added volumeClaimTemplates

templates/_statefulset.tpl

@@ -58,14 +58,11 @@ spec:
             {{- toYaml .Values.readinessProbe | nindent 12 }}
           resources:
             {{- toYaml .Values.resources | nindent 12 }}
-          {{- with .Values.volumeMounts }}
           volumeMounts:
-            {{- toYaml . | nindent 12 }}
+            {{- range $i, $values := .Values.volumeClaimTemplates }}
-          {{- end }}
+            - name: {{ $values.name }}
-      {{- with .Values.volumes }}
+              mountPath: {{ $values.mountPath }}
-      volumes:
+            {{- end }}
-        {{- toYaml . | nindent 8 }}
-      {{- end }}
       {{- with .Values.nodeSelector }}
       nodeSelector:
         {{- toYaml . | nindent 8 }}
@@ -78,4 +75,16 @@ spec:
       tolerations:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+  volumeClaimTemplates:
+  {{- range $i, $values := .Values.volumeClaimTemplates }}
+    - metadata:
+        name: {{ $values.name }}
+      spec:
+        accessModes:
+          -  {{ required (printf "accessMode is required for volumeClaimTemplate %v" $values.name) $values.accessMode  | quote }}
+        storageClassName: {{ required (printf "storageClassName is required for volumeClaimTemplate %v" $values.name) $values.storageClassName  | quote }}
+        resources:
+          requests:
+            storage: {{ required (printf "size is required for volumeClaimTemplate %v" $values.name) $values.size | quote }}
+  {{- end }}
 {{- end -}}

values.yaml

@@ -120,6 +120,17 @@ volumeMounts: []
 #   mountPath: "/etc/foo"
 #   readOnly: true
 
+# used for statefulset https://kubernetes.io/docs/concepts/workloads/controllers/statefulset
+volumeClaimTemplates: []
+#volumeClaimTemplates:
+#  - name: www
+#    mountPath: /var/www/html
+#    accessModes: "ReadWriteOnce"
+#    storageClassName: "my-storage-class"
+#    size: 1Gi
+
+
+
 serviceAccount:
   # Specifies whether a service account should be created
   create: true