This is a follow-up to: https://review.opendev.org/#/c/666897/
and makes sure titles and help information get rendered in
the configuration documentation and configuration samples.
The options for the placement_client group are already changed
and left untouched as a result. The changes to grafana_client
are already done in another patch and also untouched.
Change-Id: Ia33cd4576e4b55e651f3f3779a01f2867126138d
Some configuration options were accepting both IP addresses
and hostnames. Since there was no specific OSLO opt type to
support this, we were using ``StrOpt``. The change [1] that
added support for ``HostAddressOpt`` type was merged in Ocata
and became available for use with oslo version 3.22.
This patch changes the opt type of configuration options to use
this more relevant opt type - HostAddressOpt.
[1] I77bdb64b7e6e56ce761d76696bc4448a9bd325eb
Change-Id: Idec43189ff8edc539027ba0b0369e54ae883cd2b
