Update deploy with rollme and imagepullpolicy

Add random annotation and imagePullPolicy Always to ensure helm upgrade
always pulls a new image.

helm/templates/deploy.yaml

@@ -11,17 +11,19 @@ spec:
     metadata:
       labels:
         app: {{ .Release.Name }}
+      annotations:
+        rollme: {{ randAlphaNum 5 | quote }}
     spec:
       containers:
       - name: {{ .Release.Name }}
-        image: grafana/grafana:7.3.7
+        image: grafana/grafana:latest
         env:
           - name: GF_AUTH_ANONYMOUS_ENABLED
             value: "false"
         resources:
           requests:
-            memory: 256Mi
-            cpu: 100m
+            memory: 1Gi
+            cpu: 1m
           limits:
             memory: 1Gi
             cpu: '1'
@@ -33,4 +35,4 @@ spec:
       volumes:
         - name: data
           persistentVolumeClaim:
-            claimName: {{ .Release.Name }}
+            claimName: {{ .Release.Name }}