--- upgrade: - | The configuration option ``[glance]glance_host`` is now empty by default. If neither it nor ``[glance]glance_api_servers`` are provided, ironic will now try fetching the Image service endpoint from the service catalog. deprecations: - | The configuration options ``[glance]glance_host``, ``[glance]glance_port`` and ``[glance]glance_protocol`` are deprecated in favor of either using ``[glance]glance_api_servers`` or using the service catalog.