60 lines
2.3 KiB
Python
60 lines
2.3 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 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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from oslo_log import log
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from ironic_python_agent import exceptions
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from ironic_python_agent import hardware
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LOG = log.getLogger()
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def _is_supported_disk(block_device):
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# Helper methods are outside the class, to prevent them from being called
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# by dispatch_to_managers.
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#
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# This method would perform checks to see if this is a disk that is
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# supported by this custom hardware manager.
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return True
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class ExampleDiskEraserHardwareManager(hardware.HardwareManager):
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"""Example hardware manager to support wiping a specific model disk"""
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# All hardware managers have a name and a version.
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# Version should be bumped anytime a change is introduced. This will
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# signal to Ironic that if automatic node cleaning is in progress to
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# restart it from the beginning, to ensure consistency. The value can
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# be anything; it's checked for equality against previously seen
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# name:manager pairs.
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HARDWARE_MANAGER_NAME = 'ExampleDiskEraserHardwareManager'
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HARDWARE_MANAGER_VERSION = '1'
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def evaluate_hardware_support(self):
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"""Declare level of hardware support provided.
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Since this example covers a case of supporting a specific device,
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for disk erasure, we're going to return SERVICE_PROVIDER statically,
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and actually do disk detection in erase_device method.
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:returns: HardwareSupport level for this manager.
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"""
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return hardware.HardwareSupport.SERVICE_PROVIDER
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def erase_block_device(self, node, block_device):
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"""Erases hardware via custom utility if supported."""
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if not _is_supported_disk(block_device):
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raise exceptions.IncompatibleHardwareMethodError(
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"Not supported by this manager")
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# Put your code here to wipe the disk.
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