How to set default password for a user in percona-postgresql-operator

[ntqp97]

Report

I am trying to set up PostgreSQL in a Kubernetes cluster (in my local environment with kind), using the percona-postgresql-operator. I am trying to set a default password for a user, but it doesn't work

users:
    - name: postgres
      databases:
        - quotesdb
      options: "SUPERUSER"
      password:
        type: ASCII
      secretName: postgres-user-secret

More about the problem

I tried creating a secret named postgres-user-secret with a key named password however this gets overwritten when the pods related to percona pg starts up. Is it possible to setup a default password?

Steps to reproduce

Versions

1. Kubernetes
2. Operator
3. Database

Anything else?

No response

[gkech]

Hello @ntqp97

Recently, we introduced an improvement under this ticket: https://perconadev.atlassian.net/browse/K8SPG-570, which is going to be released with version 2.8 in a few weeks.

You can create a secret like that

apiVersion: v1
data:
  password: YWJjZDEyMzQ1Njc4OQ==
kind: Secret
metadata:
  name: cat-credentials
type: Opaque

Configure it on the cr.yaml like the following:

  users:
    - name: cat
      databases:
        - zoo1
      options: "SUPERUSER"
      password:
        type: ASCII
      secretName: "cat-credentials"
      grantPublicSchemaAccess: false    

And end up with your own default password configured.

[ntqp97]

Looking forward to the 2.8 release — this feature will definitely simplify credential management.

Thanks again!