Enable osprofiler for api

Implements: blueprint osprofiler-support
Change-Id: Iad0168b35a89bc8d974019029b2a08e3bacb3f95

etc/vitrage/api-paste.ini

@@ -22,10 +22,10 @@ paste.app_factory = vitrage.api.app:app_factory
 root = vitrage.api.controllers.root.VersionsController
 
 [pipeline:vitragev1_keystone_pipeline]
-pipeline = cors http_proxy_to_wsgi request_id authtoken vitragev1
+pipeline = cors http_proxy_to_wsgi request_id osprofiler authtoken vitragev1
 
 [pipeline:vitragev1_noauth_pipeline]
-pipeline = cors http_proxy_to_wsgi request_id vitragev1
+pipeline = cors http_proxy_to_wsgi request_id osprofiler vitragev1
 
 [app:vitragev1]
 paste.app_factory = vitrage.api.app:app_factory
@@ -45,3 +45,6 @@ oslo_config_project = vitrage
 [filter:http_proxy_to_wsgi]
 paste.filter_factory = oslo_middleware.http_proxy_to_wsgi:HTTPProxyToWSGI.factory
 oslo_config_project = vitrage
+
+[filter:osprofiler]
+paste.filter_factory = osprofiler.web:WsgiMiddleware.factory

etc/vitrage/vitrage-config-generator.conf

@@ -7,4 +7,5 @@ namespace = oslo.middleware.healthcheck
 namespace = oslo.log
 namespace = oslo.middleware
 namespace = oslo.policy
-namespace = keystonemiddleware.auth_token
+namespace = keystonemiddleware.auth_token
+namespace = osprofiler

requirements.txt

@@ -28,3 +28,5 @@ stevedore>=1.20.0 # Apache-2.0
 voluptuous>=0.8.9 # BSD License
 sympy>=0.7.6 # BSD
 pysnmp>=4.2.3 # BSD
+osprofiler>=1.4.0 # Apache-2.0
+

vitrage/cmd/api.py

@@ -12,6 +12,8 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
+import sys
+
 from vitrage.api import app
 from vitrage import service
 
@@ -19,3 +21,6 @@ from vitrage import service
 def main():
     conf = service.prepare_service()
     app.build_server(conf)
+
+if __name__ == "__main__":
+    sys.exit(main())

vitrage/service.py

@@ -14,11 +14,14 @@
 from oslo_config import cfg
 from oslo_log import log
 from oslo_policy import opts as policy_opts
+from osprofiler import initializer as osprofiler_initializer
+from osprofiler import opts as osprofiler_opts
 from vitrage import keystone_client
 from vitrage import messaging
 from vitrage import opts
 from vitrage.opts import register_opts
 
+
 LOG = log.getLogger(__name__)
 
 
@@ -27,6 +30,7 @@ def prepare_service(args=None, conf=None, config_files=None):
         conf = cfg.ConfigOpts()
     log.register_options(conf)
     policy_opts.set_defaults(conf)
+    osprofiler_opts.set_defaults(conf)
 
     for group, options in opts.list_opts():
         conf.register_opts(list(options),
@@ -35,6 +39,14 @@ def prepare_service(args=None, conf=None, config_files=None):
     conf(args, project='vitrage', validate_default_values=True,
          default_config_files=config_files)
 
+    if conf.profiler.enabled:
+        osprofiler_initializer.init_from_conf(
+            conf=conf,
+            context=None,
+            project="vitrage",
+            service="api",
+            host=conf.api.host)
+
     for datasource in conf.datasources.types:
         register_opts(conf, datasource, conf.datasources.path)