[stable/postgresql] Fix resources parameter and document it. (#9120)

Signed-off-by: Cédric de Saint Martin <cdesaintmartin@wiremind.fr>

stable/postgresql/Chart.yaml

@@ -1,5 +1,5 @@
 name: postgresql
-version: 2.3.4
+version: 2.4.0
 appVersion: 10.6.0
 description: Chart for PostgreSQL, an object-relational database management system (ORDBMS) with an emphasis on extensibility and on standards-compliance.
 keywords:

stable/postgresql/README.md

@@ -76,6 +76,7 @@ The following tables lists the configurable parameters of the PostgreSQL chart a
 | `persistence.accessMode`                      | PVC Access Mode for PostgreSQL volume              | `ReadWriteOnce`                                           |
 | `persistence.size`                            | PVC Storage Request for PostgreSQL volume          | `8Gi`                                                     |
 | `persistence.annotations`                     | Annotations for the PVC                            | `{}`                                                      |
+| `resources`                                   | CPU/Memory resource requests/limits                | `nil`                                                     |
 | `nodeSelector`                                | Node labels for pod assignment                     | `{}`                                                      |
 | `tolerations`                                 | Toleration labels for pod assignment               | `[]`                                                      |
 | `terminationGracePeriodSeconds`               | Seconds the pod needs to terminate gracefully      | `nil`                                                     |

stable/postgresql/templates/statefulset-slaves.yaml

@@ -71,7 +71,7 @@ spec:
         image: {{ template "postgresql.image" . }}
         imagePullPolicy: "{{ .Values.image.pullPolicy }}"
         resources:
-{{ toYaml .Values.Resources | indent 10 }}
+{{ toYaml .Values.resources | indent 10 }}
         env:
         {{- if .Values.image.debug}}
         - name: BASH_DEBUG

stable/postgresql/templates/statefulset.yaml

@@ -73,7 +73,7 @@ spec:
         image: {{ template "postgresql.image" . }}
         imagePullPolicy: "{{ .Values.image.pullPolicy }}"
         resources:
-{{ toYaml .Values.Resources | indent 10 }}
+{{ toYaml .Values.resources | indent 10 }}
         env:
         {{- if .Values.replication.enabled }}
         - name: POSTGRESQL_REPLICATION_MODE