Image-registry operator not available after RHOCP installation

Issue

• After installation of RHOCP on Red Hat OpenStack Platform, the image-registry operator is not available.

$ oc get clusteroperator
NAME                                       VERSION   AVAILABLE   PROGRESSING   DEGRADED   SINCE
authentication                             4.5.6     True        False         False      38d
cloud-credential                           4.5.6     True        False         False      38d
cluster-autoscaler                         4.5.6     True        False         False      38d
config-operator                            4.5.6     True        False         False      38d
console                                    4.5.6     True        False         False      35d
csi-snapshot-controller                    4.5.6     True        False         False      35d
dns                                        4.5.6     True        False         False      38d
etcd                                       4.5.6     True        False         False      38d
image-registry
ingress                                    4.5.6     True        False         False      38d
insights                                   4.5.6     True        False         False      38d
kube-apiserver                             4.5.6     True        False         False      38d
kube-controller-manager                    4.5.6     True        False         False      38d
kube-scheduler                             4.5.6     True        False         False      38d
kube-storage-version-migrator              4.5.6     True        False         False      35d
machine-api                                4.5.6     True        False         False      38d
machine-approver                           4.5.6     True        False         False      38d
machine-config                             4.5.6     True        False         False      35d
marketplace                                4.5.6     True        False         False      35d
monitoring                                 4.5.6     True        False         False      38d
network                                    4.5.6     True        False         False      38d
node-tuning                                4.5.6     True        False         False      38d
openshift-apiserver                        4.5.6     True        False         False      38d
openshift-controller-manager               4.5.6     True        False         False      38d
openshift-samples                          4.5.6     True        False         False      38d
operator-lifecycle-manager                 4.5.6     True        False         False      38d
operator-lifecycle-manager-catalog         4.5.6     True        False         False      38d
operator-lifecycle-manager-packageserver   4.5.6     True        False         False      35d
service-ca                                 4.5.6     True        False         False      38d
storage                                    4.5.6     True        False         False      38d

• Check image-registry pod logs.

$ oc logs cluster-image-registry-operator-xxxx
E1020 06:54:06.631909      13 nodecadaemon.go:82] NodeCADaemonController: unable to sync: config.imageregistry.operator.openshift.io "cluster" not found, requeuing
E1020 06:54:06.631932      13 clusteroperator.go:96] unable to sync ClusterOperatorStatusController: config.imageregistry.operator.openshift.io "cluster" not found, requeuing
I1020 06:54:06.631978      13 caconfig.go:75] unable to get the service name to add service-ca.crt
E1020 06:54:06.632063      13 imageregistrycertificates.go:94] ImageRegistryCertificatesController: unable to sync: config.imageregistry.operator.openshift.io "cluster" not found, requeuing
E1020 06:54:06.636007      13 imageconfig.go:109] ImageConfigController: unable to sync: config.imageregistry.operator.openshift.io "cluster" not found, requeuing
E1020 06:54:06.637069      13 nodecadaemon.go:82] NodeCADaemonController: unable to sync: config.imageregistry.operator.openshift.io "cluster" not found, requeuing
E1020 06:54:06.637072      13 clusteroperator.go:96] unable to sync ClusterOperatorStatusController: config.imageregistry.operator.openshift.io "cluster" not found, requeuing
E1020 06:54:06.660002      13 controllerimagepruner.go:306] (image pruner) unable to sync: unable to apply objects: failed to create object *v1beta1.CronJob, Namespace=openshift-image-registry, Name=image-pruner: config.imageregistry.operator.openshift.io "cluster" not found, requeuing
E1020 06:54:06.660391      13 controller.go:311] unable to sync: Failed to authenticate provider client: Post https://X.X.X.X:YYYY//v3/auth/tokens: x509: certificate signed by unknown authority, requeuing
E1020 06:54:06.667932      13 clusteroperator.go:96] unable to sync ClusterOperatorStatusController: config.imageregistry.operator.openshift.io "cluster" not found, requeuing