88 lines
3.2 KiB
Python
88 lines
3.2 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Gather and distinguish PCI devices from inventory."""
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import collections
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import json
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from oslo_config import cfg
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from ironic_inspector.common.i18n import _
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from ironic_inspector.plugins import base
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from ironic_inspector import utils
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PCI_DEVICES_OPTS = [
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cfg.MultiStrOpt('alias',
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default=[],
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help=_('An alias for PCI device identified by '
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'\'vendor_id\' and \'product_id\' fields. Format: '
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'{"vendor_id": "1234", "product_id": "5678", '
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'"name": "pci_dev1"}')),
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]
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def list_opts():
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return [
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('pci_devices', PCI_DEVICES_OPTS)
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]
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CONF = cfg.CONF
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CONF.register_opts(PCI_DEVICES_OPTS, group='pci_devices')
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LOG = utils.getProcessingLogger(__name__)
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def _parse_pci_alias_entry():
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parsed_pci_devices = []
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for pci_alias_entry in CONF.pci_devices.alias:
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try:
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parsed_entry = json.loads(pci_alias_entry)
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if set(parsed_entry) != {'vendor_id', 'product_id', 'name'}:
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raise KeyError("The 'alias' entry should contain "
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"exactly 'vendor_id', 'product_id' and "
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"'name' keys")
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parsed_pci_devices.append(parsed_entry)
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except (ValueError, KeyError) as ex:
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LOG.error("Error parsing 'alias' option: %s", ex)
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return {(dev['vendor_id'], dev['product_id']): dev['name']
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for dev in parsed_pci_devices}
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class PciDevicesHook(base.ProcessingHook):
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"""Processing hook for counting and distinguishing various PCI devices.
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That information can be later used by nova for node scheduling.
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"""
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aliases = _parse_pci_alias_entry()
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def _found_pci_devices_count(self, found_pci_devices):
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return collections.Counter([(dev['vendor_id'], dev['product_id'])
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for dev in found_pci_devices
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if (dev['vendor_id'], dev['product_id'])
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in self.aliases])
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def before_update(self, introspection_data, node_info, **kwargs):
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if 'pci_devices' not in introspection_data:
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if CONF.pci_devices.alias:
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LOG.warning('No PCI devices information was received from '
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'the ramdisk.')
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return
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alias_count = {self.aliases[id_pair]: count for id_pair, count in
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self._found_pci_devices_count(
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introspection_data['pci_devices']).items()}
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if alias_count:
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node_info.update_capabilities(**alias_count)
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LOG.info('Found the following PCI devices: %s', alias_count)
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