Running commands in sidecar containers

[AndreaGiardini]

Hey everyone

I've been trying to set up self hosted runners on our k8s infrastructure. The idea is to run tests for ML/AI code that is built on top of jupyter notebooks.

I managed to add a sidecar container to the runners with the image that we use to build our models. It exposes the notebook interface on localhost:8888. Now i'm trying to get the test running. The problem is that all the commands are run on the "runner" container and not on the "notebook" container.

Is there a way for the runner container to trigger commands on the sidecar container? I had a look in the README and issues but I haven't found much about it.

[mumoshu]

@AndreaGiardini Hey! Well sorry to say, I'm not sure how this relates to actions-runner-controller at all.

Is something running in your sidecar container exposing localhost:8888 has some API that can be called from within your Actions workflow job that is running in the runner container?

If so, I'd suggest you to write some GitHub Actions job "step" that uses some tool to call the API against localhost:8888.

[mumoshu]

Why are you using sidecar containers in the first place? Can't you just docker run or kubectl run your jupyer notebook instance and feed some data from within your Actions job that is run in your runner container?