SysAdmin 5918305fd7 fix(linux/build): find self via docker inspect, cgroupns hides cgroup path (M1.1 iter22) ...

iter21's /proc/self/cgroup approach hit:

    build.sh: cgroup contents:
    0::/

Empty path — act_runner runs job containers with cgroupns enabled, so
the in-container view of cgroup paths is rooted at the namespace, with
no trace of the host-side container ID. Same blocker as `hostname`.

The host docker daemon does know who we are, and we have its socket.
We're the only running container with /workspace/SilverLABS/SilverMetal
as a mount destination (concurrency: 1 in the workflow), so iterate
docker ps and match by mount destination. Found CID becomes the
--volumes-from argument; if no match, dump docker ps to the log and
fail loud.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-05-07 18:04:41 +01:00

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