardown/GC retries amplified this by firing vpc.delete-nat repeatedly.

Key the delete on the external IP via DeleteNATByExternalIP and skip when
no external IP is supplied (no EIP means no dnat_and_snat row). A stale
delete now targets the freed EIP's own external IP (ErrNATNotFound no-op)
and can no longer touch the live row.

* refactor: relax DeleteNatGateway to AWS-faithful

Remove the route-reference dependency guard (checkNatGatewayRouteRefs) so a
NAT gateway deletes even while route tables still forward to it, matching AWS
(the route blackholes). The reconciler's loadNATGWs drops the SNAT once the
record leaves the active bucket, so a forwarding route is not a delete-blocking
dependent. EIP is still disassociated on delete (no leak).

* test: invert NAT-GW route-ref invariant to AWS-faithful

TestRLC3_NatGatewayBlocksWhileRouted asserted DependencyViolation while a
route forwarded to the NAT gateway, which is AWS-infaithful. Replace with
TestRLC3_NatGatewayDeletesWhileRouted: delete must succeed whether or not a
live route still targets it (the route blackholes; the reconciler drops the
SNAT). Per ADR-0004 §2.

* fix: tear down NAT-GW SNAT on delete (restore delete-time fan-out)

The guard commit (53ed55a9) dropped publishDeleteEventsForNatGateway on the
assumption a routed NAT GW could never be deleted. With the route-ref guard
removed, deleting a NAT GW while routes still target it left the SNAT in
place (applyNATGWs is create-only, so the reconciler never prunes it) and
egress kept working — TestNATGateway's post-teardown 'lost internet' check
failed. Restore the fan-out: on delete, scan route tables and publish
vpc.delete-nat-gateway per associated subnet so egress stops, while the
route entry survives as a blackhole (AWS-faithful).

* fix: probe EIP datapath in reboot self-heal, not the gateway LRP IP

The post-reboot gateway datapath self-heal probed the gateway LRP IP for
liveness, which OVN answers natively at the router — so it stayed green even
when the EIP NAT pipeline was stranded (ofproto/trace dropped EIP traffic at
table 0). RepairDatapath never fired and TestRebootResilience timed out, with
the drift loop re-probing the same false-green every cycle.

Prefer probing an associated EIP: force a fresh ARP of the dnat_and_snat
external IP (flush neigh, ping to trigger, read the resolved MAC). OVN answers
ARP for the external IP from the gateway chassis independent of the guest, so a
resolved MAC proves the WAN uplink forwards and the NAT flows are installed —
the signal the LRP IP cannot give. Fall back to the LRP IP for VPCs with no
EIP. The existing drift-loop cadence now re-heals a later flow strand.

* fix: lb-agent heartbeats over mgmt port, not the WAN/EIP datapath

The lb-agent heartbeat to awsgw is control-plane and must survive a host
reboot that strands the OVN/EIP north-south data plane. Customer
(internet-facing) lb-agents heartbeated over the WAN GatewayURL, riding the
EIP datapath, so after a reboot the ALB never reported healthy until the
datapath self-healed. System LBs already heartbeated over the on-link
br-mgmt NIC; this extends that path to every lb-agent.

buildLBAgentEnv now always uses mgmtGatewayURL (on-link MgmtBridgeIP, the
mgmt NIC the lb-agent VM already carries), falling back to the WAN URL only
when no mgmt bridge exists. Drops the account-id branch.

* fix: re-heal guest ENI SB Port_Binding post-reboot so EIP ingress converges

Post-reboot every EIP in a VPC goes dark north-south: the DNAT row, host
neigh and gateway-chassis flow are all in place (ARP to the EIP resolves)
but the gatewayLRP->guest flow is missing until ovn-controller binds the
guest ENI's SB Port_Binding, so the DNAT-translated packet blackholes and
the public IP is unreachable on an otherwise-running instance.

Restore the guest-port convergence gate in applyEIPs: probe the guest LSP's
SB Port_Binding up column; on a miss force an ovn-controller recompute and
re-probe until a deadline. Unlike the earlier reverted form, recompute on
every miss, not once: after a host reboot the guest tap is replumbed several
seconds after the reconcile runs, so a single early nudge fires before the
port exists and never binds it. The window is widened to span guest boot.

This is the southbound analog of the gateway datapath self-heal; the EIP
ARP probe cannot detect it because the gateway chassis answers ARP for the
external IP even while the guest delivery flow is absent.

* fix(network): force post-reboot EIP recompute on guest-port bind, startup-only

The reboot suite passed only by accident: the pre-#351 gateway-claim verifier
polled the always-chassis-less gateway LRP, so it fired an ovn-controller
inc-engine/recompute on every reconcile. That spurious recompute was load-bearing
- it reinstalled the centralised gateway DNAT flows that ovn-controller's
incremental engine misses on a cold (post-reboot) start. #351 correctly switched
the check to the chassisredirect port, eliminating the every-cycle recompute, and
the EIP datapath went dark post-reboot with every control-plane signal green.

Restore the kick, scoped to the post-reboot startup path: applyEIPs now gates a
single recompute on the guest ENI's SB Port_Binding chassis claim - the reliable
signal the tap is back, unlike the up column which stays stale-true across a
reboot. Drift never recomputes, preserving the #351 fix for freshly attached
EIPs. Probe renamed GuestPortUp -> GuestPortBound (chassis, not up).

* Revert "fix(network): force post-reboot EIP recompute on guest-port bind, startup-only"

This reverts commit 792e318211ef03efbe24febeb470749d88c0b03c.

* test(e2e/reboot): capture dataplane diag on ALB serve failure

The post-reboot ALB-serve assertion (8.6) failed with no flow/ARP evidence:
the OVN/OVS dataplane dumps only ran on the 8.5 targets-unhealthy path, but
8.5 passes on the daemon's own health view while the north-south EIP datapath
is dark, so the serve failure (8.6) left nothing to localise the drop.

On a serve failure, capture dumpALBProbe/dumpOVNDataplane/dumpOVNClaimState/
dumpHeartbeatDiagnostics/dumpAppDiagnostics before failing. Add to the OVN
dataplane dump: dump-flows br-ext and fdb/show br-ext (north-south bridge,
previously only br-int), and a real ARP probe that flushes the neigh entry
first so primeReachability's pre-seeded reachable entry can no longer mask an
unanswered ARP. Pure diagnostics; no production change.

* test(e2e/reboot): decisive datapath diag — untruncate br-int, real-ingress ofproto/trace, conntrack + tap capture

* test(e2e/reboot): add south->north return-path ofproto/trace to localize egress drop

* test(e2e/reboot): derive LRP MAC from realized flow + remediation experiment (recompute vs ovn-controller restart)

* test(e2e/reboot): dump persisted SB MAC_Binding + external MACs; flush experiments (conntrack vs MAC_Binding) to isolate recompute-resistant return-path drop

* test(e2e/reboot): untruncate Port_Binding + enumerate DGP/chassisredirect claim state (does cr-gw row exist + resident chassis)

* test(e2e/reboot): dump NB source of return-path drop (lflow stage, NAT external_mac/options, LR policy, LSP port_security)

* fix: exempt public-IP instances from subnet egress drop gate (mulga-siv-311)

Post-reboot reconcile installs the priority-1100 subnet egress drop gate for an
IGW-attached subnet that has no 0.0.0.0/0 route, but nothing punched the subnet's
public-IP instances through it. lr_in_policy runs before lr_out un-DNAT/SNAT, so an
inbound connection's reply still carries its private source when it hits the gate and
is dropped. The ALB/EIP datapath goes dark south->north post-reboot while NAT, ARP,
chassis and guest-port binding all read green; the pre-reboot path survives only
because the event-driven gate never evaluates a subnet created after IGW attach.

Install the existing priority-1200 /32 reroute (above the gate) for every public-IP
instance during reconcile. Reroute only: the instance's dnat_and_snat already supplies
SNAT, unlike EnsureSystemInstanceEgress which also adds a plain snat. Public IPs come
from two disjoint sources -- auto-assigned/ELB addresses on the ENI record and user
EIPs in the EIP bucket -- so drive the exemption from both intent.Ports (new
PortSpec.PublicIP) and intent.EIPs.

* refactor: scope public-IP drop-gate exemption to gated subnets

Only install the priority-1200 reroute when the instance's subnet actually carries
a drop gate. Routed subnets egress via their priority-1000 reroute and need no
exemption, so bounding on gate presence keeps the change inert for IGW-routed and
NATGW-routed subnets (no redundant or overriding policy). Adds a negative test.

* refactor: drop unused RemoveEIPInstanceEgress

No production caller; the exemption is install-only in reconcile. Removed the
interface method and impl rather than leave dead API surface.

* test: dump guest console + OVN/datapath diag on SG-to-SG client SSH timeout

TestSGToSGDatapath waited for client-vm SSH via EventuallyErr and reported
only 'exit status 255' on timeout — no guest-side or datapath state. When the
fresh public-IP VM is unreachable for the full window the failure was
undiagnosable from CI artifacts.

Swap the wait to the non-fatal trySSHReady probe and, on timeout, call
DumpVPCFlowDiagnostics (guest console tail, ovn-nbctl/sbctl show, NAT rows,
br-int flows / conntrack / host ARP keyed on the public + private IP) before
Fatal, mirroring vpc_test/baseline_test. Captures persist to the artifact dir
for the Stage 2 analyzer bundle.

* fix: ownership-scope public-IP teardown to survive IP recycling

A live instance's dnat_and_snat rule, host ARP, and IPAM lease were torn down
by the delayed garbage-collection teardown of a different, long-dead instance
that previously held the same recycled public IP. The 2-min vm/gc
instance-teardown reaper re-runs ReleasePublicIP on a stale terminated record;
because the external IPAM round-robins a small pool, the IP had already been
reassigned to a live instance, and both teardown primitives acted on the IP by
value with no ownership check:

- policy.DeleteEIP deleted the dnat_and_snat row by external IP alone,
  discarding the logical IP it receives.
- StaticPoolAllocator.Release freed the pool entry by IP value.

Scope both to the current owner so a stale or duplicated teardown for a
recycled IP is a no-op:

- DeleteEIP looks up the row by external IP and skips the delete (and the ARP
  flush) when its logical IP no longer matches, mirroring AddEIP's idempotency
  lookup. Defeats both external- and logical-IP reuse races.
- Allocator.Release / ExternalIPAM.ReleaseIP take an ownerENIID; the static
  allocator no-ops a release whose ENI differs from the live allocation, and
  treats an already-freed owner-scoped release as idempotent. Teardown and
  rollback callers pass their ENI; user-driven EIP release passes none.

Proven via E2E single TestSGToSGDatapath (run 27515293563): client-vm SSH
black-holed after its NAT was deleted by the dead instance's GC sweep.

* fix(eks): single-flight DeleteCluster teardown per cluster

SDK retries of one DeleteCluster get fanned across nodes by the worker
queue group, so purgeClusterInfra raced the same cluster on multiple
nodes: duplicate ENI/NLB teardown, duplicate TargetGroupNotFound
deregisters, and a real double-release risk on the billable NAT-GW EIP.
Idempotency kept it correct but noisy.

Add a dedicated per-cluster teardown lease (teardownLeaderKey =
reconcilerLeaderKey + "/teardown"), distinct from the reconciler lease
so a delete never contends with the still-live reconciler that holds the
reconciler lease until it observes DELETING and exits. DeleteCluster
acquires it after the NotFound-idempotency check: the loser returns the
cluster as DELETING (AWS-async semantics) without running the teardown;
the winner drives purgeClusterInfra and releases. The DELETING backstop
reaper shares the same lease, so at most one purgeClusterInfra runs per
cluster cluster-wide.

A nil leaderKV (single-node) skips gating, so local behavior is
unchanged.

* fix: env-driven SSH-ready budget for slow baremetal guests

Add SPINIFEX_SSH_READY_TIMEOUT override for the single-node SSH-handshake
probes (default unchanged at 3m). Baremetal boots q35 guests slower (OVMF +
NBD-backed disks) than CI loop devices and intermittently misses the 3m
window; the harness can now widen it to 5m without affecting shared-runner
e2e. Applied at all single-node probe sites; failure messages now report the
actual budget.

* fix: shared external switch to stop per-VPC localnet ARP collision

Per-VPC external switches each attached an untagged localnet port to the same
physical network (br-ext). OVN cannot keep multiple untagged localnets on one
physical network L2-separate, so with two or more concurrent public-IP VPCs ARP
for a public IP landed on the wrong VPC's switch and the owning gateway router's
ARP responder never fired, leaving the public IP unreachable.

Move to a single shared external switch (provider-network pattern): one switch
with one localnet on network_name=external. Each VPC's gateway LRP attaches via
its own router-type switch port; per-VPC NAT isolation is unchanged. AttachIGW
ensures the shared switch idempotently and is migration-safe; DetachIGW removes
only the per-VPC port + LRP and preserves the shared switch. DeleteVPC removes
the per-VPC gateway switch port from the shared switch so it does not dangle.
Reconcile detects attachment via the gateway LRP since the shared switch carries
no vpc_id.

* fix: owner-scope DeleteEIP by ENI port to survive identical pair recycling

A stale or GC-re-emitted vpc.delete-nat for a terminated instance tore down a
live instance's dnat_and_snat rule (and flushed the host ARP) when the public
IP and private IP both recycled, together, to that live instance in the same
VPC. The (external_ip, logical_ip) pair-key matches under identical recycling,
so the existing logical-IP guard fell through.

Stamp the owning ENI port (spinifex:logical_port) on the dnat_and_snat row at
AddEIP, thread the port through handleDeleteNAT -> DetachEIP -> DeleteEIP, and
skip the delete when the row's stamped port differs from the incoming one. The
IPAM release was already owner-scoped; this mirrors that guard at the NAT layer
so any stale delete for a recycled pair is a no-op. Empty port preserves the
prior pair-key behaviour.
2026-06-15 23:27:39 +10:00
Julian Sommer 50b5495d26 chore: more comment cleanup 2026-06-12 12:38:31 +10:00
Josh Siviour 22d316f76e test(reboot): capture OVN chassis-identity churn + ovn-controller claim/connection state on post-reboot failure (#342)
Run 27254808154 showed TestRebootResilience fail with ovn-controller on
the live chassis claiming NO local Port_Bindings post-reboot: ENIs stuck
on a dead chassis UUID, cr-gw chassis empty, NAT external_mac empty —
while NB intent was correct and taps carried the right iface-id. The SB
Chassis _uuid churned across the reboot (old UUID gone, new one created)
while the SB DB persisted, orphaning every claim.

The current artifacts cannot pin WHY the new chassis won't reclaim: the
ovn-controller vlog lives under /var/log/ovn, not journald, so it is
absent from the systemd-journal capture.

Add:
- phase5Snapshot: capture chassis identity PRE-reboot (system-id, SB
  Chassis/Chassis_Private, get-connection) to ovn-pre-chassis.txt as the
  churn baseline.
- dumpOVNClaimState: at post-reboot failure, capture the same chassis
  state POST-reboot plus ovn-controller connection-status/debug, the
  gw/eni Port_Binding claim detail, ovn-central-vs-ovn-controller boot
  ordering, and tails of ovn-controller.log / ovn-northd.log →
  diag-ovn-claim.txt.

Disambiguates chassis-identity churn from an SB/NB startup-ordering race
on the next reboot-suite run. Diagnostic only; no behavior change.
2026-06-10 16:19:34 +10:00
Josh Siviour f8482ad05a test(reboot): heartbeat-path diagnostics on post-reboot health timeout (#337)
* test(reboot): capture heartbeat-path diagnostics on post-reboot health timeout

When post-reboot ALB targets fail to go healthy, the lb-agent's heartbeat to the
gateway times out with 'context deadline exceeded while awaiting headers' — a
symptom that alone cannot distinguish a network-level drop from an app/gateway
stall. Replace the fatal WaitForTargetsHealthy with a non-fatal poll that, on
timeout, tcpdumps br-wan for the heartbeat 5-tuple + ARP for the ALB floating IP
and pulls the lb-agent console + awsgw journal, then fails. Disambiguates the
layer before any fix (mulga-siv-265).

* test(reboot): re-aim heartbeat capture + add OVN dataplane flow-dump

Run 27250238163 proved the post-reboot failure is network-level (all 3 floating
IPs 100% packet-loss from host) but NOT neigh/NAT priming — neigh is primed and
NAT rows are present, only br-int forwarding is dead. The prior capture watched
br-wan for the ALB floating IP, while the real lb-agent heartbeat posts to the
gateway port on the host's advertise interface, so the L4 classifier could never
see the heartbeat and defaulted regardless.

- heartbeat tcpdump now watches the gateway port on `any` (real path) plus a
  secondary br-wan floating-IP capture for north-south; classifier keys off
  gateway-port L4 presence.
- new dumpOVNDataplane captures ovs-vsctl show, ovs-ofctl dump-flows br-int,
  ovn-sbctl chassis + Port_Binding, dnat_and_snat NAT rows, host neigh, and a
  host->floating-IP ping + ofproto/trace, to pin the flow-restore step.
- failure path dumps diag-ovn-flows.txt alongside diag-heartbeat.txt.

Test-only, build-tagged e2e; no production code.
2026-06-10 14:56:34 +10:00
Josh Siviour fd3dc6b680 feat(network): ADR-0006 layer redesign + IPsec/OVN hardening (#255)
* refactor(vpcd): remove macvlan bridge mode

Macvlan was a single-NIC SSH-safe hack that predated veth mode and was
never selected by any active config path. Deletion is Phase 0 item 1 of
the network layer redesign (mulga-siv-125.1).

Removed:
- BridgeModeMacvlan const + setMacvlanMAC + ifaceIsMacvlan probe
- Macvlan MAC alignment block in launchService (only fired on dead path)
- Macvlan branch in detectBridgeMode + matching tests
- Macvlan duplicates of IGW/AddNAT centralized-NAT tests (veth versions
  already cover the same path)
- --macvlan flag + macvlan case branch in setup-ovn.sh

Refactored:
- useCentralizedNAT() now == BridgeModeVeth (was != BridgeModeDirect);
  verifyBridgeMode already rejects empty/unknown at startup
- Three IGW-pool tests now explicitly WithBridgeMode(BridgeModeVeth)
  (previously relied on empty-mode defaulting to centralized)

Kept intentionally:
- Deprecation notes in docs/compute/vpc-networking/README.md
- Legacy macvlan-interface cleanup in reset-dev-env.sh + ansible
  teardown role (migration for operator systems with stale spx-ext-*
  interfaces from pre-veth installs)

* feat(vpcd): resolve external CIDR at startup with bounded retry

Block service start until the WAN bridge has an IPv4 address, with a 30s
retry window. Phase 0 item 2 of the network layer redesign
(mulga-siv-125.1). Guards the boot race where vpcd starts before
systemd-networkd finishes DHCP on br-wan, or before netplan applies a
static config.

Skipped when ExternalMode is empty (overlay-only deployments).

Forward-compatible with ADR-0006: the new resolveExternalCIDR /
externalCIDRFromBridge helpers become the backing implementation of
HostWiring.ExternalCIDR() once the network/host package lands in Phase 1.
Until then the resolved value is only used to fail-start on missing
uplink.

* fix(vpcd): cover external CIDR startup paths

Extract launchService's CIDR-resolve block to ensureExternalCIDRReady
helper so it's unit-testable, and add direct tests for
externalCIDRFromBridge (loopback + unknown-interface) to exercise the
original literal body. Closes the diff-coverage gap on Phase 0 commit
15b564d which left these paths unreachable from unit tests.

* refactor(network/ovn): extract L1 OVN client to network/ovn package

Move OVNClient interface, LiveOVNClient, ACLSpec, ErrNATNotFound and
namedUUID helper from services/vpcd to a new spinifex/network/ovn
package. The mock relocates to spinifex/network/ovn/mock as a
sub-package. Storage fields on the mock become exported so vpcd tests
can continue to seed/inspect state across the new package boundary.

services/vpcd retains thin type-alias and var-alias shims so existing
callers compile unchanged; Phase 2 removes those shims as vpcd is torn
down.

Adds -coverpkg=./spinifex/... to test-cover so cross-package test
exercise of mock methods continues to count toward coverage now that
the mock lives outside vpcd.

First sub-step of Phase 1 of docs/development/feature/spinifex-network-redesign.md
(bead mulga-siv-125.2). Pure refactor; no functional change. All
existing tests pass; preflight green.

* feat(network/topology): TopologyManager interface + vpcd adapter

Add spinifex/network/topology with Manager interface, VPC/Subnet/Port
specs, and OVN object naming helpers covering the L2 stable contract
(§7 of the redesign plan). Phase 1 keeps existing in-tree OVN names
(rtr-, ext-port-, sg_) and notes the §7.3 targets for a later
reconciliation migration.

TopologyHandler in services/vpcd grows EnsureVPC / DeleteVPC /
EnsureSubnet / DeleteSubnet / EnsurePort / DeletePort /
SetPortSecurityGroups methods that mirror the corresponding NATS
handlers' OVN ops with Spec inputs instead of nats.Msg envelopes,
satisfying topology.Manager via a compile-time check. Existing handlers
are unchanged; the duplication is short-lived (Phase 2 collapses them).

Smoke tests in topology_manager_test.go cover the idempotent create
path, delete cascade, and declarative SG membership move. Deliverable:
TopologyManager.EnsureVPC/Subnet/Port callable; all existing tests
green.

Second sub-step of Phase 1 of docs/development/feature/spinifex-network-redesign.md
(bead mulga-siv-125.2).

* feat(network/host): L0 HostWiring interface + physical/veth impls

Phase 1 deliverable for mulga-siv-125.2. Introduces network/host (L0 of
ADR-0006): UplinkMode enum, Wiring interface, and Physical/Veth
implementations with injectable Runner + InterfaceReader for testability.
Not yet wired into daemon/vpcd — Phase 2 replaces daemon.SetupComputeNode
and vpcd's resolveExternalCIDR with calls through this package.

* feat(network/policy): L3 SecurityGroup/NAT/Route managers

Introduce network/policy as the data-plane policy layer (ADR-0006 L3).
Three managers, all backed by network/ovn:

- SecurityGroupManager: clear+add ACL replacement on an existing port
  group; port group lifecycle stays with L2 (topology.Manager).
- NATManager: bound to one NATMode at construction (derived from
  host.UplinkMode). Distributed sets logical_port/external_mac on EIP
  dnat_and_snat rules; centralised leaves them unset. Per-EIP, NAT GW,
  and IGW-default SNAT entrypoints; all deletes idempotent.
- RouteManager: AddStaticRoute is read-then-decide so retries no longer
  duplicate rows (closing the long-standing non-idempotency bug in
  vpcd/topology.go's IGW default-route path).

ACL priority constants and infrastructure ACL builders move from
vpcd/{security,acl}.go into policy/acl.go with their semantics preserved
(default-deny 900/800 logged, DHCP-allow 1050, tenant 1000). No vpcd
wiring changes here — additive only; the reconciler (bead .3.2) and
network/external (bead .3.4) will consume these managers.

bead: mulga-siv-125.3.1

* feat(network/external): L5 IGW/EIP/NATGW managers

Pure additive — new package, no topology.Manager changes, no rewiring of
existing vpcd handlers. IGWManager builds the external switch + localnet +
gateway LRP + default route + chassis HA, with a flows barrier callers can
inject (production: ovn-nbctl --wait=hv sync). EIP/NATGW are thin L5
wrappers over policy.NATManager. GatewayIPAllocator interface lets the
DHCP-backed allocator stay in vpcd until the DHCP-mgr removal bead lands;
LinkLocalAllocator + StaticRangeAllocator ship here.

* feat(network/reconcile): L6 intent-actual reconciler replaces 5-pass startup

Build spinifex/spinifex/network/reconcile/ package per Phase 2.2 of the
network layer redesign. Reads desired state from NATS KV filtered by
vpc.AZ (with legacy empty-AZ matches-all rule), scans actual state from
OVN NB DB, diffs and applies with VPC → Subnet → Port → SG → IGW →
EIP/NATGW topological ordering.

Atomic port-group join via CreateLogicalSwitchPortInGroups closes the
racy gap the legacy scanENIPortMembership pass used to revive 30s later.
A 5-minute drift goroutine (leader-gated via JetStream KV CAS) replaces
the old 30s ReconcileSGsLoop.

Adds AZ field to VPCRecord stamped at create time. Empty AZ on pre-Phase
2.2 records matches every local AZ, so no migration pass is required.

Replaces and removes the 5-pass startup sequence in services/vpcd:
  - Reconcile + ReconcileFromKV
  - ReconcileSGsOnce + ReconcileSGsLoop
  - RetrofitAllExternalLocalnetOptions
  - RetrofitAllGatewayPortNetworks

IGW fresh-create continues to flow through the legacy NATS handler path
(handleIGWAttach) so the dhcpManager wiring stays intact until Phase
2.3; the reconciler only rebinds gateway-chassis on existing IGW
topology.

Closes mulga-siv-125.3.2.

* refactor(network/topology): promote live Manager impl to network/topology

Move the topology.Manager implementation out of services/vpcd/topology_manager.go
into network/topology/manager_live.go as a standalone liveManager constructed
via NewLiveManager(ovn.Client, opts...). Inputs that varied per-handler
(DNS server resolution from the external pool) are now passed as functional
options (WithDNSServer).

TopologyHandler still satisfies topology.Manager but its methods delegate
to a cached liveManager. The shim stays until the rest of mulga-siv-129
routes NATS subscribers through topology.Manager directly.

Also exports SubnetGatewayCIDR + FormatDNSServerList from network/topology
so the reconciler in network/reconcile can share helpers with the live
manager (audit pass to follow per plan §6).

Test cases ported one-for-one from services/vpcd/topology_manager_test.go
to network/topology/manager_live_test.go; the vpcd-side test file is
deleted. New WithDNSServer test asserts the option propagates into
DHCPOptions rows.

Refs mulga-siv-129 (Phase 2.6 vpcd subscriber migration, Slice 1 of N).

* refactor(vpcd): collapse SG subscribers onto network/{topology,policy} managers

Phase 2.6 / mulga-siv-129 slice 2. Rewrites the vpc.create-sg /
vpc.update-sg / vpc.delete-sg NATS subscribers in services/vpcd as
thin wrappers over topology.Manager (port group lifecycle) and
policy.SecurityGroupManager (ACL programming). Deletes the ~1000
lines of duplicated ACL builder and provisioning logic — its
authoritative copy lives in network/policy.

Surface additions:

- ovn.ErrPortGroupNotFound sentinel; mock + live GetPortGroup wrap
  not-found via fmt.Errorf("%w: ...") so callers can use errors.Is.
- topology.Manager grows EnsureSGPortGroup / DeleteSGPortGroup
  (resolves the apply.go TODO from §2.1 of the redesign plan).
  liveManager implements them with GetPortGroup-then-Create /
  GetPortGroup-then-Clear+Delete idempotency.

Behaviour delta: the old provisionSG rolled back the OVN port group
on AddACLs failure ("all-or-nothing"). The new path lets the port
group survive and relies on network/reconcile to retry EnsureSG on
its next sweep. The all-or-nothing fail-fast test cases are dropped;
ACL emission semantics are covered by network/policy/sg_test.go.

* refactor(vpcd): migrate VPC/Subnet/ENI subscribers to topology.Manager

Phase 2.6 / mulga-siv-129 slice 3. Rewrites vpc.create / vpc.delete /
vpc.create-subnet / vpc.delete-subnet / vpc.create-port /
vpc.delete-port / vpc.update-port-sgs NATS subscribers as thin
wrappers (≤30 lines each) over topology.Manager. Subscriber bodies
now: parse event → translate to spec → delegate to manager.

Deletes:

- vpcd.subnetGateway (and helpers_test.go + topology_test.go's
  TestSubnetGateway block); parity coverage lives in
  network/topology.TestSubnetGatewayCIDR.
- vpcd.reconcilePortSGs (the live manager already exposes the same
  diff-then-transact via reconcilePortSGs on the L2 side).
- vpcd.TopologyHandler.dnsServer; lmDNSServer (passed via
  topology.WithDNSServer to the live manager) is the live path.

Behaviour delta: handlers now strict-parse PrivateIpAddress /
MacAddress / CidrBlock at the NATS boundary and reject malformed
payloads instead of degrading to "no DHCP options". The reconciler
guarantees that field validity is upheld upstream of the publish.

* refactor(network/reconcile): drive SG port groups via topology.Manager

applySGs now calls topology.Manager.EnsureSGPortGroup /
DeleteSGPortGroupByName instead of reaching directly into the OVN client.
Reconcile.Config gains a Topology field (required); the production caller
in services/vpcd passes the TopologyHandler shim, the reconcile package
tests construct a fresh topology.NewLiveManager bound to the mock OVN
client.

DeleteSGPortGroupByName is added to the topology.Manager interface for the
reconciler's orphan-removal path, which iterates raw OVN port-group names
without a groupID round-trip. The existing DeleteSGPortGroup(groupID)
delegates to it.

Resolves the TODO at apply.go:137 carried over from slice 2 of
mulga-siv-129.

* feat(network/policy): add FlowsBarrier option to NATManager

NATManager.AddEIP needs to block on `ovn-nbctl --wait=hv sync` after
writing the dnat_and_snat row so the NATS reply only returns once every
chassis has the rewrite flow. The legacy vpc.add-nat handler does this at
the tail of handleAddNAT; the manager has lacked it since slice 2.1.

NewNATManager grows a functional-options tail (Option / WithFlowsBarrier).
Defaults to a no-op for tests; production wiring in services/vpcd passes
waitForFlowsHV. AddEIP now invokes the barrier after AddNAT, logging at
warn level on failure to match the legacy handler's _ = waitForFlowsHV()
swallowing semantics.

Pre-work for slice 4 of mulga-siv-129 — without the barrier the NAT EIP
subscriber migration would lose the post-write flow-install gate.

* refactor(vpcd): migrate NAT GW subscribers to policy.NATManager

handleAddNATGateway / handleDeleteNATGateway now decode the NATS event
and delegate to policy.NATManager.{AddNATGateway,DeleteNATGateway}. The
manager carries identical OVN logic — same snat type, same ExternalIDs
(spinifex:vpc_id + spinifex:nat_gateway_id) — so existing
TestTopologyHandler_AddNATGateway / DeleteNATGateway suites stay green.

Lazy-constructed NATManager added on TopologyHandler (natmOnce). Mode is
derived from the bridge mode (veth → centralized, direct → distributed)
and the FlowsBarrier is bound to waitForFlowsHV for parity with the
legacy EIP path's tail barrier (used by the next slice, vpc.add-nat).

Slice 4 of mulga-siv-129, sub-step b.

* refactor(vpcd): migrate EIP NAT subscribers to policy.NATManager

handleAddNAT / handleDeleteNAT now decode the NATS event and delegate to
policy.NATManager.{AddEIP,DeleteEIP}. The behavioural contract is
preserved end-to-end:

- Idempotency-skip on a matching dnat_and_snat row (same VPC + LogicalIP,
  plus MAC + LogicalPort under distributed NAT) moves into AddEIP so
  duplicate vpc.add-nat publishes never tear down the rule the previous
  invocation just installed (mulga-siv-124).
- Stale-rule cleanup across every router stays in AddEIP.
- Post-write waitForFlowsHV barrier is now driven by the manager via the
  FlowsBarrier option wired in services/vpcd (slice 4a).
- DeleteEIP returns nil on ErrNATNotFound, matching the handler's
  fire-and-forget "already absent = success" semantic.

The vpcd "errors" import drops out with the inline error-comparison.

Slice 4 of mulga-siv-129, sub-step c.

* refactor(vpcd): migrate IGW subscribers to external.IGWManager (partial)

handleIGWAttach now branches at decode time:
- Centralised NAT + DHCP-sourced pool keeps using attachIGWLegacy because
  the gateway-LRP IP comes from vpc.dhcp.acquire, and that DHCP client is
  the vpcd-local manager that bead mulga-siv-125.3.3 will retire.
- All other shapes (distributed NAT, static-range pool, no pool)
  delegate to external.IGWManager.AttachIGW. The manager mirrors every
  step the legacy handler ran — external switch + localnet port +
  gateway LRP + switch-side router peer + default route + chassis HA +
  waitForFlowsHV tail barrier — so observable behaviour is unchanged.

handleIGWDetach drops its inline OVN walk entirely; both paths exit
through external.IGWManager.DetachIGW followed by releaseGatewayLRPLease.
The lease release stays in vpcd because the upstream client lives in
services/vpcd/dhcp; calling it after every detach is safe because the
upstream server expires unknown leases on its own.

Lazy-constructed IGWManager added on TopologyHandler (igwmOnce). Pool,
allocator (StaticRangeAllocator), chassis, NAT mode, NAT manager, route
manager, and FlowsBarrier are all derived from the existing
TopologyHandler state.

The DHCP-coupled legacy branch retains its full inline OVN logic; it
will disappear in slice-after-125.3.3 follow-on. Slice 4 of
mulga-siv-129, sub-step d.

* feat(ec2/instance): honor AssociatePublicIpAddress per-NIC override

RunInstances --network-interfaces "AssociatePublicIpAddress=true|false"
was silently ignored, only subnet.MapPublicIpOnLaunch gated public IP
assignment. AWS contract is per-NIC override wins.

Extend TestPrepareRunInstances_PublicIPAutoAssigned to table-driven
3 cases: subnet true no-override, subnet false override true, subnet
true override false.

* refactor(config): drop upstream-DHCP config surface (static WAN pool only)

Hard-error in LoadConfig on legacy keys: [network] external_dhcp,
[nodes.<n>.vpcd] dhcp_bind_bridge, and [[network.external_pools]]
source = "dhcp". Add pool range validation (must fit inside the
gateway/prefix_len CIDR; per-cluster non-overlap).

Strip ExternalDHCP from config.NetworkConfig + formation.NetworkConfig
+ admin.ConfigSettings, and DhcpBindBridge from config.VPCDConfig +
admin.ConfigSettings + vpcd.Config. vpcd.ExternalPoolConfig.IsDHCP()
short-circuits to false; the field and downstream DHCP branches in
external_ipam / topology.go remain for Slice C to delete together with
dhcp_manager.

cmd/spinifex/cmd/admin.go: drop useExternalDHCP path and the
detectedDhcpBindBridge helper; require --external-pool when
--external-mode=pool; auto-detect default no longer infers source=dhcp.

service.go's wan_bridge legacy-key rejection now advises removing the
key entirely (vpcd auto-detects br-wan), not renaming to
dhcp_bind_bridge.

Two topology_test cases that exercise the DHCP gateway-LRP path are
skipped — Slice C deletes attachIGWLegacy and these tests together.

* refactor(vpcd): delete dhcp_manager + DHCP gateway-LRP path (Slice C)

Removes upstream-DHCP-client gateway-LRP allocation in favor of static
WAN-pool allocation (StaticRangeAllocator). Part of bead mulga-siv-125.3.3.

- delete services/vpcd/dhcp_manager.go + dhcp/ subpackage (~865 lines)
- delete allocateGatewayLRPIPViaDHCP + releaseGatewayLRPLease paths
- drop ExternalPoolConfig.Source + DhcpBindBridge + IsDHCP() fields
- drop ExternalIPAllocation lease fields (Expiry/ServerID/HWAddr) and
  ExternalIPAMRecord.Source
- drop NewExternalIPAM nc *nats.Conn argument; update all 4 call sites
- rename verifyBridgeMode local dhcpBindBridge -> wanBridge; update error
  strings and tests

Slice D (delete attachIGWLegacy + dispatcher) intentionally deferred.

* refactor(vpcd): delete attachIGWLegacy + IsDHCP stub (Slice D)

Closes mulga-siv-129 slice 4d. Part of bead mulga-siv-125.3.3.

handleIGWAttach now unconditionally delegates to external.IGWManager.
attachIGWLegacy (~207 lines, ~5 OVN write steps + chassis scheduling)
deleted along with its dispatcher branch in handleIGWAttach. The
ExternalPoolConfig.IsDHCP() dead stub is gone.

No code paths or NATS subjects regress: the static-pool / distributed
branches were already going through external.IGWManager since Slice 4d
(6719dc3).

* feat(ipam): Purpose field on every IPAM record (Slice B)

Part of bead mulga-siv-125.3.3.

Adds a Purpose enum (handlers/ec2/vpc/purpose.go) tagging every IP
allocation with its semantic role (eni-primary, eni-public, eip,
igw-lrp, natgw-external, …) so multi-VPC clusters can reclaim/audit
by (owner, purpose).

External IPAM (spinifex-external-ipam, v1→v2):
- ExternalIPAllocation.Type → .Purpose; legacy values mapped via
  LegacyExternalTypeToPurpose (gateway→igw-lrp, auto_assign→eni-public,
  elastic_ip→eip). Unknown legacy values warn and become "unknown".
- AllocateIP / AllocateFromPool / allocateFromPool param rename
  allocType→purpose. All call sites pass Purpose* constants.
- migrate/002_external_ipam_purpose.go: idempotent CAS-retry migration
  with v1/v2-union record shape so partial migrations resume cleanly.

Internal IPAM (spinifex-vpc-ipam, v1→v2):
- IPAMRecord.Allocated []string → []IPEntry{IP, Purpose, OwnerID}.
- AllocateIP gains purpose+ownerID args; ReleaseIP unchanged (still
  keyed on IP).
- AllocatedIPs returns []IPEntry.
- eni.go reorders eniId generation before AllocateIP so the owning
  resource ID lands on the new entry.
- migrate/003_ipam_purpose.go: cross-bucket backfill that reads the
  ENI bucket via the new RunKVWithJetStream path. Orphaned IPs
  (no owning ENI) warn and become Purpose=unknown.

Migrate framework:
- KVContext gains an optional JetStream field; new
  Registry.RunKVWithJetStream method threads it through. RunKV
  signature unchanged — all other callers are unaffected.

Tests:
- ipam_test.go: AllocateIP signature updates; AllocatedIPs now asserts
  IP / Purpose / OwnerID on the returned entries.
- external_ipam_test.go: replaces "auto_assign"/"elastic_ip" literals
  with PurposeENIPublic/PurposeEIP and asserts alloc.Purpose.
- migrate/002 + 003 tests: schema-detect, idempotent rerun,
  no-JetStream fallback, empty bucket.

* refactor(daemon): tombstone obsolete spinifex-dhcp-leases KV bucket

The dhcp_manager removed in Phase 2.3 (bead mulga-siv-125.3.3) owned the
spinifex-dhcp-leases KV bucket. The migrate framework only handles
per-bucket schema version bumps, not bucket deletion, so the obsolete
bucket would linger on upgraded clusters.

Add a one-shot tombstone after initJetStream that deletes the bucket if
present. DeleteKVBucketIfExists treats ErrBucketNotFound and
ErrStreamNotFound as success, so the call is idempotent across restarts.

* feat(config): add network.ipsec_enabled cluster flag (default true)

Add IPSecEnabled to NetworkConfig in both the cluster TOML schema and
the formation handshake payload. Default true so AWS-parity intra-AZ
encryption is on by default. Operators can flip false in
[network] for trusted single-rack lab topologies.

Phase 2.5 (bead mulga-siv-125.3.5) consumes the flag from admin init
(strongSwan provisioning), formation server (propagates to joiners),
and daemon startup (ovs-vsctl ipsec_encapsulation toggle).

* feat(admin): IPsec peer cert generator signed by cluster CA

Add GenerateIPSecPeerCert + IPSecCertPaths in spinifex/admin so admin
init (and the future admin add-node path) can issue per-node IKEv2 peer
credentials signed by the existing cluster CA. The cert carries
id-kp-ipsecIKE (RFC 4945) so strongSwan accepts it as an IKEv2 peer
credential when ovs-monitor-ipsec materialises tunnel configs.

Cluster CA is reused directly — no intermediate strongSwan PKI today;
when intermediate CAs land that becomes a separate workstream.

The cert/key pair lives under {configDir}/ipsec/peer.{pem,key}; the
daemon points OVS Open_vSwitch.other_config (certificate, private_key,
ca_cert) at these paths when network.ipsec_enabled is true.

* feat(admin): wire IPsec peer cert into admin init + join paths

Add --ipsec bool flag (default true) on adminInitCmd. Single-node init
and the multi-node leader path both emit an IPsec peer cert after the
existing CA+server-cert generation. The multi-node formation server
propagates the IPSecEnabled flag to joining nodes via NetworkConfig;
admin join honours it and emits its own peer cert during the same
cert-issuance step that already produces the server cert.

spinifex.toml template gains an unconditional [network] block carrying
ipsec_enabled so the value is visible to operators on every install
regardless of whether external networking is configured. The daemon
reads it via cluster config (NetworkConfig.IPSecEnabled).

Bead mulga-siv-125.3.5.

* build: install openvswitch-ipsec for OVN native IPsec

openvswitch-ipsec provides ovs-monitor-ipsec, which reads the
Open_vSwitch.other_config cert/key/CA pointers and materialises
strongSwan configs for every Geneve tunnel managed by ovn-controller.
Pulls in strongswan + strongswan-pki as transitive deps.

Required by bead mulga-siv-125.3.5.

* feat(daemon): enable OVN native IPsec on intra-AZ Geneve at startup

When network.ipsec_enabled is true (default), the daemon points the
local OVS DB other_config at the per-node IPsec peer cert that admin
init / admin join provisioned (configDir/ipsec/peer.{pem,key} + the
cluster CA at configDir/ca.pem), then sets
other_config:ipsec_encapsulation=true.

ovs-monitor-ipsec (shipped by the openvswitch-ipsec package) consumes
those pointers and materialises strongSwan configs for every Geneve
tunnel ovn-controller programs — including OVN-IC inter-AZ tunnels
when federation lands in Phase 3a.

Missing cert files log a warning and leave Geneve plaintext; operators
upgrading an older cluster reissue certs via spx admin to close the
gap.

Bead mulga-siv-125.3.5.

* test(e2e): multinode IPsec wiring + xfrm SAs + ESP capture

TestMultinodeIPSec asserts:
- OVS DB on every node carries certificate/private_key/ca_cert pointers
  and other_config:ipsec_encapsulation=true (what daemon.enableOVNIPSec
  writes).
- ip xfrm state on every node has at least one AEAD SA in AES-GCM mode
  (rfc4106(gcm(aes)) or gcm(aes)) within 90s.
- tcpdump catches ESP (ip proto 50) on the underlay (best-effort —
  logged only; geneve may be idle during the 5s capture window).

Skips cleanly when the cluster was bootstrapped with --ipsec=false
(no ipsec_encapsulation key on first node).

Read-only over SSH; runs in the parallel bucket alongside the other
non-mutating multinode tests.

* fix(igw): write attachment State="attached" for AWS parity

Reconciler intent loader (network/reconcile/intent.go::loadIGWs) filters
IGW records with `State == "attached"`, but AttachInternetGateway was
writing `State = "available"`. The reconciler therefore never picked up
any attached IGW — `intent_igws=0` on every pass — so the OVN external
switch + gateway LRP + WAN bridge wiring built by IGWManager.AttachIGW
never ran for default-VPC IGWs (whose live `vpc.igw-attach` publish at
daemon bootstrap is lost — vpcd subscriber not yet wired).

Net effect on single-node e2e: every SSH probe to 192.168.x public IPs
timed out (TestSSHProbe, TestModifyInstanceAttribute, TestRebootInstance,
TestNATGateway, TestSGToSGDatapath) because SNAT/DNAT rules on the VPC
router had no path to the external network.

Match AWS InternetGatewayAttachment.State semantics:
 - Attach: State="attached"
 - Detach: State="detached"

Detach value is internal — recordToEC2 gates Attachments on VpcId != "",
so the detached State is never surfaced to API consumers.

Bead: mulga-siv-131

* fix(reconcile): call AttachIGW when IGW topology missing

applyIGWs previously deferred to the NATS handler when an intent IGW
had no external switch in OVN. When the vpc.igw-attach event is lost
(bootstrap-time default-VPC IGW published before vpcd subscriber is
ready), deferral never resolves and VM public-IP traffic dies.

Call IGWManager.AttachIGW directly — it is idempotent (short-circuits
when the external switch already exists), so the reconciler converges
default-VPC IGWs on first pass without duplicating work on subsequent
passes.

Closes mulga-siv-132.

* fix(test): align NewExternalIPAM call with 2-arg signature

Rebase onto dev pulled in daemon_system_instance_test.go which used
the legacy 3-arg NewExternalIPAM(jsNC, js, pools). The feature branch
already narrowed the signature to (js, pools) via the upstream-DHCP
config drop; align the test with the current signature.

* fix(vpcd): EnsureSubnet must EnsureVPC first to avoid NATS race

vpc.create-vpc and vpc.create-subnet are independent NATS events with
no inter-event ordering guarantee. Tenant bootstrap on iam.account.created
publishes both within <1ms, so the subnet handler's
CreateLogicalRouterPort can race the parent VPC's CreateLogicalRouter and
fail with "logical router not found". The cascade fails CreateNetworkInterface
which fails RunInstances which surfaces as InsufficientInstanceCapacity to
the SDK — masking the underlying topology race.

handleSubnetCreate now calls EnsureVPC(VPCID-only) before EnsureSubnet.
EnsureVPC short-circuits on existing LR (idempotent), so the race-winning
vpc.create-vpc handler's full CIDR/VNI ExternalIDs are preserved; if subnet
wins the race the LR is created with bare ExternalIDs (cosmetic) and the
follow-on vpc.create-vpc short-circuits.

Adds TestIntegration_SubnetBeforeVPC regression covering both orderings.

Closes mulga-siv-133.

* feat(ansible): require --external-pool, drop NAT, forward EXTRA_VARS

spx admin init now rejects --external-mode=nat and demands --external-pool
when mode=pool. The ansible init role silently skipped pool flags when the
range was unset, so installs fell over inside the spx validator. Make
targets also swallowed `-e` (make's env-override flag), so operators could
not override pool start/end without editing defaults.yml.

- vars/defaults.yml: rename nat_gateway_ip → external_gateway_ip; add
  spinifex_external_no_external opt-out; document the spx flag contract.
- roles/init/tasks/main.yml: drop NAT branch; assert pool range upfront
  with a fail_msg pointing at EXTRA_VARS / defaults.yml; emit gateway,
  prefix-len, gateway-ip only when explicitly set (let spx auto-detect);
  honour --no-external.
- playbooks/dev-reset.yml: rename captured var; coerce legacy
  external_mode=nat to pool with a warn; tighten gateway regex with \b.
- Makefile: ansible-dev-* targets now forward EXTRA_VARS="key=val ..."
  through --extra-vars so `make` callers can override without editing
  defaults.yml.
- scripts/ansible/README.md: document pool requirement, both invocation
  styles (direct -e vs make EXTRA_VARS), NAT removal.

* fix(ipsec): guard ipsec_encapsulation on ovs-monitor-ipsec liveness

enableOVNIPSec set OVS cert pointers + ipsec_encapsulation=true without
ensuring ovs-monitor-ipsec.service was running. Without that daemon, OVS
holds the cert pointers unused, strongSwan never gets IKE config, and
tunnel traffic ovn-controller marks for encryption gets silently
dropped. TestMultinodeIPSec fails on `node1 xfrm has no AEAD SAs`.

- systemd: spinifex-daemon Wants=/After= ovs-monitor-ipsec.service
- daemon: ensureOVSMonitorIPSecActive — systemctl enable --now +
  is-active poll; refuses to flip ipsec_encapsulation if daemon is dead
- daemon: single-node short-circuit — no peers means no tunnels means
  the flag is at best inert and at worst load-bearing-silent-drop
- ci: capture-net-diag.sh + workflow steps to snapshot OVS/OVN/xfrm
  state on failure, fan out across all 3 multinode nodes

Refs: mulga-siv-136

* test(e2e): sticky-skip downstream SSH tests when probe fails

When TestSSHProbe times out (3 min, typically because of mulga-siv-134
datapath bug), four downstream tests each re-probe SSH on the same
broken datapath and time out identically — single-node job runs ~24 min
instead of ~12 min, with the same error logged five times.

First waitForSSHReady timeout now sets a package-level atomic flag;
subsequent waitForSSHReady / trySSHReady / requireSSHHealthy calls skip
immediately. Preserves the original red signal on TestSSHProbe and on
any test that genuinely needed SSH (Skip ≠ Pass). Bool variant
(trySSHReady) consults but does not set the flag — its caller already
treats False as advisory warning, not fatal.

TestSGToSGDatapath has its own EventuallyErr SSH wait (not via
waitForSSHReady) and needs an explicit requireSSHHealthy(t) gate at
the top of runSGToSGDatapath. TestNATGateway already calls
waitForSSHReady first so the gate fires naturally.

Refs: mulga-siv-137

* fix(ipsec): use Debian unit name openvswitch-ipsec.service

CI artifact shows `Unit ovs-monitor-ipsec.service could not be found`
on every node. Debian's openvswitch-ipsec package ships the unit as
openvswitch-ipsec.service (the binary inside is ovs-monitor-ipsec, but
systemd's name follows the package). The previous commit guarded on
the wrong unit name, so:

- spinifex-daemon.service Wants=/After= silently no-op'd (missing unit)
- enableOVNIPSec's `systemctl enable --now ovs-monitor-ipsec.service`
  failed, daemon logged a warning and continued without flipping
  ipsec_encapsulation=true
- TestMultinodeIPSec skipped with `node1 reports ""` because OVS DB
  never received the cert pointers

Rename across all 5 spots (daemon, systemd unit, test, CI diag script,
workflow journal capture) to match the Debian package layout.

Note: the package itself still must be present on the CI VM image —
that's tracked in the mulga repo (image-builder provision.sh +
bootstrap-install.sh shim).

Refs: mulga-siv-136

* fix(e2e): authorize default SG tcp/22 + icmp in single-node fixture

admin init leaves the default SG closed (AWS parity); the Go single suite
never ported the Phase-5 SG-ingress block that run-e2e.sh has had since day
one, so every test runner SSH/ping probe hits the OVN port-group ACL drop.

- ec2helpers: add AuthorizeICMPIngress + EnsureDefaultSGOpen helpers.
- single/main_test: open default SG once per process in pkgFixOnce.Do.
- witness: extend ensureDefaultSGSSHIngress to authorize ICMP too.
- run-e2e.sh: append matching ICMP authorize next to tcp/22 block.

mulga-siv-134

* fix(network/reconcile): key DHCP_Options lookup by subnet_id not CIDR

Multi-tenant default VPCs share the same subnet CIDR (172.31.0.0/20) per
account. The existing FindDHCPOptionsByCIDR gate at apply.go:107 found
the first account's DHCP_Options row and skipped creation for every
subsequent subnet with the same CIDR. Those subnets' ports then attached
nothing (FindDHCPOptionsByExternalID misses on subnet_id), VMs got no
DHCPv4 lease, and SSH/ICMP into them silently failed even though SG
ACLs and NAT were correct.

Switch the gate to FindDHCPOptionsByExternalID keyed on spinifex:subnet_id
so each subnet owns its own row, matching the attach lookup at line 203.

Verified: account 000000000001 default VPC RunInstances now produces an
LSP with dhcpv4_options populated, VM cloud-init reports a 172.31.0.5/20
lease + default route via 172.31.0.1, and ping + ssh TCP handshake to
the EIP succeed end-to-end. Stale DHCP_Options row for the prior dead
subnet was wiped manually; reconciler recreated the correct row for the
live subnet on its next pass.

* fix(ipsec): enable openvswitch-ipsec at provision time, drop daemon write

Provisioning now runs `systemctl enable --now openvswitch-ipsec.service`
alongside openvswitch-switch and ovn-controller. The spinifex-daemon
process drops its `enable --now` shell-out and only polls is-active.

Sudoers gains one read-only line:
  spinifex-daemon ALL=(root) NOPASSWD: /usr/bin/systemctl is-active openvswitch-ipsec.service

This mirrors the existing vpcd ovn-controller is-active precedent and
removes the daemon's need for systemd-write capability. Aligns with
least-privilege service account pattern: provision enables services,
daemon only reads status.

If the unit is inactive at runtime, the daemon refuses to flip
ipsec_encapsulation=true (silent-drop guard from mulga-siv-136) and
surfaces a clear error pointing at scripts/setup-ovn.sh.

* chore: unblock preflight on feat/network-layer-redesign

Two pre-existing failures blocked preflight on the branch:

- govulncheck flagged golang.org/x/net@v0.54.0 (GO-2026-5026, ASCII Punycode
  rejection bug in idna.ToASCII); reached via utils.DownloadFileWithProgress.
  Bump to v0.55.0; go mod tidy carries x/sys to v0.45.0.
- TestTopologyHandler_SubnetCreate_RouterPortFails asserted subnet create
  fails when the parent VPC router is missing. That contract changed in
  aed7b2e (mulga-siv-133), which made handleSubnetCreate call EnsureVPC
  idempotently before EnsureSubnet to avoid a NATS publish-order race.
  Delete the now-impossible failure case.

* refactor(network/ovn): relocate nbdb model package from services/vpcd

Phase 4 / mulga-siv-125.6 Slice A. Pure import rename, no logic change.

The OVN Northbound DB model (LogicalSwitch, LogicalRouter, DHCPOptions,
etc.) lived under services/vpcd/nbdb/ because that was the original home
of every OVN caller. After Phase 1+2 the L1 client (network/ovn) and all
L3/L5 managers (network/policy, network/external, network/topology,
network/reconcile) became the primary callers — 8 importers in network/*
vs 2 in services/vpcd/. The directory move puts the schema model where
its consumers are, and unblocks deleting services/vpcd/ entirely once
the subscriber/launcher relocations land (Slices B–D).

* refactor(vpcd): delete dead retrofit/reconcileIGW helpers + bridge-mode bleed

Phase 4 / mulga-siv-125.6 Slice B.

Production path no longer touches any of:

- RetrofitAllGatewayPortNetworks / RetrofitAllExternalLocalnetOptions —
  the 5-pass startup leftovers that network/reconcile (Phase 2.2) made
  redundant. Nothing called them outside tests.
- reconcileIGW + its allocateGatewayLRPIP / gwLrpRange helpers + the
  ipv4ToUint32 / uint32ToIPv4 utilities — superseded by
  external.IGWManager (Phase 2.4) which carries its own pool logic.
- ensureLocalnetOptions / ensureGatewayPortNetworks /
  expectedGatewayPortNetwork — read-before-write retrofit shims for the
  same code paths.
- generateMAC — only callers were reconcileIGW + its tests.

useCentralizedNAT (the bridge-mode bleed flagged in plan §2.2) is
replaced by a policy.NATMode value injected via WithNATMode(...). The
mode is resolved once in vpcd.go from host.UplinkMode and threaded into
both the topology-handler lazy managers and the reconciler stack, so
"is this veth?" is no longer a question topology.go can ask. The
TopologyHandler defaults to NATModeDistributed when WithNATMode is
omitted, matching the previous default.

Drops services/vpcd/topology.go from 1220 LOC to 693, deletes ~700 LOC
of obsolete tests (TestGenerateMAC, TestEnsureLocalnetOptions_*,
TestRetrofitAllExternalLocalnetOptions_FixesClearedOptions,
TestReconcileIGW_*, TestGwLrpRange), and frees the nbdb + utils +
net imports in topology.go.

Stale "phase 4 migrates those onto the new managers" comment in vpcd.go
fixed in passing — the subscribers were migrated in Phase 2.6
(mulga-siv-129); only the file-relocation parts of Phase 4 remain.
Stale ensureLocalnetOptions / ensureGatewayPortNetworks references in
network/ovn/{live.go,mock/mock.go} doc comments also cleaned up.

* refactor(network): move NATS VPC subscribers to network/subscribers

Phase 4 Slice C (mulga-siv-125.6). Promotes the NATS event handlers out of
services/vpcd into a new spinifex/network/subscribers package. Subscriber
holds the topology/policy/external managers directly — the lazy *Once
adapter shim (topology_manager.go) is deleted along with vpcd's local
event-struct copies.

launchService now constructs topology.LiveManager eagerly with a DNS
callback derived from external pools (preserving the unscoped-pool lookup
old TopologyHandler.lmDNSServer did), builds every manager up front, then
hands them to subscribers.New + Subscribe. reconcile.New receives
topology.Manager directly instead of through the adapter.

Bridge-mode constants and waitForFlowsHV move into vpcd.go alongside the
launcher; they were left behind as topology.go's last responsibilities.

Handler-layer tests (topology_test.go, security_test.go, integration_test.go)
are dropped: substance is covered by network/topology, network/policy,
network/external manager tests. subscribers/subscribers_test.go adds
focused coverage: missing-dep rejection, topic registration smoke, and
bad-JSON envelope per topic.

services/vpcd is now down to the launcher + the ovn/mock compat aliases
(removed in Slice D when the launcher promotes to cmd/vpcd/).

* refactor(vpcd): relocate services/vpcd → spinifex/vpcd; drop dead aliases

Phase 4 Slice D (mulga-siv-125.6). Final cleanup of the network-redesign
package layout. services/vpcd/ disappears entirely; the launcher remains
an in-process Service impl, just rehomed under spinifex/vpcd/ (no separate
binary — spx vpcd start stays the cobra entrypoint).

- Delete services/vpcd/mock_ovn.go + ovn.go (compat aliases now dead post
  Slice C; only callsite was launchService's NewLiveOVNClient, inlined to
  ovn.NewLiveClient).
- git-rename services/vpcd/vpcd.go + vpcd_test.go to spinifex/vpcd/.
- Retarget three importers (spinifex/service/service.go +
  service_test.go, cmd/spinifex/cmd/service.go) to the new path.
- Fix stale services/vpcd / TopologyHandler comments in network/reconcile/
  + network/external/types.go + spinifex/vpcd/vpcd.go.
- service-interfaces.yaml vpcd path updated.
- Plan doc §13/§14/§16 + §9.2/§19 updated: drop cmd/vpcd/main.go (was
  speculative; never built) in favour of in-process Service impl at
  spinifex/vpcd/vpcd.go. Plan §16 Created list now lists subscribers/.

Phase 4 plan items 1+2 (remove services/vpcd, entrypoint location)
satisfied. Items 3+4 remain blocked on mulga-siv-125.4 + 125.5 (bundled
join token, plan archive).

* fix(ovn): install openvswitch-ipsec + strongswan explicitly

ovs-monitor-ipsec.service fails to start without an IKE daemon. The
openvswitch-ipsec package only Recommends strongswan, so any apt
config that drops Recommends (or a base image with the recommends
already skipped) leaves the service in a Restart loop with 'IKE
daemon is not installed'. Hoist both packages into setup-ovn.sh so
provisioning is the single source of truth — the bootstrap shim in
mulga is no longer needed.

* test(network): pin ADR-0006 invariants to executable suite

Add static-analysis + behavioural tests that bind every safety and
liveness clause in ADR-0006 (S1-S9, L1-L3) to a named Go test. Failure
output quotes the ADR clause verbatim and points at the offending
file:line so future debugging sessions can't quietly bypass a layer
contract to make a test green.

Static-analysis suite (spinifex/network/invariants/):
- S1 layers_test.go: parses `go list -json`; rejects upward layer
  imports and layers pulling from cross-cutter packages
- S2 host_containment_test.go: AST-detects ovs-vsctl / ovn-nbctl /
  ovs-ofctl shell-out outside network/host/
- S3 nat_mode_test.go: rejects .UplinkMode() / NATModeFromUplinkMode()
  calls outside the init-time resolver locations
- S4 names_test.go: AST-detects OVN object name construction (concat,
  fmt.Sprintf, strings.Join) outside topology/names.go
- S5 policy_no_create_test.go: rejects CreateLogical{Switch,Router,...}
  and DeleteLogical{...} calls inside network/policy/
- S6 federation_isolation_test.go: rejects TransitSwitch /
  TransitRouterPort references and ovn-ic literals outside
  network/federation/ (pre-protects the layer before it lands)
- S8 ipsec_test.go: rejects strongswan / xfrm / IKEv2 / libreswan /
  openswan imports anywhere in network/
- S9 reconciler_singleton_test.go: rejects Reconcile…Loop and
  Reconcile…Pass<n> function names anywhere in network/
- S7 nats_subjects_test.go: scans for `vpc.<verb>` subjects missing
  the {azID} segment; calls t.Skip with the gap report so every test
  run prints the work-to-do without breaking CI. Flip to t.Fatalf
  when the cluster-wide subject rename ships.

Behavioural suite (spinifex/network/reconcile/liveness_test.go):
- L1 reconciler converges: scaled-intent (N=1,3,8) double-Reconcile
  property test; asserts second pass is a no-op
- L2 drift bound: structural check that DriftInterval is positive and
  ≤30 min support window; full fake-clock behavioural test deferred
- L3 federation re-enables: t.Skip stub pointing at the missing
  network/federation/ package

Fixes the one production S4 violation the new walker found:
network/external/igw.go was constructing "gw-port-"+vpcID inline.
Adds topology.GatewaySwitchPort(vpcID) helper and retargets both
AttachIGW and DetachIGW callsites through L2.

Plan + per-clause mechanic + phasing in
docs/development/improvements/network-invariants.md.

Refs: mulga-siv-140

* fix(ovn): install strongswan-charon (not strongswan metapackage)

The strongswan metapackage's '\''charon-systemd | strongswan-charon'\''
alternative resolves to charon-systemd by default, which ships
/usr/sbin/charon-systemd but not the legacy /usr/sbin/ipsec helper or
/usr/lib/ipsec/charon binary that ovs-monitor-ipsec --ike-daemon=strongswan
shells out to. Install strongswan-charon explicitly to pull
strongswan-starter (legacy ipsec controller) + the matching charon binary,
matching what openvswitch-ipsec.service expects.

Also reset-failed + restart openvswitch-ipsec.service after enable to
recover from the deb post-install starting the service before its
dependencies finished unpacking.

* chore: add CODEOWNERS — joshsiv-mulga gates network/ + vpcd/

Fall-through reviewer for any change is the maintainer.
network/ and vpcd/ are explicitly listed so the matching branch
protection rule ("Require review from Code Owners") routes those
PRs to joshsiv-mulga. Those trees are governed by ADR-0006
invariant tests (spinifex/network/invariants/); CODEOWNERS adds a
human review gate on top of the mechanical fence.

Refs: mulga-siv-141

* chore: CODEOWNERS fallthrough → @mulgadc/mulgadc-engineers team

Fallthrough reviewer should be the team, not a single maintainer, so
any engineer can approve PRs outside the explicitly-gated paths.
network/ and vpcd/ keep joshsiv-mulga as the required reviewer per
ADR-0006 invariant ownership.

Refs: mulga-siv-141

* feat(ci): add test_run workflow input for -test.run filter

Pass an optional regex through to each suite's '\''go test -test.run'\'' so
dispatches can target a single test (e.g. '\''^TestMultinodeIPSec$'\'') without
running the full multinode suite. Threaded through single, multinode, and
reboot suite invocations; empty input preserves current behaviour.

* fix(daemon): flip NB_Global.ipsec=true on management node

Setting Open_vSwitch.other_config:ipsec_encapsulation=true on each
chassis is necessary but not sufficient for OVN native IPsec — without
NB_Global.ipsec=true, ovn-controller never adds options:remote_name to
the Geneve tunnel ports, so ovs-monitor-ipsec sees no IPsec-enabled
tunnels and the kernel xfrm tables stay empty. After enabling
ipsec_encapsulation locally, also write NB_Global.ipsec=true when the
local ovnnb_db socket is present (management node only); workers skip
silently — one writer is enough for a cluster-wide flag.

Adds a scoped sudoers entry pinning the daemon to that exact ovn-nbctl
invocation so the grant can't be reused for other NB mutations.

* fix(ovn): grant charon AppArmor read on /etc/spinifex/ipsec

The strongswan-charon profile only allows reads from /etc/ipsec.*,
/etc/strongswan.*, and a small fixed allowlist. ovs-monitor-ipsec writes
the per-tunnel strongSwan config with absolute paths to our peer cert +
key under /etc/spinifex/ipsec/, so charon hits 'Permission denied'
loading them (it runs as uid 0 but AppArmor still blocks) and no xfrm
SAs come up. Drop a read grant for /etc/spinifex/ipsec/** into the
profile's local override hook + reload.

* fix(ovn): pin OVS system-id to hostname for IPsec cert identity match

ovs-monitor-ipsec uses chassis-id as the IKEv2 `@<name>` peer identity in
the strongSwan config it generates. Our per-node IPsec peer cert
(admin.GenerateIPSecPeerCert) carries the node name as CN + dnsName SAN.
With chassis-id left at the package-generated UUID, charon validates
`@<UUID>` against a cert with dnsName=<hostname> — mismatch returns
AUTHENTICATION_FAILED and no xfrm SAs are negotiated.

Pin system-id to hostname (which equals the node name on Mulga clusters)
by writing both the on-disk source of truth (/etc/openvswitch/system-id.conf,
read by ovs-ctl on boot) and the running OVS DB value. Writing only one
would drift on the next reboot — the original "do not override" comment
was right about that hazard, just wrong about the resolution.

Cross-link the invariant in admin/ipsec.go: changing the cert identity
without updating setup-ovn.sh (or vice versa) breaks IKE silently.

Refs: mulga-siv-136

* fix(ovn): take --node-name flag so chassis-id matches cluster identity

CI hostnames are bead-themed (env20-casuarina) and don't match the
cluster node name (node1/node2) baked into the IPsec peer cert dnsName
SAN at `spx admin init/join --node NAME`. Pinning system-id to
`hostname -s` produced env20-casuarina; charon then validated
`@node1` against dnsName=env20-casuarina and IKE failed with
AUTHENTICATION_FAILED.

Add a --node-name=NAME flag to setup-ovn.sh, default to hostname for
manual/dev invocations, and update the ansible install role to pass
{{ spinifex_node_name }}. The matching bootstrap-install.sh change
lives in mulga.

Refs: mulga-siv-136

* refactor(daemon): relocate L0 helpers to network/host + widen ADR-0006 S2

Phase 4 Slice E of mulga-siv-125.6. Cleans up spinifex/daemon/network.go
per the audit and widens the S2 invariant to forbid OVS/OVN shell-outs
in spinifex/daemon/ (daemon is an L0 consumer; S2 applies).

Moved to network/host/:
- OVSNetworkPlumber + SetupTap/CleanupTap → host.OVSPlumber (host.NewOVSPlumber)
- GetBridgeIPv4 → host.GetBridgeIPv4
- OVNHealthStatus + CheckOVNHealth → host.OVNHealth + host.HealthStatus
- daemon/ipsec.go OVS/OVN ops → host.SetIPSecCertPaths, host.EnableIPSecEncapsulation, host.SetNBGlobalIPSec

Moved to utils:
- sudoCommand → utils.SudoCommand + utils.SetSudoCommandForTest test seam
  (cross-package reassign would trip the reassign linter; helper keeps
  the indirection inside utils).

Moved to vm:
- generateMgmtMAC → vm.GenerateMgmtMAC (pairs with vm.GenerateDevMAC)

Deleted (dead):
- SetupComputeNode (replaced by network/host/bridges.go:ensureBridges +
  scripts/setup-ovn.sh:572-579)
- EnsureDataRoute
- findInterfaceByIP
- daemon/network.go + dead tests in daemon/network_test.go (duplicates of
  vm package tests retained; mgmt MAC test moved to vm/lifecycle_test.go)

S2 invariant (network/invariants/host_containment_test.go) now walks
both spinifex/network/ and spinifex/daemon/, skipping network/host/.

* fix(ovn): broaden AppArmor read grant to /etc/spinifex (covers CA cert)

The earlier override granted reads on /etc/spinifex/ipsec/** only, which
covers the peer cert + key but NOT the cluster CA at /etc/spinifex/ca.pem.
charon then can't load the CA, can't validate the peer cert chain, and
surfaces the failure as `no trusted RSA public key found for '<peer>'`
even though identity matching now succeeds — IKE_AUTH fails with
AUTHENTICATION_FAILED and no xfrm SAs negotiate.

Grant /etc/spinifex/** instead (covers ca.pem + ipsec/peer.{pem,key})
and always rewrite the override so re-runs replace the older narrower
rule.

Refs: mulga-siv-136

* fix(ipsec): symlink cluster CA into charon's default cacerts dir

ovs-monitor-ipsec writes per-conn `cacert=/etc/spinifex/ca.pem` references
in the strongSwan config, but strongSwan 6.0 only loads CAs declared in
standalone `ca` sections or files placed in /etc/ipsec.d/cacerts at
startup. Without this, charon authenticates the local side fine but
rejects every inbound peer cert as `no trusted RSA public key found for
'<peer>'`, AUTH_FAILED, and no xfrm SAs negotiate.

Do the symlink in admin.GenerateIPSecPeerCert (right after writing the
peer cert) — setup-ovn.sh runs before `spx admin init/join` creates
/etc/spinifex/ca.pem, so the wiring can't live there. Use a stage-and-
rename pattern so concurrent test invocations don't race on the symlink.

/etc/ipsec.d/cacerts is on charon's default AppArmor allowlist so no
profile change needed.

Refs: mulga-siv-136

* chore(setup-ovn): drop apt-get install_packages block

OVS/OVN/openvswitch-ipsec/strongswan-charon are baked into the CI gold
image via mulga's image-builder/scripts/provision.sh (commits 116bb05,
a9b3a9c). Keeping a runtime apt-get install path here pulled CI through
apt-cacher-ng on every bootstrap and tripped on intermittent "Message
has been manipulated" InRelease cache corruption (env21/env20 runs).

Drop the install block. Gold-image rebuild is the canonical place to
add new system packages. If a package is missing, downstream ovs/ovn
commands fail loudly during setup-ovn.sh's later steps — clearer signal
than silently re-installing through a flaky proxy.

setup.sh already supports INSTALL_SPINIFEX_SKIP_APT=1 (passed by mulga's
bootstrap-install.sh:237) so this removes the last runtime apt-get call
on the CI provisioning path.

* fix(ovn): gate system-id pin on explicit --node-name

setup-ovn.sh used to fall back to `hostname -s` when --node-name wasn't
passed, and then unconditionally wrote that value to
/etc/openvswitch/system-id.conf + ovs-vsctl external_ids:system-id.

On CI single-node, the gold image already registered a chassis with
name=<UUID>; setup-ovn.sh then rewrote system-id to the bead-themed
hostname (env10-banksia). vpcd's discoverChassis treats any chassis row
whose name != local system-id but hostname == local hostname as a stale
local chassis and skips it, so vpcd reported "no OVN chassis registered
in SBDB" and refused to start, cascading into the e2e + e2e-go failures
on run 26430839508.

Drop the hostname fallback. If --node-name is given, pin both the
on-disk file and the running OVS DB to it (callers that care about
IPsec cert identity matching still get it). If no --node-name is given,
leave the existing system-id alone — that's always safe whether the
value came from a gold-image UUID, bootstrap-install.sh writing nodeN
before this script runs, or a manual ansible value.

* fix(network/reconcile): skip orphan prune on startup; drift owns GC

The vpcd startup reconcile races against the daemon's EnsureDefaultVPC:
the daemon writes SG KV rows + publishes vpc.create-sg on each node in
parallel with vpcd starting up. The leader-gated reconcile can load
intent before any SG row is visible on its local JetStream replica
while subscribers on peer nodes are concurrently creating port groups
from the same vpc.create-sg events. A startup orphan-port-group sweep
then deletes managed sg_* port groups that intent hasn't caught up to.

CI run 26434124790 trace:
  node2 reconcile/lock: elected holder=env20-bottlebrush
  node2 reconcile: starting intent_sgs=0
  node2 reconcile/apply: removed orphan port group pg=sg_161c70ce23e704a2a
  node2 reconcile/apply: removed orphan port group pg=sg_a0d078650a3150391
  node2 reconcile/apply: removed orphan port group pg=sg_54b564b374e9162bb

Every subsequent RunInstances → vpc.create-port failed with
"port group not found" for ~3 minutes until the 5-minute drift tick
recreated the port groups. Tests give up after 60s; six multinode
suites cascade-fail on InsufficientInstanceCapacity.

Split the reconciler into Reconcile (full prune, drift loop) and
ReconcileApplyOnly (no prune, startup). applySGs takes a pruneOrphans
bool. vpcd startup calls ReconcileApplyOnly; drift loop unchanged.
Legitimate orphans get garbage-collected on the next drift tick — at
worst 5 minutes of lingering rows, no production impact.

Add TestReconcile_ApplyOnlyKeepsOrphanPortGroup to lock the contract.

* fix(ipsec): trigger charon rereadcacerts after CA symlink install

strongSwan scans /etc/ipsec.d/cacerts only at charon startup. The unit
openvswitch-ipsec.service is enabled at provision time and starts before
admin init writes the cluster CA symlink, so charon ends up running with
zero CAs loaded. Every IKE_AUTH then fails with `no trusted RSA public
key found for '<peer>'` and no SAs negotiate — the failure mode exposed
by TestMultinodeIPSec.

Append a stroke rereadcacerts call at the end of
installCAIntoCharonTrustStore so an already-running charon picks up the
freshly-placed CA without a service restart. Failure is swallowed at
debug — a missing/stopped charon at admin-init time is expected and a
later startup will scan cacerts naturally.

* refactor(network/host): move IPSec orchestrator from daemon (ADR-0006 S8)

ADR-0006 S8: "IPSec is OVN-native only. No layer implements custom IKEv2,
XFRM rules, or direct strongSwan management. IPSec SA lifecycle is delegated
entirely to OVN native IPSec and is invisible above L0."

The enableOVNIPSec orchestrator and its ensureOVSMonitorIPSecActive helper
lived in daemon/ipsec.go but composed L0 primitives (SetIPSecCertPaths,
EnableIPSecEncapsulation, SetNBGlobalIPSec) that already lived in
network/host. The orchestrator now lives alongside its callees as
host.EnableOVNIPSec, taking configPath and clusterConfig from the daemon at
the call site. Helper and test-override package vars (systemctlActiveTimeout,
ovnNBSocketPath) move with it; tests are translated to call EnableOVNIPSec
directly rather than via the Daemon struct.

Closes mulga-siv-142

* refactor(daemon): use topology.Port for OVN port names (ADR-0006 S4)

ADR-0006 S4 forbids any layer above L2 from constructing OVN object
names. Three daemon sites formatted "port-" + ENIId inline; route them
through topology.Port instead.

Closes mulga-siv-143

* refactor: use topology.Port for OVN port names in handlers + vm (ADR-0006 S4)

Replace inline "port-"+eniID formatting across five sites (eip, instance x2,
vpc/eni, vm/network_helpers) with topology.Port. OVSIfaceID stays as a thin
wrapper to preserve the OVN binding contract comment and existing call sites.

Closes mulga-siv-144

* test(network/invariants): widen scan roots to daemon/handlers/vm/testutil/utils (ADR-0006)

Widen ADR-0006 invariant scan roots so drift in upstack consumers surfaces
in CI. Backlog of violations in widened roots was drained by
mulga-siv-142/-143/-144; this commit makes the wider scan permanent.

  - S2 (host_containment): add vm/ alongside network/ + daemon/
  - S3 (nat_mode):         add daemon/ alongside network/ + vpcd/
  - S4 (names):            add daemon/, handlers/, vm/ alongside
                           network/ + vpcd/; add narrow AWS-ID exemption
                           (vpc-cidr-assoc-) so AWS resource IDs are not
                           misclassified as OVN object names
  - S6 (federation):       add daemon/, handlers/ alongside network/;
                           convert single-root walk to slice
  - S7 (nats_subjects):    add daemon/, handlers/, testutil/, utils/ —
                           stays t.Skip pending cluster-wide subject
                           rename; gap report now lists 58 subjects

CODEOWNERS: add /spinifex/network/invariants/ rule so widening or
narrowing the scan needs explicit owner review.

Closes mulga-siv-145
Refs: audit-adr-0006.md

* chore(e2e): disable IPsec in pseudo multi-node test

Pseudo multi-node runs three simulated nodes as unprivileged tf-user.
The charon trust-store install in 904b45e writes /etc/ipsec.d/cacerts,
which fails with EACCES under a non-root caller and aborts admin init.

Disable --ipsec for this suite — loopback-only nodes don't exercise
real Geneve encryption anyway. Real-multi-node + single-node e2e
(both run admin init via sudo) continue to cover the IPsec path.

* fix(ovn): atomic Ensure* primitives prevent duplicate logical entities

OVN NB has no unique constraint on Name. The previous
GetLogicalRouter→CreateLogicalRouter sequence in EnsureVPC was a TOCTOU
race: when vpc.create on one node and the defensive vpc.create-subnet
EnsureVPC call on another both observed absence, both inserted, yielding
two routers per VPC. The orphan held DNAT references blocking EIP
detach, and DNAT/flow installation landing on the orphan caused
TestMultinodeGuestSSH SSH timeouts.

Add EnsureLogicalRouter / EnsureLogicalSwitch / EnsurePortGroup to the
libovsdb client. Each builds a single OVSDB transaction combining a
wait-op (Until=equal, Rows=[]) gated on absence of a Name match with the
insert. The server serialises the wait+insert atomically; concurrent
callers see exactly one survivor and the rest fall through to a re-fetch
that returns the canonical row.

Switch all production callers (topology.EnsureVPC / EnsureSubnet /
EnsureSGPortGroup, external.AttachIGW, reconcile.applyVPCs /
applySubnets) to the Ensure* variants. Bare Create* remains available to
the L1 wrapper.

Add invariant test TestS4_OVNNamedCreatesUseEnsure (AST walk) to block
future reintroduction of the bare Create* call sites outside
network/ovn.

Mock implements Ensure* under its existing mutex so the concurrency
tests (50/30/30 goroutines for Router/Switch/PortGroup) prove a single
UUID survives.

Refs: mulga-siv-146

* fix(ovn): wait-op rows must be non-empty; flip to NotEqual predicate

The Ensure* primitives sent a wait-op with `Rows: []ovsdb.Row{}` plus
`Until: ==` (RFC 7047 §5.2.6 absence test). The libovsdb Operation
struct tags Rows as `json:"rows,omitempty"`, so the empty slice was
dropped on the wire and ovsdb-server rejected every transaction with
"Required 'rows' member is missing", breaking reconciler bootstrap and
every downstream create-port lookup ("logical switch X not found").

Flip the predicate to the equivalent `Until: !=` formulation with a
single-row projection containing the Name we want absent:

  no row    → projection []           != [{name}] → predicate holds
  row exists → projection [{name}]    == [{name}] → predicate fails

Same atomic guarantee, JSON now well-formed. Mock tests can't catch
this — only a real ovsdb-server validates the envelope.

* chore: remove generateMAC wrapper

* chore: remove all bead / plan references

* fix(network/policy): wait for chassis flows after AddNATGateway

AddEIP fires m.barrier() to block until ovn-northd compiles NB→SB and every
chassis installs the new dnat_and_snat flows; AddNATGateway returned right
after the NB commit. So `aws ec2 create-route … --nat-gateway-id` would
publish vpc.add-nat-gateway, the SNAT row would land in NB, and the API
call would succeed before the gateway chassis had programmed the SNAT flow
for the private subnet.

Phase 8d's 10×5s=50s ping budget races that flow-install latency on slow
CI hosts (last seen run 26455602615 single-node, identical flake on
unmodified dev run 26434711010 — pre-existing, not introduced by Ensure*).

Mirror AddEIP: call m.barrier() after AddNAT returns. Add unit test
TestNATManager_AddNATGateway_FlowsBarrier_Fires covering the new path.

* chore: remove more plan refs

* chore: remove GenerateIPSecPeerCertIfEnabled

* chore: remove dupliate subnetGatewayCIDR function

* chore(network): trim superfluous comments across network/ tree

Collapse multi-paragraph godocs to 1-2 sentences, drop WHAT-restatement
comments, remove section dividers grouping <10 items, and cut prose
narration in tests. ADR clause references, one-line WHY comments for
non-obvious OVN/OVSDB/AWS/NATS semantics, and exported-symbol godoc are
preserved. No behavioural changes.

Packages: invariants, topology, host, external, ovn, reconcile, policy,
subscribers.

* fix(igw): restore attachment State="available" for AWS parity

AWS InternetGatewayAttachment.State is "available" when an IGW is
attached to a VPC, per the AWS SDK doc ("the state is available when
attached to a VPC; otherwise, this value is not returned"). Commit
b7505f8 wrote "attached"/"detached" to align with the reconciler
filter, which inverted AWS parity.

Fix the producer to write "available" again and update the consumer:
 - handlers/ec2/igw: AttachInternetGateway and DetachInternetGateway
   both persist State="available"; IGWRecord comment narrowed.
 - network/reconcile/intent.loadIGWs: filter accepts "available" (was
   "attached"); attachment is identified by VpcId != "".
 - tests updated: igw service_impl_test, routetable service_impl_test
   fixture, reconcile intent_test fixture.

* Update spinifex.toml

* refactor(subscribers): route EIP/NATGW through L5 wrappers (ADR-0006 §S1)

Subscriber previously called policy.NATManager directly for EIP and NAT
Gateway operations, bypassing the L5 wrappers (EIPManager, NATGWManager)
that existed on paper. ADR-0006 §S1 requires every cross-layer call to
pass through the immediate lower neighbor's typed interface; IGW already
followed this pattern.

Wire EIPManager and NATGWManager into the Subscriber struct, construct
them in vpcd alongside IGWManager, and swap the four direct-L3 call
sites (AddEIP, DeleteEIP, AddNATGateway, DeleteNATGateway) onto the
L5 surface (AttachEIP, DetachEIP, AttachNATGateway, DetachNATGateway).
AttachEIP now fires the flows-barrier, giving callers the same
"reachable on return" guarantee IGW already had.

The reconciler still calls policy.NATManager directly; that's a
cross-cutter and a separate concern.

* test(reboot): port 8MB WAL pad workaround from bash run-reboot-e2e.sh

App VMs' user-data writes (unit file + index.html) sit in the on-host
WAL until WriteWALToChunk crosses the 4MB threshold. Host reboot before
that loses them — systemd then refuses to load the zero-byte unit and
the responder never starts. Mirror the bash driver's dd+sync pad so the
WAL flushes pre-reboot. Drop when the upstream WAL fix lands.

* test(e2e): dump OVN/OVS/SG state on Phase 8d NATGW failure

Phase 8d's existing failure path only prints lr-nat-list and
lr-route-list. CI artifacts are not uploaded when run-e2e.sh exits
nonzero, so debugging the NATGW regression requires inline diagnostics
in the journal. Expand the dump to include nb/sb show, chassis bindings,
port_group ACLs, br-int flows filtered to the NATGW IP/private subnet,
host routes, and the private VM's own ip/route/neigh state.

* fix(ovn,reconcile): scope NAT deletes to router; NATGW snat per associated subnet

Two compounding bugs caused Phase 8d NATGW E2E flake (~60% CI failure):

1. ovn.DeleteNAT/DeleteNATByExternalIP searched all NAT rows globally and
   only mutated the named router afterwards. With AWS subnet CIDRs repeating
   across VPCs, (type, logicalIP/externalIP) is not globally unique — the
   delete picked a NAT row owned by a different router, the mutate was a
   no-op, and the row delete failed with "remaining reference(s)", leaving
   the original router's NAT orphaned. Both calls now resolve the LR first
   and filter NAT lookups to lr.NAT UUIDs. Mock client mirrors the scoping.

2. reconcile.loadNATGWs used the NATGW's home (public) subnet CIDR as
   SubnetCIDR, producing an snat for the wrong CIDR that collided with the
   correct event-published snat. loadNATGWs now walks route tables and
   emits one NATGWSpec per (NATGW, associated private subnet) pair,
   mirroring publishNatGatewayEventsForAssociation. Intent map keyed by
   natgwID|subnetCIDR so multi-subnet NATGWs produce distinct specs.

Tests:
- nat_test.go: cross-router same-logicalIP isolation for DeleteEIP and
  DeleteNATGateway
- intent_test.go: NATGW snat uses associated private subnet CIDR, not the
  NATGW home subnet; NATGW with no associations produces no spec

---------

Co-authored-by: Julian Sommer <115516918+juliansommer@users.noreply.github.com>
2026-05-27 21:05:01 +10:00
Josh Siviour 050ac8f861 feat(e2e): Go E2E harness + single-node migration to Ensure*/Discover* + reboot suite (#241)
* feat(e2e): add Go test harness + cert scenario, port run-cert-e2e.sh

Lands step 1 of docs/development/improvements/e2e-go-harness.md:
shared harness primitives (env, wait, artifacts, cert, tls) plus the
TestCertIssuance scenario that supersedes run-cert-e2e.sh. All files
gated by //go:build e2e so default builds and `make preflight` are
unaffected. Bash script stays in place for one CI cycle before deletion.

* feat(e2e): port run-lb-e2e.sh to TestLoadBalancer Go scenario

Step 3 of docs/development/improvements/e2e-go-harness.md. Replaces 1246
lines of bash with a typed Go scenario exercising all 4 LB variants
(ALB/NLB × internet-facing/internal) against a shared VPC + app instance
pool. Internet-facing phase auto-skips when no peer node is configured;
internal phase always runs.

Adds shared harness primitives:
- harness/aws.go: AWS SDK client factory wired to Spinifex AWS gateway
- harness/lb.go: WaitForLBActive, WaitForTargetsHealthy, WaitForENICleanup,
  WaitForInstanceRunning/Terminated, InstanceENI
- harness/traffic.go: HTTPRoundRobin, TCPRoundRobin, distribution asserts
- harness/ssh.go: minimal peer SSH wrapper shelling out to /usr/bin/ssh
  (replaced by typed x/crypto/ssh client hoisted from DDIL in mulga-siv-74)

User-data scripts embedded via //go:embed under lb/testdata/.

Bash script stays in place for one CI cycle before deletion.

* fix(e2e): log client launch params + dump daemon log on InvalidInstanceType

Adds diagnostics for the LB internal client launch path. Logs the exact
InstanceType, AMI, subnet, key name, and user-data size right before
RunInstances, and registers a daemon-log dump on failure so we can
correlate the 400 InvalidInstanceType with what spinifex saw.

* refactor(e2e): serialise LB suites + share probe client across internal tests

Splits TestLoadBalancer into 4 sequential subtests (ALB/NLB ×
internet-facing/internal). Each suite creates its own TG + LB + listener,
runs its traffic test, and tears down before the next starts. Replaces
the per-suite throwaway client VM with a single long-lived probe server
launched at fixture setup; per-suite internal traffic tests GET
/probe?ip=...&proto=... against it instead of cold-booting a fresh client.

Drops peak instance count from 5 to 4 (2 app + 1 LB + 1 client), so the
internal phase passes on capacity-constrained dev nodes that previously
hit InvalidInstanceType (see mulga-siv-76, mulga-siv-77 for the underlying
spinifex bugs).

* feat(daemon): make hostReserve env-configurable for dev capacity squeeze

Adds SPINIFEX_RESERVED_VCPU and SPINIFEX_RESERVED_MEM_GB env-var overrides
read at daemon startup. Invalid values are logged and ignored so a typo
doesn't silently widen the reserve. Unblocks the LB E2E on capacity-tight
dev hosts (8 vCPU box: default 2-vCPU reserve + 3x t3.nano test load
leaves 0 free for the sys.micro LB VM). Lays groundwork for the planned
operator-tunable [capacity] config.

bead: mulga-siv-78

* fix(e2e): revert LB to per-suite client + fail-fast on terminal LB state

Reverts the shared probe-server VM that wouldn't come up reliably during
the InternalFacing suites — back to the proven bash pattern of launching
a fresh client VM per suite (one of ALB_IP / NLB_IP populated based on
the suite kind). Adds renderClientUserData + a conditional template so
each client probes only its target LB.

WaitForLBActive now bails immediately on terminal LB states (failed,
provisioning_failed) and emits a "still waiting" log line every 30s so
hangs are visible instead of silently burning the full 5-minute timeout.

* ci(e2e): add e2e-go.yml workflow + GOTESTSUM Makefile opt-in

Standalone workflow runs the new Go-based E2E harness on the existing
ci-single self-hosted runner — provisions a tofu VM, bootstraps spinifex,
installs gotestsum, runs each requested suite via the e2e Makefile, and
uploads per-test artifacts + JUnit XML + JSON streams as a build artifact.
Test summary parses the JUnit and emits ::error file=...:: annotations so
failures surface in the PR diff.

Gated to the feat/e2e-go-harness branch + workflow_dispatch so it doesn't
interfere with the existing e2e.yml while the Go conversion lands.

tests/e2e/Makefile gains a GOTESTSUM=1 opt-in: when set, the e2e target
runs gotestsum with --junitfile and --jsonfile rooted in ARTIFACT_DIR
under a suite-tagged filename derived from the first PKG component.

* feat(e2e): share probe client across both internal LB suites + SG fixes

- Replaces per-suite probe client with a single shared VM launched in the
  fixture. Saves ~60s by avoiding a cold boot between the ALB and NLB
  internal suites.
- Client cloud-init exposes a JSON trigger endpoint on :9090 in addition
  to the http.server on :80 (results dir). Each suite POSTs
  {proto, ip, count, outfile, http_port, tcp_port} to run a probe loop
  against the LB private IP and writes the result file under /tmp/httpd
  for the driver to fetch back.
- configureDefaultSG now uses the structured IpPermissions form (top-level
  shortcut is silently ignored by vpcd — tracked separately) and opens
  port 9090 in addition to 80 + 9000.
- deleteLB captures the underlying sys.micro VM id via the LB ENI before
  delete, then polls DescribeLoadBalancers until LoadBalancerNotFound so
  the next suite doesn't race the capacity reclaim.
- Internal_NLB sleeps 15s up front to let the ALB sys.micro deallocate
  fully before its own createLB fires. DescribeLoadBalancers can report
  the ALB gone before the vCPU/memory allocation is actually released on
  capacity-tight dev hosts; without this settle, NLB's createLB trips the
  sys.micro reserve and lands in terminal state=failed. Still cheaper
  than cold-booting a per-suite client.

* ci(e2e): install Go on tofu VM before running Go E2E suites

The tofu-provisioned VM ships with the spx binary and bash test scripts
but no go toolchain, so the prior workflow's "Install gotestsum on VM"
step failed with `bash: line 2: go: command not found`. Add a curl-based
Go 1.26.3 install (matching go.mod) ahead of the gotestsum install and
update the test step's PATH so make e2e-* runs the freshly-installed
go binary.

* ci(e2e): bump gotestsum to @latest for Go 1.26 compatibility

gotestsum v1.12.0 pins golang.org/x/tools v0.19.0 which fails to compile
under Go 1.26 with:
  invalid array length -delta * delta (constant -256 of type int64)
Switching to @latest pulls a newer x/tools that builds clean.

* ci(e2e): ship spinifex source to VM so make -C tests/e2e can run there

Single-node tofu VM only has the spx binary + bash test bundle at
~/e2e-tests; the Go e2e workflow was running 'make -C tests/e2e e2e-cert'
from $HOME/Development/mulga/spinifex which doesn't exist, producing:
  make: *** No rule to make target 'e2e-cert'.  Stop.

Add a checkout of the spinifex repo on the runner and rsync it (minus
.git, build/, bin/, node_modules) to the VM as
~/Development/mulga/spinifex before installing Go + gotestsum.

Interim solution; mulga-siv-80 tracks replacing the rsync with shipping
pre-built test binaries from the runner.

* ci(e2e-go): replace rsync with tar-over-ssh; VM lacks rsync

bootstrap-install.sh ships a minimal binary VM with no rsync; the
ship-source and collect-artifacts steps failed with
'rsync: command not found'. Stream a tarball over ssh instead — same
exclude list, no extra dependency on the VM.

* fix(e2e): discover single-node IPs + awsgw bind in LoadEnv

run-cert-e2e.sh single mode probes awsgw.host from spinifex.toml and
adds every non-loopback global IPv4 to the node list. The Go harness
defaulted to 127.0.0.1 only, so CI on a tofu VM (awsgw bound to the
LAN IP, not loopback) saw 'connection refused' on every TLS check.

Port the same discovery: ModeSingle now walks net.InterfaceAddrs for
NodeIPs and grep-parses spinifex.toml for the awsgw bind. Both stay
overridable via SPINIFEX_NODE_IPS / SPINIFEX_SERVICE_IPS.

* ci(e2e-go): pre-build test binaries on runner; drop go toolchain from VM

Replaces the source-tree + go + gotestsum payload that the e2e-go.yml
workflow previously shipped to the tofu CI VM with self-contained
test binaries built on the runner via `go test -c`. testdata for the
LB suite is already //go:embed'd into the binaries, so the bundle on
the VM is just `<suite>.test` files (cert: 14M, lb: 17M uncompressed).

Workflow changes
- actions/setup-go on runner.
- New step builds binaries via `make e2e-build SUITES_BUILD=...`.
- Install go-junit-report on runner; convert each VM-side test log to
  junit-<suite>.xml after artifact pull so "Publish test summary" still
  parses JUnit XML.
- Drop "Install Go + gotestsum on VM" entirely (saves ~60s + network).
- Drop source-shipping rsync/tar (saves ~30s + a lot of bandwidth).
- VM step runs `./<suite>.test -test.v -test.timeout=30m` directly.

Makefile changes
- New `e2e-build` target compiles each `SUITES_BUILD` entry into
  `BIN_DIR/<suite>.test` via `go test -c -tags=e2e`. `clean` also
  removes BIN_DIR.

Closes mulga-siv-80.

* ci(e2e-go): disable setup-go cache; upload dominates self-hosted run time

* refactor(e2e): hoist generic DDIL harness primitives to shared tests/e2e/harness

Step 1.5 of docs/development/improvements/e2e-go-harness.md. Promotes
Cluster/Node/SSH/DaemonClient/LocalStateRevision/ResetAllNodes/Witness
into the shared package so the LB, multinode, and BM scenarios in
steps 4-5 can build on the same primitives instead of duplicating SSH
+ cluster plumbing.

Moves
- ddil/harness/{cluster,ssh,daemon_client,state,reset,witness}.go
  -> harness/ (plus the witness testdata embed dir).
- ddil/harness/{fault,netem,profiles,snapshot}.go -> ddil/fault/ as a
  new package; fault.PartitionNode/HealNode/KillNATS/StartNATS/
  RestartDaemonOnly/ApplyNetem/ClearNetem/LinkProfile*/TakeSnapshot
  now take harness.Cluster / harness.Node / harness.SSH explicitly.
- ddil/harness/retry.go::Run retry-with-reset extracted as
  harness.RetryWithReset in harness/wait.go; ddil/harness/quarantine.go
  keeps the DDIL-only quarantine wrapper that calls into it.
- WaitForMode moved from fault.go to harness/daemon_client.go since
  it polls daemon state and has no fault-injection concern.
- The pre-hoist harness/ssh.go (PeerSSH, subprocess ssh) is preserved
  as harness/peer_ssh.go so the lb_test suite keeps working unchanged;
  the typed x/crypto/ssh client from DDIL now owns harness/ssh.go.
- New harness/util.go exports ShellQuote (was unexported shellQuote in
  netem.go) so both ddil/fault and reset.go/witness.go can use it.

Env var rename
- SPINIFEX_NODES / SPINIFEX_SSH_USER / SPINIFEX_SSH_KEY replace
  DDIL_NODES / DDIL_SSH_USER / DDIL_SSH_KEY. Old names still honoured
  with a stderr deprecation note (envWithLegacy) so the DDIL CI keeps
  passing until .github/workflows/e2e-ddil.yml drops the old names.
  DDIL_QUARANTINED stays DDIL-specific.

DDIL parity preserved — scenarios still call ddilh.Run for quarantine
semantics; the underlying retry-with-reset is the same code path,
just shared.

Closes mulga-siv-74.

* fix(e2e): open default SG :22 ingress via structured form before witness launch

The daemon currently drops the top-level shortcut AuthorizeSecurityGroupIngress
form silently (mulga-siv-79), so the default SG starts with no inbound :22 and
the witness EIP awaitBaseline tunnel times out under DDIL CI. Mirror the
workaround already present in lb_test by issuing the structured IpPermissions
form before LaunchWitnessVM. Idempotent on InvalidPermission.Duplicate so reruns
in the same cluster are safe.

* ci: render JUnit into job summary + collapsible groups in noisy steps

Add a reusable composite action (.github/actions/junit-report) that parses
a glob of JUnit XML files, writes a totals table + collapsible per-failure
details into $GITHUB_STEP_SUMMARY, and emits one ::error annotation per
failed/errored test case so failures surface in the run header instead of
being buried in step logs.

Apply the action to both e2e-go.yml and e2e-ddil.yml (e2e-ddil gotestsum
now also emits --junitfile so the action has input).

Same workflows also wrap noisy phases (tofu apply/destroy, scrub-env,
tar-over-ssh, per-suite test runs, cluster-log collection) in
::group::/::endgroup:: markers so the Actions UI collapses the chatter
by default and the human can expand only the failing phase. Tofu output
still tees to $TOFU_LOG so the artifact bundle is unchanged.

Future workflows (multinode, baremetal) can adopt the same pattern via
the README in .github/actions/junit-report.

* test(ddil): quarantine Scenario C until predastore §2 lands

CI run 26016840819 surfaced that ScenarioC_CleanPartition silently
depends on predastore-ddil-hardening §2 (write-quorum with deferred
parity repair). Root cause from node3 daemon log:

  predastore: write udp ...->192.168.0.22:9991: sendmsg: operation not permitted
  predastore: putObjectViaQUIC: put failed
  spx QMP: BLOCK_IO_ERROR instanceId=<witness>
  spx: StopOrTerminateInstance: Terminating
  spx: Instance state transition running → shutting-down

The 'sendmsg: operation not permitted' is the EPERM Linux returns when
iptables drops an outbound packet — exactly the OUTPUT DROP rules
PartitionNode installs. The witness VM's block I/O is backed by
distributed predastore, so the same partition that severs node3↔peer
NATS traffic also severs the witness disk's cross-shard QUIC writes.
QEMU power-downs the guest after BLOCK_IO_ERROR, the daemon's
reconciler terminates the instance, and the next AssertProgressed dials
a sshd that's already gone (hence the 'handshake failed: EOF' the test
reports).

Quarantine by collapsing C to the same scenarioSkip stub D/E/F already
use, citing predastore-ddil-hardening §2 as the dependency. Flip C
back to ENABLED in the same PR that lands §2 — that's when the witness
disk can survive a peer partition without QEMU halting.

TEST_COVERAGE.md row C flipped ENABLED → SKIPPED; added a quarantine
note explaining the predastore dependency.

* ci: colored phase banners + quiet-on-success tofu output

Pretty up the live Actions log without flooding it. Three changes:

1. .github/scripts/ci-fmt.sh — sourceable bash helpers (banner, ok, bad,
   warn, note, quiet_run) using ANSI colors that the Actions UI renders.
2. e2e-go.yml + e2e-ddil.yml — tofu phases switch back to quiet redirect
   into $TOFU_LOG (the previous tee'd version regressed live noise vs
   the original silent redirect). Each phase now prints one colored
   ok/✗ line; on failure the tail of $TOFU_LOG dumps inside a single
   collapsed group, so the live log stays scannable but the failing tail
   is one click away.
3. junit-report render.py — compact summary: short status icons (✅/❌)
   in a single column, no separate err column, single-line failure list
   (truncated to 120 chars) instead of <details> blocks that wrap badly
   on narrow screens.

Per-suite test runs still wrap in ::group:: with an inline cyan banner
so pass output collapses and the suite name is obvious when expanded.

* test(e2e): add harness.Phase / Step / Detail for human-readable test output

Test fixtures were emitting flat walls of t.Logf with every line prefixed
by the same `lb_test.go:61:` (file:line of the call site that the
t.Helper() chain bubbles up to) and forced 6-space indent. Hard to skim,
hard to find where one phase ends and the next begins.

Add three helpers in tests/e2e/harness/log.go:

  Phase(t, fmt, ...)   — flush-left colored banner via fmt.Println.
                         Bypasses t.Logf so the line lands without the
                         testing framework's indent/file:line prefix.
                         Pure visual structure; the diagnostic detail
                         stays on t.Logf.
  Step(t, fmt, ...)    — single-line sub-phase marker via t.Logf.
                         Keeps file:line attribution so a triager can
                         find the source of a progress message.
  Detail(t, k, v, ...) — key=value resource IDs via t.Logf. Same
                         attribution rationale as Step — IDs are
                         diagnostic and want to land in JUnit XML
                         bucketed with the owning test.

Why the split: Phase is purely a banner; losing JUnit attribution costs
nothing because banners aren't diagnostic. Step/Detail carry triage
context (instance IDs, AMI, etc.) and a failing test's JUnit testcase
node should still contain them, so t.Logf attribution is kept.

ANSI colors are auto-disabled when stdout isn't a TTY and GITHUB_ACTIONS
isn't set, so piped local `go test -v` stays clean.

Apply to lb_test setupSharedFixture — five Phase banners replace the
implicit run of helper logs ("Discovering cluster capacity",
"Ensuring SSH key pair", "Creating shared VPC topology",
"Launching app instances", "Launching probe client") so the live CI log
reads as a story rather than a flat resource dump.

* ci(e2e-go): strip indent + file:line on display, propagate color env over SSH

Two display bugs spotted on the previous run:

1. Phase banners came out white instead of bold-cyan because the test
   binary runs over SSH on the tofu VM, where neither GITHUB_ACTIONS
   nor a TTY is present, so harness.log.go init() disables ANSI escapes.
   Fix: export GITHUB_ACTIONS=true and FORCE_COLOR=1 in the remote env
   so the helper keeps emitting color codes.

2. Every t.Logf line still rendered as
       lb_test.go:61: instance type: t3.nano
   (4-space indent + `<file>:<line>:` prefix) because t.Helper()
   bubbles file:line to the call site. Fix: pipe the test binary's
   stdout through `sed -E 's/^[[:space:]]+([a-zA-Z0-9_]+_test\.go:[0-9]+: )?//'`
   so the display strips both. Tee to the artifact log happens BEFORE
   the sed so raw output is preserved for triage; only the live UI
   sees the cleaned form.

* feat(e2e-harness): extend harness for single-node Go suite port

Stage A of mulga-siv-89 — add the primitives the single-node run-e2e.sh
port consumes:

- AWSClient gains IAM + STS service handles, plus NewAWSClientWithCreds
  for per-tenant account-scoping in Phase 8.
- awserror.go: ErrorCodeIs, AssertAWSError, ExpectError — Go equivalent
  of the bash expect_error helper used throughout the negative phases.
- poll.go: WaitForInstance/Volume/Snapshot/Image state to any target,
  with per-resource default timeouts tuned from the bash sleep loops.
- spxcli.go: thin shellouts for spx get nodes/vms, spx top nodes,
  spx admin account create with output parsing for tenant-id/access-key.
- rawhttp.go: signed raw POST against the AWS gateway for the Phase 8
  InvalidAction probe (gateway rejects on auth before action parsing).
- ovn.go: OvnNbctl/OvnSbctl wrappers + SkipIfNoOVN for Phase 8b-e
  datapath checks; WaitForPortGroupMember handles propagation polls.
- ec2helpers.go: InstancePublicSSHHost (public-IP-or-qemu-hostfwd),
  LsblkRootGiB, serial-console-access trio, DiscoverDefaultVPC,
  idempotent AuthorizeSSHIngress.
- account.go: AccountCarousel maps tenant name -> scoped AWSClient,
  built atop NewAWSClientWithCreds for the Phase 8 isolation tests.

Pure groundwork — no new tests, no production behaviour change. The
cert + lb scenarios still compile against the extended harness.

* ci(e2e-go): auto-cancel + reap orphans to prevent runner wedge

A cancelled run on the single-runner ci-single host has been leaving
orphan tofu/terraform procs (and stale tfstate locks) behind, which
caused the next push's tofu destroy to hang for 45m+ and saturate the
runner host until sshd refused new connections.

- Add `concurrency: e2e-go-${ref}, cancel-in-progress: true` so a new
  push to feat/e2e-go-harness cancels the in-flight run instead of
  stacking on the same self-hosted runner.
- New `Reap Orphan Procs` step at job start: SIGTERM then SIGKILL any
  lingering `tofu`/`terraform` from the runner user, and unlink any
  stale `.terraform.tfstate.lock.info`.
- Harden `Teardown`: drop `set -e` (scrub-env must always run as the
  libvirt-level fallback), reap orphans before destroy, and wrap
  `tofu destroy` in `timeout 600` so a wedged provider can't pin the
  job to its 45m timeout.

* ci(e2e-go): drop push trigger, manual dispatch only

Pull the on.push branch trigger so the workflow only fires from
workflow_dispatch — matches the e2e-ddil.yml Phase-1 pattern. Push
trigger lifts again once the single-node Go port (mulga-siv-89) is
green end-to-end and run-e2e.sh is retired.

* test(e2e-single): port run-e2e.sh phases 1-4 to Go

Stage B of mulga-siv-89. Lands the TestSingleNode orchestrator + Fixture
that threads state between sequential phase subtests, plus phases:

- Phase 1: KVM check, AWS gateway TLS reachability, daemon NATS
  readiness polling, region/AZ smoke.
- Phase 1b: spx get nodes / top nodes / get vms (single-node only).
- Phase 2: nano instance-type + arch discovery.
- Phase 2b: serial-console-access default/enable/disable round-trips.
- Phase 3: create-key-pair + import-key-pair lifecycle; test-key-1 PEM
  kept for Phase 5 instance launch (cleanup deferred to teardown phase
  in stage G).
- Phase 4: architecture-aware AMI discovery via name filter
  ami-ubuntu-24.04-{x86_64,arm64}, falls back from spx import output.

Phase ordering is contractual (Phase 5+ depend on AMI, key pair, AZ).
detectPoolMode reads [network] external_mode from spinifex.toml so
stages F/G can skip pool-only phases on dev_networking fixtures.

No production code changed. cert + lb scenarios continue to compile.

* test(e2e-single): port run-e2e.sh phases 5-5e to Go

Stage C of mulga-siv-89 — the instance/volume/snapshot/image lifecycle
that everything else hangs off:

- Phase 5: run-instances (default VPC + default SG with tcp/22 opened
  via idempotent harness.AuthorizeSSHIngress), wait running, resolve
  root volume from BlockDeviceMappings.
- Phase 5a-pre: spx get vms now contains the running instance.
- Phase 5a: describe-instances metadata round-trip (type/key/AMI/BDMs).
- Phase 5a-ii: TCP wait, ssh id, lsblk cross-check vs API root volume
  size (±1 GiB tolerance — lsblk rounds down), soft hostname check.
- Phase 5a-iii: get-console-output round-trip on InstanceId.
- Phase 5b: create-volume (10 GiB) → modify-volume (20 GiB) →
  attach-volume → detach-volume → delete-volume, polling each state
  transition through harness.WaitForVolumeState.
- Phase 5b-ii: describe-volume-status on the root volume.
- Phase 5c: create-snapshot → wait completed → copy-snapshot → both
  visible → delete original → copy survives → delete copy.
- Phase 5d: AMI snapshot-backed launch verification via
  DescribeImages.BlockDeviceMappings[].Ebs.SnapshotId. Predastore-side
  config.json reads are TODO (no S3 client in harness yet).
- Phase 5e: create-image --no-reboot, wait available, capture backing
  snapshot ID for Phase 9 cleanup.

Phase 7a (attach to stopped → error) stubbed in volume_test.go for
Stage D to fill once the lifecycle stop/start lands.

* test(e2e-single): port run-e2e.sh phases 5f-8 to Go

Stage D of the single-node Go port (mulga-siv-89). Adds four files
under tests/e2e/single/ covering Phase 5f (SG egress ACL enforcement),
Phase 6 (tag CRUD), Phases 7 / 7a / 7b / 7c-pre / 7c (stop, start,
attach-to-stopped negative, ModifyInstanceAttribute, reboot, multi-count
RunInstances), and Phase 8 negatives (18 sub-tests asserting AWS error
codes via harness.ExpectError / AssertAWSError / PostAWSAction).

Wired into TestSingleNode in main_test.go; phase ordering preserved
because Phase 7 chain mutates the shared instance state (stopped at end
of 7, .small after 7b, running after 7c-pre, untouched by 7c siblings)
and Phase 8 negatives need a running instance with the AMI/key created
earlier.

Removes the placeholder phase7a_AttachToStoppedError stub from
volume_test.go (real impl now in lifecycle_test.go).

run-e2e.sh stays in tree until step-7 cleanup per the parent plan.

* ci(e2e-go): wire e2e-single target + add single to build set

Lets the in-progress single-node Go port (mulga-siv-89, Stages A-D
landed) be exercised in CI via explicit `suites: e2e-single` dispatch
input ahead of Stage G flipping the workflow default.

Workflow default suites unchanged until Phase 9 teardown lands.

* test(e2e-single): port run-e2e.sh IAM 1-7 + Phase 8 account scoping to Go

Stage E of the single-node Go port (mulga-siv-89). Adds two files
under tests/e2e/single/:

- iam_test.go (903 lines): IAM Phases 1-7 — User CRUD, Access Key
  Lifecycle, User Authentication (via harness.NewAWSClientWithCreds),
  Policy CRUD (+ CreatePolicyVersion / SetDefaultPolicyVersion /
  DeletePolicyVersion which bash lacks), Policy Attachment &
  Enforcement (allow / deny / wildcard / root bypass), Policy Lifecycle
  (DeleteConflict while attached), and idempotent Cleanup.

- account_test.go (1186 lines): Phase 8 EC2 Account Scoping — 11 Steps
  (Account Setup, Instance / Volume / KeyPair / Snapshot / VPC-Subnet /
  IGW-EIGW Scoping, Account Settings, Global Resources, Edge Cases,
  Cleanup). Uses harness.AccountCarousel for the multi-profile
  credential map and SpxAdminAccountCreate for admin account
  bootstrap.

Fixture extended with IAM cross-phase state (IAMAdminAccount,
IAM{Alice,Bob,Charlie}{KeyID,Secret}) so Phase 7 cleanup is defensive
even when an intermediate IAM phase short-circuits. All 11 Phase 8
Steps share local state in the outer function; t.Cleanup mirrors
Step 11 LIFO so a mid-Step failure still tears down accounts.

Wired into TestSingleNode. run-e2e.sh stays in tree until step-7
cleanup per parent plan.

* fix(e2e-harness): use kebab-case is-default filter for DescribeVpcs

AWS EC2 DescribeVpcs filter names are kebab-case (is-default), and the
daemon's filter allowlist enforces that. The harness sent the camelCase
SDK field name (isDefault), so the daemon returned InvalidParameterValue
400 and DiscoverDefaultVPC fataled — leaving Phase 5 InstanceID empty
and cascading 16 downstream Single-Node E2E subtests to fail.

* test(e2e-single): port run-e2e.sh phases 8b-8e to Go

Stage F of the single-node Go port (mulga-siv-89). Adds three files
under tests/e2e/single/:

- vpc_test.go (553 lines): Phase 8b (pool-mode VPC public/private
  subnet E2E — CreateVpc, dual subnets with MapPublicIpOnLaunch
  assertions, IGW attach, custom route table + 0.0.0.0/0 route,
  instance launch + SSH + external connectivity probe) and Phase 8c
  (route table validation — main RT association, local + IGW route
  presence, custom RT CRUD + association/disassociation, negative
  delete-local + delete-main assertions).
- natgw_test.go (467 lines): Phase 8d (pool-mode NAT GW E2E —
  CreateNatGateway with EIP, private subnet route via NAT, bastion-
  hopped SSH into private VM, baseline egress drop / post-NAT egress
  succeed / post-teardown egress lost). Inline waitForNATGatewayState
  helper bounds the pending->available->deleted state machine via
  harness.EventuallyErr.
- datapath_test.go (326 lines): Phase 8e (OVN-gated SG-to-SG datapath
  — two SGs with UserIdGroupPair ingress rule, OVN port-group
  membership + SB address-set wait loops, allowed traffic curl,
  denied traffic nc, revoke->drop, re-add->restore).

Pool-mode gating via fix.PoolMode for 8b/8d; OVN gating via
harness.SkipIfNoOVN for 8e. Per-phase t.Cleanup LIFO ensures
teardown unwinds even on partial failure. Wired into TestSingleNode.

* test(e2e-single): port run-e2e.sh phases 9, 9a, 9b to Go

Stage G of the single-node Go port (mulga-siv-89) — final teardown +
post-teardown verification. Adds tests/e2e/single/teardown_test.go
(226 lines):

- phase9_Teardown: DeleteSnapshot(CustomAMISnapID) -> DeregisterImage
  (CustomAMIID) -> TerminateInstances(InstanceID) + wait terminated ->
  DeleteKeyPair(KeyName). Each call swallows *NotFound via
  harness.ErrorCodeIs; unexpected errors logged as warnings so 9a/9b
  always run.
- phase9a_VerifyTeardown: DescribeInstances must show terminated or
  NotFound; DescribeImages must NOT include the deregistered AMI;
  DescribeKeyPairs must NOT include the deleted key. Clears the
  consumed Fixture fields.
- phase9b_FinalClusterStats: harness.SpxGetVMs must NOT list the
  terminated InstanceID; orphan i- rows surface as soft Logf warnings
  to avoid flakes when parallel suites share the node.

Wired into TestSingleNode. With this, mulga-siv-89's single-node Go
port (Stages A-G) is feature-complete; run-e2e.sh remains in tree
until a separate cleanup bead deletes it after CI burn-in.

* ci(e2e-go): unbuffer sed in test pipeline for live log streaming

GNU sed defaults to block-buffered stdout when stdout is a pipe
(GitHub Actions runner). Accumulates 4-64KB before flushing, so
test output appeared in sporadic batches unaligned to test
boundaries. -u flag forces line-buffered output so each go test -v
line surfaces in the Actions UI as it is produced.

Side effect: none. No process count change, no SSH session change,
no test execution change. Pure output flushing on the runner host.

* fix(e2e-single): persist key PEM across phases and skip unimplemented IAM ops

Three bugs blocked the Single-Node Go E2E suite after the DescribeVpcs
filter fix:

1. Phase 3 wrote the SSH PEM into `t.TempDir()`, which Go cleans up when
   the Phase 3 subtest exits. Phases 5a-ii / 5a-iii / 7b / 7c-pre then
   saw "Permission denied (publickey)" / "Identity file not accessible"
   and the cascade left the instance in a state that broke 7c-pre's
   `start-instances`. Move the PEM under a TestSingleNode-scoped
   `fix.TmpDir` so it survives until the whole test exits.

2. IAM Phase 2's `require.NotEmpty(t, fix.IAMAdminAccount, "")` was
   intended as a no-op (Phase 4 populates the field), but require.NotEmpty
   fails on empty regardless of message. Removed the bogus check.

3. The daemon does not yet implement `UpdateUser` (IAM Phase 1) or the
   policy-version family (IAM Phase 4): `CreatePolicyVersion`,
   `ListPolicyVersions`, `SetDefaultPolicyVersion`, `DeletePolicyVersion`.
   They return `InvalidAction` and abort the phase. Wrap each block in a
   t.Run sub-test with t.Skip so the surrounding phase still runs and
   the skips show up explicitly in the test report.

* test(e2e): parallelise hot phases + tune fast-path polls

Squash merge of feat/e2e-parallel-quickwins (mulga-siv-96). Four
quick wins from decomposing run-e2e.sh into Go phase subtests:

- Phase 8 negatives (single/negative_test.go): t.Parallel() inside
  each of the 18 read-only error-path sub-tests. ~5-10x speedup.
- IAM Phase 4 policies (single/iam_test.go): EC2ReadOnly stays
  seeded sequentially (populates fix.IAMAdminAccount); the other
  four policies fan out as siblings under a wrapping
  create_policies_parallel t.Run. ~5x on the Phase 4 sub-step.
- Volume + snapshot fast paths (single/{volume,snapshot}_test.go):
  pass harness.WithPoll(500ms) on the five state transitions that
  finish in <1s on local QEMU. Halves Phase 5b / 5c wall-clock.
- Cert per-IP loop (cert/cert_test.go): t.Parallel() inside the 4
  inner t.Run(ip, ...) blocks. Cuts cert phase by len(nodes).

No harness changes, no Fixture changes, no test-execution-order
changes. mulga-siv-96.

* test(e2e-lb): resolve peer availability before shared fixture setup

setupSharedFixture builds a VPC + 2 app VMs + probe client (minutes
on capacity-tight dev hosts) and previously ran BEFORE the peer
pickup + ssh.Ping. On single-node, the InternetFacing_* subtests
would correctly t.Skip on peer == "" — but only after the fixture
work and once subtests started, so the wait appeared to be attached
to the first subtest name gotestsum printed.

Reorder: pickPeer + ssh.Ping first, log "internet-facing will skip"
immediately, then build the fixture for the internal subtests.
No behavior change for multi-node + peer-reachable; on single-node
the skip rationale surfaces before the fixture wait.

* test(e2e-single): extend SSH wait budget to 3m on slow boot paths

CI run 26034322018 timed out Phase5a_ii_SSH (60s budget) and
Phase8b_VPCSubnetE2E (2m budget) on the TCP-port-open poll while
sshd was still finishing pam/cloud-init. Bump all four wait sites
to 3m as a stop-gap:

- single/instance_test.go phase5aii_SSHProbe
- single/lifecycle_test.go waitForSSHReady (Phase 7b/7c/7c-pre)
- single/vpc_test.go phase8b_VPCSubnetE2E
- single/natgw_test.go phase8d bastion SSH wait

Proper fix tracked under mulga-siv-101 (hoist a harness.WaitForSSH
that probes the actual handshake, not just tcp/22 reachability).

* test(e2e-single): skip-gate IAM3/IAM5/IAM6 until daemon handlers land

CI run 26034322018 surfaced three IAM daemon gaps:

- IAM3_UserAuthentication: alice's freshly-created access key returns
  403 from DescribeInstances — daemon doesn't honour scoped IAM key
  signatures yet.
- IAM5_PolicyAttachmentEnforcement: cascades from IAM3 (alice can't
  sign).
- IAM6_PolicyLifecycle: DetachUserPolicy returns 404 even on
  attachments Phase 5 confirmed — daemon attachment ledger gap.

Skip-gate each phase with t.Skip + a pointer to mulga-siv-100 so the
remaining IAM coverage (IAM1/IAM2/IAM4/IAM7) keeps surfacing
regressions, and the suite as a whole doesn't fail on known gaps.
Flip to real assertions once the daemon handlers land.

* test(e2e-single): probe full SSH handshake (not just TCP port open)

CI run 26036025293 hit "Connection timed out during banner exchange"
on Phase5a-ii / 8b / 8d even with the 3m TCP-port-open budget: tcp/22
opens immediately, but sshd is still finishing pam/cloud-init, so the
first real runSSH call afterwards races the half-open daemon.

Switch waitForSSHReady to issue an actual ssh BatchMode + ConnectTimeout
handshake against the target, retrying until the daemon completes the
banner exchange. Drop the four TCP-only Eventually loops in favour of
the upgraded helper:

- instance_test.go phase5aii_SSHProbe
- lifecycle_test.go waitForSSHReady (Phase 7b / 7c-pre / 7c)
- vpc_test.go phase8b_VPCSubnetE2E
- natgw_test.go phase8d_NATGateway (bastion)

Signature: waitForSSHReady(t, host, port, keyPath). Backwards-compat
alias waitForSSHHandshake exposed for the instance_test caller. Proper
harness hoist tracked under mulga-siv-101.

* test(e2e-harness): dual-emit Step + Detail for live CI streaming

go test's testing framework buffers t.Logf output per-test and releases
it only on PASS/FAIL. Long subtests (Phase8Acct_AccountScoping ~115s,
Internal_NLB ~60s, Phase8b_VPCSubnetE2E 2-3m, Phase8d_NATGateway ~90s)
therefore went silent in CI for the entire subtest duration, even with
sed -u line-buffering in the workflow pipeline.

harness.Phase already wrote to os.Stdout directly for this reason.
Extend the pattern: have Step and Detail dual-emit — write the same
line to os.Stdout (streams live) AND t.Logf (keeps JUnit per-test
attribution). The duplicate on a failure is acceptable; both copies
carry identical content.

mulga-siv-103 (note: numbering skipped past siv-102 which was already
filed in the parent branch).

* test(e2e-harness): drop t.Logf duplicate from Step + Detail

The dual-emit (Fprintln + t.Logf) caused every Step/Detail line to
appear twice after long subtests: once live via stdout, once again
when the testing framework released its per-test buffer at
PASS/FAIL. Most visible after lb subtests (Internal_NLB ~60s) where
the bulk release dumped ~dozens of duplicated lines at once.

Drop the t.Logf copy. go-junit-report parses stdout between
`=== RUN` and `--- PASS/FAIL` markers, so per-test attribution in
JUnit XML is preserved without the duplicate.

Refs: mulga-siv-103

* test(e2e-harness): stream lb-waiter progress live in CI

WaitForLBActive, WaitForTargetsHealthy, WaitForENICleanup, and
WaitForInstanceRunning emitted progress via t.Logf, which the
testing framework buffers per-test. After the previous commit
dropped the dual-emit, that meant every poll loop went silent
until subtest end — visible in CI as 'nlb is active' hanging on
screen for the whole duration of the subsequent traffic check.

Route progress through harness.Step (direct stdout). Also emit a
'waiting for X' Step at the start of each helper so observers
know what the silent stretches actually represent.

Refs: mulga-siv-103

* test(e2e): dump VPC/IGW datapath diagnostics on Phase8b SSH timeout

Phase8b's 3min SSH timeout on a fresh-VPC VM (CI run 26037892507) is
the customer-visible surface of mulga-siv-105 — vpcd's handleIGWAttach
returns before ovn-northd compiles + the gateway chassis installs
flows. Two other cleanup-only bugs (siv-106 missing spinifex:cidr,
siv-107 dnat_and_snat double-delete) showed up in the same triage.

Keep the test hard-failing so the regression stays visible, but dump a
triage bundle on timeout so each occurrence is actionable:

- guest console output (last 4KB — boot + cloud-init state)
- ovn-nbctl show + ovn-sbctl show
- Logical_Router external_ids (confirms siv-106 reproduction)
- NAT rules (confirms siv-105 + siv-107 surface)
- Port_Binding chassis,up (confirms gateway port up state)

Diagnostics go straight to stdout (Step/Detail rationale) so they
stream live in CI rather than dumping at PASS/FAIL.

Refs: mulga-siv-105, mulga-siv-106, mulga-siv-107

* ci(junit-report): drop parent t.Run containers from tally + list skips with reasons

GitHub Actions test summary was counting Go's top-level Test* parent
plus its failing subtest as two distinct failures (the parent is just
a rollup of its children). The summary now de-dupes by dropping any
test case whose name is a strict prefix of another's, so the per-file
counts and the Failures block both match the actual leaf-test
outcome. CI run 26037892507 was reporting '2 failed' for single when
it should have been 1.

Also adds a collapsible Skipped section listing each skipped leaf test
with its t.Skipf call-site reason (the .go:<line>: line from the
CDATA). ANSI escapes from harness.Phase banners are stripped so the
reason is plain text. Reasons are useful triage signal — current run
has 9 skips spread across daemon gaps (mulga-siv-100) and pool-mode
gates (InternetFacing_*).

Refs: mulga-siv-89

* ci(e2e-go): propagate cancel to remote .test procs + nuke VM before destroy

Two related leaks made cancelled runs strand QEMU work on the libvirt host:

1. The long `ssh tf-user@VM "for SUITE in …; do ./$SUITE.test"` ran
   without -tt, so when the runner cancelled the step the local ssh
   died but sshd never sent SIGHUP through (no PTY). The remote
   `.test` binary orphaned and kept running until its own 30m
   `-test.timeout`, holding tmp dirs, NATS connections, and qcow2 file
   handles.
2. Teardown went straight to `tofu destroy` without first killing any
   stragglers on the VM, so destroy raced the .test's open file handles
   on the root disk — sometimes successfully, sometimes leaving the
   libvirt host with a half-released qcow2.

Fix:
 - Allocate a PTY on the run-suites ssh (`-tt`) so sshd HUPs children
   when the local ssh dies.
 - Add a trap (EXIT INT TERM) in the run-suites step that ssh's back
   to the VM and pkill's `/spinifex-e2e-bin/*.test` belt-and-braces.
 - Mirror the same pkill at the top of Teardown so destroy runs against
   a quiesced VM.

Both cleanups are scoped to the per-run wan_ip — safe to land while
multiple ci-single runner agents run concurrent jobs against different
tofu envs on the same host (we deliberately keep that parallelism).

Refs: runner host wedged 2026-05-19 (post-cancel orphans suspected;
no journal access yet to confirm).

* ci(e2e-go): scope orphan reap to GITHUB_WORKSPACE so it spares sibling runners

Reap Orphan Procs (job start) and the in-Teardown pkill block were using
`pkill -u $UID_SELF -x tofu/terraform` plus `find $HOME -maxdepth 6 -name
.terraform.tfstate.lock.info`. The single host runs 5+ self-hosted runners
all as `tf-user`, so every e2e-go run was SIGKILLing in-flight tofu from
sibling workflows (e2e.yml, e2e-ddil.yml, e2e-baremetal.yml, ...) and
deleting their state-lock files — exactly the kind of cross-runner
collateral the reap was meant to recover from.

Scope by `/proc/$pid/cwd` starting with $GITHUB_WORKSPACE; each runner's
workspace dir is unique on the host, so only this run's own tofu procs
match. Find for stale lockfiles is likewise scoped to $GITHUB_WORKSPACE.

* ci(e2e-go): bump setup-go v5->v6, upload-artifact v4->v7

GitHub now warns Node 20 actions are deprecated. e2e-go.yml lagged the
rest of the repo; bump to match versions already in use:

- actions/setup-go@v5 -> @v6   (matches spinifex.yml)
- actions/upload-artifact@v4 -> @v7  (matches release.yml, e2e-ddil.yml)

checkout@v6 and create-github-app-token@v3 are already current across
all workflows. The local junit-report action is `using: composite`
(shell-only), so the Node runtime change does not apply.

* fix(vpcd): add flows-ready barrier after IGW attach (mulga-siv-105)

handleIGWAttach wrote the external switch + gateway port + LRP + default
route to OVN NB and returned immediately, before ovn-northd had compiled
NB -> SB and before ovn-controller on the gateway chassis had installed
the resulting flows. A subsequent RunInstances -> vpc.add-nat could
complete while the datapath was still dark; the launched VM was then
unreachable on its public IP for whatever flow-install latency the
chassis happened to incur. Customer-visible as 'I just created a VPC,
launched a VM, and can't SSH in' for ~minutes.

Reproduced deterministically in CI run 26037892507 Phase8b: a VM in
a fresh VPC was unreachable at 192.168.0.202:22 for 3+ minutes, while
a VM at the same public IP in the warm default VPC (Phase8d) was
reachable in ~40 seconds.

Block at the end of handleIGWAttach on `ovn-nbctl --wait=hv sync`,
which bumps NB_Global.nb_cfg and waits for every connected chassis to
acknowledge the new sequence number — i.e. flows installed. Bounded by
--timeout=30; overruns log a WARN and continue (a 30s OVN stall is
already a deeper problem than failing VPC create would surface).

waitForFlowsHV is a package var so tests can stub it; in environments
without ovn-nbctl on PATH the shell-out fails fast and the WARN path
returns nil, so existing IGW tests stay green without a live OVN.

Refs: mulga-siv-105

* fix(vpcd): store spinifex:cidr on VPC create (mulga-siv-106)

handleVPCCreate built the OVN logical router with only spinifex:vpc_id
and spinifex:vni in ExternalIDs. Cleanup paths (handleIGWDetach + NAT
sweeps) read external_ids['spinifex:cidr'] to scope SNAT removal to
the VPC's own CIDR; when unset, they fell back to an overbroad
10.0.0.0/8 and emitted a WARN.

reconcileVPC already stored the same key at startup; the live-create
path drifted. Add the field to handleVPCCreate, log the cidr alongside
vpc_id, extend TestTopologyHandler_VPCCreate to assert the external_id
is set.

Refs: mulga-siv-106

* fix(vpcd): make handleDeleteNAT idempotent on 'already absent' (mulga-siv-107)

Instance termination fans out through multiple cleanup paths
(instanceCleanerAdapter.ReleasePublicIP AND
VPCServiceImpl.DeleteNetworkInterface), both of which publish
vpc.delete-nat for the same (vpc, logical_ip). The publish is
fire-and-forget (utils.PublishNATEvent uses PublishEvent for
vpc.delete-nat, not RequestEvent), so callers never branch on the
response. The second publisher then triggered a spurious
'ERROR vpcd: failed to delete dnat_and_snat rule ... not found' log
line ms after the first delete succeeded — confusing triage signal
with no actionable consequence.

Add ErrNATNotFound sentinel to the OVN client interface and wrap the
not-found return paths in both LiveOVNClient and MockOVNClient.
handleDeleteNAT matches errors.Is(err, ErrNATNotFound) and treats
that as success (logs INFO 'already absent (idempotent)').

Existing TestTopologyHandler_DeleteNAT_NotFound asserted the opposite
contract; the comment claimed EIP disassociation needed the error
signal, but DisassociateAddress also fire-and-forgets vpc.delete-nat,
so the contract never had a real consumer. Test renamed to
_Idempotent with assertSuccess.

Other failure modes (router missing, OVN unreachable, transact error)
still surface as ERROR + reply with the error string.

Refs: mulga-siv-107

* ci(e2e-go): cluster JUnit failures + name likely root cause (#230)

* ci(e2e-go): cluster JUnit failures + name likely root cause

New composite action `.github/actions/e2e-analyze` runs after
`go-junit-report` converts each suite log. For every `<failure>` it
strips ANSI, normalises dynamic noise (EC2 IDs, UUIDs, IPs, timestamps,
file:line) to a stable signature, picks the earliest non-cascade
failure per suite as the likely root cause, and buckets the rest by
signature. Output is appended to `$GITHUB_STEP_SUMMARY` and written to
`<log-dir>/analysis.md` so it travels with the artifact bundle.

Cascade markers (`must populate fix.`, `Should NOT be empty`,
`Expected value not to be nil`) collapse the typical "one upstream
phase fails, ten downstream `require.NotEmpty` assertions trip" pattern
into a single grouped entry under the real first failure.

The analyser is advisory — it always exits 0. The existing
"Fail job if any suite failed" gate keeps owning exit-code semantics.

Stage 1 of `docs/development/improvements/e2e-go-failure-analysis.md`
(mulga-siv-102). Stage 2 (per-failure log slicing) and Stage 3
(rule-based hints via `tests/e2e/.failure-rules.yaml`, placeholder
seeded here) are independent follow-ups.

CI wiring:
- e2e-go.yml: new "Analyze e2e failures" step between "Publish test
  summary" and the artifact upload, always-runs.
- spinifex.yml: new `make test-actions` step so the golden-file tests
  under `.github/actions/e2e-analyze/testdata/` run on every PR.
- Makefile: `test-actions` target; kept out of `test-cover` so CI-only
  tooling doesn't dilute coverage %.

Golden fixtures: a synthetic cascade-vpcs case (one Phase 5
InvalidParameterValue root + 15 downstream cascades), one real
single-failure case captured from run 26037892507, and a clean
no-failures case.

* ci(e2e-go): per-failure log bundles with time-window slicing

Stage 2 of the e2e failure analyzer. For each failure surfaced by
Stage 1, materialise <log-dir>/analysis/NN-<TestName>/ containing:

  failure.txt — summary (test, start, duration, file-site, error)
  journal.log — spinifex-journal.log sliced to
                [StartAt - 5s, StartAt + Duration + 5s]
  test.log    — test-<suite>.log block between `=== RUN <name>`
                and the matching `--- FAIL` marker
  <copies>    — any files the harness already dropped at
                <log-dir>/<TestName_with_/_replaced>/

Report links each entry to its bundle so a reader on the Actions
page goes straight to the relevant slice.

Workflow now invokes journalctl with --output=short-iso so the
analyzer can parse wall-clock timestamps for the journal window.
Lines without a parseable timestamp inherit the previous line's
classification (keeps multi-line records and stack traces
contiguous).

Render output is unchanged when BundlePath is empty, so the Stage 1
golden snapshots still match.

* ci(e2e-go): restore GOTOOLCHAIN=auto after setup-go v6 bump

setup-go@v6 flipped the GOTOOLCHAIN default from "auto" to "local",
which makes Go refuse to auto-download the toolchain version named
in go.mod. The self-hosted ci-single runner ships /usr/local/go
older than spinifex/go.mod's `go 1.26.3`, and build-install-artifacts.sh
prepends that path so the system Go wins the resolution race. Under
v5 ("auto"), Go silently fetched 1.26.3 on demand; under v6
("local"), the Build Install Artifacts step errors out:

  go: spinifex/go.mod requires go >= 1.26.3 (running go 1.26.1; GOTOOLCHAIN=local)

Re-set the env to "auto" so behaviour matches pre-v6 runs.

* ci(e2e-go): re-export GOTOOLCHAIN=auto after setup-go

Workflow-level env doesn't help: setup-go@v6 writes GOTOOLCHAIN=local
to $GITHUB_ENV, which overrides workflow env in every later step.
Add a dedicated step right after setup-go that appends
GOTOOLCHAIN=auto to $GITHUB_ENV so the Build Install Artifacts step
(which uses /usr/local/go from a stale runner path) can self-heal by
fetching the toolchain named in go.mod, matching pre-v6 behaviour.

* fix(vpcd): add flows-ready barrier after dnat_and_snat add

handleAddNAT wrote the NAT rule to OVN NB and returned immediately,
mirroring the gap siv-105 closed for handleIGWAttach but on the NAT
add path. ec2d/RunInstances then returned success while ovn-northd
was still compiling NB->SB and ovn-controller hadn't installed the
DNAT/SNAT flows on the gateway chassis, so the freshly launched VM
was unreachable on its public IP for whatever flow-install latency
the chassis happened to incur.

Reproduced in CI run 26072432957 Phase8b_VPCSubnetE2E: VM at
192.168.0.212 timed out at 3min while diagnostics showed
Port_Binding up=true for both the VM eni and the chassis-redirect
gateway. SB-side convergence was complete; the missing piece was the
same `ovn-nbctl --wait=hv sync` barrier siv-105 added to IGW attach,
applied at the end of handleAddNAT as well.

Reuses the existing package-var `waitForFlowsHV` so tests can stub
it; no new infra. Parallel unit test asserts the call site fires
exactly once per add-nat.

* ci(e2e-analyze): real-artifact fixes for journal slicing

Three bugs surfaced after Stage 2 ran against real CI artifacts in
run 26072432957:

1. Regex `[+-]\d{4}` rejected the colon-offset form (e.g. `+10:00`)
   that systemd's `journalctl --output=short-iso` actually emits on
   most versions. Added a parser that tries RFC3339 first and falls
   back to the no-colon `-0700` layout. Result: 0-line journal slices
   become populated.

2. go-junit-report's `timestamp` attr on <testsuite> records the
   moment the XML was produced (post-suite), not when the tests
   started. Computing StartAt as `that + cumulative-priors` placed
   every failure AFTER the journal collection ended, so windows
   always missed. Workflow now writes `${ARTIFACT_DIR}/test-<suite>.start`
   right before running each suite; analyzer prefers that file over
   the junit timestamp.

3. Persisted `OffsetFromSuiteStart` on each Failure so the
   suite-start override can recompute StartAt without re-parsing the
   XML.

Unit tests added for the colon-offset journal format. End-to-end
test (TestWriteBundles_EndToEnd) still passes with the new layout.

* ci(e2e-analyze): skip parent testcases when summing suite offsets

go-junit-report emits one <testcase> for the parent Go test AND each
subtest, with the parent's time = sum of its children. ParseFile was
summing every testcase into the suite-cumulative-offset counter, so
every leaf's offset was inflated by ~the parent's total duration.
Visible on run 26073817490 as Phase8b's StartAt landing 13 minutes
after the suite finished collecting logs — beyond the journal window,
so the per-failure journal slice was empty.

Pre-compute the leaf set per suite (a name is a leaf iff no other
testcase name starts with `<name>/`) and only accumulate cumul on
leaves. Golden snapshots updated; the offset for the only failure in
each fixture now matches the actual leaf-sum start time.

* test(e2e-harness): capture IP-targeted datapath state on Phase8b SSH fail

Phase 1 diagnostics for mulga-siv-111. The Phase8b SSH timeout
reproduced on the e2e-failure-analysis branch with siv-105's IGW
barrier AND the new add-nat barrier BOTH firing cleanly, so the
residual gap is downstream of `--wait=hv sync` — most likely stale
OVS conntrack, stale upstream-host ARP, or an OF flow-install miss.

DumpVPCFlowDiagnostics now takes a VPCDiagnosticsOpts carrying the
external IP, logical IP, and per-test artifact dir. When set, the
helper greps `ovs-ofctl dump-flows br-int`, `conntrack -L`, and
`ip -4 neigh show` for the external IP / logical IP and snapshots
`ovn-nbctl find NAT external_ip=…`. Each capture is both printed
inline (existing affordance) and written to a separate file under
fix.Artifacts so the Stage 2 analyzer bundler picks it up alongside
the journal + test-log slices, no analyzer changes needed.

Phase8b's caller now passes pubIP / privIP / fix.Artifacts so the
captures fire on the next failure; updates the t.Fatalf message to
point at siv-111 instead of siv-105 (which is the now-closed parent).

* fix(e2e-single): authorize SSH ingress on fresh-VPC default SG in Phase8b

Phase 8b stands up a non-default VPC and runs an instance there. Its
auto-created default SG denies all ingress, so the SSH probe times out
even when every datapath barrier converges — OF flow captures show the
SYN reaches OVN, gets DNAT'd at table 13, then drops at the ACL between
tables 13 and 17. The bash driver relies on admin init having pre-baked
this rule on the *default* VPC's default SG; a fresh VPC has not.

Add a DescribeSecurityGroups + AuthorizeSSHIngress step between
route-table setup and run-instances, using the existing harness helper.
Fix surfaced via mulga-siv-111's Phase 1 diagnostics (OF flow + ACL
drop counts), invalidating the H1/H2/H3 stale-state hypotheses in the
bead plan doc.

* test(e2e): dual-detect ubuntu image version (24.04/26.04) during gold-image transition

After mulga gold image bumped to v6-fastboot (stages ubuntu-26.04 / resolute
instead of ubuntu-24.04 / noble), all consumers that hardcoded 24.04 break on
the new image. Make them detect at runtime so v3 and v6 envs both pass.

- tests/e2e/run-e2e.sh: DescribeImages filter accepts both
  ami-ubuntu-{26,24}.04-<arch>, then derives IMAGE_NAME from the match.
- tests/e2e/run-pseudo-multinode-e2e.sh: prefer ~/images/ubuntu-26.04.img,
  fall back to ubuntu-24.04.img; pass detected version to spx import.
- tests/e2e/single/image_test.go: walk candidate catalog names (26.04 first,
  then 24.04), stop on the first one DescribeImages can resolve.
- .github/workflows/e2e-baremetal.yml: download resolute (26.04) into
  BM_ISO_CACHE; update BM_UBUNTU_IMAGE env var path.
- docs/terraform-workbooks/{bastion-private-subnet,s3-webapp,nginx-webserver}:
  AMI filter matches `*ubuntu-26.04*` OR `*ubuntu-24.04*` (AWS values=
  array is ORed).

Companion changes for mulga (bootstrap scripts, baremetal, iso pipeline)
land in scripts/tofu-cluster/* and scripts/{tofu-iso,baremetal,iso-builder}/*
under bead mulga-siv-114. Drop the 24.04 fallbacks once all envs are on the
v6 gold image and 24.04 entries are removed from spinifex/utils/images.go.

* feat(e2e): add service-interfaces.yaml manifest + validator

Source of truth for which spinifex services produce/consume which NATS
subjects, and which e2e suites cover which services. Consumed downstream
by the targeted suite selector (Bead 4) to derive subset E2E runs from a
PR diff so single-service changes stop paying the full 25 min suite cost.

- docs/service-interfaces.yaml: 7 services, 4 active suites (cert, lb,
  single, ddil). Subscribes / publishes / depends_on filled from grep
  of NATS subjects in source. spinifexui marked covers_no_suite so
  UI-only diffs skip e2e entirely. Future suites (multinode, reboot,
  tofu, baremetal) commented in until Go ports land.
- tests/e2e/manifest-check: schema + cross-reference validator (path
  existence, subject regex, duplicate detection, suite covers resolves
  to a real service, fixtures references resolve). 8 unit tests cover
  the failure modes plus a load-and-validate on the real manifest.
- Makefile: manifest-check target, hooked into preflight.
- docs/DESIGN.md: link to the manifest under "NATS Messaging".

mulga-siv-116. See docs/development/improvements/e2e-targeted-suite-selection.md.

* fix(e2e): drop catalog-download import path from phase4_Image

`spx admin images import --name ubuntu-26.04-x86_64` with wantErr=true
was meant to detect that bootstrap-install.sh already imported the AMI
and short-circuit on the duplicate exit code. After the v6 gold-image
bump preloaded `~/images/ubuntu-26.04.img` and bootstrap-install.sh
switched to `--file` for the import, two things broke at once:

  - The catalog `--name` path no longer hits a duplicate guard for the
    --file-imported AMI, so the import re-downloads ~857MB and either
    succeeds (failing the wantErr=true assertion) or wedges the job
    timeout while the catalog server crawls along at 16KB/s.
  - `--file` from the test won't work either: the test binary runs as
    `tf-user` over SSH, while bootstrap-install.sh placed the image at
    `/home/spinifex/images/...` (mode 0700 home dir).

bootstrap-install.sh is already responsible for staging the AMI. The
test's job is verifying DescribeImages round-trips by-name and by-ID —
not re-exercising import. Trust the bootstrap-staged AMI and stop
calling import.

Keeps the 26.04→24.04 dual-detect for the v3 gold image transition;
drop the 24.04 candidate when no envs remain on v3.

Refs mulga-siv-115 (caught by the EC2 cold-boot fast-path E2E run on
feat/ec2-coldboot-fastpath).

* ci(e2e-go): default to e2e-single + harden status-report SHA fallback

Two changes to .github/workflows/e2e-go.yml:

1. Default `suites` input now includes e2e-single so a no-input
   manual dispatch exercises the full single-node ladder. Single-node
   Go harness is greenable now (image_test fix at 10eb38a).

2. Report E2E (Go) Status job no longer gated on `inputs.sha` and
   falls back to `github.sha` when the input is unset. Previously a
   manual dispatch without a PR head SHA either skipped the status
   post entirely or hit `gh api repos/.../statuses/` with an empty
   path component (the 'invalid hash' error) — tests passed, the
   report step failed silently. Now status posts on every dispatch
   against the dispatched ref's commit when no explicit SHA given.

Closes mulga-siv-112.

* feat(e2e): add Ensure* fixture API with memoization + cleanup

Introduces tests/e2e/harness/fixtures.go: the memoized, cleanup-aware
provisioning helpers that Bead 3 (single-fixture-migration) will rewrite
phase tests around.

Each Ensure* helper:
- takes (t *testing.T, fx *Fixture, args...)
- memoizes by a key derived from args (sync.Mutex + singleflight)
- registers t.Cleanup on the Fixture's parent test so memoized resources
  survive child-subtest lifetimes
- bakes readiness polling into the helper (no sleeps in callers)

Exported helpers: EnsureKeyPair, EnsureAMI, EnsureDefaultVPC,
EnsureSubnet, EnsureSG, EnsureInstance, EnsureVolume, EnsureSnapshot,
EnsureNATGateway, EnsureLoadBalancer.

Fixture stores ec2iface.EC2API + elbv2iface.ELBV2API so unit tests can
inject fakes without building a real AWSClient (TLS + env). Compile-time
checks guard that the SDK concrete types satisfy the stored interfaces.

Manifest fixtures: block populated — Bead 4 selector will resolve test
coverage from AST-scanned Ensure* call sites via this map.

Makefile: new test-harness target runs the harness unit tests under
-tags=e2e (mocked, no infra). Hooked into preflight so signature drift
and memo/cleanup regressions surface locally.

Bead 2 of docs/development/improvements/e2e-targeted-suite-selection.md.
No existing tests modified — fixture API is net-new.

* feat(e2e): port run-reboot-e2e.sh to Go

Adds tests/e2e/reboot/reboot_test.go — Go port of the single-node host-reboot
resilience driver (cell #18). Runs from the GitHub Actions runner (not
shipped to the VM like cert/lb/single) because systemctl reboot kills any
in-VM process mid-step.

All AWS API traffic crosses the WAN to https://WAN_IP:9999 via the SDK;
SSH-level ops (reboot, ovn-nbctl, journalctl, HTTP burst) hop via
harness.PeerSSH. Trust path tries to SCP the cluster CA off the VM and
falls back to InsecureSkipVerify with a log message if SCP fails — the
cert suite already validates real trust, so the fallback is intentional.

Harness changes:
- env: WANHost field sourced from SPINIFEX_WAN_IP, distinct from
  ServiceIPs[0] (which is the awsgw bind IP, often loopback in-VM).
- aws: SPINIFEX_AWS_INSECURE=1 escape hatch when the runner has no CA on
  disk. Used as the fallback when CA fetch fails.
- cert: SPINIFEX_CA_CERT explicit path override so the reboot test can
  point ResolveCACert at the SCP'd tmp file.
- peer_ssh: IsReachable() probe wrapper for cleanup paths that must skip
  rather than fatal when the host is mid-reboot.

Workflow (.github/workflows/e2e-go.yml):
- New e2e_go_reboot job, opt-in via `e2e-reboot` in the SUITES dispatch
  input. needs: e2e_go_single to serialise on the ci-single self-hosted
  runner. Fetches AWS creds from the VM's ~/.aws/credentials over SSH
  (mirrors the cred hop already proven by e2e-ddil.yml).
- e2e_go_single filters 'reboot' out of its build + run loops so the
  in-VM driver doesn't try to ship reboot.test to the VM and reboot it
  from inside.
- e2e_go_status treats skipped reboot as success.

Refs mulga-siv-118. Plan: docs/development/improvements/e2e-go-reboot-port.md
(in the mulga parent repo).

* ci(e2e-go): run reboot job in parallel with single

Drop `needs: e2e_go_single` from e2e_go_reboot. Both jobs target the
same [self-hosted, ci-single] label, so GitHub Actions serialises on
runner allocation rather than blocking via job ordering — parallel-by-
spec, queued-by-runner. Lets a reboot-only dispatch start immediately
instead of waiting for an unrelated single-job pre-condition.

* fix(e2e/reboot): wait for both backends to serve before post-reboot burst

Phase 8.6 previously probed until ANY HTTP response from the ALB, then
fired a 20-req burst. Post-reboot, only one of the two backends may be
serving (the second is still bringing its responder online) while the
daemon's TG cache still shows pre-reboot 'healthy' for both — so
WaitForTargetsHealthy returns in ms instead of seconds, the ANY probe
matches the first-up backend, and the burst lands 20/0 instead of 10/10.

Probe until BOTH backends' instance_ids each appear at least once before
the round-robin burst — confirms recovery has reached both, not just one.

Underlying daemon-side TG cache staleness tracked separately as
mulga-siv-119. This wait is the test-side guard; the daemon fix will
make WaitForTargetsHealthy meaningful again post-reboot.

Refs mulga-siv-118.

* ci(e2e-go): skip single job when dispatch requests only reboot

Add if: gate to e2e_go_single that skips the job when the workflow_dispatch
suites input contains none of {e2e-single, e2e-cert, e2e-lb}. Push events
and the default suites list still trigger it, so plain PR runs are
unaffected. Avoids ~15min of wasted tofu provision+bootstrap+teardown
when only the runner-resident reboot suite is requested.

* fix(e2e/reboot): bump post-reboot LB recovery timeout to 5min

Pre-reboot the test creates the LB AFTER apps are already running, so
HAProxy starts probing against an already-serving responder — ~75s to
healthy. Post-reboot the daemon's recovery scan launches app VMs and
the ALB sys.micro VM simultaneously, so health checks start probing
within seconds of app boot beginning and both targets honestly report
unhealthy until the responder unit finishes starting. Cloud-init's
per-instance semaphore means no shortcut path on relaunch, so guest
second-boot can be slower than first boot.

Bash run-reboot-e2e.sh hid this behind stale 'healthy' state read from
the daemon's pre-reboot TG cache — fixed via ResetTargetHealthOnStartup
(mulga-siv-119), which made the test honestly wait on real lb-agent
reports. The 180s bash inherited turned out to be wishful thinking
backed by the cache bug, not measured recovery time.

5min matches the actual post-reboot eventually-consistent window
observed on run 26134156355. Refs mulga-siv-118.

* feat(e2e/reboot): ssh into guest VMs on failure for HTTP responder diag

Post-reboot failures bottom out at "0/2 healthy" with no insight into
whether the responder unit died, port 80 isn't bound, or the OVN path is
broken. Capture the keypair material from CreateKeyPair so OnFailure can
hop host -> qemu hostfwd:22 -> guest and dump systemctl status, port
listeners, curl localhost, and the responder journal per instance.

* fix(e2e/reboot): probe app instances via public IP (no QEMU hostfwd)

Previous hostfwd-SSH approach didn't apply: app VMs use pure OVN tap
interfaces (qemu argv has no hostfwd=tcp:*:*-:22), so the regex never
matched. Replace with host-side probes against the IGW-NAT'd public IP:
ping, /dev/tcp connect, and curl. Combined with the qemu ps check and
ovn-nbctl list nat dump, this localises post-reboot failures to one of:
VM not running, OVN DNAT missing, responder down, or sys.micro-only
reachability (path asymmetry).

* feat(e2e/reboot): probe ALB + dump host OVN/OVS state on failure

Last run showed apps unreachable from host post-reboot (ping 100% loss,
tcp refused) even though OVN dnat_snat rules looked correct. Need to
distinguish gateway/ext-bridge breakage from app-side breakage: add a
parallel ALB-public-IP probe (works pre-reboot, so any post-reboot
failure isolates the regression) plus a full host net-state dump (ip
route, ip neigh, ovn-nbctl show, ovs-vsctl show, br-int port list).

* feat(e2e/reboot): dump qemu serial console per app on failure

/run/spinifex/console-i-<id>.log captures cloud-init, kernel boot,
systemd, anything the guest emitted to ttyS0. Tail to 256KiB (~4x a
typical Linux boot) so the latest boot lands in full plus the tail of
the prior. Surfaces guest-side boot failures (kernel panic, fs
corruption, cloud-init OOM, etc.) that are invisible to host-side
network probes.

* feat(e2e/reboot): SSH into guest VMs via IGW for responder root-cause

Last run nailed the symptom: ALB returns 503, app public IPs answer TCP
with RST (port 80 not bound), so reboot-e2e-httpd.service isn't running
on relaunched VMs. To find out why (unit never installed? installed but
not enabled? failed to start?), open tcp/22 ingress on the shared SG and
add a guest-SSH diagnostic via the IGW NAT path. The diagnostic dumps
the unit state, port listeners, /var/lib/httpd, cloud-init result.json,
cloud-init logs, and the instance-id semaphore directory.

* test(e2e/reboot): always run guest SSH diag in phase 8

Last run passed after adding tcp/22 SG ingress. Two possibilities to
distinguish: (a) responder was running all along but blocked at the
OVN/SG layer, (b) responder wasn't running and HC was satisfied by some
other path. Capture in-guest unit + cloud-init state on every run so we
can confirm which without needing the test to fail.

* refactor(e2e/single): migrate VPC group to EnsureDefaultVPC [skip ci]

Bead 3a of mulga-siv-120 (e2e-single-fixture-migration). Replaces the
"discover default VPC + cache on Fixture" pattern in vpc_test.go,
natgw_test.go, securitygroup_test.go with harness.EnsureDefaultVPC.

- Adds Harness *harness.Fixture field on single.Fixture; constructed in
  TestSingleNode alongside AWSClient. Parent test for memoized Ensure*
  resources is TestSingleNode itself.
- Removes fix.DefaultVPCID / fix.DefaultSGID / fix.DefaultSubnetID reads
  in the three target files. Fields stay on the struct until 3e+3h
  migrate the instance / datapath / umbrella sites.
- Custom VPC graphs created by phase8b (10.99.0.0/16) and the bastion
  graph in phase8d remain inline — those are the resource lifecycle
  assertions, not prereqs.

CI gate skipped per dev request — full single-node suite verifies when
upstream main is unbroken.

* refactor(e2e/single): migrate Phase 3 key pair to EnsureKeyPair [skip ci]

Bead 3c of mulga-siv-120 (e2e-single-fixture-migration). Phase 3 now
calls harness.EnsureKeyPair for the primary key pair (Phase 5+ prereq).
The Ensure* path owns the create assertion (PEM shape), memoizes across
phases, and registers TestSingleNode-scoped cleanup — replacing the
former TODO(stage-G) deferred-cleanup marker.

- Drops hardcoded "test-key-1" name; EnsureKeyPair uses scratch-suffixed
  name so parallel CI runs don't collide on the namespace-flat AWS key
  pair name.
- fix.KeyName / fix.KeyPath still assigned for downstream Phase 5+
  readers. Per 3e migration plan, those reads move to in-test
  EnsureKeyPair calls and the Fixture fields drop with 3h.
- Import / describe / delete dance for test-key-2 stays inline — it is
  the lifecycle assertion for the import path, not a prereq.

* refactor(e2e/single): migrate Phase 4 + 5e AMI paths to EnsureAMI [skip ci]

Bead 3d of mulga-siv-120 (e2e-single-fixture-migration).

- Phase 4 (image_test.go): discover catalog AMI by canonical name, then
  route through harness.EnsureAMI({Existing}) so the state-available
  wait + memoization live with the fixture.
- Phase 5e (createimage_test.go): replace inline CreateImage block with
  harness.EnsureAMI({CreateFrom}). The custom AMI build now memoizes,
  registers DeregisterImage cleanup at TestSingleNode exit, and reuses
  the harness state poll.

Harness fix: extend AMICreateSpec with NoReboot bool — Phase 5e bakes
the AMI while leaving the source instance running for Phase 6/7
lifecycle assertions; Bead 2 missed this option.

fix.AMIID / fix.CustomAMIID / fix.CustomAMISnapID stay on Fixture for
downstream Phase 5/6/7 + Phase 9 cleanup. Those reads migrate with
3e/3h.

* refactor(e2e/single): migrate Phase 5 instance lifecycle to EnsureInstance [skip ci]

Bead 3e of e2e-single-fixture-migration.

- phase5_LaunchInstance: provision via EnsureInstance + re-describe for
  BDM/root-volume extraction; default VPC via EnsureDefaultVPC.
- phase8e_SGToSGDatapath: replace inline DiscoverDefaultVPC with
  EnsureDefaultVPC. createSG / runSGEInstance take vpcID/subnetID
  arguments so phase 8e no longer depends on fix.Default* fields.
- runSGEInstance stays direct RunInstances: phase 8e VMs are test
  subjects (need fresh ENI/private-IP per run), not memoized prereqs.
- harness.EnsureInstance memo key now includes InstanceType, SGID, and
  UserData hash — a second call with a different SG would have silently
  returned the first instance ID (Bead 2 bug).

* refactor(e2e/single): migrate Phase 5b/5c volume + snapshot to Ensure* [skip ci]

Bead 3f of e2e-single-fixture-migration.

- phase5b_VolumeLifecycle: create+wait via EnsureVolume; subsequent
  modify/attach/detach/delete stay inline (test subject lifecycle).
- phase5c_SnapshotLifecycle: create+wait via EnsureSnapshot. Drop the
  create-response State/Progress shape assertions — after EnsureSnapshot
  the snapshot is already "completed", and the describe block below
  re-asserts VolumeId / VolumeSize / Description.
- harness.EnsureSnapshot now takes SnapshotSpec{VolumeID, Description}
  so callers can pin a description (snapshot_test asserts on it). Memo
  key includes description hash so distinct-description calls do not
  silently collide on the volumeID prefix.

* refactor(e2e/single): isolate IAM stage E via parent-scoped cleanup [skip ci]

Bead 3g of e2e-single-fixture-migration.

- harness.Fixture: add RegisterCleanup helper that wraps fx.parent.Cleanup
  so test code can register parent-scoped teardown for resources created
  outside ensureOnce (IAM users / policies threaded across phase
  subtests). Registering on the calling subtest would tear down before
  the next dependent phase ran.
- phaseIAM1_UserCRUD: register parent-cleanup for alice/bob/charlie.
- phaseIAM4_PolicyCRUD: register parent-cleanup for the 5 test policies.
- IAM stage no longer relies solely on phaseIAM7 to clean up after a
  mid-stage failure; phase 7 still runs and now serves as an idempotent
  post-cleanup assertion.

No new Ensure* helper: IAM resources have no memoization story (users
and policies are test subjects, secrets only returned once on create).
IAM phases also have no EC2 prereqs, so EnsureDefaultVPC / EnsureInstance
are not applicable here.

* refactor(e2e/single): drop dead Fixture fields after Ensure* migration [skip ci]

First half of bead 3h. Removes per-phase Fixture fields with zero
remaining readers after bead 3a-3g:

- DefaultVPCID / DefaultSGID / DefaultSubnetID: superseded by
  harness.EnsureDefaultVPC (3a wired phase8b/8c/8d/5f; 3e wired phase5
  + phase8e).
- OVNAvailable: never assigned anywhere — leftover from the bash port.

Phase fields still in use (AMIID, InstanceID, IAM*, etc.) stay until
the umbrella TestSingleNode is replaced with top-level Test* + package-
level fixture singleton in the second half of 3h.

* refactor(e2e): add process-mode Fixture + TestMain singleton infra [skip ci]

Second half of bead 3h. Lands the infrastructure required to dismantle
the TestSingleNode umbrella in a follow-up bead, without changing the
umbrella body today.

harness.Fixture changes:
- NewProcessFixture(aws) builds a Fixture with no *testing.T parent.
  Cleanup callbacks queue on an internal LIFO drained by Close() —
  intended to be invoked from TestMain after m.Run(). Lets a singleton
  fixture span every top-level Test* in a package.
- Existing NewFixture(t, aws) unchanged; cleanups still route via
  t.Cleanup. registerCleanup() and logf() helpers fork on parent==nil
  so ensureOnce and RegisterCleanup work in either mode.
- TestProcessFixture_CloseRunsCleanupsLIFO covers Close ordering,
  one-shot semantics, and the no-op second-Close path.

single/main_test.go additions:
- TestMain owns process-level lifecycle: drains pkgFix.Harness.Close()
  and removes pkgFix.TmpDir after m.Run().
- requireSingleNodeFixture(t) returns the package-scoped singleton,
  building it lazily on first call. Skips when SPINIFEX_E2E is unset
  or mode != single; fails on construction error. Currently
  unreferenced — TestSingleNode keeps its own per-test Fixture for
  now. The helper exists so the follow-up bead (per-phase top-level
  Test* migration) has a stable API to call from day one.

Deferred to follow-up bead: extract Phase 4 AMI-name discovery + Phase
2 InstanceType/AZ selection into harness helpers so each phase function
can self-bootstrap, then promote phase subtests to top-level Test* and
delete the TestSingleNode umbrella.

* fix(e2e/harness): EnsureDefaultVPC filter name is-default not isDefault

Daemon rejects the camelCase `isDefault` form with 400
InvalidParameterValue. AWS CLI / DiscoverDefaultVPC use `is-default`.

Surfaced as Phase 5_LaunchInstance fatal in CI run 26140908505 —
cascade-failed every downstream phase that needed fix.InstanceID.

* fix(e2e/single): phase8 8j/8k probe fix.KeyName not hardcoded test-key-1

Bead 3c migrated phase 3 to harness.EnsureKeyPair which produces a
scratch-suffixed name (e2e-key-<random>), not the literal "test-key-1"
the bash port used. 8j_CreateKeyPairDuplicate / 8k_ImportKeyPairDuplicate
kept the old name and so created a fresh key pair instead of triggering
InvalidKeyPair.Duplicate — surfaced as the only two FAILs in CI run
26143227369 (everything else green after the EnsureDefaultVPC fix).

Read fix.KeyName (set by phase3_KeyPairs) so the probe hits the staged
primary key. Header comments updated to match.

make preflight diff-coverage against origin/dev fails at 57.9% due to
unrelated commits inherited from the recent rebase onto
feat/e2e-go-harness; against the fork base the diff is 0 instrumentable
lines (test-only change).

* refactor(e2e/single): dismantle TestSingleNode umbrella, per-phase self-bootstrap

mulga-siv-121. Each phase from run-e2e.sh now runs as a top-level Test*
in tests/e2e/single, runnable in isolation via `go test -run TestX`.

Highlights:
* TestSingleNode umbrella removed. Phase ordering dropped — each Test*
  self-bootstraps prerequisites through harness.Ensure*/harness.Discover*
  + the new package-local need*/iamEnsure* helpers.
* Fixture shrunk to {Env, AWS, Harness, Artifacts, TmpDir, PoolMode}.
  Every per-phase resource ID now lives on harness.Fixture via
  EnsureKeyPair/EnsureAMI/EnsureDefaultVPC/EnsureInstance/etc.
* TestMain owns the package singleton Fixture; harness.Fixture.Close
  drains every cleanup at process exit. phase9 + phase9a (in-line
  teardown) deleted; phase9b retained as TestFinalClusterStats.
* IAM Test* share state via sync.Once-gated helpers in
  iam_helpers_test.go (alice/bob/charlie users + keys + admin account).
* New harness/discover.go: DiscoverDefaultAZ, DiscoverNanoInstanceType,
  DiscoverUbuntuAMI — memoized on the Fixture and routed through
  EnsureAMI so any Test* can resolve them without phase coupling.
* New tests_test.go: descriptive top-level Test* wrappers
  (TestVPCSubnetE2E, TestKeyPairs, TestSnapshotLifecycle, …) that
  delegate to phaseN_X(t, requireSingleNodeFixture(t)).

* test(e2e/reboot): SSH as ec2-user, dump unit + network-online state

spinifex's cloud-init template hardcodes Username="ec2-user"
(handlers/ec2/instance/service_impl.go:1218) regardless of AMI,
so even on Ubuntu the SSH-injectable account is ec2-user, not
ubuntu. Switch the diag SSH-in to ec2-user so we actually get
in (was "Permission denied (publickey)").

Add diagnostics to distinguish the two leading post-reboot
hypotheses: (a) viperblock write loss = unit file gone vs
(b) network-online.target never fires = unit stuck on
After=network-online.target. New dumps: unit file content +
enable symlink, network-online.target status, networkctl,
ip addr / route, prior-boot journal grep for the responder.

* fix(e2e/single): resolve admin account ID before TestIAM7 deletes alice

iamEnsureAdminAccountID probes via GetUser(alice). TestIAM7_Cleanup
deleted alice/bob/charlie first, then called the helper at line 808 —
NoSuchEntity if IAM7 was the first IAM test to run (no memoized
account ID). Move the call above the deletion loop.
2026-05-20 21:04:13 +10:00