Set fetcher image through poolmgr env (#280)

Add a helm value for the fetcher image. Pass the fetcher image path to poolmgr through an env var.

charts/fission-core/templates/deployment.yaml

@@ -232,6 +232,9 @@ spec:
         image: "{{ .Values.image }}:{{ .Values.imageTag }}"
         command: ["/fission-bundle"]
         args: ["--poolmgrPort", "8888", "--namespace", "{{ .Values.functionNamespace }}", "--fission-namespace", "{{ .Release.Namespace }}"]
+        env:
+        - name: FETCHER_IMAGE
+          value: "{{ .Values.fetcherImage }}:{{ .Values.fetcherImageTag }}"
       serviceAccount: fission-svc
 
 ---

charts/fission-core/values.yaml

@@ -6,12 +6,18 @@
 ## For minikube, set this to NodePort, elsewhere use LoadBalancer.
 serviceType: LoadBalancer
 
-## Fission image repostiroy
+## Fission image repository
 image: fission/fission-bundle
 
 ## Fission image version
 imageTag: alpha20170124
 
+## Fission fetcher repository
+fetcherImage: fission/fetcher
+
+## Fission fetcher image version
+fetcherImageTag: latest
+
 ## Port at which Fission controller service should be exposed
 controllerPort: 31313