OpenStack Orchestration (Heat)
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heat/heat/engine/clients/os/cinder.py

234 lines
8.0 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.
import logging
from cinderclient import client as cc
from cinderclient import exceptions
from keystoneclient import exceptions as ks_exceptions
from heat.common import exception
from heat.common.i18n import _
from heat.common.i18n import _LI
from heat.engine.clients import client_plugin
from heat.engine import constraints
from heat.engine import resource
LOG = logging.getLogger(__name__)
class CinderClientPlugin(client_plugin.ClientPlugin):
exceptions_module = exceptions
def get_volume_api_version(self):
'''Returns the most recent API version.'''
endpoint_type = self._get_client_option('cinder', 'endpoint_type')
try:
self.url_for(service_type='volumev2', endpoint_type=endpoint_type)
return 2
except ks_exceptions.EndpointNotFound:
try:
self.url_for(service_type='volume',
endpoint_type=endpoint_type)
return 1
except ks_exceptions.EndpointNotFound:
return None
def _create(self):
con = self.context
volume_api_version = self.get_volume_api_version()
if volume_api_version == 1:
service_type = 'volume'
client_version = '1'
elif volume_api_version == 2:
service_type = 'volumev2'
client_version = '2'
else:
raise exception.Error(_('No volume service available.'))
LOG.info(_LI('Creating Cinder client with volume API version %d.'),
volume_api_version)
endpoint_type = self._get_client_option('cinder', 'endpoint_type')
args = {
'service_type': service_type,
'auth_url': con.auth_url or '',
'project_id': con.tenant,
'username': None,
'api_key': None,
'endpoint_type': endpoint_type,
'http_log_debug': self._get_client_option('cinder',
'http_log_debug'),
'cacert': self._get_client_option('cinder', 'ca_file'),
'insecure': self._get_client_option('cinder', 'insecure')
}
client = cc.Client(client_version, **args)
management_url = self.url_for(service_type=service_type,
endpoint_type=endpoint_type)
client.client.auth_token = self.auth_token
client.client.management_url = management_url
client.volume_api_version = volume_api_version
return client
def get_volume(self, volume):
try:
return self.client().volumes.get(volume)
except exceptions.NotFound as ex:
LOG.info(_LI('Volume (%(volume)s) not found: %(ex)s'),
{'volume': volume, 'ex': ex})
raise exception.VolumeNotFound(volume=volume)
def get_volume_snapshot(self, snapshot):
try:
return self.client().volume_snapshots.get(snapshot)
except exceptions.NotFound as ex:
LOG.info(_LI('VolumeSnapshot (%(snapshot)s) not found: %(ex)s'),
{'snapshot': snapshot, 'ex': ex})
raise exception.VolumeSnapshotNotFound(snapshot=snapshot)
def get_volume_type(self, volume_type):
vt_id = None
volume_type_list = self.client().volume_types.list()
for vt in volume_type_list:
if vt.name == volume_type:
vt_id = vt.id
break
if vt.id == volume_type:
vt_id = vt.id
break
if vt_id is None:
raise exception.VolumeTypeNotFound(volume_type=volume_type)
return vt_id
def is_not_found(self, ex):
return isinstance(ex, exceptions.NotFound)
def is_over_limit(self, ex):
return isinstance(ex, exceptions.OverLimit)
def is_conflict(self, ex):
return (isinstance(ex, exceptions.ClientException) and
ex.code == 409)
def check_detach_volume_complete(self, vol_id):
try:
vol = self.client().volumes.get(vol_id)
except Exception as ex:
self.ignore_not_found(ex)
return True
if vol.status in ('in-use', 'detaching'):
LOG.debug('%s - volume still in use' % vol_id)
return False
LOG.debug('Volume %(id)s - status: %(status)s' % {
'id': vol.id, 'status': vol.status})
if vol.status not in ('available', 'deleting'):
LOG.debug("Detachment failed - volume %(vol)s "
"is in %(status)s status" % {"vol": vol.id,
"status": vol.status})
raise resource.ResourceUnknownStatus(
resource_status=vol.status,
result=_('Volume detachment failed'))
else:
return True
def check_attach_volume_complete(self, vol_id):
vol = self.client().volumes.get(vol_id)
if vol.status in ('available', 'attaching'):
LOG.debug("Volume %(id)s is being attached - "
"volume status: %(status)s" % {'id': vol_id,
'status': vol.status})
return False
if vol.status != 'in-use':
LOG.debug("Attachment failed - volume %(vol)s is "
"in %(status)s status" % {"vol": vol_id,
"status": vol.status})
raise resource.ResourceUnknownStatus(
resource_status=vol.status,
result=_('Volume attachment failed'))
LOG.info(_LI('Attaching volume %(id)s complete'), {'id': vol_id})
return True
# NOTE(pshchelo): these Volume*Progress classes are simple key-value storages
# meant to be passed between handle_<action> and check_<action>_complete,
# being mutated during subsequent check_<action>_complete calls.
class VolumeDetachProgress(object):
def __init__(self, srv_id, vol_id, attach_id, val=False):
self.called = val
self.cinder_complete = val
self.nova_complete = val
self.srv_id = srv_id
self.vol_id = vol_id
self.attach_id = attach_id
class VolumeAttachProgress(object):
def __init__(self, srv_id, vol_id, device, val=False):
self.called = val
self.complete = val
self.srv_id = srv_id
self.vol_id = vol_id
self.device = device
class VolumeDeleteProgress(object):
def __init__(self, val=False):
self.backup = {'called': val,
'complete': val}
self.delete = {'called': val,
'complete': val}
self.backup_id = None
class VolumeResizeProgress(object):
def __init__(self, val=False, size=None):
self.called = val
self.complete = val
self.size = size
class VolumeConstraint(constraints.BaseCustomConstraint):
expected_exceptions = (exception.VolumeNotFound,)
def validate_with_client(self, client, volume):
client.client_plugin('cinder').get_volume(volume)
class VolumeSnapshotConstraint(constraints.BaseCustomConstraint):
expected_exceptions = (exception.VolumeSnapshotNotFound,)
def validate_with_client(self, client, snapshot):
client.client_plugin('cinder').get_volume_snapshot(snapshot)
class VolumeTypeConstraint(constraints.BaseCustomConstraint):
expected_exceptions = (exception.VolumeTypeNotFound,)
def validate_with_client(self, client, volume_type):
client.client_plugin('cinder').get_volume_type(volume_type)