Please, answer some short questions which should help us to understand your problem / question better?

• Which image of the operator are you using? e.g. ghcr.io/zalando/postgres-operator:v1.13.0
  ghcr.io/zalando/postgres-operator:v1.14.0
• Where do you run it - cloud or metal? Kubernetes or OpenShift? [AWS K8s | GCP ... | Bare Metal K8s]
  AWS EKS and HuaweiCloud CCE
• Are you running Postgres Operator in production? [yes | no]
  No
• Type of issue? [Bug report, question, feature request, etc.]
  feature request

Some general remarks

Hi guys, I'm deploy postgresql cluster on my K8s cluster, all looks good. But when I want to use my private registry image to deploy postgresql cluster, I found I can't set imagePullSecret for statefulSet. So this issue is a feature request, I want to set imagePullSecret in CR