# Role `docker_compose`

A role for deploying a Docker-Compose-based application.
It deploys the given Compose file, an optional `.env` file, as well as configuration files to the specified hosts and makes sure all services are up-to-date and running.
The Compose file gets deployed to `/ansible_docker_compose/compose.yaml`, the `.env` file to `/ansible_docker_compose/.env` and the configuration files get deployed into the `/ansible_docker_compose/configs/` directory.
A use case for the deployment of the additional configuration files is Composes top-level element `configs` in conjunction with the `configs` option for services.

## Supported Distributions

Should work on Debian-based distributions.

## Required Arguments

- `docker_compose__compose_file_content`: The content to deploy to the Compose file at `/ansible_docker_compose/compose.yaml`.

## Optional Arguments

- `docker_compose__env_file_content`: The content to deploy to the `.env` file at `/ansible_docker_compose/.env`.
- `docker_compose__configuration_files`: A list of configuration files to deploy to the `/ansible_docker_compose/configs/` directory.
- `docker_compose__configuration_files.*.name`: The name of the configuration file.
- `docker_compose__configuration_files.*.content`: The content to deploy to the configuration file.

## Links & Resources

- <https://docs.docker.com/compose/>
- <https://docs.docker.com/compose/compose-v2/>
- <https://docs.docker.com/compose/production/>
- <https://docs.docker.com/compose/startup-order/>
- <https://docs.docker.com/compose/compose-file/>
- <https://docs.docker.com/compose/compose-file/03-compose-file/>
- <https://docs.docker.com/compose/compose-file/08-configs/>
- <https://docs.docker.com/compose/compose-file/05-services/#configs>
- <https://docs.docker.com/engine/reference/commandline/compose_up/>
- <https://docs.docker.com/engine/reference/commandline/compose_ps/>
- <https://docs.docker.com/engine/reference/commandline/compose_down/>