shippingservice: minify dockerfile, unify genproto

also fixed a bug causing non-letter chars in tracking ID.

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

src/shippingservice/main.go

@@ -10,10 +10,9 @@ import (
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/reflection"
 
-	pb "microservices-demo/pb"
+	pb "./genproto"
 )
 
-
 const (
 	default_port = "50051"
 )
@@ -36,7 +35,7 @@ func (s *server) GetQuote(ctx context.Context, in *pb.GetQuoteRequest) (*pb.GetQ
 	// 3. Generate a response.
 	return &pb.GetQuoteResponse{
 		CostUsd: &pb.MoneyAmount{
-			Decimal: quote.Dollars,
+			Decimal:    quote.Dollars,
 			Fractional: quote.Cents,
 		},
 	}, nil
@@ -76,4 +75,4 @@ func main() {
 	if err := s.Serve(lis); err != nil {
 		log.Fatalf("failed to serve: %v", err)
 	}
-}
+}