Enable serviceaccount creation by default

Implements #2 (closed)

webserver/templates/deployment.yaml

@@ -24,6 +24,9 @@ spec:
         {{- end }}
         sidecar.istio.io/inject: "true"
     spec:
+      {{- if .Values.serviceAccount.create }}
+      serviceAccountName: {{ include "webserver.serviceAccountName" . }}
+      {{- end }}
       {{- with .Values.imagePullSecrets }}
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}