# Task ID: 142

**Title:** Docker orchestrator ephemeral container support

**Status:** pending

**Dependencies:** 140

**Priority:** medium

**Description:** Update DockerContainerManager to handle new ContainerSpec fields

**Details:**

In DockerContainerManager (src/mcpd/src/services/docker/):
1. Map restartPolicy to Docker restart policy
2. Set WorkingDir in container config
3. Create volumes as Docker volumes, add Binds/Mounts
4. For initContainers: run each sequentially before main container, fail if any init fails
5. Docker doesn't have native init container support, so implement as sequential container runs that populate shared volume

**Test Strategy:**

Unit tests: test container spec translation. Integration test: create container with init, verify volume populated before main container runs.