We are using Docker Swarm and we decided to build tooling that makes using docker stack easier.
For now all it does is enabling rolling upgrades to configs and secrets by rewriting the stack file to include SHA-1 hashes of the secret contents.
Other things that are planned are:
1. Templating support for (relevant) parts of the YAML file. 2. Integration with https://github.com/sudo-bmitch/docker-stack-wait (or reimplementation)