How to use custom images?

[andershagbard]

Hi!

I am very new to Docker and Kubernetes, so this might be a noobish question.

I've tried to make a custom image with nodejs, npm and yarn installed. The image can be found in andershagbard/arc.
It's just a Dockerfile with:

FROM summerwind/actions-runner:latest

RUN sudo apt-get update -y
RUN sudo apt install nodejs -y
RUN sudo apt install npm -y
RUN sudo rm -rf /var/lib/apt/lists/*

# Install Yarn
RUN sudo npm install --global yarn

When I try to add this image, Kubernetes keeps trying to build the runners, but always fail. It deletes the runner before I can see the error message.

How do I proceed from here? I want to use a custom image, and not use something like setup-node in my actions.

[abinmn]

Instead of running the apt in sudo, you could try setting the user to root and at the end of the file change the user to runner.'

FROM summerwind/actions-runner:latest

USER root

RUN apt-get update -y \
        && apt install nodejs npm -y \
        && rm -rf /var/lib/apt/lists/* \
        && npm install --global yarn

USER runner

[andershagbard]

Did not resolve my issue, but this Dockerfile is probably better than my current.

[ellisvalentiner]

I actually found that installing tools as root lead to permissions issues, so I set USER runner beforehand.

[toast-gear]

When I try to add this image, Kubernetes keeps trying to build the runners, but always fail. It deletes the runner before I can see the error message.

I don't understand this sentence however you can use stern to preemptively tail the logs so you can see what is going on, it's a suggested tool in the troubleshooting guide https://github.com/actions-runner-controller/actions-runner-controller/blob/master/TROUBLESHOOTING.md#tools

[andershagbard]

I will try your tool if the above answer isn't working.

To clarify myself; Kubernetes tries to build the runner (I think). It tries to build it's container, then fails, then deletes the runner, and retries the process on a new runner.

[andershagbard]

Seems to work after i built the image with platform linux/amd64.

Now I am just getting permission denied error on yarn.

[andershagbard]

Got it running now.

Final file:

FROM summerwind/actions-runner:latest

USER root

RUN curl -sL https://deb.nodesource.com/setup_18.x | bash - 
RUN apt-get install -y nodejs
RUN npm install --global yarn

USER runner

[toast-gear]

Cracking, thanks for psoting your final file! I thought I'd highlight latest tag may be going away and you should instead use the "latest" tag for the OS version you want ubuntu-20.04 or ubuntu-22.04. At some point 20.04 image will stop being produced so I'd suggest building from 22.04. https://github.com/actions-runner-controller/actions-runner-controller/pkgs/container/actions-runner-controller%2Factions-runner https://hub.docker.com/r/summerwind/actions-runner/tags

[samus-aran]

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