Add delete logging and tests for logging

endpoints/key_server.py

@@ -199,6 +199,16 @@ def delete_service_key(service, kid):
     except data.model.ServiceKeyDoesNotExist:
       abort(404)
 
+    key_log_metadata = {
+      'kid': kid,
+      'signer_kid': signer_key.kid,
+      'service': service,
+      'name': signer_key.name,
+      'user_agent': request.headers.get('User-Agent'),
+      'ip': request.remote_addr,
+    }
+
+    log_action('service_key_delete', None, metadata=key_log_metadata, ip=request.remote_addr)
     return make_response('', 204)
 
   abort(403)