home-stack-kustomize/kustomize/bases/grafana-agent/patches/grafana-agent-statefulset-patch.yaml

- op: remove
  path: /spec/volumeClaimTemplates
- op: add
  path: /spec/template/spec/volumes
  value:
    - name: grafana-agent
      secret:
        secretName: grafana-agent
    - name: agent-wal
      persistentVolumeClaim:
        claimName: grafana-agent-wal-pvc