File: sysprep_operation_lvm_uuids.ml

package info (click to toggle)
libguestfs 1%3A1.44.0-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 118,932 kB
  • sloc: ansic: 458,017; ml: 51,424; sh: 13,191; java: 9,578; makefile: 7,931; cs: 6,328; haskell: 5,674; python: 3,871; perl: 3,528; erlang: 2,446; xml: 1,347; ruby: 350; pascal: 257; javascript: 157; lex: 135; yacc: 128; cpp: 10
file content (51 lines) | stat: -rw-r--r-- 1,774 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
(* 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 Sysprep_operation
open Common_gettext.Gettext

module G = Guestfs

let rec lvm_uuids_perform g root side_effects =
  let typ = g#inspect_get_type root in
  if typ = "linux" then (
    let has_lvm2_feature =
      try g#available [|"lvm2"|]; true with G.Error _ -> false in
    if has_lvm2_feature then (
      let has_pvs, has_vgs = g#pvs () <> [||], g#vgs () <> [||] in
      if has_pvs || has_vgs then g#vg_activate_all false;
      if has_pvs then g#pvchange_uuid_all ();
      if has_vgs then g#vgchange_uuid_all ();
      if has_pvs || has_vgs then g#vg_activate_all true
    )
  )

let op = {
  defaults with
    name = "lvm-uuids";
    enabled_by_default = true;
    heading = s_"Change LVM2 PV and VG UUIDs";
    pod_description = Some (s_"\
On Linux guests that have LVM2 physical volumes (PVs) or volume groups (VGs),
new random UUIDs are generated and assigned to those PVs and VGs.");
    perform_on_devices = Some lvm_uuids_perform;
}

let () = register_operation op