config options: centralize section "wsgi"

The config options of the "nova.conf" section "wsgi"
got moved to the new central location "nova/conf/wsgi.py".

Change-Id: I4bf8ea48c374d5d35fbbd37c125607e05d3679e1
Implements: blueprint centralize-config-options

nova/conf/__init__.py

@@ -72,7 +72,7 @@ from nova.conf import virt
 # from nova.conf import vnc
 # from nova.conf import volume
 # from nova.conf import workarounds
-# from nova.conf import wsgi
+from nova.conf import wsgi
 # from nova.conf import xenserver
 # from nova.conf import xvp
 # from nova.conf import zookeeper
@@ -132,7 +132,7 @@ virt.register_opts(CONF)
 # vnc.register_opts(CONF)
 # volume.register_opts(CONF)
 # workarounds.register_opts(CONF)
-# wsgi.register_opts(CONF)
+wsgi.register_opts(CONF)
 # xenserver.register_opts(CONF)
 # xvp.register_opts(CONF)
 # zookeeper.register_opts(CONF)

nova/conf/wsgi.py

@@ -0,0 +1,92 @@
+# Copyright 2015 OpenStack Foundation
+# All Rights Reserved.
+#
+#    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_config import cfg
+
+api_paste_config_opt = cfg.StrOpt('api_paste_config',
+         default="api-paste.ini",
+         help='File name for the paste.deploy config for nova-api')
+
+wsgi_log_format_opt = cfg.StrOpt('wsgi_log_format',
+         default='%(client_ip)s "%(request_line)s" status: %(status_code)s'
+                 ' len: %(body_length)s time: %(wall_seconds).7f',
+         help='A python format string that is used as the template to '
+              'generate log lines. The following values can be formatted '
+              'into it: client_ip, date_time, request_line, status_code, '
+              'body_length, wall_seconds.')
+
+secure_proxy_ssl_header_opt = cfg.StrOpt('secure_proxy_ssl_header',
+         help='The HTTP header used to determine the scheme for the '
+              'original request, even if it was removed by an SSL '
+              'terminating proxy. Typical value is '
+              '"HTTP_X_FORWARDED_PROTO".')
+
+ssl_ca_file_opt = cfg.StrOpt('ssl_ca_file',
+         help="CA certificate file to use to verify "
+              "connecting clients")
+
+ssl_cert_file_opt = cfg.StrOpt('ssl_cert_file',
+         help="SSL certificate of API server")
+
+ssl_key_file_opt = cfg.StrOpt('ssl_key_file',
+         help="SSL private key of API server")
+
+tcp_keepidle_opt = cfg.IntOpt('tcp_keepidle',
+         default=600,
+         help="Sets the value of TCP_KEEPIDLE in seconds for each "
+              "server socket. Not supported on OS X.")
+
+wsgi_default_pool_size_opt = cfg.IntOpt('wsgi_default_pool_size',
+         default=1000,
+         help="Size of the pool of greenthreads used by wsgi")
+
+max_header_line_opt = cfg.IntOpt('max_header_line',
+         default=16384,
+         help="Maximum line size of message headers to be accepted. "
+              "max_header_line may need to be increased when using "
+              "large tokens (typically those generated by the "
+              "Keystone v3 API with big service catalogs).")
+
+wsgi_keep_alive_opt = cfg.BoolOpt('wsgi_keep_alive',
+         default=True,
+         help="If False, closes the client socket connection "
+              "explicitly.")
+
+client_socket_timeout_opt = cfg.IntOpt('client_socket_timeout', default=900,
+         help="Timeout for client connections' socket operations. "
+              "If an incoming connection is idle for this number of "
+              "seconds it will be closed. A value of '0' means "
+              "wait forever.")
+
+ALL_OPTS = [api_paste_config_opt,
+            wsgi_log_format_opt,
+            secure_proxy_ssl_header_opt,
+            ssl_ca_file_opt,
+            ssl_cert_file_opt,
+            ssl_key_file_opt,
+            tcp_keepidle_opt,
+            wsgi_default_pool_size_opt,
+            max_header_line_opt,
+            wsgi_keep_alive_opt,
+            client_socket_timeout_opt
+            ]
+
+
+def register_opts(conf):
+    conf.register_opts(ALL_OPTS)
+
+
+def list_opts():
+    return {"DEFAULT": ALL_OPTS}