Fix registry tests

test/registry_tests.py

@@ -285,7 +285,7 @@ class V2RegistryMixin(BaseRegistryMixin):
     params = {
       'account': username,
       'scope': 'repository:%s/%s:%s' % (namespace, repository, ','.join(scopes)),
-      'service': 'quay'
+      'service': app.config['SERVER_HOSTNAME'],
     }
 
     response = self.conduct('GET', '/v2/auth', params=params, auth=(username, password),