71 lines
2.5 KiB
Python
71 lines
2.5 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from oslo_config import cfg
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from oslo_log import log
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from ironic.common import exception
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from ironic.common.i18n import _
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from ironic.common import pxe_utils as common_pxe_utils
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from ironic.drivers import base
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CONF = cfg.CONF
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LOG = log.getLogger(__name__)
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class ExternalStorage(base.StorageInterface):
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"""Externally driven Storage Interface."""
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def validate(self, task):
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def _fail_validation(task, reason,
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exception=exception.InvalidParameterValue):
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msg = (_("Failed to validate external storage interface for node "
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"%(node)s. %(reason)s") %
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{'node': task.node.uuid, 'reason': reason})
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LOG.error(msg)
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raise exception(msg)
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if (not self.should_write_image(task)
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and not common_pxe_utils.is_ipxe_enabled(task)):
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msg = _("The [pxe]/ipxe_enabled option must "
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"be set to True to support network "
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"booting to an iSCSI volume or the boot "
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"interface must be set to ``ipxe``.")
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_fail_validation(task, msg)
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def get_properties(self):
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return {}
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def attach_volumes(self, task):
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pass
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def detach_volumes(self, task):
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pass
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def should_write_image(self, task):
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"""Determines if deploy should perform the image write-out.
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This enables the user to define a volume and Ironic understand
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that the image may already exist and we may be booting to that volume.
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:param task: The task object.
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:returns: True if the deployment write-out process should be
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executed.
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"""
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instance_info = task.node.instance_info
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if 'image_source' not in instance_info:
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for volume in task.volume_targets:
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if volume['boot_index'] == 0:
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return False
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return True
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