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I connected my existing kubernetes cluster to gitlab using the gitlab integration in myproject/operations/kubernetes on the left tab pane in the gitlab gui.

After having installed helm + gitlab runner from the gitlab GUI applications, the new gitlab runner is visible in the project runners.

What I don't understand from the gitlab documentation is how do you modify the new runner's configuration. You cannot use the gitlab-runner cli, like for a non-kubernetes runner, because the runner in running in a pod, not on the host machine, right?

I am not sure which part of the runner doc applies to my case. What to use if I wanted to make the runner use another executor or build from another image ? (default image of the pod is ubuntu 16 for me).

If you have already installed and configured a runner installed this way, from the GUI, please tell me how. Thank you.

Gitlab 12.9.2 hosted

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Installing kubernetes integration on gitlab

In Admin Area -> Overview -> Runners, the instructions they give are:

  1. Install GitLab Runner
  2. Specify the following URL during the Runner setup: https://<your gitlab hostname>/
  3. Use the following registration token during setup: <insert-token-here>
  4. Start the Runner!

I'm on version 13.13.0 but I don't remember the instructions changing from version 12.x.x.

Project specific runners

As for your question regarding configuration, I'm a little bit confused if you're looking for something beyond those instructions. If you want to set up a runner specific to a project, you can go to a project then navigate to Settings -> CI/CD -> Runners -> Specific Runners. There, there are more instructions on setting up project-specific runners.

Further configuring the runner

EDIT: The executor entirely depends on how the runner itself is installed. If it's installed on a kubernetes cluster, then it must be the kubernetes executor. That will affect your pipeline. I think you can create another one if you install another one with the runner chart. You can also use Helm Tiller.

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  • Thanks, this I already did. What I don't understand it how to further configure the runner, e.g. change its executor (docker, shell, virtualbox...) or change the image it uses (default is ubuntu 16)
    – NanoPish
    Dec 16 '20 at 16:41
  • also, gitlab created one runner. what if I wanted a second one ? am I missing something in the GUI?
    – NanoPish
    Dec 16 '20 at 16:51
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    Oh, I think the executor entirely depends on how the runner itself is installed. If it's installed on a kubernetes cluster, then it must be the kubernetes executor. That will affect your pipeline. I think you can totally create another one if you install another one with the runner chart. You can also use Helm Tiller. Dec 16 '20 at 16:56
  • thanks I will try configuring the runner with chart or helm then ! add your comment to the answer so I can accept it
    – NanoPish
    Dec 16 '20 at 17:02
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    One thing I might add to your question are the comments you sent to me about the runner executor. Dec 16 '20 at 17:20

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