Yeah, the reality is it's about 3 additional commands to get going (over any other normal volume)...and a very short chef cookbook to automate it.

    # create a key file
    dd if=/dev/urandom of=/etc/mykeyfile.key bs=512 count=1
    # create the luks container
    cryptsetup luksFormat /dev/sdf1 /etc/mykeyfile.key
    # open the luks container
    cryptsetup luksOpen /dev/sdf1 myluksvolume --key-file /etc/mykeyfile.key
    # format the volume
    mkfs.xfs /dev/mapper/myluksvolume
    # mount the disk
    mount /dev/mapper/myluksvolume /mnt/mymountpoint