Upgrding a cluster from 4.16 to 4.17 leaves orphaned resources in the openshift-console-operator namespace. A fresh 4.17 cluster does not have the console-conversion-webhook. A cluster upgraded form 4.16 to 4.17 does not properly clean up the console-conversion-webhook deployment and service.

Based on this commit, 4.17 should not contain these resources: https://github.com/openshift/console-operator/commit/2a8b852f2b3c9c9c3e0b5113839f1c24631d0ceb#diff-e3df89e09c4af23be4f94ebfc53fb5f0160e0befcdb791c50a48999499c8aae6

    4.17.z

    Every time

    1. Create 4.16 cluster
    2. Upgrade to 4.17
    3. Check openshift-console-operator namespace
    

$ oc -n openshift-console-operator get all
Warning: apps.openshift.io/v1 DeploymentConfig is deprecated in v4.14+, unavailable in v4.10000+
NAME                                              READY   STATUS    RESTARTS   AGE
pod/console-conversion-webhook-5879bddc8d-kqwnn   1/1     Running   0          84m
pod/console-operator-545f6d8695-pmppt             1/1     Running   0          31m

NAME              TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)    AGE
service/metrics   ClusterIP   172.21.177.119   <none>        443/TCP    103m
service/webhook   ClusterIP   172.21.124.240   <none>        9443/TCP   103m

NAME                                         READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/console-conversion-webhook   1/1     1            1           103m
deployment.apps/console-operator             1/1     1            1           103m

NAME                                                    DESIRED   CURRENT   READY   AGE
replicaset.apps/console-conversion-webhook-5879bddc8d   1         1         1       103m
replicaset.apps/console-operator-545f6d8695             1         1         1       31m
replicaset.apps/console-operator-687b59b57              0         0         0       103m

# A fresh 4.17 cluster (no upgrade)
$ oc -n openshift-console-operator get all
Warning: apps.openshift.io/v1 DeploymentConfig is deprecated in v4.14+, unavailable in v4.10000+
NAME                                    READY   STATUS    RESTARTS      AGE
pod/console-operator-545f6d8695-krzbj   1/1     Running   1 (71m ago)   71m

NAME              TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)   AGE
service/metrics   ClusterIP   172.21.223.44   <none>        443/TCP   89m

NAME                               READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/console-operator   1/1     1            1           89m

NAME                                          DESIRED   CURRENT   READY   AGE
replicaset.apps/console-operator-545f6d8695   1         1         1       89m