From 2ad89a07979a01b177869ffc25d9c9702d63607b Mon Sep 17 00:00:00 2001
From: Takashi Kajinami <kajinamit@oss.nttdata.com>
Date: Mon, 25 Dec 2023 20:22:42 +0900
Subject: [PATCH] Load additional config files for oslo.messaging options

Currently ceilometermiddleware supports customizing only the limited
number of oslo.messaging options via proxy-server.conf. However this
does not allow configurations required by some setups. For example when
TLS is enabled in RabbitMQ, the ssl option in RabbitMQ driver but this
option is not configurable now.

This introduces a few new options so that ceilometermiddleware can load
additional config files to look up oslo.messaging options.

Closes-Bug: #1673738
Change-Id: I0cae1a0daec189669e51f89231a3d7932784420e
---
 ceilometermiddleware/swift.py                      | 14 +++++++++++++-
 .../notes/bug-1673738-ec8f7dd8ac43ad54.yaml        |  7 +++++++
 2 files changed, 20 insertions(+), 1 deletion(-)
 create mode 100644 releasenotes/notes/bug-1673738-ec8f7dd8ac43ad54.yaml

diff --git a/ceilometermiddleware/swift.py b/ceilometermiddleware/swift.py
index 04c09f4..d3f8401 100644
--- a/ceilometermiddleware/swift.py
+++ b/ceilometermiddleware/swift.py
@@ -77,6 +77,7 @@ import queue
 import threading
 import urllib.parse as urlparse
 
+CONF = cfg.CONF
 LOG = logging.getLogger(__name__)
 
 
@@ -160,10 +161,21 @@ class Swift(object):
 
         self.ignore_projects = self._get_ignore_projects(conf)
 
+        extra_config_files = conf.get('extra_config_files')
+        if extra_config_files is not None:
+            extra_config_files = list_from_csv(extra_config_files)
+
+        extra_config_dirs = conf.get('extra_config_dirs')
+        if extra_config_dirs is not None:
+            extra_config_dirs = list_from_csv(extra_config_dirs)
+
+        CONF(args=[], default_config_files=extra_config_files,
+             default_config_dirs=extra_config_dirs)
+
         oslo_messaging.set_transport_defaults(conf.get('control_exchange',
                                                        'swift'))
         self._notifier = oslo_messaging.Notifier(
-            oslo_messaging.get_notification_transport(cfg.CONF,
+            oslo_messaging.get_notification_transport(CONF,
                                                       url=conf.get('url')),
             publisher_id='ceilometermiddleware',
             driver=conf.get('driver', 'messagingv2'),
diff --git a/releasenotes/notes/bug-1673738-ec8f7dd8ac43ad54.yaml b/releasenotes/notes/bug-1673738-ec8f7dd8ac43ad54.yaml
new file mode 100644
index 0000000..9c1847c
--- /dev/null
+++ b/releasenotes/notes/bug-1673738-ec8f7dd8ac43ad54.yaml
@@ -0,0 +1,7 @@
+---
+fixes:
+  - |
+    The ceilometer middleware now supports loading additional config files to
+    look up oslo.messaging lbirary options. Set the ``extra_config_files``
+    parameter or the ``extra_config_dirs`` parameter in the ceilometer
+    middleware section in the swift proxy server config file.