go services: fix bug that starts profiling 3 times

Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>

src/checkoutservice/main.go

@@ -95,6 +95,9 @@ func initProfiling(service, version string) {
 			// ProjectID: "my-project",
 		}); err != nil {
 			log.Printf("warn: failed to start profiler: %+v", err)
+		} else {
+			log.Print("started stackdriver profiler")
+			return
 		}
 		d := time.Second * 10 * time.Duration(i)
 		log.Printf("sleeping %v to retry initializing stackdriver profiler", d)

src/frontend/main.go

@@ -145,6 +145,9 @@ func initProfiling(log logrus.FieldLogger, service, version string) {
 			// ProjectID: "my-project",
 		}); err != nil {
 			log.Warnf("warn: failed to start profiler: %+v", err)
+		} else {
+			log.Info("started stackdriver profiler")
+			return
 		}
 		d := time.Second * 10 * time.Duration(i)
 		log.Debugf("sleeping %v to retry initializing stackdriver profiler", d)

src/productcatalogservice/server.go

@@ -90,12 +90,13 @@ func initProfiling(service, version string) {
 			// ProjectID: "my-project",
 		}); err != nil {
 			log.Printf("warn: failed to start profiler: %+v", err)
-			d := time.Second * 10 * time.Duration(i)
-			log.Printf("sleeping %v to retry initializing stackdriver profiler", d)
-			time.Sleep(d)
-			continue
+		} else {
+			log.Print("started stackdriver profiler")
+			return
 		}
-		return
+		d := time.Second * 10 * time.Duration(i)
+		log.Debugf("sleeping %v to retry initializing stackdriver profiler", d)
+		time.Sleep(d)
 	}
 	log.Printf("warning: could not initialize stackdriver profiler after retrying, giving up")
 }

src/shippingservice/main.go

@@ -120,6 +120,9 @@ func initProfiling(service, version string) {
 			// ProjectID: "my-project",
 		}); err != nil {
 			log.Printf("warn: failed to start profiler: %+v", err)
+		} else {
+			log.Print("started stackdriver profiler")
+			return
 		}
 		d := time.Second * 10 * time.Duration(i)
 		log.Printf("sleeping %v to retry initializing stackdriver profiler", d)