docker volume on docker-machine

Is there any possible to add docker volume support? Is there any possible run cwl-runner on docker-machine or docker swarm?

```
$ cwl-runner docker.cwl docker-job.yml
/usr/local/bin/cwl-runner 1.0.20160331184641
I'm sorry, I couldn't load this CWL file, try again with --debug for more information.
name 'basestring' is not defined

ERROR:cwltool:I'm sorry, I couldn't load this CWL file, try again with --debug for more information.
name 'basestring' is not defined
```

```
$ docker-machine ls
NAME ACTIVE DRIVER STATE URL SWARM DOCKER ERRORS
default - virtualbox Stopped Unknown
server38217 * generic Running tcp://server38217:2376 v1.12.1
```

Thanks a lot!