Config item 'create_isolated_networks' can't work for some test cases

[Dan Xu]

There is a config item 'create_isolated_networks=False' in Tempest to disable the operations of creating networks for each test case especially for VLAN environment. Then all test cases can use the networks given with 'fixed_network_name'.
However, some test cases still create networks and ignore the 'fixed_network_name'.
For example,
tempest.scenario.test_network_advanced_server_ops.TestNetworkAdvancedServerOps.test_server_connectivity_cold_migration

[Martin Kopec (mkopec)]

Scenario are full tests in a meaning they test several features which should be able to interact together (output of one feature is suitable for another one, etc). The mentioned scenario tests cold migration of a server from the beginning (creating a network, floating ip, server ..) until the end (the server is migrated). Therefore it creates its own network regarding the fixed_network_name. Also in the help of the option is written "... this is the network which will be used for creating servers if tempest does not create a network ..." [1].

Let me know if that makes sense. I'll mark the bug as Incomplete for now.

[1] https://opendev.org/openstack/tempest/src/commit/65bc35d17181fd26afd2949a76909039b93914cb/tempest/config.py#L301-L307

[Launchpad Janitor (janitor)]

[Expired for tempest because there has been no activity for 60 days.]