Do not set signal when not in main thread

Resource.__enter__ calls signal which
cannot be called when in a different
thread from main.

Author: sarahbx

ocp_resources/resource.py

@@ -6,6 +6,7 @@
 import os
 import re
 import sys
+import threading
 from collections.abc import Callable, Generator
 from io import StringIO
 from signal import SIGINT, signal
@@ -582,7 +583,8 @@ def to_dict(self) -> None:
         self._base_body()
 
     def __enter__(self) -> Any:
-        signal(SIGINT, self._sigint_handler)
+        if threading.current_thread().native_id == threading.main_thread().native_id:
+            signal(SIGINT, self._sigint_handler)
         return self.deploy(wait=self.wait_for_resource)
 
     def __exit__(