feat: ❇️ label endpoint as unknown if 501 is returned

Author: newgene

src/utils/monitor.py

@@ -154,6 +154,10 @@ def test_endpoint(self, _endpoint, _endpoint_info):
 
                     if status == 200:
                         return 'pass'
+                    elif status == 501:
+                        # label the endpoint as "unknown", if the request returns 501 NOT INPLEMENTED
+                        self.logger.debug('%s returns 501 NOT IMPLEMENTED, therefore skipped.', _endpoint)
+                        return 'unknown'
                     else:
                         self._uptime_msg.append(_endpoint + ': Got status (' + status + ')')
                         return 'fail'