將Docker image部屬到Minikube

const express = require('express');
const app = express();
app.get('/', (req, res) => {
  res.send('Vic’s Hello World!');
});
app.listen(5000, () => {
  console.log('Listening on port 5000!');
});

$ node index.js

$ sudo apt install nodejs

$ sudo apt install npm

$ npm install express

FROM node:8.9-alpine
RUN mkdir -p /hello_world
WORKDIR /hello_world
COPY index.js /hello_world
RUN npm install express
EXPOSE 5000
CMD [ "node", "index.js" ]

$ docker build -t vic/hello_world .

$ docker images |grep hello_world
=> 用關鍵字找
$ docker images
=> 列出全部

$ docker run --name hello_world -d -p 3000:5000 vic/hello_world
$ curl localhost:3000
$ docker stop hello_world

$ docker ps -a 

$ minikube start --driver=docker
=> 先啟動minikube
$ eval $(minikube docker-env)

$ kubectl run hello-world --image=vic/hello_world --restart=Never --image-pull-policy=Never

$ kubectl get pods

$ POD=$(kubectl get pods hello-world -o wide -o custom-columns=IP:status.podIP --no-headers)
=>取得pod ip
$ minikube ssh curl $POD:5000

$ kubectl delete pods hello-world