Comment 13 for bug 1490536

Verified on iso #427
[root@nailgun ~]# cat /etc/fuel/version.yaml
VERSION:
  feature_groups:
    - mirantis
  production: "docker"
  release: "8.0"
  api: "1.0"
  build_number: "427"
  build_id: "427"
  fuel-nailgun_sha: "9ebbaa0473effafa5adee40270da96acf9c7d58a"
  python-fuelclient_sha: "4f234669cfe88a9406f4e438b1e1f74f1ef484a5"
  fuel-agent_sha: "df16d41cd7a9445cf82ad9fd8f0d53824711fcd8"
  fuel-nailgun-agent_sha: "92ebd5ade6fab60897761bfa084aefc320bff246"
  astute_sha: "c7ca63a49216744e0bfdfff5cb527556aad2e2a5"
  fuel-library_sha: "fae42170a54b98d8e8c8db99b0fbb312633c693c"
  fuel-ostf_sha: "214e794835acc7aa0c1c5de936e93696a90bb57a"
  fuel-mirror_sha: "b62f3cce5321fd570c6589bc2684eab994c3f3f2"
  fuelmenu_sha: "85de57080a18fda18e5325f06eaf654b1b931592"
  shotgun_sha: "63645dea384a37dde5c01d4f8905566978e5d906"
  network-checker_sha: "9f0ba4577915ce1e77f5dc9c639a5ef66ca45896"
  fuel-upgrade_sha: "616a7490ec7199f69759e97e42f9b97dfc87e85b"
  fuelmain_sha: "e8e36cff332644576d7853c80b8a53d5b955420a"

3 controllers and 2 mongo were added to the cluster #1.
Default network template from [1] was uploaded:

[root@nailgun ~]# fuel --env 1 network-template --upload --dir /root
500 Server Error: Internal Server Error (u'mongo')

Network verification can't be started:
"Node role 'mongo' is assigned for some nodes in node group 'default', but not found in network template for this node group"

After template changing(adding):
        mongo:
          - common
          - private
          - storage
new template was uploaded:

[root@nailgun ~]# fuel --env 1 network-template --upload --dir /root
Network template /root/network_template_1.yaml has been uploaded.

and network verification was finished successfully:

"Verification succeeded. Your network is configured correctly."

[1] = https://github.com/openstack/fuel-qa/tree/master/fuelweb_test/network_templates