Fix bug where collectstatic could error due to dispatcherd config (ansible#15999)

* Fix bug where collectstatic could error due to dispatcherd config

* Revert test because it will not work in test suite

* New publish mocking system

* Remove import of unused

* Fix default publish broker

Author: AlanCoding

awx/main/apps.py

@@ -3,6 +3,7 @@
 from dispatcherd.config import setup as dispatcher_setup
 
 from django.apps import AppConfig
+from django.db import connection
 from django.utils.translation import gettext_lazy as _
 from awx.main.utils.common import bypass_in_test, load_all_entry_points_for
 from awx.main.utils.migration import is_database_synchronized
@@ -78,12 +79,27 @@ def load_inventory_plugins(self):
             cls = entry_point.load()
             InventorySourceOptions.injectors[entry_point_name] = cls
 
-    def ready(self):
-        super().ready()
+    def configure_dispatcherd(self):
+        """This implements the default configuration for dispatcherd
 
+        If running the tasking service like awx-manage run_dispatcher,
+        some additional config will be applied on top of this.
+        This configuration provides the minimum such that code can submit
+        tasks to pg_notify to run those tasks.
+        """
         from awx.main.dispatch.config import get_dispatcherd_config
 
-        dispatcher_setup(get_dispatcherd_config())
+        if connection.vendor != 'postgresql':
+            config_dict = get_dispatcherd_config(mock_publish=True)
+        else:
+            config_dict = get_dispatcherd_config()
+
+        dispatcher_setup(config_dict)
+
+    def ready(self):
+        super().ready()
+
+        self.configure_dispatcherd()
 
         """
         Credential loading triggers database operations. There are cases we want to call

awx/main/dispatch/config.py

@@ -5,7 +5,7 @@
 from awx.main.dispatch.pool import get_auto_max_workers
 
 
-def get_dispatcherd_config(for_service: bool = False) -> dict:
+def get_dispatcherd_config(for_service: bool = False, mock_publish: bool = False) -> dict:
     """Return a dictionary config for dispatcherd
 
     Parameters:
@@ -24,20 +24,23 @@ def get_dispatcherd_config(for_service: bool = False) -> dict:
             "process_manager_kwargs": {"preload_modules": ['awx.main.dispatch.hazmat']},
         },
         "brokers": {
-            "pg_notify": {
-                "config": get_pg_notify_params(),
-                "sync_connection_factory": "ansible_base.lib.utils.db.psycopg_connection_from_django",
-                "default_publish_channel": settings.CLUSTER_HOST_ID,  # used for debugging commands
-            },
             "socket": {"socket_path": settings.DISPATCHERD_DEBUGGING_SOCKFILE},
         },
-        "publish": {
-            "default_control_broker": "socket",
-            "default_broker": "pg_notify",
-        },
+        "publish": {"default_control_broker": "socket"},
         "worker": {"worker_cls": "awx.main.dispatch.worker.dispatcherd.AWXTaskWorker"},
     }
 
+    if mock_publish:
+        config["brokers"]["noop"] = {}
+        config["publish"]["default_broker"] = "noop"
+    else:
+        config["brokers"]["pg_notify"] = {
+            "config": get_pg_notify_params(),
+            "sync_connection_factory": "ansible_base.lib.utils.db.psycopg_connection_from_django",
+            "default_publish_channel": settings.CLUSTER_HOST_ID,  # used for debugging commands
+        }
+        config["publish"]["default_broker"] = "pg_notify"
+
     if for_service:
         config["producers"] = {
             "ScheduledProducer": {"task_schedule": settings.DISPATCHER_SCHEDULE},

awx/main/tests/conftest.py

@@ -209,12 +209,6 @@ def event_qs(self):
         yield _fixture
 
 
-@pytest.fixture(scope='session', autouse=True)
-def mock_dispatcherd_publish():
-    with mock.patch('dispatcherd.brokers.pg_notify.Broker.publish_message', autospec=True):
-        yield
-
-
 @pytest.fixture
 def mock_me():
     "Allows Instance.objects.me() to work without touching the database"

awx_collection/test/awx/conftest.py

@@ -18,7 +18,7 @@
 from ansible.module_utils.six import raise_from
 
 from ansible_base.rbac.models import RoleDefinition, DABPermission
-from awx.main.tests.conftest import load_all_credentials, mock_dispatcherd_publish  # noqa: F401; pylint: disable=unused-import
+from awx.main.tests.conftest import load_all_credentials  # noqa: F401; pylint: disable=unused-import
 from awx.main.tests.functional.conftest import _request
 from awx.main.tests.functional.conftest import credentialtype_scm, credentialtype_ssh  # noqa: F401; pylint: disable=unused-import
 from awx.main.models import (

requirements/requirements.txt

@@ -128,7 +128,7 @@ deprecated==1.2.15
     #   opentelemetry-exporter-otlp-proto-http
     #   opentelemetry-semantic-conventions
     #   pygithub
-dispatcherd==2025.5.12
+dispatcherd==2025.5.21
     # via -r /awx_devel/requirements/requirements.in
 distro==1.9.0
     # via -r /awx_devel/requirements/requirements.in