Docker-compose detailed and sample code _docker

Docker-compose Use Example

Using Docker to build a MySQL + Java service + Nginx, a total of 4 Docker containers, if used Docker run way a container to create very cumbersome. In order to create containers more efficiently, Docker introduced the Docker-compose tool to quickly fix the creation of a set of containers just by defining a docker-compose.yml file.

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:
 #  -9,082:8,080
 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

The content is not complex, the specific keyword description see the last reference article link in this article.

Question: Where is this file?

See the following directory structure:

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
 

To create a container:

CD Mysql-java-nginx
docker-compose up

It's as simple as that. The creation of all containers, up is usually used for the first time, you can observe the terminal real-time output log content to determine whether the container started normal, if there is no problem, direct CTRL + C exit, and then

Docker-compose start

Start the container in a later way.

Other orders are:

Commands: Build-       or Rebuild services help-on        a command
 kill        containers
 Logs        View output from containers
 Pause       Pause Services
 Port        Print The public port for a port Bindin G
 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 servic E
 start       Start Services
 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

Basically read the name to know the meaning.

Reference articles:

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

Thank you for reading, I hope to help you, thank you for your support for this site!