Source code for ironic.drivers.modules.drac.boot

# Copyright 2019 Red Hat, Inc.
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# Copyright (c) 2019-2021 Dell Inc. or its subsidiaries.
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
# Unless required by applicable law or agreed to in writing, software
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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from oslo_log import log
import sushy

from ironic.common import boot_devices
from ironic.drivers.modules.drac import utils as drac_utils
from ironic.drivers.modules.redfish import boot as redfish_boot
from ironic.drivers.modules.redfish import utils as redfish_utils

LOG = log.getLogger(__name__)

[docs] class DracRedfishVirtualMediaBoot(redfish_boot.RedfishVirtualMediaBoot): """iDRAC Redfish interface for virtual media boot-related actions. Virtual Media allows booting the system from "virtual" CD/DVD drive containing user image that BMC "inserts" into the drive. The CD/DVD images must be in ISO format and (depending on BMC implementation) could be pulled over HTTP, served as iSCSI targets or NFS volumes. The baseline boot workflow is mostly based on the standard Redfish virtual media boot interface, which looks like this: 1. Pull kernel, ramdisk and ESP if UEFI boot is requested (FAT partition image with EFI boot loader) images 2. Create bootable ISO out of images (#1), push it to Glance and pass to the BMC as Swift temporary URL 3. Optionally create floppy image with desired system configuration data, push it to Glance and pass to the BMC as Swift temporary URL 4. Insert CD/DVD and (optionally) floppy images and set proper boot mode For building deploy or rescue ISO, redfish boot interface uses `deploy_kernel`/`deploy_ramdisk` or `rescue_kernel`/`rescue_ramdisk` properties from `[instance_info]` or `[driver_info]`. For building boot (user) ISO, redfish boot interface seeks `kernel_id` and `ramdisk_id` properties in the Glance image metadata found in `[instance_info]image_source` node property. iDRAC virtual media boot interface only differs by the way how it sets the node to boot from a virtual media device - this is done via OEM action call implemented in Dell sushy OEM extension package. """ VIRTUAL_MEDIA_DEVICES = { boot_devices.FLOPPY: sushy.VIRTUAL_MEDIA_FLOPPY, boot_devices.CDROM: sushy.VIRTUAL_MEDIA_CD } def _validate_vendor(self, task, managers): pass # assume people are doing the right thing @classmethod def _set_boot_device(cls, task, device, persistent=False): """Set boot device for a node. Dell iDRAC Redfish implementation does not support setting boot device to virtual media via standard Redfish means. Instead, Dell BMC sets boot device to local physical CD/floppy. However, it is still feasible to boot from a virtual media device by invoking Dell OEM extension. :param task: a TaskManager instance. :param device: the boot device, one of :mod:`ironic.common.boot_devices`. :param persistent: Whether to set next-boot, or make the change permanent. Default: False. :raises: InvalidParameterValue if the validation of the ManagementInterface fails. """ # NOTE(etingof): always treat CD/floppy as virtual if device not in cls.VIRTUAL_MEDIA_DEVICES: LOG.debug( 'Treating boot device %(device)s as a non-virtual ' 'media device for node %(node)s', {'device': device, 'node': task.node.uuid}) super(DracRedfishVirtualMediaBoot, cls)._set_boot_device( task, device, persistent) return device = cls.VIRTUAL_MEDIA_DEVICES[device] system = redfish_utils.get_system(task.node) drac_utils.execute_oem_manager_method( task, 'set virtual boot device', lambda m: m.set_virtual_boot_device( device, persistent=persistent, system=system))