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Josh Siviour
9c76df3373
* 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.