diff options
| -rw-r--r-- | devstack/lib/ironic | 6 | ||||
| -rw-r--r-- | doc/source/install/configure-pxe.rst | 59 | ||||
| -rw-r--r-- | ironic/common/pxe_utils.py | 29 | ||||
| -rw-r--r-- | ironic/conf/pxe.py | 23 | ||||
| -rw-r--r-- | ironic/drivers/modules/deploy_utils.py | 48 | ||||
| -rw-r--r-- | ironic/drivers/modules/pxe_base.py | 5 | ||||
| -rw-r--r-- | ironic/tests/unit/common/test_pxe_utils.py | 26 | ||||
| -rw-r--r-- | ironic/tests/unit/drivers/modules/test_deploy_utils.py | 50 | ||||
| -rw-r--r-- | ironic/tests/unit/drivers/modules/test_ipxe.py | 15 | ||||
| -rw-r--r-- | releasenotes/notes/explicit_ipxe_config_options-d7bf9a743a13f523.yaml | 17 |
10 files changed, 226 insertions, 52 deletions
diff --git a/devstack/lib/ironic b/devstack/lib/ironic index 9a1a5feb9..ae8983772 100644 --- a/devstack/lib/ironic +++ b/devstack/lib/ironic @@ -1727,10 +1727,8 @@ function configure_ironic_conductor { local pxebin pxebin=`basename $IRONIC_PXE_BOOT_IMAGE` uefipxebin=`basename $(get_uefi_ipxe_boot_file)` - iniset $IRONIC_CONF_FILE pxe pxe_config_template '$pybasedir/drivers/modules/ipxe_config.template' - iniset $IRONIC_CONF_FILE pxe pxe_bootfile_name $pxebin - iniset $IRONIC_CONF_FILE pxe uefi_pxe_config_template '$pybasedir/drivers/modules/ipxe_config.template' - iniset $IRONIC_CONF_FILE pxe uefi_pxe_bootfile_name $uefipxebin + iniset $IRONIC_CONF_FILE pxe ipxe_bootfile_name $pxebin + iniset $IRONIC_CONF_FILE pxe uefi_ipxe_bootfile_name $uefipxebin iniset $IRONIC_CONF_FILE deploy http_root $IRONIC_HTTP_DIR iniset $IRONIC_CONF_FILE deploy http_url "http://$([[ $IRONIC_HTTP_SERVER =~ : ]] && echo "[$IRONIC_HTTP_SERVER]" || echo $IRONIC_HTTP_SERVER):$IRONIC_HTTP_PORT" if [[ "$IRONIC_IPXE_USE_SWIFT" == "True" ]]; then diff --git a/doc/source/install/configure-pxe.rst b/doc/source/install/configure-pxe.rst index 8769375f4..d06c1f419 100644 --- a/doc/source/install/configure-pxe.rst +++ b/doc/source/install/configure-pxe.rst @@ -341,41 +341,59 @@ on the Bare Metal service node(s) where ``ironic-conductor`` is running. Ubuntu:: - cp /usr/lib/ipxe/{undionly.kpxe,ipxe.efi} /tftpboot + cp /usr/lib/ipxe/{undionly.kpxe,ipxe.efi,snponly.efi} /tftpboot Fedora/RHEL8/CentOS8:: - cp /usr/share/ipxe/{undionly.kpxe,ipxe.efi} /tftpboot + cp /usr/share/ipxe/{undionly.kpxe,ipxe.efi,snponly.efi} /tftpboot -#. Enable/Configure iPXE in the Bare Metal Service's configuration file - (/etc/ironic/ironic.conf): +#. Enable/Configure iPXE overrides in the Bare Metal Service's configuration + file **if required** (/etc/ironic/ironic.conf): .. code-block:: ini [pxe] - # Enable iPXE boot. (boolean value) - ipxe_enabled=True - # Neutron bootfile DHCP parameter. (string value) - pxe_bootfile_name=undionly.kpxe + ipxe_bootfile_name=undionly.kpxe # Bootfile DHCP parameter for UEFI boot mode. (string value) - uefi_pxe_bootfile_name=ipxe.efi + uefi_ipxe_bootfile_name=ipxe.efi # Template file for PXE configuration. (string value) - pxe_config_template=$pybasedir/drivers/modules/ipxe_config.template + ipxe_config_template=$pybasedir/drivers/modules/ipxe_config.template + + .. note:: + Most UEFI systems have integrated networking which means the + ``[pxe]uefi_ipxe_bootfile_name`` setting should be set to + ``snponly.efi``. + + .. note:: + Setting the iPXE parameters noted in the code block above to no value, + in other words setting a line to something like ``ipxe_bootfile_name=`` + will result in ironic falling back to the default values of the non-iPXE + PXE settings. This is for backwards compatability. + +#. Ensure iPXE is the default PXE, if applicable. - # Template file for PXE configuration for UEFI boot loader. - # (string value) - uefi_pxe_config_template=$pybasedir/drivers/modules/ipxe_config.template + In earlier versions of ironic, a ``[pxe]ipxe_enabled`` setting allowing + operators to declare the behavior of the conductor to exclusively operate + as if only iPXE was to be used. As time moved on, iPXE functionality was + moved to it's own ``ipxe`` boot interface. + + If you want to emulate that same hehavior, set the following in the + configuration file (/etc/ironic/ironic.conf): + + .. code-block:: ini + + [DEFAULT] + default_boot_interface=ipxe + enabled_boot_interfaces=ipxe,pxe .. note:: - The ``[pxe]ipxe_enabled`` option has been deprecated and will be removed - in the T* development cycle. Users should instead consider use of the - ``ipxe`` boot interface. The same default use of iPXE functionality can - be achieved by setting the ``[DEFAULT]default_boot_interface`` option - to ``ipxe``. + The ``[DEFAULT]enabled_boot_interfaces`` setting may be exclusively set + to ``ipxe``, however ironic has multiple interfaces available depending + on the hardware types available for use. #. It is possible to configure the Bare Metal service in such a way that nodes will boot into the deploy image directly from Object Storage. @@ -426,7 +444,6 @@ on the Bare Metal service node(s) where ``ironic-conductor`` is running. sudo service ironic-conductor restart - PXE multi-architecture setup ---------------------------- @@ -482,6 +499,10 @@ nodes will be deployed by 'grubaa64.efi', and ppc64 nodes by 'bootppc64':: commands, you'll need to switch to use ``linux`` and ``initrd`` command instead. +.. note:: + A ``[pxe]ipxe_bootfile_name_by_arch`` setting is available for multi-arch + iPXE based deployment, and defaults to the same behavior as the comperable + ``[pxe]pxe_bootfile_by_arch`` setting for standard PXE. PXE timeouts tuning ------------------- diff --git a/ironic/common/pxe_utils.py b/ironic/common/pxe_utils.py index 6f7a666c7..dccf2f038 100644 --- a/ironic/common/pxe_utils.py +++ b/ironic/common/pxe_utils.py @@ -268,7 +268,10 @@ def create_pxe_config(task, pxe_options, template=None, ipxe_enabled=False): """ LOG.debug("Building PXE config for node %s", task.node.uuid) if template is None: - template = deploy_utils.get_pxe_config_template(task.node) + if ipxe_enabled: + template = deploy_utils.get_ipxe_config_template(task.node) + else: + template = deploy_utils.get_pxe_config_template(task.node) _ensure_config_dirs_exist(task, ipxe_enabled) @@ -386,7 +389,16 @@ def _dhcp_option_file_or_url(task, urlboot=False, ip_version=None): to return options for DHCP. Possible options are 4, and 6. """ - boot_file = deploy_utils.get_pxe_boot_file(task.node) + try: + if task.driver.boot.ipxe_enabled: + boot_file = deploy_utils.get_ipxe_boot_file(task.node) + else: + boot_file = deploy_utils.get_pxe_boot_file(task.node) + except AttributeError: + # Support boot interfaces that lack an explicit ipxe_enabled + # attribute flag. + boot_file = deploy_utils.get_pxe_boot_file(task.node) + # NOTE(TheJulia): There are additional cases as we add new # features, so the logic below is in the form of if/elif/elif if not urlboot: @@ -801,7 +813,10 @@ def build_service_pxe_config(task, instance_image_info, pxe_options = build_pxe_config_options(task, instance_image_info, service=True, ipxe_enabled=ipxe_enabled) - pxe_config_template = deploy_utils.get_pxe_config_template(node) + if ipxe_enabled: + pxe_config_template = deploy_utils.get_ipxe_config_template(node) + else: + pxe_config_template = deploy_utils.get_pxe_config_template(node) create_pxe_config(task, pxe_options, pxe_config_template, ipxe_enabled=ipxe_enabled) iwdi = node.driver_internal_info.get('is_whole_disk_image') @@ -939,8 +954,12 @@ def prepare_instance_pxe_config(task, image_info, pxe_options = build_pxe_config_options( task, image_info, service=ramdisk_boot, ipxe_enabled=ipxe_enabled) - pxe_config_template = ( - deploy_utils.get_pxe_config_template(node)) + if ipxe_enabled: + pxe_config_template = ( + deploy_utils.get_ipxe_config_template(node)) + else: + pxe_config_template = ( + deploy_utils.get_pxe_config_template(node)) create_pxe_config( task, pxe_options, pxe_config_template, ipxe_enabled=ipxe_enabled) diff --git a/ironic/conf/pxe.py b/ironic/conf/pxe.py index a54beefa6..16315c88c 100644 --- a/ironic/conf/pxe.py +++ b/ironic/conf/pxe.py @@ -51,13 +51,20 @@ opts = [ default=os.path.join( '$pybasedir', 'drivers/modules/pxe_config.template'), help=_('On ironic-conductor node, template file for PXE ' - 'configuration.')), + 'loader configuration.')), + cfg.StrOpt('ipxe_config_template', + default=os.path.join( + '$pybasedir', 'drivers/modules/ipxe_config.template'), + mutable=True, + help=_('On ironic-conductor node, template file for iPXE ' + 'operations.')), cfg.StrOpt('uefi_pxe_config_template', default=os.path.join( '$pybasedir', 'drivers/modules/pxe_grub_config.template'), help=_('On ironic-conductor node, template file for PXE ' - 'configuration for UEFI boot loader.')), + 'configuration for UEFI boot loader. Generally this ' + 'is used for GRUB specific templates.')), cfg.DictOpt('pxe_config_template_by_arch', default={}, help=_('On ironic-conductor node, template file for PXE ' @@ -102,10 +109,22 @@ opts = [ cfg.StrOpt('uefi_pxe_bootfile_name', default='bootx64.efi', help=_('Bootfile DHCP parameter for UEFI boot mode.')), + cfg.StrOpt('ipxe_bootfile_name', + default='undionly.kpxe', + help=_('Bootfile DHCP parameter.')), + cfg.StrOpt('uefi_ipxe_bootfile_name', + default='ipxe.efi', + help=_('Bootfile DHCP parameter for UEFI boot mode. If you ' + 'experience problems with booting using it, try ' + 'snponly.efi.')), cfg.DictOpt('pxe_bootfile_name_by_arch', default={}, help=_('Bootfile DHCP parameter per node architecture. ' 'For example: aarch64:grubaa64.efi')), + cfg.DictOpt('ipxe_bootfile_name_by_arch', + default={}, + help=_('Bootfile DHCP parameter per node architecture. ' + 'For example: aarch64:ipxe_aa64.efi')), cfg.StrOpt('ipxe_boot_script', default=os.path.join( '$pybasedir', 'drivers/modules/boot.ipxe'), diff --git a/ironic/drivers/modules/deploy_utils.py b/ironic/drivers/modules/deploy_utils.py index 028032cbc..8a1c741ea 100644 --- a/ironic/drivers/modules/deploy_utils.py +++ b/ironic/drivers/modules/deploy_utils.py @@ -383,6 +383,54 @@ def get_pxe_boot_file(node): return boot_file +def get_ipxe_boot_file(node): + """Return the iPXE boot file name requested for deploy. + + This method returns iPXE boot file name to be used for deploy. + Architecture specific boot file is searched first. BIOS/UEFI + boot file is used if no valid architecture specific file found. + + If no valid value is found, the default reverts to the + ``get_pxe_boot_file`` method and thus the + ``[pxe]pxe_bootfile_name`` and ``[pxe]uefi_ipxe_bootfile_name`` + settings. + + :param node: A single Node. + :returns: The iPXE boot file name. + """ + cpu_arch = node.properties.get('cpu_arch') + boot_file = CONF.pxe.ipxe_bootfile_name_by_arch.get(cpu_arch) + if boot_file is None: + if boot_mode_utils.get_boot_mode(node) == 'uefi': + boot_file = CONF.pxe.uefi_ipxe_bootfile_name + else: + boot_file = CONF.pxe.ipxe_bootfile_name + + if boot_file is None: + boot_file = get_pxe_boot_file(node) + + return boot_file + + +def get_ipxe_config_template(node): + """Return the iPXE config template file name requested of deploy. + + This method returns the iPXE configuration template file. + + :param node: A single Node. + :returns: The iPXE config template file name. + """ + # NOTE(TheJulia): iPXE configuration files don't change based upon the + # architecture and we're not trying to support multiple different boot + # loaders by architecture as they are all consistent. Where as PXE + # could need to be grub for one arch, PXELINUX for another. + configured_template = CONF.pxe.ipxe_config_template + override_template = node.driver_info.get('pxe_template') + if override_template: + configured_template = override_template + return configured_template or get_pxe_config_template(node) + + def get_pxe_config_template(node): """Return the PXE config template file name requested for deploy. diff --git a/ironic/drivers/modules/pxe_base.py b/ironic/drivers/modules/pxe_base.py index a30d69233..a26c9eaf5 100644 --- a/ironic/drivers/modules/pxe_base.py +++ b/ironic/drivers/modules/pxe_base.py @@ -201,7 +201,10 @@ class PXEBaseMixin(object): if ramdisk_params.get("ipa-api-url"): pxe_options["ipa-api-url"] = ramdisk_params["ipa-api-url"] - pxe_config_template = deploy_utils.get_pxe_config_template(node) + if self.ipxe_enabled: + pxe_config_template = deploy_utils.get_ipxe_config_template(node) + else: + pxe_config_template = deploy_utils.get_pxe_config_template(node) pxe_utils.create_pxe_config(task, pxe_options, pxe_config_template, diff --git a/ironic/tests/unit/common/test_pxe_utils.py b/ironic/tests/unit/common/test_pxe_utils.py index 25847a325..3c1f745dc 100644 --- a/ironic/tests/unit/common/test_pxe_utils.py +++ b/ironic/tests/unit/common/test_pxe_utils.py @@ -664,7 +664,7 @@ class TestPXEUtils(db_base.DbTestCase): 'config'), pxe_utils.get_pxe_config_file_path(self.node.uuid)) - def _dhcp_options_for_instance(self, ip_version=4): + def _dhcp_options_for_instance(self, ip_version=4, ipxe=False): self.config(ip_version=ip_version, group='pxe') if ip_version == 4: self.config(tftp_server='192.0.2.1', group='pxe') @@ -672,6 +672,10 @@ class TestPXEUtils(db_base.DbTestCase): self.config(tftp_server='ff80::1', group='pxe') self.config(pxe_bootfile_name='fake-bootfile', group='pxe') self.config(tftp_root='/tftp-path/', group='pxe') + if ipxe: + bootfile = 'fake-bootfile-ipxe' + else: + bootfile = 'fake-bootfile' if ip_version == 6: # NOTE(TheJulia): DHCPv6 RFCs seem to indicate that the prior @@ -679,11 +683,11 @@ class TestPXEUtils(db_base.DbTestCase): # by vendors. The apparent proper option is to return a # URL in the field https://tools.ietf.org/html/rfc5970#section-3 expected_info = [{'opt_name': '59', - 'opt_value': 'tftp://[ff80::1]/fake-bootfile', + 'opt_value': 'tftp://[ff80::1]/%s' % bootfile, 'ip_version': ip_version}] elif ip_version == 4: expected_info = [{'opt_name': '67', - 'opt_value': 'fake-bootfile', + 'opt_value': bootfile, 'ip_version': ip_version}, {'opt_name': '210', 'opt_value': '/tftp-path/', @@ -1380,7 +1384,7 @@ class iPXEBuildConfigOptionsTestCase(db_base.DbTestCase): # URL in the field https://tools.ietf.org/html/rfc5970#section-3 expected_boot_script_url = 'http://[ff80::1]:1234/boot.ipxe' expected_info = [{'opt_name': '!175,59', - 'opt_value': 'tftp://[ff80::1]/fake-bootfile', + 'opt_value': 'tftp://[ff80::1]/%s' % boot_file, 'ip_version': ip_version}, {'opt_name': '59', 'opt_value': expected_boot_script_url, @@ -1412,7 +1416,7 @@ class iPXEBuildConfigOptionsTestCase(db_base.DbTestCase): if ip_version == 6: # Boot URL variable set from prior test of isc parameters. expected_info = [{'opt_name': 'tag:!ipxe6,59', - 'opt_value': 'tftp://[ff80::1]/fake-bootfile', + 'opt_value': 'tftp://[ff80::1]/%s' % boot_file, 'ip_version': ip_version}, {'opt_name': 'tag:ipxe6,59', 'opt_value': expected_boot_script_url, @@ -1441,23 +1445,23 @@ class iPXEBuildConfigOptionsTestCase(db_base.DbTestCase): def test_dhcp_options_for_instance_ipxe_bios(self): self.config(ip_version=4, group='pxe') - boot_file = 'fake-bootfile-bios' - self.config(pxe_bootfile_name=boot_file, group='pxe') + boot_file = 'fake-bootfile-bios-ipxe' + self.config(ipxe_bootfile_name=boot_file, group='pxe') with task_manager.acquire(self.context, self.node.uuid) as task: self._dhcp_options_for_instance_ipxe(task, boot_file) def test_dhcp_options_for_instance_ipxe_uefi(self): self.config(ip_version=4, group='pxe') - boot_file = 'fake-bootfile-uefi' - self.config(uefi_pxe_bootfile_name=boot_file, group='pxe') + boot_file = 'fake-bootfile-uefi-ipxe' + self.config(uefi_ipxe_bootfile_name=boot_file, group='pxe') with task_manager.acquire(self.context, self.node.uuid) as task: task.node.properties['capabilities'] = 'boot_mode:uefi' self._dhcp_options_for_instance_ipxe(task, boot_file) def test_dhcp_options_for_ipxe_ipv6(self): self.config(ip_version=6, group='pxe') - boot_file = 'fake-bootfile' - self.config(pxe_bootfile_name=boot_file, group='pxe') + boot_file = 'fake-bootfile-ipxe' + self.config(ipxe_bootfile_name=boot_file, group='pxe') with task_manager.acquire(self.context, self.node.uuid) as task: self._dhcp_options_for_instance_ipxe(task, boot_file, ip_version=6) diff --git a/ironic/tests/unit/drivers/modules/test_deploy_utils.py b/ironic/tests/unit/drivers/modules/test_deploy_utils.py index 5344d3ed4..1e6c3b42b 100644 --- a/ironic/tests/unit/drivers/modules/test_deploy_utils.py +++ b/ironic/tests/unit/drivers/modules/test_deploy_utils.py @@ -582,6 +582,34 @@ class GetPxeBootConfigTestCase(db_base.DbTestCase): result = utils.get_pxe_boot_file(self.node) self.assertEqual('bios-bootfile', result) + def test_get_ipxe_boot_file(self): + self.config(ipxe_bootfile_name='meow', group='pxe') + result = utils.get_ipxe_boot_file(self.node) + self.assertEqual('meow', result) + + def test_get_ipxe_boot_file_uefi(self): + self.config(uefi_ipxe_bootfile_name='ipxe-uefi-bootfile', group='pxe') + properties = {'capabilities': 'boot_mode:uefi'} + self.node.properties = properties + result = utils.get_ipxe_boot_file(self.node) + self.assertEqual('ipxe-uefi-bootfile', result) + + def test_get_ipxe_boot_file_other_arch(self): + arch_names = {'aarch64': 'ipxe-aa64.efi', + 'x86_64': 'ipxe.kpxe'} + self.config(ipxe_bootfile_name_by_arch=arch_names, group='pxe') + properties = {'cpu_arch': 'aarch64', 'capabilities': 'boot_mode:uefi'} + self.node.properties = properties + result = utils.get_ipxe_boot_file(self.node) + self.assertEqual('ipxe-aa64.efi', result) + + def test_get_ipxe_boot_file_fallback(self): + self.config(ipxe_bootfile_name=None, group='pxe') + self.config(uefi_ipxe_bootfile_name=None, group='pxe') + self.config(pxe_bootfile_name='lolcat', group='pxe') + result = utils.get_ipxe_boot_file(self.node) + self.assertEqual('lolcat', result) + def test_get_pxe_config_template_emtpy_property(self): self.node.properties = {} self.config(pxe_config_template_by_arch=self.template_by_arch, @@ -597,6 +625,28 @@ class GetPxeBootConfigTestCase(db_base.DbTestCase): result = utils.get_pxe_config_template(node) self.assertEqual('fake-template', result) + def test_get_ipxe_config_template(self): + node = obj_utils.create_test_node( + self.context, driver='fake-hardware') + self.assertIn('ipxe_config.template', + utils.get_ipxe_config_template(node)) + + def test_get_ipxe_config_template_none(self): + self.config(ipxe_config_template=None, group='pxe') + self.config(pxe_config_template='magical_bootloader', + group='pxe') + node = obj_utils.create_test_node( + self.context, driver='fake-hardware') + self.assertEqual('magical_bootloader', + utils.get_ipxe_config_template(node)) + + def test_get_ipxe_config_template_override_pxe_fallback(self): + node = obj_utils.create_test_node( + self.context, driver='fake-hardware', + driver_info={'pxe_template': 'magical'}) + self.assertEqual('magical', + utils.get_ipxe_config_template(node)) + @mock.patch('time.sleep', lambda sec: None) class OtherFunctionTestCase(db_base.DbTestCase): diff --git a/ironic/tests/unit/drivers/modules/test_ipxe.py b/ironic/tests/unit/drivers/modules/test_ipxe.py index cbec1bb0d..c53facf22 100644 --- a/ironic/tests/unit/drivers/modules/test_ipxe.py +++ b/ironic/tests/unit/drivers/modules/test_ipxe.py @@ -310,14 +310,9 @@ class iPXEBootTestCase(db_base.DbTestCase): mock_cache_r_k.assert_called_once_with( task, {'rescue_kernel': 'a', 'rescue_ramdisk': 'r'}, ipxe_enabled=True) - if uefi: - mock_pxe_config.assert_called_once_with( - task, {}, CONF.pxe.uefi_pxe_config_template, - ipxe_enabled=True) - else: - mock_pxe_config.assert_called_once_with( - task, {}, CONF.pxe.pxe_config_template, - ipxe_enabled=True) + mock_pxe_config.assert_called_once_with( + task, {}, CONF.pxe.ipxe_config_template, + ipxe_enabled=True) def test_prepare_ramdisk(self): self.node.provision_state = states.DEPLOYING @@ -700,7 +695,7 @@ class iPXEBootTestCase(db_base.DbTestCase): ipxe_enabled=True) provider_mock.update_dhcp.assert_called_once_with(task, dhcp_opts) create_pxe_config_mock.assert_called_once_with( - task, mock.ANY, CONF.pxe.pxe_config_template, + task, mock.ANY, CONF.pxe.ipxe_config_template, ipxe_enabled=True) switch_pxe_config_mock.assert_called_once_with( pxe_config_path, "30212642-09d3-467f-8e09-21685826ab50", @@ -817,7 +812,7 @@ class iPXEBootTestCase(db_base.DbTestCase): self.assertFalse(cache_mock.called) provider_mock.update_dhcp.assert_called_once_with(task, dhcp_opts) create_pxe_config_mock.assert_called_once_with( - task, mock.ANY, CONF.pxe.pxe_config_template, + task, mock.ANY, CONF.pxe.ipxe_config_template, ipxe_enabled=True) switch_pxe_config_mock.assert_called_once_with( pxe_config_path, None, boot_modes.LEGACY_BIOS, False, diff --git a/releasenotes/notes/explicit_ipxe_config_options-d7bf9a743a13f523.yaml b/releasenotes/notes/explicit_ipxe_config_options-d7bf9a743a13f523.yaml new file mode 100644 index 000000000..acf5daccf --- /dev/null +++ b/releasenotes/notes/explicit_ipxe_config_options-d7bf9a743a13f523.yaml @@ -0,0 +1,17 @@ +--- +upgrade: + - | + Operators upgrading from earlier versions using PXE should explicitly set + ``[pxe]ipxe_bootfile_name``, ``[pxe]uefi_ipxe_bootfile_name``, and + possibly ``[pxe]ipxe_bootfile_name_by_arch`` settings, as well as a + iPXE specific ``[pxe]ipxe_config_template`` override, if required. + + Setting the ``[pxe]ipxe_config_template`` to no value will result in the + ``[pxe]pxe_config_template`` being used. The default value points to the + supplied standard iPXE template, so only highly customized operators may + have to tune this setting. +fixes: + - | + Addresses the lack of an ability to explicitly set different bootloaders + for ``iPXE`` and ``PXE`` based boot operations via their respective + ``ipxe`` and ``pxe`` boot interfaces. |