lib/keystone: Migrate Keystone to WSGI module path

Depends-on: https://review.opendev.org/c/openstack/keystone/+/932060
Change-Id: I10bea74fb0bce1888d324a61f23c25b8f7082e97
diff --git a/lib/keystone b/lib/keystone
index 8f4f4b1..76e2598 100644
--- a/lib/keystone
+++ b/lib/keystone
@@ -49,7 +49,7 @@
 KEYSTONE_CONF_DIR=${KEYSTONE_CONF_DIR:-/etc/keystone}
 KEYSTONE_CONF=$KEYSTONE_CONF_DIR/keystone.conf
 KEYSTONE_PUBLIC_UWSGI_CONF=$KEYSTONE_CONF_DIR/keystone-uwsgi-public.ini
-KEYSTONE_PUBLIC_UWSGI=$KEYSTONE_BIN_DIR/keystone-wsgi-public
+KEYSTONE_PUBLIC_UWSGI=keystone.wsgi.api:application
 
 # Select the Identity backend driver
 KEYSTONE_IDENTITY_BACKEND=${KEYSTONE_IDENTITY_BACKEND:-sql}
@@ -226,7 +226,7 @@
 
     iniset $KEYSTONE_CONF DEFAULT debug $ENABLE_DEBUG_LOG_LEVEL
 
-    write_uwsgi_config "$KEYSTONE_PUBLIC_UWSGI_CONF" "$KEYSTONE_PUBLIC_UWSGI" "/identity"
+    write_uwsgi_config "$KEYSTONE_PUBLIC_UWSGI_CONF" "$KEYSTONE_PUBLIC_UWSGI" "/identity" "" "keystone-api"
 
     iniset $KEYSTONE_CONF DEFAULT max_token_size 16384