[Bug 1456876] Re: services default to publicURL for internal communication within OpenStack

[OpenStack Infra]

Reviewed:  https://review.openstack.org/300164
Committed: https://git.openstack.org/cgit/openstack/charm-ceilometer-agent/commit/?id=959d6e7f12561ffa46fdd31e12288cabb1405eed
Submitter: Jenkins
Branch:    master

commit 959d6e7f12561ffa46fdd31e12288cabb1405eed
Author: Edward Hope-Morley <edward.hope-morley at canonical.com>
Date:   Thu Mar 31 20:12:40 2016 +0100

    Support using internal network for clients
    
    Openstack mostly defaults to using public endpoints for
    internal communication between services. This patch adds
    a new option use-internal-endpoints which, if set to True,
    will configure services to use internal endpoints where
    possible.
    
    Change-Id: I170e5e1eef3d2e3bb28d37606a468328005609d0
    Closes-Bug: 1456876


** Changed in: ceilometer-agent (Juju Charms Collection)
       Status: In Progress => Fix Committed

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https://bugs.launchpad.net/bugs/1456876

Title:
  services default to publicURL for internal communication within
  OpenStack

Status in ceilometer-agent package in Juju Charms Collection:
  Fix Committed
Status in cinder package in Juju Charms Collection:
  Fix Committed
Status in glance package in Juju Charms Collection:
  Fix Committed
Status in keystone package in Juju Charms Collection:
  Confirmed
Status in neutron-api package in Juju Charms Collection:
  Fix Committed
Status in nova-cloud-controller package in Juju Charms Collection:
  Fix Committed
Status in nova-compute package in Juju Charms Collection:
  Fix Committed
Status in swift-proxy package in Juju Charms Collection:
  Confirmed

Bug description:
  Default behavior of nova and cinder clients is to use publicURL
  endpoint, provided by keystone. While this works fine for end users,
  it also means that nova-compute will communicate with cinder over
  public network. This is suboptimal cause public endpoints do not have
  to be accessible from nova-compute nodes. What's missing in nova.conf
  is:

  cinder_catalog_info='volume:cinder:internalURL'

  changing default in charms would have a big impact on existing
  deployments that went with whatever is default (publicURL). So, if
  added, this should by default still point at publicURL, unless
  specified otherwise.

  Also, this parameter decides if nova will use cinder v1 or v2 API, so
  additional attention needs to be given to that.

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