After updating cluster template info about node groups missed

[Vitalii Gridnev]

Steps to reproduce:

1) create cluster template with 2 node groups
2) try to update cluster template via conductor:

conductor.cluster_template_update(context.ctx(), cluster_template_id, {'name': "some_name"})

Expected result:
 name updated and cluster template still contain 2 node groups

Observed result:
 name updated and cluster template doesn't have any info about node groups

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/182783

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/182783
Committed: https://git.openstack.org/cgit/openstack/sahara/commit/?id=196f72f18e7c5649580a7746b87e35defaadb943
Submitter: Jenkins
Branch: master

commit 196f72f18e7c5649580a7746b87e35defaadb943
Author: Trevor McKay <email address hidden>
Date: Wed May 13 14:24:14 2015 -0400

    Fix cluster templates update

    This change fixes the following issues:

    * Remove _appy_defaults for cluster template fields on update
      Fields that are not specified should not be given default values
      on update like they are on creation. If a field is not specified,
      it should be left alone

    * Do not delete node groups if the cluster template update does
      specify a node_group field

    Closes-Bug: #1438077
    Change-Id: I65dd15e02871f9c7227d2b51acedd6e06cb04950

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/181477
Committed: https://git.openstack.org/cgit/openstack/sahara/commit/?id=0ba7ece84f67d6ffb88a5d01b9532b67d9a9bc9d
Submitter: Jenkins
Branch: master

commit 0ba7ece84f67d6ffb88a5d01b9532b67d9a9bc9d
Author: Trevor McKay <email address hidden>
Date: Fri May 8 13:26:24 2015 -0400

    Add "null" for fields in cluster and node group template JSON schemas

    * Change 'type' for optional fields to list including 'null'

    * Allow the default template tool to use "None" to
    unset fields with replacement values when no replacement has been
    specified.

    * Fix cluster template update code to check for explicit setting of
    the 'node_groups' field in a cluster template update

    Partial-Bug: #1438077
    Closes-Bug: #1439839

    Change-Id: Ia180867c8e3ffb502da40f169a49dd3a54c23072

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/kilo
Review: https://review.openstack.org/195998

[OpenStack Infra (hudson-openstack)]

Change abandoned by Vitaly Gridnev (<email address hidden>) on branch: stable/kilo
Review: https://review.openstack.org/195998

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/195998
Committed: https://git.openstack.org/cgit/openstack/sahara/commit/?id=2495f1af8504511ce39fda032ce2fa3e021f2b81
Submitter: Jenkins
Branch: stable/kilo

commit 2495f1af8504511ce39fda032ce2fa3e021f2b81
Author: Trevor McKay <email address hidden>
Date: Wed May 13 14:24:14 2015 -0400

    Fix cluster templates update

    This change fixes the following issues:

    * Remove _appy_defaults for cluster template fields on update
      Fields that are not specified should not be given default values
      on update like they are on creation. If a field is not specified,
      it should be left alone

    * Do not delete node groups if the cluster template update does
      specify a node_group field

    Closes-Bug: #1438077
    Change-Id: I65dd15e02871f9c7227d2b51acedd6e06cb04950
    (cherry picked from commit 196f72f18e7c5649580a7746b87e35defaadb943)