303 lines
13 KiB
Python
303 lines
13 KiB
Python
# Copyright 2013 Hewlett-Packard Development Company, L.P.
|
|
#
|
|
# 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
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations
|
|
# under the License.
|
|
"""
|
|
iPXE Boot Interface
|
|
"""
|
|
|
|
from ironic_lib import metrics_utils
|
|
from oslo_log import log as logging
|
|
from oslo_utils import strutils
|
|
|
|
from ironic.common import boot_devices
|
|
from ironic.common import dhcp_factory
|
|
from ironic.common import exception
|
|
from ironic.common.glance_service import service_utils
|
|
from ironic.common.i18n import _
|
|
from ironic.common import pxe_utils
|
|
from ironic.common import states
|
|
from ironic.conductor import utils as manager_utils
|
|
from ironic.conf import CONF
|
|
from ironic.drivers import base
|
|
from ironic.drivers.modules import boot_mode_utils
|
|
from ironic.drivers.modules import deploy_utils
|
|
from ironic.drivers.modules import pxe
|
|
from ironic.drivers.modules import pxe_base
|
|
from ironic.drivers import utils as driver_utils
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
METRICS = metrics_utils.get_metrics_logger(__name__)
|
|
|
|
COMMON_PROPERTIES = pxe_base.COMMON_PROPERTIES
|
|
|
|
|
|
class iPXEBoot(pxe_base.PXEBaseMixin, base.BootInterface):
|
|
|
|
capabilities = ['iscsi_volume_boot', 'ramdisk_boot', 'ipxe_boot']
|
|
|
|
def __init__(self):
|
|
pxe_utils.create_ipxe_boot_script()
|
|
|
|
@METRICS.timer('iPXEBoot.validate')
|
|
def validate(self, task):
|
|
"""Validate the PXE-specific info for booting deploy/instance images.
|
|
|
|
This method validates the PXE-specific info for booting the
|
|
ramdisk and instance on the node. If invalid, raises an
|
|
exception; otherwise returns None.
|
|
|
|
:param task: a task from TaskManager.
|
|
:returns: None
|
|
:raises: InvalidParameterValue, if some parameters are invalid.
|
|
:raises: MissingParameterValue, if some required parameters are
|
|
missing.
|
|
"""
|
|
node = task.node
|
|
|
|
if not driver_utils.get_node_mac_addresses(task):
|
|
raise exception.MissingParameterValue(
|
|
_("Node %s does not have any port associated with it.")
|
|
% node.uuid)
|
|
|
|
if not CONF.deploy.http_url or not CONF.deploy.http_root:
|
|
raise exception.MissingParameterValue(_(
|
|
"iPXE boot is enabled but no HTTP URL or HTTP "
|
|
"root was specified."))
|
|
|
|
# Check the trusted_boot capabilities value.
|
|
deploy_utils.validate_capabilities(node)
|
|
if deploy_utils.is_trusted_boot_requested(node):
|
|
# Check if 'boot_option' and boot mode is compatible with
|
|
# trusted boot.
|
|
# NOTE(TheJulia): So in theory (huge theory here, not put to
|
|
# practice or tested), that one can define the kernel as tboot
|
|
# and define the actual kernel and ramdisk as appended data.
|
|
# Similar to how one can iPXE load the XEN hypervisor.
|
|
# tboot mailing list seem to indicate pxe/ipxe support, or
|
|
# more specifically avoiding breaking the scenarios of use,
|
|
# but there is also no definitive documentation on the subject.
|
|
LOG.warning('Trusted boot has been requested for %(node)s in '
|
|
'concert with iPXE. This is not a supported '
|
|
'configuration for an ironic deployment.',
|
|
{'node': node.uuid})
|
|
pxe.validate_boot_parameters_for_trusted_boot(node)
|
|
|
|
pxe_utils.parse_driver_info(node)
|
|
# NOTE(TheJulia): If we're not writing an image, we can skip
|
|
# the remainder of this method.
|
|
if (not task.driver.storage.should_write_image(task)):
|
|
return
|
|
|
|
d_info = deploy_utils.get_image_instance_info(node)
|
|
if (node.driver_internal_info.get('is_whole_disk_image')
|
|
or deploy_utils.get_boot_option(node) == 'local'):
|
|
props = []
|
|
elif service_utils.is_glance_image(d_info['image_source']):
|
|
props = ['kernel_id', 'ramdisk_id']
|
|
else:
|
|
props = ['kernel', 'ramdisk']
|
|
deploy_utils.validate_image_properties(task.context, d_info, props)
|
|
|
|
@METRICS.timer('iPXEBoot.prepare_ramdisk')
|
|
def prepare_ramdisk(self, task, ramdisk_params):
|
|
"""Prepares the boot of Ironic ramdisk using PXE.
|
|
|
|
This method prepares the boot of the deploy or rescue kernel/ramdisk
|
|
after reading relevant information from the node's driver_info and
|
|
instance_info.
|
|
|
|
:param task: a task from TaskManager.
|
|
:param ramdisk_params: the parameters to be passed to the ramdisk.
|
|
pxe driver passes these parameters as kernel command-line
|
|
arguments.
|
|
:param mode: Label indicating a deploy or rescue operation
|
|
being carried out on the node. Supported values are
|
|
'deploy' and 'rescue'. Defaults to 'deploy', indicating
|
|
deploy operation is being carried out.
|
|
:returns: None
|
|
:raises: MissingParameterValue, if some information is missing in
|
|
node's driver_info or instance_info.
|
|
:raises: InvalidParameterValue, if some information provided is
|
|
invalid.
|
|
:raises: IronicException, if some power or set boot boot device
|
|
operation failed on the node.
|
|
"""
|
|
node = task.node
|
|
mode = deploy_utils.rescue_or_deploy_mode(node)
|
|
|
|
# NOTE(mjturek): At this point, the ipxe boot script should
|
|
# already exist as it is created at startup time. However, we
|
|
# call the boot script create method here to assert its
|
|
# existence and handle the unlikely case that it wasn't created
|
|
# or was deleted.
|
|
pxe_utils.create_ipxe_boot_script()
|
|
|
|
dhcp_opts = pxe_utils.dhcp_options_for_instance(
|
|
task, ipxe_enabled=True)
|
|
provider = dhcp_factory.DHCPFactory()
|
|
provider.update_dhcp(task, dhcp_opts)
|
|
|
|
pxe_info = pxe_utils.get_image_info(node, mode=mode,
|
|
ipxe_enabled=True)
|
|
|
|
# NODE: Try to validate and fetch instance images only
|
|
# if we are in DEPLOYING state.
|
|
if node.provision_state == states.DEPLOYING:
|
|
pxe_info.update(
|
|
pxe_utils.get_instance_image_info(task, ipxe_enabled=True))
|
|
boot_mode_utils.sync_boot_mode(task)
|
|
|
|
pxe_options = pxe_utils.build_pxe_config_options(task, pxe_info,
|
|
ipxe_enabled=True)
|
|
pxe_options.update(ramdisk_params)
|
|
|
|
pxe_config_template = deploy_utils.get_pxe_config_template(node)
|
|
|
|
pxe_utils.create_pxe_config(task, pxe_options,
|
|
pxe_config_template,
|
|
ipxe_enabled=True)
|
|
persistent = False
|
|
value = node.driver_info.get('force_persistent_boot_device',
|
|
'Default')
|
|
if value in {'Always', 'Default', 'Never'}:
|
|
if value == 'Always':
|
|
persistent = True
|
|
else:
|
|
persistent = strutils.bool_from_string(value, False)
|
|
manager_utils.node_set_boot_device(task, boot_devices.PXE,
|
|
persistent=persistent)
|
|
|
|
if CONF.pxe.ipxe_use_swift:
|
|
kernel_label = '%s_kernel' % mode
|
|
ramdisk_label = '%s_ramdisk' % mode
|
|
pxe_info.pop(kernel_label, None)
|
|
pxe_info.pop(ramdisk_label, None)
|
|
|
|
if pxe_info:
|
|
pxe_utils.cache_ramdisk_kernel(task, pxe_info, ipxe_enabled=True)
|
|
|
|
@METRICS.timer('iPXEBoot.prepare_instance')
|
|
def prepare_instance(self, task):
|
|
"""Prepares the boot of instance.
|
|
|
|
This method prepares the boot of the instance after reading
|
|
relevant information from the node's instance_info. In case of netboot,
|
|
it updates the dhcp entries and switches the PXE config. In case of
|
|
localboot, it cleans up the PXE config.
|
|
|
|
:param task: a task from TaskManager.
|
|
:returns: None
|
|
"""
|
|
boot_mode_utils.sync_boot_mode(task)
|
|
|
|
node = task.node
|
|
boot_option = deploy_utils.get_boot_option(node)
|
|
boot_device = None
|
|
instance_image_info = {}
|
|
|
|
if boot_option == "ramdisk":
|
|
instance_image_info = pxe_utils.get_instance_image_info(
|
|
task, ipxe_enabled=True)
|
|
pxe_utils.cache_ramdisk_kernel(task, instance_image_info,
|
|
ipxe_enabled=True)
|
|
|
|
if deploy_utils.is_iscsi_boot(task) or boot_option == "ramdisk":
|
|
pxe_utils.prepare_instance_pxe_config(
|
|
task, instance_image_info,
|
|
iscsi_boot=deploy_utils.is_iscsi_boot(task),
|
|
ramdisk_boot=(boot_option == "ramdisk"),
|
|
ipxe_enabled=True)
|
|
boot_device = boot_devices.PXE
|
|
|
|
elif boot_option != "local":
|
|
if task.driver.storage.should_write_image(task):
|
|
# Make sure that the instance kernel/ramdisk is cached.
|
|
# This is for the takeover scenario for active nodes.
|
|
instance_image_info = pxe_utils.get_instance_image_info(
|
|
task, ipxe_enabled=True)
|
|
pxe_utils.cache_ramdisk_kernel(task, instance_image_info,
|
|
ipxe_enabled=True)
|
|
|
|
# If it's going to PXE boot we need to update the DHCP server
|
|
dhcp_opts = pxe_utils.dhcp_options_for_instance(task,
|
|
ipxe_enabled=True)
|
|
provider = dhcp_factory.DHCPFactory()
|
|
provider.update_dhcp(task, dhcp_opts)
|
|
|
|
iwdi = task.node.driver_internal_info.get('is_whole_disk_image')
|
|
try:
|
|
root_uuid_or_disk_id = task.node.driver_internal_info[
|
|
'root_uuid_or_disk_id'
|
|
]
|
|
except KeyError:
|
|
if not task.driver.storage.should_write_image(task):
|
|
pass
|
|
elif not iwdi:
|
|
LOG.warning("The UUID for the root partition can't be "
|
|
"found, unable to switch the pxe config from "
|
|
"deployment mode to service (boot) mode for "
|
|
"node %(node)s", {"node": task.node.uuid})
|
|
else:
|
|
LOG.warning("The disk id for the whole disk image can't "
|
|
"be found, unable to switch the pxe config "
|
|
"from deployment mode to service (boot) mode "
|
|
"for node %(node)s. Booting the instance "
|
|
"from disk.", {"node": task.node.uuid})
|
|
pxe_utils.clean_up_pxe_config(task, ipxe_enabled=True)
|
|
boot_device = boot_devices.DISK
|
|
else:
|
|
pxe_utils.build_service_pxe_config(task, instance_image_info,
|
|
root_uuid_or_disk_id,
|
|
ipxe_enabled=True)
|
|
boot_device = boot_devices.PXE
|
|
else:
|
|
# If it's going to boot from the local disk, we don't need
|
|
# PXE config files. They still need to be generated as part
|
|
# of the prepare() because the deployment does PXE boot the
|
|
# deploy ramdisk
|
|
pxe_utils.clean_up_pxe_config(task, ipxe_enabled=True)
|
|
boot_device = boot_devices.DISK
|
|
|
|
# NOTE(pas-ha) do not re-set boot device on ACTIVE nodes
|
|
# during takeover
|
|
if boot_device and task.node.provision_state != states.ACTIVE:
|
|
persistent = True
|
|
if node.driver_info.get('force_persistent_boot_device',
|
|
'Default') == 'Never':
|
|
persistent = False
|
|
manager_utils.node_set_boot_device(task, boot_device,
|
|
persistent=persistent)
|
|
|
|
@METRICS.timer('iPXEBoot.clean_up_instance')
|
|
def clean_up_instance(self, task):
|
|
"""Cleans up the boot of instance.
|
|
|
|
This method cleans up the environment that was setup for booting
|
|
the instance. It unlinks the instance kernel/ramdisk in node's
|
|
directory in tftproot and removes the PXE config.
|
|
|
|
:param task: a task from TaskManager.
|
|
:returns: None
|
|
"""
|
|
node = task.node
|
|
|
|
try:
|
|
images_info = pxe_utils.get_instance_image_info(task,
|
|
ipxe_enabled=True)
|
|
except exception.MissingParameterValue as e:
|
|
LOG.warning('Could not get instance image info '
|
|
'to clean up images for node %(node)s: %(err)s',
|
|
{'node': node.uuid, 'err': e})
|
|
else:
|
|
pxe_utils.clean_up_pxe_env(task, images_info)
|