Define a launcher host mount, suitable for use with the mounts
argument to launcherSubmitJob(). This can
be used to mount a path from the host into the generated container.
launcherHostMount(path, mountPath, readOnly = TRUE)The host path to be mounted.
The destination path for the mount in the container.
Boolean; should the path be mounted read-only?
Other job-launcher functionality: 
launcherAvailable(),
launcherConfig(),
launcherContainer(),
launcherControlJob(),
launcherGetInfo(),
launcherGetJobs(),
launcherGetJob(),
launcherNfsMount(),
launcherPlacementConstraint(),
launcherResourceLimit(),
launcherSubmitJob(),
launcherSubmitR()