Feature flag to enable/disable canary + optional prometheus install (#937)

charts/fission-all/templates/deployment.yaml

@@ -103,6 +103,15 @@ metadata:
   name: fission-builder
   namespace: {{ .Values.builderNamespace }}
 
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: feature-config
+  namespace: {{ .Release.Namespace }}
+data:
+  "config.yaml": {{ include "config" . | b64enc }}
+
 ---
 apiVersion: extensions/v1beta1
 kind: Deployment
@@ -123,7 +132,7 @@ spec:
         image: "{{ .Values.repository }}/{{ .Values.image }}:{{ .Values.imageTag }}"
         imagePullPolicy: {{ .Values.pullPolicy }}
         command: ["/fission-bundle"]
-        args: ["--controllerPort", "8888", "--prometheusSvc", "http://{{ .Release.Name }}-prometheus-server.{{ .Release.Namespace }}"]
+        args: ["--controllerPort", "8888"]
         env:
           - name: FISSION_FUNCTION_NAMESPACE
             value: "{{ .Values.functionNamespace }}"
@@ -144,8 +153,15 @@ spec:
             port: 8888
           initialDelaySeconds: 35
           periodSeconds: 5
+        volumeMounts:
+        - name: config-volume
+          mountPath: /etc/config/config.yaml
+          subPath: config.yaml
       serviceAccount: fission-svc
-
+      volumes:
+      - name: config-volume
+        configMap:
+          name: feature-config
 ---
 apiVersion: extensions/v1beta1
 kind: Deployment