Revert "Drop keystone dedicated ports"

This reverts commit f6286cb586eb1f861866bfdf85c4f873c79fd592.

This patch is blocking glance as it needs mod_wsgi to perform new import workflow.

Change-Id: I4475247dfe986114d37678b3d3d552c0c7d02ddc
diff --git a/doc/source/configuration.rst b/doc/source/configuration.rst
index ec4a9c8..22f5999 100644
--- a/doc/source/configuration.rst
+++ b/doc/source/configuration.rst
@@ -137,7 +137,7 @@
 
     ::
 
-        OS_AUTH_URL=http://$SERVICE_HOST/identity/v3.0
+        OS_AUTH_URL=http://$SERVICE_HOST:5000/v3.0
 
 KEYSTONECLIENT\_DEBUG, NOVACLIENT\_DEBUG
     Set command-line client log level to ``DEBUG``. These are commented
@@ -685,6 +685,16 @@
 KEYSTONE_REGION_NAME has a default value the same as REGION_NAME thus we omit
 it in the configuration of RegionOne.
 
+Disabling Identity API v2
++++++++++++++++++++++++++
+
+The Identity API v2 is deprecated as of Mitaka and it is recommended to only
+use the v3 API. It is possible to setup keystone without v2 API, by doing:
+
+::
+
+    ENABLE_IDENTITY_V2=False
+
 .. _arch-configuration:
 
 Architectures