Hardware introspection daemon for OpenStack Ironic
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ironic-inspector/ironic_inspector/plugins/rules.py

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6.0 KiB

# 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 plugins for rules API."""
import operator
import re
import netaddr
from openstack import exceptions as os_exc
from ironic_inspector.common.i18n import _
from ironic_inspector.plugins import base
from ironic_inspector import utils
LOG = utils.getProcessingLogger(__name__)
def coerce(value, expected):
if isinstance(expected, float):
return float(value)
elif isinstance(expected, int):
return int(value)
else:
return value
class SimpleCondition(base.RuleConditionPlugin):
op = None
def check(self, node_info, field, params, **kwargs):
value = params['value']
return self.op(coerce(field, value), value)
class EqCondition(SimpleCondition):
op = operator.eq
class LtCondition(SimpleCondition):
op = operator.lt
class GtCondition(SimpleCondition):
op = operator.gt
class LeCondition(SimpleCondition):
op = operator.le
class GeCondition(SimpleCondition):
op = operator.ge
class NeCondition(SimpleCondition):
op = operator.ne
class EmptyCondition(base.RuleConditionPlugin):
REQUIRED_PARAMS = set()
ALLOW_NONE = True
def check(self, node_info, field, params, **kwargs):
return field in ('', None, [], {})
class NetCondition(base.RuleConditionPlugin):
def validate(self, params, **kwargs):
super(NetCondition, self).validate(params, **kwargs)
# Make sure it does not raise
try:
netaddr.IPNetwork(params['value'])
except netaddr.AddrFormatError as exc:
raise ValueError('invalid value: %s' % exc)
def check(self, node_info, field, params, **kwargs):
network = netaddr.IPNetwork(params['value'])
return netaddr.IPAddress(field) in network
class ReCondition(base.RuleConditionPlugin):
def validate(self, params, **kwargs):
try:
re.compile(params['value'])
except re.error as exc:
raise ValueError(_('invalid regular expression: %s') % exc)
class MatchesCondition(ReCondition):
def check(self, node_info, field, params, **kwargs):
regexp = params['value']
if regexp[-1] != '$':
regexp += '$'
return re.match(regexp, str(field)) is not None
class ContainsCondition(ReCondition):
def check(self, node_info, field, params, **kwargs):
return re.search(params['value'], str(field)) is not None
class FailAction(base.RuleActionPlugin):
REQUIRED_PARAMS = {'message'}
def apply(self, node_info, params, **kwargs):
raise utils.Error(params['message'], node_info=node_info)
class SetAttributeAction(base.RuleActionPlugin):
# NOTE(iurygregory): set as optional to accept None as value, check
# that the key 'value' is present, otherwise will raise ValueError.
OPTIONAL_PARAMS = {'value', 'reset_interfaces'}
REQUIRED_PARAMS = {'path'}
# TODO(dtantsur): proper validation of path
FORMATTED_PARAMS = ['value']
def apply(self, node_info, params, **kwargs):
kwargs = {}
if (params['path'].strip('/') == 'driver'
and ('reset_interfaces' not in params
or params['reset_interfaces'])):
# Using at least Rocky
kwargs['reset_interfaces'] = True
try:
node_info.patch([{'op': 'add', 'path': params['path'],
'value': params['value']}], **kwargs)
except (TypeError, os_exc.SDKException):
# TODO(dtantsur): remove support for old ironicclient and Queens
if 'reset_interfaces' in params:
# An explicit request, report an error.
raise utils.Error(
_('Cannot pass reset_interfaces to set-attribute, '
'requires API 1.46 and ironicclient >= 2.5.0'))
LOG.warning('Not passing reset_interfaces to Ironic, since '
' API 1.46 and/or ironicclient >= 2.5.0 are '
'not available', node_info=node_info)
node_info.patch([{'op': 'add', 'path': params['path'],
'value': params['value']}])
def validate(self, params, **kwargs):
if 'value' in params:
super(base.RuleActionPlugin, self).validate(params, **kwargs)
else:
msg = _('missing required parameter(s): value')
raise ValueError(msg)
class SetCapabilityAction(base.RuleActionPlugin):
REQUIRED_PARAMS = {'name'}
OPTIONAL_PARAMS = {'value'}
FORMATTED_PARAMS = ['value']
def apply(self, node_info, params, **kwargs):
node_info.update_capabilities(
**{params['name']: params.get('value')})
class ExtendAttributeAction(base.RuleActionPlugin):
REQUIRED_PARAMS = {'path', 'value'}
OPTIONAL_PARAMS = {'unique'}
# TODO(dtantsur): proper validation of path
FORMATTED_PARAMS = ['value']
def apply(self, node_info, params, **kwargs):
def _replace(values):
value = params['value']
if not params.get('unique') or value not in values:
values.append(value)
return values
node_info.replace_field(params['path'], _replace, default=[])
class AddTraitAction(base.RuleActionPlugin):
REQUIRED_PARAMS = {'name'}
def apply(self, node_info, params, **kwargs):
node_info.add_trait(params['name'])
class RemoveTraitAction(base.RuleActionPlugin):
REQUIRED_PARAMS = {'name'}
def apply(self, node_info, params, **kwargs):
node_info.remove_trait(params['name'])