Add IPv6 support to devstack infrastructure
By default, most Openstack services are bound to 0.0.0.0
and service endpoints are registered as IPv4 addresses.
With this change we introduce two new variables to control
this behavior:
SERVICE_IP_VERSION - can either be "4" or "6".
When set to "4" (default if not set) devstack will operate
as today - most services will open listen sockets on 0.0.0.0
and service endpoints will be registered using HOST_IP as the
address.
When set to "6" devstack services will open listen sockets on ::
and service endpoints will be registered using HOST_IPV6 as the
address.
There is no support for "4+6", more work is required for that.
HOST_IPV6 - if SERVICE_IP_VERSION=6 this must be an IPv6
address configured on the system.
Some existing services, like the Openvswitch agent, will continue
to use IPv4 addresses for things like tunnel endpoints. This is
a current restriction in the code and can be updated at a later
time. This change is just a first step to supporting IPv6-only
control and data planes in devstack.
This change is also partly based on two previous patches,
https://review.openstack.org/#/c/140519/ and
https://review.openstack.org/#/c/176898/
Change-Id: I5c0b775490ce54ab104fd5e89b20fb700212ae74
Co-Authored-By: Sean Collins <sean@coreitpro.com>
Co-Authored-By: Baodong Li <baoli@cisco.com>
Co-Authored-By: Sridhar Gaddam <sridhar.gaddam@enovance.com>
Co-Authored-By: Adam Kacmarsky <adam.kacmarsky@hp.com>
Co-Authored-By: Jeremy Alvis <jeremy.alvis@hp.com>
diff --git a/lib/database b/lib/database
index ff1fafe..5bbbe31 100644
--- a/lib/database
+++ b/lib/database
@@ -70,10 +70,19 @@
# For backward-compatibility, read in the MYSQL_HOST/USER variables and use
# them as the default values for the DATABASE_HOST/USER variables.
- MYSQL_HOST=${MYSQL_HOST:-127.0.0.1}
+ MYSQL_HOST=${MYSQL_HOST:-$SERVICE_LOCAL_HOST}
MYSQL_USER=${MYSQL_USER:-root}
- DATABASE_HOST=${DATABASE_HOST:-${MYSQL_HOST}}
+ # Set DATABASE_HOST equal to MYSQL_HOST. If SERVICE_IP_VERSION is equal to 6,
+ # set DATABASE_HOST equal to [MYSQL_HOST]. MYSQL_HOST cannot use brackets due
+ # to mysql not using bracketing for IPv6 addresses. DATABASE_HOST must have brackets
+ # due to sqlalchemy only reading IPv6 addresses with brackets.
+ if [[ "$SERVICE_IP_VERSION" == 6 ]]; then
+ DATABASE_HOST=${DATABASE_HOST:-[$MYSQL_HOST]}
+ else
+ DATABASE_HOST=${DATABASE_HOST:-${MYSQL_HOST}}
+ fi
+
DATABASE_USER=${DATABASE_USER:-${MYSQL_USER}}
if [ -n "$MYSQL_PASSWORD" ]; then