mirror of
https://git.proxmox.com/git/qemu-server
synced 2025-04-30 23:11:25 +00:00
b94e047acb
Each disk passed as paramater is add as 'unused[n]' in the vm.conf (the default) or ide[n]|scsi[n]|sata[n] We rely on qemu-img(1) convert heuristics to detect the file type, as this works in most case.
99 lines
3.3 KiB
Perl
Executable File
99 lines
3.3 KiB
Perl
Executable File
package PVE::QemuServer::ImportDisk;
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use PVE::Storage;
|
|
use PVE::QemuServer;
|
|
use PVE::Tools qw(run_command extract_param);
|
|
|
|
# imports an external disk image to an existing VM
|
|
# and creates by default a drive entry unused[n] pointing to the created volume
|
|
# $optional->{drive_name} may be used to specify ide0, scsi1, etc ...
|
|
# $optional->{format} may be used to specify qcow2, raw, etc ...
|
|
sub do_import {
|
|
my ($src_path, $vmid, $storage_id, $optional) = @_;
|
|
|
|
my $drive_name = extract_param($optional, 'drive_name');
|
|
my $format = extract_param($optional, 'format');
|
|
my $debug = extract_param($optional, 'debug');
|
|
if ($drive_name && !(PVE::QemuServer::is_valid_drivename($drive_name))) {
|
|
die "invalid drive name: $drive_name\n";
|
|
}
|
|
|
|
# get the needed size from source disk
|
|
my $src_size = PVE::Storage::file_size_info($src_path);
|
|
|
|
# get target format, target image's path, and whether it's possible to sparseinit
|
|
my $storecfg = PVE::Storage::config();
|
|
my $dst_format = PVE::QemuServer::resolve_dst_disk_format($storecfg,
|
|
$storage_id, undef, $format);
|
|
warn "format : $dst_format\n" if $debug;
|
|
|
|
my $dst_volid = PVE::Storage::vdisk_alloc($storecfg, $storage_id, $vmid,
|
|
$dst_format, undef, $src_size / 1024);
|
|
my $dst_path = PVE::Storage::path($storecfg, $dst_volid);
|
|
|
|
warn "args: $src_path, $vmid, $storage_id, $optional\n",
|
|
"\$dst_volid: $dst_volid\n", if $debug;
|
|
|
|
# qemu-img convert does the hard job
|
|
# we don't attempt to guess filetypes ourselves
|
|
my $convert_command = ['qemu-img', 'convert', $src_path, '-p', '-n', '-O', $dst_format];
|
|
if (PVE::Storage::volume_has_feature($storecfg, 'sparseinit', $dst_volid)) {
|
|
push @$convert_command, "zeroinit:$dst_path";
|
|
} else {
|
|
push @$convert_command, $dst_path;
|
|
}
|
|
|
|
my $create_drive = sub {
|
|
my $vm_conf = PVE::QemuConfig->load_config($vmid);
|
|
PVE::QemuConfig->check_lock($vm_conf);
|
|
|
|
if ($drive_name) {
|
|
# should never happen as setting $drive_name is not exposed to public interface
|
|
die "cowardly refusing to overwrite existing entry: $drive_name" if $vm_conf->{$drive_name};
|
|
|
|
my $modified = {}; # record what $option we modify
|
|
$modified->{$drive_name} = 1;
|
|
$vm_conf->{pending}->{$drive_name} = $dst_volid;
|
|
PVE::QemuConfig->write_config($vmid, $vm_conf);
|
|
|
|
my $running = PVE::QemuServer::check_running($vmid);
|
|
if ($running) {
|
|
my $errors = {};
|
|
PVE::QemuServer::vmconfig_hotplug_pending($vmid, $vm_conf, $storecfg, $modified, $errors);
|
|
raise_param_exc($errors) if scalar(keys %$errors);
|
|
} else {
|
|
PVE::QemuServer::vmconfig_apply_pending($vmid, $vm_conf, $storecfg);
|
|
}
|
|
|
|
} else {
|
|
PVE::QemuConfig->add_unused_volume($vm_conf, $dst_volid);
|
|
PVE::QemuConfig->write_config($vmid, $vm_conf);
|
|
}
|
|
|
|
};
|
|
|
|
eval {
|
|
# trap interrupts so we have a chance to clean up
|
|
local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
|
|
die "interrupted by signal\n";
|
|
};
|
|
PVE::Storage::activate_volumes($storecfg, [$dst_volid]);
|
|
run_command($convert_command);
|
|
PVE::Storage::deactivate_volumes($storecfg, [$dst_volid]);
|
|
PVE::QemuConfig->lock_config($vmid, $create_drive);
|
|
};
|
|
|
|
my $err = $@;
|
|
if ($err) {
|
|
eval { # do not die before we returned $err
|
|
PVE::Storage::vdisk_free($storecfg, $dst_volid);
|
|
};
|
|
die $err;
|
|
}
|
|
}
|
|
|
|
1;
|