On Jun 6, 2005, at 1:09 AM, Tim Aslat wrote:
On Sun, 5 Jun 2005 02:00:35 -0500
"DrVince" <[EMAIL PROTECTED]> wrote:
Could I use quota to limit jails?
Not really, but you might be able to use a "memory disk" (man md,
mdconfig) to limit the entire jail to a set size.
Yes, I do this. Almost all my jails reside in md devices (or more
than one if I have separate ones for logs etc).
Dump works on md devices so it makes it pretty easy.
Since I use a shared master jail mounted readony inside each jail,
the jail md devices only have the jail specific files in them and the
jail users data. /bin /sbin /lib /usr/bin etc are all shared
readonly. Appropriate links into the md device for /usr/local . /
etc and /var are in the md device.
Chad
I haven't tried this myself, but I'm guessing something like this
should
work.
#------------------- create jail script -----------------------
#!/bin/sh
ID=${ARGV[1]}
DEST=/jails/jail.${ID}
IMAGE=/jails/images/jail.${ID}
# create a blank disk image of 512 Mb
dd if=/dev/zero of=${IMAGE} bs=1024k count=512
mdconfig -a -t vnode -f ${IMAGE} -u ${ID}
bsdlabel -w md${ID} auto
newfs md${ID}c
mount /dev/md${ID}c ${DEST}
# create jail using created image
cd /usr/src
mkdir -p ${DEST}
make world DESTDIR=${DEST}
cd etc
make distribution DESTDIR=${DEST}
mount_devfs devfs ${DEST}/dev
cd ${DEST}
ln -sf dev/null kernel
#------------------------ End script -----------------------
Again, I haven't tested this, I've just copied & pasted from the
various man pages into a semi-coherent script.
Cheers
Tim
--
Tim Aslat <[EMAIL PROTECTED]>
Spyderweb Consulting
http://www.spyderweb.com.au
Phone: +61 8 84193434
Mobile: +61 0401088479
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Chad Leigh -- Shire.Net LLC
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