* Parametrize network settings for undercloud deploy to align with
the undercloud install's undercloud.conf and nova-join's DNS
config steps.
* Move the undercloud nameservers defaults to the extras-common.
* Support extra deploy args for 'openstack undercloud deploy'.
Defaults to the heat-native mode, may be altered to containerized
heat-all agents, and other args like keep-running, if wanted.
* Support custom t-h-t templates for underclouds as well (shares
the custom t-h-t script and vars with the overcloud-prep-config)
* Template prerequisite packages installed by the
undercloud-install.sh script. These should be moved to the
tripleoclient's 'openstack undercloud deploy', eventually.
* Allow requested dev env packages to be updated by the
undercloud-install.sh script (defaults to update nothing,
which is backwards compatible). Note, this has nothing to the
prerequisite packages.
* Document missing variables for the undercloud-deploy role.
* Document hacking dev branches for customized underclouds.
Related-bug: #1691467
Signed-off-by: Bogdan Dobrelya <bdobreli@redhat.com>
Change-Id: Id32f492369dc74428bde8c4120308279cbba53fc
f2114bab76