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Date: Sat, 28 Jan 2012 10:19:19 +0200
From: Daniel Shafaf <danielsh@apache.org>
To: Matt Mullins <mokomull@gmail.com>
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Cc: Scott Sanders <Ssanders@taximagic.com>, current@freebsd.org,
	"Philip M. Gollucci" <pgollucci@gmail.com>
Subject: Re: jid and jname are numberic by default why? Can we change it ?
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Matt Mullins wrote on Fri, Jan 27, 2012 at 12:06:48 -0800:
> On Fri, Jan 27, 2012 at 9:08 AM, Philip M. Gollucci <pgollucci@gmail.com> wrote:
> > All,
> >
> > $ jls -nq | tail -1 | xargs -n1 | egrep '^(name|jid)='| xargs
> > jid=17 name=17
> >
> > # jubilee/chef
> > jail_jubilee_hostname="jubilee.dca1.rws"
> > jail_jubilee_ip="192.168.2.41"
> > jail_jubilee_ip_multi0="192.168.2.42"
> > jail_jubilee_interface="bge1"
> > jail_jubilee_rootdir="/jubilee"
> > jail_jubilee_devfs_enable="YES"
> 
> The default flags that /etc/rc.d/jail passes to jail(8) are "-l -U
> root".  Failing to give jail(8) a name results in name==jid, as you
> found above.
> 
> You can make the rc script name the jail by setting:
> jail_jubilee_flags="-n jubilee -l -U root"
> 

Good point.  Would it make sense to have rc.d/jail behave this way by
default?

% diff -u /etc/rc.d/jail jail 
--- /etc/rc.d/jail      2012-01-21 18:22:26.000000000 +0200
+++ jail        2012-01-28 10:13:03.000000000 +0200
@@ -112,7 +112,7 @@
        eval _fstab=\"\${jail_${_j}_fstab:-${jail_fstab}}\"
        [ -z "${_fstab}" ] && _fstab="/etc/fstab.${_j}"
        eval _flags=\"\${jail_${_j}_flags:-${jail_flags}}\"
-       [ -z "${_flags}" ] && _flags="-l -U root"
+       [ -z "${_flags}" ] && _flags="-n ${_j} -l -U root"
        eval _consolelog=\"\${jail_${_j}_consolelog:-${jail_consolelog}}\"
        [ -z "${_consolelog}" ] && _consolelog="/var/log/jail_${_j}_console.log"
        eval _fib=\"\${jail_${_j}_fib:-${jail_fib}}\"

> Notice the rc script uses the second form of syntax listed in jail(8),
> at least on 9.0-RELEASE.