--- upgrade: - | Support for configuring an NTP daemon on the seed, seed hypervisor and overcloud hosts is no longer present, as appropriate packages are not available for CentOS 8. Instead, Kolla Ansible is configured to deploy the ``chrony`` container on overcloud hosts by default. This may be disabled by setting ``kolla_enable_chrony`` to ``false``. There is no support for running a ``chrony`` container on the seed or seed hypervisor hosts.