Missing package dependancies added.

A missing "config" parameter for qemu-nbd based seeding
method added.

A new seeding method utilising Cloud-init added.
The qemu-nbd based method is still a default method
for backward compatibility.

To enable cloud-init, set the "seed" parameter on
a cluster or node level to "cloud-init".
To disable seeding, set this parameter to "false".
Setting this parameter to "true" will default to
the "qemu-nbd" method.

Salt Minion config file will be created automatically
and may be overrided via cluster or node level
metadata:

  salt:
    control:
      cluster:
        mycluster:
          seed: cloud-init
          cloud_init:
            user_data:
              salt_minion:
                conf:
                  master: 10.1.1.1

or for qemu-nbd case:

  salt:
    control:
      cluster:
        mycluster:
          seed: true
          config:
            host: 10.1.1.1

That may be useful when Salt Master has two IPs in
different networks and one of the networks isn't accessible
from a VM at the moment it's created. Setting a reachable
Salt master IP from metadata helps avoid potential problems.

Also, a liitle optimization has been done to parse/dump
an libvirt XML only once while modifying it.

Change-Id: I091cf409cb43ba2d0a18eaf2a08c11e88d0334e2
Closes-Bug: PROD-22191

Related PROD-23040 (PROD:23040)

Change-Id: I6cf2cb5ff66dcffb1532343a58416fb242703322

Spawning AArch64 VMs using salt.control.virt requires a few extra
domain configuration items to be configurable:
- libvirt xml: pass loader param to vm
  Based on upstream commit [1].
- libvirt xml: pass virt machine type
- libvirt xml: pass cpu mode to vm
- virt module: Allow NVRAM unlinking on DOM undefine
  UEFI-enabled VMs usually have pflash (NVRAM) devices attached,
  which require one additional libvirt flag to be passed at 'undefine'.
  This is usually the case for AArch64 (arm64) VMs, where AAVMF (AA64
  UEFI) is the only supported guest bootloader.

[1] https://github.com/saltstack/salt/commit/9cace9adb

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

This patchset obsoletes switching from "dhcp" to "static" during
deployment.

Example pillars:
salt:
  control:
    enabled: true
    virt_enabled: true
    size:
      small:
        cpu: 1
        ram: 1
    cluster:
      infra:
        domain: example.com
        engine: virt
        config:
          engine: salt
          host: master.domain.com
        cloud_init:
          network_data:
            links:
            - id: ens2
              name: ens2
              type: phy
          user_data:
            disable_ec2_metadata: true
            resize_rootfs: True
            timezone: UTC
            ssh_deletekeys: True
            ssh_genkeytypes: ['rsa', 'dsa', 'ecdsa']
            ssh_svcname: ssh
            locale: en_US.UTF-8
            disable_root: true
            apt_preserve_sources_list: false
            apt:
              sources_list: ""
              sources:
                ubuntu.list:
                  source: ${linux:system:repo:ubuntu:source}
                mcp_saltstack.list:
                  source: ${linux:system:repo:mcp_saltstack:source}
        node:
          ctl01:
            provider: kvm01.example.com
            image: ubuntu-16.04.qcow2
            size: small
            cloud_init:
              network_data:
                networks:
                - id: private-ipv4
                  ip_address: 192.168.0.161
                  link: ens2
                  netmask: 255.255.255.0
                  routes:
                  - gateway: 192.168.0.1
                    netmask: 0.0.0.0
                    network: 0.0.0.0
                  type: ipv4

Change-Id: I087518404c61e0bab2303e40957bacca94692102

Prod-Related: PROD-20747

Change-Id: Id7822963ab45ff7db3252f5329a9376aa4bf10d6

* Salt minion is unable unencrypt the messages from master during boot
    because of lack of entropy, throwing the exception:

    File "/usr/lib/python2.7/dist-packages/salt/utils/rsax931.py", line 146, in sign
    raise SSLError('Unable to encrypt message')
    SSLError: Unable to encrypt message:
    error:80064191:lib(128):osrandom_init:getrandom() initialization failed with EAGAIN. Most likely Kernel CPRNG is not se
    error:80065190:lib(128):osrandom_rand_bytes:getrandom() initialization failed.
    error:04088003:rsa routines:RSA_setup_blinding:BN lib
    error:04066044:rsa routines:RSA_EAY_PRIVATE_ENCRYPT:internal error

    After node has been booted up, and /dev/random device collected some
    extra entropy, salt-minion could start.

    This patch configures libvirt vms to use /dev/urandom for faster
    entropy regeneration

Change-Id: I470166b4424752d24ac4bb2cb87d9f99cd14752e
Co-Authored-By: Oleksandr Savatieiev <osavatieiev@mirantis.com>
Prod-Related: PROD-19711

[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