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;;; Consfigurator -- Lisp declarative configuration management system
;;; Copyright (C) 2021 Sean Whitton <spwhitton@spwhitton.name>
;;; This file is free software; you can redistribute it and/or modify
;;; it under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3, or (at your option)
;;; any later version.
;;; This file is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;; You should have received a copy of the GNU General Public License
;;; along with this program. If not, see <http://www.gnu.org/licenses/>.
(in-package :consfigurator.property.hostname)
(named-readtables:in-readtable :consfigurator)
(defun domain (hostname)
(if-let ((pos (position #\. hostname)))
(subseq hostname (min (length hostname) (1+ pos)))
""))
(defprop is :posix (hostname)
"Specify that the hostname of this host is HOSTNAME.
Useful for hosts implicitly defined inline using dotted propapp notation.
Unlikely to be useful for hosts defined using DEFHOST."
(:desc #?"Hostname is ${hostname}")
(:hostattrs (push-hostattr :hostname hostname)))
(defpropspec configured :posix
(&optional (hostname (get-hostname) hostname-supplied-p)
&aux (short (car (split-string hostname :separator "."))))
"Set the hostname in the standard Debian way."
(:desc "Hostname configured")
`(seqprops
,@(and hostname-supplied-p `((is ,hostname)))
(on-change (file:has-content "/etc/hostname" ,short)
(container:when-contained (:hostname)
(cmd:single ,(strcat "hostname " short))))
(file:contains-conf-tab
"/etc/hosts"
,@(and (position #\. hostname)
`("127.0.1.1" ,(strcat hostname " " short)))
"127.0.0.1" "localhost")))
(defproplist mailname-configured :posix (&optional (mailname (get-hostname)))
"Sets the mailname to MAILNAME.
The FQDN is a good choice for unclustered machines which do not have
publically advertised MX records; in other cases it will often be better to
use only the domain name portion of the hostname."
(:desc "/etc/mailname configured")
(file:has-content "/etc/mailname" mailname))
(defproplist search-configured :posix (&optional (domain (domain (get-hostname))))
"Set the default DOMAIN for hostname lookup in /etc/resolv.conf.
DOMAIN defaults to everything after the first dot of the machine's hostname,
which is assumed to be an FQDN."
(:desc "Search domain in /etc/resolv.conf configured")
(file:contains-conf-space "/etc/resolv.conf" "search" domain))
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