use strict;
use warnings;
-use File::Path;
+
use File::Basename;
-use PVE::INotify;
-use PVE::VZDump;
+use File::Path;
+use IO::File;
+use IPC::Open3;
+
use PVE::Cluster qw(cfs_read_file);
-use PVE::Tools;
+use PVE::INotify;
+use PVE::IPCC;
+use PVE::JSONSchema;
+use PVE::QMPClient;
+use PVE::Storage::Plugin;
+use PVE::Storage::PBSPlugin;
use PVE::Storage;
+use PVE::Tools;
+use PVE::VZDump;
+
use PVE::QemuServer;
-use IO::File;
+use PVE::QemuServer::Machine;
+use PVE::QemuServer::Monitor qw(mon_cmd);
use base qw (PVE::VZDump::Plugin);
sub new {
my ($class, $vzdump) = @_;
-
+
PVE::VZDump::check_bin('qm');
- my $self = bless { vzdump => $vzdump };
+ my $self = bless { vzdump => $vzdump }, $class;
$self->{vmlist} = PVE::QemuServer::vzlist();
$self->{storecfg} = PVE::Storage::config();
$task->{disks} = [];
- my $conf = $self->{vmlist}->{$vmid} = PVE::QemuServer::load_config($vmid);
+ my $conf = $self->{vmlist}->{$vmid} = PVE::QemuConfig->load_config($vmid);
- $task->{hostname} = $conf->{name};
+ $self->loginfo("VM Name: $conf->{name}")
+ if defined($conf->{name});
- my $lvmmap = PVE::VZDump::get_lvm_mapping();
-
- my $hostname = PVE::INotify::nodename();
+ $self->{vm_was_running} = 1;
+ if (!PVE::QemuServer::check_running($vmid)) {
+ $self->{vm_was_running} = 0;
+ }
- my $ind = {};
- my $mountinfo = {};
- my $mountind = 0;
+ $task->{hostname} = $conf->{name};
- my $snapshot_count = 0;
+ my $hostname = PVE::INotify::nodename();
+ my $vollist = [];
+ my $drivehash = {};
PVE::QemuServer::foreach_drive($conf, sub {
my ($ds, $drive) = @_;
- return if PVE::QemuServer::drive_is_cdrom ($drive);
+ return if PVE::QemuServer::drive_is_cdrom($drive);
- if (defined($drive->{backup}) && $drive->{backup} eq "no") {
- $self->loginfo("exclude disk '$ds' (backup=no)");
- return;
- }
-
my $volid = $drive->{file};
- my $path;
-
- my ($storeid, $volname) = PVE::Storage::parse_volume_id ($volid, 1);
- if ($storeid) {
- PVE::Storage::activate_storage ($self->{storecfg}, $storeid);
- $path = PVE::Storage::path ($self->{storecfg}, $volid);
+ if (defined($drive->{backup}) && !$drive->{backup}) {
+ $self->loginfo("exclude disk '$ds' '$volid' (backup=no)");
+ return;
+ } elsif ($self->{vm_was_running} && $drive->{iothread}) {
+ if (!PVE::QemuServer::Machine::runs_at_least_qemu_version($vmid, 4, 0, 1)) {
+ die "disk '$ds' '$volid' (iothread=on) can't use backup feature with running QEMU " .
+ "version < 4.0.1! Either set backup=no for this drive or upgrade QEMU and restart VM\n";
+ }
+ } elsif ($ds =~ m/^efidisk/ && (!defined($conf->{bios}) || $conf->{bios} ne 'ovmf')) {
+ $self->loginfo("excluding '$ds' (efidisks can only be backed up when BIOS is set to 'ovmf')");
+ return;
} else {
- $path = $volid;
+ my $log = "include disk '$ds' '$volid'";
+ if (defined $drive->{size}) {
+ my $readable_size = PVE::JSONSchema::format_size($drive->{size});
+ $log .= " $readable_size";
+ }
+ $self->loginfo($log);
}
- return if !$path;
-
- die "no such volume '$volid'\n" if ! -e $path;
-
- my $diskinfo = { path => $path , volid => $volid, storeid => $storeid,
- snappath => $path, virtdev => $ds };
-
- if (-b $path) {
-
- $diskinfo->{type} = 'block';
+ my ($storeid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
+ push @$vollist, $volid if $storeid;
+ $drivehash->{$ds} = $drive;
+ });
- $diskinfo->{filename} = "vm-disk-$ds.raw";
+ PVE::Storage::activate_volumes($self->{storecfg}, $vollist);
- if ($mode eq 'snapshot') {
- my ($lvmvg, $lvmlv) = @{$lvmmap->{$path}} if defined ($lvmmap->{$path});
- die ("mode failure - unable to detect lvm volume group\n") if !$lvmvg;
+ foreach my $ds (sort keys %$drivehash) {
+ my $drive = $drivehash->{$ds};
- $ind->{$lvmvg} = 0 if !defined $ind->{$lvmvg};
- $diskinfo->{snapname} = "vzsnap-$hostname-$ind->{$lvmvg}";
- $diskinfo->{snapdev} = "/dev/$lvmvg/$diskinfo->{snapname}";
- $diskinfo->{lvmvg} = $lvmvg;
- $diskinfo->{lvmlv} = $lvmlv;
- $diskinfo->{snappath} = $diskinfo->{snapdev};
- $ind->{$lvmvg}++;
+ my $volid = $drive->{file};
+ my ($storeid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
- $snapshot_count++;
- }
+ my $path = $volid;
+ if ($storeid) {
+ $path = PVE::Storage::path($self->{storecfg}, $volid);
+ }
+ next if !$path;
+
+ my ($size, $format) = eval { PVE::Storage::volume_size_info($self->{storecfg}, $volid, 5) };
+ die "no such volume '$volid'\n" if $@;
+
+ my $diskinfo = {
+ path => $path,
+ volid => $volid,
+ storeid => $storeid,
+ format => $format,
+ virtdev => $ds,
+ qmdevice => "drive-$ds",
+ };
+ if (-b $path) {
+ $diskinfo->{type} = 'block';
} else {
-
$diskinfo->{type} = 'file';
-
- my (undef, $dir, $ext) = fileparse ($path, qr/\.[^.]*/);
-
- $diskinfo->{filename} = "vm-disk-$ds$ext";
-
- if ($mode eq 'snapshot') {
-
- my ($srcdev, $lvmpath, $lvmvg, $lvmlv, $fstype) =
- PVE::VZDump::get_lvm_device ($dir, $lvmmap);
-
- my $targetdev = PVE::VZDump::get_lvm_device ($task->{dumpdir}, $lvmmap);
-
- die ("mode failure - unable to detect lvm volume group\n") if !$lvmvg;
- die ("mode failure - wrong lvm mount point '$lvmpath'\n") if $dir !~ m|/?$lvmpath/?|;
- die ("mode failure - unable to dump into snapshot (use option --dumpdir)\n")
- if $targetdev eq $srcdev;
-
- $ind->{$lvmvg} = 0 if !defined $ind->{$lvmvg};
-
- my $info = $mountinfo->{$lvmpath};
- if (!$info) {
- my $snapname = "vzsnap-$hostname-$ind->{$lvmvg}";
- my $snapdev = "/dev/$lvmvg/$snapname";
- $mountinfo->{$lvmpath} = $info = {
- snapdev => $snapdev,
- snapname => $snapname,
- mountpoint => "/mnt/vzsnap$mountind",
- };
- $ind->{$lvmvg}++;
- $mountind++;
-
- $snapshot_count++;
- }
-
- $diskinfo->{snapdev} = $info->{snapdev};
- $diskinfo->{snapname} = $info->{snapname};
- $diskinfo->{mountpoint} = $info->{mountpoint};
-
- $diskinfo->{lvmvg} = $lvmvg;
- $diskinfo->{lvmlv} = $lvmlv;
-
- $diskinfo->{fstype} = $fstype;
- $diskinfo->{lvmpath} = $lvmpath;
-
- $diskinfo->{snappath} = $path;
- $diskinfo->{snappath} =~ s|/?$lvmpath/?|$diskinfo->{mountpoint}/|;
- }
}
push @{$task->{disks}}, $diskinfo;
-
- });
-
- $task->{snapshot_count} = $snapshot_count;
+ }
}
sub vm_status {
my ($self, $vmid) = @_;
my $running = PVE::QemuServer::check_running($vmid) ? 1 : 0;
-
- return wantarray ? ($running, $running ? 'running' : 'stopped') : $running;
+
+ return wantarray ? ($running, $running ? 'running' : 'stopped') : $running;
}
sub lock_vm {
my $wait = $opts->{stopwait} * 60;
# send shutdown and wait
- $self->cmd ("qm shutdown $vmid --skiplock --timeout $wait");
+ $self->cmd ("qm shutdown $vmid --skiplock --keepActive --timeout $wait");
}
sub start_vm {
$self->cmd ("qm resume $vmid --skiplock");
}
-sub snapshot_alloc {
- my ($self, $storeid, $name, $size, $srcdev) = @_;
+sub assemble {
+ my ($self, $task, $vmid) = @_;
+
+ my $conffile = PVE::QemuConfig->config_file($vmid);
+
+ my $outfile = "$task->{tmpdir}/qemu-server.conf";
+ my $firewall_src = "/etc/pve/firewall/$vmid.fw";
+ my $firewall_dest = "$task->{tmpdir}/qemu-server.fw";
+
+ my $outfd = IO::File->new (">$outfile") ||
+ die "unable to open '$outfile'";
+ my $conffd = IO::File->new ($conffile, 'r') ||
+ die "unable open '$conffile'";
+
+ my $found_snapshot;
+ my $found_pending;
+ while (defined (my $line = <$conffd>)) {
+ next if $line =~ m/^\#vzdump\#/; # just to be sure
+ next if $line =~ m/^\#qmdump\#/; # just to be sure
+ if ($line =~ m/^\[(.*)\]\s*$/) {
+ if ($1 =~ m/PENDING/i) {
+ $found_pending = 1;
+ } else {
+ $found_snapshot = 1;
+ }
+ }
- my $cmd = "lvcreate --size ${size}M --snapshot --name '$name' '$srcdev'";
+ next if $found_snapshot; # skip all snapshots data
+ next if $found_pending; # skip all pending changes
- if ($storeid) {
+ if ($line =~ m/^unused\d+:\s*(\S+)\s*/) {
+ $self->loginfo("skip unused drive '$1' (not included into backup)");
+ next;
+ }
+ next if $line =~ m/^lock:/ || $line =~ m/^parent:/;
- my $scfg = PVE::Storage::storage_config ($self->{storecfg}, $storeid);
+ print $outfd $line;
+ }
- # lock shared storage
- return PVE::Storage::cluster_lock_storage ($storeid, $scfg->{shared}, undef, sub {
- $self->cmd ($cmd);
- });
+ foreach my $di (@{$task->{disks}}) {
+ if ($di->{type} eq 'block' || $di->{type} eq 'file') {
+ my $storeid = $di->{storeid} || '';
+ my $format = $di->{format} || '';
+ print $outfd "#qmdump#map:$di->{virtdev}:$di->{qmdevice}:$storeid:$format:\n";
+ } else {
+ die "internal error";
+ }
+ }
+
+ if ($found_snapshot) {
+ $self->loginfo("snapshots found (not included into backup)");
+ }
+
+ if ($found_pending) {
+ $self->loginfo("pending configuration changes found (not included into backup)");
+ }
+
+ PVE::Tools::file_copy($firewall_src, $firewall_dest) if -f $firewall_src;
+}
+
+sub archive {
+ my ($self, $task, $vmid, $filename, $comp) = @_;
+
+ my $opts = $self->{vzdump}->{opts};
+
+ my $scfg = $opts->{scfg};
+
+ if ($scfg->{type} eq 'pbs') {
+ $self->archive_pbs($task, $vmid);
} else {
- $self->cmd ($cmd);
+ $self->archive_vma($task, $vmid, $filename, $comp);
}
}
-sub snapshot_free {
- my ($self, $storeid, $name, $snapdev, $noerr) = @_;
+my $query_backup_status_loop = sub {
+ my ($self, $vmid, $job_uuid) = @_;
- my $cmd = ['lvremove', '-f', $snapdev];
+ my $status;
+ my $starttime = time ();
+ my $last_per = -1;
+ my $last_total = 0;
+ my $last_zero = 0;
+ my $last_transferred = 0;
+ my $last_time = time();
+ my $transferred;
+
+ while(1) {
+ $status = mon_cmd($vmid, 'query-backup');
+ my $total = $status->{total} || 0;
+ $transferred = $status->{transferred} || 0;
+ my $per = $total ? int(($transferred * 100)/$total) : 0;
+ my $zero = $status->{'zero-bytes'} || 0;
+ my $zero_per = $total ? int(($zero * 100)/$total) : 0;
+
+ die "got unexpected uuid\n" if !$status->{uuid} || ($status->{uuid} ne $job_uuid);
+
+ my $ctime = time();
+ my $duration = $ctime - $starttime;
+
+ my $rbytes = $transferred - $last_transferred;
+ my $wbytes = $rbytes - ($zero - $last_zero);
+
+ my $timediff = ($ctime - $last_time) || 1; # fixme
+ my $mbps_read = ($rbytes > 0) ?
+ int(($rbytes/$timediff)/(1000*1000)) : 0;
+ my $mbps_write = ($wbytes > 0) ?
+ int(($wbytes/$timediff)/(1000*1000)) : 0;
+
+ my $statusline = "status: $per% ($transferred/$total), " .
+ "sparse ${zero_per}% ($zero), duration $duration, " .
+ "read/write $mbps_read/$mbps_write MB/s";
+ my $res = $status->{status} || 'unknown';
+ if ($res ne 'active') {
+ $self->loginfo($statusline);
+ die(($status->{errmsg} || "unknown error") . "\n")
+ if $res eq 'error';
+ die "got unexpected status '$res'\n"
+ if $res ne 'done';
+ die "got wrong number of transfered bytes ($total != $transferred)\n"
+ if ($res eq 'done') && ($total != $transferred);
- # loop, because we often get 'LV in use: not deactivating'
- # we use run_command() because we do not want to log errors here
- my $wait = 1;
- while(-b $snapdev) {
- eval {
- if ($storeid) {
- my $scfg = PVE::Storage::storage_config ($self->{storecfg}, $storeid);
- # lock shared storage
- return PVE::Storage::cluster_lock_storage($storeid, $scfg->{shared}, undef, sub {
- PVE::Tools::run_command($cmd, outfunc => sub {}, errfunc => {});
- });
- } else {
- PVE::Tools::run_command($cmd, outfunc => sub {}, errfunc => {});
- }
- };
- my $err = $@;
- last if !$err;
- if ($wait >= 64) {
- $self->logerr($err);
- die $@ if !$noerr;
last;
}
- $self->loginfo("lvremove failed - trying again in $wait seconds") if $wait >= 8;
- sleep($wait);
- $wait = $wait*2;
+ if ($per != $last_per && ($timediff > 2)) {
+ $self->loginfo($statusline);
+ $last_per = $per;
+ $last_total = $total if $total;
+ $last_zero = $zero if $zero;
+ $last_transferred = $transferred if $transferred;
+ $last_time = $ctime;
+ }
+ sleep(1);
}
-}
-sub snapshot {
+ my $duration = time() - $starttime;
+ if ($transferred && $duration) {
+ my $mb = int($transferred/(1000*1000));
+ my $mbps = int(($transferred/$duration)/(1000*1000));
+ $self->loginfo("transferred $mb MB in $duration seconds ($mbps MB/s)");
+ }
+};
+
+sub archive_pbs {
my ($self, $task, $vmid) = @_;
- my $opts = $self->{vzdump}->{opts};
+ my $conffile = "$task->{tmpdir}/qemu-server.conf";
+ my $firewall = "$task->{tmpdir}/qemu-server.fw";
- my $mounts = {};
+ my $opts = $self->{vzdump}->{opts};
- foreach my $di (@{$task->{disks}}) {
- if ($di->{type} eq 'block') {
+ my $scfg = $opts->{scfg};
- if (-b $di->{snapdev}) {
- $self->loginfo ("trying to remove stale snapshot '$di->{snapdev}'");
- $self->snapshot_free ($di->{storeid}, $di->{snapname}, $di->{snapdev}, 1);
- }
+ my $starttime = time();
- $di->{cleanup_lvm} = 1;
- $self->snapshot_alloc ($di->{storeid}, $di->{snapname}, $opts->{size},
- "/dev/$di->{lvmvg}/$di->{lvmlv}");
+ my $diskcount = scalar(@{$task->{disks}});
- } elsif ($di->{type} eq 'file') {
+ my $server = $scfg->{server};
+ my $datastore = $scfg->{datastore};
+ my $username = $scfg->{username} // 'root@pam';
+ my $fingerprint = $scfg->{fingerprint};
- next if defined ($mounts->{$di->{mountpoint}}); # already mounted
+ my $repo = "$username\@$server:$datastore";
+ my $password = PVE::Storage::PBSPlugin::pbs_get_password($scfg, $opts->{storage});
- if (-b $di->{snapdev}) {
- $self->loginfo ("trying to remove stale snapshot '$di->{snapdev}'");
-
- $self->cmd_noerr ("umount $di->{mountpoint}");
- $self->snapshot_free ($di->{storeid}, $di->{snapname}, $di->{snapdev}, 1);
+ if (PVE::QemuConfig->is_template($self->{vmlist}->{$vmid}) || !$diskcount) {
+ my @pathlist;
+ foreach my $di (@{$task->{disks}}) {
+ if ($di->{type} eq 'block' || $di->{type} eq 'file') {
+ push @pathlist, "$di->{qmdevice}.img:$di->{path}";
+ } else {
+ die "implement me";
}
+ }
- mkpath $di->{mountpoint}; # create mount point for lvm snapshot
+ if (!$diskcount) {
+ $self->loginfo("backup contains no disks");
+ }
+
+ local $ENV{PBS_PASSWORD} = $password;
+ my $cmd = [
+ '/usr/bin/proxmox-backup-client',
+ 'backup',
+ '--repository', $repo,
+ '--backup-type', 'vm',
+ '--backup-id', "$vmid",
+ '--backup-time', $task->{backup_time},
+ ];
- $di->{cleanup_lvm} = 1;
+ push @$cmd, '--fingerprint', $fingerprint if defined($fingerprint);
- $self->snapshot_alloc ($di->{storeid}, $di->{snapname}, $opts->{size},
- "/dev/$di->{lvmvg}/$di->{lvmlv}");
-
- my $mopts = $di->{fstype} eq 'xfs' ? "-o nouuid" : '';
+ push @$cmd, "qemu-server.conf:$conffile";
+ push @$cmd, "fw.conf:$firewall" if -e $firewall;
+ push @$cmd, @pathlist if scalar(@pathlist);
- $di->{snapshot_mount} = 1;
+ $self->loginfo("starting template backup");
+ $self->loginfo(join(' ', @$cmd));
- $self->cmd ("mount -t $di->{fstype} $mopts $di->{snapdev} $di->{mountpoint}");
+ $self->cmd($cmd);
- $mounts->{$di->{mountpoint}} = 1;
+ return;
+ }
+ my $devlist = '';
+ foreach my $di (@{$task->{disks}}) {
+ if ($di->{type} eq 'block' || $di->{type} eq 'file') {
+ $devlist .= $devlist ? ",$di->{qmdevice}" : $di->{qmdevice};
} else {
die "implement me";
}
}
-}
-sub get_size {
- my $path = shift;
-
- if (-f $path) {
- return -s $path;
- } elsif (-b $path) {
- my $fh = IO::File->new ($path, "r");
- die "unable to open '$path' to detect device size\n" if !$fh;
- my $size = sysseek $fh, 0, 2;
- $fh->close();
- die "unable to detect device size for '$path'\n" if !$size;
- return $size;
+ my $stop_after_backup;
+ my $resume_on_backup;
+
+ my $skiplock = 1;
+ my $vm_is_running = PVE::QemuServer::check_running($vmid);
+ if (!$vm_is_running) {
+ eval {
+ $self->loginfo("starting kvm to execute backup task");
+ PVE::QemuServer::vm_start($self->{storecfg}, $vmid, undef,
+ $skiplock, undef, 1);
+ if ($self->{vm_was_running}) {
+ $resume_on_backup = 1;
+ } else {
+ $stop_after_backup = 1;
+ }
+ };
+ if (my $err = $@) {
+ die $err;
+ }
}
-}
-sub assemble {
- my ($self, $task, $vmid) = @_;
+ my $backup_job_uuid;
- my $conffile = PVE::QemuServer::config_file ($vmid);
+ my $interrupt_msg = "interrupted by signal\n";
+ eval {
+ $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
+ die $interrupt_msg;
+ };
- my $outfile = "$task->{tmpdir}/qemu-server.conf";
+ my $agent_running = 0;
- my $outfd;
- my $conffd;
+ if ($self->{vmlist}->{$vmid}->{agent} && $vm_is_running) {
+ $agent_running = PVE::QemuServer::qga_check_running($vmid);
+ }
- eval {
+ if ($agent_running){
+ eval { mon_cmd($vmid, "guest-fsfreeze-freeze"); };
+ if (my $err = $@) {
+ $self->logerr($err);
+ }
+ }
+
+ eval {
+
+ my $params = {
+ format => "pbs",
+ 'backup-file' => $repo,
+ 'backup-id' => "$vmid",
+ 'backup-time' => $task->{backup_time},
+ password => $password,
+ devlist => $devlist,
+ 'config-file' => $conffile,
+ };
+ $params->{fingerprint} = $fingerprint if defined($fingerprint);
+ $params->{'firewall-file'} = $firewall if -e $firewall;
+ my $res = mon_cmd($vmid, "backup", %$params);
+ $backup_job_uuid = $res->{UUID};
+ };
- $outfd = IO::File->new (">$outfile") ||
- die "unable to open '$outfile'";
- $conffd = IO::File->new ($conffile, 'r') ||
- die "unable open '$conffile'";
+ my $qmperr = $@;
- while (defined (my $line = <$conffd>)) {
- next if $line =~ m/^\#vzdump\#/; # just to be sure
- print $outfd $line;
+ if ($agent_running){
+ eval { mon_cmd($vmid, "guest-fsfreeze-thaw"); };
+ if (my $err = $@) {
+ $self->logerr($err);
+ }
}
- foreach my $di (@{$task->{disks}}) {
- if ($di->{type} eq 'block' || $di->{type} eq 'file') {
- my $size = get_size ($di->{snappath});
- my $storeid = $di->{storeid} || '';
- print $outfd "#vzdump#map:$di->{virtdev}:$di->{filename}:$size:$storeid:\n";
+ die $qmperr if $qmperr;
+
+ die "got no uuid for backup task\n" if !defined($backup_job_uuid);
+
+ $self->loginfo("started backup task '$backup_job_uuid'");
+
+ if ($resume_on_backup) {
+ if (my $stoptime = $task->{vmstoptime}) {
+ my $delay = time() - $task->{vmstoptime};
+ $task->{vmstoptime} = undef; # avoid printing 'online after ..' twice
+ $self->loginfo("resuming VM again after $delay seconds");
} else {
- die "internal error";
+ $self->loginfo("resuming VM again");
}
+ mon_cmd($vmid, 'cont');
}
+
+ $query_backup_status_loop->($self, $vmid, $backup_job_uuid);
};
my $err = $@;
- close ($outfd) if $outfd;
- close ($conffd) if $conffd;
-
+ if ($err) {
+ $self->logerr($err);
+ if (defined($backup_job_uuid)) {
+ $self->loginfo("aborting backup job");
+ eval { mon_cmd($vmid, 'backup-cancel'); };
+ if (my $err1 = $@) {
+ $self->logerr($err1);
+ }
+ }
+ }
+
+ if ($stop_after_backup) {
+ # stop if not running
+ eval {
+ my $resp = mon_cmd($vmid, 'query-status');
+ my $status = $resp && $resp->{status} ? $resp->{status} : 'unknown';
+ if ($status eq 'prelaunch') {
+ $self->loginfo("stopping kvm after backup task");
+ PVE::QemuServer::vm_stop($self->{storecfg}, $vmid, $skiplock);
+ } else {
+ $self->loginfo("kvm status changed after backup ('$status')" .
+ " - keep VM running");
+ }
+ }
+ }
+
die $err if $err;
}
-sub archive {
- my ($self, $task, $vmid, $filename) = @_;
+sub archive_vma {
+ my ($self, $task, $vmid, $filename, $comp) = @_;
my $conffile = "$task->{tmpdir}/qemu-server.conf";
+ my $firewall = "$task->{tmpdir}/qemu-server.fw";
my $opts = $self->{vzdump}->{opts};
- my $starttime = time ();
+ my $starttime = time();
+
+ my $speed = 0;
+ if ($opts->{bwlimit}) {
+ $speed = $opts->{bwlimit}*1024;
+ }
+
+ my $diskcount = scalar(@{$task->{disks}});
+
+ if (PVE::QemuConfig->is_template($self->{vmlist}->{$vmid}) || !$diskcount) {
+ my @pathlist;
+ foreach my $di (@{$task->{disks}}) {
+ if ($di->{type} eq 'block' || $di->{type} eq 'file') {
+ push @pathlist, "$di->{qmdevice}=$di->{path}";
+ } else {
+ die "implement me";
+ }
+ }
- my $fh;
+ if (!$diskcount) {
+ $self->loginfo("backup contains no disks");
+ }
+
+ my $outcmd;
+ if ($comp) {
+ $outcmd = "exec:$comp";
+ } else {
+ $outcmd = "exec:cat";
+ }
- my @filea = ($conffile, 'qemu-server.conf'); # always first file in tar
+ $outcmd .= " > $filename" if !$opts->{stdout};
+
+ my $cmd = ['/usr/bin/vma', 'create', '-v', '-c', $conffile];
+ push @$cmd, '-c', $firewall if -e $firewall;
+ push @$cmd, $outcmd, @pathlist;
+
+ $self->loginfo("starting template backup");
+ $self->loginfo(join(' ', @$cmd));
+
+ if ($opts->{stdout}) {
+ $self->cmd($cmd, output => ">&=" . fileno($opts->{stdout}));
+ } else {
+ $self->cmd($cmd);
+ }
+
+ return;
+ }
+
+
+ my $devlist = '';
foreach my $di (@{$task->{disks}}) {
if ($di->{type} eq 'block' || $di->{type} eq 'file') {
- push @filea, $di->{snappath}, $di->{filename};
+ $devlist .= $devlist ? ",$di->{qmdevice}" : $di->{qmdevice};
} else {
die "implement me";
}
}
- my $files = join (' ', map { "'$_'" } @filea);
-
- my $cmd = "/usr/lib/qemu-server/vmtar $files";
- my $bwl = $opts->{bwlimit}*1024; # bandwidth limit for cstream
- $cmd .= "|cstream -t $bwl" if $opts->{bwlimit};
- $cmd .= "|gzip" if $opts->{compress};
+ my $stop_after_backup;
+ my $resume_on_backup;
- if ($opts->{stdout}) {
- $self->cmd ($cmd, output => ">&=" . fileno($opts->{stdout}));
- } else {
- $self->cmd ("$cmd >$filename");
+ my $skiplock = 1;
+ my $vm_is_running = PVE::QemuServer::check_running($vmid);
+ if (!$vm_is_running) {
+ eval {
+ $self->loginfo("starting kvm to execute backup task");
+ PVE::QemuServer::vm_start($self->{storecfg}, $vmid, undef,
+ $skiplock, undef, 1);
+ if ($self->{vm_was_running}) {
+ $resume_on_backup = 1;
+ } else {
+ $stop_after_backup = 1;
+ }
+ };
+ if (my $err = $@) {
+ die $err;
+ }
+ }
+
+ my $cpid;
+ my $backup_job_uuid;
+
+ my $interrupt_msg = "interrupted by signal\n";
+ eval {
+ $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
+ die $interrupt_msg;
+ };
+
+ my $qmpclient = PVE::QMPClient->new();
+
+ my $backup_cb = sub {
+ my ($vmid, $resp) = @_;
+ $backup_job_uuid = $resp->{return}->{UUID};
+ };
+
+ my $outfh;
+ if ($opts->{stdout}) {
+ $outfh = $opts->{stdout};
+ } else {
+ $outfh = IO::File->new($filename, "w") ||
+ die "unable to open file '$filename' - $!\n";
+ }
+
+ my $outfileno;
+ if ($comp) {
+ my @pipefd = POSIX::pipe();
+ $cpid = fork();
+ die "unable to fork worker - $!" if !defined($cpid);
+ if ($cpid == 0) {
+ eval {
+ POSIX::close($pipefd[1]);
+ # redirect STDIN
+ my $fd = fileno(STDIN);
+ close STDIN;
+ POSIX::close(0) if $fd != 0;
+ die "unable to redirect STDIN - $!"
+ if !open(STDIN, "<&", $pipefd[0]);
+
+ # redirect STDOUT
+ $fd = fileno(STDOUT);
+ close STDOUT;
+ POSIX::close (1) if $fd != 1;
+
+ die "unable to redirect STDOUT - $!"
+ if !open(STDOUT, ">&", fileno($outfh));
+
+ exec($comp);
+ die "fork compressor '$comp' failed\n";
+ };
+ if (my $err = $@) {
+ $self->logerr($err);
+ POSIX::_exit(1);
+ }
+ POSIX::_exit(0);
+ kill(-9, $$);
+ } else {
+ POSIX::close($pipefd[0]);
+ $outfileno = $pipefd[1];
+ }
+ } else {
+ $outfileno = fileno($outfh);
+ }
+
+ my $add_fd_cb = sub {
+ my ($vmid, $resp) = @_;
+
+ my $params = {
+ 'backup-file' => "/dev/fdname/backup",
+ speed => $speed,
+ 'config-file' => $conffile,
+ devlist => $devlist
+ };
+
+ $params->{'firewall-file'} = $firewall if -e $firewall;
+ $qmpclient->queue_cmd($vmid, $backup_cb, 'backup', %$params);
+ };
+
+ $qmpclient->queue_cmd($vmid, $add_fd_cb, 'getfd',
+ fd => $outfileno, fdname => "backup");
+
+ my $agent_running = 0;
+
+ if ($self->{vmlist}->{$vmid}->{agent} && $vm_is_running) {
+ $agent_running = PVE::QemuServer::qga_check_running($vmid);
+ $self->loginfo("skipping guest-agent 'fs-freeze', agent configured but not running?")
+ if !$agent_running;
+ }
+
+ if ($agent_running){
+ $self->loginfo("issuing guest-agent 'fs-freeze' command");
+ eval { mon_cmd($vmid, "guest-fsfreeze-freeze"); };
+ if (my $err = $@) {
+ $self->logerr($err);
+ }
+ }
+
+ eval { $qmpclient->queue_execute(30) };
+ my $qmperr = $@;
+
+ if ($agent_running){
+ $self->loginfo("issuing guest-agent 'fs-thaw' command");
+ eval { mon_cmd($vmid, "guest-fsfreeze-thaw"); };
+ if (my $err = $@) {
+ $self->logerr($err);
+ }
+ }
+ die $qmperr if $qmperr;
+ die $qmpclient->{errors}->{$vmid} if $qmpclient->{errors}->{$vmid};
+
+ if ($cpid) {
+ POSIX::close($outfileno) == 0 ||
+ die "close output file handle failed\n";
+ }
+
+ die "got no uuid for backup task\n" if !defined($backup_job_uuid);
+
+ $self->loginfo("started backup task '$backup_job_uuid'");
+
+ if ($resume_on_backup) {
+ if (my $stoptime = $task->{vmstoptime}) {
+ my $delay = time() - $task->{vmstoptime};
+ $task->{vmstoptime} = undef; # avoid printing 'online after ..' twice
+ $self->loginfo("resuming VM again after $delay seconds");
+ } else {
+ $self->loginfo("resuming VM again");
+ }
+ mon_cmd($vmid, 'cont');
+ }
+
+ $query_backup_status_loop->($self, $vmid, $backup_job_uuid);
+ };
+ my $err = $@;
+
+ if ($err) {
+ $self->logerr($err);
+ if (defined($backup_job_uuid)) {
+ $self->loginfo("aborting backup job");
+ eval { mon_cmd($vmid, 'backup-cancel'); };
+ if (my $err1 = $@) {
+ $self->logerr($err1);
+ }
+ }
+ }
+
+ if ($stop_after_backup) {
+ # stop if not running
+ eval {
+ my $resp = mon_cmd($vmid, 'query-status');
+ my $status = $resp && $resp->{status} ? $resp->{status} : 'unknown';
+ if ($status eq 'prelaunch') {
+ $self->loginfo("stopping kvm after backup task");
+ PVE::QemuServer::vm_stop($self->{storecfg}, $vmid, $skiplock);
+ } else {
+ $self->loginfo("kvm status changed after backup ('$status')" .
+ " - keep VM running");
+ }
+ }
+ }
+
+ if ($err) {
+ if ($cpid) {
+ kill(9, $cpid);
+ waitpid($cpid, 0);
+ }
+ die $err;
+ }
+
+ if ($cpid && (waitpid($cpid, 0) > 0)) {
+ my $stat = $?;
+ my $ec = $stat >> 8;
+ my $signal = $stat & 127;
+ if ($ec || $signal) {
+ die "$comp failed - wrong exit status $ec" .
+ ($signal ? " (signal $signal)\n" : "\n");
+ }
}
}
+sub snapshot {
+ my ($self, $task, $vmid) = @_;
+
+ # nothing to do
+}
+
sub cleanup {
my ($self, $task, $vmid) = @_;
- foreach my $di (@{$task->{disks}}) {
-
- if ($di->{snapshot_mount}) {
- $self->cmd_noerr ("umount $di->{mountpoint}");
- }
-
- if ($di->{cleanup_lvm}) {
- if (-b $di->{snapdev}) {
- if ($di->{type} eq 'block') {
- $self->snapshot_free ($di->{storeid}, $di->{snapname}, $di->{snapdev}, 1);
- } elsif ($di->{type} eq 'file') {
- $self->snapshot_free ($di->{storeid}, $di->{snapname}, $di->{snapdev}, 1);
- }
- }
- }
- }
+ # nothing to do ?
}
1;
projects / qemu-server.git / blobdiff