From 99463849ebfa9de26aa8f333b0ab8df8ba75be43 Mon Sep 17 00:00:00 2001
From: Raimund Hook <openstack@sting-ray.za.net>
Date: Thu, 18 Jul 2019 10:53:04 +0100
Subject: [PATCH] Updated multi-region docs to include keepalived
The keepalived_virtual_router_id should be changed from the default in
the case of a multi-region deployment where the VIP of the different
regions resides on the same subnet.
This is not immediately clear - this change should make it more obvious.
Change-Id: Ia4899ba407937d9f27832c9d123701729e89987a
---
doc/source/user/multi-regions.rst | 8 ++++++++
etc/kolla/globals.yml | 2 ++
2 files changed, 10 insertions(+)
diff --git a/doc/source/user/multi-regions.rst b/doc/source/user/multi-regions.rst
index 4dfad5e07b..e2a4da6c04 100644
--- a/doc/source/user/multi-regions.rst
+++ b/doc/source/user/multi-regions.rst
@@ -79,6 +79,14 @@ the value of ``kolla_internal_fqdn`` in RegionOne:
project_name: "admin"
domain_name: "default"
+.. note::
+
+ If the ``kolla_internal_vip_address`` and/or the
+ ``kolla_external_vip_address`` reside on the same subnet as
+ ``kolla_internal_fqdn_r1``, you should set the
+ ``keepalived_virtual_router_id`` value in the ``/etc/kolla/globals.yml``
+ to a unique number.
+
Configuration files of cinder,nova,neutron,glance... have to be updated to
contact RegionOne's Keystone. Fortunately, Kolla allows you to override all
configuration files at the same time thanks to the
diff --git a/etc/kolla/globals.yml b/etc/kolla/globals.yml
index f1228de56c..006c2adc2e 100644
--- a/etc/kolla/globals.yml
+++ b/etc/kolla/globals.yml
@@ -122,6 +122,8 @@
# keepalived options
####################
# Arbitrary unique number from 0..255
+# This should be changed from the default in the event of a multi-region deployment
+# where the VIPs of different regions reside on a common subnet.
#keepalived_virtual_router_id: "51"
###################