Default docker nfs support doesn't create the needed directory for the volume (for example by volume name inside of the base nfs share directory).
Is it supported with your plugin?

To be able to provide more details when someone create an issue as it what will happen every time gluster failed to mount.

For proof : https://github.com/sapk/docker-volume-gluster/issues?utf8=%E2%9C%93&q=exit+status+1

• try to ping/resolve each clusters membres to be sure that it resolve as it is common error.