docker: install ansible-galaxy contents if desired #1970
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This PR adds the ability to install ansible-galaxy collections and roles on Semaphore startup when using the Docker image, so collections and/or roles don't need to be installed every time a task is launched.
The approach is very similar to what can be accomplished with the "pre-commands" in the systemd service as described in the manual installation section of the administration guide.
Assuming you have the following
requirements.yml
:Mount it to the Semaphore container with the docker compose service entry: