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[OpenStack Infra <1860612@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.opendev.org/703685
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=7fa564ba2cc9e894c742f18efdce8715de4f1088
Submitter: Zuul
Branch:    master

commit 7fa564ba2cc9e894c742f18efdce8715de4f1088
Author: Brian Haley <bhaley@xxxxxxxxxx>
Date:   Tue Jan 21 15:02:15 2020 -0500

    Fix OVN agent devstack script to support IPv6
    
    There are variables in devstack that should be used
    for services listening endpoints which change depending
    on what SERVICE_IP_VERSION is set to, 4 or 6. Use them
    in the ovn_agent script to support IPv6.
    
    Change ovsdb-server to listen on [$SERVICE_LOCAL_HOST]
    if IPv6, else 127.0.0.1 if IPv4.
    
    Change ovn-northd to listen on 0.0.0.0 instead of
    $SERVICE_LISTEN_ADDRESS.
    
    Un-quote the metadata host address if it is IPv6, i.e.
    2001:db8::1, not [2001:db8::1].
    
    Closes-bug: #1860612
    Change-Id: I5e9b6b70b502caf9dd6ec78f293f9d4b5b45e360


** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1860612

Title:
  OVN agent devstack script doesn't support IPv6

Status in neutron:
  Fix Released

Bug description:
  The OVN agent devstack script (devstack/lib/ovn_agent) doesn't support
  IPv6 in a few ways:

  1) ovsdb-server is hardcoded to listen on 127.0.0.1, should use
  $SERVICE_LOCAL_HOST

  2) ovn-northd is hardcoded to listen on 0.0.0.0, should use
  $SERVICE_HOST

  3) networking-ovn-metadata-agent ini file uses IPv6 addresses with [],
  which will fail:

     ERROR neutron oslo_config.cfg.ConfigFileValueError: Value for option nova_metadata_host from
     LocationInfo(location=<Locations.user: (4, True)>, detail='/etc/neutron
     /networking_ovn_metadata_agent.ini') is not valid: [2620:52:0:1238:ea0c:6be4:3749:210a] is not a
     valid host address

  Fixing these three things gets an IPv6-only OVN deployment devstack
  running :) and is required to get the new IPv6-only gate job to pass -
  https://review.opendev.org/#/c/700939/

  Since I already had a change fixing #3 I will just put the other two
  changes in that as well, https://review.opendev.org/#/c/703685/

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