As you're only extracting a single value, there's no need to use a csv parser here, you can just ask ovn-nbctl for the specific field using `--column=` arg and use `--data=bare` with `--no-headings`. See https://github.com/lxc/lxd/blob/master/lxd/network/openvswitch/ovn.go#L1312 for an example.