Add informers and internal go routines in manager (#2870)

* used manager's Add function in more places
* exit when ctx.Done is received in archivePruner go routines
* fix manager tests
* fix data race
* added more gpm function in manager and removed manager from a util function
* closed unused channel and stopped ticker after context is done
* added log statements
* used context.Done inside function instead of stopper channel

pkg/kubewatcher/main.go

@@ -24,9 +24,10 @@ import (
 
 	"github.com/fission/fission/pkg/crd"
 	"github.com/fission/fission/pkg/publisher"
+	"github.com/fission/fission/pkg/utils/manager"
 )
 
-func Start(ctx context.Context, clientGen crd.ClientGeneratorInterface, logger *zap.Logger, routerUrl string) error {
+func Start(ctx context.Context, clientGen crd.ClientGeneratorInterface, logger *zap.Logger, mgr manager.Interface, routerUrl string) error {
 	fissionClient, err := clientGen.GetFissionClient()
 	if err != nil {
 		return errors.Wrap(err, "failed to get fission client")
@@ -47,7 +48,7 @@ func Start(ctx context.Context, clientGen crd.ClientGeneratorInterface, logger *
 	if err != nil {
 		return errors.Wrap(err, "error making watch sync")
 	}
-	ws.Run(ctx)
+	ws.Run(ctx, mgr)
 
 	return nil
 }

pkg/kubewatcher/watchSync.go

@@ -26,6 +26,7 @@ import (
 	fv1 "github.com/fission/fission/pkg/apis/core/v1"
 	"github.com/fission/fission/pkg/generated/clientset/versioned"
 	"github.com/fission/fission/pkg/utils"
+	"github.com/fission/fission/pkg/utils/manager"
 )
 
 type (
@@ -51,10 +52,8 @@ func MakeWatchSync(ctx context.Context, logger *zap.Logger, client versioned.Int
 	return ws, nil
 }
 
-func (ws *WatchSync) Run(ctx context.Context) {
-	for _, informer := range ws.kubeWatcherInformer {
-		go informer.Run(ctx.Done())
-	}
+func (ws *WatchSync) Run(ctx context.Context, mgr manager.Interface) {
+	mgr.AddInformers(ctx, ws.kubeWatcherInformer)
 }
 
 func (ws *WatchSync) KubeWatcherEventHandlers(ctx context.Context) error {