def delete_volume(self, volume):
"""Delete volume.
Return ok if doesn't exist. Auto detach from all servers.
"""
# Get volume name
name = self.configuration.zadara_vol_name_template % volume['name']
vpsa_vol = self._get_vpsa_volume_name(name)
if not vpsa_vol:
msg = _('Volume %(name)s could not be found. '
'It might be already deleted') % {'name': name}
LOG.warning(msg)
if self.configuration.zadara_vpsa_allow_nonexistent_delete:
return
else:
raise exception.VolumeNotFound(volume_id=name)
# Check attachment info and detach from all
xml_tree = self.vpsa.send_cmd('list_vol_attachments',
vpsa_vol=vpsa_vol)
servers = self._xml_parse_helper(xml_tree, 'servers',
('iqn', None), first=False)
if servers:
if not self.configuration.zadara_vpsa_auto_detach_on_delete:
raise exception.VolumeAttached(volume_id=name)
for server in servers:
vpsa_srv = server.findtext('name')
if vpsa_srv:
self.vpsa.send_cmd('detach_volume',
vpsa_srv=vpsa_srv,
vpsa_vol=vpsa_vol)
# Delete volume
self.vpsa.send_cmd('delete_volume', vpsa_vol=vpsa_vol)
def delete(self, context, volume, force=False):
if context.is_admin and context.project_id != volume['project_id']:
project_id = volume['project_id']
else:
project_id = context.project_id
volume_id = volume['id']
if not volume['host']:
# NOTE(vish): scheduling failed, so delete it
# Note(zhiteng): update volume quota reservation
try:
reserve_opts = {'volumes': -1, 'gigabytes': -volume['size']}
QUOTAS.add_volume_type_opts(context, reserve_opts,
volume['volume_type_id'])
reservations = QUOTAS.reserve(context,
project_id=project_id,
**reserve_opts)
except Exception:
reservations = None
LOG.exception(_("Failed to update quota for deleting volume"))
self.db.volume_destroy(context.elevated(), volume_id)
if reservations:
QUOTAS.commit(context, reservations, project_id=project_id)
return
if not force and volume['status'] not in [
"available", "error", "error_restoring", "error_extending"
]:
msg = _("Volume status must be available or error, "
"but current status is: %s") % volume['status']
raise exception.InvalidVolume(reason=msg)
if volume['attach_status'] == "attached":
# Volume is still attached, need to detach first
raise exception.VolumeAttached(volume_id=volume_id)
if volume['migration_status'] != None:
# Volume is migrating, wait until done
msg = _("Volume cannot be deleted while migrating")
raise exception.InvalidVolume(reason=msg)
snapshots = self.db.snapshot_get_all_for_volume(context, volume_id)
if len(snapshots):
msg = _("Volume still has %d dependent snapshots") % len(snapshots)
raise exception.InvalidVolume(reason=msg)
# If the volume is encrypted, delete its encryption key from the key
# manager. This operation makes volume deletion an irreversible process
# because the volume cannot be decrypted without its key.
encryption_key_id = volume.get('encryption_key_id', None)
if encryption_key_id is not None:
self.key_manager.delete_key(context, encryption_key_id)
now = timeutils.utcnow()
self.db.volume_update(context, volume_id, {
'status': 'deleting',
'terminated_at': now
})
self.volume_rpcapi.delete_volume(context, volume)
def delete_volume(self, context, volume_id):
"""Deletes and unexports volume."""
context = context.elevated()
volume_ref = self.db.volume_get(context, volume_id)
if context.project_id != volume_ref['project_id']:
project_id = volume_ref['project_id']
else:
project_id = context.project_id
LOG.info(_("volume %s: deleting"), volume_ref['name'])
if volume_ref['attach_status'] == "attached":
# Volume is still attached, need to detach first
raise exception.VolumeAttached(volume_id=volume_id)
if volume_ref['host'] != self.host:
raise exception.InvalidVolume(
reason=_("volume is not local to this node"))
self._notify_about_volume_usage(context, volume_ref, "delete.start")
self._reset_stats()
try:
LOG.debug(_("volume %s: removing export"), volume_ref['name'])
self.driver.remove_export(context, volume_ref)
LOG.debug(_("volume %s: deleting"), volume_ref['name'])
self.driver.delete_volume(volume_ref)
except exception.VolumeIsBusy:
LOG.debug(_("volume %s: volume is busy"), volume_ref['name'])
self.driver.ensure_export(context, volume_ref)
self.db.volume_update(context, volume_ref['id'],
{'status': 'available'})
return True
except Exception:
with excutils.save_and_reraise_exception():
self.db.volume_update(context,
volume_ref['id'],
{'status': 'error_deleting'})
# Get reservations
try:
reservations = QUOTAS.reserve(context,
project_id=project_id,
volumes=-1,
gigabytes=-volume_ref['size'])
except Exception:
reservations = None
LOG.exception(_("Failed to update usages deleting volume"))
self.db.volume_glance_metadata_delete_by_volume(context, volume_id)
self.db.volume_destroy(context, volume_id)
LOG.info(_("volume %s: deleted successfully"), volume_ref['name'])
self._notify_about_volume_usage(context, volume_ref, "delete.end")
# Commit the reservations
if reservations:
QUOTAS.commit(context, reservations, project_id=project_id)
self.publish_service_capabilities(context)
return True
def delete_volume(self, volume):
LOG.info("delete_volume %s", volume)
# delete snapshot or volume from snapshot
if ('snapshot_id' not in volume) or (volume['snapshot_id']
is not None):
volume_id = volume['provider_id']
req_vars = {
'server_ip': self.server_ip,
'server_port': self.server_port
}
request = ("http://%(server_ip)s:%(server_port)s"
"/v1/osd-snapshot") % req_vars
r, response = self._execute_px_get_request(request)
LOG.info("get response %s", response)
for one in response:
if one['id'] == volume_id and 'attached_on' not in one:
self._delete_volume(volume_id)
return
elif one['id'] == volume_id:
raise exception.VolumeAttached(data=response)
LOG.info("already deleted")
return
# delete volume
else:
volume_id = volume['provider_id']
req_vars = {
'server_ip': self.server_ip,
'server_port': self.server_port,
'provider_id': volume_id
}
request = ("http://%(server_ip)s:%(server_port)s"
"/v1/osd-volumes/"
"%(provider_id)s") % req_vars
r, response = self._execute_px_get_request(request)
LOG.info("get response %s", response)
if response and 'id' in response[
0] and 'attached_on' not in response[0]:
self._delete_volume(volume_id)
return
elif not response or 'id' not in response[0]:
LOG.info("already deleted")
return
else:
raise exception.VolumeAttached(data=response)
def _assert_source_detached(self, volume):
"""The DotHill requires a volume to be dettached to clone it.
Make sure that the volume is not in use when trying to copy it.
"""
if (volume['status'] != "available"
or volume['attach_status'] == "attached"):
LOG.error(_LE("Volume must be detached for clone operation."))
raise exception.VolumeAttached(volume_id=volume['id'])
def _assert_source_detached(self, volume):
"""The MSA requires a volume to be dettached to clone it.
Make sure that the volume is not in use when trying to copy it.
"""
if volume['status'] != "available" or \
volume['attach_status'] == "attached":
msg = _("Volume must be detached to perform a clone operation.")
LOG.error(msg)
raise exception.VolumeAttached(volume_id=volume['id'])
def _delete_volume(self, vol_id):
req_vars = {
'server_ip': self.server_ip,
'server_port': self.server_port,
'provider_id': vol_id
}
request = ("http://%(server_ip)s:%(server_port)s"
"/v1/osd-volumes/"
"%(provider_id)s") % req_vars
r, response = self._execute_px_delete_request(request)
LOG.info("delete volume %s", response)
if r.status_code != http_client.OK:
raise exception.VolumeBackendAPIException(data=response)
elif 'error' in response:
raise exception.VolumeAttached(data=response)
def delete(self, context, volume, force=False):
if context.is_admin and context.project_id != volume['project_id']:
project_id = volume['project_id']
else:
project_id = context.project_id
volume_id = volume['id']
if not volume['host']:
# NOTE(vish): scheduling failed, so delete it
# Note(zhiteng): update volume quota reservation
try:
reservations = QUOTAS.reserve(context,
project_id=project_id,
volumes=-1,
gigabytes=-volume['size'])
except Exception:
reservations = None
LOG.exception(_("Failed to update quota for deleting volume"))
self.db.volume_destroy(context.elevated(), volume_id)
if reservations:
QUOTAS.commit(context, reservations, project_id=project_id)
return
if not force and volume['status'] not in [
"available", "error", "error_restoring"
]:
msg = _("Volume status must be available or error")
raise exception.InvalidVolume(reason=msg)
if volume['attach_status'] == "attached":
# Volume is still attached, need to detach first
raise exception.VolumeAttached(volume_id=volume_id)
snapshots = self.db.snapshot_get_all_for_volume(context, volume_id)
if len(snapshots):
msg = _("Volume still has %d dependent snapshots") % len(snapshots)
raise exception.InvalidVolume(reason=msg)
now = timeutils.utcnow()
self.db.volume_update(context, volume_id, {
'status': 'deleting',
'terminated_at': now
})
self.volume_rpcapi.delete_volume(context, volume)
def delete_volume(self, context, volume_id):
"""Deletes and unexports volume."""
context = context.elevated()
volume_ref = self.db.volume_get(context, volume_id)
if context.project_id != volume_ref['project_id']:
project_id = volume_ref['project_id']
else:
project_id = context.project_id
LOG.info(_("volume %s: deleting"), volume_ref['id'])
if volume_ref['attach_status'] == "attached":
# Volume is still attached, need to detach first
raise exception.VolumeAttached(volume_id=volume_id)
if volume_ref['host'] != self.host:
raise exception.InvalidVolume(
reason=_("volume is not local to this node"))
self._notify_about_volume_usage(context, volume_ref, "delete.start")
self._reset_stats()
try:
LOG.debug(_("volume %s: removing export"), volume_ref['id'])
self.driver.remove_export(context, volume_ref)
LOG.debug(_("volume %s: deleting"), volume_ref['id'])
self.driver.delete_volume(volume_ref)
except exception.VolumeIsBusy:
LOG.error(_("Cannot delete volume %s: volume is busy"),
volume_ref['id'])
self.driver.ensure_export(context, volume_ref)
self.db.volume_update(context, volume_ref['id'],
{'status': 'available'})
return True
except Exception:
with excutils.save_and_reraise_exception():
self.db.volume_update(context,
volume_ref['id'],
{'status': 'error_deleting'})
# If deleting the source volume in a migration, we want to skip quotas
# and other database updates.
if volume_ref['migration_status']:
return True
# Get reservations
try:
reserve_opts = {'volumes': -1, 'gigabytes': -volume_ref['size']}
QUOTAS.add_volume_type_opts(context,
reserve_opts,
volume_ref.get('volume_type_id'))
reservations = QUOTAS.reserve(context,
project_id=project_id,
**reserve_opts)
except Exception:
reservations = None
LOG.exception(_("Failed to update usages deleting volume"))
# Delete glance metadata if it exists
try:
self.db.volume_glance_metadata_delete_by_volume(context, volume_id)
LOG.debug(_("volume %s: glance metadata deleted"),
volume_ref['id'])
except exception.GlanceMetadataNotFound:
LOG.debug(_("no glance metadata found for volume %s"),
volume_ref['id'])
self.db.volume_destroy(context, volume_id)
LOG.info(_("volume %s: deleted successfully"), volume_ref['id'])
self._notify_about_volume_usage(context, volume_ref, "delete.end")
# Commit the reservations
if reservations:
QUOTAS.commit(context, reservations, project_id=project_id)
self.publish_service_capabilities(context)
return True
def _assert_source_detached(self, volume):
"""The array requires volume to be detached before cloning."""
if (volume['status'] != "available" or volume['attach_status']
== fields.VolumeAttachStatus.ATTACHED):
LOG.error("Volume must be detached for clone operation.")
raise exception.VolumeAttached(volume_id=volume['id'])
def stub_volume_attached(self, context, volume, force=False):
raise exception.VolumeAttached(volume_id=volume['id'])
