feat: Add ephemeral-docker.sh for running docker in temporary environment #474
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…ment This script creates an isolated temporary docker environment that: - Starts temporary containerd and dockerd with unique state directories - Cleans up completely on exit (processes, mounts, files) - Handles signals and timeouts properly - Preserves command exit codes Useful for running docker commands before the system dockerd is started, e.g., during early boot in init scripts.
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Summary
Add a utility script that creates an isolated temporary docker environment for running docker commands before the system dockerd is started.
Use Case
During early boot (e.g., in
init_script), we may need to run docker containers to install software before the system dockerd service starts. This script provides a clean way to do that.Features
Usage
Test plan
ephemeral-docker.sh run --rm hello-world