mirror of
https://git.proxmox.com/git/qemu-server
synced 2025-04-30 03:50:47 +00:00
523 lines
12 KiB
Perl
523 lines
12 KiB
Perl
package PVE::VZDump::QemuServer;
|
|
|
|
use strict;
|
|
use warnings;
|
|
use File::Path;
|
|
use File::Basename;
|
|
use PVE::INotify;
|
|
use PVE::VZDump;
|
|
use PVE::IPCC;
|
|
use PVE::Cluster qw(cfs_read_file);
|
|
use PVE::Tools;
|
|
use PVE::Storage::Plugin;
|
|
use PVE::Storage;
|
|
use PVE::QemuServer;
|
|
use IO::File;
|
|
use IPC::Open3;
|
|
|
|
use base qw (PVE::VZDump::Plugin);
|
|
|
|
sub new {
|
|
my ($class, $vzdump) = @_;
|
|
|
|
PVE::VZDump::check_bin('qm');
|
|
|
|
my $self = bless { vzdump => $vzdump };
|
|
|
|
$self->{vmlist} = PVE::QemuServer::vzlist();
|
|
$self->{storecfg} = PVE::Storage::config();
|
|
|
|
return $self;
|
|
};
|
|
|
|
|
|
sub type {
|
|
return 'qemu';
|
|
}
|
|
|
|
sub vmlist {
|
|
my ($self) = @_;
|
|
|
|
return [ keys %{$self->{vmlist}} ];
|
|
}
|
|
|
|
sub prepare {
|
|
my ($self, $task, $vmid, $mode) = @_;
|
|
|
|
$task->{disks} = [];
|
|
|
|
my $conf = $self->{vmlist}->{$vmid} = PVE::QemuServer::load_config($vmid);
|
|
|
|
$self->{vm_was_running} = 1;
|
|
if (!PVE::QemuServer::check_running($vmid)) {
|
|
$self->{vm_was_running} = 0;
|
|
}
|
|
|
|
$task->{hostname} = $conf->{name};
|
|
|
|
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);
|
|
|
|
if (defined($drive->{backup}) && $drive->{backup} eq "no") {
|
|
$self->loginfo("exclude disk '$ds' (backup=no)");
|
|
return;
|
|
}
|
|
|
|
my $volid = $drive->{file};
|
|
|
|
my ($storeid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
|
|
push @$vollist, $volid if $storeid;
|
|
$drivehash->{$ds} = $drive;
|
|
});
|
|
|
|
PVE::Storage::activate_volumes($self->{storecfg}, $vollist);
|
|
|
|
foreach my $ds (sort keys %$drivehash) {
|
|
my $drive = $drivehash->{$ds};
|
|
|
|
my $volid = $drive->{file};
|
|
|
|
my $path;
|
|
|
|
my ($storeid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
|
|
if ($storeid) {
|
|
$path = PVE::Storage::path($self->{storecfg}, $volid);
|
|
} else {
|
|
$path = $volid;
|
|
}
|
|
|
|
next if !$path;
|
|
|
|
my $format = undef;
|
|
my $size = undef;
|
|
|
|
eval{
|
|
($size, $format) = PVE::Storage::volume_size_info($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 {
|
|
$diskinfo->{type} = 'file';
|
|
}
|
|
|
|
push @{$task->{disks}}, $diskinfo;
|
|
}
|
|
}
|
|
|
|
sub vm_status {
|
|
my ($self, $vmid) = @_;
|
|
|
|
my $running = PVE::QemuServer::check_running($vmid) ? 1 : 0;
|
|
|
|
return wantarray ? ($running, $running ? 'running' : 'stopped') : $running;
|
|
}
|
|
|
|
sub lock_vm {
|
|
my ($self, $vmid) = @_;
|
|
|
|
$self->cmd ("qm set $vmid --lock backup");
|
|
}
|
|
|
|
sub unlock_vm {
|
|
my ($self, $vmid) = @_;
|
|
|
|
$self->cmd ("qm unlock $vmid");
|
|
}
|
|
|
|
sub stop_vm {
|
|
my ($self, $task, $vmid) = @_;
|
|
|
|
my $opts = $self->{vzdump}->{opts};
|
|
|
|
my $wait = $opts->{stopwait} * 60;
|
|
# send shutdown and wait
|
|
$self->cmd ("qm shutdown $vmid --skiplock --keepActive --timeout $wait");
|
|
}
|
|
|
|
sub start_vm {
|
|
my ($self, $task, $vmid) = @_;
|
|
|
|
$self->cmd ("qm start $vmid --skiplock");
|
|
}
|
|
|
|
sub suspend_vm {
|
|
my ($self, $task, $vmid) = @_;
|
|
|
|
$self->cmd ("qm suspend $vmid --skiplock");
|
|
}
|
|
|
|
sub resume_vm {
|
|
my ($self, $task, $vmid) = @_;
|
|
|
|
$self->cmd ("qm resume $vmid --skiplock");
|
|
}
|
|
|
|
sub assemble {
|
|
my ($self, $task, $vmid) = @_;
|
|
|
|
my $conffile = PVE::QemuServer::config_file ($vmid);
|
|
|
|
my $outfile = "$task->{tmpdir}/qemu-server.conf";
|
|
|
|
my $outfd;
|
|
my $conffd;
|
|
|
|
eval {
|
|
|
|
$outfd = IO::File->new (">$outfile") ||
|
|
die "unable to open '$outfile'";
|
|
$conffd = IO::File->new ($conffile, 'r') ||
|
|
die "unable open '$conffile'";
|
|
|
|
my $found_snapshot;
|
|
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*$/) {
|
|
$found_snapshot = 1;
|
|
}
|
|
next if $found_snapshot; # skip all snapshots data
|
|
if ($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:/;
|
|
|
|
print $outfd $line;
|
|
}
|
|
|
|
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)");
|
|
}
|
|
};
|
|
my $err = $@;
|
|
|
|
close ($outfd) if $outfd;
|
|
close ($conffd) if $conffd;
|
|
|
|
die $err if $err;
|
|
}
|
|
|
|
sub archive {
|
|
my ($self, $task, $vmid, $filename, $comp) = @_;
|
|
|
|
my $conffile = "$task->{tmpdir}/qemu-server.conf";
|
|
|
|
my $opts = $self->{vzdump}->{opts};
|
|
|
|
my $starttime = time ();
|
|
|
|
my $speed = 0;
|
|
if ($opts->{bwlimit}) {
|
|
$speed = $opts->{bwlimit}*1024;
|
|
}
|
|
|
|
my $diskcount = scalar(@{$task->{disks}});
|
|
|
|
if (PVE::QemuServer::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}=$di->{path}";
|
|
} else {
|
|
die "implement me";
|
|
}
|
|
}
|
|
|
|
if (!$diskcount) {
|
|
$self->loginfo("backup contains no disks");
|
|
}
|
|
|
|
my $outcmd;
|
|
if ($comp) {
|
|
$outcmd = "exec:$comp";
|
|
} else {
|
|
$outcmd = "exec:cat";
|
|
}
|
|
|
|
$outcmd .= ">$filename" if !$opts->{stdout};
|
|
|
|
my $cmd = ['/usr/bin/vma', 'create', '-v', '-c', $conffile, $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') {
|
|
$devlist .= $devlist ? ",$di->{qmdevice}" : $di->{qmdevice};
|
|
} else {
|
|
die "implement me";
|
|
}
|
|
}
|
|
|
|
my $stop_after_backup;
|
|
my $resume_on_backup;
|
|
|
|
my $skiplock = 1;
|
|
|
|
if (!PVE::QemuServer::check_running($vmid)) {
|
|
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 $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 $uuid;
|
|
|
|
my $backup_cb = sub {
|
|
my ($vmid, $resp) = @_;
|
|
$uuid = $resp->{return};
|
|
};
|
|
|
|
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) = @_;
|
|
|
|
$qmpclient->queue_cmd($vmid, $backup_cb, 'backup',
|
|
'backup-file' => "/dev/fdname/backup",
|
|
speed => $speed,
|
|
'config-file' => $conffile,
|
|
devlist => $devlist);
|
|
};
|
|
|
|
|
|
$qmpclient->queue_cmd($vmid, $add_fd_cb, 'getfd',
|
|
fd => $outfileno, fdname => "backup");
|
|
$qmpclient->queue_execute();
|
|
|
|
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 !$uuid;
|
|
|
|
$self->loginfo("started backup task '$uuid'");
|
|
|
|
if ($resume_on_backup) {
|
|
$self->loginfo("resume VM");
|
|
PVE::QemuServer::vm_mon_cmd($vmid, 'cont');
|
|
}
|
|
|
|
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) {
|
|
$status = PVE::QemuServer::vm_mon_cmd($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 $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 $duration, " .
|
|
"$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 != $transferred);
|
|
|
|
last;
|
|
}
|
|
if ($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);
|
|
}
|
|
|
|
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)");
|
|
}
|
|
};
|
|
my $err = $@;
|
|
|
|
if ($err) {
|
|
$self->logerr($err);
|
|
$self->loginfo("aborting backup job");
|
|
eval { PVE::QemuServer::vm_mon_cmd($vmid, 'backup-cancel'); };
|
|
if (my $err1 = $@) {
|
|
$self->logerr($err1);
|
|
}
|
|
}
|
|
|
|
if ($stop_after_backup) {
|
|
# stop if not running
|
|
eval {
|
|
my $resp = PVE::QemuServer::vm_mon_cmd($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) = @_;
|
|
|
|
# nothing to do ?
|
|
}
|
|
|
|
1;
|