[Bug 261036] rc.d/jail: Support multiple _startN and _stopN variables

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=261036

crest@rlwinm.de changed:

           What    |Removed                     |Added
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                 CC|                            |crest@rlwinm.de

--- Comment #3 from crest@rlwinm.de ---
As of FreeBSD 14.0 you can have your cake and eat it to when it comes to
templating jail configurations (e.g. with Ansible). The idea is to use a
/etc/jail.conf that uses a .include directive with a glob pattern that matches
all active jails kept inside a single directory. e.g. `.include
"/etc/jail.d/*.conf;`. You can repeat this recursively if you don't want to
emit the whole jail configuration from a single ansible template (maybe because
you assemble the jail piece by piece using multiple roles). In that case you
would have a skeleton config in /etc/jail.d/jail123.conf that includes the
different parts of the jail:
jail123 {
    .include "/etc/jail.d/jail123.d/*.conf";
}

This way you can just use the jail(8) command without having to provide all the
jail parameters on the CLI or going through the rc.d script. It also allows
using depend (pseudo-)parameter.

In my opinion your clever workaround has been overcome by events and is no
longer needed except on FreeBSD 13.x.

PSA: If you decide to use .include don't use /etc/jail.conf.d for your jail
configurations to include because it triggers the old per jail "jail -f $path"
logic in the jail rc.d script.

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