Zed Series Release Notes¶

18.0.0.0b1-201¶

New variables have been added to allow a deployer to enable iPXE support for Ironic Conductor, which uses HTTP rather than TFTP, and can speed up baremetal provisioning considerably. To enable, simply set the ironic_ipxe_enabled override to True.

UEFI boot support has been added. To migrate from Legacy BIOS mode, define boot_mode:uefi as a capability for baremetal nodes that support UEFI. In addition, corresponding flavor(s) will need to be created or modified to include boot_mode:uefi as a capability for scheduling to occur against UEFI nodes.

The os_ironic ansible role can now upload the ironic deploy image to glance. Several new variables are defined as ironic_deploy_image_* which control this. It is possible to disable the upload to glance and also to specify custom locations to stage the images from if required.

The service setup in keystone for ironic will now be executed through delegation to the ironic_service_setup_host which, by default, is localhost (the deploy host). Deployers can opt to rather change this to the utility container by implementing the following override in user_variables.yml.
```
ironic_service_setup_host: "{{ groups['utility_all'][0] }}"
```

Support separate oslo.messaging services for RPC and Notifications to enable operation of separate and different messaging backend servers in ironic.

The variables ironic_inspector_ipa_initrd_name and ironic_inspector_ipa_initrd_name are removed from the os_ironic role and more flexible functionality is now provided with the ironic_deplo_image_* variables. Review any overrides you have for the ironic service and adjust these new variables if necessary.

The pxe_append_params configuration option has been deprecated by Ironic and replaced with kernel_append_params. The corresponding configuration override, ironic_pxe_append_params, has been replaced by ironic_kernel_append_params but will continue to be supported until a future undetermined release.

The variable ironic_requires_pip_packages is no longer required and has therefore been removed.

The rabbitmq server parameters have been replaced by corresponding oslo.messaging RPC and Notify parameters in order to abstract the messaging service from the actual backend server deployment. - ironic_oslomsg_rpc_servers replaces ironic_rabbitmq_servers - ironic_oslomsg_rpc_port replaces ironic_rabbitmq_port - ironic_oslomsg_rpc_use_ssl replaces ironic_rabbitmq_use_ssl - ironic_oslomsg_rpc_userid replaces ironic_rabbitmq_userid - ironic_oslomsg_rpc_vhost replaces ironic_rabbitmq_vhost