[API] filter multi floating ranges in case of neutron

[Aleksey Kasatkin]

Multiple floating ranges are not supported in manifests nor in UI. But API allows to set it. Nailgun's serializer serializes only first range when several ranges are set. See https://bugs.launchpad.net/fuel/+bug/1490578

So, it's required to filter multiple floating ranges in case of Neutron in API (reject such request or take jut first range fom provided list).

[Ihor Kalnytskyi (ikalnytskyi)]

Should be fixed in validator by rejecting multiple floating ranges for Neutron, but only in case bug #1490578 is moved to 8.0.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/219255

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/219255
Committed: https://git.openstack.org/cgit/stackforge/fuel-web/commit/?id=e2ea8c0d8f2c413b3c281f47eb97f4c3cb3e1011
Submitter: Jenkins
Branch: master

commit e2ea8c0d8f2c413b3c281f47eb97f4c3cb3e1011
Author: Artem Roma <email address hidden>
Date: Tue Sep 1 15:22:50 2015 +0300

    Prohibit setting of multiple floating IP ranges for Neutron

    We should forbid settings of multiple floating IP-address ranges for Neutron
    networks as there's not any support of processing such data via both
    Puppet manifests and UI. Thus, now validation error occurs when user tries
    to submit aforementioned network parameters.

    Change-Id: I9a3f4a1cb0438f276611f7d09e6a8021ffadf299
    Closes-Bug: #1490657

[Alexander Saprykin (cutwater)]

Verified on ISO 288

network_1.yaml

...
  floating_ranges:
  - - 172.16.0.130
    - 172.16.0.140
  - - 172.16.0.141
    - 172.16.0.150
...

[root@fuel ~]# fuel network --env 1 --upload
DEPRECATION WARNING: /etc/fuel/client/config.yaml exists and will be used as the source for settings. This behavior is deprecated. Please specify the path to your custom settings file in the FUELCLIENT_CUSTOM_SETTINGS environment variable.
Error uploading configuration: Setting of multiple floating IP ranges is prohibited