title: Kubernetes nodeport not working
body: <p>I've created an YAML file with three images in one pod (they need to communicate with eachother over 127.0.0.1) It seems that it's all working. I've defined a nodeport in the yaml file.</p>
  
  <p>There is one deployment defined <code>applications</code> it contains three images:</p>
  
  <ul>
  <li>contacts-db (A MySQL database)</li>
  <li>front-end (An Angular website)</li>
  <li>net-core (An API)</li>
  </ul>
  
  <p>I've defined three services, one for every container. In there I've defined the type <code>NodePort</code> to access it.</p>
  
  <p>So I retrieved the services to get the port numbers:</p>
  
  <pre><code>NAME          CLUSTER-IP       EXTERNAL-IP   PORT(S)          AGE
  contacts-db   10.103.67.74     &lt;nodes&gt;       3306:30241/TCP   1d
  front-end     10.107.226.176   &lt;nodes&gt;       80:32195/TCP     1d
  net-core      10.108.146.87    &lt;nodes&gt;       5000:30245/TCP   1d
  </code></pre>
  
  <p>And I navigate in my browser to http://:32195 and it just keeps loading. It's not connecting. This is the complete Yaml file:</p>
  
  <pre><code>---
  apiVersion: v1
  kind: Namespace
  metadata:
    name: three-tier
  ---
  apiVersion: extensions/v1beta1
  kind: Deployment
  metadata:
    name: applications
    labels:
      name: applications
    namespace: three-tier
  spec:
    replicas: 1
    template:
      metadata:
        labels:
          name: applications
      spec:
        containers:
        - name: contacts-db
          image: mysql/mysql-server #TBD
          env:
            - name: MYSQL_ROOT_PASSWORD
              value: quintor
            - name: MYSQL_DATABASE
              value: quintor #TBD
          ports:
          - name: mysql
            containerPort: 3306
        - name: front-end
          image: xanvier/angularfrontend #TBD
          resources:
            requests:
              cpu: 100m
              memory: 100Mi
          ports:
          - containerPort: 80
        - name: net-core
          image: xanvier/contactsapi #TBD
          resources:
            requests:
              cpu: 100m
              memory: 100Mi
          ports:
          - containerPort: 5000
  ---
  apiVersion: v1
  kind: Service
  metadata:
    name: contacts-db
    labels:
      name: contacts-db
    namespace: three-tier
  spec:
    type: NodePort
    ports:
      # the port that this service should serve on
    - port: 3306
      targetPort: 3306
    selector:
      name: contacts-db
  ---
  apiVersion: v1
  kind: Service
  metadata:
    name: front-end
    labels:
      name: front-end
    namespace: three-tier
  spec:
    type: NodePort
    ports:
    - port: 80
      targetPort: 80 #nodePort: 30001
    selector:
      name: front-end
  ---
  apiVersion: v1
  kind: Service
  metadata:
    name: net-core
    labels:
      name: net-core
    namespace: three-tier
  spec:
    type: NodePort
    ports:
    - port: 5000
      targetPort: 5000 #nodePort: 30001
    selector:
      name: net-core
  ---
  </code></pre>