Self-hosted runners with rootless Docker broken after 2.296.1

[quulah]

Describe the bug
We run self-hosted runners with rootless Docker set up.

After 2.296.1 hit, jobs with container: that worked previously, have now started failing in early stages.

Specifically in "Initializing containers" "Starting job container".

To Reproduce

Expected behavior

Well, it should work. :)

Runner Version and Platform

Version of your runner?

2.296.1

OS of the machine running the runner? OSX/Windows/Linux/...

Ubuntu 20.04.4 LTS

What's not working?

unable to resolve docker endpoint: context "rootless" does not exist

My best guess is that it is trying to talk to the /var/run/docker.sock instead of the rootless socket of the runner user, but setting DOCKER_HOST in the jobs does not help as it previously has for some cases such as building a container image within.

Job Log Output

Runner and Worker's Diagnostic Logs

[quulah]

There's #827 which is most likely related, but until the recent update to the runner this has actually worked for us.

[quulah]

Pinning to 2.296.0 seems to have helped and our builds aren't failing anymore.

While I was at it, I set the DOCKER_HOST to point at the correct socket in the runner's .env. Not quite sure if that has an effect on this or not, but doesn't seem to hurt either.

[thboop]

Thanks for the report, we are working on a fix!

Hello everyone! Is this issue related to this community feedback or should I open/add it to a different one?

[quulah]

@hjokunbus I'm unsure whether your issue is related or not, but I suggest opening a new one in any case. Looks a bit different.

And 2.296.2 seems to have fixed our problem, so I'll close this.