Add recovery object store reference

This allows an external object store to be referenced which is used for
restore procedures.

Author: mikeshootzz

charts/vshnpostgresql/templates/_external_clusters.tpl

@@ -20,7 +20,7 @@ externalClusters:
     plugin:
       name: barman-cloud.cloudnative-pg.io
       parameters:
-        barmanObjectName: {{ include "cluster.fullname" $  }}-object-store
+        barmanObjectName: {{ .Values.recovery.objectStoreName | default (printf "%s-object-store" (include "cluster.fullname" .)) }}
         serverName: {{ .Values.recovery.clusterName |  default (include "cluster.fullname" .) }}
   {{- end }}
 {{- else if eq .Values.mode "replica" }}

charts/vshnpostgresql/templates/objectStore.yaml

@@ -9,7 +9,7 @@ spec:
   retentionPolicy: {{ . }}
   {{- end }}
   configuration:
-  {{- if and (eq .Values.mode "recovery") (eq .Values.recovery.method "object_store") -}}
+  {{- if and (eq .Values.mode "recovery") (eq .Values.recovery.method "object_store") (empty .Values.recovery.objectStoreName) -}}
   {{- $d := dict "chartFullname" (include "cluster.fullname" .) "scope" .Values.recovery "secretPrefix" "recovery" -}}
   {{- include "cluster.barmanObjectStoreConfig" $d | indent 2 }}
   {{- else }}

charts/vshnpostgresql/templates/recovery-s3-creds.yaml

@@ -1,4 +1,4 @@
-{{- if and (eq .Values.mode "recovery" ) (eq .Values.recovery.method "object_store") (eq .Values.recovery.provider "s3") (not .Values.recovery.s3.inheritFromIAMRole) .Values.recovery.secret.create }}
+{{- if and (eq .Values.mode "recovery" ) (eq .Values.recovery.method "object_store") (empty .Values.recovery.objectStoreName) (eq .Values.recovery.provider "s3") (not .Values.recovery.s3.inheritFromIAMRole) .Values.recovery.secret.create }}
 apiVersion: v1
 kind: Secret
 metadata:

charts/vshnpostgresql/values.yaml

@@ -49,6 +49,10 @@ recovery:
   ##
   # -- The original cluster name when used in backups. Also known as serverName.
   clusterName: ""
+  # -- Name of an externally managed ObjectStore to use for recovery.
+  # When set, the chart's own ObjectStore keeps backup credentials,
+  # and the external cluster references this ObjectStore instead.
+  objectStoreName: ""
   # -- Name of the database used by the application. Default: `app`.
   database: app
   # -- Name of the owner of the database in the instance to be used by applications. Defaults to the value of the `database` key.