124 lines
4.6 KiB
Python
124 lines
4.6 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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import time
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from cinderclient import exceptions as cinder_exceptions
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from oslo_config import cfg
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from oslo_log import log as logging
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from tenacity import retry
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from tenacity import stop_after_attempt
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from octavia.common import clients
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from octavia.common import constants
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from octavia.common import exceptions
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from octavia.volume import volume_base
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LOG = logging.getLogger(__name__)
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CONF = cfg.CONF
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class VolumeManager(volume_base.VolumeBase):
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'''Volume implementation of virtual machines via cinder.'''
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def __init__(self):
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super(VolumeManager, self).__init__()
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# Must initialize cinder api
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self._cinder_client = clients.CinderAuth.get_cinder_client(
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service_name=CONF.cinder.service_name,
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endpoint=CONF.cinder.endpoint,
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region=CONF.cinder.region_name,
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endpoint_type=CONF.cinder.endpoint_type,
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insecure=CONF.cinder.insecure,
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cacert=CONF.cinder.ca_certificates_file
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)
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self.manager = self._cinder_client.volumes
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@retry(reraise=True,
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stop=stop_after_attempt(CONF.cinder.volume_create_max_retries))
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def create_volume_from_image(self, image_id):
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"""Create cinder volume
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:param image_id: ID of amphora image
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:return volume id
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"""
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volume = self.manager.create(
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size=CONF.cinder.volume_size,
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volume_type=CONF.cinder.volume_type,
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availability_zone=CONF.cinder.availability_zone,
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imageRef=image_id)
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resource_status = self.manager.get(volume.id).status
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status = constants.CINDER_STATUS_AVAILABLE
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start = int(time.time())
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while resource_status != status:
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time.sleep(CONF.cinder.volume_create_retry_interval)
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instance_volume = self.manager.get(volume.id)
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resource_status = instance_volume.status
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if resource_status == constants.CINDER_STATUS_ERROR:
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LOG.error('Error creating %s', instance_volume.id)
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instance_volume.delete()
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raise cinder_exceptions.ResourceInErrorState(
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obj=volume, fault_msg='Cannot create volume')
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if int(time.time()) - start >= CONF.cinder.volume_create_timeout:
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LOG.error('Timed out waiting to create cinder volume %s',
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instance_volume.id)
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instance_volume.delete()
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raise cinder_exceptions.TimeoutException(
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obj=volume, action=constants.CINDER_ACTION_CREATE_VOLUME)
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return volume.id
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def delete_volume(self, volume_id):
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"""Get glance image from volume
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:param volume_id: ID of amphora boot volume
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:return image id
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"""
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LOG.debug('Deleting cinder volume %s', volume_id)
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try:
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instance_volume = self.manager.get(volume_id)
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try:
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instance_volume.delete()
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LOG.debug("Deleted volume %s", volume_id)
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except Exception:
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LOG.exception("Error deleting cinder volume %s",
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volume_id)
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raise exceptions.VolumeDeleteException()
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except cinder_exceptions.NotFound:
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LOG.warning("Volume %s not found: assuming already deleted",
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volume_id)
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def get_image_from_volume(self, volume_id):
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"""Get glance image from volume
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:param volume_id: ID of amphora boot volume
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:return image id
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"""
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image_id = None
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LOG.debug('Get glance image for volume %s', volume_id)
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try:
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instance_volume = self.manager.get(volume_id)
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except cinder_exceptions.NotFound:
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LOG.exception("Volume %s not found", volume_id)
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raise exceptions.VolumeGetException()
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if hasattr(instance_volume, 'volume_image_metadata'):
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image_id = instance_volume.volume_image_metadata.get("image_id")
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else:
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LOG.error("Volume %s has no image metadata", volume_id)
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image_id = None
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return image_id
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