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

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3.3 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.
"""Plugin to store extra hardware information in Swift.
Stores the value of the 'data' key returned by the ramdisk as a JSON encoded
string in a Swift object. The object is named 'extra_hardware-<node uuid>' and
is stored in the 'inspector' container.
"""
from ironic_inspector.plugins import base
from ironic_inspector import utils
LOG = utils.getProcessingLogger(__name__)
EDEPLOY_ITEM_SIZE = 4
class ExtraHardwareHook(base.ProcessingHook):
"""Processing hook for saving extra hardware information in Swift."""
def before_update(self, introspection_data, node_info, **kwargs):
"""Stores the 'data' key from introspection_data in Swift.
If the 'data' key exists, updates Ironic extra column
'hardware_swift_object' key to the name of the Swift object, and stores
the data in the 'inspector' container in Swift.
Otherwise, it does nothing.
"""
if 'data' not in introspection_data:
LOG.warning('No extra hardware information was received from '
'the ramdisk', node_info=node_info,
data=introspection_data)
return
data = introspection_data['data']
# NOTE(sambetts) If data is edeploy format, convert to dicts for rules
# processing, store converted data in introspection_data['extra'].
# Delete introspection_data['data'], it is assumed unusable
# by rules.
if self._is_edeploy_data(data):
LOG.debug('Extra hardware data is in eDeploy format, '
'converting to usable format',
node_info=node_info, data=introspection_data)
introspection_data['extra'] = self._convert_edeploy_data(data)
else:
LOG.warning('Extra hardware data was not in a recognised '
'format (eDeploy), and will not be forwarded to '
'introspection rules', node_info=node_info,
data=introspection_data)
LOG.debug('Deleting \"data\" key from introspection data as it is '
'assumed unusable by introspection rules. Raw data is '
'stored in swift',
node_info=node_info, data=introspection_data)
del introspection_data['data']
def _is_edeploy_data(self, data):
return all(isinstance(item, list) and len(item) == EDEPLOY_ITEM_SIZE
for item in data)
def _convert_edeploy_data(self, data):
converted = {}
for item in data:
converted_0 = converted.setdefault(item[0], {})
converted_1 = converted_0.setdefault(item[1], {})
try:
item[3] = int(item[3])
except (ValueError, TypeError):
pass
converted_1[item[2]] = item[3]
return converted