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99cfc1f36e
This allows you to add scripts that run in the context of the guest the first time it boots.
87 lines
2.7 KiB
OCaml
87 lines
2.7 KiB
OCaml
(* virt-sysprep
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* Copyright (C) 2012 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*)
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open Printf
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open Utils
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open Sysprep_operation
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open Sysprep_gettext.Gettext
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module G = Guestfs
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let files = ref []
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let make_id_from_filename filename =
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let ret = String.copy filename in
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for i = 0 to String.length ret - 1 do
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let c = String.unsafe_get ret i in
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if not ((c >= 'a' && c <= 'z') ||
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(c >= 'A' && c <= 'Z') ||
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(c >= '0' && c <= '9')) then
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String.unsafe_set ret i '-'
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done;
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ret
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let firstboot_perform g root =
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(* Read the files and add them using the {!Firstboot} module. *)
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List.iter (
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fun filename ->
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let content = read_whole_file filename in
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let basename = Filename.basename filename in
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let id = make_id_from_filename basename in
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Firstboot.add_firstboot_script g root id content
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) !files;
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[ `Created_files ]
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let firstboot_op = {
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name = "firstboot";
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(* enabled_by_default because we only do anything if the
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* --firstboot parameter is used.
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*)
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enabled_by_default = true;
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heading = s_"Add scripts to run once at next boot";
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pod_description = Some (s_"\
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Supply one of more shell scripts (using the I<--firstboot> option).
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These are run the first time the guest boots, and then are
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deleted. So these are useful for performing last minute
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configuration that must run in the context of the guest
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operating system, for example C<yum update>.
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Output or errors from the scripts are written to
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C<~root/virt-sysprep-firstboot.log> (in the guest).
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Currently this is only implemented for Linux guests using
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either System V init, or systemd.");
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extra_args = [
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("--firstboot", Arg.String (fun s -> files := s :: !files),
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s_"script" ^ " " ^ s_"run script once next time guest boots"),
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s_"\
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Run script(s) once next time the guest boots. You can supply
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the I<--firstboot> option as many times as needed."
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];
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perform_on_filesystems = Some firstboot_perform;
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perform_on_devices = None;
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}
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let () = register_operation firstboot_op
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