def unmount_target(uuid):
# This is called by the Target RA from corosync
# only unmount targets that are controlled by chroma:Target
try:
result = cibxpath("query", "//primitive")
except OSError as err:
if err.rc == errno.ENOENT:
exit(-1)
raise err
dom = ET.fromstring(result.stdout)
# Searches for <nvpair name="target" value=uuid> in
# <primitive provider="chroma" type="Target"> in dom
if (next(
(ops for res in dom.findall(".//primitive")
if res.get("provider") == "chroma" and res.get("type") == "Target"
for ops in res.findall(".//nvpair")
if ops.get("name") == "target" and ops.get("value") == uuid),
None,
) is not None):
return
dom.unlink()
info = _get_target_config(uuid)
filesystem = FileSystem(info["backfstype"], info["bdev"])
filesystem.umount()
if agent_result_is_error(export_target(info["device_type"], info["bdev"])):
exit(-1)
def unmount_target(uuid):
# This is called by the Target RA from corosync
info = _get_target_config(uuid)
filesystem = FileSystem(info['backfstype'], info['bdev'])
filesystem.umount()
if agent_result_is_error(export_target(info['device_type'], info['bdev'])):
exit(-1)
def mount_target(uuid, pacemaker_ha_operation):
# This is called by the Target RA from corosync
info = _get_target_config(uuid)
if agent_result_is_error(
import_target(info['device_type'], info['bdev'],
pacemaker_ha_operation)):
exit(-1)
filesystem = FileSystem(info['backfstype'], info['bdev'])
filesystem.mount(info['mntpt'])
(ops
for res in dom.getElementsByTagName('primitive') if res.getAttribute(
"provider") == "chroma" and res.getAttribute("type") == "Target"
for ops in res.getElementsByTagName('nvpair')
if ops.getAttribute("name") == "target"
and ops.getAttribute("value") == uuid), False):
return
dom.unlink()
info = _get_target_config(uuid)
filesystem = FileSystem(info['backfstype'], info['bdev'])
filesystem.umount()
if agent_result_is_error(export_target(info['device_type'], info['bdev'])):
exit(-1)
def import_target(device_type, path, pacemaker_ha_operation):
"""
Passed a device type and a path import the device if such an operation make sense.
For example a jbod scsi disk does not have the concept of import whilst zfs does.
:param device_type: the type of device to import
:param path: path of device to import
:param pacemaker_ha_operation: This import is at the request of pacemaker. In HA operations the
device may often have not have been cleanly exported because the previous mounted node failed
in operation.
:return: None or an Error message
"""
