Use keystone wsgi_scripts

Devstack was setting up a separate directory and copying
http/keystone.py into it for the admin and public endpoints.

Keystone now defines wsgi_scripts entrypoints so that
keystone-wsgi-admin and keystone-wsgi-public are created on
install so devstack can reference these files instead.

See http://httpd.apache.org/docs/2.4/upgrading.html#access for
the apache docs with examples for the Allow|Deny/Require
directives.

Depends-On: Ic9c03e6c00408f3698c10012ca98cfc6ea9b6ace
Change-Id: Ided688be62b64066d90776313c963ec5016363f2

Author: Brant Knudson

files/apache-keystone.template

@@ -5,7 +5,7 @@ LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-agent}i\" %D(us)"
 <VirtualHost *:%PUBLICPORT%>
     WSGIDaemonProcess keystone-public processes=5 threads=1 user=%USER% display-name=%{GROUP} %VIRTUALENV%
     WSGIProcessGroup keystone-public
-    WSGIScriptAlias / %PUBLICWSGI%
+    WSGIScriptAlias / %KEYSTONE_BIN%/keystone-wsgi-public
     WSGIApplicationGroup %{GLOBAL}
     WSGIPassAuthorization On
     <IfVersion >= 2.4>
@@ -16,12 +16,22 @@ LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-agent}i\" %D(us)"
     %SSLENGINE%
     %SSLCERTFILE%
     %SSLKEYFILE%
+
+    <Directory %KEYSTONE_BIN%>
+        <IfVersion >= 2.4>
+            Require all granted
+        </IfVersion>
+        <IfVersion < 2.4>
+            Order allow,deny
+            Allow from all
+        </IfVersion>
+    </Directory>
 </VirtualHost>
 
 <VirtualHost *:%ADMINPORT%>
     WSGIDaemonProcess keystone-admin processes=5 threads=1 user=%USER% display-name=%{GROUP} %VIRTUALENV%
     WSGIProcessGroup keystone-admin
-    WSGIScriptAlias / %ADMINWSGI%
+    WSGIScriptAlias / %KEYSTONE_BIN%/keystone-wsgi-admin
     WSGIApplicationGroup %{GLOBAL}
     WSGIPassAuthorization On
     <IfVersion >= 2.4>
@@ -32,6 +42,16 @@ LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-agent}i\" %D(us)"
     %SSLENGINE%
     %SSLCERTFILE%
     %SSLKEYFILE%
+
+    <Directory %KEYSTONE_BIN%>
+        <IfVersion >= 2.4>
+            Require all granted
+        </IfVersion>
+        <IfVersion < 2.4>
+            Order allow,deny
+            Allow from all
+        </IfVersion>
+    </Directory>
 </VirtualHost>
 
 Alias /identity %PUBLICWSGI%

lib/keystone

@@ -51,11 +51,6 @@ fi
 KEYSTONE_CONF_DIR=${KEYSTONE_CONF_DIR:-/etc/keystone}
 KEYSTONE_CONF=$KEYSTONE_CONF_DIR/keystone.conf
 KEYSTONE_PASTE_INI=${KEYSTONE_PASTE_INI:-$KEYSTONE_CONF_DIR/keystone-paste.ini}
-if is_suse; then
-    KEYSTONE_WSGI_DIR=${KEYSTONE_WSGI_DIR:-/srv/www/htdocs/keystone}
-else
-    KEYSTONE_WSGI_DIR=${KEYSTONE_WSGI_DIR:-/var/www/keystone}
-fi
 
 # Set up additional extensions, such as oauth1, federation
 # Example of KEYSTONE_EXTENSIONS=oauth1,federation
@@ -132,14 +127,11 @@ function cleanup_keystone {
 
 # _cleanup_keystone_apache_wsgi() - Remove wsgi files, disable and remove apache vhost file
 function _cleanup_keystone_apache_wsgi {
-    sudo rm -f $KEYSTONE_WSGI_DIR/*
     sudo rm -f $(apache_site_config_for keystone)
 }
 
 # _config_keystone_apache_wsgi() - Set WSGI config files of Keystone
 function _config_keystone_apache_wsgi {
-    sudo mkdir -p $KEYSTONE_WSGI_DIR
-
     local keystone_apache_conf=$(apache_site_config_for keystone)
     local keystone_ssl=""
     local keystone_certfile=""
@@ -161,22 +153,17 @@ function _config_keystone_apache_wsgi {
         venv_path="python-path=${PROJECT_VENV["keystone"]}/lib/$(python_version)/site-packages"
     fi
 
-    # copy proxy vhost and wsgi file
-    sudo cp $KEYSTONE_DIR/httpd/keystone.py $KEYSTONE_WSGI_DIR/main
-    sudo cp $KEYSTONE_DIR/httpd/keystone.py $KEYSTONE_WSGI_DIR/admin
-
     sudo cp $FILES/apache-keystone.template $keystone_apache_conf
     sudo sed -e "
         s|%PUBLICPORT%|$keystone_service_port|g;
         s|%ADMINPORT%|$keystone_auth_port|g;
         s|%APACHE_NAME%|$APACHE_NAME|g;
-        s|%PUBLICWSGI%|$KEYSTONE_WSGI_DIR/main|g;
-        s|%ADMINWSGI%|$KEYSTONE_WSGI_DIR/admin|g;
         s|%SSLENGINE%|$keystone_ssl|g;
         s|%SSLCERTFILE%|$keystone_certfile|g;
         s|%SSLKEYFILE%|$keystone_keyfile|g;
         s|%USER%|$STACK_USER|g;
         s|%VIRTUALENV%|$venv_path|g
+        s|%KEYSTONE_BIN%|$KEYSTONE_BIN_DIR|g
     " -i $keystone_apache_conf
 }