操作系统：阿里云esc实例centos7.4软件：docker-ce version 18.09.3, docker-compose version 1.23.2一.创建带有swoole-redis-pdo_mysql-gd扩展的docker image1.创建dockerfile文件vim dockerfile2.在dockerfile文件写入From php:7.1-fpmRUN apt-get update && apt-get install -y \ libfreetype6-dev \ libjpeg62-turbo-dev \ libpng-dev && docker-php-ext-install -j$(nproc) iconv && docker-php-ext-configure gd –with-freetype-dir=/usr/include/ –with-jpeg-dir=/usr/include/ && docker-php-ext-install -j$(nproc) gd && docker-php-ext-configure pdo_mysql && docker-php-ext-install pdo_mysql && pecl install redis-4.3.0 && pecl install swoole && docker-php-ext-enable redis swoole3.创建自定义的php镜像，主要不要漏了最后的 ‘.’，是指定当前目录构建镜像docker build -t myphp4 .运行指令，由于网络问题等，需要等比较长的时间，成功后会出现类似下面的代码…Build process completed successfullyInstalling ‘/usr/local/include/php/ext/swoole/config.h’Installing ‘/usr/local/lib/php/extensions/no-debug-non-zts-20160303/swoole.so’install ok: channel://pecl.php.net/swoole-4.3.1configuration option “php_ini” is not set to php.ini locationYou should add “extension=swoole.so” to php.iniRemoving intermediate container ad1420f7554f —> 2f2f332d73ceSuccessfully built 2f2f332d73ceSuccessfully tagged myphp4:latest至此docker 的自定义myphp4 image创建成功！二.创建docker-compose.yml文件mkdir pnsmrcd pnsmrvim docker-compose.yml写入下面代码version: ‘3.0’services:nginx: image: “nginx:latest” ports: - “10000:80” volumes: - /var/www/html:/usr/share/nginx/htmlphp-fpm: image: “myphp4” volumes: - /var/www/html:/usr/share/nginx/htmlmysql: image: “mysql:latest"redis: image: “redis:4.0"运行指令docker-compose up -d成功可以看到WARNING: The Docker Engine you’re using is running in swarm mode.Compose does not use swarm mode to deploy services to multiple nodes in a swarm. All containers will be scheduled on the current node.To deploy your application across the swarm, use docker stack deploy.Creating network “pnsmr_default” with the default driverCreating pnsmr_php-fpm_1 … doneCreating pnsmr_redis_1 … doneCreating pnsmr_mysql_1 … doneCreating pnsmr_nginx_1 … done至此，已开启nginx mysql redis php 服务三.修改各服务配置文件 1.浏览器输入 127.0.0.1:9998 #此处应输入你的服务器ip地址，可以看到下图 2.接下来要修改容器里nginx的配置文件，先使用指令查看各容器的docker IP地址docker inspect -f ‘{{.Name}} - {{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}’ $(docker ps -aq)此指令可以查看所有用docker-compose 开启的容器的ip，结果类似下图，可以用对应的ip地址进行内部通讯3.复制nginx容器的配置文件出来，并修改替换,使nginx能解析phpdocker cp pnsmr_nginx_1:/etc/nginx/conf.d/default.conf nginx.confvim nginx.conf修改为下列代码server { listen 80; server_name localhost; #charset koi8-r; #access_log /var/log/nginx/host.access.log main; location / { root /usr/share/nginx/html; index index.html index.htm; } #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root /usr/share/nginx/html; } # proxy the PHP scripts to Apache listening on 127.0.0.1:80 # #location ~ .php$ { # proxy_pass http://127.0.0.1; #} # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 # location ~ .php$ { root html; fastcgi_pass 172.24.0.3:9000;#此处需要填写你的php容器的docker内部通讯ip fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /usr/share/nginx/html/$fastcgi_script_name; include fastcgi_params; } # deny access to .htaccess files, if Apache’s document root # concurs with nginx’s one # #location ~ /.ht { # deny all; #}}docker cp nginx.conf pnsmr_nginx_1:/etc/nginx/conf.d/default.conf #将修改好的配置文件拷贝到容器里docker container stop pnsmr_nginx_1 docker container start pnsmr_nginx_1 #重启nginx容器使配置文件生效vim /var/www/html/index.php #在服务器本地目录新建 index.php 文件，输入<?php phpinfo(); 并保存vim /var/www/html/index.html #在服务器本地目录新建 index.html 文件，输出helloworld访问127.0.0.1:9998, html文件解析正常 访问127.0.0.1:9998/index.php，php文件解析正常 4.测试mysql，redis是否生效vim /var/www/html/redis.php #用于测试redis是否配置成功<?php$redis = new Redis();$redis->connect(“172.24.0.4”,6379);$redis->set(’test’,’this is a test for redis’);echo $redis->get(’test’);访问127.0.0.1:9998/redis.php，redis已生效进入mysql容器docker exec -it pnsmr_mysql_1 bash进入mysql并更改root用户密码创建测试文件vim /var/www/html/mysql.php<?php$pdo = new PDO(‘mysql:host=172.24.0.2;dbname=mysql;port=3306’,‘root’,‘root123’);var_dump($pdo);访问127.0.0.1：9998/mysql.php，mysql已生效四.总结 虽然环境是配置成功了，并可以用docker-compose up 指令一键生成，但是还要改各容器的配置文件，仍然不够方便，需要优化；另外docker的集群，堆栈功能也没用上，后面再继续学习.