Add Common Helm Chart "mariadb-galera"

A new common helm chart that will deploy a Galera cluster for MariaDB.
Please note that this chart is still work in progress and more features
will be added or improved.

Change-Id: Ia4487666798f83d2869c35bcfaacc5516068f194
Issue-ID: OOM-758
Signed-off-by: vitalied <vitalied@amdocs.com>
diff --git a/kubernetes/common/mariadb-galera/templates/pv.yaml b/kubernetes/common/mariadb-galera/templates/pv.yaml
new file mode 100644
index 0000000..184728f
--- /dev/null
+++ b/kubernetes/common/mariadb-galera/templates/pv.yaml
@@ -0,0 +1,37 @@
+{{/*
+# Copyright © 2017 Amdocs, Bell Canada
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+*/}}
+
+{{- if and .Values.persistence.enabled (not .Values.persistence.existingClaim) -}}
+kind: PersistentVolume
+apiVersion: v1
+metadata:
+  name: {{ include "common.fullname" . }}
+  namespace: {{ include "common.namespace" . }}
+  labels:
+    app: {{ include "common.name" . }}
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
+    release: "{{ .Release.Name }}"
+    heritage: "{{ .Release.Service }}"
+    name: {{ include "common.fullname" . }}
+spec:
+  capacity:
+    storage: {{ .Values.persistence.size}}
+  accessModes:
+    - {{ .Values.persistence.accessMode }}
+  persistentVolumeReclaimPolicy: {{ .Values.persistence.volumeReclaimPolicy }}
+  hostPath:
+    path: {{ .Values.global.persistence.mountPath | default .Values.persistence.mountPath }}/{{ .Release.Name }}/{{ .Values.persistence.mountSubPath }}
+{{- end -}}