The scripts are available at github. Only tested on Ubuntu 12.04 LTS.
As default (for my dev env) each container will get its own separate mounted /opt (under host's /opt/lxc/\) and /mnt/dbext4 (/mnt/dbext4/lxc/\) and /mnt/dbxfs (/mnt/dbxfs/lxc/\). Containers will be named as 'name-seqno'. Paths/defaults can be changed by editing etc/config. There are no shared disks between the containers. Install: