[Fix] Doc

Issue: - It is not possible to pass [R]andom [N]umber [G]enerator
         device to libvirt guest xml in order to control entropy.

       - Doc has no information on how to provision vms using salt

Solution: - Pass rng parameters via kwargs from node: pillar
            Attach rng xml object to generated xml.

          - Provide with an example

Prod-Related: PROD-19214
Customer-Found
Change-Id: Iea111f2d927edf46f06bb7ccfad06d37b752fba9

Change-Id: I16a340051a2e1b2202b23f2fd3a6bab20b363ee8

Change-Id: I6f206ad2af8cc2664c1f1fa315833d9502c34851

Change-Id: Ia46969bab0bf7eec118d68f67a491de9cf726994

Change-Id: I462f47d01bd8d2b249ff059a0efd0271929691f7

The patch deletes deprecated cmd.run function which actually
was defined in salt 2016 as alias for cmd.shell therefore this
change supports backward compatibility.

Change-Id: I47eae0b8ee45ca1a1a9b3e8e544c893614573fda
Related-PROD: 17056

* Extend some logs

Change-Id: Ica9b2031f08b1e5492b375e7476d408ed48698fe

Change-Id: I685de4207f1f7f17264cc4ad2d81c3348ca20074

* Fix glob path, since :
    ipdb> print '{}/*/*/schemas/*.yaml'.format(_get_base_dir())
    /usr/share/salt-formulas/env/*/*/schemas/*.yaml
    Process empty list:
    ipdb> print schemas
    []

Change-Id: I6ad048cb601baea9282e3c2a30fb79fdddd1ee0b

* Added support for backup

EME-13

Change-Id: I11cabb77bb66f3e9f1e35c9a00c9c196ded0ceb3

salt custom py module seedng.py should use the same Salt version
when preinstalling minion for salt-controlled VMs via bootstrap
script.

Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

Change-Id: I772495c38ed5dc21ad833f3c0f351384942e2b23

Do not change VCP disk profile globally, it causes to re-use
the properties from one node in another.

Change-Id: Iff98010c32c1060b50bc0ae040edb72108c57da1

Example:

parameters:
  salt:
    control:
      size: #RAM 4096,8192,16384,32768,65536
        openstack.control:
          cpu: 8
          ram: 32768
          disk_profile: small_two_disks
          net_profile: default

  virt:
    disk:
      small_two_disks:
        - system:
            size: 50000
            image: http:/path/to/image.qcow2
        - cinder-volume:
            size: 50000

Change-Id: Ie092b77627cb2b1d36ba4b7a2a7d749ad91881c8

Change-Id: I8fe09f450695eaad1546262cef8df5bc4bb02308

Change-Id: Ifac3f5e03099e8190db0a3af62a7be1f762f87be

Change-Id: Ic40eeb417175dff9f22fb4c34509b4c495cb5c36