def _copy_image_file_from_host(self, remote_source_path,
local_dest_dir, compress=False):
"""
Copy a file from IVM to the nova-compute host,
and return the location of the copy
:param remote_source_path remote source file path
:param local_dest_dir local destination directory
:param compress: if True, compress the file before transfer;
if False (default), copy the file as is
"""
temp_str = common.aix_path_join(local_dest_dir,
os.path.basename(remote_source_path))
local_file_path = temp_str + '.gz'
if compress:
copy_from_path = remote_source_path + '.gz'
else:
copy_from_path = remote_source_path
if compress:
# Gzip the file
cmd = "/usr/bin/gzip %s" % remote_source_path
self.run_vios_command_as_root(cmd)
# Cleanup uncompressed remote file
cmd = "/usr/bin/rm -f %s" % remote_source_path
self.run_vios_command_as_root(cmd)
# Get file checksum
output = self._md5sum_remote_file(copy_from_path)
if not output:
LOG.error(_("Unable to get checksum"))
msg_args = {'file_path': copy_from_path}
raise exception.IBMPowerVMFileTransferFailed(**msg_args)
else:
source_chksum = output.split(' ')[0]
# Copy file to host
# common.scp_command(self.connection_data,
# local_file_path,
# copy_from_path,
# 'get')
cp_cmd = 'cp' + ' -f ' + copy_from_path + ' ' + local_file_path
self.run_vios_command(cp_cmd)
# Calculate copied image checksum
dest_chksum = self._checksum_local_file(local_file_path)
# do comparison
if source_chksum and dest_chksum != source_chksum:
LOG.error(_("Image checksums do not match"))
raise exception.IBMPowerVMFileTransferFailed(
file_path=local_file_path)
# Cleanup transferred remote file
cmd = "/usr/bin/rm -f %s" % copy_from_path
output = self.run_vios_command_as_root(cmd)
return local_file_path
def _copy_compressed_image_file_from_host(self, device_name,
remote_source_path,
local_dest_dir, compress=False):
"""
Copy a file from IVM to the nova-compute host,
and return the location of the copy
:param device_name device name to copy from
:param remote_source_path remote source file path
:param local_dest_dir local destination directory
:param compress: if True, compress the file before transfer;
if False (default), copy the file as is
"""
temp_str = common.aix_path_join(local_dest_dir,
os.path.basename(remote_source_path))
local_file_path = temp_str + '.gz'
if compress:
copy_from_path = remote_source_path + '.gz'
else:
copy_from_path = remote_source_path
try:
try:
cmd = 'dd if=/dev/%s bs=1024k | /usr/bin/gzip -c > %s ' % (
device_name, copy_from_path)
# self.run_vios_command_as_root(cmd)
self.pvm_operator.run_vios_command_as_root_with_shell(cmd)
except Exception as e:
# dd command failed, raise an exception.
free_staging_mb = self.pvm_operator.\
get_staging_free_space()
raise exception.IBMPowerVMInsufficientStagingMemory(
operation='command - dd', free=free_staging_mb)
# Get file checksum
output = self._md5sum_remote_file(copy_from_path)
if not output:
LOG.error(_("Unable to get checksum"))
msg_args = {'file_path': copy_from_path}
raise exception.IBMPowerVMFileTransferFailed(**msg_args)
else:
source_chksum = output.split(' ')[0]
# calculate file capture_file_size of copy_from_path.
# Calculate file capture_file_size in multiples of 512 bytes |awk '{print $4}'
output = self.run_vios_command("ls -o %s" % copy_from_path, check_exit_code=False)
if output:
out = output[0].split()
capture_file_size = int(out[3])
else:
LOG.error(_("Copy compressed file failed, since"
" file %s not found") % copy_from_path)
raise exception.IBMPowerVMFileTransferFailed(
filepath=copy_from_path)
if (capture_file_size % 512 != 0):
capture_file_size = (int(capture_file_size / 512) + 1) * 512
# check if required space is available on Management Server.
# raise an exception if capture_file_size is a constraint.
self._check_space(local_dest_dir, capture_file_size * 2)
# Copy file to host
# common.scp_command(self.connection_data,
# local_file_path,
# copy_from_path,
# 'get')
cp_cmd = 'cp' + ' -f ' + copy_from_path + ' ' + local_file_path
self.run_vios_command(cp_cmd)
# Calculate copied image checksum
dest_chksum = self._checksum_local_file(local_file_path)
# do comparison
if source_chksum and dest_chksum != source_chksum:
LOG.error(_("Image checksums do not match"))
raise exception.IBMPowerVMFileTransferFailed(
file_path=local_file_path)
finally:
# Cleanup transferred remote file
cmd = "/usr/bin/rm -f %s" % copy_from_path
output = self.run_vios_command_as_root(cmd)
# return capture_file_size to calling function
return local_file_path, capture_file_size
