in gce-containers-startup/volumes/volumes.go [295:304]
func (env Env) processMemoryBackedEmptyDirVolume(volume *api.EmptyDirVolume, volumeName string) (VolumeHostPathAndMode, error) {
tmpfsMountPoint, err := env.createNewMountPath("tmpfs", volumeName)
if err != nil {
return VolumeHostPathAndMode{}, err
}
if err := env.mountDevice(newMount("tmpfs", tmpfsMountPoint, "tmpfs", readOnly(false))); err != nil {
return VolumeHostPathAndMode{}, err
}
return VolumeHostPathAndMode{hostPath: tmpfsMountPoint, readOnly: false}, nil
}