refactor apex installer

JIRA: DOCTOR-100

Change-Id: I684071d35aac99ad1f5b65ae74e0a98ac726af35
Signed-off-by: dongwenjuan <dong.wenjuan@zte.com.cn>

1 files changed, 44 insertions, 0 deletions

diff --git a/tests/installer/common/set_ceilometer.py b/tests/installer/common/set_ceilometer.py
new file mode 100644
index 00000000..f5946cb2
--- /dev/null
+++ b/tests/installer/common/set_ceilometer.py
@@ -0,0 +1,44 @@
+##############################################################################
+# Copyright (c) 2017 ZTE Corporation and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+import os
+import shutil
+import yaml
+
+ep_file = '/etc/ceilometer/event_pipeline.yaml'
+ep_file_bak = '/etc/ceilometer/event_pipeline.yaml.bak'
+event_notifier_topic = 'notifier://?topic=alarm.all'
+
+
+def set_notifier_topic():
+    config_modified = False
+
+    if not os.path.isfile(ep_file):
+        raise Exception("File doesn't exist: %s." % ep_file)
+
+    with open(ep_file, 'r') as file:
+        config = yaml.safe_load(file)
+
+    sinks = config['sinks']
+    for sink in sinks:
+        if sink['name'] == 'event_sink':
+            publishers = sink['publishers']
+            if event_notifier_topic not in publishers:
+                print('Add event notifier in ceilometer')
+                publishers.append(event_notifier_topic)
+                config_modified = True
+            else:
+                print('NOTE: event notifier is configured in ceilometer as we needed')
+
+    if config_modified:
+        shutil.copyfile(ep_file, ep_file_bak)
+        with open(ep_file, 'w+') as file:
+            file.write(yaml.safe_dump(config))
+
+
+set_notifier_topic()