add ability to configure deployment strategy (#8073)

* add abillity to configure deployment strategy

Signed-off-by: Vardit Natanson <v.natanson@travelaudience.com>

* bump chart version

Signed-off-by: Vardit Natanson <v.natanson@travelaudience.com>

* update README

Signed-off-by: Vardit Natanson <v.natanson@travelaudience.com>

* remove Whitespace

Signed-off-by: Vardit Natanson <v.natanson@travelaudience.com>

* using pre-define values for namespace

Signed-off-by: Vardit Natanson <v.natanson@travelaudience.com>

stable/sonatype-nexus/Chart.yaml

@@ -1,5 +1,5 @@
 name: sonatype-nexus
-version: 1.9.0
+version: 1.10.0
 appVersion: 3.13.0-01
 description: Sonatype Nexus is an open source repository manager
 keywords:

stable/sonatype-nexus/README.md

@@ -63,6 +63,7 @@ The following table lists the configurable parameters of the Nexus chart and the
 | Parameter                                   | Description                         | Default                                 |
 | ------------------------------------------  | ----------------------------------  | ----------------------------------------|
 | `replicaCount`                              | Number of Nexus service replicas    | `1`                                     |
+| `deploymentStrategy`                        | Deployment Strategy     |  `rollingUpdate` |
 | `nexus.imageName`                           | Nexus image                         | `quay.io/travelaudience/docker-nexus`   |
 | `nexus.imageTag`                            | Version of Nexus                    | `3.9.0`                                 |
 | `nexus.imagePullPolicy`                     | Nexus image pull policy             | `IfNotPresent`                          |

stable/sonatype-nexus/templates/backup-pv.yaml

@@ -12,6 +12,7 @@ spec:
     - ReadWriteOnce
   claimRef:
     name: {{ template "nexus.fullname" . }}-backup
+    namespace: {{ .Release.Namespace }}
   gcePersistentDisk:
     pdName: {{ .Values.nexusBackup.persistence.pdName }}
     fsType: {{ .Values.nexusBackup.persistence.fsType }}

stable/sonatype-nexus/templates/deployment.yaml

@@ -6,6 +6,10 @@ metadata:
 {{ include "nexus.labels" . | indent 4 }}
 spec:
   replicas: {{ .Values.replicaCount }}
+  {{- if .Values.deploymentStrategy }}
+  strategy:
+{{ toYaml .Values.deploymentStrategy | indent 4 }}
+  {{- end }}
   selector:
     matchLabels:
       app: {{ template "nexus.name" . }}

stable/sonatype-nexus/templates/pv.yaml

@@ -11,6 +11,7 @@ spec:
   accessModes:
     - ReadWriteOnce
   claimRef:
+    namespace: {{ .Release.Namespace }}
     name: {{ template "nexus.fullname" . }}-data
   gcePersistentDisk:
     pdName: {{ .Values.persistence.pdName }}

stable/sonatype-nexus/values.yaml

@@ -1,4 +1,10 @@
 replicaCount: 1
+# By default deploymentStrategy is set to rollingUpdate with maxSurge of 25% and maxUnavailable of 25% . you can change type to `Recreate` or can uncomment `rollingUpdate` specification and adjust them to your usage.
+deploymentStrategy: {}
+  # rollingUpdate:
+  #   maxSurge: 25%
+  #   maxUnavailable: 25%
+  # type: RollingUpdate
 
 nexus:
   imageName: quay.io/travelaudience/docker-nexus