Pass version and description into oslo setup

Following setup adds version of monasca-persister
into oslo setup

Change-Id: I22aaaac2fcfdd2849b44a95979c23473488dd2c3

monasca_persister/persister.py

@@ -32,6 +32,7 @@ from oslo_config import cfg
 from oslo_log import log
 
 from monasca_persister.repositories import persister
+from monasca_persister import version
 
 LOG = log.getLogger(__name__)
 
@@ -132,14 +133,21 @@ def start_process(respository, kafka_config):
     m_persister.run()
 
 
-def main():
+def _init_config():
     log.register_options(cfg.CONF)
     log.set_defaults()
-    cfg.CONF(sys.argv[1:], project='monasca', prog='persister')
-    log.setup(cfg.CONF, "monasca-persister")
+    cfg.CONF(prog='persister',
+             project='monasca',
+             version=version.version_str,
+             description='Persists metrics & alarm history in TSDB')
+    log.setup(cfg.CONF, 'monasca-persister', version=version.version_str)
 
+
+def main():
     """Start persister."""
 
+    _init_config()
+
     metric_repository = simport.load(cfg.CONF.repositories.metrics_driver)
     alarm_state_history_repository = simport.load(cfg.CONF.repositories.alarm_state_history_driver)
 

monasca_persister/version.py

@@ -0,0 +1,18 @@
+# Copyright 2017 FUJITSU LIMITED
+#
+# 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.
+
+import pbr.version
+
+version_info = pbr.version.VersionInfo('monasca-persister')
+version_str = version_info.version_string()