Update the keystone WSGI application locations

This change will update the file paths of the keystone WSGI
applications so that keystone will run properly and not just
produce errors in the logs. The virtualenvs were the primary reason
for this bug, and this solution allows for the deployment of
keystone without requiring virtualenvs provided that they override
keystone_bin.

Closes-bug: 1586161

Change-Id: Iedf4c2651d304d3034be64c781a6daf7ab0b400f
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>

tasks/keystone_install.yml

@@ -17,6 +17,18 @@
   when:
     - ansible_pkg_mgr == 'apt'
 
+- name: Create WSGI symlinks
+  file:
+    src: "{{ item.src }}"
+    dest: "/var/www/cgi-bin/keystone/{{ item.dest }}"
+    state: link
+    force: yes
+  with_items:
+    - src: "{{ keystone_bin }}/keystone-wsgi-admin"
+      dest: admin
+    - src: "{{ keystone_bin }}/keystone-wsgi-public"
+      dest: main
+
 - name: Create developer mode constraint file
   copy:
     dest: "/opt/developer-pip-constraints.txt"

tasks/keystone_post_install.yml

@@ -48,15 +48,3 @@
   notify:
     - Restart Apache
 
-- name: Drop Keystone WSGI Configs
-  template:
-    src: "{{ item.src }}"
-    dest: "{{ item.dest }}"
-    owner: "{{ keystone_system_user_name }}"
-    group: "{{ keystone_system_group_name }}"
-    mode: "{{ item.mode|default('0644') }}"
-  with_items:
-    - { src: "keystone-wsgi.py.j2", dest: "/var/www/cgi-bin/keystone/admin", mode: "0755" }
-    - { src: "keystone-wsgi.py.j2", dest: "/var/www/cgi-bin/keystone/main", mode: "0755" }
-  notify:
-    - Restart Apache

templates/keystone-wsgi.py.j2

@@ -1,43 +0,0 @@
-# Copyright 2013 OpenStack Foundation
-#
-#    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.
-
-import os
-
-import pbr.version
-_version_ = pbr.version.VersionInfo('keystone').version_string()
-
-#TODO(cloudnull) This should be removed in the N time frame
-if '8' in _version_:
-    from keystone.server import wsgi as wsgi_server
-    name = os.path.basename(__file__)
-    application = wsgi_server.initialize_application(name)
-else:
-    import os
-    from oslo_log import log
-    from oslo_log import versionutils
-    from keystone.i18n import _LW
-    from keystone.server import wsgi as wsgi_server
-    name = os.path.basename(__file__)
-    LOG = log.getLogger(__name__)
-    def deprecation_warning():
-        versionutils.report_deprecated_feature(
-            LOG,
-            _LW('httpd/keystone.py is deprecated as of Mitaka'
-                ' in favor of keystone-wsgi-admin and keystone-wsgi-public'
-                ' and may be removed in O.')
-        )
-    application = wsgi_server.initialize_application(
-        name,
-        post_log_configured_function=deprecation_warning
-    )