利用docker搭建一個mysql + java service + nginx，總共4個docker容器，如果采用docker run的方式一個一個容器去創(chuàng)建十分麻煩。為了能更高效的批量創(chuàng)建容器，docker推出了docker-compose工具，只需要定義一個docker-compose.yml文件即可快速搞定一組容器的創(chuàng)建，

mysql:
 image: daocloud.io/yjmyzz/mysql-osx:latest
 volumes:
   - ./mysql/db:/var/lib/mysql
 ports:
   - 3306:3306
 environment:
   - MYSQL_ROOT_PASSWORD=123456
 
service1:
 image: java:latest
 volumes:
   - ./java:/opt/app
 expose:
   - 8080
 #ports:
 #  - 9081:8080
 links:
   - mysql:default
 command: java -jar /opt/app/spring-boot-rest-framework-1.0.0.jar
 
service2:
 image: java:latest
 volumes:
   - ./java:/opt/app
 expose:
   - 8080
 #ports:
 #  - 9082:8080
 links:
   - mysql:default
 command: java -jar /opt/app/spring-boot-rest-framework-1.0.0.jar
 
nginx1:
  image: nginx:latest
  volumes:
   - ./nginx/html:/usr/share/nginx/html:ro
   - ./nginx/nginx.conf:/etc/nginx/nginx.conf:ro
   - ./nginx/conf.d:/etc/nginx/conf.d:ro
  #expose:
  #  - 80
  ports:
   - "80:80"
  links:
   - service1:service1
   - service2:service2

內(nèi)容不復雜，具體的關(guān)鍵字說明見本文最后的參考文章鏈接。

問題：這個文件放在哪里？

參見下面的目錄結(jié)構(gòu)：

mysql-java-nginx
├── docker-compose.yml
├── java
│  └── spring-boot-rest-framework-1.0.0.jar
├── mysql
│  └── db
└── nginx
  ├── conf
  ├── conf.d
  │  └── default.conf
  ├── html
  │  └── index.html
  └── nginx.conf

創(chuàng)建容器：

cd mysql-java-nginx
docker-compose up

就是這么簡單，一個up就搞定了所有容器的創(chuàng)建，up通常用于首次創(chuàng)建，可以觀察終端實時輸出的日志內(nèi)容判斷容器是否啟動正常，如果沒什么問題，直接Ctrl+C退出，然后

docker-compose start

以后臺方式啟動容器。　　

其它命令還有：

Commands:
 build       Build or rebuild services
 help        Get help on a command
 kill        Kill containers
 logs        View output from containers
 pause       Pause services
 port        Print the public port for a port binding
 ps         List containers
 pull        Pulls service images
 restart      Restart services
 rm         Remove stopped containers
 run        Run a one-off command
 scale       Set number of containers for a service
 start       Start services
 stop        Stop services
 unpause      Unpause services
 up         Create and start containers
 migrate-to-labels Recreate containers to add labels
 version      Show the Docker-Compose version information

基本上看名字就知道意思了?！　?/p>

參考文章：

https://docs.docker.com/compose/compose-file/

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