docker-compose Learning: Specifies a simple build mirror image instruction by LNMP

docker-compose understand:

Each service must specify mirror or build instructions (Dockerfile need) or the like through the image generation instruction to automatically build the mirror.

The first directly specify the mirror to build a simple LNMP, as an entry docker-compose learning

Actual operations are necessarily Dockerfile need to configure in order to meet their individual needs

surroundings:

visualbox ubuntu 1804 local mysql deleted

1, the installation docker-compose

Official website
https://docs.docker.com/compose/
a nice portal
https://docker_practice.gitee.io/compose/compose_file.html

1. Pre-set about Ali cloud Docker accelerate
   again copy it, save always forget, each time to find
   the ** below https://2xxxxxxx.mirror.aliyuncs.com is the exclusive address of my application accelerator, remember into their own the address of

    1. 安装／升级Docker客户端
    推荐安装1.10.0以上版本的Docker客户端，参考文档 docker-ce
    
    2. 配置镜像加速器
    针对Docker客户端版本大于 1.10.0 的用户
    
    您可以通过修改daemon配置文件/etc/docker/daemon.json来使用加速器
    sudo mkdir -p /etc/docker
    sudo tee /etc/docker/daemon.json <<-'EOF'
    {
      "registry-mirrors": ["https://2xxxxxxx.mirror.aliyuncs.com"]
    }
    EOF
    sudo systemctl daemon-reload
    sudo systemctl restart docker
   

   Screenshot below:
   

2. Docker-compose the installation
   according to the official website operation

    sudo curl -L "https://github.com/docker/compose/releases/download/1.24.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
   

   Too slow! So, they went a little domestic mirroring
   domestic mirrored reference article
   https://blog.csdn.net/huiyanghu/article/details/82253886

According to the above referenced article copied over

	curl -L https://get.daocloud.io/docker/compose/releases/download/1.24.0/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose

Sure enough, seconds up! Next, set to run

chmod +x /usr/local/bin/docker-compose

just to confirm:

$docker-compose --version
	docker-compose version 1.24.0, build 0aa59064

2, the first attempt to establish a project: LNMP

1. Establishment of a separate study compose a directory
   mkdir cd compose compose &&
   mkdir lnmp1 && cd lnmp1
   establish a mysql data storage directory, a nginx / php storage directory
   mkdir mysql
   mkdir nginx && cd nginx
   in accordance with nginx websites habits, establish a conf.d directory and a www directory
   at www / html pre-written a index.php
   *** superfluous preceded by a few words just to confirm it easy!

    <h3> wellcome WZH!
    <h4> this is a docker demo
    <h5> 20190416
    <p>==================</p>
    
    <?php
    phpinfo();
    ?>
   

   The final directory structure is as follows

   $ tree lnmp -d
   lnmp
   ├── mysql
   │ └── data
   │ ├── mysql
   │ ├── performance_schema
   │ └── sys
   └── nginx
   ├── conf.d
   └── www
   └── html

3, start writing templates

1. Reference:
   https://www.jianshu.com/p/7fff488604c1
   https://www.cnblogs.com/blogscc/p/9473123.html

2. In advance to confirm port occupancy

   ss -tlnp | grep 3306
   LIST 0 80 127.0.0.1:3306 0.0.0.0:*

ss -tlnp |grep 80
LISTEN   0         80                127.0.0.1:3306             0.0.0.0:*       
LISTEN   0         128                       *:80                     *:*  

** My 3306 and 80 ports are already occupied, so the following script host port 3307 and replaced by 81

3. They were tested nginx, php, mysql mirror and the container run

4. Write-compose.yml template file Docker
   $ Docker CAT-compose.yml

    version: "3"
    services:
      web_server:
        image: nginx:latest
        container_name: nginx
        links:
            - php:php
        ports:
            - "81:80"
            - "443:443"
        volumes:
            - ./nginx/www/html:/var/www/html
            - ./nginx/conf.d:/etc/nginx/conf.d  
    
      db_server:
        image: mysql:5.7.21
        container_name: mysql
        environment:
            MYSQL_ROOT_PASSWORD: 123456
        ports:
            - "3307:3306"
        volumes:
            - ./mysql/data:/var/lib/mysql
    
      php:
        image: php:5.6-fpm
        container_name: php
        links:
            - db_server:mysql
        ports:
            - "9000:9000"
        volumes:
            - ./nginx/www/html:/var/www/html
            - ./nginx/conf.d:/etc/nginx/conf.d
   

   5. Run the test
      in the current directory
      $ Docker Compose-up -d
      MySQL DATE IS up-to-
      PHP up-to-DATE IS
      nginx up-to-DATE IS

      ** If you modify the docker-compose.yml, stop before starting again
      $ Docker Compose-Down
      Stopping nginx ... DONE
      Stopping PHP ... DONE
      Stopping MySQL ... DONE
      Removing nginx ... DONE
      Removing PHP ... DONE
      Removing MySQL ... DONE

      Confirm whether the container start
      $ docker ps -s

       CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                                      NAMES               SIZE
       6bb7eb2c7665        nginx:latest        "nginx -g 'daemon of…"   About an hour ago   Up About an hour    0.0.0.0:443->443/tcp, 0.0.0.0:81->80/tcp   nginx               2B (virtual 109MB)
       47f3ed37ac21        php:5.6-fpm         "docker-php-entrypoi…"   About an hour ago   Up About an hour    0.0.0.0:9000->9000/tcp                     php                 0B (virtual 344MB)
       41d22b0b79f0        mysql:5.7.21        "docker-entrypoint.s…"   About an hour ago   Up About an hour    0.0.0.0:3307->3306/tcp                     mysql   
      

      curl 127.0.0.1:81

Browser opens http://192.168.1.193:81/

4, error handling

1. 404 Not Found curl 127.0.0.1:81/index.php always
   because of default.conf conf.d copied over the actual environment, php parsing
   fastcgi_pass 127.0.0.1:9000;
   now need to be replaced php container name
   fastcgi_pass php: 9000 ;

2. When docker ps -s View, nginx does not start container always
   replace php container name is not written correctly

The following is a copy default.conf came after the modification from the reference article

server {
    listen       80;
    server_name  localhost;

    location / {
        root   /var/www/html;
        index  index.html index.htm index.php;
    }

    #error_page  404              /404.html;

    # redirect server error pages to the static page /50x.html
    #
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /var/www/html;
    }
    location ~ \.php$ {
        root           /var/www/html;
        # fastcgi_pass   127.0.0.1:9000;
        # 必须修改为compose模版文件中php容器名字
        fastcgi_pass   php:9000
        fastcgi_index  index.php;
        fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name; # 修改为$document_root
        include        fastcgi_params;
    }
}