Create and maintain the apps in a directory that will be used as a volume in "_infra-apps".
The applications will be:
The goals are:
to ensure that if the redirection feature is needed, the haproxy will be present even if not present in the docker image
to ensure the right version is present since the config files change between versions
to ensure noone insert custom applications in their docker image like a fake "supervisord" that will do any command as the root user