Dockerfile 方式定制 lnmp 环境技术頭條網

2020-01-09 13:52:22 張德Talk

现在容器化技术越来越成熟和流行，比传统的虚拟化技术确实是有很大的优势，所以流行是必然的。今天来实践一把，使用Docker的dockerfile方式定制lnmp环境。

环境配置

<code>操作系统：CentOS Linux release 7.6.1810
Docker 版本：19.03.5
Nginx 版本：1.15.5
PHP 版本：7.2.26
MySQL 版本：8.0.18
Redis 版本：5.0.5  /<code>

创建目录结构

<code>docker目录：//docker相关配置
[root@zhangdeTalk data]# tree docker
docker
├── bin
│ └── docker-compose-linux.yml //dockerfile.yml
├── config
│ ├── mysql
│ │ └── mysqld.cnf //数据库配置文件
│ ├── nginx
│ │ ├── conf.d
│ │ │ └── default.conf //nginx主要配置文件
│ │ └── nginx.conf //nginx基础配置文件
│ ├── php
│ │ ├── php.ini //php基础配置文件
│ │ └── www.conf //php主要配置文件
│ └── redis
│ └── redis.conf //redis配置文件
├── dockerfile
│ ├── mysql-8.0.18│ 
│ └── Dockerfile //mysql的dockerfile
│ ├── nginx-1.15.5
│ │ └── Dockerfile //nginx的dockerfile
│ ├── php-7.2-fpm
│ │ └── Dockerfile //php的dockerfile
│ └── redis-5.0.5
│ └── Dockerfile //redis的dockerfile
├── README.en.md
└── README.md/<code>

<code>www目录：//站点目录 

[root@zhangdeTalk data]# tree www
www└
── zhangdetalk_blog_admin├── 1.html└── index.php/<code>

<code>logs目录：//日志目录
[root@zhangdeTalk data]# tree logs
logs
├── mysql
├── nginx
│   ├── access.log
│   └── error.log
├── php
└── redis/<code>

<code>mysql目录：//数据库数据目录/<code>

<code>redis目录：//数据库数据目录/<code>

Docker安装

先在CentOS安装Docker，可参考另外一篇文章：

构建lnmp镜像Dockerfile

PHP Dockerfile

<code>From php:7.2-fpm#维护者信息MAINTAINER zhangdeTalk [email protected]#时区ENV TZ Asia/ShanghaiRUN date -R#RUN docker-php-ext-install bcmath dom fileinfo filter ftp gd gmp hash iconv imap json mbstring mysqli odbc opcache pdo pdo_mysql pdo_odbc phar reflection session snmp soap sockets zip#RUN docker-php-ext-install mysqli opcache pdo_mysqlWORKDIR /workingRUN apt-get update --fix-missing && apt-get install -y libpng-dev libjpeg-dev libfreetype6-dev  \\    && docker-php-ext-configure gd --with-freetype-dir=/usr/include --with-jpeg-dir=/usr/include/jpeg \\    && docker-php-ext-install gd mysqli opcache pdo_mysql gd zipENV PHPREDIS_VERSION 4.0.1ENV PHPXDEBUG_VERSION 2.6.0ENV PHPSWOOLE_VERSION 4.2.13ENV PHPMONGODB_VERSION 1.5.3RUN pecl install redis-$PHPREDIS_VERSION \\    && pecl install xdebug-$PHPXDEBUG_VERSION \\    && pecl install swoole-$PHPSWOOLE_VERSION \\    && pecl install mongodb-$PHPMONGODB_VERSION \\    && docker-php-ext-enable redis xdebug swoole mongodb# install composer new# https://getcomposer.org/installer | https://install.phpcomposer.com/installer RUN php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');" \\     && php composer-setup.php \\     && php -r "unlink('composer-setup.php');" \\     && mv composer.phar /usr/local/bin/composer \\     && composer config -g repo.packagist composer https://packagist.laravel-china.orgRUN apt-get install -y git# clearRUN rm -rf /var/cache/apt/* \\    && rm -rf /var/lib/apt/lists/*RUN mkdir /var/lib/sessions \\    && chmod o=rwx -R /var/lib/sessions#容器启动时执行指令CMD ["php-fpm"]/<code>

Nginx Dockerfile

<code>From nginx:1.15.5#维护者信息MAINTAINER zhangdeTalk [email protected]#时区ENV TZ Asia/ShanghaiRUN date -R#容器启动时执行指令CMD ["nginx", "-g", "daemon off;"]/<code>

Mysql Dockerfile

<code>From mysql:8.0.18#维护者信息MAINTAINER zhangdeTalk [email protected]#时区ENV TZ Asia/ShanghaiRUN date -R#容器启动时执行指令CMD ["mysqld"]/<code>

Redis Dockerfile

<code>From redis:5.0.5#维护者信息MAINTAINER zhangdeTalk [email protected]#时区ENV TZ Asia/ShanghaiRUN date -R#容器启动时执行指令CMD ["redis-server"]/<code>

dockerfile.yml配置

<code>version: '3.3'services:  nginx:    build: ../dockerfile/nginx-1.15.5    ports:      - "80:80" #nginx    restart: always    tty: true    container_name: nginx    volumes:      - /data/www:/var/www/html      - /data/logs/nginx:/var/log/nginx      - /data/docker/config/nginx/conf.d:/etc/nginx/conf.d      - /data/docker/config/nginx/nginx.conf:/etc/nginx/nginx.conf      - /etc/letsencrypt:/etc/letsencrypt    networks:     - lnmp-networks  php7:    build: ../dockerfile/php-7.2-fpm    tty: true    restart: always    container_name: php7    volumes:      - /data/www:/var/www/html      - /data/logs/php:/var/log/php      - /data/docker/config/php/php.ini:/usr/local/etc/php/php.ini      - /data/docker/config/php/www.conf:/usr/local/etc/php-fpm.d/www.conf    depends_on:      - nginx    networks:     - lnmp-networks  redis:    build: ../dockerfile/redis-5.0.5    container_name: redis    tty: true    restart: always    volumes:      - /data/docker/config/redis/redis.conf:/etc/redis/redis.conf      - /data/redis:/var/lib/redis      - /data/logs/redis:/var/log/redis    networks:     - lnmp-networks  mysql:    build: ../dockerfile/mysql-8.0.18    container_name: mysql    tty: true    restart: always    ports:      - "3306:3306" #mysql    volumes:      - /data/mysql:/var/lib/mysql      - /data/docker/config/mysql/mysqld.cnf:/etc/mysql/mysql.conf.d/mysqld.cnf      - /data/logs/mysql:/var/log/mysql      - /data/mysqlback:/data/mysqlback    environment:      MYSQL_ROOT_PASSWORD: root    networks:      - lnmp-networksnetworks: lnmp-networks:/<code>

Nginx配置文件

<code>vim /data/docker/config/nginx/conf.d/default.confserver {         listen 80;         listen [::]:80;         # Add index.php to the list if you are using PHP         index index.html index.htm index.nginx-debian.html index.php;         charset utf-8;         server_name zhangdetalk.com www.zhangdetalk.com;         location ~ \\.md$ {             default_type 'text/plain';         }         root /var/www/html/zhangdetalk_blog_admin;//项目目录         location / {                 #try_files $uri $uri/ =404;                 index    index.php index.htm index.html;                 if (!-e $request_filename) {                         rewrite  ^(.*)$  /index.php?s=$1  last;                         break;                 }         }         location ~ \\.php$ {                 include fastcgi_params;                 fastcgi_index index.php;                 fastcgi_pass php7:9000;//容器:端口号                 fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;         } }/<code>

docker-compose安装

<code>1. curl -L https://get.daocloud.io/docker/compose/releases/download/1.22.0/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose
2. chmod +x /usr/local/bin/docker-compose //设置可执行权限/<code>

创建并启动容器

<code>docker-compose -f docker-compose-linux.yml up -d --force-recreate --remove-orphans/<code>

容器查看

<code>docker ps/<code>

测试

<code>vim /data/www/zhangdetalk_blog_admin/index.php
echo "Hello World";
$conn = mysqli_connect('数据库容器名字','dbuser','dbpw');
if($conn){
  echo '数据库连接成功！';
}else{
  echo '数据库连接失败！';
}
phpinfo();
?>/<code>

<code>通过访问站点：http://www.zhangdetalk.com/
可以看到显示数据库连接成功，并打印出PHP的相关信息
到此步，我们的lnmp环境搭建大功告成！/<code>

github源码

<code>相关的源码下载地址：https://github.com/zhangdejian/docker_lnmp.git/<code>

遇到的问题

<code>1、PHP代码连接数据库，host不能写成127.0.0.1或localhost，需要填写数据库容器名字/<code>

<code>2、mysql8连接，连接失败，因为加密方式有变化
解决方式：主机登录mysql，修改成旧的加密方式（mysql_native_password），并重置密码 
* mysql -uroot -p;
* use mysql;
* select host,user,plugin from user;
* alter user 'root'@'%' identified with mysql_native_password by '123456';/<code>

可参考这篇文章：

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