Cage is an open-source wrapper around Docker Compose that lets you configure and run multiple dependent components as a larger application. It lets you orchestrate the execution of components such as Docker images, service source code from repo, scripts to load datastores and pods, which are containers that run together as a unit. Cage uses the Docker Compose v2 configuration file format. It addresses some of the Docker Compose gaps such as supporting multiple environments, including the dev environment for running a distributed application on the local developer machine and the test environment for running integration tests and production.