Add pg-db intances metadata fields (#491)

* Added metadata fields to helm chart

* Added README.md documentation for .instances[].metadata fields

* Added commented keys to pg-db helm-chart for instances[].metadata

* Fixed alignment on pg-db helm chart instance[].metadata fields

Author: elsayedmt

charts/pg-db/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: pg-db
 description: 'A Helm chart to deploy the PostgreSQL database with the Percona Operator for PostgreSQL'
 type: application
-version: 2.5.2
+version: 2.5.3
 appVersion: 2.5.0
 home: https://docs.percona.com/percona-operator-for-postgresql/2.0/
 maintainers:

charts/pg-db/README.md

@@ -90,6 +90,8 @@ The chart can be customized using the following configurable parameters:
 | |
 | `instances.name`                                                             | The name of the PostgreSQL instance                                                                                    | `instance1`                                                 |
 | `instances.replicas`                                                         | The number of Replicas to create for the PostgreSQL instance                                                           | `3`                                                         |
+| `instances.metadata.labels`                                                  | Labels applied to instance pods | `{}`                                                         |
+| `instances.metadata.annotations`                                             | Annotations applied to instance pods | `{}`                                                         |
 | `instances.affinity.podAntiAffinity`                                         | Pod anti-affinity, allows setting the standard Kubernetes affinity constraints of any complexity                       | `{}`                                                        |
 | `instances.resources.requests.memory`                                        | Kubernetes memory requests for a PostgreSQL instance                                                                   | `""`                                                        |
 | `instances.resources.requests.cpu`                                           | Kubernetes CPU requests for a PostgreSQL instance                                                                      | `""`                                                        |

charts/pg-db/templates/cluster.yaml

@@ -191,6 +191,9 @@ spec:
           memory: {{ $instance.resources.limits.memory }}
         {{- end }}
       {{- end }}
+      {{- if $instance.metadata }}
+      metadata: {{- $instance.metadata | toYaml | nindent 8 }}
+      {{- end }}
       {{- if $instance.containers }}
       containers:
         {{- if $instance.containers.replicaCertCopy }}

charts/pg-db/values.yaml

@@ -155,7 +155,9 @@ instances:
             matchLabels:
               postgres-operator.crunchydata.com/data: postgres
           topologyKey: kubernetes.io/hostname
-
+#  metadata:
+#    annotations: {}
+#    labels: {}
 #  resources:
 #    requests:
 #      cpu: 2.0