[epic] Support causing openvswitch failures to test failure conditions
|Target version:||QA - future|
Tests like HA, HPC, and Multipath require the ability to test that they work when the network conditions are less than ideal
In a simple 2 node cluster for example, this would mean disconnecting one node from it's ports
only openQA knows about which tests are running in parralel, os-autoinst knows about which ports are connected to which vswitch
This issue requires a lockapi extensions so that a test can instruct openQA/os-autoinst to disconnect a test VM from it's network, and then reconnect it.