use PVE::INotify;
use PVE::Cluster;
use PVE::Storage;
+use PVE::LXC::Config;
use PVE::LXC;
+use PVE::ReplicationConfig;
+use PVE::ReplicationState;
+use PVE::Replication;
use base qw(PVE::AbstractMigrate);
sub lock_vm {
my ($self, $vmid, $code, @param) = @_;
- return PVE::LXC::lock_container($vmid, undef, $code, @param);
+ return PVE::LXC::Config->lock_config($vmid, $code, @param);
}
sub prepare {
my ($self, $vmid) = @_;
my $online = $self->{opts}->{online};
+ my $restart= $self->{opts}->{restart};
$self->{storecfg} = PVE::Storage::config();
- # test is VM exist
- my $conf = $self->{vmconf} = PVE::LXC::load_config($vmid);
+ # test if CT exists
+ my $conf = $self->{vmconf} = PVE::LXC::Config->load_config($vmid);
- PVE::LXC::check_lock($conf);
+ PVE::LXC::Config->check_lock($conf);
my $running = 0;
if (PVE::LXC::check_running($vmid)) {
- die "lxc live migration is currently not implemented\n";
-
- die "cant migrate running container without --online\n" if !$online;
+ die "lxc live migration is currently not implemented\n" if $online;
+ die "running container can only be migrated in restart mode" if !$restart;
$running = 1;
}
+ $self->{was_running} = $running;
- PVE::LXC::foreach_mountpoint($conf, sub {
+ PVE::LXC::Config->foreach_volume_full($conf, { include_unused => 1 }, sub {
my ($ms, $mountpoint) = @_;
my $volid = $mountpoint->{volume};
+ my $type = $mountpoint->{type};
+
+ # skip dev/bind mps when shared
+ if ($type ne 'volume') {
+ if ($mountpoint->{shared}) {
+ return;
+ } else {
+ die "cannot migrate local $type mount point '$ms'\n";
+ }
+ }
+
my ($storage, $volname) = PVE::Storage::parse_volume_id($volid, 1) if $volid;
- die "can't determine assigned storage for mountpoint '$ms'\n" if !$storage;
+ die "can't determine assigned storage for mount point '$ms'\n" if !$storage;
# check if storage is available on both nodes
- my $scfg = PVE::Storage::storage_check_node($self->{storecfg}, $storage);
- PVE::Storage::storage_check_node($self->{storecfg}, $storage, $self->{node});
+ my $scfg = PVE::Storage::storage_check_enabled($self->{storecfg}, $storage);
- die "unable to migrate local mountpoint '$volid' while CT is running"
- if !$scfg->{shared};
+ my $targetsid = $storage;
- });
+ die "content type 'rootdir' is not available on storage '$storage'\n"
+ if !$scfg->{content}->{rootdir};
+
+ if ($scfg->{shared}) {
+ # PVE::Storage::activate_storage checks this for non-shared storages
+ my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
+ warn "Used shared storage '$storage' is not online on source node!\n"
+ if !$plugin->check_connection($storage, $scfg);
+ } else {
+ # unless in restart mode because we shut the container down
+ die "unable to migrate local mount point '$volid' while CT is running"
+ if $running && !$restart;
+
+ $targetsid = PVE::JSONSchema::map_id($self->{opts}->{storagemap}, $storage);
+ }
- my $volid_list = PVE::LXC::get_vm_volumes($conf);
- PVE::Storage::activate_volumes($self->{storecfg}, $volid_list);
+ my $target_scfg = PVE::Storage::storage_check_enabled($self->{storecfg}, $targetsid, $self->{node});
+
+ die "$volid: content type 'rootdir' is not available on storage '$targetsid'\n"
+ if !$target_scfg->{content}->{rootdir};
+ });
# todo: test if VM uses local resources
eval { $self->cmd_quiet($cmd); };
die "Can't connect to destination address using public key\n" if $@;
+ # in restart mode, we shutdown the container before migrating
+ if ($restart && $running) {
+ my $timeout = $self->{opts}->{timeout} // 180;
+
+ $self->log('info', "shutdown CT $vmid\n");
+
+ PVE::LXC::vm_stop($vmid, 0, $timeout);
+
+ $running = 0;
+ }
+
return $running;
}
my $conf = $self->{vmconf};
$conf->{lock} = 'migrate';
- PVE::LXC::write_config($vmid, $conf);
+ PVE::LXC::Config->write_config($vmid, $conf);
if ($self->{running}) {
$self->log('info', "container is running - using online migration");
}
- $self->{volumes} = [];
+ $self->{volumes} = []; # list of already migrated volumes
+ my $volhash = {}; # 'config', 'snapshot' or 'storage' for local volumes
+ my $volhash_errors = {};
+ my $abort = 0;
- PVE::LXC::foreach_mountpoint($conf, sub {
- my ($ms, $mountpoint) = @_;
+ my $log_error = sub {
+ my ($msg, $volid) = @_;
+
+ $volhash_errors->{$volid} = $msg if !defined($volhash_errors->{$volid});
+ $abort = 1;
+ };
+
+ my $test_volid = sub {
+ my ($volid, $snapname) = @_;
+
+ return if !$volid;
+
+ my ($sid, $volname) = PVE::Storage::parse_volume_id($volid);
+
+ # check if storage is available on source node
+ my $scfg = PVE::Storage::storage_check_enabled($self->{storecfg}, $sid);
+
+ my $targetsid = $sid;
+
+ if ($scfg->{shared}) {
+ $self->log('info', "volume '$volid' is on shared storage '$sid'")
+ if !$snapname;
+ return;
+ } else {
+ $targetsid = PVE::JSONSchema::map_id($self->{opts}->{storagemap}, $sid);
+ }
+
+ PVE::Storage::storage_check_enabled($self->{storecfg}, $targetsid, $self->{node});
+
+ my $bwlimit = $self->get_bwlimit($sid, $targetsid);
+
+ $volhash->{$volid}->{ref} = defined($snapname) ? 'snapshot' : 'config';
+ $volhash->{$volid}->{snapshots} = 1 if defined($snapname);
+ $volhash->{$volid}->{targetsid} = $targetsid;
+ $volhash->{$volid}->{bwlimit} = $bwlimit;
+
+ my ($path, $owner) = PVE::Storage::path($self->{storecfg}, $volid);
+
+ die "owned by other guest (owner = $owner)\n"
+ if !$owner || ($owner != $self->{vmid});
+
+ if (defined($snapname)) {
+ # we cannot migrate shapshots on local storage
+ # exceptions: 'zfspool', 'btrfs'
+ if ($scfg->{type} eq 'zfspool' || $scfg->{type} eq 'btrfs') {
+ return;
+ }
+ die "non-migratable snapshot exists\n";
+ }
+ };
+
+ my $test_mp = sub {
+ my ($ms, $mountpoint, $snapname) = @_;
my $volid = $mountpoint->{volume};
- my ($storage, $volname) = PVE::Storage::parse_volume_id($volid);
- my $scfg = PVE::Storage::storage_check_node($self->{storecfg}, $storage);
+ # already checked in prepare
+ if ($mountpoint->{type} ne 'volume') {
+ $self->log('info', "ignoring shared '$mountpoint->{type}' mount point '$ms' ('$volid')")
+ if !$snapname;
+ return;
+ }
+
+ eval {
+ &$test_volid($volid, $snapname);
+ };
+
+ &$log_error($@, $volid) if $@;
+ };
+
+ # first unused / lost volumes owned by this container
+ my @sids = PVE::Storage::storage_ids($self->{storecfg});
+ foreach my $storeid (@sids) {
+ my $scfg = PVE::Storage::storage_config($self->{storecfg}, $storeid);
+ next if $scfg->{shared};
+ next if !PVE::Storage::storage_check_enabled($self->{storecfg}, $storeid, undef, 1);
+
+ # get list from PVE::Storage (for unreferenced volumes)
+ my $dl = PVE::Storage::vdisk_list($self->{storecfg}, $storeid, $vmid, undef, 'rootdir');
- if (!$scfg->{shared}) {
+ next if @{$dl->{$storeid}} == 0;
- $self->log('info', "copy mointpoint '$ms' ($volid) to node ' $self->{node}'");
- PVE::Storage::storage_migrate($self->{storecfg}, $volid, $self->{nodeip}, $storage);
- push @{$self->{volumes}}, $volid;
+ # check if storage is available on target node
+ my $targetsid = PVE::JSONSchema::map_id($self->{opts}->{storagemap}, $storeid);
+ my $target_scfg = PVE::Storage::storage_check_enabled($self->{storecfg}, $targetsid, $self->{node});
+
+ die "content type 'rootdir' is not available on storage '$targetsid'\n"
+ if !$target_scfg->{content}->{rootdir};
+
+ PVE::Storage::foreach_volid($dl, sub {
+ my ($volid, $sid, $volname) = @_;
+
+ $volhash->{$volid}->{ref} = 'storage';
+ $volhash->{$volid}->{targetsid} = $targetsid;
+ });
+ }
+
+ # then all volumes referenced in snapshots
+ foreach my $snapname (keys %{$conf->{snapshots}}) {
+ &$test_volid($conf->{snapshots}->{$snapname}->{'vmstate'}, 0, undef)
+ if defined($conf->{snapshots}->{$snapname}->{'vmstate'});
+ PVE::LXC::Config->foreach_volume($conf->{snapshots}->{$snapname}, $test_mp, $snapname);
+ }
+
+ # finally all current volumes
+ PVE::LXC::Config->foreach_volume_full($conf, { include_unused => 1 }, $test_mp);
+
+ # additional checks for local storage
+ foreach my $volid (keys %$volhash) {
+ eval {
+ my ($sid, $volname) = PVE::Storage::parse_volume_id($volid);
+ my $scfg = PVE::Storage::storage_config($self->{storecfg}, $sid);
+
+ my $migratable = ($scfg->{type} eq 'dir') || ($scfg->{type} eq 'zfspool')
+ || ($scfg->{type} eq 'lvmthin') || ($scfg->{type} eq 'lvm')
+ || ($scfg->{type} eq 'btrfs');
+
+ die "storage type '$scfg->{type}' not supported\n"
+ if !$migratable;
+
+ # image is a linked clone on local storage, se we can't migrate.
+ if (my $basename = (PVE::Storage::parse_volname($self->{storecfg}, $volid))[3]) {
+ die "clone of '$basename'";
+ }
+ };
+ &$log_error($@, $volid) if $@;
+ }
+
+ foreach my $volid (sort keys %$volhash) {
+ my $ref = $volhash->{$volid}->{ref};
+ if ($ref eq 'storage') {
+ $self->log('info', "found local volume '$volid' (via storage)\n");
+ } elsif ($ref eq 'config') {
+ $self->log('info', "found local volume '$volid' (in current VM config)\n");
+ } elsif ($ref eq 'snapshot') {
+ $self->log('info', "found local volume '$volid' (referenced by snapshot(s))\n");
} else {
- $self->log('info', "mointpoint '$ms' is on shared storage '$storage'");
+ $self->log('info', "found local volume '$volid'\n");
}
- });
+ }
+
+ foreach my $volid (sort keys %$volhash_errors) {
+ $self->log('warn', "can't migrate local volume '$volid': $volhash_errors->{$volid}");
+ }
+
+ if ($abort) {
+ die "can't migrate CT - check log\n";
+ }
- my $conffile = PVE::OpenVZ::config_file($vmid);
- my $newconffile = PVE::OpenVZ::config_file($vmid, $self->{node});
+ my $rep_volumes;
+
+ my $rep_cfg = PVE::ReplicationConfig->new();
+
+ if (my $jobcfg = $rep_cfg->find_local_replication_job($vmid, $self->{node})) {
+ die "can't live migrate VM with replicated volumes\n" if $self->{running};
+ my $start_time = time();
+ my $logfunc = sub { my ($msg) = @_; $self->log('info', $msg); };
+ $rep_volumes = PVE::Replication::run_replication(
+ 'PVE::LXC::Config', $jobcfg, $start_time, $start_time, $logfunc);
+ }
+
+ my $opts = $self->{opts};
+ foreach my $volid (keys %$volhash) {
+ next if $rep_volumes->{$volid};
+ my ($sid, $volname) = PVE::Storage::parse_volume_id($volid);
+ push @{$self->{volumes}}, $volid;
+
+ # JSONSchema and get_bandwidth_limit use kbps - storage_migrate bps
+ my $bwlimit = $volhash->{$volid}->{bwlimit};
+ $bwlimit = $bwlimit * 1024 if defined($bwlimit);
+
+ my $targetsid = $volhash->{$volid}->{targetsid};
+
+ my $new_volid = eval {
+ my $storage_migrate_opts = {
+ 'ratelimit_bps' => $bwlimit,
+ 'insecure' => $opts->{migration_type} eq 'insecure',
+ 'with_snapshots' => $volhash->{$volid}->{snapshots},
+ 'allow_rename' => 1,
+ };
+
+ my $logfunc = sub { $self->log('info', $_[0]); };
+ return PVE::Storage::storage_migrate(
+ $self->{storecfg},
+ $volid,
+ $self->{ssh_info},
+ $targetsid,
+ $storage_migrate_opts,
+ $logfunc,
+ );
+ };
+
+ if (my $err = $@) {
+ die "storage migration for '$volid' to storage '$targetsid' failed - $err\n";
+ }
+
+ $self->{volume_map}->{$volid} = $new_volid;
+ $self->log('info', "volume '$volid' is '$new_volid' on the target\n");
+
+ eval { PVE::Storage::deactivate_volumes($self->{storecfg}, [$volid]); };
+ if (my $err = $@) {
+ $self->log('warn', $err);
+ }
+ }
if ($self->{running}) {
die "implement me";
PVE::LXC::umount_all($vmid, $self->{storecfg}, $conf);
- # move config
- die "Failed to move config to node '$self->{node}' - rename failed: $!\n"
- if !rename($conffile, $newconffile);
+ #to be sure there are no active volumes
+ my $vollist = PVE::LXC::Config->get_vm_volumes($conf);
+ PVE::Storage::deactivate_volumes($self->{storecfg}, $vollist);
+
+ # transfer replication state before moving config
+ $self->transfer_replication_state() if $rep_volumes;
+ PVE::LXC::Config->update_volume_ids($conf, $self->{volume_map});
+ PVE::LXC::Config->write_config($vmid, $conf);
+ PVE::LXC::Config->move_config_to_node($vmid, $self->{node});
+ $self->{conf_migrated} = 1;
+ $self->switch_replication_job_target() if $rep_volumes;
}
sub phase1_cleanup {
$self->log('info', "start final cleanup");
- my $conf = $self->{vmconf};
- delete $conf->{lock};
-
- eval { PVE::LXC::write_config($vmid, $conf); };
- if (my $err = $@) {
- $self->log('err', $err);
+ if (!$self->{conf_migrated}) {
+ eval { PVE::LXC::Config->remove_lock($vmid, 'migrate'); };
+ if (my $err = $@) {
+ $self->log('err', $err);
+ }
+ # in restart mode, we start the container on the source node
+ # on migration error
+ if ($self->{opts}->{restart} && $self->{was_running}) {
+ $self->log('info', "start container on source node");
+ my $skiplock = 1;
+ PVE::LXC::vm_start($vmid, $self->{vmconf}, $skiplock);
+ }
+ } else {
+ my $cmd = [ @{$self->{rem_ssh}}, 'pct', 'unlock', $vmid ];
+ $self->cmd_logerr($cmd, errmsg => "failed to clear migrate lock");
+
+ # in restart mode, we start the container on the target node
+ # after migration
+ if ($self->{opts}->{restart} && $self->{was_running}) {
+ $self->log('info', "start container on target node");
+ my $cmd = [ @{$self->{rem_ssh}}, 'pct', 'start', $vmid];
+ $self->cmd($cmd);
+ }
}
+
}
1;
projects / pve-container.git / blobdiff