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8e11908dfbb32cb78ca6c5001802f282d8e9551a
2208 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 Josh Siviour
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8e11908dfb |
fix: make the EKS control plane's disk latency observable, and give it room to run (#1009)
* fix: report CPU and memory pressure in the EKS control-plane health diagnostic An unhealthy control plane reported readyz, etcd reachability and etcd-disk free space. When etcd goes unreachable with disk:ok and no OOM kill, that set cannot distinguish a starved guest from a genuine etcd fault, so add the loadavg and MemAvailable that separate them. An empty /readyz body also rendered as readyz:[none], which reads as "no subcheck failed" when it means the probe never answered. Report that as unreachable instead. * fix: sample the node's load, not just the runner host's Every runner agent runs on one host while their nodes sit on several, so the existing sample measured the runner's host and was labelled as the hypervisor. It happens to coincide when the node is on that same host and misleads otherwise. Relabel it and add a node-side sample, which is where the guests are actually scheduled and so where a starved guest shows up. * feat: build the mkosi EKS image in CI and give its control plane telemetry The Ubuntu/systemd EKS image is what customers run, and nothing built it: the composition existed in mkosi-build.sh's image_profiles table but had no caller, so a change that broke it was found by hand or not at all. Cell-25 builds the Alpine image, which leaves the published one with no gate. Add a Makefile target beside the Alpine one and a job in the existing path-filtered image workflow. The guest also collected nothing. k3s has served embedded-etcd metrics on 127.0.0.1:2381 since the daemon started setting etcd-expose-metrics, and no collector ever read them, so an etcd stall was only ever visible as "etcd:unreachable" in the state report — which cannot separate a slow disk from a dead one. Ship otelcol-contrib pinned to the version the cluster hosts already run, scraping etcd and guest host metrics. The unit is gated on ConditionPathExists for its endpoint file rather than started unconditionally: whether the control-plane guest can reach the sink from the isolated CP VPC is unverified, and a collector with nowhere to export is a restart loop, not telemetry. * fix: report etcd fsync latency in the control-plane health diagnostic disk:ok measures free space, which says nothing about how long a write takes. etcd stalls on fsync latency long before it runs out of room, and this guest's disk is an EBS volume served by viperblock, so a fsync is a network round trip. An unhealthy control plane reporting healthy memory and disk was uninterpretable without it. Derived from the histogram's sum and count rather than a bucket percentile: two greps against an interpolation this script has no business doing, and the difference between a healthy single-digit reading and a stalled one is an order of magnitude, not a tail. Rides the state report's existing gateway path, so it needs no route the CP VPC does not already grant, and lands on both images because the script is shared. The scrape's failure is guarded explicitly. Under set -e a bare assignment from a curl against a port nothing answers aborts the whole diagnosis, dropping the reason field exactly when it is wanted. * feat: publish etcd fsync on every control-plane report, not only failing ones A figure that appears only once the apiserver is already unhealthy has no baseline to be read against, which is the same gap a passing cell that uploads no journal leaves: the number is unanchored when it finally arrives. Move the scrape into its own helper, emit it on healthy reports too, and carry it as a typed field rather than only inside the reason string. Slowness is logged, never gated. observe() decides cluster health, and a working cluster on a slow disk is working — returning an issue there would fail customers' clusters on a latency threshold. The warning is latched on the transition instead, because the control plane republishes on its own timer and a line every interval is how a real signal gets tuned out. An absent sample is not a fast one. Too few fsyncs to average, an etcd serving no metrics and an older AMI all arrive as nil, and the field is omitted rather than defaulted so none of them can be read as healthy. The minimum sample count is the same lesson as the slow-shard floor: a mean over three fsyncs on a just-started etcd is a number with no meaning. * fix: log an etcd fsync baseline and name the two no-sample cases apart A healthy cluster logs no health lines, so the fsync figure reached the daemon on every report and was never surfaced — a passing cell left nothing for a later slow reading to be compared against. Log the first known sample. Split the "unknown" sentinel into nometrics (etcd served none) and warmup (too few fsyncs to average): different faults, different fixes. The payload guard now tests for a number rather than the sentinel word, so a future sentinel cannot leak into the JSON as a bare value. * feat: measure fdatasync latency in the diskperf gate The two pinned profiles are buffered-bypassing throughput jobs at queue depth 32. Neither measures the cost of making a write durable, which is what a consensus datastore pays per raft entry and stalls on long before it runs short of bandwidth. A 5ms barrier on bare metal went unseen as a result. syncwrite-4k is the etcd-shaped profile: sequential 4k, queue depth 1, fdatasync every write, buffered psync so the sync has a page cache to flush. fio reports the sync distribution apart from the write stream, so the parser reads it separately — gating on write clat would score the time to reach the cache and call it durability. No figures captured on this hardware yet, so the baseline entry is zero and the job records without gating. * fix: use the real otelcol checksums asset name in the EKS server image The checksums file is named for the release repo and the distribution and carries no version, unlike the tarball beside it. The guessed name 404'd and took the image build with it. * fix: extract otelcol as root in the EKS server image The upstream tarball records its build uid (runner/docker, 1001:118), which does not exist in the image. tar running as root tries to restore it and fails outright rather than degrading, taking the build with it. --------- Co-authored-by: Ben Duncan <5178243+benduncan@users.noreply.github.com> |
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Julian Sommer
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a1a46c6402 | fix: remove component from feature request | ||
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Julian Sommer
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f58d5ee2e8 | fix: remove unneeded security report in issue | ||
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Julian Sommer
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612c66c73c | fix: add SECURITY.md | ||
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Julian Sommer
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4be30b28f1 | fix: add ISSUE_TEMPLATE | ||
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Julian Sommer
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f9d72d9487 | fix: ui test warnings | ||
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Julian Sommer
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b435b858e4 | chore: update pnpm | ||
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Julian Sommer
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0d8855d1aa | fix: authorize EC2 PassRole against the stored role ARN (#1008) | ||
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Julian Sommer
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e4f0050a1a | fix: update COMMANDS.md with systemctl commands | ||
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Julian Sommer
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8d8f020ed3 | fix: update COMMANDS.md | ||
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Julian Sommer
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6f5cb9dfaa | fix: lint issues | ||
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dependabot[bot]
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63393fea72 | chore: bump the npm-dependencies group (#1006) | ||
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dependabot[bot]
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7d639cf283 | chore: bump the go-dependencies group with 6 updates (#1005) | ||
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Ben Duncan
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18853cef31 |
fix: close the four defects keeping the e2e nightly red (#1007)
* fix: stop the e2e analyser inventing failures and let a detach outlast its seal go-junit-report emits <error message="No test result found"> for a === RUN with no matching result line, and attaches the test's own captured log as the body. The analyser counted those as failures, so the baremetal cell reported 25 failures against a junit file recording 1, with log output reading as assertions. Separate the marker from a real error in both the parse and the roll-up, count the unresolved cases and say so in the summary. The gateway gave a detach 30s while the daemon budgets 180s for the ebs.unmount seal and 180s more for the QMP unplug chain, so any detach whose seal replayed a WAL was reported as ServerInternal while it went on to succeed. Also switch four nightly job gates from always() to !cancelled(): always() overrides cancellation, so a cancelled run kept starting jobs. * fix: serialise the e2e workflows on one group and retry a dropped libvirt e2e.yml had no concurrency block at all, so every push to dev could provision alongside every other push and alongside the nightly. All four workflows that build on these hypervisors now share e2e-hypervisors, queued rather than cancelled. A per-environment group is not expressible: GitHub picks the group before it picks a runner, and the environment is a property of the runner. tofu apply also failed outright on a transient libvirt connect, which fails a 45-minute job in 90 seconds and reports it as a test failure. retry_run retries only when that attempt's own output names a connection failure, so a real failure still fails once. Also collect the unfiltered journal from the matrix cells and the node journal from cell-21: the unit filter drops the kernel and OOM lines that explain why one node behaved unlike its siblings, and a passing run's journal is what makes a failing one readable. * fix: build the baremetal junit from the unfiltered suite log run-baremetal-e2e.sh streams the full suite output to suite-output.log and a grep-filtered summary to its stdout, which the workflow tees into test-baremetal.log. That filter anchors --- PASS at column 0 and Go indents every subtest result by four spaces, so the junit was generated from a log with no subtest results in it: go-junit-report saw each === RUN with no outcome and emitted <error message="No test result found">. 17 of cell-28's 39 testcases and 93 of cell-20's 120 were that. Regenerating cell-28 from suite-output.log gives 39 tests, 0 failures, 0 errors. * fix: converge released EIPs instead of trusting a fire-and-forget teardown A disassociate leaves the ENI running, so the orphan sweep's owning-port test never fires for it. The teardown then rests entirely on vpc.delete-nat, which is core NATS and is lost whenever vpcd is restarting — and the intent KV watch is UpdatesOnly, so the same window hides the write that would have driven a repair pass. The dnat_and_snat row and its host /32 route to a released public address survived until something else happened to touch them, which for a live ENI was nothing at all. Give the sweep the second test it was missing: AddEIP is the only writer of dnat_and_snat, so the floating IPs intent asks for are the complete set of addresses that may hold one, and a row for any other address is stale however alive its port. Ports and external IPs travel together in LiveEIPs, both unioned from the start-of-pass snapshot and the fresh re-read, so a mid-pass launch is still spared. The host unbind now runs even when the row had already gone, which is the state a crash between the OVN delete and the unbind leaves. Run that sweep on the startup pass too. Startup is the pass that follows the blind window, so skipping it deferred repair of exactly the changes that were missed. The port-group and ENI-port sweeps stay gated there for the in-flight create they were written for; the EIP sweep re-reads intent immediately before deciding and abandons the whole sweep if that read fails, which is the same protection by a stronger route. * fix: keep a release verify off the hypervisors an e2e run is using release.yml is the fifth workflow that provisions on the ci-single pool and had no concurrency block at all, so a tag push could land a tofu apply on the same libvirt host a nightly cell was mid-provision on. The group goes on the verify job rather than the workflow: the build jobs touch no hypervisor and should not queue behind a nightly. * fix: stop cell-27 handing a 50-minute suite a 50-minute job The rds suite is budgeted 50m in suite-sets.sh and cell-27 took the matrix default of 50 minutes for the whole job, so provisioning, install, the suite and teardown had to fit inside the suite's allowance alone. It never could: the last measured run spent 6 minutes reaching the suite and was killed 44 minutes into it, mid-TestAutomatedBackups. A job timeout reports "The operation was canceled" and nothing else, which is why this cell has no verdict in any nightly rather than a failure anyone could read. cell-27 gets 75 minutes, and the select job now refuses to start a run whose job budget does not clear its suite budget plus a setup allowance. The inner timeout firing first is the property that matters: go test says where it stopped and what failed, and the job timeout says nothing at all. cell-29 already had the same fix applied by hand; nothing stopped the next suite from repeating it. * fix: converge host EIP plumbing against intent, not against the NAT row The released-EIP sweep landed and did not fire. Its premise was that a stranded dnat_and_snat row is what a stranded host route can be found by, and on the path that actually strands one there is no row left. AddEIP scrubs the predecessor row sharing the private IP before installing the new one, so when reconcile re-added the instance's auto-assigned address it silently deleted the released EIP's row — and applyEIPs runs ahead of the sweep, which then walked a table with nothing stale in it while the /32 route and its proxy-ARP stayed up. Give the sweep the host's own inventory. ListEIPIngress reads the EIPs back from the FORWARD accepts EnsureEIPIngress stamps with its own comment, so a binding is found by what installed it rather than by a row some other path is free to delete. Anything plumbed that intent no longer asks for is torn down, which also covers a crash between the OVN delete and the unbind. A failed inventory fails the pass: an empty list and an unreadable one are indistinguishable, and reading the second as the first is a sweep that reports success having done nothing. Close the window inside the pass too. The predecessor scrub now reads the row it is about to drop and releases that address's host state, so the strand does not exist between applyEIPs and the sweep rather than merely being repaired a step later. * fix: retry the release verify's libvirt calls like every other job does The verify job drives the same libvirt provider on the same hypervisors as the e2e cells, where a dropped connection under concurrent load is the steady state and is retried. Here it was a hard failure that reads as a broken release. It was skipped earlier only because the job checks out mulga and not spinifex, so the shared helpers were not on disk — a sparse checkout of .github/scripts costs nothing and makes apply and destroy behave like their e2e counterparts. * fix: do not report a rebooting DB instance available on the pre-reboot agent's health RegisterDBInstance stamped a fresh LastSeen while leaving Agent.EngineHealth at the value the previous agent process reported. After a reboot the new agent registers before it has probed anything, so the record read as a healthy engine with a beat newer than the transition, and the reconciler moved the instance to available while PostgreSQL was still starting up. A client that connects the moment the status turns green then gets "the database system is starting up". A register now discards the previous process's verdict and records when this agent process started. The restart reconciler requires that registration to be newer than the transition, which also closes the window where a beat lands between the engine being stopped and the VM going down. * test: record the credential kubectl sent when an EKS call comes back Unauthorized The IRSA pod subtest's first kubectl is the gateway-CA configmap, which lands before the pod dumps are registered, so a 401 there left no evidence at all. A verbose read-only probe reports whether an Authorization header was sent, which separates a token the apiserver rejected from one the exec plugin never made. * fix: report a starting engine promptly, and budget CI jobs from the suite The agent waited a full heartbeat interval before its first beat, so a restart could not be observed as finished for up to 30 seconds after the engine was already serving. Beat at startup instead, and report every 5 seconds until the engine has answered once — the control plane is actively waiting on that beat, and the steady-state cadence it hands back is for a database already serving. The rds suite is the one most sensitive to what else the hypervisor is doing: its DB VMs serialise behind a 4 GiB semaphore, so its wall clock is set by how long it waits for the budget. The same pass ran 45m beside four nightly cells and overran 50m beside nine, panicking with two tests still running. Raise its budget to 60m. That budget was then larger than the jobs meant to contain it. A job cancelled on timeout reports only "The operation was canceled" and takes the artifacts with it, so the inner `go test` timeout must always fire first — and it could not for rds on e2e.yml, nor for storagefault or diskperf, which have asked for 90m and 180m inside a 60m job since they were added. Both workflows now resolve their job budget from suite-sets.sh rather than carrying a literal: e2e.yml from the largest requested suite, e2e-suites.yml per matrix leg, so a leg is bounded by its own suite and not by the longest one beside it. The default push set resolves to exactly the timeouts both workflows had before. * fix: check a permutation cell's job budget against the suites it runs The guard only saw cells that name a suite, so the nine that run a topology's nightly subset were never checked against it — the same class of mistake the guard exists to catch, in the majority of the cells. Bound each by the longest suite in its subset: max() and not sum(), because whichever suite hangs must panic on its own timeout first, and a sum would demand a budget the set has never come close to using. Every cell clears it today. * fix: report why a PostgreSQL engine would not start, and stop failing a stop that landed Three defects, all found by the first rds pass that ever ran deep enough to reach them. A wait that saw an instance reach `failed` called t.Fatalf from inside the polling condition, and testify runs that condition on its own goroutine. The Goexit killed the tick and left the collector empty, which reads as the condition being satisfied — so the wait returned successfully on an instance it had just declared broken, logged "reached status available" about one that was failed, and let the test carry on against it. Six conditions across four suites call Fatal or require the same way. EventuallyErr now runs its condition on the test's goroutine, which makes all six behave as written. A DB VM stop has two drivers: the API call and the reconciler resuming one whose caller it assumes has died. When they overlap the loser is told the VM is not in a state to be stopped — which is the state the stop was heading for — and the customer's StopDBInstance returned InvalidDBInstanceState for a stop that had just completed. Both paths now treat a refused command the way they already treat an unanswered one: it says nothing about the VM, so the fleet view settles it. PostgreSQL had no equivalent of the engine log tail MariaDB has carried since it was added, so a postmaster that refuses a setting produced "engine did not respond on /run/postgresql:5432" and nothing else — on a guest with no SSH, whose console records only that pg_ctl could not start the server. The probe now quotes the tail of the log the image already directs the postmaster to, and the reboot and modify paths carry the agent's reason into the failure the way the create path always has. The reason reaches the customer through StatusInfos. The rds suite's budget goes to 90m and cell-27's job to 100m. Its wall clock is what the DB-VM queue costs rather than what the tests do — single tests logged 11m, 22m and 26m waiting for budget — and the pass above still had three of seventeen tests running at 60m. * fix: keep a DB VM recoverable when its agent cannot start, and flush the volume before a snapshot An rds-agent that failed to construct exited, so a transient IMDS credential resolution took the guest down for good: rds-datadir and rds-init cascade on the missing handoff, the engine never starts, and the control plane sees only silence until it declares the instance failed ten minutes later. Construction is retried like every other boot step instead. OpenRC skips start_post when the start itself fails, which is the one case with no diagnostic at all — the console carried nothing but "died". The log mirror moves out of the handoff wait so a failed start uses it too. A snapshot quiesced the engine and nothing else. The engine repairs its own files from the WAL, but postgresql.conf sits beside them and it does not: a restore came up on a torn tail and the postmaster stopped on a syntax error at the unterminated include hook. The quiesce now flushes the whole data mount, and the hook is renamed into place rather than appended, so a boot that finds a half written one replaces it instead of appending after its open quote. * fix: flush the config cloud-init wrote before a reset can take it A DB instance rebooted seconds after it went available came back with no RDS_GATEWAY_URL, so rds-agent could not reach the control plane and the engine never started. cloud-init writes agent.env once, per-instance, and never again; a reboot is a QMP system_reset with no guest shutdown, so the file was still dirty page cache when the machine reset under it and the next boot read nothing. The handoff wait now syncs, which is the point at which the agent has proved it read that file. * fix: stop dropping an EIP teardown published while vpcd is restarting DisassociateAddress publishes vpc.delete-nat fire-and-forget. On run 34046316024 vpcd disconnected from NATS at 03:51:26.73 and its replacement subscribed at 03:51:27.09; the publish landed at 03:51:26.92, in the gap, and went nowhere. ReleaseAddress then returned the address to the pool two minutes later with its /32 host route still delivering to the guest that had held it. vpc.delete-nat now uses request-reply like vpc.add-nat, and retries only on no-responders — which returns immediately, so the cost is paid solely when nothing is listening. A teardown that still fails is logged as an error naming the address rather than lost silently. Neither is fatal to the caller: the reconciler's orphan sweep remains the backstop. vpc.add-nat on the EIP path stays fire-and-forget. The shared helper blocks it on the flows barrier for up to 45s, and associating an address should not inherit that. Two reconcile passes in that run had the address absent from intent and did not sweep its host route, and the journal cannot say why: the sweep logged only when it acted, so a route it kept was indistinguishable from one it never saw. It now logs the bindings it found, kept and wanted. * ci: render one run-level table for the e2e nightly Reading a nightly meant opening nineteen jobs, and the Actions UI does not separate a cell that failed from one cancelled out from under it — a distinction every investigation of this suite has needed, and one the run 34046316024 analysis had to reach for the jobs API to get. A final job, needs: every cell and if: always(), renders cell, topology, result, duration, runner and per-cell test counts into the step summary, with run-level totals, the three slowest cells and the failing test names. Result, duration and runner come from the jobs API so a cell that died before writing junit still gets a row. Counts come from a new junit-only artifact per cell rather than the full cell artifact, so the roll-up does not pull nineteen journals it has no use for. Verified against run 34046316024: 14 success, 2 cancelled, 1 failure, with the two cancellations shown as cancelled rather than folded into failure. * fix: assert EC2's actual EIP semantics, and probe EKS auth on an authenticated path natuplink asserted that an instance's auto-assigned public IP is still plumbed after an EIP associated to the same instance is torn down. EC2 does the opposite: associating an EIP releases the auto-assigned address back into the pool, and it cannot be reused. Our datapath already does that — run 34059879666 shows 192.168.0.72's ingress removed at 07:09:44.000, 36ms before .73's was installed — so the test was asserting behaviour neither AWS nor we have. It now asserts the release at the point it happens, and that no public delivery remains after the teardown. This surfaced only once the teardown itself started working: the run's other assertions passed, including .73's removal, which was the failure before. Our records still disagree with our datapath — the ENI keeps the released address, which is why termination tears the old one down twice and never the current one. That is the remaining half of mulga-7zc9w and is not fixed here; it needs an IPAM release on the associate path. Separately, AuthDiagnostics read /version, which is anonymously readable, so its 200 was consistent with both branches it claimed to distinguish. It now runs auth whoami, reads kube-system, and invokes the credential plugin directly, reporting exit code, stderr and whether a token was produced — never the token, since CI logs outlive it. * test: capture per-guest state when a spread guest never answers SSH TestMultinodeSpread's only failure dump is dumpPlacementNATDiag, which collects OVN, OVS, ARP and route state aimed at the NAT and EIP half of the test. The failure it actually hits is a guest that never accepted SSH — run 34040324968, the guest on node3 at 10.100.2.5 — and for that it recorded no console, no port binding and no tap state. There was no way to tell from the artifact whether the guest booted at all. Now dumps, per guest: the console, the NB logical switch port, the SB port binding, the OVS interface backing its tap, and br-int's port list. Probed on every node rather than the expected one, because a port bound on the wrong chassis is exactly what a hosting-node-only dump cannot show. Covers all three guests, not just the failing one, so a working guest is available as the control. * ci: sample hypervisor load either side of every cell Eight runner names map onto three hypervisors, so cells that never share a runner still share a host: when cell 10's SSH wait expired on run 34040324968, cells 22, 17, 18 and 28 were concurrently live, two of them multi-node. Nothing in the artifacts measured host load, which left co-tenancy as an explanation that could be neither confirmed nor ruled out. Records loadavg, MemAvailable, SwapFree, the cpu line carrying steal, and the QEMU process count before and after each cell, into the cell artifact. * ci: note that main's missing concurrency block is why the nightly runs ungrouped Three refs carry three different groupings: main has no concurrency block at all, dev uses e2e-nightly, this branch uses e2e-hypervisors. Scheduled runs load the workflow from the default branch, so every cron nightly runs ungrouped and cannot queue against anything — which is how a dispatch of 34050630627 ran alongside the scheduled 34046316024 and cost it cells 24 and 27. e2e-hypervisors is the right group and deliberately broader than dev's, since e2e.yml, e2e-suites.yml and e2e-ddil.yml draw on the same runner pools. Nothing on a feature branch can fix this; the block has to reach main. |
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Ben Duncan
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c2aad92044 |
fix: stop the detach seal, EIP teardown and key-pair races failing the nightly (#1003)
* fix: stop the detach seal, EIP teardown and key-pair races failing the nightly
Four independent faults the full-suite nightly surfaced, each of which had
been masked while the heavy cells were skipped.
unmountVolume SIGKILLed nbdkit the moment the request arrived. Removing the
guest device has already started the plugin's own Close, which drains to the
backend and leaves a seal receipt, so the kill landed 61ms into that flush and
threw it away — the receipt path never fired once across a whole run. What was
left was 74 orphaned WAL files for the fallback seal to replay, which ran past
the caller's 180s deadline and returned DetachVolume ServerInternal with the
volume still attached. It now terminates gracefully first, bounded by the
plugin's own drain budget, and only escalates if that does not take.
DeleteEIP returned early when the dnat_and_snat row was already absent, before
the neighbour flush and the host unbind. An absent row is not a reassignment —
nobody owns the address — so the /32 route and proxy-ARP entry were orphaned
and a disassociate left the address still answering from the host. The
reassignment cases keep their early return.
EnsureKeyPair was not atomic: a failure after CreateKeyPair left the pair on
the cluster with no cleanup registered, so every later caller failed with
InvalidKeyPair.Duplicate in a test that never ran. The describe that follows a
create also had no tolerance for the propagation window on a multi-node
cluster; it now retries, and still reports a duplicate the moment it sees one.
An admission refusal could not name its cause. The static vCPU/memory budget
and the live MemAvailable clamp both surface as InsufficientInstanceCapacity,
and they have different fixes; the subscription transition now records which
gate closed.
* fix: identify the default-deny by priority, not by being a drop
DenyIsNotEthertypeScoped bucketed every drop ACL by direction, so the last one
seen won each direction. The platform WAN egress block added at priority 1049
is also a drop and is legitimately ip4-scoped, so it displaced the default-deny
in the map and the assertion fired on its qualifier instead:
from-lport deny on sg_c94870c0d68288dc6 is IPv4-scoped:
"inport == @sg_c94870c0d68288dc6 && ip4 && ip4.dst != {10.0.0.0/8, ...}"
Select the two default-denies by their own priorities. What the test asserts is
unchanged — the default-deny still must carry no ethertype qualifier, for the
reason denyIngressACL states: OVN allows on no-match, so an ip4-scoped deny
lets every other ethertype through.
* fix: drain every EIP on an ENI at teardown, not just the first
findByENI returned the first matching record and stopped, so an ENI holding
more than one EIP had all but one left marked associated to an interface being
deleted — with the host route still installed and no record left naming the ENI
to find them. Teardown now clears them all.
* ci: serialise e2e-nightly runs so two do not share the hypervisors
Only iso-single and iso-multi were guarded, by the iso-qemu-rack group. Every
other job could overlap a second run of the workflow, with both sets of cells
building clusters on the same five hosts. Queue rather than cancel: a dispatch
is usually a verification run whose result someone is waiting on.
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Ben Duncan
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ac5daa56ab |
fix: make cell-24 able to pass — nvme work root and a realistic timeout (#1002)
* fix: point cell-24 stress work root at the runner nvme The fault-injection harness ignores TMPDIR for large-object and multipart-upload, defaulting them to $HOME/.cache/predastore-e2e because TMPDIR is commonly tmpfs. On this runner $HOME is a 110G root disk with 14G free while TMPDIR is a 938G nvme, so the preflight guard passed on a filesystem the scenarios that need disk never touch. Set STRESS_WORK_ROOT alongside TMPDIR and check free space on both at a threshold that covers the 1GiBx8 multipart case, so a run that would skip a size for want of disk fails preflight instead of reporting a pass with less coverage. * fix: give cell-24 room for the full thirteen-scenario stress suite The scenarios run serially and are ~35 minutes of work on their own, measured from the per-scenario predastore matrix. The job allowed 30, so it could not have passed whatever the disk did. |
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Ben Duncan
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2727f4f121 |
ci: build the nightly matrix from the selected cells, not filter inside them (#1004)
The matrix job gated all 32 of its steps on a step output. A job whose every step is skipped still completes green, so a dispatch that ran one cell reported as a nineteen-job pass and was indistinguishable in the UI from a full one. The only tell was duration: a deselected cell finished in 11-12 seconds. Every green run in the recent history is such a dispatch, and every run that actually executed the suite has failed. There was no known-good baseline; there was a display bug. A job-level if cannot fix it — matrix is not available in that context, since it is evaluated before the matrix expands. So the selection moves ahead of the matrix: a select job filters the cell table and the matrix is built from what comes back. A cell that was not selected produces no job at all, which is plainer than skipped and cannot be read as a pass. The table moves to .github/e2e-cells.json so both the workflow and the filter read one copy. |
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Ben Duncan
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7ddcac53bb |
feat: block outbound SMTP egress via platform OVN ACL (#1001)
* feat: block outbound SMTP egress via platform OVN ACL Add a platform egress ACL that drops outbound TCP to 25/465/587 for public destinations on every guest, matching AWS's default outbound-SMTP block. The control is global by default with an operator-held per-VPC exemption; tenants cannot open the ports via a security group because the block sits above the tenant-allow priority band. Private destinations are always exempt. Config exposes blocked_ports_wan (nil defaults to [25,465,587], [] disables) and egress_block_exempt_vpcs. Adds unit tests for the ACL builder, the SG manager wiring and the config resolution, plus an e2e that digs gmail.com MX and confirms a 5s SMTP connect is blocked while other WAN egress works. * docs: note the multi-node sync + restart requirement for the egress block |
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Ben Duncan
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80f522e3fc |
feat: map virtio-blk virtqueues across an IOThread pool (#963)
* feat: map virtio-blk virtqueues across an IOThread pool Boot volumes ran every virtqueue through a single IOThread. Size a pool from the vCPU count and hand QEMU an iothread-vq-mapping so the queues spread across it. Falls back to the scalar iothread= form for MMIO machines, single-queue devices and a pool of one. SPINIFEX_BLK_IOTHREADS is experiment scaffolding for sweeping the pool size without a rebuild, and comes out before this merges. * feat: name QEMU guests with debug-threads=on Config.Name held the instance ID but was never emitted, so QEMU left every thread called qemu-system-x86 and a host-side pidstat -t could not tell an IOThread from a vCPU thread. Emit -name guest=<id> with debug-threads=on, which is what libvirt does for the same reason. * refactor: drop the IOThread pool-size experiment override SPINIFEX_BLK_IOTHREADS existed to sweep the pool size on dev-prod without a rebuild and redeploy per value. The sweep is done, so the derived size is the only path and buildDrives keeps its own doc comment. |
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Ben Duncan
|
d65c4f3673 |
fix: family-qualify unscoped firewall accepts to IPv4 (#999)
The public, formation and DNS accept rules carried no address family, so on a node that autoconfigures a global IPv6 from an upstream Router Advertisement they served the console, predastore S3 gate, AWS gateway and DNS on that public address with none of the source scoping applied on IPv4. Qualify them with meta nfproto ipv4 so v6 falls to the default drop; the scoped rules are already v4-only via ip saddr. |
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Josh Siviour
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f719ce760c |
feat: report impaired status for instances on a node that stopped answering (#996)
* refactor: extract DescribeInstanceStatus selection and projection
The request semantics — the instance-ID filter, filter parsing, the visibility
check, state membership defaulting to running-only, and the status filters that
can only run against a built frame — live inside the node handler's vmMgr.View
closure, so nothing else can apply them. A second caller answering the same
request from cached records would have to restate them, and the copy that
drifts is the one no customer request exercises until it does.
StatusSelection parses the request once; StatusFor applies it to one VM and
projects, returning nil when the request does not cover it. Per-VM rather than
per-slice so the node keeps reading VM fields inside its lock exactly as before.
buildInstanceStatus takes az rather than reading s.config.AZ, because a caller
projecting another node's record must use the AZ on that record. The node
passes its own config value, so behaviour is unchanged. systemImpaired stays a
parameter: it is node-local memory pressure only an answering node can report.
No behaviour change; the twenty existing status tests pass untouched.
* feat: read node liveness from the heartbeat store
A gateway answering from cached records has no way to tell a node that is
quietly healthy from one that has died, because an idle node writes no records
and record age measures activity rather than liveness. Liveness reads the
heartbeats the daemon already publishes and judges a node stale after three and
a half missed beats.
Unknown is a distinct answer from Stale and the two must not collapse. A node
nobody has ever heard from may simply never have published, and a store the
gateway cannot reach is not evidence that anything died — both report Unknown,
and a failed read clears the previous answers rather than keeping them.
The threshold is deliberately tighter than the IPsec barrier's six beats. That
one gates a cluster encryption decision where calling a live node dead churns a
security barrier; this one decides whether to admit the control plane cannot
confirm a host, where the costly error is the opposite one. The IPsec window is
left alone. A test in the daemon asserts the publish interval and the gateway's
copy of it have not drifted, since the gateway cannot import that package.
* feat: report impaired status for instances on a node that stopped answering
DescribeInstanceStatus fans out over NATS and returns whatever the nodes send
back. A node that is down sends nothing, so its instances disappear from the
answer entirely and a dead host reads as no host.
Backfill from the instance record cache: for any cached instance no node
answered for, synthesise a status frame and mark the system status from the
heartbeat store. A stale node reports impaired; an unreadable heartbeat store
reports insufficient-data, because not knowing a host is healthy is not knowing
it is not.
A frame an answering node returned is never touched. The covered set is what
guarantees that, and it is asserted directly rather than only through the
handler, where dedupStatuses being first-writer-wins makes either guard alone
sufficient. A live node's omission is its own answer and is not backfilled, and
a cache that has not finished its first whole-set sync contributes nothing.
The zero-value StatusSynthesis disables the whole path, so a gateway wired
without a cache answers exactly as it did before.
* fix: use fan-out responder identity, not heartbeat age, to gate status synthesis
DescribeInstanceStatus previously skipped synthesising an instance whenever
its owning node's heartbeat was still live, even when that node did not
answer this particular fan-out. A node that goes down loses its instances
from the response entirely until its heartbeat crosses the stale threshold.
Switch the Gather call to ExpectedResponders so it tracks per-node identity,
and use SuccessResponders to decide whether an omission was deliberate.
Heartbeat age now only selects the label (impaired vs insufficient-data),
never whether to synthesise. Falls back to the old heartbeat-only rule when
any frame cannot be attributed to a node.
* test: tag existing status-synthesis tests with node identity
answerWith never set X-Node-ID, so every existing test in
status_synthesis_test.go silently ran down the Unidentified fallback
branch instead of the responder-set path real daemons take. Give
answerWith a node-ID parameter (reusing subscribeAsNode) and retag each
call to match the record it is about, so these tests exercise the
success-responder guard they are named for. Keep exactly one test,
via a new answerAnonymously helper, on the fallback branch deliberately.
* test: tag DescribeInstanceStatus_test.go replies with node identity
Same rot as status_synthesis_test.go: raw nc.Subscribe replies carry no
X-Node-ID, so every describe here also sat on the 3s Gather deadline.
These tests mostly pass StatusSynthesis{}, so synthesize bails at
Records == nil before the fallback branch is ever reached — the payoff
is dropping the per-test timeout, not fixing a correctness gap.
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Josh Siviour
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31eb3bc672 |
fix: fail a credential refresh instead of extending a dead key's expiry (#995)
ec2rolecreds implements aws.HandleFailRefreshCredentialsCacheStrategy, which aws.CredentialsCache prefers over returning the refresh error. When the cached credential is expired or within five minutes of expiring and the refresh fails, it hands back the same access key, secret and session token with Expires pushed a random five to fifteen minutes out, reported as a success. Every later refresh fails the same way, so ecs-agent signs with a credential the control plane has already rejected, indefinitely, and nothing surfaces it. The cache picks its strategies by asserting on the provider's dynamic type, so returning aws.CredentialsProvider from NewProvider does not disarm it. Wrap the provider in a type whose method set omits HandleFailToRefresh, and the cache falls through to returning the error. AdjustExpiresBy is forwarded on purpose: it only fires under an ExpiryWindow, which no caller sets today, but dropping it silently would change behaviour for whoever sets one. Fixed in imdscreds rather than at the one exposed call site, so a future caller that wraps this provider in a cache is safe by construction. ecr-credential-provider was never affected: it calls Retrieve uncached. Two comments claimed the hazard was ec2rolecreds capping Expires to an hour. That cap only ever shortens a too-far-future expiry and is unrelated. |
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Josh Siviour
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8c8cd11936 |
feat: record a launch before replying to the caller (#994)
* feat: time the local and KV halves of a state write separately RunInstances responds before vmMgr.Insert and WriteState, so the cost of gating the respond on the local write is measurable today: it is the ec2.RecordRunInstances span. Splitting persistState's timing by store says which half that cost is, and the summed instance count says whether the local write scales with the node's set size. Duration is a sum plus an op count rather than a histogram, because ES|QL cannot aggregate a native histogram field. * fix: count only the records a KV state write actually touched WriteRunningSet is digest-guarded and writes just the changed records, so attributing the node's whole VM count to it overstated the per-record cost. Use Written+Retired, and rename the metric to records.sum with a description that spells out the two meanings: the whole set locally, the changed ones in KV. * feat: record a launch before replying to the caller RunInstances replied with the reservation and only then inserted the records and wrote state, so a caller holding an instance ID could describe it and get nothing back, and a guest could read IMDS before this node's state file knew the instance existed. Move the reply after the insert, the state write and the per-instance subscribe loop, so by the time an ID reaches the customer the node can answer for it and a terminate issued immediately finds a responder. A local write that fails now fails the request: the file is what this node restores from, so a launch it did not record is a launch nothing can recover. The handler undoes the insert with DeleteIf and returns the capacity, rather than running instances the caller was told had failed. Measured on env19 first: the newly-serialised work is 7-23ms against a 2.3-10.8s end-to-end launch, under 1%, so no split of the state write was needed. |
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Ben Duncan
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828b5df4aa |
fix: pause a guest on a backend I/O error instead of handing it EIO (#977)
* fix: fail DRAIN when a volume seal failed
shutdownAndUnmount logged the volume unmount error and returned nothing, so
StopAll returned nil and the DRAIN phase ACKed success with vms_stopped set.
The coordinator then advanced to STORAGE and stopped viperblock while the seal
was still in flight, tearing the VBState envelope and leaving the guest unable
to mount its root volume on the next boot. The deploy reported success.
shutdownAndUnmount now returns ErrVolumeSealFailed when the unmount did not
seal; QMP, PID-file, fw_cfg and telemetry cleanup stay best-effort. stopCleanup
and stopOne carry it without aborting the rest of the teardown, since QEMU is
already down by then, and StopAll aggregates the per-VM failures so
handleShutdownDrain ACKs with Error set and never reports vms_stopped.
volumeMounterAdapter.Unmount was the second swallow site: it logged each failed
seal and returned nil unconditionally. It now attempts every volume and returns
the aggregate, which is what the VolumeMounter contract already described.
Terminate still tolerates a failed seal — the volumes are deleted next, so an
unsealed block map loses nothing a caller can ask for.
This does not fix the seal itself. It converts silent data loss into a refused
upgrade that an operator can act on.
* test: add the storagefault e2e suite for backend-outage guest survival
Freezes predastore with SIGSTOP to hold connections open while answering
nothing, which is the fault a timeout-free path cannot distinguish from a
slow peer. On one node that is a total outage; on three it freezes every
node but the guest's own, breaking the RS(2,1) shard floor.
The suite writes and flushes a verifiable region before the fault and
churns a separate unverified region during it, so an interrupted write is
never mistaken for lost data. The root-filesystem load runs from the
user's home rather than /tmp, which is tmpfs on this image and would move
no bytes on the root device.
* test: verify the root device is under write pressure, and size the outage
The previous guard matched /^ *vda / against /proc/diskstats, where the
device name is the third field, and read $7 which is ms_reading rather
than sectors_written. It printed empty and asserted nothing, so a green
run could not distinguish a surviving guest from an idle disk. It now
samples sectors_written twice and fails unless it advances.
The outage is sized from viperblock's absorption rather than guessed:
a workload must fill DefaultMaxPendingBytes before backpressure engages
at all, so a short freeze measures the retry budget rather than the fault.
* test: add nbdkit fault injection to the storage-fault e2e suite
The predastore freeze takes the whole storage cluster away from every
guest on it, which is too broad to run beside anything else. Removing a
single volume's NBD server is the same fault at one-volume scope: one
host, one guest, nothing cluster-wide stopped.
Both signals are here because they sit on opposite sides of the defect.
SIGSTOP holds the socket open and answers nothing, so the guest blocks
and no error reaches ext4. SIGKILL closes it, and QEMU's nbd driver at
the default reconnect-delay of 0 fails requests at once, which under
werror=report aborts the journal.
Signalling is guarded: a pid is matched on comm, our plugin and the
volume argument together, and re-confirmed immediately before the
signal, because these hosts run nbdkit for other volumes and pids are
reused.
* fix: pause a guest on a backend I/O error instead of handing it EIO
Every virtio-blk device was created with werror=report,rerror=report, so a
backend outage was delivered to the guest as EIO. ext4 aborts its journal on
that and remounts read-only, and the write that failed is simply gone. Under
werror=stop QEMU pauses the VM and holds the failed request, so a backend that
comes back resumes the guest with nothing lost.
The boot drive, the cold-boot data volume and the hot-plugged data volume all
move to stop. Alongside it the NBD transport gets reconnect-delay=30, which
pauses requests rather than failing them while a storage process restarts on
the same socket; on the legacy -drive form it has to be file.reconnect-delay,
because the bare name reaches the raw format driver, which has no such option.
The QMP heartbeat now recognises run state io-error and issues cont. After ten
attempts the instance is reported impaired and the cadence drops to one attempt
per ten heartbeats, but it never stops: QEMU holds the request for as long as
the guest exists, so a backend that returns an hour later can still be resumed.
The storagefault suite gains the fault this was written for — kill the volume's
own nbdkit, hold, then put it back on the same socket — and it now verifies a
sha256 region across the outage rather than trusting the guest to be reachable.
Three harness defects went with it: the socket-liveness poll ran unprivileged
against a 0770 directory and could never succeed, the relaunched socket was
left 0755 where QEMU needs group write, and the two variants shared one guest
so a fault in the first was diagnosed in the second.
* test: cover the io-error resume policy
* test: stop two parallel tests racing on the terminate backoff variable
* fix: report a guest paused on a backend I/O error as impaired
A guest held by werror=stop kept reporting ok on both status checks. QMP stays
responsive while the guest is paused -- cont is being sent and answered -- so
the QMP failure gate that DescribeInstanceStatus keys on never trips, and the
one state a customer most needs to see looked healthy.
Instance status now reports impaired/failed while the resume budget is
non-zero, timestamped from IOErrorSince so impairedSince is when the guest
paused rather than when it was escalated. System status reports impaired too:
a backend I/O error is an infrastructure fault, not a guest one, and that
distinction is what the two checks exist to draw. The counter is cleared by
the first poll that sees the guest running, so both clear on recovery.
* test: reap the relaunched nbdkit when the fault test ends
relaunchNbdkit detaches the server with setsid so it outlives the SSH session
that started it, and viperblockd never learned it exists. Nothing reaped it, so
every run left an nbdkit holding a socket and a cache for a volume that was
later detached or deleted -- four were found running on dev-prod against two
detached and two deleted volumes.
The PID is resolved from the socket path rather than the volume id, so a
legitimate viperblockd server for the same volume is never the one killed.
* test: prove the backend is serving before a fault is called cleared
Thawing the process a fault stopped is not the same as restoring the service.
The outage test treated SIGCONT as the end of the fault and went straight to
judging the guest, so it passed while the cluster it ran on stayed unable to
serve a single object for the next 35 minutes, and the next test would have
inherited that.
thawPredastore now puts and gets an object through every gate, with a budget,
and fails the test if the backend does not come back.
* fix: do not hand back a mount entry whose export is gone
A volume whose unmount failed kept its entry in MountedVolumes while its nbdkit
was gone. Every later ebs.mount then matched that entry and returned its socket
path, so vmMgr waited for a socket nothing would ever create and the instance
could not be started again — on dev-prod a guest stopped against a frozen
backend was left permanently stopped, four start attempts failing identically
on a socket the node had already removed.
Drop the entry when there is positive evidence the export is dead: the socket
is absent, or the recorded pid is not running. Neither can be true of a live
export, so the double-writer hazard the guard exists to prevent is unaffected.
Also make the durability test's pattern helpers report failures. The read dd sat
in a pipeline, so its exit status was discarded and the harness hashed nothing
and returned the empty-string sha256 as a checksum.
* test: report the guest console when a restart never answers SSH
A restart that reaches running but never comes back is indistinguishable from
a dead root filesystem without the serial console, and the log is gone once
the fixture terminates the instance.
* fix: converge guest port datapaths concurrently, not one deadline after another
Each guest port that misses its SB binding burns the full convergence deadline,
and applyEIPs spent them in series. Three ports belonging to long-stopped
instances therefore held a newly launched guest's EIP dark for the sum of them
before its own probe started.
AddEIP stays serial since it mutates NB. Only the waits fan out, bounded, and
sb-cluster-state-reset is now serialised with a minimum interval so concurrent
probes cannot each fire a cluster-wide resync.
* fix: refuse a stale cross-node start after the owning node is gone
The volume lease already refused a cross-node mount, but it is a liveness
claim: 45s TTL, renewed every 15s. A node that dies holding un-uploaded
writes stops renewing, and 45 seconds later nothing refuses a start elsewhere
that loads a stale backend checkpoint.
A failed seal now writes a durable marker naming the node holding the only
current copy, cleared on a seal that reaches the backend and on delete. The
lease covers a live holder, the marker a dead one.
The refusal also reaches the caller instead of being flattened to
ServerInternal, which told an operator to retry something that cannot succeed
while the holder is down.
* fix: keep the daemon's message when a start is refused
Rebuilding the error from the code alone rendered the generic ErrorLookup
text, so a refusal naming the node holding the volume reached the caller as
boilerplate about attaching volumes.
* fix(ec2): terminate detaches every DeleteOnTermination=false volume
TerminateStoppedInstance skipped the detach for a non-Boot DoT=false volume
on the assumption that Stop's Unmount had already cleared its attachment.
Unmount only clears it when the seal succeeded, so a volume whose seal failed
stayed in-use pointing at an instance that terminate then deleted, leaving it
unreachable with no owner to release it.
The running-instance path already detaches every DoT=false volume; the stopped
path now matches it, and tolerates an already-gone volume the same way.
DeleteVolume also keeps its provider error on the way out. The terminate reaper
retries the delete every two minutes and logged a bare ServerInternal, which
made a blob node being down indistinguishable from a transient fault.
* fix(ec2): DetachVolume --force releases a volume whose instance is gone
The ordinary detach routes to ec2.cmd.{instanceID} for the guest unplug, so a
volume left attached by a part-way teardown could never be detached: the
instance no longer runs anywhere and nothing answers. That also made it
undeletable, since DeleteVolume refuses an attached volume.
ForceDetachVolume already existed for this deadlock but was reachable only from
account teardown. Force now falls back to it when the instance has no responder,
which is the one case where clearing the attachment cannot strand a live guest.
* fix(viperblock): unsealed writes steer placement instead of pinning a volume
The dirty marker refused any mount from a node other than the one holding
unsealed writes. Instance start already forwards to the node that last ran the
instance and falls back after a 30s window, so that refusal turned a working
fallback into a volume that could run nowhere once its owner was gone. It
traded a rare data-loss risk for a permanent availability failure.
The marker is now a record and a warning, not a gate. A takeover logs the
previous holder and why it could not seal, then adopts the marker so the old
node is no longer treated as the better source. Live exclusion is unchanged and
still enforced by the lease.
It is also written on open rather than on seal failure. A node killed mid-write
never reaches its seal, so the old trigger left no trace in exactly the case the
marker exists to describe.
Adds 'spx admin volumes unsealed' to see which volumes would cost something if
started elsewhere.
* fix(viperblock): fence a volume whose lease moved instead of logging it
The lease was checked once, at mount, and never again. A node that lost it
kept its export up and kept writing into a volume another node owned, so
both copies advanced and the backend settled it by arrival order.
Losing a renewal now decides: another holder means tear the export down,
no holder means the entry merely aged out, so reclaim it and leave the
guest running. Fencing never seals — this node's copy is the stale one —
and leaves the dirty marker for the winner to take over.
This is not an epoch fence. It narrows the window from the 45s TTL to one
renewal interval at no write-path cost; the backend still cannot refuse a
stale writer.
* fix(network): advertise EIPs so a recycled address is reachable
The gateway switch port only asked ovn-northd to publish the router's NAT
addresses in centralised and routed modes, so on a distributed cluster nothing
ever announced an elastic IP. OVN still answers ARP for it, which is why a
first-time allocation works and hid this — but no gratuitous ARP is sent when
the address moves to a new ENI, so every host on the segment keeps resolving it
to the previous holder's MAC until its cache ages out. Reusing an address from
the pool then lands on a dead MAC and the instance is unreachable from outside.
Distributed mode needs the option as much as the others: northd scopes each
entry with is_chassis_resident(<vif port>), so the announcement leaves from the
chassis running the instance rather than the gateway, which is what distributed
NAT wants.
Converge on the already-attached path too. AttachIGW returns early once the
gateway port exists and nothing else rewrites it, so without that an existing
VPC would stay silent for its whole life.
Confirmed on dev-prod: setting the option moved three EIPs from unadvertised to
carrying their correct external_mac, each scoped to its own ENI's port.
* fix(viperblock): make the volume fence and its dirty marker ownership-safe
Four corrections to the lease-loss fence, all found in review.
Drop the reacquire path. Losing a lease and finding no successor was treated as
a lapsed entry worth reclaiming, but leases.acquire returns the cached entry —
already flagged lost, with a dead renewal goroutine — so the "reclaimed" lease
renewed nothing and the node went on writing a volume it could not prove it
owned. The two errors are not symmetric: a false fence costs one guest a
restart, a false reclaim leaves two nodes writing one volume. Fence in both
cases, and report which happened through the outcome attribute.
Surrender a lease this node cannot confirm. Renewal only noticed a loss when
the server rejected an update, so a node partitioned from NATS kept its export
up while the TTL expired and another node took the volume. Track the last
confirmed renewal and give the volume up once that ages past the point where
the server may admit another owner. Bound the renewal call too, so a hung
JetStream request cannot hold the goroutine past that point.
Do not act on a kill that did not take. Both the fence and ebs.unmount removed
the mount entry, released the lease and announced the result before knowing
nbdkit had exited — the fence then reported a writer stopped that was still
running, and the unmount sealed into a directory a live process was writing.
Wait for the exit, and on failure leave the volume mounted and say so. An
already-exited process now counts as success, which is what the caller asked.
Give the dirty marker a generation. It recorded an owner and nothing to order
two nodes' claims, so a node returning after a takeover could clear or overwrite
the winner's marker and point placement back at the stale copy. Stamp the lease
generation, refuse a write from an older one, and only clear a marker this node
still owns. A marker that cannot be written now fails the open rather than
leaving writes nothing records.
* test(viperblock): cover the stall surrender and the unmount kill guard
The two ownership cases the fence work left untested.
A holder partitioned from NATS while the winner keeps it never gets an update
rejected, so revision checking cannot see it — it has to give the volume up on
its own clock. Pins that validity sits below the server TTL with room for a
check in between, that a lapsed holder reports the loss as a stall rather than
as a takeover, and that releasing a surrendered lease leaves the entry for
whoever holds it now.
The unmount side of the kill guard: sealing under a live nbdkit writes a state
torn between two writers, so a kill that did not take has to fail the unmount
and leave the entry mounted for a retry.
* fix(e2e): keep the guest private key for as long as the key pair
EnsureKeyPair computed the PEM path from the caller's directory but wrote
the file inside the ensureOnce closure, which runs only on the first call.
Callers passed a per-test artifact dir, and ArtifactDir removes that dir
when the test passes — so the first test's success deleted the only copy
of the private key while the key pair stayed registered, and every later
call returned a path nothing had ever been written to.
Guests after the first were then launched against a public key whose
private half no longer existed, so the harness could never authenticate
and gave up after the full five-minute budget. The guests were healthy
and reachable on tcp/22 throughout, which is why this read as a storage
or network fault for so long.
The directory parameter was the defect, so it is gone: the PEM now lives
in a directory the fixture owns and removes with the key pair, and no
caller can supply one that is shorter-lived.
Also reorder the killed-nbdkit teardown. The reaper registered its own
cleanup after the detach registered one, so LIFO killed the block server
before the platform detached the disk and DetachVolume then failed with
"Node ... is in use". The detach cleanup now reaps once it is done.
* fix: stop leaking an nbdkit export when recovery cannot adopt it
Restart recovery adopts a guest's boot volume, then routinely fails the
-efi volume with "claim lease: context deadline exceeded" -- JetStream is
still catching up at daemon start and the KV claim runs on the client's
5s default. Recovery gave up on the first error and never retried, so the
export stayed live with no registry entry. At terminate the unmount found
nothing to seal, returned NotFound and killed nothing, and the process
outlived its guest holding the volume and socket open. EFI is always the
second volume adopted, which is why it was always the one that leaked.
Two changes, because either alone leaves a hole:
- rebuildMountedVolume retries the build (4 attempts, 3s apart) so a
JetStream that is merely slow no longer orphans an export for the life
of the process.
- unmountVolume reaps a corroborated export for the volume it was asked
to unmount when the registry has no entry for it, so an export orphaned
by any means is still cleaned up. The reap goes through
reapOrphanedNbdkit, which declines anything a live process references:
at unmount the guest's blockdev may not be torn down yet, and killing
the server underneath it strands QEMU.
* test: hold the backend-serving probe and assert predastore readiness
The backend-outage test declared the backend restored on one successful
round trip through each gate. A gate can answer the request that arrives
just after a thaw and then lose its blob peers under the load that
follows, which is a backend that never recovered reported as one that did
-- and that is what happened: the probe reported all three gates serving
minutes before the guest was still taking BLOCK_IO_ERROR on every resume.
The round trip has to hold across three rounds now, and the count restarts
rather than decays when one fails, so a gate that serves and then stops is
the failure the hold is looking for rather than noise it averages out.
It also checks /readyz on each host and reports any failed check by name.
The round trip only proves this workstation can write through a gate; it
says nothing about which blob peers that gate can reach, and a gate one
node short of the write floor serves a small object and fails a guest. A
host that serves no admin listener is logged and skipped, since the port
is optional configuration.
* fix: scope predastore's admin port to the cluster plane in the host policy
predastore's admin listener binds the host's cluster bind_addr and serves
/healthz and /readyz unauthenticated. Readiness now names which blob peers
a gate cannot reach, which is exactly the kind of topology detail 4432 is
peer-scoped for, so 8660 joins it in the peer-scoped rule rather than the
public one.
* fix: keep resuming a paused guest at heartbeat rate after a long outage
Past ten attempts the cont dropped to one per ten heartbeats, so a guest
whose backend had come back could sit paused for another five minutes
before anything retried it. Measured on dev-prod: the backend was proved
serving through all three gates while the guest was still waiting on
attempt 60, five minutes after attempt 50.
The slowdown was there to avoid paying a failed I/O every thirty seconds
on a backend still down. That is nearly free, and five minutes of downtime
after recovery is not, so only the log line is throttled now.
* test: fail the run when a key pair name resolves to more than one pair
A create that lands twice leaves two key pairs with one name and different
material. RunInstances resolves the name to one of them while the harness
holds the private key of the other, and the only symptom is every guest in
the run refusing the key at the SSH gate — five minutes of waiting per
guest, four guests, and nothing anywhere naming the cause. Observed on
dev-prod: two pairs created a millisecond apart, both named
e2e-key-30de10ba.
One DescribeKeyPairs after the create says so outright instead.
* test: tolerate an already-released volume in the detach teardown
Teardown runs DetachVolumeWait after a terminate that releases the volume
itself, so the detach can arrive at a volume already on its way to
available. That is the outcome it wanted, and treating the IncorrectState
refusal as fatal failed a backend-outage run whose assertions had all
passed — the guest came back, every acknowledged write verified, and the
test still went red on the way out.
VolumeInUse is still fatal: that one means the volume is attached
somewhere it should not be.
* test: carry the merged suites onto the reworked key-pair and account-scoped seams
The diskperf suite arrived on dev calling EnsureKeyPair with the artifact dir
this branch removed, and DeleteVolume's metadata lookup is account-scoped now,
so the provider-failure test has to seed and delete under the same account.
* refactor: make the fence outcome a type in one const block
Four separate exported string constants with a paragraph of comment each,
passed to RecordVolumeFence as a bare string. Group them, give them a
FenceOutcome type, and take that type at both call sites so an arbitrary
value can no longer reach the metric attribute.
* refactor: move viperblockd's wire contract into a leaf vbwire package
The daemon imported viperblockd for exactly two symbols -- the fenced
volume subject and its event -- which put the storage service back on the
daemon's dependency graph to name something it only listens for.
vbwire holds the contract instead: the subject and event, the dirty
bucket name and record shape, and the read-only listing an operator tool
needs. It imports nothing from spinifex, so both the daemon and the admin
CLI drop their edge to viperblockd entirely. cmd/service.go keeps its
one, which is genuine: it constructs the service.
* docs: drop a specific host name from the start-refusal comment
Named a real dev-prod host in a comment and in test fixtures. Say what
the name is instead.
* ci: give storagefault a dedicated nightly cell
The suite is eligible for both topologies and runs on the PR gate, but no
nightly cell ran it: the permutation cells run a deliberately narrow
subset and none of the dedicated suite cells named it.
Cell 29, single-node, following eks/ecs/rds. It cannot join a permutation
cell -- it SIGSTOPs a cluster-wide service, so every suite sharing that
environment would report the outage as its own failure.
* ci: run storagefault nightly on three nodes, not one
The previous commit put its dedicated cell on a single-node runner. That was
the wrong topology and the wrong justification: single-node is RS(1,0), where
the shard floor cannot be broken and a cross-node takeover after a failed seal
does not exist, so the two assertions worth having a dedicated cell for were
the two it could not make. Cell 29 is now real-multi on ci-multi.
It also corrects the claim that the PR gate already covers the multi-node case.
The suite is eligible for both topologies, but e2e.yml's default suite list
never names it, so it has never run there. A full pass is ~63 minutes on
dev-prod bare metal, almost all of it deliberate waiting -- one test holds
predastore SIGSTOPped for seven minutes -- which is too long to add to a gate
that currently finishes well inside its budget. Nightly is where it belongs.
Consequences: a per-cell timeout_minutes, defaulting to the previous 50, since
90 minutes of suite cannot run in a 50-minute job; the permutation steps gated
on matrix.suite == '' so the dedicated cells do not also run them; and a Run
Multi Suite E2E step that builds NODES_CSV from the tofu inventory and asserts
the suite against E2E_SUITES_MULTI before running it.
* fix: stop a startup KV race leaving vpcd serving keyless guests
vpcd opens five KV buckets while NATS is still coming up, each attempt
carrying a ~5s JetStream API deadline, and applied three different policies to
the same failure: spinifex-vpc-enis was fatal, while instance-state,
security-groups, subnets and vpcs each degraded silently for the lifetime of
the process. A five-second blip during a cold start therefore decided how a
node served metadata until someone restarted it.
On dev-prod all three nodes hit this after a deploy. Two were saved by
accident: their ENI bucket also timed out, so they exited 1 and systemd
restarted them cleanly. The third's ENI bucket opened in time, so it never
crashed and ran for hours with no instance record loader. With the local state
file unreadable as well, every instance-backed IMDS leaf 404'd, cloud-init's
crawl died on ami-id and fell back to DataSourceNone, and every guest launched
on that node booted with no authorized_keys.
kvstore.OpenWithRetry retries for a bounded window before any policy applies,
logs the cause per attempt and the wait on a late success, wraps the last error
with the bucket name, and returns at once on a cancelled context. All five
opens use it. Failing to open the instance record space is now fatal, matching
the ENI bucket: the dependency whose loss stops guests logging in should not be
treated more leniently than the one whose loss stops ENI resolution.
Also fixes the reason the fallback was load bearing at all. The local state
file was written 0600 and vpcd reads it as a different user in the shared
spinifex group, so the local-first path had never once worked and its
mtime+size cache had never fired. It is 0640 now, set with an explicit Chmod so
an inherited umask cannot undo it.
Closes mulga-gtpzz, mulga-dhqxr. Still open: mulga-mm2oc, IMDS serving an
unresolvable instance as "no key pair" with nothing logged.
* fix: scope the ime-* firewall accept to IMDS and VPC DNS only
The per-tap OVS demux delivers any guest packet addressed to
169.254.169.254 or .253 onto an ime-* host port regardless of L4 port,
and iifname "ime-*" accept then admitted all of it. Every wildcard-bound
host service — sshd, the AWS gateway, northstar, the console — answered
guest packets on those addresses; only asymmetric reply routing kept the
handshake from completing, and a guest could still drive northstar to
recurse unthrottled. Scope the accept to IMDS (.254:80) and VPC DNS
(.253:53), letting everything else fall through to policy drop.
* docs: document the instance-to-host plane and how to protect it without the ISO
The metadata/VPC-DNS link-local plane (169.254.169.254/.253) is served by
host services and is invisible to a NIC-level or cloud firewall, since the
traffic is intra-host on the OVS bridge. Explain that the ISO ships the
scoping rule armed, that the binary installer ships the firewall off, and
that a non-ISO install must enable it with setup.sh --firewall=on or
firewall_enabled=true. Include verification from an instance and the host.
* fix: withhold the IMDS meta-data listing when the instance does not resolve
Every omission from the meta-data root is a positive claim about the instance —
public-keys/ absent means "launched without a key pair", and cloud-init believes
it, writes no authorized_keys and boots the guest keyless. So resolving the
instance was best-effort for a listing whose whole meaning depends on it: a
backend error or a miss shortened the listing instead of failing it, and nothing
anywhere recorded that the answer was a guess.
Withhold the listing with a 500 instead. cloud-init retries a 5xx and cannot
retry a 200 that is merely wrong, so this converts a permanent silent failure
into a transient loud one. servePublicKeys already had this policy for the leaf;
the root is what contradicted it.
A profile lookup that fails still serves the listing minus iam/, and now logs.
The key pair is the field a guest cannot recover from losing, while a missing
role surfaces through the credentials leaf, which reports the miss itself.
Also stops the storagefault cross-node test failing on its own access path. It
tolerates the pattern changing across a takeover, but readPattern needs sudo,
and a volume opened from the backend checkpoint may predate cloud-init writing
its sudoers drop-in — indistinguishable from an unreadable device at the dd call
site. It now checks sudo first, and reads cloud-init's recorded datasource to
tell a rolled-back root filesystem from IMDS never having answered, failing
loudly on the latter rather than accepting it as storage loss.
---------
Co-authored-by: brynmailer-mdc <bdm@mulgadc.com>
|
||
|
Josh Siviour
|
e2c5397b5d |
feat: gateway-side instance record cache (Phase 2) (#992)
* feat: add read-only instance record cache (Phase 2) Adds spinifex/instancecache: a revision-fenced snapshot+watch informer over the instance record KV space, with a per-account index and OTel metrics. Wired up and running in awsgw at startup, but not yet consulted by any read path. * fix: cover the fence with real syncs, bound decode-failure cardinality, expose degraded Adds end-to-end fencing tests that drive freshSync/periodicResync against the embedded NATS server via a test-only postSnapshotHook seam, since drainBuffered unit tests alone don't exercise the buffer-before-snapshot ordering. Drops the per-key attribute from the decode_failures counter to keep it O(1) time series; the key is still logged where the decode happens. Adds a Degraded accessor set on sync failure and cleared on the next success, per D7, without changing what List or Get answer. * refactor: replace instancecache's buffering fence with ResumeFromRevision The watch/snapshot fence no longer needs a side buffer, watcher modes, or an overflow failure mode. Every sync now snapshots first, then opens a watcher with kvstore.Bucket.WatchFrom (ResumeFromRevision), and replays onto a private candidate map until the end-of-replay marker arrives. Only a fully caught-up candidate is swapped in as the live map, together with its watcher becoming active; the previous watcher is stopped and joined only after, so two watchers never apply to the same map. kvstore.Bucket gains WatchFrom as a sibling to Watch, opened through the same withKV wrapper, for a caller that needs to replay from a snapshot's high-water mark rather than an UpdatesOnly live feed. * fix: cover the fence with production entry points, not a reimplementation The four fence tests recomputed hw+1 and called kvstore.WatchFrom/replay themselves instead of going through syncOnce, so they verified nats.go's resume behavior (already covered by TestResumeFromRevision_...) rather than the cache's own revision handling. A mutation inside syncOnce (hw+1 -> hw+1_000_000) passed all four. Reinstate a postSnapshotHook seam (nil in production) so the initial-sync pair can call syncOnce/installSync directly and the periodic-resync pair can call periodicResync directly, landing the write inside syncOnce's internal snapshot-to-watch window without duplicating it. The same mutation now fails all four; reverting passes all four. * feat: count the records a resumed watch replays, so the fence is observable live |
||
|
Ben Duncan
|
b6d01370dd |
fix: render northstar's recursion allowlist so a node is not an open resolver (#993)
* fix: render northstar's recursion allowlist so a node is not an open resolver northstar.toml is written with allow_recursion = false and an allow_recursion_from list built from cluster membership, so a freshly formed node serves recursion to the cluster and refuses it to the internet. The list is the node's own bind and advertise addresses plus every peer's host, with any port stripped. Both local addresses matter: a node's resolv.conf points at its own advertised address, so the query arrives from that public IP over lo rather than from 127.0.0.1, and an allowlist of loopback alone would stop every node resolving internal names. Guests are covered without appearing in the list. vpcd's per-tap DNS shim relays guest queries to a node's :5300 from a node address, so trusting the nodes trusts every guest behind them and no guest CIDR is needed. The template comment carries the caveats for allow_recursion = true, since the cost of setting it is remote from the setting: an open resolver is found by scanners within hours and gets the node's whole address range blocklisted, which is an outage for every tenant on it. The list is rendered at formation, so a node added later is not in its peers' files. Regenerating it live from membership, as the daemon already does for peers.nft, is follow-on work tracked on mulga-t3mub. * chore: pin northstar to the recursion ACL and atomic zone reload The recursion allowlist this branch renders is enforced by northstar's RecursionPolicy, which lands in dev at a0e741e. CI resolves northstar from go.mod rather than the workspace, so the build failed on NewRecursionPolicy being undefined until this pin moved. The AWS SDK bumps come with it. |
||
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Josh Siviour
|
06df1b799b |
fix: tunnel apiserver controlplane egress through konnectivity (#991)
The EgressSelectorConfiguration written to every EKS control-plane VM defined only the `cluster` egress selection, which carries kubelet exec/logs/portforward. Admission webhooks and aggregated apiservers dial via the `controlplane` selection instead, and an undefined selection falls back to a direct dial. The control-plane VM sits alone in its own VPC with no route to the service CIDR, so every webhook call timed out after 10s and konnectivity never saw a single dial request for one. Define both selections on the konnectivity-server UDS so webhook traffic rides the agent-initiated reverse tunnel alongside kubelet traffic. |
||
|
Julian Sommer
|
4d3ba022ce |
fix: poll for the outcome point instead of racing the reply
natsMetricsHandler records after the handler has already replied, so a test that collects the moment nc.Request returns can beat the point to the reader. Matches the poll the ec2.cmd outcome tests already use. |
||
|
Josh Siviour
|
d9593c0a48 |
feat: repair instance records on a ticker, not only on state change (#988)
* feat: repair instance records on a ticker, not only on state change A record write is best-effort, and a failed one forgets its digest so the next reconcile retries it. But the only caller is persistState, reached from WriteState, which fires on state change. An instance that launches, has its record write fail, and then simply runs has no next state change, so its record is absent for as long as it lives. A 60s sweep on the node now reconciles the live instance set against the digest of what it has published. The digest guard means a node with nothing outstanding writes nothing, so the cost tracks failures rather than instance count. The interval is the point of the change — it is what turns an unbounded window into a bounded one — so it is asserted directly rather than inferred from a sweep. The sweep does not go through persistState: the local state file is already correct and rewriting it would advance the state revision for no reason. Only the record half needs repairing. WriteRunningSet now reports what it did, so a sweep that found work can say so and a healthy node stays silent. * fix: keep the QMP liveness stamp out of record change detection Found on env19: the node owning a running instance rewrote its record on every sweep, forever. The digest guard was working exactly as coded — it correctly found a real difference each tick, because Health.LastQMPSuccess advances on every successful QMP poll and the collector runs on its own cadence. Left alone this is a KV write per running instance per node per minute, indefinitely. The stamp is now held out of the digest. Nothing reads it back: impairment is judged from QMPConsecutiveFailures and ImpairedSince, and node liveness comes from the heartbeat store, so holding it out costs no reader anything and restores the publication cadence the record had before the sweep existed. QMPConsecutiveFailures and ImpairedSince stay in, because an impairment is a real transition that has to reach the record space. Both halves are covered: a stamp moving on its own must not write, and an impairment must still write. The first fails without this change. |
||
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Julian Sommer
|
7b4a83ccfe |
fix: expect InvalidSnapshot.NotFound for cross-account DeleteSnapshot
Snapshot metadata is now keyed by owning account, so a snapshot outside the caller's prefix is absent rather than forbidden. The e2e assertion still encoded the pre-partitioning UnauthorizedOperation contract. |
||
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Julian Sommer
|
d8d3e2268d | feat: partition EBS metadata keys by owning account (#989) | ||
|
Josh Siviour
|
de44fa3264 |
fix: cover the full ELBv2 attribute key set (#990)
ModifyLoadBalancerAttributes and ModifyTargetGroupAttributes reject any
key absent from the per-type default maps with ValidationError, and the
rejection fails the whole call rather than the single key. Terraform and
the AWS Load Balancer Controller send the full attribute set on every
apply, so one missing key breaks the resource outright.
Adds the 17 keys the ELBv2 API reference documents but the default maps
lacked:
ALB: health_check_logs.s3.{enabled,bucket,prefix}, ipv6.deny_all_igw_traffic
NLB: secondary_ips.auto_assigned.per_subnet
Target group: load_balancing.algorithm.anomaly_mitigation,
stickiness.app_cookie.{cookie_name,duration_seconds},
lambda.multi_value_headers.enabled, target_group_health.* (4),
deregistration_delay.connection_termination.enabled,
preserve_client_ip.enabled, target_health_state.unhealthy.* (2),
target_failover.{on_deregistration,on_unhealthy}
health_check_logs.s3.* is what surfaced this: it is ALB-only, and an
aws_lb apply against the sandbox failed on it.
The target group map stays a single flat union rather than splitting by
protocol, so it remains a permissive superset. Values are store-and-echo
only; nothing in the data plane reads them.
|
||
|
Bryn Mailer
|
eccc61a69e |
fix: hold back JetStream recovery headroom on the store filesystem (#967)
Filling the filesystem behind the JetStream store to zero free bytes leaves nats-server with nowhere to write while it recovers a stream. Every error return inside the locked region of newFileStoreWithCreated assigns nil to the named return value fs, and the deferred unlock then dereferences it, so a recovery write failure surfaces as a nil-pointer panic instead of an error. That structure is unchanged in v2.14.3, in the pinned v2.14.5 and in the current v2.14.6, so no available version bump addresses it. The nats service now keeps a preallocated reserve file beside the jetstream directory and hands it back at startup when the filesystem can no longer supply that headroom on its own, re-arming once space returns. Recovery therefore always has somewhere to write, whichever process filled the disk. |
||
|
Bryn Mailer
|
18aa67b0e9 |
feat: add the e2e guest disk-performance gate (#964)
* feat: add the e2e guest disk-performance gate Nothing measured guest disk performance in CI, which is why a quadratic index scan shipped in viperblock 35dd9f2 and survived three subsequent fixes to adjacent code. It is also why the two availability clauses at the end of the ebs-performance plan's Stage 0 have never been evaluated: a sustained random-write workload took the guest, and then the host, down, and nothing since has demonstrated that it no longer does. tests/e2e/diskperf/ launches an instance, attaches a dedicated blank volume per repetition, and drives a pinned fio profile over guest SSH. Two profiles: randwrite-4k at 4 jobs x 4 GiB, the shape the exit criterion names, and randrw-70-30-4k, the mixed workload the headline IOPS came from. The target is a raw device with direct=1 rather than a file on the boot disk, so guest page cache, filesystem allocation and journal traffic are out of the path. Two classes of assertion, kept apart because folding them together lets a run that left the host unreachable pass on a respectable IOPS figure. Availability is hard pass/fail and absolute, so it gates from the first run: the job completes inside its budget, a guest responsiveness probe answers throughout on a second SSH channel, and the host's own sshd answers throughout. The guest probe reads the root volume while the workload runs on a different one, so a pass is evidence of isolation between volumes rather than of the job merely being slow. The host probe is a TCP connect plus an SSH banner read, which needs no credential and still proves the kernel scheduled sshd. Throughput and latency are banded against a committed baseline: fail above 25% regression, warn above 10%, per-metric median across repetitions. baseline.json is committed and embedded, with every figure zeroed, and a zero reference records and warns rather than failing. Only the availability class gates until numbers are captured on the bare-metal cell; a throughput band nobody measured would be a fabricated gate. A fresh volume per repetition is the reset. Extent count grows monotonically, so reusing a volume makes the gate order-dependent and drifts its own numbers upward over time, slowly normalising the regression it exists to catch. Each job is its own guest invocation and fio's JSON is fetched by a separate command, so a wedged job loses only itself and reports as a budget breach rather than a parse failure. e2e-baremetal.yml gains suites, suite-env and cell inputs so one reusable workflow serves both the correctness cell and nightly cell 28, which queues behind cell 20 on the shared concurrency group. Cells 25-27 are the dedicated eks, ecs and rds cells. The per-suite Go test timeout is resolved from e2e_suite_timeout in suite-sets.sh, where diskperf declares its 180-minute budget beside rds's rather than in a second place. The gate's own arithmetic runs in preflight via test-harness: band edges, the unmeasured cases, per-stream metric selection, fio JSON parsing, and the probe accounting including a slow-but-successful answer counting as a breach. A gate whose comparison logic is untested is the failure mode the plan is otherwise full of. The extent-count ceiling named as a fourth availability assertion is not implemented: it needs viperblock.index.entries from S1.5, which does not exist. * feat: let a manual bare-metal run choose its e2e suites A dispatch run only sees inputs declared under workflow_dispatch, which had none, so suites and suite-env resolved empty and fell back to the correctness set. Capturing a diskperf baseline by hand was therefore unreachable without a workflow_call caller. * fix: build the bare-metal suites the run step will execute The build step packs pre-built binaries into the tarball and did not see the suite selection, so a selected suite was absent from the node unless it happened to be one of the three the build script hardcoded. * feat: commit the measured disk-performance baseline Medians of three repetitions on the bare-metal cell. The throughput and latency bands now gate instead of warning, so a 2x regression in either job fails the suite. randwrite-4k's write tail is two orders above the mixed job's. It is recorded as measured rather than zeroed: an ungated metric would miss the regression class the gate exists to catch. |
||
|
Josh Siviour
|
c767f2b6ee |
feat: judge DescribeInstances completeness by responder identity, and resolve IMDS locally (#985)
* feat: stamp the owning node's AZ on the instance record RunInstance never persists a node's AZ onto the stored instance, so today only the launching node's own ProjectInstance call can produce a correct AZ for a describe. Add VM.AZ, carry it on InstanceStatus since it is placement observed by the running node, and stamp it in WriteRunningSet alongside Status.LastNode from the node's own config.AZ. * docs: trim the AZ field comment to the project's three-line limit * fix: identify Gather responders by node, not by frame count utils.Gather previously counted reply frames toward completeness, so two subscriptions replying from one host (a daemon mid-restart) could satisfy a fan-out while a genuinely configured node stayed silent. Every daemon reply now carries an X-Node-ID header set by the shared response helpers via nats.Msg.RespondMsg, so Gather can attribute each frame to the node that sent it. Gather gains a CollectionMode (CollectServeData preserves today's early-exit behavior; CollectUntilDeadline collects to the full deadline for absence-proof callers) and returns node-identified Frames plus Responders/ SuccessResponders/ErrorResponders sets. Identity mode retains only the first payload seen per node; a disagreeing later frame from the same node flags a conflict but never overwrites the retained data. Node identity uses one namespace across the reply header, config.ClusterConfig.Nodes keys, daemon.Heartbeat.Node, and vm.VM.LastNode, all traced back to Daemon.node - confirmed to already agree, with a new test asserting it at runtime. This is a mechanical caller-side follow-on: every existing utils.Gather caller now reads frame.Data instead of frame directly. * feat: thread configured node set to DescribeInstances GatewayConfig gains NodeIDs, the keys of config.ClusterConfig.Nodes, distinct from the existing ExpectedNodes count. awsgw builds it from cluster config and wires it into GatewayConfig. The DescribeInstances action passes gw.NodeIDs through instead of relying on gw.DiscoverActiveNodes(ctx) at that call site, so completeness can be judged against the nodes that are actually configured rather than the nodes that happened to answer a discovery probe. * fix: judge DescribeInstances completeness by node identity DescribeInstancesChecked now judges completeness on decoded frames against the configured node set (ValidResponders) rather than on Gather's frame/byte counts, which cannot know the describe schema. A node that answers with a nil Reservations list is a valid responder, not an invalid one - the existing merge guard on Reservations != nil governs how frames combine, not whether the node counted as having answered. The explicit-instance-ID 404 path now collects with CollectUntilDeadline so a node that hasn't replied yet cannot be mistaken for a node that has nothing to report; general listing stays on CollectServeData. Any ambiguity - an unidentified frame, a node appearing in both the success and error sets, a node replying twice with disagreeing frames, a Gather cap hit, or an empty/unset node set - suppresses the NotFound rather than risking a false one. * fix: let a describe by instance id stop once every id is found CollectUntilDeadline made every DescribeInstances with explicit ids wait the full 3s fan-out deadline, measured at 4650ms against 1655ms before, on a healthy cluster where all three nodes answer in about a millisecond. Gather gains a Settled predicate, consulted only under CollectUntilDeadline, that ends collection once the replies already answer the question. Absence still pays the whole deadline, and an instance the caller cannot see is filtered out of every frame so it takes the absence path too, which keeps the two NotFound answers indistinguishable in time. * refactor: resolve IMDS instance metadata local-first, drop the fan-out IMDS only ever serves a guest on its own node, so a DescribeInstances fan-out to the whole cluster is unnecessary latency and load. Resolve from the node's own on-disk VM state first, falling back to a direct record-space read for an instance that has moved off this node. Neither path issues a NATS request. * perf: cache the local instance state parse for IMDS lookups IMDS request rate is guest-driven and unbounded, so re-reading and re-parsing the whole on-disk VM state on every request does not scale with VM count on a node. Cache the parsed state and only re-read when the file's mtime or size changes; a stat or parse failure clears the cache and falls back to the record space rather than serving a stale hit. * fix: share ManagedBy visibility rule between DescribeInstances and IMDS Extracts IsInstanceVisibleToCaller so account ownership and the platform-managed hide rule live in one place instead of two independently maintained copies. * refactor: decouple IMDS instance lookup from the daemon package handlers/imds no longer imports daemon: NewIMDSServiceImpl now takes a localStateReader and a recordLoader interface instead of a dataDir string, and vpcd (the composition root for both planes) constructs both adapters, including the stat-guarded local-state cache that used to live inline in handlers/imds. Either adapter may be nil, degrading that source to a miss rather than failing IMDS to start. * test: move the local state reader test to an external package * chore: exempt export_test.go from the external test package check The check's own remedy text tells you to move unexported hooks into an export_test.go, then flags that file for being in-package — which it is by definition, since exporting internals is its whole purpose. * fix: bound how many describes may hold a full fan-out deadline A describe naming an instance the caller cannot see is filtered out of every frame, so it never settles early and holds a gateway goroutine and inbox subscription for the whole 3s deadline. Issuing those is free for the caller, so nothing stopped a burst of them pinning unbounded gateway state. Absence proofs now draw on a fixed budget. Past it, callers get a retryable RequestLimitExceeded rather than being queued, since queueing would let the backlog grow. The decision is taken before any reply is read, so a nonexistent id and another account's id throttle identically and the throttle cannot become the timing oracle the deadline exists to close. * perf: settle describe-by-id on responder coverage, not the full deadline Every describe-by-id was paying the whole 3s fan-out deadline whenever the requested instance was not in a running-instance frame — which includes a stopped instance, a terminated one, an id belonging to another account, and an id that does not exist. Gather gains ResponderGrace: once every ExpectedResponders node has answered, collection closes after a short grace window instead of running to the deadline. Core NATS gives a request only to the subscribers present when it was published, so an overlapping subscription replies alongside the first and one that arrives later never receives the request at all. Waiting past full coverage cannot find a reply that full coverage missed. The window is armed once and never extended, so a node replying repeatedly cannot hold the fan-out open. The full deadline is now paid only when a node stays silent, which is the case it was always meant to cover. The stopped and terminated bucket queries now run alongside the fan-out rather than after it, so their latency overlaps it instead of adding to it. They feed a shared instanceSettler that ends collection as soon as every requested id has been seen, skipping even the grace window. The timing oracle is unchanged. An instance the caller cannot see is filtered out of every source before the reply is sent, so it takes the same path as an id that does not exist: both answer NotFound after full responder coverage, and remain indistinguishable in time. * fix: stop parallel tests racing the terminate backoff seam terminateRetrySleep is a package global, and every test that needed it neutered swapped it and restored the old value from t.Cleanup. Those tests run in parallel, so two cleanups could write the seam at once — a real data race the detector caught once enough parallel tests shared the binary. Installed once in TestMain instead. Nothing in this package wants the real backoff, so there is no value in restoring it per test. |
||
|
Julian Sommer
|
a5fc2b517c | fix: supply aws:userid on the gateway authorization path (#987) | ||
|
Julian Sommer
|
ab167a192c | fix: reject an unresolvable policy variable on the IAM write path (#986) | ||
|
Julian Sommer
|
4522494c17 |
fix: define the per-suite e2e test timeout once, in suite-sets.sh
The timeout was written out separately in each workflow and drifted: rds ran 50m on the PR gate and 30m nightly, where it panicked and took six in-flight subtests with it. e2e-suites.yml had the same hardcoded 30m on its single path, which also runs rds. A new e2e_suite_timeout helper sits beside the eligibility lists it already guards, and all four call sites resolve through it. e2e.yml loops over suites on the remote VM, which has no checkout, so it resolves the pairs on the runner and looks them up in the loop. Also lift the nightly cell ceiling to 50 minutes so the rds cell is not cut short by the job before its own timeout applies. |
||
|
Julian Sommer
|
0b518d2f79 |
fix: name the blocking resource in DeleteSecurityGroup DependencyViolation
checkSGDependencies knew which ENI or referencing security group blocked the delete and discarded it, returning a bare DependencyViolation with no log line, so the blocking id had to be recovered by cross-referencing the ENI table. Return it via awserrors.Errorf and log it at the point of refusal. |
||
|
Bryn Mailer
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e07f25ccb2 |
fix: fail DRAIN when a volume seal failed (#966)
shutdownAndUnmount logged the volume unmount error and returned nothing, so StopAll returned nil and the DRAIN phase ACKed success with vms_stopped set. The coordinator then advanced to STORAGE and stopped viperblock while the seal was still in flight, tearing the VBState envelope and leaving the guest unable to mount its root volume on the next boot. The deploy reported success. shutdownAndUnmount now returns ErrVolumeSealFailed when the unmount did not seal; QMP, PID-file, fw_cfg and telemetry cleanup stay best-effort. stopCleanup and stopOne carry it without aborting the rest of the teardown, since QEMU is already down by then, and StopAll aggregates the per-VM failures so handleShutdownDrain ACKs with Error set and never reports vms_stopped. volumeMounterAdapter.Unmount was the second swallow site: it logged each failed seal and returned nil unconditionally. It now attempts every volume and returns the aggregate, which is what the VolumeMounter contract already described. Terminate still tolerates a failed seal — the volumes are deleted next, so an unsealed block map loses nothing a caller can ask for. This does not fix the seal itself. It converts silent data loss into a refused upgrade that an operator can act on. |
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Julian Sommer
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be94beb52a | ci: run eks, ecs and rds nightly in dedicated cells (#984) | ||
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Julian Sommer
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0247f57d6c | fix: derive S3 Service Metrics cluster health from raft quorum (#983) | ||
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Julian Sommer
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677055a478 | test: cover the launch-template boot path end to end (#982) | ||
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Julian Sommer
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e8f1718ebd | fix: seed the gateway nexthop MAC binding for a host-local nexthop (#981) | ||
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Julian Sommer
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dc9b8429ae |
fix: derive the EKS nodegroup ARN discriminator so an exact-ARN Deny fires
The policy gate had the cluster and nodegroup name but not the trailing UUID, so it evaluated nodegroup/<cluster>/<name>/*. That value matches the AWS-documented wildcard policy spelling but not one naming the exact stored ARN, which is what a tenant gets by pasting DescribeNodegroup output, so that Deny stayed inert. The discriminator is now derived from (account, cluster, name) as an RFC 9562 version-8 UUID, so the gateway and the handler compute the same value independently and the gate names the stored ARN exactly with no lookup. Nodegroups created before this keep their random discriminator and their existing wildcard-only behaviour. |
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Julian Sommer
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f7bcccb1fe | test: cover spread placement distribution and the default VPC handlers | ||
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Julian Sommer
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e53e7a5884 |
test: cover subscriber topology handler happy paths
Drives every vpc.* topology topic end to end against the mock OVN client and asserts the resulting rows: router, subnet switch and router port, logical switch port addresses and port-group membership, gateway router port, NAT rules and egress policies. Invalid CIDR, IP and MAC events are pinned to a failed reply envelope with no partial write. Moves the elbv2 dispatch table to an external test package. subscribers 53.5% -> 73.4%. |
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Julian Sommer
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13c5b00066 |
test: pin elbv2 gateway subject wiring and validation guards
Adds a 35-row dispatch table covering every NATS-backed elbv2 gateway wrapper. Each row subscribes a stub only to the expected subject, so a mis-wired subject fails as no-responders, and asserts the returned value, the forwarded request body and the account header. A second table covers the 28 validation guards that had no test, each pinned to its AWS error code. Package coverage 49.5% -> 93.8%. |
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Julian Sommer
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80f4db05bc |
test: cover the ebs provider NATS server, memory provider and null provider
Tables the twelve subjects Serve subscribes through the malformed-body, version-skew and provider-failure arms, and round-trips every verb through NATSProvider against a served MemoryProvider so client encoding and server decoding are asserted against each other. Covers MemoryProvider.ListVolumes, ListSnapshots and CopySnapshot, all of which were at zero, plus NATSProvider's nil-payload and subject-token guards. natsserve 28.8% -> 91.3%, ebsprovider 67.5% -> 86.3%, nullprovider 0% -> 100%. |
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Julian Sommer
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bd8ac8efa1 |
test: cover the installer wizard key handlers and screen rendering
Drives the model through Update with real key messages: a full walkthrough asserting the config it produces, every validation gate keeping the operator on the screen with the cursor on the field at fault, and the rendered output for facts that appear nowhere else (role layout, pool geometry, folded planes). |