Description:
This is an issue found when use Quay 3.3 Operator to deploy Quay, when in the quayecosystem CR file specify to use official postgresql image(https://hub.docker.com/_/postgres?tab=description) to deploy Quay Database, the POD of Quay DB was failed to start, POD report error messge "chmod: changing permissions of '/var/lib/postgresql/data': Operation not permitted" , pls refer to the screenshots from OCP POD Consle.

Quay Operator image: Operator Image: quay.io/quay/quay-rhel8-operator:1.1.0-1

Steps:
1. Configure Quay CR file to speficy using official postgresql as Quay Database
2. Run "oc create -f quayecosystem_cr_existingdb.yaml"
3. Check POD status

Expected Results:
The Quay CR can be deployed successfully.

Actual Results:
The POD of Quay DB was failed to start.

lizhang@lzha-mac Quay3.3_operator_testing % oc get pod
NAME READY STATUS RESTARTS AGE
demoexistingdb8-quayecosystem-quay-postgresql-579dc85df8-m8zmt 0/1 CrashLoopBackOff 7 11m
demoexistingdb8-quayecosystem-redis-7d85cd9b58-9xk6x 1/1 Running 0 12m
quay-operator-5676f6574b-49fh9 1/1 Running 0 30h
lizhang@lzha-mac Quay3.3_operator_testing % oc logs demoexistingdb8-quayecosystem-quay-postgresql-579dc85df8-m8zmt
chmod: changing permissions of '/var/lib/postgresql/data': Operation not permitted

lizhang@lzha-mac Quay3.3_operator_testing % cat quayecosystem_cr_existingdb.yaml
apiVersion: redhatcop.redhat.io/v1alpha1
kind: QuayEcosystem
metadata:
name: demoexistingdb8-quayecosystem
spec:
quay:
imagePullSecretName: redhat-pull-secret
image: quay.io/quay/quay:v3.3.0-3
configSecretName: configuser
registryStorage:
persistentVolumeAccessModes:

• ReadWriteOnce
  persistentVolumeSize: 60Gi
  enableRepoMirroring: true
  replicas: 2
  resources:
  requests:
  memory: "2048Mi"
  cpu: "1000m"
  limits:
  memory: "4096Mi"
  cpu: "2000m"
  SuperuserCredentialsSecretName: superuser
  database:
  volumeSize: 30Gi
  image: docker.io/postgres
  envVars:
• name: DEBUGLOG
  value: "true"
  clair:
  enabled: true
  image: quay.io/quay/clair-jwt:v3.3.0-1
  imagePullSecretName: redhat-pull-secret
  updateInterval: "60m"