第一步：构建php镜像

#选择镜像
FROM php:7.4.36-fpm-stretch
 
#因为官方镜像是用的debain stretch 所以第一步先替换源 如果是Jessie 要替换对应的源
RUN echo "deb http://mirrors.aliyun.com/debian stretch main contrib non-free" > /etc/apt/sources.list && \
    echo "deb-src http://mirrors.aliyun.com/debian stretch main contrib non-free" >> /etc/apt/sources.list  && \
    echo "deb http://mirrors.aliyun.com/debian stretch-updates main contrib non-free" >> /etc/apt/sources.list && \
    echo "deb-src http://mirrors.aliyun.com/debian stretch-updates main contrib non-free" >> /etc/apt/sources.list && \
    echo "deb http://mirrors.aliyun.com/debian-security stretch/updates main contrib non-free" >> /etc/apt/sources.list && \
    echo "deb-src http://mirrors.aliyun.com/debian-security stretch/updates main contrib non-free" >> /etc/apt/sources.lis
 
#安装后面所使用的工具 composer会用到git php gd扩展会用到libpng-dev
RUN apt-get update && apt-get install -y \
    git\
    libpng-dev
 
#添加扩展的其中一种方式 就是把命令组合在了一起
RUN curl -fsSL 'https://pecl.php.net//get/redis-4.0.2.tgz' -o redis-4.0.2.tar.gz \
    && tar -xvf redis-4.0.2.tar.gz \
    && rm redis-4.0.2.tar.gz \
    && ( \
        cd redis-4.0.2 \
        && phpize \
        && ./configure  \
        && make \
        && make install \
    ) \
    && rm -r redis-4.0.2 \ #删除是为了节约空间
    && docker-php-ext-enable redis  
#安装php编译时官方没有安装的扩展,哪个版本的php镜像,就下载哪个版本的源码
RUN curl -fsSL 'http://ba1.php.net/get/php-7.4.36.tar.gz/from/this/mirror' -o php-7.4.36.tar.gz \
    && tar -xvf php-7.4.36.tar.gz \
    && rm php-7.4.36.tar.gz \
    && ( \
        cd php-7.4.36/ext/mysql \
        && phpize \
        && ./configure  \
        && make \
        && make install \
    ) \
    && ( \
        cd php-7.4.36/ext/pdo_mysql \
        && phpize \
        && ./configure  \
        && make \
        && make install \
    ) \
    && ( \
        cd php-7.4.36/ext/mysqli \
        && phpize \
        && ./configure  \
        && make \
        && make install \
    ) \
    && ( \
           cd php-7.4.36/ext/bcmath \
           && phpize \
           && ./configure  \
           && make \
           && make install \
    ) \
    && ( \
           cd php-7.4.36/ext/gd \
           && phpize \
           && ./configure  \
           && make \
           && make install \
    ) \
    && rm -r php-7.4.36 \
    && docker-php-ext-enable mysql pdo_mysql mysqli bcmath gd
#安装composer 我个人觉得这样方便使用
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 self-update && \
    composer config -g repo.packagist composer https://packagist.phpcomposer.com
#命令
CMD ["php-fpm"]

生成镜像 docker build -t php-fpm-7.4 . 其中php-fpm-7.4是生成镜像的名称 .代表当前路径存放Dockerfile文件

当然你也可以直接拉取php镜像，然后exec到镜像安装扩展之类的

docker-compose

version: '2'
services:
    nginx:
        container_name: nginx
        image: nginx:1.13.12 #选择nginx版本
        ports:
            - "80:80"
        volumes:
            - ./server/nginx/nginx.conf:/etc/nginx/nginx.conf #使用本地配置文件
            - ./server/nginx/conf:/etc/nginx/conf #这里我放的是站点配置文件
            - ./server/nginx/logs:/logs #日志
            - ./manager-h5:/usr/src/manager-h5 #使用本地项目 这里要和php容器使用的项目一致
        stdin_open: true
        tty: true
        links:
          - php-fpm 
    php-fpm:
        container_name: php-fpm
        image: php-fmp-5.6
#        build: #如果之前没有生产镜像,可以直接用这个
#            context: server/php/php-fpm/5.6/
        ports:
            - "9000:9000"
        volumes:
             #- /etc/localtime:/etc/localtime:ro #修正时间 centos
             #- /etc/timezone:/etc/timezone:ro #修正时区 centos
             - ./manager-h5:/usr/src/manager-h5 #本地项目
             - ./server/php/php-fpm/5.6/php-fpm.d:/usr/local/etc/php-fpm.d #配置文件
             - ./server/php/php-fpm/5.6/fpm-php.www.log:/var/log/fpm-php.www.log # 日志
        stdin_open: true
        tty: true
        links:
            - redis
            - mysql
        depends_on:
            - redis
            - mysql
 
    redis:
         container_name: redis
         image: redis:4.0.2
         ports:
            - "6379:6379"
         volumes:
            - ./server/redis/redis.conf:/etc/redis/redis.conf
            - ./server/redis/data:/data
            - ./server/redis/logs:/logs
            - ./server/redis/redis_cache:/redis_cache
    mysql:
        container_name: mysql
        image: mysql:5.7.22
        ports:
            - "3306:3306"
        volumes:
            - ./server/mysql/data:/var/lib/mysql
            - ./server/mysql/logs:/logs
            - ./server/mysql/my.cnf:/etc/my.cnf
        environment:
            MYSQL_USER: root #mysql用户名
            MYSQL_PASSWORD: 123456 #对应的密码
            MYSQL_ROOT_PASSWORD: 123456 #root账号密码
            MYSQL_DATABASE: manager #默认新建数据库名称
 
        stdin_open: true
        tty: true
    node: #node.js 个人目前主要用于编译
        container_name: node
        image: node
        volumes:
            - ./manager-h5:/usr/src/manager-h5 #项目
        stdin_open: true
        tty: true

修改本地的default.conf

server
{
    listen 80;
    server_name xinqiu.com;
    index index.php index.html index.htm default.php default.htm default.html;
    root /www/xinqiu/public;

    #PHP-INFO-START  PHP引用配置，可以注释或修改
    location ~ [^/]\.php(/|$)
    {
        try_files $uri =404;
        fastcgi_pass  172.18.0.1:9000;
        fastcgi_index index.php;

        fastcgi_param  SCRIPT_FILENAME    $document_root$fastcgi_script_name;
        fastcgi_param  QUERY_STRING       $query_string;
        fastcgi_param  REQUEST_METHOD     $request_method;
        fastcgi_param  CONTENT_TYPE       $content_type;
        fastcgi_param  CONTENT_LENGTH     $content_length;

        fastcgi_param  SCRIPT_NAME        $fastcgi_script_name;
        fastcgi_param  REQUEST_URI        $request_uri;
        fastcgi_param  DOCUMENT_URI       $document_uri;
        fastcgi_param  DOCUMENT_ROOT      $document_root;
        fastcgi_param  SERVER_PROTOCOL    $server_protocol;
        fastcgi_param  REQUEST_SCHEME     $scheme;
        fastcgi_param  HTTPS              $https if_not_empty;

        fastcgi_param  GATEWAY_INTERFACE  CGI/1.1;
        fastcgi_param  SERVER_SOFTWARE    nginx/$nginx_version;

        fastcgi_param  REMOTE_ADDR        $remote_addr;
        fastcgi_param  REMOTE_PORT        $remote_port;
        fastcgi_param  SERVER_ADDR        $server_addr;
        fastcgi_param  SERVER_PORT        $server_port;
        fastcgi_param  SERVER_NAME        $server_name;

        # PHP only, required if PHP was built with --enable-force-cgi-redirect
        fastcgi_param  REDIRECT_STATUS    200;

        set $real_script_name $fastcgi_script_name;
        if ($fastcgi_script_name ~ "^(.+?\.php)(/.+)$") {
                set $real_script_name $1;
                set $path_info $2;
         }
        fastcgi_param SCRIPT_FILENAME $document_root$real_script_name;
        fastcgi_param SCRIPT_NAME $real_script_name;
        fastcgi_param PATH_INFO $path_info;
    }

    #PHP-INFO-END

    #REWRITE-START URL重写规则引用,修改后将导致面板设置的伪静态规则失效
    location ~* (runtime|application)/{
        return 403;
    }
    location / {
        if (!-e $request_filename){
            rewrite  ^(.*)$  /index.php?s=$1  last;   break;
        }
    }
    #REWRITE-END

    #禁止访问的文件或目录
    location ~ ^/(\.user.ini|\.htaccess|\.git|\.env|\.svn|\.project|LICENSE|README.md)
    {
        return 404;
    }

    #一键申请SSL证书验证目录相关设置
    location ~ \.well-known{
        allow all;
    }

    #禁止在证书验证目录放入敏感文件
    if ( $uri ~ "^/\.well-known/.*\.(php|jsp|py|js|css|lua|ts|go|zip|tar\.gz|rar|7z|sql|bak)$" ) {
        return 403;
    }

    location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
    {
        expires      30d;
        error_log /dev/null;
        access_log /dev/null;
    }

    location ~ .*\.(js|css)?$
    {
        expires      12h;
        error_log /dev/null;
        access_log /dev/null;
    }
}