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(* virt-sysprep
* Copyright (C) 2012 Red Hat Inc.
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*)
open Printf
open Utils
open Sysprep_operation
open Sysprep_gettext.Gettext
module G = Guestfs
let hostname = ref "localhost.localdomain"
let hostname_perform g root =
let typ = g#inspect_get_type root in
let distro = g#inspect_get_distro root in
let major_version = g#inspect_get_major_version root in
let update_etc_hostname () =
g#write "/etc/hostname" !hostname;
[ `Created_files ]
in
match typ, distro, major_version with
(* Fedora 18 (hence RHEL 7+) changed to using /etc/hostname
* (RHBZ#881953, RHBZ#858696).
*)
| "linux", "fedora", v when v >= 18 -> update_etc_hostname ()
| "linux", "rhel", v when v >= 7 -> update_etc_hostname ()
| "linux", ("debian"|"ubuntu"), _ -> update_etc_hostname ()
| "linux", ("fedora"|"rhel"|"centos"|"scientificlinux"|"redhat-based"), _ ->
let filename = "/etc/sysconfig/network" in
if g#is_file filename then (
(* Replace HOSTNAME=... entry. The code assumes it's a small,
* plain text file.
*)
let lines = Array.to_list (g#read_lines filename) in
let lines = List.filter (
fun line -> not (string_prefix line "HOSTNAME=")
) lines in
let file =
String.concat "\n" lines ^
sprintf "\nHOSTNAME=%s\n" !hostname in
g#write filename file;
) else (
let file = sprintf "HOSTNAME=%s\n" !hostname in
g#write filename file;
);
[ `Created_files ]
| "linux", ("opensuse"|"sles"|"suse-based"), _ ->
g#write "/etc/HOSTNAME" !hostname;
[ `Created_files ]
| _ -> []
let hostname_op = {
name = "hostname";
enabled_by_default = true;
heading = s_"Change the hostname of the guest";
pod_description = Some (s_"\
This operation changes the hostname of the guest to the value
given in the I<--hostname> parameter.
If the I<--hostname> parameter is not given, then the hostname is changed
to C<localhost.localdomain>.");
extra_args = [
("--hostname", Arg.Set_string hostname, s_"hostname" ^ " " ^ s_"New hostname"),
s_"\
Change the hostname. If not given, defaults to C<localhost.localdomain>."
];
perform_on_filesystems = Some hostname_perform;
perform_on_devices = None;
}
let () = register_operation hostname_op
|
