[system tests][devops] Setup master node failed with Network is already in use by interface dobr321

[Tatyanka]

http://jenkins-product.srt.mirantis.net:8080/job/6.1.system_test.centos.ceph_multinode_compact_neutron.rollback/22/testReport/(root)/setup_master/setup_master/?

internal error: Network is already in use by interface dobr321
Stacktrace

Traceback (most recent call last):
  File "/usr/lib/python2.7/unittest/case.py", line 331, in run
    testMethod()
  File "/usr/lib/python2.7/unittest/case.py", line 1043, in runTest
    self._testFunc()
  File "/home/jenkins/venv-nailgun-tests/local/lib/python2.7/site-packages/proboscis/case.py", line 296, in testng_method_mistake_capture_func
    compatability.capture_type_error(s_func)
  File "/home/jenkins/venv-nailgun-tests/local/lib/python2.7/site-packages/proboscis/compatability/exceptions_2_6.py", line 27, in capture_type_error
    func()
  File "/home/jenkins/venv-nailgun-tests/local/lib/python2.7/site-packages/proboscis/case.py", line 350, in func
    func(test_case.state.get_state())
  File "/home/jenkins/workspace/6.1.system_test.centos.ceph_multinode_compact_neutron.rollback/BASE/fuelweb_test/tests/base_test_case.py", line 57, in setup_master
    self.env.setup_environment()
  File "/home/jenkins/workspace/6.1.system_test.centos.ceph_multinode_compact_neutron.rollback/BASE/fuelweb_test/models/environment.py", line 488, in setup_environment
    self.get_virtual_environment().start(self.nodes().admins)
  File "/home/jenkins/venv-nailgun-tests/local/lib/python2.7/site-packages/devops/models.py", line 107, in start
    network.start()
  File "/home/jenkins/venv-nailgun-tests/local/lib/python2.7/site-packages/devops/models.py", line 241, in start
    self.create(verbose=False)
  File "/home/jenkins/venv-nailgun-tests/local/lib/python2.7/site-packages/devops/models.py", line 245, in create
    self.driver.network_create(self)
  File "/home/jenkins/venv-nailgun-tests/local/lib/python2.7/site-packages/devops/helpers/retry.py", line 27, in wrapper
    return func(*args, **kwargs)
  File "/home/jenkins/venv-nailgun-tests/local/lib/python2.7/site-packages/devops/driver/libvirt/libvirt_driver.py", line 199, in network_create
    self.conn.networkLookupByUUIDString(network.uuid).create()
  File "/home/jenkins/venv-nailgun-tests/local/lib/python2.7/site-packages/libvirt.py", line 2615, in create
    if ret == -1: raise libvirtError ('virNetworkCreate() failed', net=self)
libvirtError: internal error: Network is already in use by interface dobr32

[Nastya Urlapova (aurlapova)]

@Devops team, please check cleanup script on srv35-bud.bud.mirantis.net .