def disassociate_floating_ip(self,
context,
address,
affect_auto_assigned=False):
"""Disassociates a floating IP from its fixed IP.
Makes sure everything makes sense then calls _disassociate_floating_ip,
rpc'ing to correct host if i'm not it.
"""
floating_ip = objects.FloatingIP.get_by_address(context, address)
# handle auto assigned
if not affect_auto_assigned and floating_ip.auto_assigned:
raise exception.CannotDisassociateAutoAssignedFloatingIP()
# make sure project owns this floating ip (allocated)
self._floating_ip_owned_by_project(context, floating_ip)
# make sure floating ip is associated
if not floating_ip.fixed_ip_id:
floating_address = floating_ip.address
raise exception.FloatingIpNotAssociated(address=floating_address)
fixed_ip = objects.FixedIP.get_by_id(context, floating_ip.fixed_ip_id)
# send to correct host, unless i'm the correct host
network = objects.Network.get_by_id(context.elevated(),
fixed_ip.network_id)
interface = floating_ip.interface
if network.multi_host:
instance = objects.Instance.get_by_uuid(context,
fixed_ip.instance_uuid)
service = objects.Service.get_by_host_and_binary(
context.elevated(), instance.host, 'compute-network')
if service and self.servicegroup_api.service_is_up(service):
host = instance.host
else:
# NOTE(vish): if the service is down just deallocate the data
# locally. Set the host to local so the call will
# not go over rpc and set interface to None so the
# teardown in the driver does not happen.
host = self.host
interface = None
else:
host = network.host
if host == self.host:
# i'm the correct host
self._disassociate_floating_ip(context, address, interface,
fixed_ip.instance_uuid)
else:
# send to correct host
self.network_rpcapi._disassociate_floating_ip(
context, address, interface, host, fixed_ip.instance_uuid)
def disassociate_floating_ip(self, context, address,
affect_auto_assigned=False):
"""Disassociates a floating IP from its fixed IP.
Makes sure everything makes sense then calls _disassociate_floating_ip,
rpc'ing to correct host if i'm not it.
"""
floating_ip = objects.FloatingIP.get_by_address(context, address)
# handle auto assigned
if not affect_auto_assigned and floating_ip.auto_assigned:
raise exception.CannotDisassociateAutoAssignedFloatingIP()
# make sure project owns this floating ip (allocated)
self._floating_ip_owned_by_project(context, floating_ip)
# make sure floating ip is associated
if not floating_ip.fixed_ip_id:
floating_address = floating_ip.address
raise exception.FloatingIpNotAssociated(address=floating_address)
fixed_ip = objects.FixedIP.get_by_id(context, floating_ip.fixed_ip_id)
# send to correct host, unless i'm the correct host
network = objects.Network.get_by_id(context.elevated(),
fixed_ip.network_id)
interface = floating_ip.interface
if network.multi_host:
instance = objects.Instance.get_by_uuid(
context, fixed_ip.instance_uuid)
service = objects.Service.get_by_host_and_binary(
context.elevated(), instance.host, 'compute-network')
if service and self.servicegroup_api.service_is_up(service):
host = instance.host
else:
# NOTE(vish): if the service is down just deallocate the data
# locally. Set the host to local so the call will
# not go over rpc and set interface to None so the
# teardown in the driver does not happen.
host = self.host
interface = None
else:
host = network.host
if host == self.host:
# i'm the correct host
self._disassociate_floating_ip(context, address, interface,
fixed_ip.instance_uuid)
else:
# send to correct host
self.network_rpcapi._disassociate_floating_ip(context, address,
interface, host, fixed_ip.instance_uuid)
def destroy(context, id):
"""Marks volume types as deleted."""
if id is None:
msg = _("id cannot be None")
raise exception.InvalidVolumeType(reason=msg)
else:
elevated = context if context.is_admin else context.elevated()
db.volume_type_destroy(elevated, id)
def destroy(context, id):
"""Marks volume types as deleted."""
if id is None:
msg = _("id cannot be None")
raise exception.InvalidVolumeType(reason=msg)
else:
elevated = context if context.is_admin else context.elevated()
db.volume_type_destroy(elevated, id)
def associate_floating_ip(self, context, floating_address, fixed_address,
affect_auto_assigned=False):
"""Associates a floating IP with a fixed IP.
Makes sure everything makes sense then calls _associate_floating_ip,
rpc'ing to correct host if i'm not it.
Access to the floating_address is verified but access to the
fixed_address is not verified. This assumes that that the calling
side has already verified that the fixed_address is legal by
checking access to the instance.
"""
floating_ip = objects.FloatingIP.get_by_address(context,
floating_address)
# handle auto_assigned
if not affect_auto_assigned and floating_ip.auto_assigned:
return
# make sure project owns this floating ip (allocated)
self._floating_ip_owned_by_project(context, floating_ip)
# disassociate any already associated
orig_instance_uuid = None
if floating_ip.fixed_ip_id:
# find previously associated instance
fixed_ip = floating_ip.fixed_ip
if str(fixed_ip.address) == fixed_address:
# NOTE(vish): already associated to this address
return
orig_instance_uuid = fixed_ip.instance_uuid
self.disassociate_floating_ip(context, floating_address)
fixed_ip = objects.FixedIP.get_by_address(context, fixed_address)
# send to correct host, unless i'm the correct host
network = objects.Network.get_by_id(context.elevated(),
fixed_ip.network_id)
if network.multi_host:
instance = objects.Instance.get_by_uuid(
context, fixed_ip.instance_uuid)
host = instance.host
else:
host = network.host
interface = floating_ip.interface
if host == self.host:
# i'm the correct host
self._associate_floating_ip(context, floating_address,
fixed_address, interface,
fixed_ip.instance_uuid)
else:
# send to correct host
self.network_rpcapi._associate_floating_ip(context,
floating_address, fixed_address, interface, host,
fixed_ip.instance_uuid)
return orig_instance_uuid
def remove_volume_type_access(context, volume_type_id, project_id):
"""Remove access to volume type for project_id."""
if volume_type_id is None:
msg = _("volume_type_id cannot be None")
raise exception.InvalidVolumeType(reason=msg)
elevated = context if context.is_admin else context.elevated()
if is_public_volume_type(elevated, volume_type_id):
msg = _("Type access modification is not applicable to public volume "
"type.")
raise exception.InvalidVolumeType(reason=msg)
return db.volume_type_access_remove(elevated, volume_type_id, project_id)
def remove_volume_type_access(context, volume_type_id, project_id):
"""Remove access to volume type for project_id."""
if volume_type_id is None:
msg = _("volume_type_id cannot be None")
raise exception.InvalidVolumeType(reason=msg)
elevated = context if context.is_admin else context.elevated()
if is_public_volume_type(elevated, volume_type_id):
msg = _("Type access modification is not applicable to public volume "
"type.")
raise exception.InvalidVolumeType(reason=msg)
return db.volume_type_access_remove(elevated, volume_type_id, project_id)
def deallocate_for_instance(self, context, **kwargs):
"""Handles deallocating floating IP resources for an instance.
calls super class deallocate_for_instance() as well.
rpc.called by network_api
"""
if 'instance' in kwargs:
instance_uuid = kwargs['instance'].uuid
else:
instance_uuid = kwargs['instance_id']
if not uuidutils.is_uuid_like(instance_uuid):
# NOTE(francois.charlier): in some cases the instance might be
# deleted before the IPs are released, so we need to get
# deleted instances too
instance = objects.Instance.get_by_id(
context.elevated(read_deleted='yes'), instance_uuid)
instance_uuid = instance.uuid
try:
fixed_ips = objects.FixedIPList.get_by_instance_uuid(
context, instance_uuid)
except exception.FixedIpNotFoundForInstance:
fixed_ips = []
# add to kwargs so we can pass to super to save a db lookup there
kwargs['fixed_ips'] = fixed_ips
for fixed_ip in fixed_ips:
fixed_id = fixed_ip.id
floating_ips = objects.FloatingIPList.get_by_fixed_ip_id(
context, fixed_id)
# disassociate floating ips related to fixed_ip
for floating_ip in floating_ips:
address = str(floating_ip.address)
try:
self.disassociate_floating_ip(context,
address,
affect_auto_assigned=True)
except exception.FloatingIpNotAssociated:
LOG.info(_LI("Floating IP %s is not associated. Ignore."),
address)
# deallocate if auto_assigned
if floating_ip.auto_assigned:
self.deallocate_floating_ip(context,
address,
affect_auto_assigned=True)
# call the next inherited class's deallocate_for_instance()
# which is currently the NetworkManager version
# call this after so floating IPs are handled first
super(FloatingIP, self).deallocate_for_instance(context, **kwargs)
def deallocate_for_instance(self, context, **kwargs):
"""Handles deallocating floating IP resources for an instance.
calls super class deallocate_for_instance() as well.
rpc.called by network_api
"""
if 'instance' in kwargs:
instance_uuid = kwargs['instance'].uuid
else:
instance_uuid = kwargs['instance_id']
if not uuidutils.is_uuid_like(instance_uuid):
# NOTE(francois.charlier): in some cases the instance might be
# deleted before the IPs are released, so we need to get
# deleted instances too
instance = objects.Instance.get_by_id(
context.elevated(read_deleted='yes'), instance_uuid)
instance_uuid = instance.uuid
try:
fixed_ips = objects.FixedIPList.get_by_instance_uuid(
context, instance_uuid)
except exception.FixedIpNotFoundForInstance:
fixed_ips = []
# add to kwargs so we can pass to super to save a db lookup there
kwargs['fixed_ips'] = fixed_ips
for fixed_ip in fixed_ips:
fixed_id = fixed_ip.id
floating_ips = objects.FloatingIPList.get_by_fixed_ip_id(context,
fixed_id)
# disassociate floating ips related to fixed_ip
for floating_ip in floating_ips:
address = str(floating_ip.address)
try:
self.disassociate_floating_ip(context,
address,
affect_auto_assigned=True)
except exception.FloatingIpNotAssociated:
LOG.info(_LI("Floating IP %s is not associated. Ignore."),
address)
# deallocate if auto_assigned
if floating_ip.auto_assigned:
self.deallocate_floating_ip(context, address,
affect_auto_assigned=True)
# call the next inherited class's deallocate_for_instance()
# which is currently the NetworkManager version
# call this after so floating IPs are handled first
super(FloatingIP, self).deallocate_for_instance(context, **kwargs)
def update(context, id, name, description, is_public=None):
"""Update volume type by id."""
if id is None:
msg = _("id cannot be None")
raise exception.InvalidVolumeType(reason=msg)
elevated = context if context.is_admin else context.elevated()
old_volume_type = get_volume_type(elevated, id)
try:
type_updated = db.volume_type_update(
elevated, id,
dict(name=name, description=description, is_public=is_public))
# Rename resource in quota if volume type name is changed.
if name:
old_type_name = old_volume_type.get('name')
if old_type_name != name:
QUOTAS.update_quota_resource(elevated, old_type_name, name)
except db_exc.DBError:
LOG.exception(_LE('DB error:'))
raise exception.VolumeTypeUpdateFailed(id=id)
return type_updated
def allocate_for_instance(self, context, **kwargs):
"""Handles allocating the floating IP resources for an instance.
calls super class allocate_for_instance() as well
rpc.called by network_api
"""
instance_uuid = kwargs.get('instance_id')
if not uuidutils.is_uuid_like(instance_uuid):
instance_uuid = kwargs.get('instance_uuid')
project_id = kwargs.get('project_id')
# call the next inherited class's allocate_for_instance()
# which is currently the NetworkManager version
# do this first so fixed ip is already allocated
nw_info = super(FloatingIP,
self).allocate_for_instance(context, **kwargs)
if CONF.auto_assign_floating_ip:
context = context.elevated()
# allocate a floating ip
floating_address = self.allocate_floating_ip(
context, project_id, True)
LOG.debug("floating IP allocation for instance "
"|%s|",
floating_address,
instance_uuid=instance_uuid,
context=context)
# get the first fixed address belonging to the instance
fixed_ips = nw_info.fixed_ips()
fixed_address = fixed_ips[0]['address']
# associate the floating ip to fixed_ip
self.associate_floating_ip(context,
floating_address,
fixed_address,
affect_auto_assigned=True)
# create a fresh set of network info that contains the floating ip
nw_info = self.get_instance_nw_info(context, **kwargs)
return nw_info
def create(context,
name,
extra_specs=None,
is_public=True,
projects=None,
description=None):
"""Creates volume types."""
extra_specs = extra_specs or {}
projects = projects or []
elevated = context if context.is_admin else context.elevated()
try:
type_ref = db.volume_type_create(elevated,
dict(name=name,
extra_specs=extra_specs,
is_public=is_public,
description=description),
projects=projects)
except db_exc.DBError:
LOG.exception(_LE('DB error:'))
raise exception.VolumeTypeCreateFailed(name=name,
extra_specs=extra_specs)
return type_ref
def create(context,
name,
extra_specs=None,
is_public=True,
projects=None,
description=None):
"""Creates volume types."""
extra_specs = extra_specs or {}
projects = projects or []
elevated = context if context.is_admin else context.elevated()
try:
type_ref = db.volume_type_create(elevated,
dict(name=name,
extra_specs=extra_specs,
is_public=is_public,
description=description),
projects=projects)
except db_exc.DBError:
LOG.exception(_LE('DB error:'))
raise exception.VolumeTypeCreateFailed(name=name,
extra_specs=extra_specs)
return type_ref
def allocate_for_instance(self, context, **kwargs):
"""Handles allocating the floating IP resources for an instance.
calls super class allocate_for_instance() as well
rpc.called by network_api
"""
instance_uuid = kwargs.get('instance_id')
if not uuidutils.is_uuid_like(instance_uuid):
instance_uuid = kwargs.get('instance_uuid')
project_id = kwargs.get('project_id')
# call the next inherited class's allocate_for_instance()
# which is currently the NetworkManager version
# do this first so fixed ip is already allocated
nw_info = super(FloatingIP, self).allocate_for_instance(context,
**kwargs)
if CONF.auto_assign_floating_ip:
context = context.elevated()
# allocate a floating ip
floating_address = self.allocate_floating_ip(context, project_id,
True)
LOG.debug("floating IP allocation for instance "
"|%s|", floating_address,
instance_uuid=instance_uuid, context=context)
# get the first fixed address belonging to the instance
fixed_ips = nw_info.fixed_ips()
fixed_address = fixed_ips[0]['address']
# associate the floating ip to fixed_ip
self.associate_floating_ip(context,
floating_address,
fixed_address,
affect_auto_assigned=True)
# create a fresh set of network info that contains the floating ip
nw_info = self.get_instance_nw_info(context, **kwargs)
return nw_info
def update(context, id, name, description, is_public=None):
"""Update volume type by id."""
if id is None:
msg = _("id cannot be None")
raise exception.InvalidVolumeType(reason=msg)
elevated = context if context.is_admin else context.elevated()
old_volume_type = get_volume_type(elevated, id)
try:
type_updated = db.volume_type_update(elevated,
id,
dict(name=name,
description=description,
is_public=is_public))
# Rename resource in quota if volume type name is changed.
if name:
old_type_name = old_volume_type.get('name')
if old_type_name != name:
QUOTAS.update_quota_resource(elevated,
old_type_name,
name)
except db_exc.DBError:
LOG.exception(_LE('DB error:'))
raise exception.VolumeTypeUpdateFailed(id=id)
return type_updated
def create(self,
context,
name,
description,
volume_id,
container,
incremental=False,
availability_zone=None,
force=False,
snapshot_id=None):
"""Make the RPC call to create a volume backup."""
check_policy(context, 'create')
volume = self.volume_api.get(context, volume_id)
snapshot = None
if snapshot_id:
snapshot = self.volume_api.get_snapshot(context, snapshot_id)
if volume_id != snapshot.volume_id:
msg = (_('Volume %(vol1)s does not match with '
'snapshot.volume_id %(vol2)s.') % {
'vol1': volume_id,
'vol2': snapshot.volume_id
})
raise exception.InvalidVolume(reason=msg)
if volume['status'] not in ["available", "in-use"]:
msg = (_('Volume to be backed up must be available '
'or in-use, but the current status is "%s".') %
volume['status'])
raise exception.InvalidVolume(reason=msg)
elif volume['status'] in ["in-use"] and not snapshot_id and not force:
msg = _('Backing up an in-use volume must use ' 'the force flag.')
raise exception.InvalidVolume(reason=msg)
elif snapshot_id and snapshot['status'] not in ["available"]:
msg = (_('Snapshot to be backed up must be available, '
'but the current status is "%s".') % snapshot['status'])
raise exception.InvalidSnapshot(reason=msg)
previous_status = volume['status']
host = self._get_available_backup_service_host(
None, volume.availability_zone,
volume_utils.extract_host(volume.host, 'host'))
# Reserve a quota before setting volume status and backup status
try:
reserve_opts = {'backups': 1, 'backup_gigabytes': volume['size']}
reservations = QUOTAS.reserve(context, **reserve_opts)
except exception.OverQuota as e:
overs = e.kwargs['overs']
usages = e.kwargs['usages']
quotas = e.kwargs['quotas']
def _consumed(resource_name):
return (usages[resource_name]['reserved'] +
usages[resource_name]['in_use'])
for over in overs:
if 'gigabytes' in over:
msg = _LW("Quota exceeded for %(s_pid)s, tried to create "
"%(s_size)sG backup (%(d_consumed)dG of "
"%(d_quota)dG already consumed)")
LOG.warning(
msg, {
's_pid': context.project_id,
's_size': volume['size'],
'd_consumed': _consumed(over),
'd_quota': quotas[over]
})
raise exception.VolumeBackupSizeExceedsAvailableQuota(
requested=volume['size'],
consumed=_consumed('backup_gigabytes'),
quota=quotas['backup_gigabytes'])
elif 'backups' in over:
msg = _LW("Quota exceeded for %(s_pid)s, tried to create "
"backups (%(d_consumed)d backups "
"already consumed)")
LOG.warning(msg, {
's_pid': context.project_id,
'd_consumed': _consumed(over)
})
raise exception.BackupLimitExceeded(allowed=quotas[over])
# Find the latest backup and use it as the parent backup to do an
# incremental backup.
latest_backup = None
if incremental:
backups = storage.BackupList.get_all_by_volume(
context.elevated(), volume_id)
if backups.objects:
# NOTE(xyang): The 'data_timestamp' field records the time
# when the data on the volume was first saved. If it is
# a backup from volume, 'data_timestamp' will be the same
# as 'created_at' for a backup. If it is a backup from a
# snapshot, 'data_timestamp' will be the same as
# 'created_at' for a snapshot.
# If not backing up from snapshot, the backup with the latest
# 'data_timestamp' will be the parent; If backing up from
# snapshot, the backup with the latest 'data_timestamp' will
# be chosen only if 'data_timestamp' is earlier than the
# 'created_at' timestamp of the snapshot; Otherwise, the
# backup will not be chosen as the parent.
# For example, a volume has a backup taken at 8:00, then
# a snapshot taken at 8:10, and then a backup at 8:20.
# When taking an incremental backup of the snapshot, the
# parent should be the backup at 8:00, not 8:20, and the
# 'data_timestamp' of this new backup will be 8:10.
latest_backup = max(
backups.objects,
key=lambda x: x['data_timestamp']
if (not snapshot or (snapshot and x['data_timestamp'] <
snapshot['created_at'])) else
datetime(1, 1, 1, 1, 1, 1, tzinfo=timezone('UTC')))
else:
msg = _('No backups available to do an incremental backup.')
raise exception.InvalidBackup(reason=msg)
parent_id = None
if latest_backup:
parent_id = latest_backup.id
if latest_backup['status'] != fields.BackupStatus.AVAILABLE:
msg = _('The parent backup must be available for '
'incremental backup.')
raise exception.InvalidBackup(reason=msg)
data_timestamp = None
if snapshot_id:
snapshot = storage.Snapshot.get_by_id(context, snapshot_id)
data_timestamp = snapshot.created_at
self.db.volume_update(context, volume_id, {
'status': 'backing-up',
'previous_status': previous_status
})
backup = None
try:
kwargs = {
'user_id': context.user_id,
'project_id': context.project_id,
'display_name': name,
'display_description': description,
'volume_id': volume_id,
'status': fields.BackupStatus.CREATING,
'container': container,
'parent_id': parent_id,
'size': volume['size'],
'host': host,
'snapshot_id': snapshot_id,
'data_timestamp': data_timestamp,
}
backup = storage.Backup(context=context, **kwargs)
backup.create()
if not snapshot_id:
backup.data_timestamp = backup.created_at
backup.save()
QUOTAS.commit(context, reservations)
except Exception:
with excutils.save_and_reraise_exception():
try:
if backup and 'id' in backup:
backup.destroy()
finally:
QUOTAS.rollback(context, reservations)
# TODO(DuncanT): In future, when we have a generic local attach,
# this can go via the scheduler, which enables
# better load balancing and isolation of services
self.backup_rpcapi.create_backup(context, backup)
return backup
def associate_floating_ip(self,
context,
floating_address,
fixed_address,
affect_auto_assigned=False):
"""Associates a floating IP with a fixed IP.
Makes sure everything makes sense then calls _associate_floating_ip,
rpc'ing to correct host if i'm not it.
Access to the floating_address is verified but access to the
fixed_address is not verified. This assumes that that the calling
side has already verified that the fixed_address is legal by
checking access to the instance.
"""
floating_ip = objects.FloatingIP.get_by_address(
context, floating_address)
# handle auto_assigned
if not affect_auto_assigned and floating_ip.auto_assigned:
return
# make sure project owns this floating ip (allocated)
self._floating_ip_owned_by_project(context, floating_ip)
# disassociate any already associated
orig_instance_uuid = None
if floating_ip.fixed_ip_id:
# find previously associated instance
fixed_ip = floating_ip.fixed_ip
if str(fixed_ip.address) == fixed_address:
# NOTE(vish): already associated to this address
return
orig_instance_uuid = fixed_ip.instance_uuid
self.disassociate_floating_ip(context, floating_address)
fixed_ip = objects.FixedIP.get_by_address(context, fixed_address)
# send to correct host, unless i'm the correct host
network = objects.Network.get_by_id(context.elevated(),
fixed_ip.network_id)
if network.multi_host:
instance = objects.Instance.get_by_uuid(context,
fixed_ip.instance_uuid)
host = instance.host
else:
host = network.host
interface = floating_ip.interface
if host == self.host:
# i'm the correct host
self._associate_floating_ip(context, floating_address,
fixed_address, interface,
fixed_ip.instance_uuid)
else:
# send to correct host
self.network_rpcapi._associate_floating_ip(context,
floating_address,
fixed_address,
interface, host,
fixed_ip.instance_uuid)
return orig_instance_uuid
def create(self, context, name, description, volume_id,
container, incremental=False, availability_zone=None,
force=False, snapshot_id=None):
"""Make the RPC call to create a volume backup."""
check_policy(context, 'create')
volume = self.volume_api.get(context, volume_id)
snapshot = None
if snapshot_id:
snapshot = self.volume_api.get_snapshot(context, snapshot_id)
if volume_id != snapshot.volume_id:
msg = (_('Volume %(vol1)s does not match with '
'snapshot.volume_id %(vol2)s.')
% {'vol1': volume_id,
'vol2': snapshot.volume_id})
raise exception.InvalidVolume(reason=msg)
if volume['status'] not in ["available", "in-use"]:
msg = (_('Volume to be backed up must be available '
'or in-use, but the current status is "%s".')
% volume['status'])
raise exception.InvalidVolume(reason=msg)
elif volume['status'] in ["in-use"] and not snapshot_id and not force:
msg = _('Backing up an in-use volume must use '
'the force flag.')
raise exception.InvalidVolume(reason=msg)
elif snapshot_id and snapshot['status'] not in ["available"]:
msg = (_('Snapshot to be backed up must be available, '
'but the current status is "%s".')
% snapshot['status'])
raise exception.InvalidSnapshot(reason=msg)
previous_status = volume['status']
host = self._get_available_backup_service_host(
None, volume.availability_zone,
volume_utils.extract_host(volume.host, 'host'))
# Reserve a quota before setting volume status and backup status
try:
reserve_opts = {'backups': 1,
'backup_gigabytes': volume['size']}
reservations = QUOTAS.reserve(context, **reserve_opts)
except exception.OverQuota as e:
overs = e.kwargs['overs']
usages = e.kwargs['usages']
quotas = e.kwargs['quotas']
def _consumed(resource_name):
return (usages[resource_name]['reserved'] +
usages[resource_name]['in_use'])
for over in overs:
if 'gigabytes' in over:
msg = _LW("Quota exceeded for %(s_pid)s, tried to create "
"%(s_size)sG backup (%(d_consumed)dG of "
"%(d_quota)dG already consumed)")
LOG.warning(msg, {'s_pid': context.project_id,
's_size': volume['size'],
'd_consumed': _consumed(over),
'd_quota': quotas[over]})
raise exception.VolumeBackupSizeExceedsAvailableQuota(
requested=volume['size'],
consumed=_consumed('backup_gigabytes'),
quota=quotas['backup_gigabytes'])
elif 'backups' in over:
msg = _LW("Quota exceeded for %(s_pid)s, tried to create "
"backups (%(d_consumed)d backups "
"already consumed)")
LOG.warning(msg, {'s_pid': context.project_id,
'd_consumed': _consumed(over)})
raise exception.BackupLimitExceeded(
allowed=quotas[over])
# Find the latest backup and use it as the parent backup to do an
# incremental backup.
latest_backup = None
if incremental:
backups = storage.BackupList.get_all_by_volume(context.elevated(),
volume_id)
if backups.objects:
# NOTE(xyang): The 'data_timestamp' field records the time
# when the data on the volume was first saved. If it is
# a backup from volume, 'data_timestamp' will be the same
# as 'created_at' for a backup. If it is a backup from a
# snapshot, 'data_timestamp' will be the same as
# 'created_at' for a snapshot.
# If not backing up from snapshot, the backup with the latest
# 'data_timestamp' will be the parent; If backing up from
# snapshot, the backup with the latest 'data_timestamp' will
# be chosen only if 'data_timestamp' is earlier than the
# 'created_at' timestamp of the snapshot; Otherwise, the
# backup will not be chosen as the parent.
# For example, a volume has a backup taken at 8:00, then
# a snapshot taken at 8:10, and then a backup at 8:20.
# When taking an incremental backup of the snapshot, the
# parent should be the backup at 8:00, not 8:20, and the
# 'data_timestamp' of this new backup will be 8:10.
latest_backup = max(
backups.objects,
key=lambda x: x['data_timestamp']
if (not snapshot or (snapshot and x['data_timestamp']
< snapshot['created_at']))
else datetime(1, 1, 1, 1, 1, 1, tzinfo=timezone('UTC')))
else:
msg = _('No backups available to do an incremental backup.')
raise exception.InvalidBackup(reason=msg)
parent_id = None
if latest_backup:
parent_id = latest_backup.id
if latest_backup['status'] != fields.BackupStatus.AVAILABLE:
msg = _('The parent backup must be available for '
'incremental backup.')
raise exception.InvalidBackup(reason=msg)
data_timestamp = None
if snapshot_id:
snapshot = storage.Snapshot.get_by_id(context, snapshot_id)
data_timestamp = snapshot.created_at
self.db.volume_update(context, volume_id,
{'status': 'backing-up',
'previous_status': previous_status})
backup = None
try:
kwargs = {
'user_id': context.user_id,
'project_id': context.project_id,
'display_name': name,
'display_description': description,
'volume_id': volume_id,
'status': fields.BackupStatus.CREATING,
'container': container,
'parent_id': parent_id,
'size': volume['size'],
'host': host,
'snapshot_id': snapshot_id,
'data_timestamp': data_timestamp,
}
backup = storage.Backup(context=context, **kwargs)
backup.create()
if not snapshot_id:
backup.data_timestamp = backup.created_at
backup.save()
QUOTAS.commit(context, reservations)
except Exception:
with excutils.save_and_reraise_exception():
try:
if backup and 'id' in backup:
backup.destroy()
finally:
QUOTAS.rollback(context, reservations)
# TODO(DuncanT): In future, when we have a generic local attach,
# this can go via the scheduler, which enables
# better load balancing and isolation of services
self.backup_rpcapi.create_backup(context, backup)
return backup
def teardown_console(self, context, console):
"""Tears down actual proxies."""
self._rebuild_xvp_conf(context.elevated())
def setup_console(self, context, console):
"""Sets up actual proxies."""
self._rebuild_xvp_conf(context.elevated())