Hello,
There is an issue with get_tenant_network function in the Patrole tests. Zuul failed on patch set [0] due to 'Multiple possible networks found, use a Network ID to be more specific’[1]. Tempest logs[2] contain an message: '(ServerActionsRbacTest:setUpClass) Found network None available for tenant’.
Who knows why this can happen? I have an idea, that this could happen in case of a parallel test running and one test rewrote the roles and another test didn’t find a tenant's network at same time because of the wrong roles.