Exception on data import in racks

[Igor Shishkin]

2016-06-23 11:50:57,338 ERROR importers.tasks Task importers.tasks.bind_dcim_servers_to_inventory failed: .
Traceback (most recent call last):
  File "/usr/share/racks/webapp/importers/tasks.py", line 26, in task
    func(*args, **kwargs)
  File "/usr/share/racks/webapp/importers/tasks.py", line 69, in bind_dcim_servers_to_inventory
    importers.switches.bind_dcim_servers_to_inventory()
  File "/usr/share/racks/webapp/importers/switches.py", line 218, in bind_dcim_servers_to_inventory
    assert len(ports_with_address_and_server) == 1
AssertionError

[Fuel Devops McRobotson (fuel-devops-robot)]

Fix proposed to branch: master
Change author: Alexander Lomski <email address hidden>
Review: https://review.fuel-infra.org/22527

[Fuel Devops McRobotson (fuel-devops-robot)]

Reviewed: https://review.fuel-infra.org/22527
Submitter: Alexander Charykov <email address hidden>
Branch: master

Commit: 70c15a91be9523c5412e2ab3a40d7a97490006e1
Author: Alexander Lomski <email address hidden>
Date: Fri Jun 24 10:13:12 2016

Bugfix for DCIM import

DCIM import modifications introduced a new bug in DCIM-to-inventory
binding process, which previously assumed that any switch port with
a non-NULL `dcim_server_id` is connected to a server. Added additional
filter to exclude ports which now have non-NULL `dcim_server_id` but
are actually connected to other device types.

Tests modified accordingly.

Closes-Bug: #1595505
Change-Id: Ifa75e15bf62980ab7400287c48db6cf01921bef9