The workflow asked for a `self-hosted` label. No runner on the instance
offers one, so the run would have sat in "Waiting" forever — no error, no
message, nothing to notice. The existing global runner elycon-runner-01
offers `docker` and `ubuntu-latest`, so both workflows now ask for
`ubuntu-latest`, the same label ci.yml already used.
That correction exposed a second thing the first version glossed over.
act_runner starts a container per job; mounting the Docker socket into
the *runner* does not put it in the *job*. Whether this job can reach the
host's daemon depends on the runner's config.yaml, which is not visible
from here — and the runner is global, so changing it affects every
repository on the instance, not just this one.
Rather than guess, the workflow now measures it in its first step and
fails with the fix if it cannot: which config lines to add for the
socket, or that SSH is the other way. Without that, the run would have
died three steps later on a message nobody could act on.
Both branches of the check were exercised: docker absent prints the
first message, docker present with no reachable daemon the second.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Maximilian Stubhan
d574d3c9d6