def delete(self, context, group, delete_volumes=False):
if not group.host:
self.update_quota(context, group, -1, group.project_id)
LOG.debug("No host for group %s. Deleting from "
"the database.", group.id)
group.destroy()
return
group.assert_not_frozen()
if not delete_volumes and group.status not in (
[c_fields.GroupStatus.AVAILABLE,
c_fields.GroupStatus.ERROR]):
msg = _("Group status must be available or error, "
"but current status is: %s") % group.status
raise exception.InvalidGroup(reason=msg)
# NOTE(tommylikehu): Admin context is required to load group snapshots.
with group.obj_as_admin():
if group.group_snapshots:
raise exception.InvalidGroup(
reason=_("Group has existing snapshots."))
volumes = self.db.volume_get_all_by_generic_group(context.elevated(),
group.id)
if volumes and not delete_volumes:
msg = (_("Group %s still contains volumes. "
"The delete-volumes flag is required to delete it.")
% group.id)
LOG.error(msg)
raise exception.InvalidGroup(reason=msg)
volumes_model_update = []
for volume in volumes:
if volume['attach_status'] == "attached":
msg = _("Volume in group %s is attached. "
"Need to detach first.") % group.id
LOG.error(msg)
raise exception.InvalidGroup(reason=msg)
snapshots = objects.SnapshotList.get_all_for_volume(context,
volume['id'])
if snapshots:
msg = _("Volume in group still has "
"dependent snapshots.")
LOG.error(msg)
raise exception.InvalidGroup(reason=msg)
volumes_model_update.append({'id': volume['id'],
'status': 'deleting'})
self.db.volumes_update(context, volumes_model_update)
group.status = c_fields.GroupStatus.DELETING
group.terminated_at = timeutils.utcnow()
group.save()
self.volume_rpcapi.delete_group(context, group)
def enable_replication(self, context, group):
self._check_type(group)
valid_status = [c_fields.GroupStatus.AVAILABLE]
if group.status not in valid_status:
params = {'valid': valid_status,
'current': group.status,
'id': group.id}
msg = _("Group %(id)s status must be %(valid)s, "
"but current status is: %(current)s. "
"Cannot enable replication.") % params
LOG.error(msg)
raise exception.InvalidGroup(reason=msg)
valid_rep_status = [c_fields.ReplicationStatus.DISABLED,
c_fields.ReplicationStatus.ENABLED]
if group.replication_status not in valid_rep_status:
params = {'valid': valid_rep_status,
'current': group.replication_status,
'id': group.id}
msg = _("Group %(id)s replication status must be %(valid)s, "
"but current status is: %(current)s. "
"Cannot enable replication.") % params
LOG.error(msg)
raise exception.InvalidGroup(reason=msg)
volumes = objects.VolumeList.get_all_by_generic_group(
context.elevated(), group.id)
valid_status = ['available', 'in-use']
for vol in volumes:
if vol.status not in valid_status:
params = {'valid': valid_status,
'current': vol.status,
'id': vol.id}
msg = _("Volume %(id)s status must be %(valid)s, "
"but current status is: %(current)s. "
"Cannot enable replication.") % params
LOG.error(msg)
raise exception.InvalidVolume(reason=msg)
# replication_status could be set to enabled when volume is
# created and the mirror is built.
if vol.replication_status not in valid_rep_status:
params = {'valid': valid_rep_status,
'current': vol.replication_status,
'id': vol.id}
msg = _("Volume %(id)s replication status must be %(valid)s, "
"but current status is: %(current)s. "
"Cannot enable replication.") % params
LOG.error(msg)
raise exception.InvalidVolume(reason=msg)
vol.replication_status = c_fields.ReplicationStatus.ENABLING
vol.save()
group.replication_status = c_fields.ReplicationStatus.ENABLING
group.save()
self.volume_rpcapi.enable_replication(context, group)
def disable_replication(self, context, group):
self._check_type(group)
valid_status = [
c_fields.GroupStatus.AVAILABLE, c_fields.GroupStatus.ERROR
]
if group.status not in valid_status:
params = {
'valid': valid_status,
'current': group.status,
'id': group.id
}
msg = _("Group %(id)s status must be %(valid)s, "
"but current status is: %(current)s. "
"Cannot disable replication.") % params
LOG.error(msg)
raise exception.InvalidGroup(reason=msg)
valid_rep_status = [
c_fields.ReplicationStatus.ENABLED,
c_fields.ReplicationStatus.ERROR
]
if group.replication_status not in valid_rep_status:
params = {
'valid': valid_rep_status,
'current': group.replication_status,
'id': group.id
}
msg = _("Group %(id)s replication status must be %(valid)s, "
"but current status is: %(current)s. "
"Cannot disable replication.") % params
LOG.error(msg)
raise exception.InvalidGroup(reason=msg)
volumes = objects.VolumeList.get_all_by_generic_group(
context.elevated(), group.id)
for vol in volumes:
if vol.replication_status not in valid_rep_status:
params = {
'valid': valid_rep_status,
'current': vol.replication_status,
'id': vol.id
}
msg = _("Volume %(id)s replication status must be %(valid)s, "
"but current status is: %(current)s. "
"Cannot disable replication.") % params
LOG.error(msg)
raise exception.InvalidVolume(reason=msg)
vol.replication_status = c_fields.ReplicationStatus.DISABLING
vol.save()
group.replication_status = c_fields.ReplicationStatus.DISABLING
group.save()
self.volume_rpcapi.disable_replication(context, group)
def _get_infinidat_cg(self, cinder_group):
group_name = self._make_cg_name(cinder_group)
infinidat_cg = self._system.cons_groups.safe_get(name=group_name)
if infinidat_cg is None:
msg = _('Consistency group "%s" not found') % group_name
LOG.error(msg)
raise exception.InvalidGroup(message=msg)
return infinidat_cg
def create_from_src(self, context, name, description=None,
group_snapshot_id=None, source_group_id=None):
check_policy(context, 'create')
kwargs = {
'user_id': context.user_id,
'project_id': context.project_id,
'status': c_fields.GroupStatus.CREATING,
'name': name,
'description': description,
'group_snapshot_id': group_snapshot_id,
'source_group_id': source_group_id,
}
group = None
try:
group = objects.Group(context=context, **kwargs)
group.create(group_snapshot_id=group_snapshot_id,
source_group_id=source_group_id)
except exception.GroupNotFound:
with excutils.save_and_reraise_exception():
LOG.error(_LE("Source Group %(source_group)s not found when "
"creating group %(group)s from "
"source."),
{'group': name, 'source_group': source_group_id})
except exception.GroupSnapshotNotFound:
with excutils.save_and_reraise_exception():
LOG.error(_LE("Group snapshot %(group_snap)s not found when "
"creating group %(group)s from source."),
{'group': name, 'group_snap': group_snapshot_id})
except Exception:
with excutils.save_and_reraise_exception():
LOG.error(_LE("Error occurred when creating group"
" %(group)s from group_snapshot %(grp_snap)s."),
{'group': name, 'grp_snap': group_snapshot_id})
# Update quota for groups
self.update_quota(context, group, 1)
if not group.host:
msg = _("No host to create group %s.") % group.id
LOG.error(msg)
raise exception.InvalidGroup(reason=msg)
if group_snapshot_id:
self._create_group_from_group_snapshot(context, group,
group_snapshot_id)
elif source_group_id:
self._create_group_from_source_group(context, group,
source_group_id)
return group
def update(self, context, group, name, description, add_volumes,
remove_volumes):
"""Update group."""
if group.status != c_fields.GroupStatus.AVAILABLE:
msg = _("Group status must be available, "
"but current status is: %s.") % group.status
raise exception.InvalidGroup(reason=msg)
add_volumes_list = []
remove_volumes_list = []
if add_volumes:
add_volumes = add_volumes.strip(',')
add_volumes_list = add_volumes.split(',')
if remove_volumes:
remove_volumes = remove_volumes.strip(',')
remove_volumes_list = remove_volumes.split(',')
invalid_uuids = []
for uuid in add_volumes_list:
if uuid in remove_volumes_list:
invalid_uuids.append(uuid)
if invalid_uuids:
msg = _("UUIDs %s are in both add and remove volume "
"list.") % invalid_uuids
raise exception.InvalidVolume(reason=msg)
volumes = self.db.volume_get_all_by_generic_group(context, group.id)
# Validate name.
if name == group.name:
name = None
# Validate description.
if description == group.description:
description = None
# Validate volumes in add_volumes and remove_volumes.
add_volumes_new = ""
remove_volumes_new = ""
if add_volumes_list:
add_volumes_new = self._validate_add_volumes(
context, volumes, add_volumes_list, group)
if remove_volumes_list:
remove_volumes_new = self._validate_remove_volumes(
volumes, remove_volumes_list, group)
if (name is None and description is None and not add_volumes_new
and not remove_volumes_new):
msg = (_("Cannot update group %(group_id)s "
"because no valid name, description, add_volumes, "
"or remove_volumes were provided.") % {
'group_id': group.id
})
raise exception.InvalidGroup(reason=msg)
fields = {'updated_at': timeutils.utcnow()}
# Update name and description in db now. No need to
# to send them over through an RPC call.
if name is not None:
fields['name'] = name
if description is not None:
fields['description'] = description
if not add_volumes_new and not remove_volumes_new:
# Only update name or description. Set status to available.
fields['status'] = 'available'
else:
fields['status'] = 'updating'
group.update(fields)
group.save()
# Do an RPC call only if the update request includes
# adding/removing volumes. add_volumes_new and remove_volumes_new
# are strings of volume UUIDs separated by commas with no spaces
# in between.
if add_volumes_new or remove_volumes_new:
self.volume_rpcapi.update_group(context,
group,
add_volumes=add_volumes_new,
remove_volumes=remove_volumes_new)
def _create_group_from_source_group(self, context, group, source_group_id):
try:
source_group = objects.Group.get_by_id(context, source_group_id)
source_vols = objects.VolumeList.get_all_by_generic_group(
context, source_group.id)
if not source_vols:
msg = _("Source Group is empty. No group " "will be created.")
raise exception.InvalidGroup(reason=msg)
for source_vol in source_vols:
kwargs = {}
kwargs['availability_zone'] = group.availability_zone
kwargs['source_group'] = source_group
kwargs['group'] = group
kwargs['source_volume'] = source_vol
volume_type_id = source_vol.volume_type_id
if volume_type_id:
kwargs['volume_type'] = volume_types.get_volume_type(
context, volume_type_id)
# Create group volume_type mapping entries
try:
db.group_volume_type_mapping_create(
context, group.id, volume_type_id)
except exception.GroupVolumeTypeMappingExists:
# Only need to create one group volume_type mapping
# entry for the same combination, skipping.
LOG.info(
_LI("A mapping entry already exists for group"
" %(grp)s and volume type %(vol_type)s. "
"Do not need to create again."), {
'grp': group.id,
'vol_type': volume_type_id
})
pass
# Since source_group is passed in, the following call will
# create a db entry for the volume, but will not call the
# volume manager to create a real volume in the backend yet.
# If error happens, taskflow will handle rollback of quota
# and removal of volume entry in the db.
try:
self.volume_api.create(context, source_vol.size, None,
None, **kwargs)
except exception.CinderException:
with excutils.save_and_reraise_exception():
LOG.error(
_LE("Error occurred when creating cloned "
"volume in the process of creating "
"group %(group)s from "
"source group %(source_group)s."), {
'group': group.id,
'source_group': source_group.id
})
except Exception:
with excutils.save_and_reraise_exception():
try:
group.destroy()
finally:
LOG.error(
_LE("Error occurred when creating "
"group %(group)s from source group "
"%(source_group)s."), {
'group': group.id,
'source_group': source_group.id
})
volumes = objects.VolumeList.get_all_by_generic_group(
context, group.id)
for vol in volumes:
# Update the host field for the volume.
vol.host = group.host
vol.save()
self.volume_rpcapi.create_group_from_src(context, group, None,
source_group)
def create_from_src(self,
context,
name,
description=None,
group_snapshot_id=None,
source_group_id=None):
check_policy(context, 'create')
# Populate group_type_id and volume_type_ids
group_type_id = None
volume_type_ids = []
if group_snapshot_id:
grp_snap = self.get_group_snapshot(context, group_snapshot_id)
group_type_id = grp_snap.group_type_id
grp_snap_src_grp = self.get(context, grp_snap.group_id)
volume_type_ids = [vt.id for vt in grp_snap_src_grp.volume_types]
elif source_group_id:
source_group = self.get(context, source_group_id)
group_type_id = source_group.group_type_id
volume_type_ids = [vt.id for vt in source_group.volume_types]
kwargs = {
'user_id': context.user_id,
'project_id': context.project_id,
'status': c_fields.GroupStatus.CREATING,
'name': name,
'description': description,
'group_snapshot_id': group_snapshot_id,
'source_group_id': source_group_id,
'group_type_id': group_type_id,
'volume_type_ids': volume_type_ids,
'replication_status': c_fields.ReplicationStatus.DISABLED
}
group = None
try:
group = objects.Group(context=context, **kwargs)
group.create(group_snapshot_id=group_snapshot_id,
source_group_id=source_group_id)
except exception.GroupNotFound:
with excutils.save_and_reraise_exception():
LOG.error(
"Source Group %(source_group)s not found when "
"creating group %(group)s from source.", {
'group': name,
'source_group': source_group_id
})
except exception.GroupSnapshotNotFound:
with excutils.save_and_reraise_exception():
LOG.error(
"Group snapshot %(group_snap)s not found when "
"creating group %(group)s from source.", {
'group': name,
'group_snap': group_snapshot_id
})
except Exception:
with excutils.save_and_reraise_exception():
LOG.error(
"Error occurred when creating group"
" %(group)s from group_snapshot %(grp_snap)s.", {
'group': name,
'grp_snap': group_snapshot_id
})
# Update quota for groups
self.update_quota(context, group, 1)
if not group.host:
msg = _("No host to create group %s.") % group.id
LOG.error(msg)
raise exception.InvalidGroup(reason=msg)
group.assert_not_frozen()
if group_snapshot_id:
self._create_group_from_group_snapshot(context, group,
group_snapshot_id)
elif source_group_id:
self._create_group_from_source_group(context, group,
source_group_id)
return group
def failover_replication(self,
context,
group,
allow_attached_volume=False,
secondary_backend_id=None):
self._check_type(group)
valid_status = [c_fields.GroupStatus.AVAILABLE]
if group.status not in valid_status:
params = {
'valid': valid_status,
'current': group.status,
'id': group.id
}
msg = _("Group %(id)s status must be %(valid)s, "
"but current status is: %(current)s. "
"Cannot failover replication.") % params
LOG.error(msg)
raise exception.InvalidGroup(reason=msg)
valid_rep_status = [
c_fields.ReplicationStatus.ENABLED,
c_fields.ReplicationStatus.FAILED_OVER
]
if group.replication_status not in valid_rep_status:
params = {
'valid': valid_rep_status,
'current': group.replication_status,
'id': group.id
}
msg = _("Group %(id)s replication status must be %(valid)s, "
"but current status is: %(current)s. "
"Cannot failover replication.") % params
LOG.error(msg)
raise exception.InvalidGroup(reason=msg)
volumes = objects.VolumeList.get_all_by_generic_group(
context.elevated(), group.id)
valid_status = ['available', 'in-use']
for vol in volumes:
if vol.status not in valid_status:
params = {
'valid': valid_status,
'current': vol.status,
'id': vol.id
}
msg = _("Volume %(id)s status must be %(valid)s, "
"but current status is: %(current)s. "
"Cannot failover replication.") % params
LOG.error(msg)
raise exception.InvalidVolume(reason=msg)
if vol.status == 'in-use' and not allow_attached_volume:
msg = _("Volume %s is attached but allow_attached_volume flag "
"is False. Cannot failover replication.") % vol.id
LOG.error(msg)
raise exception.InvalidVolume(reason=msg)
if vol.replication_status not in valid_rep_status:
params = {
'valid': valid_rep_status,
'current': vol.replication_status,
'id': vol.id
}
msg = _("Volume %(id)s replication status must be %(valid)s, "
"but current status is: %(current)s. "
"Cannot failover replication.") % params
LOG.error(msg)
raise exception.InvalidVolume(reason=msg)
vol.replication_status = c_fields.ReplicationStatus.FAILING_OVER
vol.save()
group.replication_status = c_fields.ReplicationStatus.FAILING_OVER
group.save()
self.volume_rpcapi.failover_replication(context, group,
allow_attached_volume,
secondary_backend_id)