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On Fri, 12 Feb 2010 02:23, christer.solskogen@ wrote:
The homepage for the project is http://code.google.com/p/jailcfg/.
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From: Christer Solskogen <christer.solsko...@gmail.com>
Date: Thu, Feb 11, 2010 at 4:33 PM
Subject: Jailcfg - A new tool for creating small(!) jails
To: freebsd-ja...@freebsd.org, freebsd-questi...@freebsd.org
Hi!
I've just began scripting a small tool for creating jails, much like
ezjail. But instead of creating a own basejail, jailcfg mounts /bin,
/lib, /usr/bin, etc. from root. And this means that the footprint of
one of "my" jails is just about 3MB :) The script is in very early
stages, but it's a start. Get it by doing: hg clone
https://jailcfg.googlecode.com/hg/ jailcfg
Feedback is welcome!
--
chs
Just for some more idea's to build upon.
You could have a thousand jails at no extra space besides one base jail
installed at 160M and using zfs snapshot and clone. with no additional
mounting needed besides the actual jail and its device directory. ;)
The only data that is collected after that is user data which is a good
thing with no extra cost of system mount points and disk usage.
You could even snapshot a existing ports directory clone it and then set
its mount point for the jail at no additional space.
Same goes for src, or anything else you could imagine.
After this its a simple little script that spams jails rc.conf and other
related files to get it ready to go and then spams the main rc.conf with
correct jail names to start that were just created.
example: ( zfs list -r exports/zones )
NAME USED AVAIL REFER MOUNTPOINT
exports/zones 160M 67.3G 26K /exports/zones
exports/zones/base 160M 67.3G 160M /exports/zones/base
exports/zones/b...@r203742m 0 - 160M -
exports/zones/jail1 0 67.3G 160M /exports/zones/jail1
exports/zones/jail2 0 67.3G 160M /exports/zones/jail2
exports/zones/jail3 0 67.3G 160M /exports/zones/jail3
exports/zones/jail4 0 67.3G 160M /exports/zones/jail4
exports/zones/jail5 0 67.3G 160M /exports/zones/jail5
exports/zones/jail6 0 67.3G 160M /exports/zones/jail6
Kind regards,
- --
jhell
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