Stanza cannot be set for backups in k8s

Overview

I am trying to backup/restore to an S3 bucket using the non-default stanza (which is "db"), but I do not manage to set a stanza on the backup.

I am following the guide from https://www.crunchydata.com/blog/cloud-data-sources-for-the-postgres-operator-for-kubernetes

Environment

Platform: Kubernetes
PGO Image Tag: ubi8-5.1.0-0
Postgres Version: 14

Steps to Reproduce

I created the secrets as described in the tutorial
I create a postgresCluster like:

apiVersion: postgres-operator.crunchydata.com/v1beta1
kind: PostgresCluster
metadata:
  name: hippo-source
spec:
  image: registry.developers.crunchydata.com/crunchydata/crunchy-postgres:centos8-14.0-0
  postgresVersion: 14
  instances:
    - name: instance1
      dataVolumeClaimSpec:
        accessModes:
        - "ReadWriteOnce"
        resources:
          requests:
            storage: 1Gi
  backups:
    pgbackrest:
      image: registry.developers.crunchydata.com/crunchydata/crunchy-pgbackrest:centos8-2.36-0
      manual:
        repoName: repo1
      configuration:
      - secret:
          name: s3-key
      global:
        repo1-path: /rc-k8s
      repos:
      - name: repo1
        s3:
          bucket: wp-backup-db-2
          endpoint: s3.eu-central-1.amazonaws.com
          region: eu-central-1

To restore the data I want to use the following postgresCluster (taken from tutorial). Here I can set a stanza name, but I cannot do so in the backup!

apiVersion: postgres-operator.crunchydata.com/v1beta1
kind: PostgresCluster
metadata:
  name: hippo
spec:
  dataSource:
    pgbackrest:
      stanza: rc-k8s
      configuration:
      - secret:
          name: s3-key
      global:
        repo1-path: /rc-k8s
      repo:
        name: repo1
        s3:
          bucket: wp-backup-db-2
          endpoint: s3.eu-central-1.amazonaws.com
          region: eu-central-1
  image: registry.developers.crunchydata.com/crunchydata/crunchy-postgres:centos8-14.0-0
  postgresVersion: 14
  instances:
    - name: instance1
      dataVolumeClaimSpec:
        accessModes:
        - "ReadWriteOnce"
        resources:
          requests:
            storage: 1Gi
  backups:
    pgbackrest:
      image: registry.developers.crunchydata.com/crunchydata/crunchy-pgbackrest:centos8-2.36-0
      repos:
      - name: repo1
        volume:
          volumeClaimSpec:
            accessModes:
            - "ReadWriteOnce"
            resources:
              requests:
                storage: 1Gi

I tried to set the stanza in the backup of hippo-source postgresCluster like:

  backups:
    pgbackrest:
      image: registry.developers.crunchydata.com/crunchydata/crunchy-pgbackrest:centos8-2.36-0
      manual:
        repoName: repo1
        options:
         - --type=full
         - --stanza=rctest

But then the error message states

│ hippo-source-backup-zsk7--1-ws4kq time="2022-05-20T10:54:21Z" level=info msg="command to execute is [pgbackrest backup --stanza=db --repo=1 --type=full --stanza=rctest]"
│ hippo-source-backup-zsk7--1-xkmsd time="2022-05-20T10:54:20Z" level=info msg="stderr=[ERROR: [031]: option 'stanza' cannot be set multiple times\n]"

I had a look into the source code and a quick search found this piece of code in bgbackrest.go:

// generateBackupJobSpecIntent generates a JobSpec for a pgBackRest backup job
func generateBackupJobSpecIntent(postgresCluster *v1beta1.PostgresCluster,
    repo v1beta1.PGBackRestRepo, serviceAccountName string,
    labels, annotations map[string]string, opts ...string) (*batchv1.JobSpec, error) {

    selector, containerName, err := getPGBackRestExecSelector(postgresCluster, repo)
    if err != nil {
        return nil, errors.WithStack(err)
    }

    repoIndex := regexRepoIndex.FindString(repo.Name)
    cmdOpts := []string{
        "--stanza=" + pgbackrest.DefaultStanzaName,
        "--repo=" + repoIndex,
    }
    cmdOpts = append(cmdOpts, opts...)

There it seems that for backups always the default stanza name is used and it is not possible to use a custom stanza.

Apart from that the tutorial worked out fine. So my S3 credentials are correct and the backup can be created (though with stanza "db" and restored).

EXPECTED

I expect that there is a configuration option to set the stanza for backups.

ACTUAL

The default stanza name is always used for backups. For restores I can define a stanza name.

CrunchyData / postgres-operator