30天web实践1-docker

最新推荐文章于 2025-09-17 11:33:29 发布

原创最新推荐文章于 2025-09-17 11:33:29 发布 · 157 阅读

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本文介绍了如何在Ubuntu 14.04环境下使用Docker安装Node.js，并创建了一个简单的Node.js应用程序镜像。通过Dockerfile配置文件，实现了一键构建包含Express框架的应用程序容器。

一上午的时间看文档，发现docker功能还真多。。
草稿太难看了就简单说下建立过程

安装

环境 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

测试

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

你发现进入另一个系统，你就成功了

安装node。js并制作镜像

偷懒下

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" ]

制作image

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

漫长的等待之后

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 看下有没有成功

收尾

给个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到服务器。。
half@half-All-Series:~/src$ sudo docker push halfming/mada0

比想象的麻烦多了明天geoman harp