use PVE::VZDump::Plugin;
use PVE::DataCenterConfig;
use PVE::SSHInfo;
+use PVE::Replication;
BEGIN {
if (!$ENV{PVE_GENERATING_DOCS}) {
method => 'POST',
protected => 1,
proxyto => 'node',
- description => "Move volume to different storage.",
+ description => "Move volume to different storage or to a different VM.",
permissions => {
- description => "You need 'VM.Config.Disk' permissions on /vms/{vmid}, and 'Datastore.AllocateSpace' permissions on the storage.",
+ description => "You need 'VM.Config.Disk' permissions on /vms/{vmid}, " .
+ "and 'Datastore.AllocateSpace' permissions on the storage. To move ".
+ "a disk to another VM, you need the permissions on the target VM as well.",
check => [ 'and',
['perm', '/vms/{vmid}', [ 'VM.Config.Disk' ]],
['perm', '/storage/{storage}', [ 'Datastore.AllocateSpace' ]],
properties => {
node => get_standard_option('pve-node'),
vmid => get_standard_option('pve-vmid', { completion => \&PVE::QemuServer::complete_vmid }),
+ 'target-vmid' => get_standard_option('pve-vmid', {
+ completion => \&PVE::QemuServer::complete_vmid,
+ optional => 1,
+ }),
disk => {
type => 'string',
description => "The disk you want to move.",
- enum => [PVE::QemuServer::Drive::valid_drive_names()],
+ enum => [PVE::QemuServer::Drive::valid_drive_names_with_unused()],
},
storage => get_standard_option('pve-storage-id', {
description => "Target storage.",
completion => \&PVE::QemuServer::complete_storage,
+ optional => 1,
}),
'format' => {
type => 'string',
minimum => '0',
default => 'move limit from datacenter or storage config',
},
+ 'target-disk' => {
+ type => 'string',
+ description => "The config key the disk will be moved to on the target VM " .
+ "(for example, ide0 or scsi1). Default is the source disk key.",
+ enum => [PVE::QemuServer::Drive::valid_drive_names_with_unused()],
+ optional => 1,
+ },
+ 'target-digest' => {
+ type => 'string',
+ description => 'Prevent changes if current configuration file of the target VM has " .
+ "a different SHA1 digest. This can be used to prevent concurrent modifications.',
+ maxLength => 40,
+ optional => 1,
+ },
},
},
returns => {
my $node = extract_param($param, 'node');
my $vmid = extract_param($param, 'vmid');
+ my $target_vmid = extract_param($param, 'target-vmid');
my $digest = extract_param($param, 'digest');
+ my $target_digest = extract_param($param, 'target-digest');
my $disk = extract_param($param, 'disk');
+ my $target_disk = extract_param($param, 'target-disk') // $disk;
my $storeid = extract_param($param, 'storage');
my $format = extract_param($param, 'format');
+ die "either set storage or target-vmid, but not both\n" if $storeid && $target_vmid;
+
my $storecfg = PVE::Storage::config();
+ my $source_volid;
- my $updatefn = sub {
+ my $move_updatefn = sub {
my $conf = PVE::QemuConfig->load_config($vmid);
PVE::QemuConfig->check_lock($conf);
return $rpcenv->fork_worker('qmmove', $vmid, $authuser, $realcmd);
};
- return PVE::QemuConfig->lock_config($vmid, $updatefn);
+ my $load_and_check_reassign_configs = sub {
+ my $vmlist = PVE::Cluster::get_vmlist()->{ids};
+
+ die "could not find VM ${vmid}\n" if !exists($vmlist->{$vmid});
+
+ if ($vmlist->{$vmid}->{node} ne $vmlist->{$target_vmid}->{node}) {
+ die "Both VMs need to be on the same node $vmlist->{$vmid}->{node}) ".
+ "but target VM is on $vmlist->{$target_vmid}->{node}.\n";
+ }
+
+ my $source_conf = PVE::QemuConfig->load_config($vmid);
+ PVE::QemuConfig->check_lock($source_conf);
+ my $target_conf = PVE::QemuConfig->load_config($target_vmid);
+ PVE::QemuConfig->check_lock($target_conf);
+
+ die "Can't move disks from or to template VMs\n"
+ if ($source_conf->{template} || $target_conf->{template});
+
+ if ($digest) {
+ eval { PVE::Tools::assert_if_modified($digest, $source_conf->{digest}) };
+ die "VM ${vmid}: $@" if $@;
+ }
+
+ if ($target_digest) {
+ eval { PVE::Tools::assert_if_modified($target_digest, $target_conf->{digest}) };
+ die "VM ${target_vmid}: $@" if $@;
+ }
+
+ die "Disk '${disk}' for VM '$vmid' does not exist\n" if !defined($source_conf->{$disk});
+
+ die "Target disk key '${target_disk}' is already in use for VM '$target_vmid'\n"
+ if exists($target_conf->{$target_disk});
+
+ my $drive = PVE::QemuServer::parse_drive(
+ $disk,
+ $source_conf->{$disk},
+ );
+ $source_volid = $drive->{file};
+
+ die "disk '${disk}' has no associated volume\n" if !$source_volid;
+ die "CD drive contents can't be moved to another VM\n"
+ if PVE::QemuServer::drive_is_cdrom($drive, 1);
+ die "Can't move physical disk to another VM\n" if $source_volid =~ m|^/dev/|;
+ die "Can't move disk used by a snapshot to another VM\n"
+ if PVE::QemuServer::Drive::is_volume_in_use($storecfg, $source_conf, $disk, $source_volid);
+ die "Storage does not support moving of this disk to another VM\n"
+ if (!PVE::Storage::volume_has_feature($storecfg, 'rename', $source_volid));
+ die "Cannot move disk to another VM while the source VM is running\n"
+ if PVE::QemuServer::check_running($vmid) && $disk !~ m/^unused\d+$/;
+
+ if ($target_disk !~ m/^unused\d+$/ && $target_disk =~ m/^([^\d]+)\d+$/) {
+ my $interface = $1;
+ my $desc = PVE::JSONSchema::get_standard_option("pve-qm-${interface}");
+ eval {
+ PVE::JSONSchema::parse_property_string(
+ $desc->{format},
+ $source_conf->{$disk},
+ )
+ };
+ die "Cannot move disk to another VM: $@" if $@;
+ }
+
+ my $repl_conf = PVE::ReplicationConfig->new();
+ my $is_replicated = $repl_conf->check_for_existing_jobs($target_vmid, 1);
+ my ($storeid, undef) = PVE::Storage::parse_volume_id($source_volid);
+ my $format = (PVE::Storage::parse_volname($storecfg, $source_volid))[6];
+ if ($is_replicated && !PVE::Storage::storage_can_replicate($storecfg, $storeid, $format)) {
+ die "Cannot move disk to a replicated VM. Storage does not support replication!\n";
+ }
+
+ return ($source_conf, $target_conf);
+ };
+
+ my $logfunc = sub {
+ my ($msg) = @_;
+ print STDERR "$msg\n";
+ };
+
+ my $disk_reassignfn = sub {
+ return PVE::QemuConfig->lock_config($vmid, sub {
+ return PVE::QemuConfig->lock_config($target_vmid, sub {
+ my ($source_conf, $target_conf) = &$load_and_check_reassign_configs();
+
+ my $drive_param = PVE::QemuServer::parse_drive(
+ $target_disk,
+ $source_conf->{$disk},
+ );
+
+ print "moving disk '$disk' from VM '$vmid' to '$target_vmid'\n";
+ my ($storeid, $source_volname) = PVE::Storage::parse_volume_id($source_volid);
+
+ my $fmt = (PVE::Storage::parse_volname($storecfg, $source_volid))[6];
+
+ my $new_volid = PVE::Storage::rename_volume(
+ $storecfg,
+ $source_volid,
+ $target_vmid,
+ );
+
+ $drive_param->{file} = $new_volid;
+
+ delete $source_conf->{$disk};
+ print "removing disk '${disk}' from VM '${vmid}' config\n";
+ PVE::QemuConfig->write_config($vmid, $source_conf);
+
+ my $drive_string = PVE::QemuServer::print_drive($drive_param);
+ &$update_vm_api(
+ {
+ node => $node,
+ vmid => $target_vmid,
+ digest => $target_digest,
+ $target_disk => $drive_string,
+ },
+ 1,
+ );
+
+ # remove possible replication snapshots
+ if (PVE::Storage::volume_has_feature(
+ $storecfg,
+ 'replicate',
+ $source_volid),
+ ) {
+ eval {
+ PVE::Replication::prepare(
+ $storecfg,
+ [$new_volid],
+ undef,
+ 1,
+ undef,
+ $logfunc,
+ )
+ };
+ if (my $err = $@) {
+ print "Failed to remove replication snapshots on moved disk " .
+ "'$target_disk'. Manual cleanup could be necessary.\n";
+ }
+ }
+ });
+ });
+ };
+
+ if ($target_vmid) {
+ $rpcenv->check_vm_perm($authuser, $target_vmid, undef, ['VM.Config.Disk'])
+ if $authuser ne 'root@pam';
+
+ die "Moving a disk to the same VM is not possible. Did you mean to ".
+ "move the disk to a different storage?\n"
+ if $vmid eq $target_vmid;
+
+ &$load_and_check_reassign_configs();
+ return $rpcenv->fork_worker(
+ 'qmmove',
+ "${vmid}-${disk}>${target_vmid}-${target_disk}",
+ $authuser,
+ $disk_reassignfn
+ );
+ } elsif ($storeid) {
+ die "cannot move disk '$disk', only configured disks can be moved to another storage\n"
+ if $disk =~ m/^unused\d+$/;
+ return PVE::QemuConfig->lock_config($vmid, $move_updatefn);
+ } else {
+ die "Provide either a 'storage' to move the disk to a different " .
+ "storage or 'target-vmid' and 'target-disk' to move the disk " .
+ "to another VM\n";
+ }
}});
my $check_vm_disks_local = sub {
projects / qemu-server.git / commitdiff