Dump loaded options during start up

... so that operators can review effective values (except for secret
information such as password) from the log.

Change-Id: Ic094df537b5f7333be38c249cdec59a10d2e2660

aodh/api/app.py

@@ -86,4 +86,6 @@ def app_factory(global_config, **local_conf):
 
 
 def build_wsgi_app(argv=None):
-    return load_app(service.prepare_service(argv=argv))
+    conf = service.prepare_service(argv=argv)
+    conf.log_opt_values(LOG, log.DEBUG)
+    return load_app(conf)

aodh/cmd/alarm.py

@@ -16,15 +16,19 @@
 # under the License.
 
 import cotyledon
+from oslo_log import log
 
 from aodh import evaluator as evaluator_svc
 from aodh import event as event_svc
 from aodh import notifier as notifier_svc
 from aodh import service
 
+LOG = log.getLogger(__name__)
+
 
 def notifier():
     conf = service.prepare_service()
+    conf.log_opt_values(LOG, log.DEBUG)
     sm = cotyledon.ServiceManager()
     sm.add(notifier_svc.AlarmNotifierService,
            workers=conf.notifier.workers, args=(conf,))
@@ -33,6 +37,7 @@ def notifier():
 
 def evaluator():
     conf = service.prepare_service()
+    conf.log_opt_values(LOG, log.DEBUG)
     sm = cotyledon.ServiceManager()
     sm.add(evaluator_svc.AlarmEvaluationService,
            workers=conf.evaluator.workers, args=(conf,))
@@ -41,6 +46,7 @@ def evaluator():
 
 def listener():
     conf = service.prepare_service()
+    conf.log_opt_values(LOG, log.DEBUG)
     sm = cotyledon.ServiceManager()
     sm.add(event_svc.EventAlarmEvaluationService,
            workers=conf.listener.workers, args=(conf,))