Dockerized Hello NodeJS example to test Kubernetes

Dockerfile

FROM node:6.9.2
EXPOSE 8080
COPY server.js .
CMD node server.js

hello_nodejs_deployment.yml

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: hello-nodejs
spec:
  replicas: 2
  template:
    metadata:
      labels:
        app: hello-nodejs
    spec:
      containers:
      - image: hello-nodejs:latest
        imagePullPolicy: IfNotPresent
        name: hello-nodejs
        ports:
        - containerPort: 8080      

hello_nodejs_service.yml

apiVersion: v1
kind: Service
metadata:
  name: hello-nodejs-service
spec:
  type: NodePort
  ports:
  - port: 8080
    targetPort: 8080
    protocol: TCP
  selector:
    app: hello-nodejs

run.sh

#!/usr/bin/env bash
eval $(minikube docker-env)
docker build -t hello-nodejs .
kubectl create -f hello_nodejs_deployment.yml
kubectl create -f hello_nodejs_service.yml
curl $(minikube service hello-nodejs-service --url)

server.js

var http = require('http');
var handleRequest = function(request, response){
    console.log("rx request for url:" + request.url);
    response.writeHead(200)
    response.end('Hello World: ' +  process.env.HOSTNAME);
};

var www = http.createServer(handleRequest);
www.listen(8080);