devilbox/docs/configuration-files/docker-compose-override-yml.rst

docker-compose.override.yml

The docker-compose.override.yml is the configuration file where you can override existing settings from docker-compose.yml or even add completely new services.

By default, this file does not exist and you must create it. You can either copy the existing docker-compose.override.yml-example or create a new one.

Table of Contents

local

Official Docker documentation: Share Compose configurations between files and projects

Create docker-compose.override.yml

Copy example file

host> cd path/to/devilbox
host> cp docker-compose.override.yml-example docker-compose.override.yml

Create new file from scratch

1. Create an empty file within the Devilbox git directory named docker-compose.override.yml
2. Retrieve the currently used version from the existing docker-compose.yml file
3. Copy this version line to your newly created docker-compose.override.yml at the very top

# Create an empty file
host> cd path/to/devilbox
host> touch docker-compose.override.yml

# Retrieve the current version
host> grep ^version docker-compose.yml
version: '2.1'

# Add this version line to docker-compose.override.yml
host> echo "version: '2.1'" > docker-compose.override.yml

Let's see again how this file should look like now:

version: '2.1'

Note

The documentation might be outdated and the version number might already be higher. Rely on the output of the grep command.

Further reading

To dive deeper into this topic and see how to actually add new services or overwrite existing services follow the below listed links:

* add_your_own_docker_image * overwrite_existing_docker_image