Comment 3 for bug 1686357

Reviewed: https://review.openstack.org/460232
Committed: https://git.openstack.org/cgit/openstack/puppet-pacemaker/commit/?id=0c2e23375cd27d43cdcb81c058a370874ff4d5cf
Submitter: Jenkins
Branch: master

commit 0c2e23375cd27d43cdcb81c058a370874ff4d5cf
Author: Michele Baldessari <email address hidden>
Date: Wed Apr 26 19:14:34 2017 +0200

    Add support for ipv6_addrlabel with IPaddr2 RA

    So currently when we create an IPv6 VIP in puppet the
    services running on the node where the VIP is, are susceptible
    to using the VIP as a source address in their communication.
    When the VIP relocates to another node, those TCP connections
    using the VIP as a source will be hanging until a TCP timeout
    kicks in.

    There are many ways to guide the kernel in a source address selection
    with IPv6 (call "ip -6 addr add <...> " with the "noprefixroute", use
    address labels, or simply set the deprecated option on the created
    ip address). We are choosing address labels because it is already
    supported in the resource-agents package and seems the recommended
    way of doing things.

    Partial-Bug: #1686357

    Change-Id: Ifd42683efae2cb29be3fcc1d5afdb62dad1bd82d
    Co-Authored-By: Damien Ciabrini <email address hidden>
    Co-Authored-By: John Eckersberg <email address hidden>