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[Akihiro Motoki <1612491@xxxxxxxxxxxxxxxxxx>]

heat panel is split out to heat-dashboard. Retargeting to heat-
dashboard.


** Project changed: horizon => heat-dashboard

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https://bugs.launchpad.net/bugs/1612491

Title:
  Glance metadefs for OS::Nova::Aggregate should be
  OS::Nova::HostAggregate

Status in Glance:
  In Progress
Status in heat-dashboard:
  In Progress

Bug description:
  https://github.com/openstack/glance/search?utf8=%E2%9C%93&q=aggregate

  The metadata definitions in etc/metadefs allow each namespace to be
  associated with a resource type in OpenStack. We realized that we used
  OS::Nova::Aggregate instead of OS::Nova::HostAggregate in Glance. This
  doesn’t align with Heat [0] or Searchlight [1]. It should be noted
  that Heat added the resource type after Glance had metadefs.

  Glance Issue:

  There are a couple of metadef files that have OS::Nova::Aggregate that
  need to change to OS::Nova::HostAggregate. I see also that OS::Nova:
  is in one of the db scripts. That script simply adds some initial
  "resource types" to the database. [3]. It should be noted that there
  is no hard dependency on that resource type in the DB script. You can
  add new resource types at any time via API or JSON files and they are
  automatically added.

  The DB will need to be upgraded similar to
  https://review.openstack.org/#/c/272271/

  Horizon Issue:

  The aggregate update metadata action should retrieve
  OS::Nova::HostAggregate instead. The Horizon patch shouldn't merge
  until the glance patch merges, but there is not an actual hard
  dependency between the two.  Horizon may need to request both in order
  to be backwards compatible.

  [0] http://docs.openstack.org/developer/heat/template_guide/openstack.html#OS::Nova::HostAggregate
  [1] https://github.com/openstack/horizon/blob/master/openstack_dashboard/static/app/core/metadata/metadata.service.js#L86
  [3] https://github.com/openstack/glance/search?utf8=%E2%9C%93&q=aggregate

  The main concern I have is that with the new resource registry, we
  will register Host Aggregates as OS::Nova::HostAggregate.  It just
  won't align.

  The overall changes here are simple, but may have backwards
  compatibility concerns with older Glance installations.

  Finally:

  It should be noted that updating namespaces in Glance is already
  possible with glance-manage. E.g.

  /opt/stack/glance$ glance-manage db_load_metadefs etc/metadefs -h
  usage: glance-manage db_load_metadefs [-h]
                                        [path] [merge] [prefer_new] [overwrite]

  positional arguments:
    path
    merge
    prefer_new
    overwrite

  So, you just have to call:

  /opt/stack/glance$ glance-manage db_load_metadefs etc/metadefs true
  true

  See also: https://youtu.be/zJpHXdBOoeM

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