airbnb/synapse — pull request #95 by bcicen (2014-10-17 20:21:44+00:00)
Title: Add optional image_tag param to docker watcher

To explicitly discover only containers running image_name:image_tag. I've found this to be quite valuable in the deploy cycle as I can bring up containers and move them to the tag defined in synapse config when I'm ready for them to be discovered. README updated to reflect.