Handle error in Kubernetes proxy __del__

Author: Aflynn50

juju/client/proxy/kubernetes/proxy.py

@@ -2,11 +2,14 @@
 # Licensed under the Apache V2, see LICENCE file for details.
 import os
 import tempfile
+import logging
 
 from juju.client.proxy.proxy import Proxy, ProxyNotConnectedError
 from kubernetes import client
 from kubernetes.stream import portforward
 
+log = logging.getLogger('juju.client.connection')
+
 
 class KubernetesProxy(Proxy):
     def __init__(
@@ -60,7 +63,10 @@ def connect(self):
 
     def __del__(self):
         self.close()
-        os.unlink(self.temp_ca_file.name)
+        try:
+            os.unlink(self.temp_ca_file.name)
+        except FileNotFoundError:
+            log.debug(f"file {self.temp_ca_file.name} not found")
 
     def close(self):
         try: