Payload sent by Docker Hub
This seems similar to GitHub.
{ "push_data":{ "pushed_at":1385141110, "images":[ "imagehash1", "imagehash2", "imagehash3" ], "pusher":"username" }, "repository":{ "status":"Active", "description":"my docker repo that does cool things", "is_trusted":false, "full_description":"This is my full description", "repo_url":"https://registry.hub.docker.com/u/username/reponame/", "owner":"username", "is_official":false, "is_private":false, "name":"reponame", "namespace":"username", "star_count":1, "comment_count":1, "date_created":1370174400, "dockerfile":"my full dockerfile is listed here", "repo_name":"username/reponame" } }