[stable/grafana] Automatically roll Deployment when ConfigMap is changed (#1757)

Ensure Grafana is redeployed whenever the server config og dashboards config has been modified by hashing the content of the config files as deployment annotations.

Signed-off-by: Hans Kristian Flaatten <hans@starefossen.com>

stable/grafana/Chart.yaml

@@ -1,5 +1,5 @@
 name: grafana
-version: 0.4.3
+version: 0.4.4
 description: The leading tool for querying and visualizing time series and metrics.
 home: https://grafana.net
 icon: https://raw.githubusercontent.com/grafana/grafana/master/public/img/logo_transparent_400x.png

stable/grafana/templates/deployment.yaml

@@ -13,6 +13,8 @@ spec:
   template:
     metadata:
       annotations:
+        checksum/config: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
+        checksum/dashboards-config: {{ include (print $.Template.BasePath "/dashboards-configmap.yaml") . | sha256sum }}
       {{- range $key, $value := .Values.server.annotations }}
         {{ $key }}: {{ $value }}
       {{- end }}