Fix svcs selecting wrong deployment

Author: PhilippMatthes

helm/cortex/templates/deployment.yaml

@@ -5,6 +5,7 @@ kind: Deployment
 metadata:
   name: {{ $.Chart.Name }}-{{ .name }}
   labels:
+    app: {{ $.Chart.Name }}-{{ .name }}
     {{- include "cortex.labels" $ | nindent 4 }}
 spec:
   replicas: {{ .replicas }}
@@ -18,6 +19,7 @@ spec:
         {{- toYaml . | nindent 8 }}
       {{- end }}
       labels:
+        app: {{ $.Chart.Name }}-{{ .name }}
         {{- include "cortex.labels" $ | nindent 8 }}
         {{- with $.Values.podLabels }}
         {{- toYaml . | nindent 8 }}

helm/cortex/templates/service.yaml

@@ -23,5 +23,5 @@ spec:
       protocol: TCP
       name: metrics
   selector:
-    {{- include "cortex.selectorLabels" $ | nindent 4 }}
+    app: {{ $.Chart.Name }}-{{ .name }}
 {{- end }}