Add publisher to ActionAlias

CHANGELOG.rst

@@ -56,6 +56,9 @@ Added
   to pants' use of PEX lockfiles. This is not a user-facing addition. #5713 #5724 #5726 #5725 #5732 #5733 #5737 #5738
   Contributed by @cognifloyd
 
+* Added publisher to ActionAlias to enable streaming ActionAlias create/update/delete events.
+  Contributed @ubaumann
+
 Changed
 ~~~~~~~
 

st2common/st2common/persistence/actionalias.py

@@ -14,13 +14,24 @@
 # limitations under the License.
 
 from __future__ import absolute_import
+from st2common import transport
 from st2common.models.db.actionalias import actionalias_access
-from st2common.persistence import base as persistence
+from st2common.persistence.base import Access
 
+__all__ = [
+    "ActionAlias",
+]
 
-class ActionAlias(persistence.Access):
+
+class ActionAlias(Access):
     impl = actionalias_access
 
     @classmethod
     def _get_impl(cls):
         return cls.impl
+
+    @classmethod
+    def _get_publisher(cls):
+        if not cls.publisher:
+            cls.publisher = transport.actionalias.ActionAliasPublisher()
+        return cls.publisher

st2common/st2common/stream/listener.py

@@ -21,10 +21,11 @@
 from kombu.mixins import ConsumerMixin
 from oslo_config import cfg
 
-from st2common.models.api.action import LiveActionAPI
+from st2common.models.api.action import LiveActionAPI, ActionAliasAPI
 from st2common.models.api.execution import ActionExecutionAPI
 from st2common.models.api.execution import ActionExecutionOutputAPI
 from st2common.transport import utils as transport_utils
+from st2common.transport.queues import STREAM_ACTIONALIAS_QUEUE
 from st2common.transport.queues import STREAM_ANNOUNCEMENT_WORK_QUEUE
 from st2common.transport.queues import STREAM_EXECUTION_ALL_WORK_QUEUE
 from st2common.transport.queues import STREAM_EXECUTION_UPDATE_WORK_QUEUE
@@ -201,6 +202,11 @@ class StreamListener(BaseListener):
 
     def get_consumers(self, consumer, channel):
         return [
+            consumer(
+                queues=[STREAM_ACTIONALIAS_QUEUE],
+                accept=["pickle"],
+                callbacks=[self.processor(ActionAliasAPI)],
+            ),
             consumer(
                 queues=[STREAM_ANNOUNCEMENT_WORK_QUEUE],
                 accept=["pickle"],

st2common/st2common/transport/actionalias.py

@@ -0,0 +1,41 @@
+# Copyright 2022 The StackStorm Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# All Exchanges and Queues related to liveaction.
+
+from __future__ import absolute_import
+from kombu import Exchange, Queue
+from st2common.transport import publishers
+
+__all__ = [
+    "ActionAliasPublisher",
+    "get_queue",
+]
+
+ACTIONALIAS_XCHG = Exchange("st2.actionalias", type="topic")
+
+
+class ActionAliasPublisher(publishers.CUDPublisher):
+    def __init__(self):
+        super(ActionAliasPublisher, self).__init__(exchange=ACTIONALIAS_XCHG)
+
+
+def get_queue(name=None, routing_key=None, exclusive=False, auto_delete=False):
+    return Queue(
+        name,
+        ACTIONALIAS_XCHG,
+        routing_key=routing_key,
+        exclusive=exclusive,
+        auto_delete=auto_delete,
+    )

st2common/st2common/transport/bootstrap_utils.py

@@ -27,6 +27,7 @@
 
 from st2common import log as logging
 from st2common.transport import utils as transport_utils
+from st2common.transport.actionalias import ACTIONALIAS_XCHG
 from st2common.transport.actionexecutionstate import ACTIONEXECUTIONSTATE_XCHG
 from st2common.transport.announcement import ANNOUNCEMENT_XCHG
 from st2common.transport.connection_retry_wrapper import ConnectionRetryWrapper
@@ -62,6 +63,7 @@
 
 # List of exchanges which are pre-declared on service set up.
 EXCHANGES = [
+    ACTIONALIAS_XCHG,
     ACTIONEXECUTIONSTATE_XCHG,
     ANNOUNCEMENT_XCHG,
     EXECUTION_XCHG,

st2common/st2common/transport/queues.py

@@ -25,6 +25,7 @@
 from kombu import Queue
 
 from st2common.constants import action as action_constants
+from st2common.transport import actionalias
 from st2common.transport import actionexecutionstate
 from st2common.transport import announcement
 from st2common.transport import execution
@@ -42,6 +43,7 @@
     "NOTIFIER_ACTIONUPDATE_WORK_QUEUE",
     "RESULTSTRACKER_ACTIONSTATE_WORK_QUEUE",
     "RULESENGINE_WORK_QUEUE",
+    "STREAM_ACTIONALIAS_QUEUE",
     "STREAM_ANNOUNCEMENT_WORK_QUEUE",
     "STREAM_EXECUTION_ALL_WORK_QUEUE",
     "STREAM_EXECUTION_UPDATE_WORK_QUEUE",
@@ -94,6 +96,10 @@
 
 
 # Used by the stream service
+STREAM_ACTIONALIAS_QUEUE = actionalias.get_queue(
+    routing_key=publishers.ANY_RK, exclusive=True, auto_delete=True
+)
+
 STREAM_ANNOUNCEMENT_WORK_QUEUE = announcement.get_queue(
     routing_key=publishers.ANY_RK, exclusive=True, auto_delete=True
 )