Spawn the repo_push event in V2

Fixes #403

endpoints/v2/manifest.py

@@ -20,6 +20,8 @@ from endpoints.decorators import anon_protect
 from endpoints.v2 import v2_bp, require_repo_read, require_repo_write
 from endpoints.v2.errors import (ManifestBlobUnknown, ManifestInvalid, ManifestUnverified,
                                  ManifestUnknown, TagInvalid, NameInvalid)
+from endpoints.trackhelper import track_and_log
+from endpoints.notificationhelper import spawn_notification
 from digest import digest_tools
 from data import model
 
@@ -278,6 +280,16 @@ def _write_manifest(namespace, repo_name, manifest):
   model.tag.store_tag_manifest(namespace, repo_name, tag_name, leaf_layer.v1_metadata.docker_id,
                                manifest_digest, request.data)
 
+  # Spawn the repo_push event.
+  repo = model.repository.get_repository(namespace, repo_name)
+  if repo is not None:
+    event_data = {
+      'updated_tags': [tag_name],
+    }
+
+    track_and_log('push_repo', repo)
+    spawn_notification(repo, 'repo_push', event_data)
+
   response = make_response('OK', 202)
   response.headers['Docker-Content-Digest'] = manifest_digest
   response.headers['Location'] = 'https://fun.com'