Air Gap environment (aka disconnected environment)

When we have our cluster on a air gap or proxy environment, we need to copy the actual images into our custom registry and update image details via environment variables on the operator deployment under the container tekton-operator-lifecycle as follows, This will allow us to use images from our custom registry.

Sample: images as environment variable in operator deployment

apiVersion: apps/v1
kind: Deployment
metadata:
  name: tekton-operator
  namespace: tekton-operator
spec:
  template:
    spec:
      containers:
        - name: tekton-operator-lifecycle
          env:
            - name: IMAGE_DASHBOARD_TEKTON_DASHBOARD
              value: custom-example.com/tektoncd/dashboard:v0.48.0
            - name: IMAGE_JOB_PRUNER_TKN
              value: custom-example.com/tektoncd/tkn:v0.31.0

List of image environment variables

Images supported in kubernetes

Images supported in OpenShift

Supports all the images listed above in kubernetes and following are specific to OpenShift