30天web實踐1-docker

一上午的時間看文檔，發現docker功能還真多。。
草稿太難看了 就簡單說下創建過程

安裝

環境 Ubuntu Trusty 14.04 (LTS) (64-bit)

$ sudo apt-get update
$ sudo apt-get install docker.io
$ sudo ln -sf /usr/bin/docker.io /usr/local/bin/docker
$ sudo sed -i '$acomplete -F _docker docker' /etc/bash_completion.d/docker.io

測試

sudo docker run -i -t ubuntu /bin/bash

你發現進入另外一個系統，你就成功了

安裝node。js並製做鏡像

偷懶下

half@half-All-Series:~/src$ pwd
/home/half/src
half@half-All-Series:~/src$ ls
Dockerfile  package.json  server.js
half@half-All-Series:~/src$ cat package.json 
{
  "name": "mada0",
  "private": true,
  "version": "0.0.1",
  "description": "Node.js Hello world app on CentOS using docker",
  "author": "Daniel Gasienica <daniel@gasienica.ch>",
  "dependencies": {
    "express": "4.8.5"
  }
}
half@half-All-Series:~/src$ cat server.js 
var express = require('express');

// Constants
var PORT = 8080;

// App
var app = express();
app.get('/', function (req, res) {
  res.send('Hello world\n');
});

app.listen(PORT);
console.log('Running on http://localhost:' + PORT);
half@half-All-Series:~/src$ cat Dockerfile 
FROM node

ADD . /home/half/src
WORKDIR /home/half/src

# install your application's dependencies
RUN npm install

# replace this with your application's default port
EXPOSE 8888

# replace this with your main "server" script file
CMD [ "node", "server.js" ]

製做image

half@half-All-Series:~/src$ sudo docker build -t halfming/mada0 .

漫長的等待以後

half@half-All-Series:~/src$ sudo docker images
[sudo] password for half: 
REPOSITORY          TAG                 IMAGE ID                       CREATED             VIRTUAL SIZE
halfming/mada0      latest              ba4823af39af        35 seconds     ago      866.7 MB
node                0.11.13-onbuild     7ca564a2aaa2        2 weeks ago

查看

half@half-All-Series:~/src$ sudo docker ps
CONTAINER ID        IMAGE                   COMMAND             CREATED             STATUS              PORTS                               NAMES
2d78f5763f33        halfming/mada0:latest   node server.js      18 seconds ago      Up 17 seconds       0.0.0.0:49160->8080/tcp, 8888/tcp   cocky_morse

端口49160 127.0.0.1：49160 看下有沒有成功

收尾

給個tag

half@half-All-Series:~/src$ sudo docker tag ba4823af39af halfming/mada0:init
half@half-All-Series:~/src$ sudo docker images halfming/mada0
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
halfming/mada0      latest              ba4823af39af        26 minutes ago      866.7 MB
halfming/mada0      init                ba4823af39af        26 minutes ago      866.7 MB

push到服務器。。
half@half-All-Series:~/src$ sudo docker push halfming/mada0

比想象的麻煩多了 明天geoman harp