[10.0 swarm] Nailgun returns a wrong ips list for custom nodegroup

[Sergey Novikov]

Detailed bug description:

The issue was found by https://product-ci.infra.mirantis.net/job/10.0.system_test.ubuntu.multiracks_2/231/testReport/(root)/two_nodegroups_network_templates/two_nodegroups_network_templates/

Steps to reproduce:

            1. Bootstrap 3 slaves from default nodegroup
            2. Create cluster with Neutron VXLAN and custom nodegroups
            3. Bootstrap 2 slaves nodes from custom nodegroup
            4. Add 3 controller nodes from default nodegroup
            5. Add 2 compute+cinder nodes from custom nodegroup
            6. Upload 'two_nodegroups' network template [0]
            7. Verify networks
            8. Deploy cluster
            9. Get info about nodes. For example from CLI

[root@nailgun ~]# fuel node
id | status | name | cluster | ip | mac | roles | pending_roles | online | group_id
---+--------+-------------------------+---------+-------------+-------------------+-----------------+---------------+--------+---------
 2 | ready | slave-02_controller | 1 | 10.109.27.5 | 64:a5:08:94:42:cd | controller | | 1 | 1
 3 | ready | slave-03_controller | 1 | 10.109.27.6 | 64:52:0f:15:a4:94 | controller | | 1 | 1
 5 | ready | slave-05_compute_cinder | 1 | 10.109.16.3 | 64:00:f4:c4:33:09 | cinder, compute | | 1 | 3
 4 | ready | slave-04_compute_cinder | 1 | 10.109.16.2 | 64:70:21:fa:22:e1 | cinder, compute | | 1 | 3
 1 | ready | slave-01_controller | 1 | 10.109.27.4 | 64:e7:e8:7a:a5:c5 | controller | | 1 | 1

for nodes 4 and 5 there are wrong ips. Actually these ips (10.109.16.xxx) are belong to public network

[root@nailgun ~]# fuel network-group list
id | name | vlan_start | cidr | gateway | group_id
---+---------------+------------+----------------+-------------+---------
4 | storage | | 10.109.24.0/24 | 10.109.24.1 | 1
3 | management | | 10.109.23.0/24 | 10.109.23.1 | 1
2 | public | | 10.109.17.0/24 | 10.109.17.1 | 1
5 | private | 103 | 10.109.22.0/24 | 10.109.22.1 | 1
6 | public | | 10.109.15.0/24 | 10.109.15.1 | 2
7 | management | 102 | 10.109.25.0/24 | 10.109.25.1 | 2
8 | storage | 101 | 10.109.24.0/24 | 10.109.24.1 | 2
9 | private | 103 | 10.109.21.0/24 | 10.109.21.1 | 2
10 | fuelweb_admin | | 10.109.18.0/24 | 10.109.18.2 | 2
11 | public | | 10.109.16.0/24 | 10.109.16.1 | 3
14 | private | 103 | 10.109.20.0/24 | 10.109.20.1 | 3
15 | fuelweb_admin | | 10.109.19.0/24 | 10.109.19.2 | 3
1 | fuelweb_admin | | 10.109.27.0/24 | 10.109.27.1 |
13 | storage | | 10.109.24.0/24 | 10.109.24.1 | 3
12 | management | | 10.109.26.0/24 | 10.109.26.1 | 3

[0] - https://github.com/openstack/fuel-qa/blob/stable/newton/fuelweb_test/network_templates/two_nodegroups.yaml