gitlab k3s runner WARNING: Checking for jobs... failed x509: certificate signed by unknown authority

Question

I have an issue with a gitlab-runner installed via the application panel on gitlab to a k3s rancher cluster. It was working fine then today gitlab was restarted and started giving out this error.

I found out where the gitlab certificate is and where to copy it but I do not have sudo on the POD :

bash-5.0$ cd gitlab-runner/
bash: cd: gitlab-runner/: Permission denied
bash-5.0$ pwd

If i do not install the Runner via the application panel from the Gitlab site it doesn't work properly (meaning I install it via helm with -f values but it will not work with Autodevops and it will not create a pod for each CI as expected)

Any workaround or solution would be greatly appreciated :)

Thank you in advance.

Answer 1

After many tests and failures. The only way to get it working was to set up an actual domain name and change GitLab's external_url to that so that Let's encrypt can get a renewed certificate since then it started working fine.