vzctl start/resume: load kernel modules needed for CT

This patch introduces vps-prestart script which is executed upon
container start or restore. Currently, this script checks CT
config and loads some kernel modules if reqired.

This should help NFS, NFSD, PPP, and Docker to work inside CT
(if configured).

Signed-off-by: Kir Kolyshkin <kir@openvz.org>
6 files changed