Date: Wed, 30 Mar 2016 16:55:47 +0200 From: Niklaas Baudet von Gersdorff <stdin@niklaas.eu> To: freebsd-questions@freebsd.org Subject: Re: Variables substitution in jail.conf Message-ID: <20160330145547.GC1256@box.niklaas.eu> In-Reply-To: <7fbd35d23c23fb734bc10643a06f2d78@gritton.org> References: <7fbd35d23c23fb734bc10643a06f2d78@gritton.org>
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James Gritton [2016-03-30 07:47 -0600] :
> Niklaas Baudet von Gersdorff <stdin@niklaas.eu> wrote:
>
> > host.hostname = "$name.box-fra-01.klaas";
> > path = "/usr/local/jails/$name";
> > ip4.addr = "lo1|10.15.$network.$id";
> > ip6.addr = "vtnet0|2a00:XXX:XXXX:XXXX:X::$network:$id";
> > mount = "/usr/local/jails/templates/base-10.2-RELEASE
> > /usr/local/jails/$name/ nullfs ro 0 0";
> > mount += "/usr/local/jails/thinjails/$name
> > /usr/local/jails/$name/jail nullfs rw 0 0";
> > mount.devfs;
> >
> > exec.start = "/bin/sh /etc/rc";
> > exec.stop = "/bin/sh /etc/rc.shutdown";
> >
> > exec.clean;
> >
> > www {
> > $id = 1;
> > $network = 1;
> > exec.poststart = "pfctl -t www -T add ${ip4.addr} {$ip6.addr}";
> > exec.poststop = "pfctl -t www -T delete {$ip4.addr} {$ip6.addr}";
> > }
> The problem is pretty simple - just a case of moving some brackets. In
> the definition of exec.poststart, you did ip4.addr right - ${ip4.addr}.
> But for ip6.addr, you moved the dollar sign inside the braces -
> {$ip6.addr}. That makes it look like the braces and the ".addr" are
> just part of the string, and only $ip6 is the variable to be
> substituted.
>
> So all you need is:
>
> exec.poststart = "pfctl -t www -T add ${ip4.addr} ${ip6.addr}";
> exec.poststop = "pfctl -t www -T delete ${ip4.addr}
> ${ip6.addr}";
Indeed, that was it. Thanks. Four eyes see more than two. Anyway, that leaves
me with the problem that the variables expand to lo1|something and
vtnet0|something. I tried to set custom variables but that's not possible, is
it?
help
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