K8SPG-619: add restartPolicy and backoffLimit to .pgbackrest.jobs (#462)

* K8SPG-619: add `restartPolicy` and `backoffLimit` to `.pgbackrest.jobs`

https://perconadev.atlassian.net/browse/K8SPG-619

* update README

---------

Co-authored-by: Julio Pasinatto <julio.pasinatto@percona.com>

Author: pooknull

charts/pg-db/README.md

@@ -142,6 +142,8 @@ The chart can be customized using the following configurable parameters:
 | `backups.pgbackrest.jobs.tolerations.operator`                                     | The Kubernetes Pod tolerations operator for a backup job                                                                                                 | `Equal`                                                              |
 | `backups.pgbackrest.jobs.tolerations.value`                                        | The Kubernetes Pod tolerations value for a backup job                                                                                                    | `connection-poolers`                                                 |
 | `backups.pgbackrest.jobs.securityContext`                                          | The Kubernetes Pod security context for pgBackRest jobs                                                                                                  | `{}`                                                                 |
+| `backups.pgbackrest.jobs.livenessProbe`                                            | The Kubernetes Pod livenessProbe structure for a backup job                                                                                              | `{}`                                                                 |
+| `backups.pgbackrest.jobs.readinessProbe`                                           | The Kubernetes Pod readinessProbe structure for a backup job                                                                                             | `{}`                                                                 |
 | `backups.pgbackrest.global`                                                        | Settings, which are to be included in the global section of the pgBackRest configuration generated by the Operator                                       | `/pgbackrest/postgres-operator/hippo/repo1`                          |
 | `backups.pgbackrest.repoHost.topologySpreadConstraints.maxSkew`                    | The degree to which Pods may be unevenly distributed under the Kubernetes Pod Topology Spread Constraints                                                | `1`                                                                  |
 | `backups.pgbackrest.repoHost.topologySpreadConstraints.topologyKey`                | The key of node labels for the Kubernetes Pod Topology Spread Constraints                                                                                | `my-node-label`                                                      |

charts/pg-db/templates/cluster.yaml

@@ -377,6 +377,12 @@ spec:
       {{- end }}
       {{- if .Values.backups.pgbackrest.jobs }}
       jobs:
+        {{- if .Values.backups.pgbackrest.jobs.restartPolicy }}
+        restartPolicy: {{ .Values.backups.pgbackrest.jobs.restartPolicy }}
+        {{- end }}
+        {{- if .Values.backups.pgbackrest.jobs.backoffLimit }}
+        backoffLimit: {{ .Values.backups.pgbackrest.jobs.backoffLimit }}
+        {{- end }}
         {{- if .Values.backups.pgbackrest.jobs.priorityClassName }}
         priorityClassName: {{ .Values.backups.pgbackrest.jobs.priorityClassName }}
         {{- end }}

charts/pg-db/values.yaml

@@ -343,6 +343,8 @@ backups:
 #      - secret:
 #          name: cluster1-pgbackrest-secrets
 #    jobs:
+#      restartPolicy: OnFailure
+#      backoffLimit: 2
 #      priorityClassName: high-priority
 #      resources:
 #        limits: