[Docker 배우기] Section 5. Docker Compose

Docker for the Absolute Beginner - Hands On - DevOps | Udemy

docker-compose: allows to run and manage multiple containers with a single YAML file

• dictionary with the image name, and under each image name, put parameters as key-value pairs
• putting build under the image name builds the image first before running the container
• by using version 2 of docker-compose, the images are all linked
  • need to specify version: 2 on the top
  • can add depend_on: under the image name to show dependency between containers
• by using version 3, docker swarm can be used

docker run --link [host: internal]: links containers with each other so that it is accessible within a container

networks can be set as the argument by specifying the network under the image name

 

docker-compose up: runs all the containers specified in the YAML file

 

References:

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

https://docs.docker.com/engine/reference/commandline/compose/

https://github.com/dockersamples/example-voting-app