Instrumented everything but Python

src/checkoutservice/Dockerfile

@@ -9,11 +9,12 @@ RUN go get -d github.com/google/uuid \
     google.golang.org/grpc/status \
     go.opencensus.io/plugin/ocgrpc \
     go.opencensus.io/exporter/stackdriver \
-	go.opencensus.io/trace
+	go.opencensus.io/trace \
+    cloud.google.com/go/profiler
 COPY . .
 # get remaining dependencies
 RUN go get -d ./...
-RUN go build -o /checkoutservice .
+RUN go build -gcflags='-N -l' -o /checkoutservice .
 
 FROM alpine as release
 RUN apk add --no-cache ca-certificates

src/checkoutservice/main.go

@@ -18,6 +18,8 @@ import (
 
 	pb "checkoutservice/genproto"
 	money "checkoutservice/money"
+
+	"cloud.google.com/go/profiler"
 )
 
 const (
@@ -35,6 +37,15 @@ type checkoutService struct {
 }
 
 func main() {
+	if err := profiler.Start(profiler.Config{
+		Service:        "cartservice",
+		ServiceVersion: "1.0.0",
+		// ProjectID must be set if not running on GCP.
+		// ProjectID: "my-project",
+	}); err != nil {
+			// TODO: Handle error.
+	}
+	
 	port := listenPort
 	if os.Getenv("PORT") != "" {
 		port = os.Getenv("PORT")