fix shipping service ports

kubernetes-manifests/shippingservice.yaml

@@ -30,6 +30,9 @@ spec:
         image: shippingservice
         ports:
         - containerPort: 50051
+        env:
+        - name: PORT
+          value: "50051"
         readinessProbe:
           periodSeconds: 5
           exec:

src/shippingservice/main.go

@@ -60,7 +60,7 @@ func main() {
 	go initProfiling("shippingservice", "1.0.0")
 
 	port := defaultPort
-	if value, ok := os.LookupEnv("APP_PORT"); ok {
+	if value, ok := os.LookupEnv("PORT"); ok {
 		port = value
 	}
 	port = fmt.Sprintf(":%s", port)