Nginx + PHP web server on docker.

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Deploy a Nginx + PHP environment on Amazon EC2 using docker

簡介 Docker (What is Docker?)

Docker 是一個開源專案，支援多平台，從筆電到公、私有雲上能進行快速部署輕量、獨立的作業環境。
Docker is an open platform for distributed applications for developers and sysadmins.
Docker img

目的 (Content)

主要介紹如何用 Docker 在 AWS 上部署一個 nginx + php 的環境，會提到以下幾個部分：

  • 在 Amazon 的 EC2 上安裝 Docker
  • 註冊及登入 Docker Hub 帳號
  • 下載 docker image 來部署環境
  • 完成

Will focus on how to deploy an nginx + php environment using docker on amazon EC2:

  • install docker on Amazon EC2
  • Register and login to Docker Hub (Optional)
  • deploy using docker image
  • Done

    在 Amazon 的 EC2 上安裝 Docker (To install Docker on an Amazon Linux instance)

  1. Connect to your instance. see Connect to Your Linux Instance.
    連到你的EC2 instance.

  2. Update the installed packages and package cache on your instance.
    更新package

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    [ec2-user ~]$ sudo yum update -y

  3. Install Docker.
    安裝Docker

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    [ec2-user ~]$ sudo yum install -y docker

  4. Start the Docker service.
    啟用Docker

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    [ec2-user ~]$ sudo service docker start
    Starting cgconfig service:                           [  OK  ]
    Starting docker:                                     [  OK  ]

  5. Add the ec2-user to the docker group so you can execute Docker commands without using sudo.
    把ec2-user這個使用者加到docker的個group裡面，這樣可以不用每次用docker的時候都要打sudo

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    [ec2-user ~]$ sudo usermod -a -G docker ec2-user

  6. Log out and log back in again to pick up the new docker group permissions.
    登出再登入讓上一步的設定生效。

  7. Verify that the ec2-user can run Docker commands without sudo.
    用docker info來驗證Docker已安裝成功。 
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    [ec2-user ~]$ docker info
    Containers: 2
    Images: 24
    Storage Driver: devicemapper
    Pool Name: docker-202:1-263460-pool
    Pool Blocksize: 65.54 kB
    Data file: /var/lib/docker/devicemapper/devicemapper/data
    Metadata file: /var/lib/docker/devicemapper/devicemapper/metadata
    Data Space Used: 702.3 MB
    Data Space Total: 107.4 GB
    Metadata Space Used: 1.864 MB
    Metadata Space Total: 2.147 GB
    Library Version: 1.02.89-RHEL6 (2014-09-01)
    Execution Driver: native-0.2
    Kernel Version: 3.14.27-25.47.amzn1.x86_64
    Operating System: Amazon Linux AMI 2014.09

註冊及登入 Docker Hub 帳號 ( Register and login to Docker Hub )

  • Docker Hub 上提供了許多 images 可以使用，先去註冊 Docker Hub 帳號，網址：https://hub.docker.com/account/signup/
    There are many images on Docker Hub. First, go to register an account on Docker Hub：https://hub.docker.com/account/signup/

  • 接著可以用 docker login 來登入 Docker Hub :
    Use docker login to login Docker Hub : 

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    $ sudo docker login
    Username: [ENTER YOUR USERNAME]
    Password: [ENTER YOUR PASSWORD]
    Email: [ENTER YOUR EMAIL]
    Login Succeeded

下載 docker image 來部署環境 (pull docker image to deploy)

  1. 先把我建立的 image 抓從我的Docker Hub抓下來
    First pull the docker image I created from Docker Hub.

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    $ docker pull tomroy/nginx-php-fpm-vim:80port
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    80port: Pulling from tomroy/nginx-php-fpm-vim
    2eaf0096818b: Pull complete
    ...
    Digest:sha256:eed24a5da74cf411684c796d82900cfa682f89c97504b8372c7489ac124c6e46
    Status: Image is up to date for tomroy/nginx-php-fpm-vim:80port

  2. 利用剛剛抓下來的 image 建立一個 container 並執行裡面的 /sbin/my_init
    Run a container using the image we just pulled and run the /sbin/my_init script in that image.

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    $ docker run -d -p 8080:80 --name docker-host tomroy/nginx-php-fpm-vim: /sbin/my_init
    91646c7285a66ad4a2206a6a8b99d1f789661a110ae30faacdea53ea41fc4aa0

    /sbin/my_init : 

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    #!/usr/bin/env bash
    service php5-fpm start
    nginx

  3. 用docekr ps來檢查 container 是否已經成功啟動
    Use docker ps to check if the container is running.

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    # docker ps
    CONTAINER ID        IMAGE                             COMMAND             CREATED             STATUS              PORTS                                     NAMES
    91646c7285a6        tomroy/nginx-php-fpm-vim:80port   "/sbin/my_init"     About an hour ago   Up About an hour    443/tcp, 8080/tcp, 0.0.0.0:8080->80/tcp   docker-host

完成 (Done)

現在可以直接連到你host的8080 port, http://<docker_host>:8080就可以看到php default的網頁了。
You can then browse to http://:8080 to view the default install files.
php-welcome