]>
git.proxmox.com Git - qemu-server.git/blob - PVE/QemuServer/ImportDisk.pm
1 package PVE
::QemuServer
::ImportDisk
;
8 use PVE
::Tools
qw(run_command extract_param);
10 # imports an external disk image to an existing VM
11 # and creates by default a drive entry unused[n] pointing to the created volume
12 # $params->{drive_name} may be used to specify ide0, scsi1, etc ...
13 # $params->{format} may be used to specify qcow2, raw, etc ...
14 # $params->{skiplock} may be used to skip checking for a lock in the VM config
15 # $params->{'skip-config-update'} may be used to import the disk without updating the VM config
17 my ($src_path, $vmid, $storage_id, $params) = @_;
19 my $drive_name = extract_param
($params, 'drive_name');
20 my $format = extract_param
($params, 'format');
21 if ($drive_name && !(PVE
::QemuServer
::is_valid_drivename
($drive_name))) {
22 die "invalid drive name: $drive_name\n";
25 # get the needed size from source disk
26 my $src_size = PVE
::Storage
::file_size_info
($src_path);
28 # get target format, target image's path, and whether it's possible to sparseinit
29 my $storecfg = PVE
::Storage
::config
();
30 my $dst_format = PVE
::QemuServer
::resolve_dst_disk_format
($storecfg, $storage_id, undef, $format);
31 warn "format '$format' is not supported by the target storage - using '$dst_format' instead\n"
32 if $format && $format ne $dst_format;
34 my $dst_volid = PVE
::Storage
::vdisk_alloc
($storecfg, $storage_id, $vmid, $dst_format, undef, $src_size / 1024);
36 my $zeroinit = PVE
::Storage
::volume_has_feature
($storecfg, 'sparseinit', $dst_volid);
38 my $create_drive = sub {
39 my $vm_conf = PVE
::QemuConfig-
>load_config($vmid);
40 if (!$params->{skiplock
}) {
41 PVE
::QemuConfig-
>check_lock($vm_conf);
45 # should never happen as setting $drive_name is not exposed to public interface
46 die "cowardly refusing to overwrite existing entry: $drive_name\n" if $vm_conf->{$drive_name};
48 my $modified = {}; # record what $option we modify
49 $modified->{$drive_name} = 1;
50 $vm_conf->{pending
}->{$drive_name} = $dst_volid;
51 PVE
::QemuConfig-
>write_config($vmid, $vm_conf);
53 my $running = PVE
::QemuServer
::check_running
($vmid);
56 PVE
::QemuServer
::vmconfig_hotplug_pending
($vmid, $vm_conf, $storecfg, $modified, $errors);
57 warn "hotplugging imported disk '$_' failed: $errors->{$_}\n" for keys %$errors;
59 PVE
::QemuServer
::vmconfig_apply_pending
($vmid, $vm_conf, $storecfg);
62 $drive_name = PVE
::QemuConfig-
>add_unused_volume($vm_conf, $dst_volid);
63 PVE
::QemuConfig-
>write_config($vmid, $vm_conf);
68 # trap interrupts so we have a chance to clean up
73 local $SIG{PIPE
} = sub { die "interrupted by signal $!\n"; };
75 PVE
::Storage
::activate_volumes
($storecfg, [$dst_volid]);
76 PVE
::QemuServer
::qemu_img_convert
($src_path, $dst_volid, $src_size, undef, $zeroinit);
77 PVE
::Storage
::deactivate_volumes
($storecfg, [$dst_volid]);
78 PVE
::QemuConfig-
>lock_config($vmid, $create_drive) if !$params->{'skip-config-update'};
81 eval { PVE
::Storage
::vdisk_free
($storecfg, $dst_volid) };
82 warn "cleanup of $dst_volid failed: $@\n" if $@;
86 return ($drive_name, $dst_volid);