IT/Software/Virtualization/Containerization/Docker Compose
About
Docker Compose was created to make building multi-container apps easier and faster to put together.
Example
Apps such as Wordpress and MediaWiki require 3 main components to run, the webserver(nginx), the PHP handler, and a database(MySQL).
Here is an example docker-compose.yml config file on Pastebin because the wiki isn't set up to do code highlighting.