上一回學習了如何利用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建十分麻煩。為了能更高效的批量創建容器，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建，仍然以上一回的例子演示：
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
內容不復雜，具體的關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？
參見下面的目錄結構：
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建，up通常用於首次創建，可以觀察終端實時輸出的日志內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
以后台方式啟動容器。
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。
參考文章：