Hardware introspection daemon for OpenStack Ironic
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# 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.
"""Standard set of plugins."""
from ironic_lib import utils as il_utils
import netaddr
from oslo_config import cfg
from oslo_utils import netutils
from oslo_utils import units
from ironic_inspector.common.i18n import _
from ironic_inspector.common import ironic as ir_utils
from ironic_inspector.plugins import base
from ironic_inspector import utils
CONF = cfg.CONF
LOG = utils.getProcessingLogger('ironic_inspector.plugins.standard')
class RootDiskSelectionHook(base.ProcessingHook):
"""Smarter root disk selection using Ironic root device hints.
This hook must always go before SchedulerHook, otherwise root_disk field
might not be updated.
"""
def _process_root_device_hints(self, introspection_data, node_info,
inventory):
"""Detect root disk from root device hints and IPA inventory."""
hints = node_info.node().properties.get('root_device')
if not hints:
LOG.debug('Root device hints are not provided',
node_info=node_info, data=introspection_data)
return
try:
device = il_utils.match_root_device_hints(inventory['disks'],
hints)
except (TypeError, ValueError) as e:
raise utils.Error(
_('No disks could be found using the root device hints '
'%(hints)s because they failed to validate. '
'Error: %(error)s') % {'hints': hints, 'error': e},
node_info=node_info, data=introspection_data)
if not device:
raise utils.Error(_('No disks satisfied root device hints'),
node_info=node_info, data=introspection_data)
LOG.debug('Disk %(disk)s of size %(size)s satisfies '
'root device hints',
{'disk': device.get('name'), 'size': device['size']},
node_info=node_info, data=introspection_data)
introspection_data['root_disk'] = device
def before_update(self, introspection_data, node_info, **kwargs):
"""Process root disk information."""
inventory = utils.get_inventory(introspection_data,
node_info=node_info)
self._process_root_device_hints(introspection_data, node_info,
inventory)
root_disk = introspection_data.get('root_disk')
if root_disk:
local_gb = root_disk['size'] // units.Gi
if not local_gb:
LOG.warning('The requested root disk is too small (smaller '
'than 1 GiB) or its size cannot be detected: %s',
root_disk,
node_info=node_info, data=introspection_data)
else:
if CONF.processing.disk_partitioning_spacing:
local_gb -= 1
LOG.info('Root disk %(disk)s, local_gb %(local_gb)s GiB',
{'disk': root_disk, 'local_gb': local_gb},
node_info=node_info, data=introspection_data)
else:
local_gb = 0
LOG.info('No root device found, assuming a diskless node',
node_info=node_info, data=introspection_data)
introspection_data['local_gb'] = local_gb
if (CONF.processing.overwrite_existing or not
node_info.node().properties.get('local_gb')):
node_info.update_properties(local_gb=str(local_gb))
class SchedulerHook(base.ProcessingHook):
"""Nova scheduler required properties."""
KEYS = ('cpus', 'cpu_arch', 'memory_mb')
def before_update(self, introspection_data, node_info, **kwargs):
"""Update node with scheduler properties."""
inventory = utils.get_inventory(introspection_data,
node_info=node_info)
try:
introspection_data['cpus'] = int(inventory['cpu']['count'])
introspection_data['cpu_arch'] = str(
inventory['cpu']['architecture'])
except (KeyError, ValueError, TypeError):
LOG.warning('malformed or missing CPU information: %s',
inventory.get('cpu'))
try:
introspection_data['memory_mb'] = int(
inventory['memory']['physical_mb'])
except (KeyError, ValueError, TypeError):
LOG.warning('malformed or missing memory information: %s; '
'introspection requires physical memory size '
'from dmidecode', inventory.get('memory'))
LOG.info('Discovered data: CPUs: count %(cpus)s, architecture '
'%(cpu_arch)s, memory %(memory_mb)s MiB',
{key: introspection_data.get(key) for key in self.KEYS},
node_info=node_info, data=introspection_data)
overwrite = CONF.processing.overwrite_existing
properties = {key: str(introspection_data[key])
for key in self.KEYS if introspection_data.get(key) and
(overwrite or not node_info.node().properties.get(key))}
if properties:
node_info.update_properties(**properties)
class ValidateInterfacesHook(base.ProcessingHook):
"""Hook to validate network interfaces."""
def __init__(self):
# Some configuration checks
if (CONF.processing.add_ports == 'disabled' and
CONF.processing.keep_ports == 'added'):
msg = _("Configuration error: add_ports set to disabled "
"and keep_ports set to added. Please change keep_ports "
"to all.")
raise utils.Error(msg)
def _get_interfaces(self, data=None):
"""Convert inventory to a dict with interfaces.
:return: dict interface name -> dict with keys 'mac' and 'ip'
"""
result = {}
inventory = utils.get_inventory(data)
pxe_mac = utils.get_pxe_mac(data)
for iface in inventory['interfaces']:
name = iface.get('name')
mac = iface.get('mac_address')
ipv4_address = iface.get('ipv4_address')
ipv6_address = iface.get('ipv6_address')
# NOTE(kaifeng) ipv6 address may in the form of fd00::1%enp2s0,
# which is not supported by netaddr, remove the suffix if exists.
if ipv6_address and '%' in ipv6_address:
ipv6_address = ipv6_address.split('%')[0]
ip = ipv4_address or ipv6_address
client_id = iface.get('client_id')
if not name:
LOG.error('Malformed interface record: %s',
iface, data=data)
continue
if not mac:
LOG.debug('Skipping interface %s without link information',
name, data=data)
continue
if not netutils.is_valid_mac(mac):
LOG.warning('MAC %(mac)s for interface %(name)s is '
'not valid, skipping',
{'mac': mac, 'name': name},
data=data)
continue
mac = mac.lower()
LOG.debug('Found interface %(name)s with MAC "%(mac)s", '
'IP address "%(ip)s" and client_id "%(client_id)s"',
{'name': name, 'mac': mac, 'ip': ip,
'client_id': client_id}, data=data)
result[name] = {'ip': ip, 'mac': mac, 'client_id': client_id,
'pxe': (mac == pxe_mac)}
return result
def _validate_interfaces(self, interfaces, data=None):
"""Validate interfaces on correctness and suitability.
:return: dict interface name -> dict with keys 'mac' and 'ip'
"""
if not interfaces:
raise utils.Error(_('No interfaces supplied by the ramdisk'),
data=data)
pxe_mac = utils.get_pxe_mac(data)
if not pxe_mac and CONF.processing.add_ports == 'pxe':
LOG.warning('No boot interface provided in the introspection '
'data, will add all ports with IP addresses')
result = {}
for name, iface in interfaces.items():
ip = iface.get('ip')
pxe = iface.get('pxe', True)
if name == 'lo' or (ip and netaddr.IPAddress(ip).is_loopback()):
LOG.debug('Skipping local interface %s', name, data=data)
continue
if CONF.processing.add_ports == 'pxe' and pxe_mac and not pxe:
LOG.debug('Skipping interface %s as it was not PXE booting',
name, data=data)
continue
elif CONF.processing.add_ports != 'all' and not ip:
LOG.debug('Skipping interface %s as it did not have '
'an IP address assigned during the ramdisk run',
name, data=data)
continue
result[name] = iface
if not result:
raise utils.Error(_('No suitable interfaces found in %s') %
interfaces, data=data)
return result
def before_processing(self, introspection_data, **kwargs):
"""Validate information about network interfaces."""
bmc_address = utils.get_ipmi_address_from_data(introspection_data)
bmc_v6address = utils.get_ipmi_v6address_from_data(introspection_data)
# Overwrite the old ipmi_address field to avoid inconsistency
introspection_data['ipmi_address'] = bmc_address
introspection_data['ipmi_v6address'] = bmc_v6address
if not (bmc_address or bmc_v6address):
LOG.debug('No BMC address provided in introspection data, '
'assuming virtual environment', data=introspection_data)
all_interfaces = self._get_interfaces(introspection_data)
interfaces = self._validate_interfaces(all_interfaces,
introspection_data)
LOG.info('Using network interface(s): %s',
', '.join('%s %s' % (name, items)
for (name, items) in interfaces.items()),
data=introspection_data)
introspection_data['all_interfaces'] = all_interfaces
introspection_data['interfaces'] = interfaces
valid_macs = [iface['mac'] for iface in interfaces.values()]
introspection_data['macs'] = valid_macs
def before_update(self, introspection_data, node_info, **kwargs):
"""Create new ports and drop ports that are not present in the data."""
interfaces = introspection_data.get('interfaces')
if CONF.processing.add_ports != 'disabled':
node_info.create_ports(list(interfaces.values()))
if CONF.processing.keep_ports == 'present':
expected_macs = {
iface['mac']
for iface in introspection_data['all_interfaces'].values()
}
elif CONF.processing.keep_ports == 'added':
expected_macs = set(introspection_data['macs'])
node_provision_state = node_info.node().provision_state
if node_provision_state in ir_utils.VALID_ACTIVE_STATES:
LOG.debug('Node %(node)s is %(state)s; '
'not modifying / deleting its ports',
{'node': node_info.uuid,
'state': node_provision_state})
return
if CONF.processing.keep_ports != 'all':
# list is required as we modify underlying dict
for port in list(node_info.ports().values()):
if port.address not in expected_macs:
LOG.info("Deleting port %(port)s as its MAC %(mac)s is "
"not in expected MAC list %(expected)s",
{'port': port.uuid,
'mac': port.address,
'expected': list(sorted(expected_macs))},
node_info=node_info, data=introspection_data)
node_info.delete_port(port)
if (CONF.processing.overwrite_existing
and CONF.processing.update_pxe_enabled):
# Make sure is_pxe_enabled is up-to-date
ports = node_info.ports()
for iface in introspection_data['interfaces'].values():
try:
port = ports[iface['mac']]
except KeyError:
continue
real_pxe = iface.get('pxe', True)
if port.is_pxe_enabled != real_pxe:
LOG.info('Fixing is_pxe_enabled=%(val)s on port %(port)s '
'to match introspected data',
{'port': port.address, 'val': real_pxe},
node_info=node_info, data=introspection_data)
node_info.patch_port(port, [{'op': 'replace',
'path': '/pxe_enabled',
'value': real_pxe}])
class RamdiskErrorHook(base.ProcessingHook):
"""Hook to process error send from the ramdisk."""
def before_processing(self, introspection_data, **kwargs):
error = introspection_data.get('error')
if error:
raise utils.Error(_('Ramdisk reported error: %s') % error,
data=introspection_data)