CmampTask11862_Allow_dind_unit_tests_to_run_on_server_and_CI

helpers/hdocker.py

@@ -1870,7 +1870,7 @@ def run_dockerized_graphviz(
     )
     # Convert files to Docker paths.
     is_caller_host = not hserver.is_inside_docker()
-    use_sibling_container_for_callee = True
+    use_sibling_container_for_callee = False
     caller_mount_path, callee_mount_path, mount = get_docker_mount_info(
         is_caller_host, use_sibling_container_for_callee
     )