def _get_available_nvmf_subsystems(self):
__, tmp_file_path = tempfile.mkstemp(prefix='nvmet')
# nvmetcli doesn't support printing to stdout yet,
try:
out, err = nvmcli.save(tmp_file_path)
except putils.ProcessExecutionError:
with excutils.save_and_reraise_exception():
LOG.exception('Error from nvmetcli save')
self._delete_file(tmp_file_path)
# temp file must be readable by this process user
# in order to avoid executing cat as root
with utils.temporary_chown(tmp_file_path):
try:
out = cinder.privsep.path.readfile(tmp_file_path)
except putils.ProcessExecutionError:
with excutils.save_and_reraise_exception():
LOG.exception('Failed to read: %s', tmp_file_path)
self._delete_file(tmp_file_path)
nvmf_subsystems = json.loads(out)
self._delete_file(tmp_file_path)
return nvmf_subsystems
def _get_available_nvmf_subsystems(self):
__, tmp_file_path = tempfile.mkstemp(prefix='nvmet')
# nvmetcli doesn't support printing to stdout yet,
try:
out, err = nvmcli.save(tmp_file_path)
except putils.ProcessExecutionError:
with excutils.save_and_reraise_exception():
LOG.exception('Error from nvmetcli save')
self._delete_file(tmp_file_path)
# temp file must be readable by this process user
# in order to avoid executing cat as root
with utils.temporary_chown(tmp_file_path):
try:
out = cinder.privsep.path.readfile(tmp_file_path)
except putils.ProcessExecutionError:
with excutils.save_and_reraise_exception():
LOG.exception('Failed to read: %s', tmp_file_path)
self._delete_file(tmp_file_path)
nvmf_subsystems = json.loads(out)
self._delete_file(tmp_file_path)
return nvmf_subsystems