populate cluster config from client.authentication.k8s.io/exec extension

Author: wkloucek

kubernetes/base/config/exec_provider.py

@@ -58,7 +58,7 @@ def __init__(self, exec_config, cwd, cluster=None):
         else:
             self.cluster = None
         self.cwd = cwd or None
-    
+
     @property
     def shell(self):
         # for windows systems `shell` should be `True`
@@ -81,6 +81,10 @@ def run(self, previous_response=None):
             kubernetes_exec_info['spec']['response'] = previous_response
         if self.cluster:
             kubernetes_exec_info['spec']['cluster'] = self.cluster.value
+            for extension in self.cluster.value["extensions"]:
+                if extension["name"] == "client.authentication.k8s.io/exec":
+                    kubernetes_exec_info["spec"]["cluster"]["config"] = extension["extension"]
+                    break
 
         self.env['KUBERNETES_EXEC_INFO'] = json.dumps(kubernetes_exec_info)
         process = subprocess.Popen(