Flux source-controller Function Proxy Var Replacement

* This commit fixes the bug of flux source-controller proxy var replacement
  to include proxy env settings to match HTTP_PROXY, HTTPS_PROXY and NO_PROXY

Change-Id: Ia6943529abf4e8afa7c5495316b8173e6c89cf9c
Relates-To: #550
Closes: #550

manifests/function/flux/source-controller/deployment_proxyvar_patch.yaml

@@ -0,0 +1,16 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: source-controller
+spec:
+  template:
+    spec:
+      containers:
+      - name: manager
+        env:
+          - name: http_proxy
+            value: REPLACEMENT_HTTP_PROXY
+          - name: https_proxy
+            value: REPLACEMENT_HTTPS_PROXY
+          - name: no_proxy
+            value: REPLACEMENT_NO_PROXY

manifests/function/flux/source-controller/kustomization.yaml

@@ -5,3 +5,4 @@ resources:
 - upstream/manager
 patchesStrategicMerge:
 - deployment_toleration_patch.yaml
+- deployment_proxyvar_patch.yaml