Default image-pruner pods do not have toleration for tainted nodes.

Issue

• If all the nodes are tainted, the image-pruner cronjobs remain in pending state due to missing tolerations.

# oc get pods -n openshift-image-registry
NAME                                   READY       STATUS    RESTARTS    AGE    NODE
image-pruner-1624924800-m5rxg           1/1         Pending     0        5s   <none>        

• There is no supported way to provide tolerations to image-pruner pods.