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Commit | Line | Data |
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1e3baf05 DM |
1 | package PVE::VZDump::QemuServer; |
2 | ||
1e3baf05 DM |
3 | use strict; |
4 | use warnings; | |
d610b145 | 5 | |
1e3baf05 | 6 | use File::Basename; |
d610b145 TL |
7 | use File::Path; |
8 | use IO::File; | |
9 | use IPC::Open3; | |
10 | ||
11 | use PVE::Cluster qw(cfs_read_file); | |
66ab1d91 | 12 | use PVE::INotify; |
91bd6c90 | 13 | use PVE::IPCC; |
d610b145 | 14 | use PVE::JSONSchema; |
0a13e08e | 15 | use PVE::QMPClient; |
f5bdefa4 | 16 | use PVE::Storage::Plugin; |
c5983223 | 17 | use PVE::Storage::PBSPlugin; |
1e3baf05 | 18 | use PVE::Storage; |
d610b145 TL |
19 | use PVE::Tools; |
20 | use PVE::VZDump; | |
21 | ||
1e3baf05 | 22 | use PVE::QemuServer; |
3392d6ca | 23 | use PVE::QemuServer::Machine; |
0a13e08e | 24 | use PVE::QemuServer::Monitor qw(mon_cmd); |
1e3baf05 DM |
25 | |
26 | use base qw (PVE::VZDump::Plugin); | |
27 | ||
28 | sub new { | |
29 | my ($class, $vzdump) = @_; | |
874a096e | 30 | |
66ab1d91 | 31 | PVE::VZDump::check_bin('qm'); |
1e3baf05 | 32 | |
e2812738 | 33 | my $self = bless { vzdump => $vzdump }, $class; |
1e3baf05 DM |
34 | |
35 | $self->{vmlist} = PVE::QemuServer::vzlist(); | |
36 | $self->{storecfg} = PVE::Storage::config(); | |
37 | ||
38 | return $self; | |
39 | }; | |
40 | ||
1e3baf05 DM |
41 | sub type { |
42 | return 'qemu'; | |
43 | } | |
44 | ||
45 | sub vmlist { | |
46 | my ($self) = @_; | |
1e3baf05 DM |
47 | return [ keys %{$self->{vmlist}} ]; |
48 | } | |
49 | ||
50 | sub prepare { | |
51 | my ($self, $task, $vmid, $mode) = @_; | |
52 | ||
53 | $task->{disks} = []; | |
54 | ||
ffda963f | 55 | my $conf = $self->{vmlist}->{$vmid} = PVE::QemuConfig->load_config($vmid); |
1e3baf05 | 56 | |
85b84b7b WL |
57 | $self->loginfo("VM Name: $conf->{name}") |
58 | if defined($conf->{name}); | |
59 | ||
91bd6c90 DM |
60 | $self->{vm_was_running} = 1; |
61 | if (!PVE::QemuServer::check_running($vmid)) { | |
62 | $self->{vm_was_running} = 0; | |
585b6e28 DM |
63 | } |
64 | ||
1e3baf05 DM |
65 | $task->{hostname} = $conf->{name}; |
66 | ||
874a096e | 67 | my $hostname = PVE::INotify::nodename(); |
1e3baf05 | 68 | |
b969cc68 DM |
69 | my $vollist = []; |
70 | my $drivehash = {}; | |
1e3baf05 DM |
71 | PVE::QemuServer::foreach_drive($conf, sub { |
72 | my ($ds, $drive) = @_; | |
73 | ||
f5bdefa4 | 74 | return if PVE::QemuServer::drive_is_cdrom($drive); |
1e3baf05 | 75 | |
b53b958b EK |
76 | my $volid = $drive->{file}; |
77 | ||
bea021ac | 78 | if (defined($drive->{backup}) && !$drive->{backup}) { |
b53b958b | 79 | $self->loginfo("exclude disk '$ds' '$volid' (backup=no)"); |
1e3baf05 | 80 | return; |
317c55c2 | 81 | } elsif ($self->{vm_was_running} && $drive->{iothread}) { |
3392d6ca | 82 | if (!PVE::QemuServer::Machine::runs_at_least_qemu_version($vmid, 4, 0, 1)) { |
48343b3f TL |
83 | die "disk '$ds' '$volid' (iothread=on) can't use backup feature with running QEMU " . |
84 | "version < 4.0.1! Either set backup=no for this drive or upgrade QEMU and restart VM\n"; | |
85 | } | |
1249d579 SR |
86 | } elsif ($ds =~ m/^efidisk/ && (!defined($conf->{bios}) || $conf->{bios} ne 'ovmf')) { |
87 | $self->loginfo("excluding '$ds' (efidisks can only be backed up when BIOS is set to 'ovmf')"); | |
88 | return; | |
b53b958b | 89 | } else { |
0db93c2d EK |
90 | my $log = "include disk '$ds' '$volid'"; |
91 | if (defined $drive->{size}) { | |
92 | my $readable_size = PVE::JSONSchema::format_size($drive->{size}); | |
93 | $log .= " $readable_size"; | |
94 | } | |
95 | $self->loginfo($log); | |
874a096e | 96 | } |
b969cc68 | 97 | |
f5bdefa4 | 98 | my ($storeid, $volname) = PVE::Storage::parse_volume_id($volid, 1); |
b969cc68 DM |
99 | push @$vollist, $volid if $storeid; |
100 | $drivehash->{$ds} = $drive; | |
101 | }); | |
102 | ||
103 | PVE::Storage::activate_volumes($self->{storecfg}, $vollist); | |
104 | ||
075b417a DM |
105 | foreach my $ds (sort keys %$drivehash) { |
106 | my $drive = $drivehash->{$ds}; | |
874a096e | 107 | |
1e3baf05 | 108 | my $volid = $drive->{file}; |
f5bdefa4 | 109 | my ($storeid, $volname) = PVE::Storage::parse_volume_id($volid, 1); |
a113a58a TL |
110 | |
111 | my $path = $volid; | |
1e3baf05 | 112 | if ($storeid) { |
b969cc68 | 113 | $path = PVE::Storage::path($self->{storecfg}, $volid); |
1e3baf05 | 114 | } |
b969cc68 | 115 | next if !$path; |
1e3baf05 | 116 | |
a113a58a | 117 | my ($size, $format) = eval { PVE::Storage::volume_size_info($self->{storecfg}, $volid, 5) }; |
daca220d | 118 | die "no such volume '$volid'\n" if $@; |
91bd6c90 | 119 | |
a113a58a TL |
120 | my $diskinfo = { |
121 | path => $path, | |
122 | volid => $volid, | |
123 | storeid => $storeid, | |
124 | format => $format, | |
125 | virtdev => $ds, | |
126 | qmdevice => "drive-$ds", | |
127 | }; | |
1e3baf05 DM |
128 | |
129 | if (-b $path) { | |
1e3baf05 | 130 | $diskinfo->{type} = 'block'; |
1e3baf05 | 131 | } else { |
1e3baf05 | 132 | $diskinfo->{type} = 'file'; |
1e3baf05 DM |
133 | } |
134 | ||
135 | push @{$task->{disks}}, $diskinfo; | |
b969cc68 | 136 | } |
1e3baf05 DM |
137 | } |
138 | ||
139 | sub vm_status { | |
140 | my ($self, $vmid) = @_; | |
141 | ||
66ab1d91 | 142 | my $running = PVE::QemuServer::check_running($vmid) ? 1 : 0; |
874a096e DM |
143 | |
144 | return wantarray ? ($running, $running ? 'running' : 'stopped') : $running; | |
1e3baf05 DM |
145 | } |
146 | ||
147 | sub lock_vm { | |
148 | my ($self, $vmid) = @_; | |
149 | ||
f301bc0d | 150 | PVE::QemuConfig->set_lock($vmid, 'backup'); |
1e3baf05 DM |
151 | } |
152 | ||
153 | sub unlock_vm { | |
154 | my ($self, $vmid) = @_; | |
155 | ||
f301bc0d | 156 | PVE::QemuConfig->remove_lock($vmid, 'backup'); |
1e3baf05 DM |
157 | } |
158 | ||
159 | sub stop_vm { | |
160 | my ($self, $task, $vmid) = @_; | |
161 | ||
162 | my $opts = $self->{vzdump}->{opts}; | |
163 | ||
164 | my $wait = $opts->{stopwait} * 60; | |
165 | # send shutdown and wait | |
254575e9 | 166 | $self->cmd ("qm shutdown $vmid --skiplock --keepActive --timeout $wait"); |
1e3baf05 DM |
167 | } |
168 | ||
169 | sub start_vm { | |
170 | my ($self, $task, $vmid) = @_; | |
171 | ||
66ab1d91 | 172 | $self->cmd ("qm start $vmid --skiplock"); |
1e3baf05 DM |
173 | } |
174 | ||
175 | sub suspend_vm { | |
176 | my ($self, $task, $vmid) = @_; | |
177 | ||
66ab1d91 | 178 | $self->cmd ("qm suspend $vmid --skiplock"); |
1e3baf05 DM |
179 | } |
180 | ||
181 | sub resume_vm { | |
182 | my ($self, $task, $vmid) = @_; | |
183 | ||
66ab1d91 | 184 | $self->cmd ("qm resume $vmid --skiplock"); |
1e3baf05 DM |
185 | } |
186 | ||
1e3baf05 DM |
187 | sub assemble { |
188 | my ($self, $task, $vmid) = @_; | |
189 | ||
04096e7b | 190 | my $conffile = PVE::QemuConfig->config_file($vmid); |
1e3baf05 DM |
191 | |
192 | my $outfile = "$task->{tmpdir}/qemu-server.conf"; | |
c05f7f3f WL |
193 | my $firewall_src = "/etc/pve/firewall/$vmid.fw"; |
194 | my $firewall_dest = "$task->{tmpdir}/qemu-server.fw"; | |
195 | ||
196 | my $outfd = IO::File->new (">$outfile") || | |
197 | die "unable to open '$outfile'"; | |
198 | my $conffd = IO::File->new ($conffile, 'r') || | |
199 | die "unable open '$conffile'"; | |
200 | ||
201 | my $found_snapshot; | |
391c2230 | 202 | my $found_pending; |
c05f7f3f WL |
203 | while (defined (my $line = <$conffd>)) { |
204 | next if $line =~ m/^\#vzdump\#/; # just to be sure | |
205 | next if $line =~ m/^\#qmdump\#/; # just to be sure | |
391c2230 FG |
206 | if ($line =~ m/^\[(.*)\]\s*$/) { |
207 | if ($1 =~ m/PENDING/i) { | |
208 | $found_pending = 1; | |
209 | } else { | |
210 | $found_snapshot = 1; | |
211 | } | |
cd544fb2 | 212 | next; # skip all snapshots and pending changes config data |
1e3baf05 | 213 | } |
391c2230 | 214 | |
c05f7f3f WL |
215 | if ($line =~ m/^unused\d+:\s*(\S+)\s*/) { |
216 | $self->loginfo("skip unused drive '$1' (not included into backup)"); | |
217 | next; | |
1e3baf05 | 218 | } |
c05f7f3f | 219 | next if $line =~ m/^lock:/ || $line =~ m/^parent:/; |
91bd6c90 | 220 | |
c05f7f3f WL |
221 | print $outfd $line; |
222 | } | |
223 | ||
224 | foreach my $di (@{$task->{disks}}) { | |
225 | if ($di->{type} eq 'block' || $di->{type} eq 'file') { | |
226 | my $storeid = $di->{storeid} || ''; | |
227 | my $format = $di->{format} || ''; | |
228 | print $outfd "#qmdump#map:$di->{virtdev}:$di->{qmdevice}:$storeid:$format:\n"; | |
229 | } else { | |
230 | die "internal error"; | |
91bd6c90 | 231 | } |
c05f7f3f | 232 | } |
1e3baf05 | 233 | |
c05f7f3f WL |
234 | if ($found_snapshot) { |
235 | $self->loginfo("snapshots found (not included into backup)"); | |
236 | } | |
391c2230 FG |
237 | if ($found_pending) { |
238 | $self->loginfo("pending configuration changes found (not included into backup)"); | |
239 | } | |
240 | ||
c05f7f3f | 241 | PVE::Tools::file_copy($firewall_src, $firewall_dest) if -f $firewall_src; |
1e3baf05 DM |
242 | } |
243 | ||
244 | sub archive { | |
fad02a16 | 245 | my ($self, $task, $vmid, $filename, $comp) = @_; |
1e3baf05 | 246 | |
c5983223 | 247 | my $opts = $self->{vzdump}->{opts}; |
c5983223 DM |
248 | my $scfg = $opts->{scfg}; |
249 | ||
250 | if ($scfg->{type} eq 'pbs') { | |
251 | $self->archive_pbs($task, $vmid); | |
252 | } else { | |
253 | $self->archive_vma($task, $vmid, $filename, $comp); | |
254 | } | |
255 | } | |
256 | ||
257 | my $query_backup_status_loop = sub { | |
258 | my ($self, $vmid, $job_uuid) = @_; | |
259 | ||
c5983223 | 260 | my $starttime = time (); |
09eb196b TL |
261 | my $last_time = $starttime; |
262 | my ($last_percent, $last_total, $last_zero, $last_transferred) = (-1, 0, 0, 0); | |
c5983223 DM |
263 | my $transferred; |
264 | ||
09eb196b TL |
265 | my $get_mbps = sub { |
266 | my ($mb, $delta) = @_; | |
267 | return ($mb > 0) ? int(($mb / $delta) / (1000 * 1000)) : 0; | |
268 | }; | |
269 | ||
c5983223 | 270 | while(1) { |
09eb196b TL |
271 | my $status = mon_cmd($vmid, 'query-backup'); |
272 | ||
c5983223 DM |
273 | my $total = $status->{total} || 0; |
274 | $transferred = $status->{transferred} || 0; | |
09eb196b | 275 | my $percent = $total ? int(($transferred * 100)/$total) : 0; |
c5983223 DM |
276 | my $zero = $status->{'zero-bytes'} || 0; |
277 | my $zero_per = $total ? int(($zero * 100)/$total) : 0; | |
278 | ||
279 | die "got unexpected uuid\n" if !$status->{uuid} || ($status->{uuid} ne $job_uuid); | |
280 | ||
281 | my $ctime = time(); | |
282 | my $duration = $ctime - $starttime; | |
283 | ||
284 | my $rbytes = $transferred - $last_transferred; | |
285 | my $wbytes = $rbytes - ($zero - $last_zero); | |
286 | ||
287 | my $timediff = ($ctime - $last_time) || 1; # fixme | |
09eb196b TL |
288 | my $mbps_read = $get_mbps->($rbytes, $timediff); |
289 | my $mbps_write = $get_mbps->($wbytes, $timediff); | |
290 | ||
291 | my $statusline = "status: $percent% ($transferred/$total), sparse ${zero_per}% ($zero), duration $duration, read/write $mbps_read/$mbps_write MB/s"; | |
292 | ||
c5983223 DM |
293 | my $res = $status->{status} || 'unknown'; |
294 | if ($res ne 'active') { | |
295 | $self->loginfo($statusline); | |
09eb196b TL |
296 | if ($res ne 'done') { |
297 | die (($status->{errmsg} || "unknown error") . "\n") if $res eq 'error'; | |
298 | die "got unexpected status '$res'\n"; | |
299 | } elsif ($total != $transferred) { | |
300 | die "got wrong number of transfered bytes ($total != $transferred)\n"; | |
301 | } | |
c5983223 DM |
302 | last; |
303 | } | |
09eb196b | 304 | if ($percent != $last_percent && ($timediff > 2)) { |
c5983223 | 305 | $self->loginfo($statusline); |
09eb196b | 306 | $last_percent = $percent; |
c5983223 DM |
307 | $last_total = $total if $total; |
308 | $last_zero = $zero if $zero; | |
309 | $last_transferred = $transferred if $transferred; | |
310 | $last_time = $ctime; | |
311 | } | |
312 | sleep(1); | |
313 | } | |
314 | ||
315 | my $duration = time() - $starttime; | |
316 | if ($transferred && $duration) { | |
09eb196b TL |
317 | my $mb = int($transferred / (1000 * 1000)); |
318 | my $mbps = $get_mbps->($transferred, $duration); | |
c5983223 DM |
319 | $self->loginfo("transferred $mb MB in $duration seconds ($mbps MB/s)"); |
320 | } | |
321 | }; | |
322 | ||
323 | sub archive_pbs { | |
324 | my ($self, $task, $vmid) = @_; | |
325 | ||
1e3baf05 | 326 | my $conffile = "$task->{tmpdir}/qemu-server.conf"; |
c05f7f3f | 327 | my $firewall = "$task->{tmpdir}/qemu-server.fw"; |
1e3baf05 DM |
328 | |
329 | my $opts = $self->{vzdump}->{opts}; | |
c5983223 DM |
330 | my $scfg = $opts->{scfg}; |
331 | ||
332 | my $starttime = time(); | |
333 | ||
c5983223 DM |
334 | my $server = $scfg->{server}; |
335 | my $datastore = $scfg->{datastore}; | |
336 | my $username = $scfg->{username} // 'root@pam'; | |
337 | my $fingerprint = $scfg->{fingerprint}; | |
338 | ||
339 | my $repo = "$username\@$server:$datastore"; | |
340 | my $password = PVE::Storage::PBSPlugin::pbs_get_password($scfg, $opts->{storage}); | |
341 | ||
d11e91d2 | 342 | my $diskcount = scalar(@{$task->{disks}}); |
c5983223 DM |
343 | if (PVE::QemuConfig->is_template($self->{vmlist}->{$vmid}) || !$diskcount) { |
344 | my @pathlist; | |
345 | foreach my $di (@{$task->{disks}}) { | |
346 | if ($di->{type} eq 'block' || $di->{type} eq 'file') { | |
347 | push @pathlist, "$di->{qmdevice}.img:$di->{path}"; | |
348 | } else { | |
d11e91d2 | 349 | die "implement me (type $di->{type})"; |
c5983223 DM |
350 | } |
351 | } | |
352 | ||
353 | if (!$diskcount) { | |
354 | $self->loginfo("backup contains no disks"); | |
355 | } | |
356 | ||
357 | local $ENV{PBS_PASSWORD} = $password; | |
358 | my $cmd = [ | |
359 | '/usr/bin/proxmox-backup-client', | |
360 | 'backup', | |
361 | '--repository', $repo, | |
362 | '--backup-type', 'vm', | |
363 | '--backup-id', "$vmid", | |
364 | '--backup-time', $task->{backup_time}, | |
d11e91d2 | 365 | ]; |
c5983223 DM |
366 | push @$cmd, '--fingerprint', $fingerprint if defined($fingerprint); |
367 | ||
368 | push @$cmd, "qemu-server.conf:$conffile"; | |
369 | push @$cmd, "fw.conf:$firewall" if -e $firewall; | |
370 | push @$cmd, @pathlist if scalar(@pathlist); | |
371 | ||
372 | $self->loginfo("starting template backup"); | |
373 | $self->loginfo(join(' ', @$cmd)); | |
374 | ||
375 | $self->cmd($cmd); | |
376 | ||
377 | return; | |
378 | } | |
379 | ||
81dcd479 TL |
380 | # get list early so we die on unkown drive types before doing anything |
381 | my $devlist = _get_task_devlist($task); | |
c5983223 | 382 | |
0b2f574b TL |
383 | my ($stop_after_backup, $resume_on_backup) = $self->handle_vm_powerstate($vmid); |
384 | $self->enforce_vm_running_for_backup($vmid); | |
c5983223 | 385 | |
f6168f1a | 386 | my $backup_job_uuid; |
c5983223 DM |
387 | eval { |
388 | $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub { | |
d11e91d2 | 389 | die "interrupted by signal\n"; |
c5983223 DM |
390 | }; |
391 | ||
1ece829a | 392 | my $fs_frozen = $self->qga_fs_freeze($vmid); |
c5983223 | 393 | |
d11e91d2 TL |
394 | my $params = { |
395 | format => "pbs", | |
396 | 'backup-file' => $repo, | |
397 | 'backup-id' => "$vmid", | |
398 | 'backup-time' => $task->{backup_time}, | |
399 | password => $password, | |
400 | devlist => $devlist, | |
401 | 'config-file' => $conffile, | |
c5983223 | 402 | }; |
d11e91d2 TL |
403 | $params->{fingerprint} = $fingerprint if defined($fingerprint); |
404 | $params->{'firewall-file'} = $firewall if -e $firewall; | |
c5983223 | 405 | |
d11e91d2 | 406 | my $res = eval { mon_cmd($vmid, "backup", %$params) }; |
c5983223 | 407 | my $qmperr = $@; |
d11e91d2 | 408 | $backup_job_uuid = $res->{UUID} if $res; |
c5983223 | 409 | |
1ece829a TL |
410 | if ($fs_frozen) { |
411 | $self->qga_fs_thaw($vmid); | |
c5983223 DM |
412 | } |
413 | ||
414 | die $qmperr if $qmperr; | |
f6168f1a | 415 | die "got no uuid for backup task\n" if !defined($backup_job_uuid); |
c5983223 | 416 | |
f6168f1a | 417 | $self->loginfo("started backup task '$backup_job_uuid'"); |
c5983223 | 418 | |
0b2f574b | 419 | $self->resume_vm_after_job_start($task, $vmid); |
c5983223 | 420 | |
f6168f1a | 421 | $query_backup_status_loop->($self, $vmid, $backup_job_uuid); |
c5983223 DM |
422 | }; |
423 | my $err = $@; | |
c5983223 DM |
424 | if ($err) { |
425 | $self->logerr($err); | |
0b2f574b | 426 | $self->mon_backup_cancel($vmid) if defined($backup_job_uuid); |
c5983223 | 427 | } |
0b2f574b | 428 | $self->restore_vm_power_state($vmid); |
c5983223 DM |
429 | |
430 | die $err if $err; | |
431 | } | |
432 | ||
02da0c65 TL |
433 | my $fork_compressor_pipe = sub { |
434 | my ($self, $comp, $outfileno) = @_; | |
435 | ||
436 | my @pipefd = POSIX::pipe(); | |
437 | my $cpid = fork(); | |
438 | die "unable to fork worker - $!" if !defined($cpid) || $cpid < 0; | |
439 | if ($cpid == 0) { | |
440 | eval { | |
441 | POSIX::close($pipefd[1]); | |
442 | # redirect STDIN | |
443 | my $fd = fileno(STDIN); | |
444 | close STDIN; | |
445 | POSIX::close(0) if $fd != 0; | |
446 | die "unable to redirect STDIN - $!" | |
447 | if !open(STDIN, "<&", $pipefd[0]); | |
448 | ||
449 | # redirect STDOUT | |
450 | $fd = fileno(STDOUT); | |
451 | close STDOUT; | |
452 | POSIX::close (1) if $fd != 1; | |
453 | ||
454 | die "unable to redirect STDOUT - $!" | |
455 | if !open(STDOUT, ">&", $outfileno); | |
456 | ||
457 | exec($comp); | |
458 | die "fork compressor '$comp' failed\n"; | |
459 | }; | |
460 | if (my $err = $@) { | |
461 | $self->logerr($err); | |
462 | POSIX::_exit(1); | |
463 | } | |
464 | POSIX::_exit(0); | |
465 | kill(-9, $$); | |
466 | } else { | |
467 | POSIX::close($pipefd[0]); | |
468 | $outfileno = $pipefd[1]; | |
469 | } | |
470 | ||
471 | return ($cpid, $outfileno); | |
472 | }; | |
473 | ||
c5983223 DM |
474 | sub archive_vma { |
475 | my ($self, $task, $vmid, $filename, $comp) = @_; | |
476 | ||
477 | my $conffile = "$task->{tmpdir}/qemu-server.conf"; | |
478 | my $firewall = "$task->{tmpdir}/qemu-server.fw"; | |
479 | ||
480 | my $opts = $self->{vzdump}->{opts}; | |
481 | ||
482 | my $starttime = time(); | |
1e3baf05 | 483 | |
91bd6c90 DM |
484 | my $speed = 0; |
485 | if ($opts->{bwlimit}) { | |
874a096e | 486 | $speed = $opts->{bwlimit}*1024; |
91bd6c90 | 487 | } |
1e3baf05 | 488 | |
c82935e9 | 489 | my $diskcount = scalar(@{$task->{disks}}); |
ffda963f | 490 | if (PVE::QemuConfig->is_template($self->{vmlist}->{$vmid}) || !$diskcount) { |
23b4120b DM |
491 | my @pathlist; |
492 | foreach my $di (@{$task->{disks}}) { | |
493 | if ($di->{type} eq 'block' || $di->{type} eq 'file') { | |
494 | push @pathlist, "$di->{qmdevice}=$di->{path}"; | |
495 | } else { | |
496 | die "implement me"; | |
497 | } | |
498 | } | |
499 | ||
c82935e9 DM |
500 | if (!$diskcount) { |
501 | $self->loginfo("backup contains no disks"); | |
502 | } | |
503 | ||
23b4120b DM |
504 | my $outcmd; |
505 | if ($comp) { | |
874a096e | 506 | $outcmd = "exec:$comp"; |
23b4120b | 507 | } else { |
874a096e | 508 | $outcmd = "exec:cat"; |
23b4120b DM |
509 | } |
510 | ||
a2fab11a | 511 | $outcmd .= " > $filename" if !$opts->{stdout}; |
23b4120b | 512 | |
c05f7f3f WL |
513 | my $cmd = ['/usr/bin/vma', 'create', '-v', '-c', $conffile]; |
514 | push @$cmd, '-c', $firewall if -e $firewall; | |
515 | push @$cmd, $outcmd, @pathlist; | |
23b4120b DM |
516 | |
517 | $self->loginfo("starting template backup"); | |
518 | $self->loginfo(join(' ', @$cmd)); | |
519 | ||
520 | if ($opts->{stdout}) { | |
521 | $self->cmd($cmd, output => ">&=" . fileno($opts->{stdout})); | |
522 | } else { | |
523 | $self->cmd($cmd); | |
524 | } | |
525 | ||
526 | return; | |
527 | } | |
528 | ||
81dcd479 | 529 | my $devlist = _get_task_devlist($task); |
1e3baf05 | 530 | |
0b2f574b | 531 | $self->enforce_vm_running_for_backup($vmid); |
91bd6c90 DM |
532 | |
533 | my $cpid; | |
d2cc2cbe DM |
534 | my $backup_job_uuid; |
535 | ||
91bd6c90 DM |
536 | eval { |
537 | $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub { | |
d11e91d2 | 538 | die "interrupted by signal\n"; |
91bd6c90 DM |
539 | }; |
540 | ||
541 | my $qmpclient = PVE::QMPClient->new(); | |
542 | ||
91bd6c90 DM |
543 | my $backup_cb = sub { |
544 | my ($vmid, $resp) = @_; | |
d2cc2cbe | 545 | $backup_job_uuid = $resp->{return}->{UUID}; |
91bd6c90 DM |
546 | }; |
547 | ||
548 | my $outfh; | |
549 | if ($opts->{stdout}) { | |
550 | $outfh = $opts->{stdout}; | |
551 | } else { | |
552 | $outfh = IO::File->new($filename, "w") || | |
553 | die "unable to open file '$filename' - $!\n"; | |
554 | } | |
02da0c65 | 555 | my $outfileno = fileno($outfh); |
91bd6c90 | 556 | |
91bd6c90 | 557 | if ($comp) { |
02da0c65 | 558 | ($cpid, $outfileno) = $fork_compressor_pipe->($self, $comp, $outfileno); |
91bd6c90 DM |
559 | } |
560 | ||
561 | my $add_fd_cb = sub { | |
562 | my ($vmid, $resp) = @_; | |
563 | ||
c05f7f3f WL |
564 | my $params = { |
565 | 'backup-file' => "/dev/fdname/backup", | |
566 | speed => $speed, | |
567 | 'config-file' => $conffile, | |
568 | devlist => $devlist | |
569 | }; | |
c05f7f3f | 570 | $params->{'firewall-file'} = $firewall if -e $firewall; |
d11e91d2 | 571 | |
c05f7f3f | 572 | $qmpclient->queue_cmd($vmid, $backup_cb, 'backup', %$params); |
91bd6c90 DM |
573 | }; |
574 | ||
d11e91d2 | 575 | $qmpclient->queue_cmd($vmid, $add_fd_cb, 'getfd', fd => $outfileno, fdname => "backup"); |
ab6a9a0c | 576 | |
1ece829a | 577 | my $fs_frozen = $self->qga_fs_freeze($vmid); |
874a096e | 578 | |
c5983223 | 579 | eval { $qmpclient->queue_execute(30) }; |
f0f30448 | 580 | my $qmperr = $@; |
91bd6c90 | 581 | |
1ece829a TL |
582 | if ($fs_frozen) { |
583 | $self->qga_fs_thaw($vmid); | |
ab6a9a0c | 584 | } |
d11e91d2 | 585 | |
f0f30448 | 586 | die $qmperr if $qmperr; |
874a096e | 587 | die $qmpclient->{errors}->{$vmid} if $qmpclient->{errors}->{$vmid}; |
91bd6c90 DM |
588 | |
589 | if ($cpid) { | |
874a096e | 590 | POSIX::close($outfileno) == 0 || |
91bd6c90 DM |
591 | die "close output file handle failed\n"; |
592 | } | |
593 | ||
d2cc2cbe | 594 | die "got no uuid for backup task\n" if !defined($backup_job_uuid); |
91bd6c90 | 595 | |
d2cc2cbe | 596 | $self->loginfo("started backup task '$backup_job_uuid'"); |
91bd6c90 | 597 | |
0b2f574b | 598 | $self->resume_vm_after_job_start($task, $vmid); |
91bd6c90 | 599 | |
d2cc2cbe | 600 | $query_backup_status_loop->($self, $vmid, $backup_job_uuid); |
91bd6c90 DM |
601 | }; |
602 | my $err = $@; | |
19599cd9 | 603 | if ($err) { |
60635a57 | 604 | $self->logerr($err); |
0b2f574b | 605 | $self->mon_backup_cancel($vmid) if defined($backup_job_uuid); |
19599cd9 DM |
606 | } |
607 | ||
0b2f574b | 608 | $self->restore_vm_power_state($vmid); |
91bd6c90 DM |
609 | |
610 | if ($err) { | |
874a096e DM |
611 | if ($cpid) { |
612 | kill(9, $cpid); | |
91bd6c90 DM |
613 | waitpid($cpid, 0); |
614 | } | |
615 | die $err; | |
616 | } | |
617 | ||
618 | if ($cpid && (waitpid($cpid, 0) > 0)) { | |
619 | my $stat = $?; | |
620 | my $ec = $stat >> 8; | |
621 | my $signal = $stat & 127; | |
622 | if ($ec || $signal) { | |
874a096e | 623 | die "$comp failed - wrong exit status $ec" . |
91bd6c90 DM |
624 | ($signal ? " (signal $signal)\n" : "\n"); |
625 | } | |
626 | } | |
627 | } | |
628 | ||
81dcd479 TL |
629 | sub _get_task_devlist { |
630 | my ($task) = @_; | |
631 | ||
632 | my $devlist = ''; | |
633 | foreach my $di (@{$task->{disks}}) { | |
634 | if ($di->{type} eq 'block' || $di->{type} eq 'file') { | |
635 | $devlist .= ',' if $devlist; | |
636 | $devlist .= $di->{qmdevice}; | |
637 | } else { | |
638 | die "implement me (type '$di->{type}')"; | |
639 | } | |
640 | } | |
641 | return $devlist; | |
642 | } | |
643 | ||
1ece829a TL |
644 | sub qga_fs_freeze { |
645 | my ($self, $vmid) = @_; | |
646 | return if !$self->{vmlist}->{$vmid}->{agent} || !$self->{vm_was_running}; | |
647 | ||
648 | if (!PVE::QemuServer::qga_check_running($vmid, 1)) { | |
649 | $self->loginfo("skipping guest-agent 'fs-freeze', agent configured but not running?"); | |
650 | return; | |
651 | } | |
652 | ||
653 | $self->loginfo("issuing guest-agent 'fs-freeze' command"); | |
654 | eval { mon_cmd($vmid, "guest-fsfreeze-freeze") }; | |
655 | $self->logerr($@) if $@; | |
656 | ||
657 | return 1; # even on mon command error, ensure we always thaw again | |
658 | } | |
659 | ||
660 | # only call if fs_freeze return 1 | |
661 | sub qga_fs_thaw { | |
662 | my ($self, $vmid) = @_; | |
663 | ||
664 | $self->loginfo("issuing guest-agent 'fs-thaw' command"); | |
665 | eval { mon_cmd($vmid, "guest-fsfreeze-thaw") }; | |
666 | $self->logerr($@) if $@; | |
667 | } | |
668 | ||
0b2f574b TL |
669 | # we need a running QEMU/KVM process for backup, starts a paused (prelaunch) |
670 | # one if VM isn't already running | |
671 | sub enforce_vm_running_for_backup { | |
672 | my ($self, $vmid) = @_; | |
673 | ||
674 | if (PVE::QemuServer::check_running($vmid)) { | |
675 | $self->{vm_was_running} = 1; | |
676 | return; | |
677 | } | |
678 | ||
679 | eval { | |
680 | $self->loginfo("starting kvm to execute backup task"); | |
681 | # start with skiplock | |
682 | PVE::QemuServer::vm_start($self->{storecfg}, $vmid, undef, 1, undef, 1); | |
683 | }; | |
684 | die $@ if $@; | |
685 | } | |
686 | ||
687 | # resume VM againe once we got in a clear state (stop mode backup of running VM) | |
688 | sub resume_vm_after_job_start { | |
689 | my ($self, $task, $vmid) = @_; | |
690 | ||
691 | return if !$self->{vm_was_running}; | |
692 | ||
693 | if (my $stoptime = $task->{vmstoptime}) { | |
694 | my $delay = time() - $task->{vmstoptime}; | |
695 | $task->{vmstoptime} = undef; # avoid printing 'online after ..' twice | |
696 | $self->loginfo("resuming VM again after $delay seconds"); | |
697 | } else { | |
698 | $self->loginfo("resuming VM again"); | |
699 | } | |
700 | mon_cmd($vmid, 'cont'); | |
701 | } | |
702 | ||
703 | # stop again if VM was not running before | |
704 | sub restore_vm_power_state { | |
705 | my ($self, $vmid) = @_; | |
706 | ||
707 | # we always let VMs keep running | |
708 | return if $self->{vm_was_running}; | |
709 | ||
710 | eval { | |
711 | my $resp = mon_cmd($vmid, 'query-status'); | |
712 | my $status = $resp && $resp->{status} ? $resp->{status} : 'unknown'; | |
713 | if ($status eq 'prelaunch') { | |
714 | $self->loginfo("stopping kvm after backup task"); | |
715 | PVE::QemuServer::vm_stop($self->{storecfg}, $vmid, 1); | |
716 | } else { | |
717 | $self->loginfo("kvm status changed after backup ('$status') - keep VM running"); | |
718 | } | |
719 | }; | |
720 | warn $@ if $@; | |
721 | } | |
722 | ||
723 | sub mon_backup_cancel { | |
724 | my ($self, $vmid) = @_; | |
725 | ||
726 | $self->loginfo("aborting backup job"); | |
727 | eval { mon_cmd($vmid, 'backup-cancel') }; | |
728 | $self->logerr($@) if $@; | |
729 | } | |
730 | ||
91bd6c90 DM |
731 | sub snapshot { |
732 | my ($self, $task, $vmid) = @_; | |
733 | ||
734 | # nothing to do | |
1e3baf05 DM |
735 | } |
736 | ||
737 | sub cleanup { | |
738 | my ($self, $task, $vmid) = @_; | |
739 | ||
91bd6c90 | 740 | # nothing to do ? |
1e3baf05 DM |
741 | } |
742 | ||
743 | 1; |