Enable option to specify a different strategy than recreate (#22387)

Signed-off-by: Igor Valente Blackman <igor.blackman@gmail.com>

stable/nextcloud/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: nextcloud
-version: 1.10.0
+version: 1.10.1
 appVersion: 17.0.0
 description: A file sharing server that puts the control and security of your own data back into your hands.
 keywords:

stable/nextcloud/README.md

@@ -81,6 +81,7 @@ The following table lists the configurable parameters of the nextcloud chart and
 | `nextcloud.defaultConfigs.\.apps\.config\.php`               | Default configuration for apps                          | `true`                                      |
 | `nextcloud.defaultConfigs.\.autoconfig\.php`                 | Default auto-configuration for databases                | `true`                                      |
 | `nextcloud.defaultConfigs.\.smtp\.config\.php`               | Default configuration for smtp                          | `true`                                      |
+| `nextcloud.strategy`                                         | specifies the strategy used to replace old Pods by new ones | `type: Recreate`                                      |
 | `nextcloud.extraEnv`                                         | specify additional environment variables                | `{}`                                        |
 | `nextcloud.extraVolumes`                                     | specify additional volumes for the NextCloud pod        | `{}`                                        |
 | `nextcloud.extraVolumeMounts`                                | specify additional volume mounts for the NextCloud pod  | `{}`                                        |

stable/nextcloud/templates/deployment.yaml

@@ -14,7 +14,7 @@ metadata:
 spec:
   replicas: {{ .Values.replicaCount }}
   strategy:
-    type: Recreate
+{{ toYaml .Values.nextcloud.strategy | indent 4 }}
   selector:
     matchLabels:
       app.kubernetes.io/name: {{ include "nextcloud.name" . }}

stable/nextcloud/values.yaml

@@ -125,6 +125,16 @@ nextcloud:
   #        )
   #      );
 
+  ## Strategy used to replace old pods
+  ## IMPORTANT: use with care, it is suggested to leave as that for upgrade purposes
+  ## ref: https://kubernetes.io/docs/concepts/workloads/controllers/deployment/#strategy
+  strategy:
+    type: Recreate
+    # type: RollingUpdate
+    # rollingUpdate:
+    #   maxSurge: 1
+    #   maxUnavailable: 0
+
   ##
   ## Extra environment variables
   extraEnv: