def migrate_volume(self,
lv_name,
src_host,
dest,
image_path,
instance_name=None):
"""Copy a logical volume to file, compress, and transfer
:param lv_name: logical volume device name
:param dest: destination IP or DNS name
:param image_path: path to remote image storage directory
:param instance_name: name of instance that is being migrated
:returns: file path on destination of image file that was moved
"""
if instance_name:
file_name = ''.join([instance_name, '_rsz'])
else:
file_name = ''.join([lv_name, '_rsz'])
file_path = os.path.join(image_path, file_name)
self._copy_device_to_file(lv_name, file_path)
cmds = 'gzip %s' % file_path
self.run_vios_command_as_root(cmds)
file_path = file_path + '.gz'
# If destination is not same host
# transfer file to destination VIOS system
if (src_host != dest):
with common.vios_to_vios_auth(self.connection_data.host, dest,
self.connection_data) as key_name:
cmd = ' '.join([
'scp -o "StrictHostKeyChecking no"', ('-i %s' % key_name),
file_path,
'%s@%s:%s' %
(self.connection_data.username, dest, image_path)
])
# do the remote copy
self.run_vios_command(cmd)
# cleanup local file only if transferring to remote system
# otherwise keep the file to boot from locally and clean up later
cleanup_cmd = 'rm %s' % file_path
self.run_vios_command_as_root(cleanup_cmd)
return file_path
def migrate_volume(self, lv_name, src_host, dest, image_path,
instance_name=None):
"""Copy a logical volume to file, compress, and transfer
:param lv_name: logical volume device name
:param dest: destination IP or DNS name
:param image_path: path to remote image storage directory
:param instance_name: name of instance that is being migrated
:returns: file path on destination of image file that was moved
"""
if instance_name:
file_name = ''.join([instance_name, '_rsz'])
else:
file_name = ''.join([lv_name, '_rsz'])
file_path = os.path.join(image_path, file_name)
self._copy_device_to_file(lv_name, file_path)
cmds = 'gzip %s' % file_path
self.run_vios_command_as_root(cmds)
file_path = file_path + '.gz'
# If destination is not same host
# transfer file to destination VIOS system
if (src_host != dest):
with common.vios_to_vios_auth(self.connection_data.host,
dest,
self.connection_data) as key_name:
cmd = ' '.join(['scp -o "StrictHostKeyChecking no"',
('-i %s' % key_name),
file_path,
'%s@%s:%s' % (self.connection_data.username,
dest,
image_path)
])
# do the remote copy
self.run_vios_command(cmd)
# cleanup local file only if transferring to remote system
# otherwise keep the file to boot from locally and clean up later
cleanup_cmd = 'rm %s' % file_path
self.run_vios_command_as_root(cleanup_cmd)
return file_path