[ConfigDB] There is no human readable information about hierarchy level values

[Dmytro Fomenko]

There is no human readable information about hierarchy level values in tuning box:

nailgun=# select * from tuning_box_environment_hierarchy_level_value;
 id | level_id | value
----+----------+---------------------------
  1 | 1 | node-5.test.domain.local
  2 | 1 | node-4.test.domain.local
  3 | 1 | node-7.test.domain.local
  4 | 1 | node-6.test.domain.local
  5 | 1 | node-9.test.domain.local
  6 | 1 | node-8.test.domain.local
  7 | 1 | node-1.test.domain.local
  8 | 1 | node-3.test.domain.local
  9 | 1 | node-2.test.domain.local

We need ability to get these parameters for a tuning box environment.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/398406
Committed: https://git.openstack.org/cgit/openstack/tuning-box/commit/?id=70158d0e1f757b849200ebe4dca3c50f6d35497e
Submitter: Jenkins
Branch: master

commit 70158d0e1f757b849200ebe4dca3c50f6d35497e
Author: Alexander Kislitsky <email address hidden>
Date: Wed Nov 16 18:05:43 2016 +0300

    Hierarchy levels API handled in the fuel2

    Referecne to level values added to DB model and level marshalling.
    Fuel2 commands lvl show, lvl list added.

    Change-Id: I11fb465c00c411464d75229fc2f8bffdbb8dcc53
    Closes-Bug: #1642326

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/mitaka
Review: https://review.openstack.org/400151

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/400151
Committed: https://git.openstack.org/cgit/openstack/tuning-box/commit/?id=75ac77ead64318ca4646307a65a91e5997cf3da0
Submitter: Jenkins
Branch: stable/mitaka

commit 75ac77ead64318ca4646307a65a91e5997cf3da0
Author: Alexander Kislitsky <email address hidden>
Date: Wed Nov 16 18:05:43 2016 +0300

    Hierarchy levels API handled in the fuel2

    Referecne to level values added to DB model and level marshalling.
    Fuel2 commands lvl show, lvl list added.

    Change-Id: I11fb465c00c411464d75229fc2f8bffdbb8dcc53
    Closes-Bug: #1642326
    (cherry picked from commit 70158d0e1f757b849200ebe4dca3c50f6d35497e)

[Alexey. Kalashnikov (akalashnikov)]

verified on 9.2 snapshot 553

[Alexey. Kalashnikov (akalashnikov)]

Actually there is something wrong with output commands:

[root@nailgun ~]# fuel2 config env list
/usr/lib64/python2.7/site-packages/sqlalchemy/ext/declarative/api.py:173: SAWarning: Unmanaged access of declarative attribute __tablename__ from non-mapped class ModelMixin
  (desc.fget.__name__, cls.__name__))
+----+------------+------------------------+
| id | components | hierarchy_levels |
+----+------------+------------------------+
| 1 | [] | [] |
| 2 | [1] | [u'nodes', u'servers'] |
+----+------------+------------------------+

issue:
https://bugs.launchpad.net/fuel/+bug/1644814