Service: Refer to targetPort name.

It's not enough to use the same name for targetPort in pod and port in service. If targetPort field is empty in service, it defaults to the same value as port.

k8s/production/service.yaml

@@ -8,7 +8,8 @@ metadata:
 spec:
   type: LoadBalancer
   ports:
-    - port: 9094
-      name: http
+    - name: http
+      port: 9094
+      targetPort: http
   selector:
     app: spring-petclinic-plain

k8s/staging/service.yaml

@@ -8,7 +8,8 @@ metadata:
 spec:
   type: LoadBalancer
   ports:
-    - port: 9093
-      name: http
+    - name: http
+      port: 9093
+      targetPort: http
   selector:
     app: spring-petclinic-plain