There are usecases, where deployer might want to have a hook after openstack_hosts are configured in terms of networks, mounts and etc, but before LXC containers are spawned. Change-Id: Iac71e4b29af1c8bfe9d350b3b117cf7de7de6451 Signed-off-by: Dmitriy Rabotyagov <dmitriy.rabotyagov@cleura.com>