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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
(* virt-customize
* Copyright (C) 2014 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 Std_utils
open Tools_utils
open Common_gettext.Gettext
open Getopt.OptionName
open Customize_cmdline
open Printf
module G = Guestfs
let () = Random.self_init ()
let main () =
let attach = ref [] in
let attach_format = ref None in
let attach_format_consumed = ref true in
let set_attach_format s =
attach_format_consumed := false;
match s with
| "auto" -> attach_format := None
| s -> attach_format := Some s
in
let attach_disk s = List.push_front (!attach_format, s) attach in
let domain = ref None in
let dryrun = ref false in
let files = ref [] in
let format = ref "auto" in
let format_consumed = ref true in
let set_format s =
format := s;
format_consumed := false
in
let libvirturi = ref "" in
let memsize = ref None in
let set_memsize arg = memsize := Some arg in
let network = ref true in
let smp = ref None in
let set_smp arg = smp := Some arg in
let add_file arg =
let uri =
try URI.parse_uri arg
with URI.Parse_failed ->
error (f_"error parsing URI '%s'. Look for error messages printed above.")
arg in
let format = match !format with "auto" -> None | fmt -> Some fmt in
List.push_front (uri, format) files;
format_consumed := true
and set_domain dom =
if !domain <> None then
error (f_"--domain option can only be given once");
domain := Some dom
in
let argspec = [
[ S 'a'; L"add" ], Getopt.String (s_"file", add_file), s_"Add disk image file";
[ L"attach" ], Getopt.String ("iso", attach_disk), s_"Attach data disk/ISO during install";
[ L"attach-format" ], Getopt.String ("format", set_attach_format),
s_"Set attach disk format";
[ S 'c'; L"connect" ], Getopt.Set_string (s_"uri", libvirturi), s_"Set libvirt URI";
[ S 'd'; L"domain" ], Getopt.String (s_"domain", set_domain), s_"Set libvirt guest name";
[ S 'n'; L"dryrun"; L"dry-run" ], Getopt.Set dryrun, s_"Perform a dry run";
[ L"format" ], Getopt.String (s_"format", set_format), s_"Set format (default: auto)";
[ S 'm'; L"memsize" ], Getopt.Int ("mb", set_memsize), s_"Set memory size";
[ L"network" ], Getopt.Set network, s_"Enable appliance network (default)";
[ L"no-network" ], Getopt.Clear network, s_"Disable appliance network";
[ L"smp" ], Getopt.Int ("vcpus", set_smp), s_"Set number of vCPUs";
] in
let customize_argspec, get_customize_ops = Customize_cmdline.argspec () in
let customize_argspec =
List.map (fun (spec, _, _) -> spec) customize_argspec in
let argspec = argspec @ customize_argspec in
let usage_msg =
sprintf (f_"\
%s: customize a virtual machine
virt-customize [--options] -d domname
virt-customize [--options] -a disk.img [-a disk.img ...]
A short summary of the options is given below. For detailed help please
read the man page virt-customize(1).
")
prog in
let opthandle = create_standard_options argspec ~key_opts:true usage_msg in
Getopt.parse opthandle.getopt;
if not !format_consumed then
error (f_"--format parameter must appear before -a parameter");
if not !attach_format_consumed then
error (f_"--attach-format parameter must appear before --attach parameter");
(* Check -a and -d options. *)
let files = !files in
let domain = !domain in
let libvirturi = match !libvirturi with "" -> None | s -> Some s in
let add =
match files, domain with
| [], None ->
error (f_"you must give either -a or -d options. Read virt-customize(1) man page for further information.")
| [], Some dom ->
fun (g : Guestfs.guestfs) readonly ->
let allowuuid = true in
let readonlydisk = "ignore" (* ignore CDs, data drives *) in
let discard = if readonly then None else Some "besteffort" in
ignore (g#add_domain
~readonly ?discard
?libvirturi ~allowuuid ~readonlydisk
dom)
| _::_, Some _ ->
error (f_"you cannot give -a and -d options together. Read virt-customize(1) man page for further information.")
| (_::_) as files, None ->
fun g readonly ->
List.iter (
fun (uri, format) ->
let { URI.path; protocol; server; username; password } = uri in
let discard = if readonly then None else Some "besteffort" in
g#add_drive
~readonly ?discard
?format ~protocol ?server ?username ?secret:password
path
) files
in
(* Dereference the rest of the args. *)
let attach = List.rev !attach in
let dryrun = !dryrun in
let memsize = !memsize in
let network = !network in
let smp = !smp in
let ops = get_customize_ops () in
message (f_"Examining the guest ...");
(* Connect to libguestfs. *)
let g =
let g = open_guestfs () in
Option.may g#set_memsize memsize;
Option.may g#set_smp smp;
g#set_network network;
(* Add disks. *)
add g dryrun;
(* Attach ISOs, if we have any. *)
List.iter (
fun (format, file) ->
g#add_drive_opts ?format ~readonly:true file;
) attach;
g#launch ();
g in
(* Decrypt the disks. *)
inspect_decrypt g opthandle.ks;
(* Inspection. *)
(match Array.to_list (g#inspect_os ()) with
| [] ->
error (f_"no operating systems were found in the guest image")
| roots ->
List.iter (
fun root ->
(* Mount up the disks, like guestfish -i.
* See [ocaml/examples/inspect_vm.ml].
*)
inspect_mount_root g root;
(* Do the customization. *)
Customize_run.run g root ops;
g#umount_all ();
) roots;
);
message (f_"Finishing off");
g#shutdown ();
g#close ()
(* Finished. *)
let () = run_main_and_handle_errors main
|
