1 files changed, 76 insertions, 0 deletions
diff --git a/ironic/common/wsgi_service.py b/ironic/common/wsgi_service.py
new file mode 100644
index 000000000..c2a9f235b
--- /dev/null
+++ b/ironic/common/wsgi_service.py
@@ -0,0 +1,76 @@
+# 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.
+
+from oslo_concurrency import processutils
+from oslo_log import log
+from oslo_service import service
+from oslo_service import wsgi
+
+from ironic.api import app
+from ironic.common import exception
+from ironic.common.i18n import _
+from ironic.conf import CONF
+
+LOG = log.getLogger(__name__)
+
+
+class WSGIService(service.ServiceBase):
+    """Provides ability to launch ironic API from wsgi app."""
+
+    def __init__(self, name, use_ssl=False):
+        """Initialize, but do not start the WSGI server.
+
+        :param name: The name of the WSGI server given to the loader.
+        :param use_ssl: Wraps the socket in an SSL context if True.
+        :returns: None
+        """
+        self.name = name
+        self.app = app.VersionSelectorApplication()
+        self.workers = (CONF.api.api_workers or
+                        processutils.get_worker_count())
+        if self.workers and self.workers < 1:
+            raise exception.ConfigInvalid(
+                _("api_workers value of %d is invalid, "
+                  "must be greater than 0.") % self.workers)
+
+        self.server = wsgi.Server(CONF, name, self.app,
+                                  host=CONF.api.host_ip,
+                                  port=CONF.api.port,
+                                  use_ssl=use_ssl)
+
+    def start(self):
+        """Start serving this service using loaded configuration.
+
+        :returns: None
+        """
+        self.server.start()
+
+    def stop(self):
+        """Stop serving this API.
+
+        :returns: None
+        """
+        self.server.stop()
+
+    def wait(self):
+        """Wait for the service to stop serving this API.
+
+        :returns: None
+        """
+        self.server.wait()
+
+    def reset(self):
+        """Reset server greenpool size to default.
+
+        :returns: None
+        """
+        self.server.reset()