def add_export(self, name, confdict):
"""Add an export to Ganesha specified by confdict."""
xid = confdict["EXPORT"]["Export_Id"]
undos = []
_mkindex_called = False
try:
path = self._write_export(name, confdict)
if self.ganesha_rados_store_enable:
undos.append(lambda: self._rm_export_rados_object(name))
undos.append(lambda: self._rm_file(path))
else:
undos.append(lambda: self._rm_export_file(name))
self._dbus_send_ganesha("AddExport", "string:" + path,
"string:EXPORT(Export_Id=%d)" % xid)
undos.append(lambda: self._remove_export_dbus(xid))
if self.ganesha_rados_store_enable:
# Clean up temp export file used for the DBus call
self._rm_file(path)
self._add_rados_object_url_to_index(name)
else:
_mkindex_called = True
self._mkindex()
except exception.ProcessExecutionError as e:
for u in undos:
u()
if not self.ganesha_rados_store_enable and not _mkindex_called:
self._mkindex()
raise exception.GaneshaCommandFailure(
stdout=e.stdout, stderr=e.stderr, exit_code=e.exit_code,
cmd=e.cmd)
def _check_file_exists(self, path):
try:
self.execute('test', '-f', path, makelog=False,
run_as_root=False)
return True
except exception.GaneshaCommandFailure as e:
if e.exit_code == 1:
return False
else:
raise exception.GaneshaCommandFailure(
stdout=e.stdout, stderr=e.stderr, exit_code=e.exit_code,
cmd=e.cmd)
def _write_conf_file(self, name, data):
"""Write data to config file for name atomically."""
path = self._getpath(name)
tmpf = self._write_tmp_conf_file(path, data)
try:
self.execute('mv', tmpf, path)
except exception.ProcessExecutionError as e:
LOG.error('mv temp file ({0}) to {1} failed.'.format(tmpf, path))
self.execute('rm', tmpf)
raise exception.GaneshaCommandFailure(
stdout=e.stdout, stderr=e.stderr, exit_code=e.exit_code,
cmd=e.cmd)
return path
def _execute(*args, **kwargs):
msg = kwargs.pop('message', args[0])
makelog = kwargs.pop('makelog', True)
try:
return execute(*args, **kwargs)
except exception.ProcessExecutionError as e:
if makelog:
LOG.error(
("Error while executing management command on "
"Ganesha node %(tag)s: %(msg)s."),
{'tag': tag, 'msg': msg})
raise exception.GaneshaCommandFailure(
stdout=e.stdout, stderr=e.stderr, exit_code=e.exit_code,
cmd=e.cmd)
def test_check_file_exists_error(self, exit_code):
self.mock_object(
self._manager, 'execute',
mock.Mock(side_effect=exception.GaneshaCommandFailure(
exit_code=exit_code))
)
if exit_code == 1:
ret = self._manager._check_file_exists(test_path)
self.assertFalse(ret)
else:
self.assertRaises(exception.GaneshaCommandFailure,
self._manager._check_file_exists,
test_path)
self._manager.execute.assert_called_once_with(
'test', '-f', test_path, makelog=False, run_as_root=False)
def update_export(self, name, confdict):
"""Update an export to Ganesha specified by confdict."""
xid = confdict["EXPORT"]["Export_Id"]
old_confdict = self._read_export(name)
path = self._write_export(name, confdict)
try:
self._dbus_send_ganesha("UpdateExport", "string:" + path,
"string:EXPORT(Export_Id=%d)" % xid)
except exception.ProcessExecutionError as e:
# Revert the export update.
self._write_export(name, old_confdict)
raise exception.GaneshaCommandFailure(
stdout=e.stdout, stderr=e.stderr, exit_code=e.exit_code,
cmd=e.cmd)
finally:
if self.ganesha_rados_store_enable:
# Clean up temp export file used for the DBus update call
self._rm_file(path)
def raise_exception(*args, **kwargs):
if args == fake_args:
raise exception.GaneshaCommandFailure()