Jenkins Kubernetes Plugin URL Connection Fails After Some Time

Question

I run into a strange issue, as the title suggests.

I am running my Jenkins on a Kubernetes cluster on IBM Cloud. I used the kubernetes plugin to configure a cloud and dynamically create a slave container to run jobs.

When I set up this cloud configuration, I provided the Kubernetes Public Service Endpoint URL (as I found on some other guides) of the cluster that Jenkins is on, as the Kubernetes URL. I can test it and it works successfully.

Strangely, after running a few jobs, it starts to give me errors that It cant start the containers.

If I go back into the cloud configuration, and click "Test Connection", it now throws an error: Error testing connection https://<Public Service Endpoint URL>: null. If I restart Jenkins, it works again.

Any advise is much appreciated! Thanks!

Answer 1

I am not sure why it sometimes worked with using the Public Service Endpoint, but posting this for future people:

1. I created clusterrolebinding as per this thread
2. I created a credential (type: secret text) and used it with "Kubernetes URL" of https://kubernetes.default.svc.cluster.local for the cloud configuration