Docker Compose

Why Docker Compose?

• to configure relationships between containers
• save our docker container run settings in yaml file
• startup an environment with a simple command

Docker Compose is comprised of 2 related things:

1. a yaml file describing options for:
   • containers
   • volumes
   • networks
2. a CLI tool docker-compose used to read the yaml file.

For practicing, clone the course's repo and check the compose-sample-2/ directory. The docker-compose.yml contains configs for an nginx container, to run as a proxy for an apache server, acting as a web server.