def _invoke_7mode_iterator_getter(self,
start_api_name,
next_api_name,
end_api_name,
record_container_tag_name,
maximum=100):
"""Invoke a 7-mode iterator-style getter API."""
data = []
start_api = netapp_api.NaElement(start_api_name)
start_result = self.connection.invoke_successfully(start_api)
tag = start_result.get_child_content('tag')
if not tag:
return data
try:
while True:
next_api = netapp_api.NaElement(next_api_name)
next_api.add_new_child('tag', tag)
next_api.add_new_child('maximum', six.text_type(maximum))
next_result = self.connection.invoke_successfully(next_api)
records = next_result.get_child_content('records') or 0
if int(records) == 0:
break
record_container = next_result.get_child_by_name(
record_container_tag_name) or netapp_api.NaElement('none')
data.extend(record_container.get_children())
finally:
end_api = netapp_api.NaElement(end_api_name)
end_api.add_new_child('tag', tag)
self.connection.invoke_successfully(end_api)
return data
def _wait_for_clone_finish(self, clone_op_id, vol_uuid):
"""Waits till a clone operation is complete or errored out."""
clone_ls_st = netapp_api.NaElement('clone-list-status')
clone_id = netapp_api.NaElement('clone-id')
clone_ls_st.add_child_elem(clone_id)
clone_id.add_node_with_children(
'clone-id-info', **{
'clone-op-id': clone_op_id,
'volume-uuid': vol_uuid
})
task_running = True
while task_running:
result = self.connection.invoke_successfully(clone_ls_st,
enable_tunneling=True)
status = result.get_child_by_name('status')
ops_info = status.get_children()
if ops_info:
state = ops_info[0].get_child_content('clone-state')
if state == 'completed':
task_running = False
elif state == 'failed':
code = ops_info[0].get_child_content('error')
reason = ops_info[0].get_child_content('reason')
raise netapp_api.NaApiError(code, reason)
else:
time.sleep(1)
else:
raise netapp_api.NaApiError(
'UnknownCloneId',
'No clone operation for clone id %s found on the filer' %
(clone_id))
def get_lun_map(self, path):
"""Gets the LUN map by LUN path."""
tag = None
map_list = []
while True:
lun_map_iter = netapp_api.NaElement('lun-map-get-iter')
lun_map_iter.add_new_child('max-records', '100')
if tag:
lun_map_iter.add_new_child('tag', tag, True)
query = netapp_api.NaElement('query')
lun_map_iter.add_child_elem(query)
query.add_node_with_children('lun-map-info', **{'path': path})
result = self.connection.invoke_successfully(lun_map_iter, True)
tag = result.get_child_content('next-tag')
if result.get_child_content('num-records') and \
int(result.get_child_content('num-records')) >= 1:
attr_list = result.get_child_by_name('attributes-list')
lun_maps = attr_list.get_children()
for lun_map in lun_maps:
lun_m = dict()
lun_m['initiator-group'] = lun_map.get_child_content(
'initiator-group')
lun_m['lun-id'] = lun_map.get_child_content('lun-id')
lun_m['vserver'] = lun_map.get_child_content('vserver')
map_list.append(lun_m)
if tag is None:
break
return map_list
def get_vol_by_junc_vserver(self, vserver, junction):
"""Gets the volume by junction path and vserver."""
vol_iter = netapp_api.NaElement('volume-get-iter')
vol_iter.add_new_child('max-records', '10')
query = netapp_api.NaElement('query')
vol_iter.add_child_elem(query)
vol_attrs = netapp_api.NaElement('volume-attributes')
query.add_child_elem(vol_attrs)
vol_attrs.add_node_with_children(
'volume-id-attributes', **{
'junction-path': junction,
'owning-vserver-name': vserver
})
des_attrs = netapp_api.NaElement('desired-attributes')
des_attrs.add_node_with_children('volume-attributes',
**{'volume-id-attributes': None})
vol_iter.add_child_elem(des_attrs)
result = self._invoke_vserver_api(vol_iter, vserver)
num_records = result.get_child_content('num-records')
if num_records and int(num_records) >= 1:
attr_list = result.get_child_by_name('attributes-list')
vols = attr_list.get_children()
vol_id = vols[0].get_child_by_name('volume-id-attributes')
return vol_id.get_child_content('name')
msg_fmt = {'vserver': vserver, 'junction': junction}
raise exception.NotFound(
_("No volume on cluster with vserver "
"%(vserver)s and junction path "
"%(junction)s ") % msg_fmt)
def get_lun_list(self):
"""Gets the list of LUNs on filer.
Gets the LUNs from cluster with vserver.
"""
luns = []
tag = None
while True:
api = netapp_api.NaElement('lun-get-iter')
api.add_new_child('max-records', '100')
if tag:
api.add_new_child('tag', tag, True)
lun_info = netapp_api.NaElement('lun-info')
lun_info.add_new_child('vserver', self.vserver)
query = netapp_api.NaElement('query')
query.add_child_elem(lun_info)
api.add_child_elem(query)
result = self.connection.invoke_successfully(api, True)
if result.get_child_by_name('num-records') and\
int(result.get_child_content('num-records')) >= 1:
attr_list = result.get_child_by_name('attributes-list')
luns.extend(attr_list.get_children())
tag = result.get_child_content('next-tag')
if tag is None:
break
return luns
def _has_luns_mapped_to_initiator(self, initiator):
"""Checks whether any LUNs are mapped to the given initiator."""
lun_list_api = netapp_api.NaElement('lun-initiator-list-map-info')
lun_list_api.add_new_child('initiator', initiator)
result = self.connection.invoke_successfully(lun_list_api, True)
lun_maps_container = result.get_child_by_name(
'lun-maps') or netapp_api.NaElement('none')
return len(lun_maps_container.get_children()) > 0
def get_cserver_zapi(server):
vserver_info = zapi.NaElement('vserver-get-iter')
query_details = zapi.NaElement.create_node_with_children(
'vserver-info', **{'vserver-type': 'admin'})
query = zapi.NaElement('query')
query.add_child_elem(query_details)
vserver_info.add_child_elem(query)
result = server.invoke_successfully(vserver_info, enable_tunneling=False)
attribute_list = result.get_child_by_name('attributes-list')
vserver_list = attribute_list.get_child_by_name('vserver-info')
return vserver_list.get_child_content('vserver-name')
def get_lun_by_args(self, **args):
"""Retrieves LUN with specified args."""
lun_iter = netapp_api.NaElement('lun-get-iter')
lun_iter.add_new_child('max-records', '100')
query = netapp_api.NaElement('query')
lun_iter.add_child_elem(query)
query.add_node_with_children('lun-info', **args)
luns = self.connection.invoke_successfully(lun_iter, True)
attr_list = luns.get_child_by_name('attributes-list')
if not attr_list:
return []
return attr_list.get_children()
def get_if_info_by_ip(self, ip):
"""Gets the network interface info by ip."""
net_if_iter = netapp_api.NaElement('net-interface-get-iter')
net_if_iter.add_new_child('max-records', '10')
query = netapp_api.NaElement('query')
net_if_iter.add_child_elem(query)
query.add_node_with_children(
'net-interface-info', **{'address': na_utils.resolve_hostname(ip)})
result = self.connection.invoke_successfully(net_if_iter, True)
num_records = result.get_child_content('num-records')
if num_records and int(num_records) >= 1:
attr_list = result.get_child_by_name('attributes-list')
return attr_list.get_children()
raise exception.NotFound(
_('No interface found on cluster for ip %s') % ip)
def ems_log_event(source,
server,
name="Ansible",
ident="12345",
version=COLLECTION_VERSION,
category="Information",
event="setup",
autosupport="false"):
ems_log = zapi.NaElement('ems-autosupport-log')
# Host name invoking the API.
ems_log.add_new_child("computer-name", name)
# ID of event. A user defined event-id, range [0..2^32-2].
ems_log.add_new_child("event-id", ident)
# Name of the application invoking the API.
ems_log.add_new_child("event-source", source)
# Version of application invoking the API.
ems_log.add_new_child("app-version", version)
# Application defined category of the event.
ems_log.add_new_child("category", category)
# Description of event to log. An application defined message to log.
ems_log.add_new_child("event-description", event)
ems_log.add_new_child("log-level", "6")
ems_log.add_new_child("auto-support", autosupport)
try:
server.invoke_successfully(ems_log, True)
except zapi.NaApiError as exc:
# Do not fail if we can't connect to the server.
# The module will report a better error when trying to get some data from ONTAP.
# Do not fail if we don't have write privileges.
if not is_zapi_connection_error(
exc.message) and not is_zapi_write_access_error(exc.message):
# raise on other errors, as it may be a bug in calling the ZAPI
raise exc
def _create_vs_get():
"""Create vs_get API request."""
vs_get = netapp_api.NaElement('vserver-get-iter')
vs_get.add_new_child('max-records', '1')
query = netapp_api.NaElement('query')
query.add_node_with_children('vserver-info',
**{'vserver-type': 'node'})
vs_get.add_child_elem(query)
desired = netapp_api.NaElement('desired-attributes')
desired.add_node_with_children(
'vserver-info', **{
'vserver-name': '',
'vserver-type': ''
})
vs_get.add_child_elem(desired)
return vs_get
def _get_vol_luns(self, vol_name):
"""Gets the LUNs for a volume."""
api = netapp_api.NaElement('lun-list-info')
if vol_name:
api.add_new_child('volume-name', vol_name)
result = self.connection.invoke_successfully(api, True)
luns = result.get_child_by_name('luns')
return luns.get_children()
def get_filer_volumes(self, volume=None):
"""Returns list of filer volumes in API format."""
vol_request = netapp_api.NaElement('volume-list-info')
res = self.connection.invoke_successfully(vol_request, True)
volumes = res.get_child_by_name('volumes')
if volumes:
return volumes.get_children()
return []
def clone_lun(self,
volume,
name,
new_name,
space_reserved='true',
qos_policy_group_name=None,
src_block=0,
dest_block=0,
block_count=0):
# zAPI can only handle 2^24 blocks per range
bc_limit = 2**24 # 8GB
# zAPI can only handle 32 block ranges per call
br_limit = 32
z_limit = br_limit * bc_limit # 256 GB
z_calls = int(math.ceil(block_count / float(z_limit)))
zbc = block_count
if z_calls == 0:
z_calls = 1
for _call in range(0, z_calls):
if zbc > z_limit:
block_count = z_limit
zbc -= z_limit
else:
block_count = zbc
clone_create = netapp_api.NaElement.create_node_with_children(
'clone-create', **{
'volume': volume,
'source-path': name,
'destination-path': new_name,
'space-reserve': space_reserved
})
if qos_policy_group_name is not None:
clone_create.add_new_child('qos-policy-group-name',
qos_policy_group_name)
if block_count > 0:
block_ranges = netapp_api.NaElement("block-ranges")
segments = int(math.ceil(block_count / float(bc_limit)))
bc = block_count
for _segment in range(0, segments):
if bc > bc_limit:
block_count = bc_limit
bc -= bc_limit
else:
block_count = bc
block_range =\
netapp_api.NaElement.create_node_with_children(
'block-range',
**{'source-block-number':
six.text_type(src_block),
'destination-block-number':
six.text_type(dest_block),
'block-count':
six.text_type(block_count)})
block_ranges.add_child_elem(block_range)
src_block += int(block_count)
dest_block += int(block_count)
clone_create.add_child_elem(block_ranges)
self.connection.invoke_successfully(clone_create, True)
def check_apis_on_cluster(self, api_list=None):
"""Checks API availability and permissions on cluster.
Checks API availability and permissions for executing user.
Returns a list of failed apis.
"""
api_list = api_list or []
failed_apis = []
if api_list:
api_version = self.connection.get_api_version()
if api_version:
major, minor = api_version
if major == 1 and minor < 20:
for api_name in api_list:
na_el = netapp_api.NaElement(api_name)
try:
self.connection.invoke_successfully(na_el)
except Exception as e:
if isinstance(e, netapp_api.NaApiError):
if (e.code == netapp_error.EAPINOTFOUND or
e.code == netapp_error.EAPIPRIVILEGE):
failed_apis.append(api_name)
elif major == 1 and minor >= 20:
failed_apis = copy.copy(api_list)
result = netapp_api.invoke_api(
self.connection,
api_name='system-user-capability-get-iter',
api_family='cm',
additional_elems=None,
is_iter=True)
for res in result:
attr_list = res.get_child_by_name('attributes-list')
if attr_list:
capabilities = attr_list.get_children()
for capability in capabilities:
op_list = capability.get_child_by_name(
'operation-list')
if op_list:
ops = op_list.get_children()
for op in ops:
apis = op.get_child_content('api-name')
if apis:
api_list = apis.split(',')
for api_name in api_list:
if (api_name
and api_name.strip()
in failed_apis):
failed_apis.remove(
api_name)
else:
continue
else:
msg = _("Unsupported Clustered Data ONTAP version.")
raise exception.VolumeBackendAPIException(data=msg)
else:
msg = _("Data ONTAP API version could not be determined.")
raise exception.VolumeBackendAPIException(data=msg)
return failed_apis
def get_volume_options(self, volume_name):
"""Get the value for the volume option."""
opts = []
vol_option_list = netapp_api.NaElement("volume-options-list-info")
vol_option_list.add_new_child('volume', volume_name)
result = self.connection.invoke_successfully(vol_option_list, True)
options = result.get_child_by_name("options")
if options:
opts = options.get_children()
return opts
def get_iscsi_service_details(self):
"""Returns iscsi iqn."""
iscsi_service_iter = netapp_api.NaElement('iscsi-service-get-iter')
result = self.connection.invoke_successfully(iscsi_service_iter, True)
if result.get_child_content('num-records') and\
int(result.get_child_content('num-records')) >= 1:
attr_list = result.get_child_by_name('attributes-list')
iscsi_service = attr_list.get_child_by_name('iscsi-service-info')
return iscsi_service.get_child_content('node-name')
LOG.debug('No iSCSI service found for vserver %s', self.vserver)
return None
def get_fc_target_wwpns(self):
"""Gets the FC target details."""
wwpns = []
port_name_list_api = netapp_api.NaElement('fcp-port-name-list-info')
result = self.connection.invoke_successfully(port_name_list_api)
port_names = result.get_child_by_name('fcp-port-names')
if port_names:
for port_name_info in port_names.get_children():
wwpn = port_name_info.get_child_content('port-name').lower()
wwpns.append(wwpn)
return wwpns
def get_ontapi_version(self, cached=True):
"""Gets the supported ontapi version."""
if cached:
return self.connection.get_api_version()
ontapi_version = netapp_api.NaElement('system-get-ontapi-version')
res = self.connection.invoke_successfully(ontapi_version, False)
major = res.get_child_content('major-version')
minor = res.get_child_content('minor-version')
return major, minor
def move_lun(self, path, new_path):
"""Moves the LUN at path to new path."""
seg = path.split("/")
new_seg = new_path.split("/")
LOG.debug("Moving LUN %(name)s to %(new_name)s.", {
'name': seg[-1],
'new_name': new_seg[-1]
})
lun_move = netapp_api.NaElement("lun-move")
lun_move.add_new_child("path", path)
lun_move.add_new_child("new-path", new_path)
self.connection.invoke_successfully(lun_move, True)
def _get_igroup_by_initiator_query(self, initiator, tag):
igroup_get_iter = netapp_api.NaElement('igroup-get-iter')
igroup_get_iter.add_new_child('max-records', '100')
if tag:
igroup_get_iter.add_new_child('tag', tag, True)
query = netapp_api.NaElement('query')
igroup_info = netapp_api.NaElement('initiator-group-info')
query.add_child_elem(igroup_info)
igroup_info.add_new_child('vserver', self.vserver)
initiators = netapp_api.NaElement('initiators')
igroup_info.add_child_elem(initiators)
igroup_get_iter.add_child_elem(query)
initiators.add_node_with_children('initiator-info',
**{'initiator-name': initiator})
# limit results to just the attributes of interest
desired_attrs = netapp_api.NaElement('desired-attributes')
desired_igroup_info = netapp_api.NaElement('initiator-group-info')
desired_igroup_info.add_node_with_children('initiators',
**{'initiator-info': None})
desired_igroup_info.add_new_child('vserver', None)
desired_igroup_info.add_new_child('initiator-group-name', None)
desired_igroup_info.add_new_child('initiator-group-type', None)
desired_igroup_info.add_new_child('initiator-group-os-type', None)
desired_attrs.add_child_elem(desired_igroup_info)
igroup_get_iter.add_child_elem(desired_attrs)
return igroup_get_iter
def _check_clone_status(self, clone_id, vol_uuid, name, new_name):
"""Checks for the job till completed."""
clone_status = netapp_api.NaElement('clone-list-status')
cl_id = netapp_api.NaElement('clone-id')
clone_status.add_child_elem(cl_id)
cl_id.add_node_with_children(
'clone-id-info', **{
'clone-op-id': clone_id,
'volume-uuid': vol_uuid
})
running = True
clone_ops_info = None
while running:
result = self.connection.invoke_successfully(clone_status, True)
status = result.get_child_by_name('status')
ops_info = status.get_children()
if ops_info:
for info in ops_info:
if info.get_child_content('clone-state') == 'running':
time.sleep(1)
break
else:
running = False
clone_ops_info = info
break
else:
if clone_ops_info:
fmt = {'name': name, 'new_name': new_name}
if clone_ops_info.get_child_content('clone-state')\
== 'completed':
LOG.debug(
"Clone operation with src %(name)s"
" and dest %(new_name)s completed", fmt)
else:
LOG.debug(
"Clone operation with src %(name)s"
" and dest %(new_name)s failed", fmt)
raise netapp_api.NaApiError(
clone_ops_info.get_child_content('error'),
clone_ops_info.get_child_content('reason'))
def get_cserver_zapi(server):
''' returns None if not run on the management or cluster IP '''
vserver_info = zapi.NaElement('vserver-get-iter')
query_details = zapi.NaElement.create_node_with_children('vserver-info', **{'vserver-type': 'admin'})
query = zapi.NaElement('query')
query.add_child_elem(query_details)
vserver_info.add_child_elem(query)
try:
result = server.invoke_successfully(vserver_info,
enable_tunneling=False)
except zapi.NaApiError as exc:
# Do not fail if we can't connect to the server.
# The module will report a better error when trying to get some data from ONTAP.
if is_zapi_connection_error(exc.message):
return None
# raise on other errors, as it may be a bug in calling the ZAPI
raise exc
attribute_list = result.get_child_by_name('attributes-list')
if attribute_list is not None:
vserver_list = attribute_list.get_child_by_name('vserver-info')
if vserver_list is not None:
return vserver_list.get_child_content('vserver-name')
return None
def get_igroup_by_initiators(self, initiator_list):
"""Get igroups exactly matching a set of initiators."""
igroup_list = []
if not initiator_list:
return igroup_list
initiator_set = set(initiator_list)
igroup_list_info = netapp_api.NaElement('igroup-list-info')
result = self.connection.invoke_successfully(igroup_list_info, True)
initiator_groups = result.get_child_by_name(
'initiator-groups') or netapp_api.NaElement('none')
for initiator_group_info in initiator_groups.get_children():
initiator_set_for_igroup = set()
initiators = initiator_group_info.get_child_by_name(
'initiators') or netapp_api.NaElement('none')
for initiator_info in initiators.get_children():
initiator_set_for_igroup.add(
initiator_info.get_child_content('initiator-name'))
if initiator_set == initiator_set_for_igroup:
igroup = {
'initiator-group-os-type':
initiator_group_info.get_child_content(
'initiator-group-os-type'),
'initiator-group-type':
initiator_group_info.get_child_content(
'initiator-group-type'),
'initiator-group-name':
initiator_group_info.get_child_content(
'initiator-group-name')
}
igroup_list.append(igroup)
return igroup_list
def get_iscsi_target_details(self):
"""Gets the iSCSI target portal details."""
iscsi_if_iter = netapp_api.NaElement('iscsi-portal-list-info')
result = self.connection.invoke_successfully(iscsi_if_iter, True)
tgt_list = []
portal_list_entries = result.get_child_by_name(
'iscsi-portal-list-entries')
if portal_list_entries:
portal_list = portal_list_entries.get_children()
for iscsi_if in portal_list:
d = dict()
d['address'] = iscsi_if.get_child_content('ip-address')
d['port'] = iscsi_if.get_child_content('ip-port')
d['tpgroup-tag'] = iscsi_if.get_child_content('tpgroup-tag')
tgt_list.append(d)
return tgt_list
def ems_log_event(source, server, name="Ansible", id="12345", version="1.1",
category="Information", event="setup", autosupport="false"):
ems_log = zapi.NaElement('ems-autosupport-log')
# Host name invoking the API.
ems_log.add_new_child("computer-name", name)
# ID of event. A user defined event-id, range [0..2^32-2].
ems_log.add_new_child("event-id", id)
# Name of the application invoking the API.
ems_log.add_new_child("event-source", source)
# Version of application invoking the API.
ems_log.add_new_child("app-version", version)
# Application defined category of the event.
ems_log.add_new_child("category", category)
# Description of event to log. An application defined message to log.
ems_log.add_new_child("event-description", event)
ems_log.add_new_child("log-level", "6")
ems_log.add_new_child("auto-support", autosupport)
server.invoke_successfully(ems_log, True)
def get_fc_target_wwpns(self):
"""Gets the FC target details."""
wwpns = []
port_name_list_api = netapp_api.NaElement('fcp-port-name-get-iter')
port_name_list_api.add_new_child('max-records', '100')
result = self.connection.invoke_successfully(port_name_list_api, True)
num_records = result.get_child_content('num-records')
if num_records and int(num_records) >= 1:
for port_name_info in result.get_child_by_name(
'attributes-list').get_children():
if port_name_info.get_child_content('is-used') != 'true':
continue
wwpn = port_name_info.get_child_content('port-name').lower()
wwpns.append(wwpn)
return wwpns
def get_iscsi_target_details(self):
"""Gets the iSCSI target portal details."""
iscsi_if_iter = netapp_api.NaElement('iscsi-interface-get-iter')
result = self.connection.invoke_successfully(iscsi_if_iter, True)
tgt_list = []
num_records = result.get_child_content('num-records')
if num_records and int(num_records) >= 1:
attr_list = result.get_child_by_name('attributes-list')
iscsi_if_list = attr_list.get_children()
for iscsi_if in iscsi_if_list:
d = dict()
d['address'] = iscsi_if.get_child_content('ip-address')
d['port'] = iscsi_if.get_child_content('ip-port')
d['tpgroup-tag'] = iscsi_if.get_child_content('tpgroup-tag')
d['interface-enabled'] = iscsi_if.get_child_content(
'is-interface-enabled')
tgt_list.append(d)
return tgt_list
def _create_ems(netapp_backend, app_version, server_type):
"""Create ems API request."""
ems_log = netapp_api.NaElement('ems-autosupport-log')
host = socket.getfqdn() or 'Cinder_node'
if server_type == "cluster":
dest = "cluster node"
else:
dest = "7 mode controller"
ems_log.add_new_child('computer-name', host)
ems_log.add_new_child('event-id', '0')
ems_log.add_new_child('event-source',
'Cinder driver %s' % netapp_backend)
ems_log.add_new_child('app-version', app_version)
ems_log.add_new_child('category', 'provisioning')
ems_log.add_new_child('event-description',
'OpenStack Cinder connected to %s' % dest)
ems_log.add_new_child('log-level', '6')
ems_log.add_new_child('auto-support', 'false')
return ems_log
def get_lun_geometry(self, path):
"""Gets the LUN geometry."""
geometry = {}
lun_geo = netapp_api.NaElement("lun-get-geometry")
lun_geo.add_new_child('path', path)
try:
result = self.connection.invoke_successfully(lun_geo, True)
geometry['size'] = result.get_child_content("size")
geometry['bytes_per_sector'] =\
result.get_child_content("bytes-per-sector")
geometry['sectors_per_track'] =\
result.get_child_content("sectors-per-track")
geometry['tracks_per_cylinder'] =\
result.get_child_content("tracks-per-cylinder")
geometry['cylinders'] =\
result.get_child_content("cylinders")
geometry['max_resize'] =\
result.get_child_content("max-resize-size")
except Exception as e:
LOG.error(_LE("LUN %(path)s geometry failed. Message - %(msg)s"), {
'path': path,
'msg': e.message
})
return geometry
