be more defensive about existence of phase

Signed-off-by: Matthias Büchse <[email protected]>

Author: mbuechse

Tests/kaas/plugin/plugin_clusterstacks.py

@@ -25,7 +25,7 @@ def __init__(self, namespace: str, name: str):
 
     def _get_phase(self, co_api: _csh.CustomObjectsApi):
         try:
-            return _csh.get_cluster_status(co_api, self.namespace, self.name)['status']['phase']
+            return _csh.get_cluster_status(co_api, self.namespace, self.name)['status'].get('phase', 'n/a')
         except ApiException as e:
             if e.status != 404:
                 raise