]>
Commit | Line | Data |
---|---|---|
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; | |
69e62894 | 10 | use JSON; |
d610b145 TL |
11 | |
12 | use PVE::Cluster qw(cfs_read_file); | |
66ab1d91 | 13 | use PVE::INotify; |
91bd6c90 | 14 | use PVE::IPCC; |
d610b145 | 15 | use PVE::JSONSchema; |
0a13e08e | 16 | use PVE::QMPClient; |
f5bdefa4 | 17 | use PVE::Storage::Plugin; |
c5983223 | 18 | use PVE::Storage::PBSPlugin; |
1e3baf05 | 19 | use PVE::Storage; |
d610b145 TL |
20 | use PVE::Tools; |
21 | use PVE::VZDump; | |
22 | ||
912792e2 | 23 | use PVE::QemuConfig; |
1e3baf05 | 24 | use PVE::QemuServer; |
3392d6ca | 25 | use PVE::QemuServer::Machine; |
0a13e08e | 26 | use PVE::QemuServer::Monitor qw(mon_cmd); |
1e3baf05 DM |
27 | |
28 | use base qw (PVE::VZDump::Plugin); | |
29 | ||
30 | sub new { | |
31 | my ($class, $vzdump) = @_; | |
874a096e | 32 | |
66ab1d91 | 33 | PVE::VZDump::check_bin('qm'); |
1e3baf05 | 34 | |
e2812738 | 35 | my $self = bless { vzdump => $vzdump }, $class; |
1e3baf05 DM |
36 | |
37 | $self->{vmlist} = PVE::QemuServer::vzlist(); | |
38 | $self->{storecfg} = PVE::Storage::config(); | |
39 | ||
40 | return $self; | |
41 | }; | |
42 | ||
1e3baf05 DM |
43 | sub type { |
44 | return 'qemu'; | |
45 | } | |
46 | ||
47 | sub vmlist { | |
48 | my ($self) = @_; | |
1e3baf05 DM |
49 | return [ keys %{$self->{vmlist}} ]; |
50 | } | |
51 | ||
52 | sub prepare { | |
53 | my ($self, $task, $vmid, $mode) = @_; | |
54 | ||
55 | $task->{disks} = []; | |
56 | ||
ffda963f | 57 | my $conf = $self->{vmlist}->{$vmid} = PVE::QemuConfig->load_config($vmid); |
1e3baf05 | 58 | |
85b84b7b WL |
59 | $self->loginfo("VM Name: $conf->{name}") |
60 | if defined($conf->{name}); | |
61 | ||
91bd6c90 DM |
62 | $self->{vm_was_running} = 1; |
63 | if (!PVE::QemuServer::check_running($vmid)) { | |
64 | $self->{vm_was_running} = 0; | |
585b6e28 DM |
65 | } |
66 | ||
1e3baf05 DM |
67 | $task->{hostname} = $conf->{name}; |
68 | ||
874a096e | 69 | my $hostname = PVE::INotify::nodename(); |
1e3baf05 | 70 | |
b969cc68 DM |
71 | my $vollist = []; |
72 | my $drivehash = {}; | |
185df962 | 73 | my $backup_volumes = PVE::QemuConfig->get_backup_volumes($conf); |
1e3baf05 | 74 | |
185df962 AL |
75 | foreach my $volume (@{$backup_volumes}) { |
76 | my $name = $volume->{key}; | |
5a92276e | 77 | my $volume_config = $volume->{volume_config}; |
185df962 | 78 | my $volid = $volume_config->{file}; |
1e3baf05 | 79 | |
185df962 AL |
80 | if (!$volume->{included}) { |
81 | $self->loginfo("exclude disk '$name' '$volid' ($volume->{reason})"); | |
82 | next; | |
83 | } elsif ($self->{vm_was_running} && $volume_config->{iothread}) { | |
3392d6ca | 84 | if (!PVE::QemuServer::Machine::runs_at_least_qemu_version($vmid, 4, 0, 1)) { |
185df962 | 85 | die "disk '$name' '$volid' (iothread=on) can't use backup feature with running QEMU " . |
48343b3f TL |
86 | "version < 4.0.1! Either set backup=no for this drive or upgrade QEMU and restart VM\n"; |
87 | } | |
b53b958b | 88 | } else { |
185df962 AL |
89 | my $log = "include disk '$name' '$volid'"; |
90 | if (defined(my $size = $volume_config->{size})) { | |
91 | my $readable_size = PVE::JSONSchema::format_size($size); | |
0db93c2d | 92 | $log .= " $readable_size"; |
185df962 | 93 | } |
0db93c2d | 94 | $self->loginfo($log); |
874a096e | 95 | } |
b969cc68 | 96 | |
f5bdefa4 | 97 | my ($storeid, $volname) = PVE::Storage::parse_volume_id($volid, 1); |
b969cc68 | 98 | push @$vollist, $volid if $storeid; |
185df962 AL |
99 | $drivehash->{$name} = $volume->{volume_config}; |
100 | } | |
b969cc68 DM |
101 | |
102 | PVE::Storage::activate_volumes($self->{storecfg}, $vollist); | |
103 | ||
075b417a DM |
104 | foreach my $ds (sort keys %$drivehash) { |
105 | my $drive = $drivehash->{$ds}; | |
874a096e | 106 | |
1e3baf05 | 107 | my $volid = $drive->{file}; |
f5bdefa4 | 108 | my ($storeid, $volname) = PVE::Storage::parse_volume_id($volid, 1); |
a113a58a TL |
109 | |
110 | my $path = $volid; | |
1e3baf05 | 111 | if ($storeid) { |
b969cc68 | 112 | $path = PVE::Storage::path($self->{storecfg}, $volid); |
1e3baf05 | 113 | } |
b969cc68 | 114 | next if !$path; |
1e3baf05 | 115 | |
a113a58a | 116 | my ($size, $format) = eval { PVE::Storage::volume_size_info($self->{storecfg}, $volid, 5) }; |
daca220d | 117 | die "no such volume '$volid'\n" if $@; |
91bd6c90 | 118 | |
a113a58a TL |
119 | my $diskinfo = { |
120 | path => $path, | |
121 | volid => $volid, | |
122 | storeid => $storeid, | |
123 | format => $format, | |
124 | virtdev => $ds, | |
125 | qmdevice => "drive-$ds", | |
126 | }; | |
1e3baf05 DM |
127 | |
128 | if (-b $path) { | |
1e3baf05 | 129 | $diskinfo->{type} = 'block'; |
1e3baf05 | 130 | } else { |
1e3baf05 | 131 | $diskinfo->{type} = 'file'; |
1e3baf05 DM |
132 | } |
133 | ||
134 | push @{$task->{disks}}, $diskinfo; | |
b969cc68 | 135 | } |
1e3baf05 DM |
136 | } |
137 | ||
138 | sub vm_status { | |
139 | my ($self, $vmid) = @_; | |
140 | ||
66ab1d91 | 141 | my $running = PVE::QemuServer::check_running($vmid) ? 1 : 0; |
874a096e DM |
142 | |
143 | return wantarray ? ($running, $running ? 'running' : 'stopped') : $running; | |
1e3baf05 DM |
144 | } |
145 | ||
146 | sub lock_vm { | |
147 | my ($self, $vmid) = @_; | |
148 | ||
f301bc0d | 149 | PVE::QemuConfig->set_lock($vmid, 'backup'); |
1e3baf05 DM |
150 | } |
151 | ||
152 | sub unlock_vm { | |
153 | my ($self, $vmid) = @_; | |
154 | ||
f301bc0d | 155 | PVE::QemuConfig->remove_lock($vmid, 'backup'); |
1e3baf05 DM |
156 | } |
157 | ||
158 | sub stop_vm { | |
159 | my ($self, $task, $vmid) = @_; | |
160 | ||
161 | my $opts = $self->{vzdump}->{opts}; | |
162 | ||
163 | my $wait = $opts->{stopwait} * 60; | |
164 | # send shutdown and wait | |
254575e9 | 165 | $self->cmd ("qm shutdown $vmid --skiplock --keepActive --timeout $wait"); |
1e3baf05 DM |
166 | } |
167 | ||
168 | sub start_vm { | |
169 | my ($self, $task, $vmid) = @_; | |
170 | ||
66ab1d91 | 171 | $self->cmd ("qm start $vmid --skiplock"); |
1e3baf05 DM |
172 | } |
173 | ||
174 | sub suspend_vm { | |
175 | my ($self, $task, $vmid) = @_; | |
176 | ||
66ab1d91 | 177 | $self->cmd ("qm suspend $vmid --skiplock"); |
1e3baf05 DM |
178 | } |
179 | ||
180 | sub resume_vm { | |
181 | my ($self, $task, $vmid) = @_; | |
182 | ||
66ab1d91 | 183 | $self->cmd ("qm resume $vmid --skiplock"); |
1e3baf05 DM |
184 | } |
185 | ||
1e3baf05 DM |
186 | sub assemble { |
187 | my ($self, $task, $vmid) = @_; | |
188 | ||
04096e7b | 189 | my $conffile = PVE::QemuConfig->config_file($vmid); |
1e3baf05 DM |
190 | |
191 | my $outfile = "$task->{tmpdir}/qemu-server.conf"; | |
c05f7f3f WL |
192 | my $firewall_src = "/etc/pve/firewall/$vmid.fw"; |
193 | my $firewall_dest = "$task->{tmpdir}/qemu-server.fw"; | |
194 | ||
195 | my $outfd = IO::File->new (">$outfile") || | |
196 | die "unable to open '$outfile'"; | |
197 | my $conffd = IO::File->new ($conffile, 'r') || | |
198 | die "unable open '$conffile'"; | |
199 | ||
200 | my $found_snapshot; | |
391c2230 | 201 | my $found_pending; |
c05f7f3f WL |
202 | while (defined (my $line = <$conffd>)) { |
203 | next if $line =~ m/^\#vzdump\#/; # just to be sure | |
204 | next if $line =~ m/^\#qmdump\#/; # just to be sure | |
391c2230 FG |
205 | if ($line =~ m/^\[(.*)\]\s*$/) { |
206 | if ($1 =~ m/PENDING/i) { | |
207 | $found_pending = 1; | |
208 | } else { | |
209 | $found_snapshot = 1; | |
210 | } | |
1e3baf05 | 211 | } |
1bd6fe13 | 212 | next if $found_snapshot || $found_pending; # skip all snapshots and pending changes config data |
391c2230 | 213 | |
c05f7f3f WL |
214 | if ($line =~ m/^unused\d+:\s*(\S+)\s*/) { |
215 | $self->loginfo("skip unused drive '$1' (not included into backup)"); | |
216 | next; | |
1e3baf05 | 217 | } |
c05f7f3f | 218 | next if $line =~ m/^lock:/ || $line =~ m/^parent:/; |
91bd6c90 | 219 | |
c05f7f3f WL |
220 | print $outfd $line; |
221 | } | |
222 | ||
223 | foreach my $di (@{$task->{disks}}) { | |
224 | if ($di->{type} eq 'block' || $di->{type} eq 'file') { | |
225 | my $storeid = $di->{storeid} || ''; | |
226 | my $format = $di->{format} || ''; | |
227 | print $outfd "#qmdump#map:$di->{virtdev}:$di->{qmdevice}:$storeid:$format:\n"; | |
228 | } else { | |
229 | die "internal error"; | |
91bd6c90 | 230 | } |
c05f7f3f | 231 | } |
1e3baf05 | 232 | |
c05f7f3f WL |
233 | if ($found_snapshot) { |
234 | $self->loginfo("snapshots found (not included into backup)"); | |
235 | } | |
391c2230 FG |
236 | if ($found_pending) { |
237 | $self->loginfo("pending configuration changes found (not included into backup)"); | |
238 | } | |
239 | ||
c05f7f3f | 240 | PVE::Tools::file_copy($firewall_src, $firewall_dest) if -f $firewall_src; |
1e3baf05 DM |
241 | } |
242 | ||
243 | sub archive { | |
fad02a16 | 244 | my ($self, $task, $vmid, $filename, $comp) = @_; |
1e3baf05 | 245 | |
c5983223 | 246 | my $opts = $self->{vzdump}->{opts}; |
c5983223 DM |
247 | my $scfg = $opts->{scfg}; |
248 | ||
69074863 | 249 | if ($self->{vzdump}->{opts}->{pbs}) { |
c5983223 DM |
250 | $self->archive_pbs($task, $vmid); |
251 | } else { | |
252 | $self->archive_vma($task, $vmid, $filename, $comp); | |
253 | } | |
254 | } | |
255 | ||
4d159c24 TL |
256 | # number, [precision=1] |
257 | my $num2str = sub { | |
258 | return sprintf( "%." . ( $_[1] || 1 ) . "f", $_[0] ); | |
259 | }; | |
260 | sub bytes_to_human { | |
261 | my ($bytes, $precission) = @_; | |
262 | ||
263 | return $num2str->($bytes, $precission) . ' B' if $bytes < 1024; | |
264 | my $kb = $bytes/1024; | |
265 | ||
266 | return $num2str->($kb, $precission) . " KiB" if $kb < 1024; | |
267 | my $mb = $kb/1024; | |
268 | ||
269 | return $num2str->($mb, $precission) . " MiB" if $mb < 1024; | |
270 | my $gb = $mb/1024; | |
271 | ||
272 | return $num2str->($gb, $precission) . " GiB" if $gb < 1024; | |
273 | my $tb = $gb/1024; | |
274 | ||
275 | return $num2str->($tb, $precission) . " TiB"; | |
276 | }; | |
277 | ||
c5983223 DM |
278 | my $query_backup_status_loop = sub { |
279 | my ($self, $vmid, $job_uuid) = @_; | |
280 | ||
c5983223 | 281 | my $starttime = time (); |
09eb196b | 282 | my $last_time = $starttime; |
4d159c24 TL |
283 | my ($last_percent, $last_total, $last_target, $last_zero, $last_transferred) = (-1, 0, 0, 0, 0); |
284 | my ($transferred, $reused); | |
285 | my $first_round = 1; | |
c5983223 | 286 | |
09eb196b TL |
287 | my $get_mbps = sub { |
288 | my ($mb, $delta) = @_; | |
4d159c24 TL |
289 | return "0 B/s" if $mb <= 0; |
290 | my $bw = int(($mb / $delta)); | |
291 | return bytes_to_human($bw) . "/s"; | |
09eb196b TL |
292 | }; |
293 | ||
c5983223 | 294 | while(1) { |
09eb196b TL |
295 | my $status = mon_cmd($vmid, 'query-backup'); |
296 | ||
c5983223 | 297 | my $total = $status->{total} || 0; |
4d159c24 TL |
298 | my $dirty = $status->{dirty}; |
299 | my $target = (defined($dirty) && $dirty < $total) ? $dirty : $total; | |
c5983223 | 300 | $transferred = $status->{transferred} || 0; |
4d159c24 TL |
301 | $reused = $status->{reused}; |
302 | my $percent = $target ? int(($transferred * 100)/$target) : 0; | |
c5983223 | 303 | my $zero = $status->{'zero-bytes'} || 0; |
c5983223 DM |
304 | |
305 | die "got unexpected uuid\n" if !$status->{uuid} || ($status->{uuid} ne $job_uuid); | |
306 | ||
307 | my $ctime = time(); | |
308 | my $duration = $ctime - $starttime; | |
309 | ||
310 | my $rbytes = $transferred - $last_transferred; | |
311 | my $wbytes = $rbytes - ($zero - $last_zero); | |
312 | ||
313 | my $timediff = ($ctime - $last_time) || 1; # fixme | |
09eb196b TL |
314 | my $mbps_read = $get_mbps->($rbytes, $timediff); |
315 | my $mbps_write = $get_mbps->($wbytes, $timediff); | |
4d159c24 TL |
316 | my $target_h = bytes_to_human($target); |
317 | my $transferred_h = bytes_to_human($transferred); | |
318 | ||
319 | if ($first_round && $target != $total) { | |
320 | my $total_h = bytes_to_human($total); | |
321 | $self->loginfo("using fast incremental mode (dirty-bitmap), $target_h dirty of $total_h total"); | |
322 | } | |
09eb196b | 323 | |
4d159c24 TL |
324 | my $statusline = "status: $percent% ($transferred_h of $target_h), duration $duration" |
325 | .", read: $mbps_read, write: $mbps_write"; | |
09eb196b | 326 | |
c5983223 DM |
327 | my $res = $status->{status} || 'unknown'; |
328 | if ($res ne 'active') { | |
329 | $self->loginfo($statusline); | |
09eb196b TL |
330 | if ($res ne 'done') { |
331 | die (($status->{errmsg} || "unknown error") . "\n") if $res eq 'error'; | |
332 | die "got unexpected status '$res'\n"; | |
09eb196b | 333 | } |
6cdb568c TL |
334 | $last_target = $target if $target; |
335 | $last_total = $total if $total; | |
336 | $last_zero = $zero if $zero; | |
337 | $last_transferred = $transferred if $transferred; | |
c5983223 DM |
338 | last; |
339 | } | |
09eb196b | 340 | if ($percent != $last_percent && ($timediff > 2)) { |
c5983223 | 341 | $self->loginfo($statusline); |
09eb196b | 342 | $last_percent = $percent; |
4d159c24 | 343 | $last_target = $target if $target; |
c5983223 DM |
344 | $last_total = $total if $total; |
345 | $last_zero = $zero if $zero; | |
346 | $last_transferred = $transferred if $transferred; | |
347 | $last_time = $ctime; | |
348 | } | |
349 | sleep(1); | |
4d159c24 | 350 | $first_round = 0; |
c5983223 DM |
351 | } |
352 | ||
353 | my $duration = time() - $starttime; | |
354 | if ($transferred && $duration) { | |
4d159c24 | 355 | my $transferred_h = bytes_to_human($transferred, 2); |
09eb196b | 356 | my $mbps = $get_mbps->($transferred, $duration); |
4d159c24 TL |
357 | if ($reused) { |
358 | my $reused_h = bytes_to_human($reused, 2); | |
359 | my $reuse_per = int($reused * 100 / $last_total); | |
360 | $self->loginfo("backup was done incrementally, reused $reused_h (${reuse_per}%) from last backup"); | |
361 | $self->loginfo("transferred $transferred_h in $duration seconds ($mbps)"); | |
362 | } else { | |
363 | $self->loginfo("transferred $transferred_h in $duration seconds ($mbps)"); | |
364 | } | |
365 | } | |
366 | ||
367 | if ($last_zero) { | |
368 | my $zero_per = $last_target ? int(($last_zero * 100)/$last_target) : 0; | |
369 | my $zero_h = bytes_to_human($last_zero, 2); | |
370 | $self->loginfo("Backup is sparse: ${zero_per}% ($zero_h) zero data"); | |
c5983223 DM |
371 | } |
372 | }; | |
373 | ||
374 | sub archive_pbs { | |
375 | my ($self, $task, $vmid) = @_; | |
376 | ||
1e3baf05 | 377 | my $conffile = "$task->{tmpdir}/qemu-server.conf"; |
c05f7f3f | 378 | my $firewall = "$task->{tmpdir}/qemu-server.fw"; |
1e3baf05 DM |
379 | |
380 | my $opts = $self->{vzdump}->{opts}; | |
c5983223 DM |
381 | my $scfg = $opts->{scfg}; |
382 | ||
383 | my $starttime = time(); | |
384 | ||
c5983223 DM |
385 | my $server = $scfg->{server}; |
386 | my $datastore = $scfg->{datastore}; | |
387 | my $username = $scfg->{username} // 'root@pam'; | |
388 | my $fingerprint = $scfg->{fingerprint}; | |
389 | ||
390 | my $repo = "$username\@$server:$datastore"; | |
391 | my $password = PVE::Storage::PBSPlugin::pbs_get_password($scfg, $opts->{storage}); | |
392 | ||
d11e91d2 | 393 | my $diskcount = scalar(@{$task->{disks}}); |
c5983223 DM |
394 | if (PVE::QemuConfig->is_template($self->{vmlist}->{$vmid}) || !$diskcount) { |
395 | my @pathlist; | |
396 | foreach my $di (@{$task->{disks}}) { | |
397 | if ($di->{type} eq 'block' || $di->{type} eq 'file') { | |
398 | push @pathlist, "$di->{qmdevice}.img:$di->{path}"; | |
399 | } else { | |
d11e91d2 | 400 | die "implement me (type $di->{type})"; |
c5983223 DM |
401 | } |
402 | } | |
403 | ||
404 | if (!$diskcount) { | |
405 | $self->loginfo("backup contains no disks"); | |
406 | } | |
407 | ||
408 | local $ENV{PBS_PASSWORD} = $password; | |
77b24c62 | 409 | local $ENV{PBS_FINGERPRINT} = $fingerprint if defined($fingerprint); |
c5983223 DM |
410 | my $cmd = [ |
411 | '/usr/bin/proxmox-backup-client', | |
412 | 'backup', | |
413 | '--repository', $repo, | |
414 | '--backup-type', 'vm', | |
415 | '--backup-id', "$vmid", | |
416 | '--backup-time', $task->{backup_time}, | |
d11e91d2 | 417 | ]; |
c5983223 DM |
418 | |
419 | push @$cmd, "qemu-server.conf:$conffile"; | |
420 | push @$cmd, "fw.conf:$firewall" if -e $firewall; | |
421 | push @$cmd, @pathlist if scalar(@pathlist); | |
422 | ||
423 | $self->loginfo("starting template backup"); | |
424 | $self->loginfo(join(' ', @$cmd)); | |
425 | ||
426 | $self->cmd($cmd); | |
427 | ||
428 | return; | |
429 | } | |
430 | ||
81dcd479 TL |
431 | # get list early so we die on unkown drive types before doing anything |
432 | my $devlist = _get_task_devlist($task); | |
c5983223 | 433 | |
0b2f574b | 434 | $self->enforce_vm_running_for_backup($vmid); |
c5983223 | 435 | |
f6168f1a | 436 | my $backup_job_uuid; |
c5983223 DM |
437 | eval { |
438 | $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub { | |
d11e91d2 | 439 | die "interrupted by signal\n"; |
c5983223 DM |
440 | }; |
441 | ||
cb521f2d | 442 | my $fs_frozen = $self->qga_fs_freeze($task, $vmid); |
c5983223 | 443 | |
d11e91d2 TL |
444 | my $params = { |
445 | format => "pbs", | |
446 | 'backup-file' => $repo, | |
447 | 'backup-id' => "$vmid", | |
448 | 'backup-time' => $task->{backup_time}, | |
449 | password => $password, | |
450 | devlist => $devlist, | |
451 | 'config-file' => $conffile, | |
bbdf1ea5 | 452 | 'use-dirty-bitmap' => JSON::true, |
c5983223 | 453 | }; |
d11e91d2 TL |
454 | $params->{fingerprint} = $fingerprint if defined($fingerprint); |
455 | $params->{'firewall-file'} = $firewall if -e $firewall; | |
c5983223 | 456 | |
f57666e9 DM |
457 | $params->{timeout} = 60; # give some time to connect to the backup server |
458 | ||
d11e91d2 | 459 | my $res = eval { mon_cmd($vmid, "backup", %$params) }; |
c5983223 | 460 | my $qmperr = $@; |
d11e91d2 | 461 | $backup_job_uuid = $res->{UUID} if $res; |
c5983223 | 462 | |
1ece829a TL |
463 | if ($fs_frozen) { |
464 | $self->qga_fs_thaw($vmid); | |
c5983223 DM |
465 | } |
466 | ||
467 | die $qmperr if $qmperr; | |
f6168f1a | 468 | die "got no uuid for backup task\n" if !defined($backup_job_uuid); |
c5983223 | 469 | |
f6168f1a | 470 | $self->loginfo("started backup task '$backup_job_uuid'"); |
c5983223 | 471 | |
0b2f574b | 472 | $self->resume_vm_after_job_start($task, $vmid); |
c5983223 | 473 | |
f6168f1a | 474 | $query_backup_status_loop->($self, $vmid, $backup_job_uuid); |
c5983223 DM |
475 | }; |
476 | my $err = $@; | |
c5983223 DM |
477 | if ($err) { |
478 | $self->logerr($err); | |
0b2f574b | 479 | $self->mon_backup_cancel($vmid) if defined($backup_job_uuid); |
c5983223 | 480 | } |
0b2f574b | 481 | $self->restore_vm_power_state($vmid); |
c5983223 DM |
482 | |
483 | die $err if $err; | |
484 | } | |
485 | ||
02da0c65 TL |
486 | my $fork_compressor_pipe = sub { |
487 | my ($self, $comp, $outfileno) = @_; | |
488 | ||
489 | my @pipefd = POSIX::pipe(); | |
490 | my $cpid = fork(); | |
491 | die "unable to fork worker - $!" if !defined($cpid) || $cpid < 0; | |
492 | if ($cpid == 0) { | |
493 | eval { | |
494 | POSIX::close($pipefd[1]); | |
495 | # redirect STDIN | |
496 | my $fd = fileno(STDIN); | |
497 | close STDIN; | |
498 | POSIX::close(0) if $fd != 0; | |
499 | die "unable to redirect STDIN - $!" | |
500 | if !open(STDIN, "<&", $pipefd[0]); | |
501 | ||
502 | # redirect STDOUT | |
503 | $fd = fileno(STDOUT); | |
504 | close STDOUT; | |
505 | POSIX::close (1) if $fd != 1; | |
506 | ||
507 | die "unable to redirect STDOUT - $!" | |
508 | if !open(STDOUT, ">&", $outfileno); | |
509 | ||
510 | exec($comp); | |
511 | die "fork compressor '$comp' failed\n"; | |
512 | }; | |
513 | if (my $err = $@) { | |
514 | $self->logerr($err); | |
515 | POSIX::_exit(1); | |
516 | } | |
517 | POSIX::_exit(0); | |
518 | kill(-9, $$); | |
519 | } else { | |
520 | POSIX::close($pipefd[0]); | |
521 | $outfileno = $pipefd[1]; | |
522 | } | |
523 | ||
524 | return ($cpid, $outfileno); | |
525 | }; | |
526 | ||
c5983223 DM |
527 | sub archive_vma { |
528 | my ($self, $task, $vmid, $filename, $comp) = @_; | |
529 | ||
530 | my $conffile = "$task->{tmpdir}/qemu-server.conf"; | |
531 | my $firewall = "$task->{tmpdir}/qemu-server.fw"; | |
532 | ||
533 | my $opts = $self->{vzdump}->{opts}; | |
534 | ||
535 | my $starttime = time(); | |
1e3baf05 | 536 | |
91bd6c90 DM |
537 | my $speed = 0; |
538 | if ($opts->{bwlimit}) { | |
874a096e | 539 | $speed = $opts->{bwlimit}*1024; |
91bd6c90 | 540 | } |
1e3baf05 | 541 | |
c82935e9 | 542 | my $diskcount = scalar(@{$task->{disks}}); |
ffda963f | 543 | if (PVE::QemuConfig->is_template($self->{vmlist}->{$vmid}) || !$diskcount) { |
23b4120b DM |
544 | my @pathlist; |
545 | foreach my $di (@{$task->{disks}}) { | |
546 | if ($di->{type} eq 'block' || $di->{type} eq 'file') { | |
547 | push @pathlist, "$di->{qmdevice}=$di->{path}"; | |
548 | } else { | |
549 | die "implement me"; | |
550 | } | |
551 | } | |
552 | ||
c82935e9 DM |
553 | if (!$diskcount) { |
554 | $self->loginfo("backup contains no disks"); | |
555 | } | |
556 | ||
23b4120b DM |
557 | my $outcmd; |
558 | if ($comp) { | |
874a096e | 559 | $outcmd = "exec:$comp"; |
23b4120b | 560 | } else { |
874a096e | 561 | $outcmd = "exec:cat"; |
23b4120b DM |
562 | } |
563 | ||
a2fab11a | 564 | $outcmd .= " > $filename" if !$opts->{stdout}; |
23b4120b | 565 | |
c05f7f3f WL |
566 | my $cmd = ['/usr/bin/vma', 'create', '-v', '-c', $conffile]; |
567 | push @$cmd, '-c', $firewall if -e $firewall; | |
568 | push @$cmd, $outcmd, @pathlist; | |
23b4120b DM |
569 | |
570 | $self->loginfo("starting template backup"); | |
571 | $self->loginfo(join(' ', @$cmd)); | |
572 | ||
573 | if ($opts->{stdout}) { | |
6bb12239 | 574 | $self->cmd($cmd, output => ">&" . fileno($opts->{stdout})); |
23b4120b DM |
575 | } else { |
576 | $self->cmd($cmd); | |
577 | } | |
578 | ||
579 | return; | |
580 | } | |
581 | ||
81dcd479 | 582 | my $devlist = _get_task_devlist($task); |
1e3baf05 | 583 | |
0b2f574b | 584 | $self->enforce_vm_running_for_backup($vmid); |
91bd6c90 DM |
585 | |
586 | my $cpid; | |
d2cc2cbe DM |
587 | my $backup_job_uuid; |
588 | ||
91bd6c90 DM |
589 | eval { |
590 | $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub { | |
d11e91d2 | 591 | die "interrupted by signal\n"; |
91bd6c90 DM |
592 | }; |
593 | ||
91bd6c90 DM |
594 | my $outfh; |
595 | if ($opts->{stdout}) { | |
596 | $outfh = $opts->{stdout}; | |
597 | } else { | |
598 | $outfh = IO::File->new($filename, "w") || | |
599 | die "unable to open file '$filename' - $!\n"; | |
600 | } | |
02da0c65 | 601 | my $outfileno = fileno($outfh); |
91bd6c90 | 602 | |
91bd6c90 | 603 | if ($comp) { |
02da0c65 | 604 | ($cpid, $outfileno) = $fork_compressor_pipe->($self, $comp, $outfileno); |
91bd6c90 DM |
605 | } |
606 | ||
e8705fc5 TL |
607 | my $qmpclient = PVE::QMPClient->new(); |
608 | my $backup_cb = sub { | |
609 | my ($vmid, $resp) = @_; | |
610 | $backup_job_uuid = $resp->{return}->{UUID}; | |
611 | }; | |
612 | my $add_fd_cb = sub { | |
91bd6c90 DM |
613 | my ($vmid, $resp) = @_; |
614 | ||
c05f7f3f WL |
615 | my $params = { |
616 | 'backup-file' => "/dev/fdname/backup", | |
617 | speed => $speed, | |
618 | 'config-file' => $conffile, | |
619 | devlist => $devlist | |
620 | }; | |
c05f7f3f | 621 | $params->{'firewall-file'} = $firewall if -e $firewall; |
d11e91d2 | 622 | |
c05f7f3f | 623 | $qmpclient->queue_cmd($vmid, $backup_cb, 'backup', %$params); |
91bd6c90 DM |
624 | }; |
625 | ||
d11e91d2 | 626 | $qmpclient->queue_cmd($vmid, $add_fd_cb, 'getfd', fd => $outfileno, fdname => "backup"); |
ab6a9a0c | 627 | |
cb521f2d | 628 | my $fs_frozen = $self->qga_fs_freeze($task, $vmid); |
874a096e | 629 | |
c5983223 | 630 | eval { $qmpclient->queue_execute(30) }; |
f0f30448 | 631 | my $qmperr = $@; |
91bd6c90 | 632 | |
1ece829a TL |
633 | if ($fs_frozen) { |
634 | $self->qga_fs_thaw($vmid); | |
ab6a9a0c | 635 | } |
d11e91d2 | 636 | |
f0f30448 | 637 | die $qmperr if $qmperr; |
874a096e | 638 | die $qmpclient->{errors}->{$vmid} if $qmpclient->{errors}->{$vmid}; |
91bd6c90 DM |
639 | |
640 | if ($cpid) { | |
874a096e | 641 | POSIX::close($outfileno) == 0 || |
91bd6c90 DM |
642 | die "close output file handle failed\n"; |
643 | } | |
644 | ||
d2cc2cbe | 645 | die "got no uuid for backup task\n" if !defined($backup_job_uuid); |
91bd6c90 | 646 | |
d2cc2cbe | 647 | $self->loginfo("started backup task '$backup_job_uuid'"); |
91bd6c90 | 648 | |
0b2f574b | 649 | $self->resume_vm_after_job_start($task, $vmid); |
91bd6c90 | 650 | |
d2cc2cbe | 651 | $query_backup_status_loop->($self, $vmid, $backup_job_uuid); |
91bd6c90 DM |
652 | }; |
653 | my $err = $@; | |
19599cd9 | 654 | if ($err) { |
60635a57 | 655 | $self->logerr($err); |
0b2f574b | 656 | $self->mon_backup_cancel($vmid) if defined($backup_job_uuid); |
19599cd9 DM |
657 | } |
658 | ||
0b2f574b | 659 | $self->restore_vm_power_state($vmid); |
91bd6c90 DM |
660 | |
661 | if ($err) { | |
874a096e DM |
662 | if ($cpid) { |
663 | kill(9, $cpid); | |
91bd6c90 DM |
664 | waitpid($cpid, 0); |
665 | } | |
666 | die $err; | |
667 | } | |
668 | ||
669 | if ($cpid && (waitpid($cpid, 0) > 0)) { | |
670 | my $stat = $?; | |
671 | my $ec = $stat >> 8; | |
672 | my $signal = $stat & 127; | |
673 | if ($ec || $signal) { | |
874a096e | 674 | die "$comp failed - wrong exit status $ec" . |
91bd6c90 DM |
675 | ($signal ? " (signal $signal)\n" : "\n"); |
676 | } | |
677 | } | |
678 | } | |
679 | ||
81dcd479 TL |
680 | sub _get_task_devlist { |
681 | my ($task) = @_; | |
682 | ||
683 | my $devlist = ''; | |
684 | foreach my $di (@{$task->{disks}}) { | |
685 | if ($di->{type} eq 'block' || $di->{type} eq 'file') { | |
686 | $devlist .= ',' if $devlist; | |
687 | $devlist .= $di->{qmdevice}; | |
688 | } else { | |
689 | die "implement me (type '$di->{type}')"; | |
690 | } | |
691 | } | |
692 | return $devlist; | |
693 | } | |
694 | ||
1ece829a | 695 | sub qga_fs_freeze { |
cb521f2d TL |
696 | my ($self, $task, $vmid) = @_; |
697 | return if !$self->{vmlist}->{$vmid}->{agent} || $task->{mode} eq 'stop' || !$self->{vm_was_running}; | |
1ece829a TL |
698 | |
699 | if (!PVE::QemuServer::qga_check_running($vmid, 1)) { | |
700 | $self->loginfo("skipping guest-agent 'fs-freeze', agent configured but not running?"); | |
701 | return; | |
702 | } | |
703 | ||
704 | $self->loginfo("issuing guest-agent 'fs-freeze' command"); | |
705 | eval { mon_cmd($vmid, "guest-fsfreeze-freeze") }; | |
706 | $self->logerr($@) if $@; | |
707 | ||
708 | return 1; # even on mon command error, ensure we always thaw again | |
709 | } | |
710 | ||
711 | # only call if fs_freeze return 1 | |
712 | sub qga_fs_thaw { | |
713 | my ($self, $vmid) = @_; | |
714 | ||
715 | $self->loginfo("issuing guest-agent 'fs-thaw' command"); | |
716 | eval { mon_cmd($vmid, "guest-fsfreeze-thaw") }; | |
717 | $self->logerr($@) if $@; | |
718 | } | |
719 | ||
0b2f574b TL |
720 | # we need a running QEMU/KVM process for backup, starts a paused (prelaunch) |
721 | # one if VM isn't already running | |
722 | sub enforce_vm_running_for_backup { | |
723 | my ($self, $vmid) = @_; | |
724 | ||
725 | if (PVE::QemuServer::check_running($vmid)) { | |
726 | $self->{vm_was_running} = 1; | |
727 | return; | |
728 | } | |
729 | ||
730 | eval { | |
731 | $self->loginfo("starting kvm to execute backup task"); | |
732 | # start with skiplock | |
0c498cca FG |
733 | my $params = { |
734 | skiplock => 1, | |
735 | paused => 1, | |
736 | }; | |
737 | PVE::QemuServer::vm_start($self->{storecfg}, $vmid, $params); | |
0b2f574b TL |
738 | }; |
739 | die $@ if $@; | |
740 | } | |
741 | ||
742 | # resume VM againe once we got in a clear state (stop mode backup of running VM) | |
743 | sub resume_vm_after_job_start { | |
744 | my ($self, $task, $vmid) = @_; | |
745 | ||
746 | return if !$self->{vm_was_running}; | |
747 | ||
748 | if (my $stoptime = $task->{vmstoptime}) { | |
749 | my $delay = time() - $task->{vmstoptime}; | |
750 | $task->{vmstoptime} = undef; # avoid printing 'online after ..' twice | |
751 | $self->loginfo("resuming VM again after $delay seconds"); | |
752 | } else { | |
753 | $self->loginfo("resuming VM again"); | |
754 | } | |
755 | mon_cmd($vmid, 'cont'); | |
756 | } | |
757 | ||
758 | # stop again if VM was not running before | |
759 | sub restore_vm_power_state { | |
760 | my ($self, $vmid) = @_; | |
761 | ||
762 | # we always let VMs keep running | |
763 | return if $self->{vm_was_running}; | |
764 | ||
765 | eval { | |
766 | my $resp = mon_cmd($vmid, 'query-status'); | |
767 | my $status = $resp && $resp->{status} ? $resp->{status} : 'unknown'; | |
768 | if ($status eq 'prelaunch') { | |
769 | $self->loginfo("stopping kvm after backup task"); | |
770 | PVE::QemuServer::vm_stop($self->{storecfg}, $vmid, 1); | |
771 | } else { | |
772 | $self->loginfo("kvm status changed after backup ('$status') - keep VM running"); | |
773 | } | |
774 | }; | |
775 | warn $@ if $@; | |
776 | } | |
777 | ||
778 | sub mon_backup_cancel { | |
779 | my ($self, $vmid) = @_; | |
780 | ||
781 | $self->loginfo("aborting backup job"); | |
782 | eval { mon_cmd($vmid, 'backup-cancel') }; | |
783 | $self->logerr($@) if $@; | |
784 | } | |
785 | ||
91bd6c90 DM |
786 | sub snapshot { |
787 | my ($self, $task, $vmid) = @_; | |
788 | ||
789 | # nothing to do | |
1e3baf05 DM |
790 | } |
791 | ||
792 | sub cleanup { | |
793 | my ($self, $task, $vmid) = @_; | |
794 | ||
91bd6c90 | 795 | # nothing to do ? |
1e3baf05 DM |
796 | } |
797 | ||
798 | 1; |