Istio integration (#421)

This the very first step for fission to integrate with Istio, which is an open platform to connect, manage, and secure microservices. With Istio, users are able to monitor functions usage and trace requests latency through dashboards. For more information, please visit http://fission.io/docs/

buildermgr/buildermgr.go

@@ -24,6 +24,7 @@ import (
 
 // Start the buildermgr service.
 func Start(storageSvcUrl string, envBuilderNamespace string) error {
+
 	fissionClient, kubernetesClient, _, err := crd.MakeFissionClient()
 	if err != nil {
 		log.Printf("Failed to get kubernetes client: %v", err)
@@ -33,7 +34,8 @@ func Start(storageSvcUrl string, envBuilderNamespace string) error {
 	envWatcher := makeEnvironmentWatcher(fissionClient, kubernetesClient, envBuilderNamespace)
 	go envWatcher.watchEnvironments()
 
-	pkgWatcher := makePackageWatcher(fissionClient, kubernetesClient.CoreV1().RESTClient(), envBuilderNamespace, storageSvcUrl)
+	pkgWatcher := makePackageWatcher(fissionClient,
+		kubernetesClient.CoreV1().RESTClient(), envBuilderNamespace, storageSvcUrl)
 	go pkgWatcher.watchPackages()
 
 	select {}