From e3746dd7b4951f7d603da924b2c4134fec4cc204 Mon Sep 17 00:00:00 2001
From: Yumeng Bao <yumeng_bao@yahoo.com>
Date: Thu, 18 Oct 2018 20:44:01 -0700
Subject: [PATCH] Add WSGI support script for cyborg API

Control Plane API endpoints deployment via WSGI [1] was a community goal
in Pike release. This method provides a series of advantages over that
of running api via a Python command that runs a web server.

This patch add scripts for running API services via WSGI.
The follow-up patch will add the devstack install support.

[1]https://governance.openstack.org/tc/goals/pike/deploy-api-in-wsgi.html

Change-Id: Ifb0ae2fa2143236fb9b38d230f2604e4e560e66e
---
 cyborg/api/wsgi_app.py | 43 ++++++++++++++++++++++++++++++++++++++++++
 setup.cfg              |  2 ++
 2 files changed, 45 insertions(+)
 create mode 100644 cyborg/api/wsgi_app.py

diff --git a/cyborg/api/wsgi_app.py b/cyborg/api/wsgi_app.py
new file mode 100644
index 00000000..131aec44
--- /dev/null
+++ b/cyborg/api/wsgi_app.py
@@ -0,0 +1,43 @@
+# -*- mode: python -*-
+# -*- encoding: utf-8 -*-
+#
+# 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.
+#
+
+"""WSGI script for cyborg-api.
+
+Script for running cyborg-api under Apache2.
+"""
+
+import sys
+
+from oslo_config import cfg
+import oslo_i18n as i18n
+from oslo_log import log
+
+from cyborg.api import app
+from cyborg.common import service
+
+
+def init_application():
+    CONF = cfg.CONF
+
+    i18n.install('cyborg')
+
+    service.prepare_service(sys.argv)
+
+    LOG = log.getLogger(__name__)
+    LOG.debug("Configuration:")
+    CONF.log_opt_values(LOG, log.DEBUG)
+
+    return app.app_factory(CONF)
diff --git a/setup.cfg b/setup.cfg
index 6e77c848..942b907a 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -38,6 +38,8 @@ console_scripts =
     cyborg-conductor = cyborg.cmd.conductor:main
     cyborg-dbsync = cyborg.cmd.dbsync:main
     cyborg-agent = cyborg.cmd.agent:main
+wsgi_scripts =
+    cyborg-wsgi-api = cyborg.api.wsgi_app:init_application
 
 cyborg.database.migration_backend =
     sqlalchemy = cyborg.db.sqlalchemy.migration