Date: Mon, 17 Sep 2007 14:56:13 +0200 (CEST) From: Jeremie Le Hen <jeremie@le-hen.org> To: FreeBSD-gnats-submit@FreeBSD.org Cc: Jeremie Le Hen <jeremie@le-hen.org> Subject: conf/116416: [patch] per-jail rc.conf(5) style configuration file in /etc/jail/ Message-ID: <20070917125613.9B2C6405D@obiwan.tataz.chchile.org> Resent-Message-ID: <200709171340.l8HDe1Va061760@freefall.freebsd.org>
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>Number: 116416
>Category: conf
>Synopsis: [patch] per-jail rc.conf(5) style configuration file in /etc/jail/
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Mon Sep 17 13:40:01 GMT 2007
>Closed-Date:
>Last-Modified:
>Originator: Jeremie Le Hen <jeremie@le-hen.org>
>Release: FreeBSD 6.2-PRERELEASE i386
>Organization:
>Environment:
FreeBSD 7.0-CURRENT
>Description:
This patch changes etc/rc.d/jail: for a given jail $j, it will look for
/etc/jail/$j. If it exists, it will mostly source it, except that the
file only has to contain the parameter name "param" instead of "jail_$j_param".
The main benefit of this patch is that adding or removing a jail is far
more easily scriptable than it is currently.
For instance, let's say your current rc.conf(5) contains:
% jail_enable="YES"
% jail_list="test"
% jail_test_rootdir="/jail/test"
% jail_test_hostname="test.my.domain"
% jail_test_ip="10.11.12.13"
You can remove the last three lines and put the following in /etc/jail/test:
% rootdir="/jail/test"
% hostname="test.my.domain"
% ip="10.11.12.13"
The patch is very little intrusive and works well. I've not yet documented
it because I don't know where to insert it, but I would be glad to do it.
Please contact me if you have any idea about this.
--- etc_jail.diff begins here ---
Index: jail
===================================================================
RCS file: /home/ncvs/src/etc/rc.d/jail,v
retrieving revision 1.37
diff -u -p -u -r1.37 jail
--- jail 24 May 2007 06:01:06 -0000 1.37
+++ jail 17 Sep 2007 12:22:01 -0000
@@ -27,6 +27,14 @@ init_variables()
return
fi
+ if [ -f "/etc/jail/$_j" ]; then
+ eval `awk -v j="$_j" \
+ '/^[[:blank:]]*[a-zA-Z_][a-zA-Z0-9_]*=/ {
+ sub(/^[[:blank:]]+/, "")
+ print sprintf("jail_%s_%s", j, $0)
+ }' "/etc/jail/$_j"`
+ fi
+
eval _rootdir=\"\$jail_${_j}_rootdir\"
_devdir="${_rootdir}/dev"
_fdescdir="${_devdir}/fd"
--- etc_jail.diff ends here ---
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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