Source code for ironic_inspector.plugins.pci_devices

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"""Gather and distinguish PCI devices from inventory."""

import collections
import json

from oslo_config import cfg

from ironic_inspector.common.i18n import _
from ironic_inspector.plugins import base
from ironic_inspector import utils

PCI_DEVICES_OPTS = [
    cfg.MultiStrOpt('alias',
                    default=[],
                    help=_('An alias for PCI device identified by '
                           '\'vendor_id\' and \'product_id\' fields. Format: '
                           '{"vendor_id": "1234", "product_id": "5678", '
                           '"name": "pci_dev1"}')),
]


[docs]def list_opts(): return [ ('pci_devices', PCI_DEVICES_OPTS) ]
CONF = cfg.CONF CONF.register_opts(PCI_DEVICES_OPTS, group='pci_devices') LOG = utils.getProcessingLogger(__name__) def _parse_pci_alias_entry(): parsed_pci_devices = [] for pci_alias_entry in CONF.pci_devices.alias: try: parsed_entry = json.loads(pci_alias_entry) if set(parsed_entry) != {'vendor_id', 'product_id', 'name'}: raise KeyError("The 'alias' entry should contain " "exactly 'vendor_id', 'product_id' and " "'name' keys") parsed_pci_devices.append(parsed_entry) except (ValueError, KeyError) as ex: LOG.error("Error parsing 'alias' option: %s", ex) return {(dev['vendor_id'], dev['product_id']): dev['name'] for dev in parsed_pci_devices}
[docs]class PciDevicesHook(base.ProcessingHook): """Processing hook for counting and distinguishing various PCI devices. That information can be later used by nova for node scheduling. """ aliases = _parse_pci_alias_entry() def _found_pci_devices_count(self, found_pci_devices): return collections.Counter([(dev['vendor_id'], dev['product_id']) for dev in found_pci_devices if (dev['vendor_id'], dev['product_id']) in self.aliases])
[docs] def before_update(self, introspection_data, node_info, **kwargs): if 'pci_devices' not in introspection_data: if CONF.pci_devices.alias: LOG.warning('No PCI devices information was received from ' 'the ramdisk.') return alias_count = {self.aliases[id_pair]: count for id_pair, count in self._found_pci_devices_count( introspection_data['pci_devices']).items()} if alias_count: node_info.update_capabilities(**alias_count) LOG.info('Found the following PCI devices: %s', alias_count)