* fix(ecs): enforce or refuse container runtime fields (TFC-0040)
user, mountPoints, volumesFrom, readonlyRootFilesystem, privileged,
pseudoTerminal, interactive, linuxParameters, systemControls,
startTimeout and stopTimeout registered successfully but were never
stored, sent to the agent, enforced, or echoed back on describe.
Store and echo the fields the agent can enforce (user, readonly root
filesystem, privileged, pseudo terminal, interactive, systemControls,
capability add/drop, start/stop timeout), apply them through containerd
via OCI spec options and a graceful Stop, and refuse at
RegisterTaskDefinition the fields the agent cannot honor (mountPoints,
volumesFrom, linuxParameters.devices/initProcessEnabled/
sharedMemorySize/tmpfs). Refusal only triggers on a value that asks
for the restriction; empty lists and false/unset flags are accepted
and echoed as before.
* test: move the bus wire-contract test to an external package
* fix(ecs-agent): release an interactive container's stdin so its copier exits
* fix(ecs): return a caller-supplied empty collection instead of omitting it
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(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.
* feat(ecs): ecs-agent skeleton + containerd image pull (Sprint 4c)
Add the ecs-agent binary that runs inside an ECS container instance: it
resolves host identity from IMDS, registers on the Layer-2 NATS bus, and
heartbeats while alive. Image pulls go through a containerd-backed
ImagePuller behind an interface, with an ECR resolver that mints
GetAuthorizationToken creds from the instance role.
Extract the IMDS-credential and ECR-auth flow out of
ecr-credential-provider into internal/imdscreds and internal/ecrauth so
the agent and the kubelet provider share one implementation.
Add spinifex/handlers/ecs/bus as the single source of truth for Layer-2
subject builders and wire payloads, shared by the agent now and the
scheduler in Sprint 4e.
* build: pin genproto via replace to fix containerd/v2 ambiguous import
go.opencensus.io -> grpc@v1.33.2 drags the pre-split monolithic genproto
into the module graph; it still ships googleapis/rpc/status, which collides
with the split genproto/googleapis/rpc module that containerd/ttrpc needs.
The main module never imports the monolith, so a plain require bump is
dropped by 'go mod tidy'. Pin it with a replace to a post-split version so
the fix survives tidy and contributors can run 'go mod tidy' freely.
* fix(ecs): agent boot failsafes from runtime verify
- Build the ECR gateway HTTP client lazily on first image pull instead of
at boot. A missing/malformed gateway CA no longer kills the agent before
it can register + heartbeat, matching the best-effort containerd path.
- Actively probe containerd with IsServing in runtime.New. The client dials
lazily, so a dead socket previously slipped past the boot-time
'containerd unavailable' warn and only surfaced on the first pull.
- Make the heartbeat interval configurable via ECS_HEARTBEAT_INTERVAL
(default 30s) for test/verify and slow-link tuning.
Josh Siviour