Resolve "Grafana settings lost when host ethernet interface goes down and back up"

Closes #140 (closed)

manifests/webuiservice.yaml

@@ -12,6 +12,17 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: grafana-pvc
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi
+---
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -99,6 +110,13 @@ spec:
             limits:
               cpu: 500m
               memory: 1024Mi
+          volumeMounts:
+            - mountPath: /var/lib/grafana
+              name: grafana-pv
+      volumes:
+        - name: grafana-pv
+          persistentVolumeClaim:
+            claimName: grafana-pvc
 ---
 apiVersion: v1
 kind: Service