def manage_existing_get_size(self, volume, existing_ref):
"""Return size of the volume to be managed by manage_existing."""
existing_vol_name = self._get_existing_vol_name(existing_ref)
# The ZFSSA NFS driver only has one mounted share.
local_share_mount = self._get_mount_point_for_share(
self._mounted_shares[0])
local_vol_path = os.path.join(local_share_mount, existing_vol_name)
try:
if os.path.isfile(local_vol_path):
size = int(
math.ceil(
float(utils.get_file_size(local_vol_path)) / units.Gi))
except (OSError, ValueError):
err_msg = (_("Failed to get size of existing volume: %(vol)s. "
"Volume Manage failed."), {
'vol': existing_vol_name
})
LOG.error(err_msg)
raise exception.VolumeBackendAPIException(data=err_msg)
LOG.debug("Size volume: %(vol)s to be migrated is: %(size)s.", {
'vol': existing_vol_name,
'size': size
})
return size
def manage_existing_get_size(self, volume, existing_vol_ref):
"""Returns the size of volume to be managed by manage_existing.
When calculating the size, round up to the next GB.
:param volume: Cinder volume to manage
:param existing_vol_ref: Existing volume to take under management
"""
# Attempt to find NFS share, NFS mount, and volume path from vol_ref.
(nfs_share, nfs_mount, vol_path) = \
self._get_share_mount_and_vol_from_vol_ref(existing_vol_ref)
try:
LOG.debug("Asked to get size of NFS vol_ref %s.",
existing_vol_ref['source-name'])
file_path = os.path.join(nfs_mount, vol_path)
file_size = float(utils.get_file_size(file_path)) / units.Gi
vol_size = int(math.ceil(file_size))
except (OSError, ValueError):
exception_message = (_("Failed to manage existing volume "
"%(name)s, because of error in getting "
"volume size."),
{'name': existing_vol_ref['source-name']})
raise exception.VolumeBackendAPIException(data=exception_message)
LOG.debug("Reporting size of NFS volume ref %(ref)s as %(size)d GB.",
{'ref': existing_vol_ref['source-name'], 'size': vol_size})
return vol_size
def manage_existing_get_size(self, volume, existing_vol_ref):
"""Returns the size of volume to be managed by manage_existing.
When calculating the size, round up to the next GB.
:param volume: Cinder volume to manage
:param existing_vol_ref: Existing volume to take under management
"""
# Attempt to find NFS share, NFS mount, and volume path from vol_ref.
(nfs_share, nfs_mount, vol_path) = \
self._get_share_mount_and_vol_from_vol_ref(existing_vol_ref)
try:
LOG.debug("Asked to get size of NFS vol_ref %s.",
existing_vol_ref['source-name'])
file_path = os.path.join(nfs_mount, vol_path)
file_size = float(utils.get_file_size(file_path)) / units.Gi
vol_size = int(math.ceil(file_size))
except (OSError, ValueError):
exception_message = (_("Failed to manage existing volume "
"%(name)s, because of error in getting "
"volume size."),
{'name': existing_vol_ref['source-name']})
raise exception.VolumeBackendAPIException(data=exception_message)
LOG.debug("Reporting size of NFS volume ref %(ref)s as %(size)d GB.",
{'ref': existing_vol_ref['source-name'], 'size': vol_size})
return vol_size
def _manage_existing_get_size(self, existing_ref):
# Attempt to find NFS share, NFS mount, and path from vol_ref.
(nfs_share, nfs_mount,
path) = self._get_share_mount_and_vol_from_vol_ref(existing_ref)
try:
LOG.debug("Asked to get size of NFS ref %(ref)s.",
{'ref': existing_ref['source-name']})
file_path = os.path.join(nfs_mount, path)
file_size = float(cutils.get_file_size(file_path)) / units.Gi
# Round up to next Gb
size = int(math.ceil(file_size))
except (OSError, ValueError):
exception_message = (_("Failed to manage existing volume/snapshot "
"%(name)s, because of error in getting "
"its size."), {
'name': existing_ref['source-name']
})
LOG.exception(exception_message)
raise exception.VolumeBackendAPIException(data=exception_message)
LOG.debug("Reporting size of NFS ref %(ref)s as %(size)d GB.", {
'ref': existing_ref['source-name'],
'size': size
})
return size
def _manage_existing_get_size(self, existing_ref):
# Attempt to find NFS share, NFS mount, and path from vol_ref.
(nfs_share, nfs_mount, path
) = self._get_share_mount_and_vol_from_vol_ref(existing_ref)
try:
LOG.debug("Asked to get size of NFS ref %(ref)s.",
{'ref': existing_ref['source-name']})
file_path = os.path.join(nfs_mount, path)
file_size = float(cutils.get_file_size(file_path)) / units.Gi
# Round up to next Gb
size = int(math.ceil(file_size))
except (OSError, ValueError):
exception_message = (_("Failed to manage existing volume/snapshot "
"%(name)s, because of error in getting "
"its size."),
{'name': existing_ref['source-name']})
LOG.exception(exception_message)
raise exception.VolumeBackendAPIException(data=exception_message)
LOG.debug("Reporting size of NFS ref %(ref)s as %(size)d GB.",
{'ref': existing_ref['source-name'], 'size': size})
return size
def test_get_file_size(self, mock_stat):
class stat_result(object):
st_mode = 0o777
st_size = 1074253824
test_file = '/var/tmp/made_up_file'
mock_stat.return_value = stat_result
size = utils.get_file_size(test_file)
self.assertEqual(size, stat_result.st_size)
mock_stat.assert_called_once_with(test_file)
def test_get_file_size(self, mock_stat):
class stat_result(object):
st_mode = 0o777
st_size = 1074253824
test_file = '/var/tmp/made_up_file'
mock_stat.return_value = stat_result
size = utils.get_file_size(test_file)
self.assertEqual(size, stat_result.st_size)
mock_stat.assert_called_once_with(test_file)
def manage_existing_get_size(self, volume, existing_ref):
"""Returns size of volume to be managed by manage_existing.
When calculating the size, round up to the next GB.
:param volume: Cinder volume to manage
:param existing_ref: Driver-specific information used to identify a
volume
"""
nfs_share, nfs_mount, volume_name = self._get_share_mount(existing_ref)
try:
volume_path = os.path.join(nfs_mount, volume_name)
vol_size = math.ceil(float(utils.get_file_size(volume_path)) /
units.Gi)
except OSError:
msg = (_('Failed to get size of volume %s') %
existing_ref['source-name'])
raise exception.VolumeDriverException(msg)
return vol_size
def manage_existing_get_size(self, volume, existing_ref):
"""Returns size of volume to be managed by manage_existing.
When calculating the size, round up to the next GB.
:param volume: Cinder volume to manage
:param existing_ref: Driver-specific information used to identify a
volume
"""
nfs_share, nfs_mount, volume_name = self._get_share_mount(existing_ref)
try:
volume_path = os.path.join(nfs_mount, volume_name)
vol_size = int(math.ceil(float(utils.get_file_size(volume_path)) /
units.Gi))
except OSError:
msg = (_('Failed to get size of volume %s') %
existing_ref['source-name'])
raise exception.VolumeDriverException(msg)
return vol_size
def manage_existing_get_size(self, volume, existing_ref):
"""Return size of the volume to be managed by manage_existing."""
existing_vol_name = self._get_existing_vol_name(existing_ref)
# The ZFSSA NFS driver only has one mounted share.
local_share_mount = self._get_mount_point_for_share(
self._mounted_shares[0])
local_vol_path = os.path.join(local_share_mount, existing_vol_name)
try:
if os.path.isfile(local_vol_path):
size = int(math.ceil(float(
utils.get_file_size(local_vol_path)) / units.Gi))
except (OSError, ValueError):
err_msg = (_("Failed to get size of existing volume: %(vol). "
"Volume Manage failed."), {'vol': existing_vol_name})
LOG.error(err_msg)
raise exception.VolumeBackendAPIException(data=err_msg)
LOG.debug("Size volume: %(vol)s to be migrated is: %(size)s.",
{'vol': existing_vol_name, 'size': size})
return size
def _get_file_size(self, file_path):
file_size = float(cutils.get_file_size(file_path)) / units.Gi
# Round up to next Gb
return int(math.ceil(file_size))
def _get_file_size(self, file_path):
file_size = float(cutils.get_file_size(file_path)) / units.Gi
# Round up to next Gb
return int(math.ceil(file_size))
When calculating the size, round up to the next GB.
:param volume: Cinder volume to manage
:param existing_vol_ref: Existing volume to take under management
"""
# Attempt to find NFS share, NFS mount, and volume path from vol_ref.
(nfs_share, nfs_mount, vol_path) = \
self._get_share_mount_and_vol_from_vol_ref(existing_vol_ref)
try:
LOG.debug("Asked to get size of NFS vol_ref %s.",
existing_vol_ref['source-name'])
file_path = os.path.join(nfs_mount, vol_path)
file_size = float(utils.get_file_size(file_path)) / units.Gi
vol_size = int(math.ceil(file_size))
except (OSError, ValueError):
exception_message = (_("Failed to manage existing volume "
"%(name)s, because of error in getting "
"volume size."),
{'name': existing_vol_ref['source-name']})
raise exception.VolumeBackendAPIException(data=exception_message)
LOG.debug("Reporting size of NFS volume ref %(ref)s as %(size)d GB.",
{'ref': existing_vol_ref['source-name'], 'size': vol_size})
return vol_size
def unmanage(self, volume):
"""Removes the specified volume from Cinder management.