* fix: ECS StopTask reaps container before releasing capacity
StopTask marked a task lastStatus=STOPPED and released its capacity/ENI in
the control plane, but nothing ever told the ecs-agent to kill the container.
The container kept holding its host ports, so DescribeTasks reported a STOPPED
task whose container was still RUNNING, and a replacement task placed on the
freed capacity that rebound the same host port hit EADDRINUSE.
Wire the agent-driven cooperative stop the design intended (ecs-v1.md:165):
- Add a per-instance stop inbox (StopsPrefix/StopKey) and bus.StopDirective.
- requestStopTask marks DesiredStatus=STOPPED and posts a stop directive,
leaving lastStatus/capacity/ENI/targets untouched. StopTask, DeleteService,
and service scale-in use it; the heartbeat reaper and cluster/instance
teardown keep the immediate forceStopTask since no live agent can reap.
- PollAssignments returns pending stops; the agent lists containers by
mulga.ecs.taskID label, Removes them (kill+delete, freeing ports/netns),
then reports STOPPED. recordTaskState performs the single capacity release
on the agent's STOPPED report and reclaims the stop inbox.
- listServiceTasks excludes DesiredStatus=STOPPED tasks so a cooperatively
stopped task drops out of the service's running total immediately.
DescribeTasks now keeps the task RUNNING with desiredStatus=STOPPED until the
container is actually reaped, matching AWS ordering and eliminating the port
race.
* test: cover StopTask reap paths — poll stop-inbox drain, unplaced force-stop, agent stopTask edges
* ci: retrigger PR checks
- RegisterTaskDefinition rejects container secrets[] (InvalidParameterException)
and warns on unsupported log drivers instead of silently dropping them.
- Capture logConfiguration; only host-side json-file is collected, other drivers
warn at register and reach the agent for parity. Document json-file retrieval.
- Plumb executionRoleArn taskdef -> assign -> agent; the agent assumes it to
authorize ECR pulls, falling back to the instance role when unset.
- Add deployment objects with a health-gated rolling update honoring
deploymentConfiguration minimumHealthyPercent/maximumPercent, plus a deployment
circuit breaker with optional rollback to the last-good task definition.
On startup the agent had no reconcile pass: Run registered, heartbeat, and
immediately polled assignments with an in-memory dedup map. After a restart the
gateway re-delivers the instance's assignments and the agent re-ran them,
orphaning containers still running from before and double-starting tasks.
Add a reconcile() pass that runs once before polling: it lists the runtime's
containers, and for each task still running in this cluster re-registers its IAM
credentials, re-attaches the exit-wait, and refreshes RUNNING on the gateway.
The adopted task set seeds pollAssignments so re-delivered assignments are acked
but not re-run.
- runtime: add a label-agnostic List(ctx) []Container to the Runner seam, with a
containerd implementation and fake support.
- taskLabels: stamp credID / taskRoleArn / eniMac (when set) so a container is
self-describing enough to re-register creds and tear down its netns on adoption.
- pollAssignments takes the seed dedup map.
Best-effort: a nil runner or a List error degrades to today's poll+run behaviour.
* feat(ecsgw): on-VM SigV4 client for the ECS agent→gateway channel
Adds internal/ecsgw, the twin of internal/eksgw: a TLS + SigV4 (service "ecs")
client the ecs-agent will use to reach the AWS gateway over HTTPS instead of
connecting to host NATS directly. Calls are AWS JSON 1.1 with an X-Amz-Target
action; the gateway relays onto ecs.* host-side, keeping NATS cluster-internal.
* feat(ecs): SubmitTaskStateChange gateway action → recordTaskState
Wires the AWS-API SubmitTaskStateChange action end to end (gateway action →
ecs.SubmitTaskStateChange NATS → daemon → Service.SubmitTaskStateChange) so a
gateway-routed agent reports task state without touching the NATS bus. The
handler maps the SDK input onto the same bus.TaskState shape and converges on
recordTaskState; the account is authoritative from the SigV4 caller, so an
instance cannot report state for another account's task.
* feat(ecs): durable assign KV inbox + PollAssignments gateway action
Scheduler writes task assigns into a per-instance KV inbox
(clusters/{cluster}/assignments/{instance}/{task}) instead of a
fire-and-forget core-NATS publish, and a new PollAssignments gateway
action lets a gateway-routed agent drain its inbox over TLS+SigV4.
At-least-once: an unacked assign is re-delivered on the next poll;
the agent acks accepted assigns (AckTaskIDs) and STOPPED transitions
reclaim stale inbox entries. The Poll response carries bus.Assign with
an RFC3339 time, so it is encoded with encoding/json (RawJSONActions)
rather than the jsonutil epoch-second marshaler.
* feat(ecs-agent): rewire control-plane off NATS onto the AWS gateway
The agent no longer connects to NATS. It registers, heartbeats, reports
task state, and receives assignments entirely through the AWS gateway
over TLS+SigV4, using seeded IAM credentials — keeping the NATS bus
host-internal and closing the trust-boundary gap (a tenant container
instance must not hold a shared bus token).
- controlPlane seam over ecsgw.Client replaces the NATS publisher:
Register (RegisterContainerInstance), SubmitTaskState
(SubmitTaskStateChange), PollAssignments.
- Heartbeat folds into a periodic idempotent re-register (refreshes
LastSeen); bus.Heartbeat is dropped from the agent.
- subscribeAssign (NATS subscribe) becomes a poll loop: drain the
inbox, dispatch each assign once, ack accepted taskIDs on the next
poll (at-least-once).
- config: ECS_ACCESS_KEY / ECS_SECRET_KEY / ECS_POLL_INTERVAL added,
ECS_NATS_URL removed; cloud-init initd seeds the IAM creds.
Tests move from the NATS publisher fake to a controlPlane fake.
* feat(ecs): cloud-init cred-seed + ecs-node bring-up script
ECS container instances are plain EC2 booted from the spinifex-ecs-node
AMI (AWS-faithful: no ECS-specific launch API). This renders the
cloud-init user-data that seeds /etc/spinifex-ecs/agent.env (gateway
URL/CA/region/cluster + IAM creds) and the gateway CA, then runs the
instance. The agent registers, heartbeats, polls assignments, and
reports task state entirely through the AWS gateway over TLS+SigV4 —
never NATS.
The guest dials the customer-facing gateway address (network advertise
IP), not the mgmt bridge, mirroring the EKS GatewayURL/AddonGatewayURL
split. Seeds the system key for now; scoped per-instance creds are a
follow-up (4g task-role endpoint).
* fix(ecs): reconcile dev merge — restore #418 ENI release + netns wiring
The 'Merge branch dev' resolution dropped code where Sprint 4d (#418,
awsvpc ENI-per-task) and the gateway control-plane rewrite (#419) touch
the same paths:
- recordTaskState STOPPED branch: reclaimTaskENI was clobbered by
reclaimAssignInbox; both are needed (release the task ENI AND drain the
KV inbox). Restores TestRecordTaskState_Awsvpc_ReleasesENIOnStopOnce.
- ecs-agent Agent: the netns field, its init, and the setupTaskNetns/
teardownTaskNetns wrappers were lost when the controlPlane Agent struct
won the merge, leaving taskrun.go calling undefined methods.
- eni_test assign assertion read the assign over NATS; #419 delivers it via
the durable KV inbox, so it now polls via PollAssignments.
- taskrun_test netns cases used the removed historyPub fake; switched to
fakeCP to match the controlPlane seam.
* feat(ecs): awsvpc ENI-per-task control plane (Sprint 4d)
Scheduler owns the task-ENI lifecycle for awsvpc mode: allocate from the
task subnet on placement, hot-plug onto the container instance, plumb ENI
identity through the assign payload + task record, and detach+delete on
STOPPED (graceful + reaper, idempotent leak guard). bridge/host unchanged.
* feat(ecs-agent): awsvpc guest-side task netns from hot-plugged ENI
The agent builds a per-task network namespace for awsvpc tasks: it finds the
hot-plugged ENI NIC by MAC, moves it into /var/run/netns/ecs-<taskID>, and DHCPs
the OVN-assigned ENI IP. The container then joins that netns via the OCI network
namespace path; bridge/host tasks keep the host (VM) netns as before.
* build(ecs-node): add iproute2 for awsvpc task netns
The ecs-agent builds awsvpc task network namespaces with `ip netns`, which
busybox's `ip` applet does not implement. Install iproute2 in the ecs-node AMI;
udhcpc (for the in-netns ENI DHCP lease) is already provided by busybox.
Add the ECS v1 scheduler control loop and end-to-end RunTask flow:
- handlers/ecs: per-account KV-backed Service (clusters, task definitions,
container instances, tasks), bin-pack/spread/random placement with CAS
capacity reservation, and a leader-elected Scheduler that owns the Layer-2
bus subscriptions (register/heartbeat/task-state) plus a heartbeat reaper.
- gateway/ecs: wire CreateCluster, Describe/ListClusters,
Register/Describe/ListTaskDefinitions, Register/Describe/ListContainerInstances,
RunTask, Describe/ListTasks onto the daemon over NATS.
- daemon: construct the Service, start the Scheduler goroutine, subscribe the
ECS action subjects.
- ecs-agent: subscribe the per-instance assign subject, pull and run each
container via containerd, and report task state back on the bus.
Julian Sommer