tests: fix integration tests to use localhost

The same issue as in ansible/event-driven-ansible#204

tests/integration/event_source/test_insights_source.py

@@ -34,7 +34,7 @@ def test_insights_source_sanity(run_rulebook, current_collection):
     ]
 
     port = 5000
-    url = f"http://127.0.0.1:{port}/endpoint"
+    url = f"http://localhost:{port}/endpoint"
 
     env = os.environ.copy()
     env["ANSIBLE_COLLECTIONS_PATH"] = str(current_collection)
@@ -67,7 +67,7 @@ def test_insights_source_unauthorized(run_rulebook, current_collection):
     of the Insights source plugin.
     """
     port = 5000
-    url = f"http://127.0.0.1:{port}/endpoint"
+    url = f"http://localhost:{port}/endpoint"
 
     env = os.environ.copy()
     env["ANSIBLE_COLLECTIONS_PATH"] = str(current_collection)

tests/unit/event_source/test_insights.py

@@ -27,7 +27,7 @@ async def cancel_code(server_task):
 async def test_cancel():
     queue = asyncio.Queue()
 
-    args = {"host": "127.0.0.1", "port": 8001}
+    args = {"host": "localhost", "port": 8001}
     plugin_task = asyncio.create_task(start_server(queue, args))
     cancel_task = asyncio.create_task(cancel_code(plugin_task))
 
@@ -47,7 +47,7 @@ async def test_cancel():
 async def test_post_endpoint(token, auth_header, request):
     queue = asyncio.Queue()
 
-    args = {"host": "127.0.0.1", "port": 8000 + (hash(request.node.callspec.id) % 1000)}
+    args = {"host": "localhost", "port": 8000 + (hash(request.node.callspec.id) % 1000)}
     if token:
         args["token"] = token