The pipelock image is distroless and does not contain /etc/pipelock/, so
docker cp to /etc/pipelock/pipelock.yaml fails with "Could not find the
file /etc/pipelock in container" — docker cp does not create missing
intermediate parent directories when targeting a stopped container, and
no shell is available in the image for a mkdir shim. Move the config
file to /etc/pipelock.yaml (directly under /etc, which always exists)
and update the --config argv to match. Also surface docker cp stderr in
the die message so future failures of this sort are debuggable.
Assisted-by: Claude Code
didericis
f6c943fcad