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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 | ||
912792e2 | 22 | use PVE::QemuConfig; |
1e3baf05 | 23 | use PVE::QemuServer; |
3392d6ca | 24 | use PVE::QemuServer::Machine; |
0a13e08e | 25 | use PVE::QemuServer::Monitor qw(mon_cmd); |
1e3baf05 DM |
26 | |
27 | use base qw (PVE::VZDump::Plugin); | |
28 | ||
29 | sub new { | |
30 | my ($class, $vzdump) = @_; | |
874a096e | 31 | |
66ab1d91 | 32 | PVE::VZDump::check_bin('qm'); |
1e3baf05 | 33 | |
e2812738 | 34 | my $self = bless { vzdump => $vzdump }, $class; |
1e3baf05 DM |
35 | |
36 | $self->{vmlist} = PVE::QemuServer::vzlist(); | |
37 | $self->{storecfg} = PVE::Storage::config(); | |
38 | ||
39 | return $self; | |
40 | }; | |
41 | ||
1e3baf05 DM |
42 | sub type { |
43 | return 'qemu'; | |
44 | } | |
45 | ||
46 | sub vmlist { | |
47 | my ($self) = @_; | |
1e3baf05 DM |
48 | return [ keys %{$self->{vmlist}} ]; |
49 | } | |
50 | ||
51 | sub prepare { | |
52 | my ($self, $task, $vmid, $mode) = @_; | |
53 | ||
54 | $task->{disks} = []; | |
55 | ||
ffda963f | 56 | my $conf = $self->{vmlist}->{$vmid} = PVE::QemuConfig->load_config($vmid); |
1e3baf05 | 57 | |
85b84b7b WL |
58 | $self->loginfo("VM Name: $conf->{name}") |
59 | if defined($conf->{name}); | |
60 | ||
91bd6c90 DM |
61 | $self->{vm_was_running} = 1; |
62 | if (!PVE::QemuServer::check_running($vmid)) { | |
63 | $self->{vm_was_running} = 0; | |
585b6e28 DM |
64 | } |
65 | ||
1e3baf05 DM |
66 | $task->{hostname} = $conf->{name}; |
67 | ||
874a096e | 68 | my $hostname = PVE::INotify::nodename(); |
1e3baf05 | 69 | |
b969cc68 DM |
70 | my $vollist = []; |
71 | my $drivehash = {}; | |
185df962 | 72 | my $backup_volumes = PVE::QemuConfig->get_backup_volumes($conf); |
1e3baf05 | 73 | |
185df962 AL |
74 | foreach my $volume (@{$backup_volumes}) { |
75 | my $name = $volume->{key}; | |
5a92276e | 76 | my $volume_config = $volume->{volume_config}; |
185df962 | 77 | my $volid = $volume_config->{file}; |
1e3baf05 | 78 | |
185df962 AL |
79 | if (!$volume->{included}) { |
80 | $self->loginfo("exclude disk '$name' '$volid' ($volume->{reason})"); | |
81 | next; | |
82 | } elsif ($self->{vm_was_running} && $volume_config->{iothread}) { | |
3392d6ca | 83 | if (!PVE::QemuServer::Machine::runs_at_least_qemu_version($vmid, 4, 0, 1)) { |
185df962 | 84 | die "disk '$name' '$volid' (iothread=on) can't use backup feature with running QEMU " . |
48343b3f TL |
85 | "version < 4.0.1! Either set backup=no for this drive or upgrade QEMU and restart VM\n"; |
86 | } | |
b53b958b | 87 | } else { |
185df962 AL |
88 | my $log = "include disk '$name' '$volid'"; |
89 | if (defined(my $size = $volume_config->{size})) { | |
90 | my $readable_size = PVE::JSONSchema::format_size($size); | |
0db93c2d | 91 | $log .= " $readable_size"; |
185df962 | 92 | } |
0db93c2d | 93 | $self->loginfo($log); |
874a096e | 94 | } |
b969cc68 | 95 | |
f5bdefa4 | 96 | my ($storeid, $volname) = PVE::Storage::parse_volume_id($volid, 1); |
b969cc68 | 97 | push @$vollist, $volid if $storeid; |
185df962 AL |
98 | $drivehash->{$name} = $volume->{volume_config}; |
99 | } | |
b969cc68 DM |
100 | |
101 | PVE::Storage::activate_volumes($self->{storecfg}, $vollist); | |
102 | ||
075b417a DM |
103 | foreach my $ds (sort keys %$drivehash) { |
104 | my $drive = $drivehash->{$ds}; | |
874a096e | 105 | |
1e3baf05 | 106 | my $volid = $drive->{file}; |
f5bdefa4 | 107 | my ($storeid, $volname) = PVE::Storage::parse_volume_id($volid, 1); |
a113a58a TL |
108 | |
109 | my $path = $volid; | |
1e3baf05 | 110 | if ($storeid) { |
b969cc68 | 111 | $path = PVE::Storage::path($self->{storecfg}, $volid); |
1e3baf05 | 112 | } |
b969cc68 | 113 | next if !$path; |
1e3baf05 | 114 | |
a113a58a | 115 | my ($size, $format) = eval { PVE::Storage::volume_size_info($self->{storecfg}, $volid, 5) }; |
daca220d | 116 | die "no such volume '$volid'\n" if $@; |
91bd6c90 | 117 | |
a113a58a TL |
118 | my $diskinfo = { |
119 | path => $path, | |
120 | volid => $volid, | |
121 | storeid => $storeid, | |
122 | format => $format, | |
123 | virtdev => $ds, | |
124 | qmdevice => "drive-$ds", | |
125 | }; | |
1e3baf05 DM |
126 | |
127 | if (-b $path) { | |
1e3baf05 | 128 | $diskinfo->{type} = 'block'; |
1e3baf05 | 129 | } else { |
1e3baf05 | 130 | $diskinfo->{type} = 'file'; |
1e3baf05 DM |
131 | } |
132 | ||
133 | push @{$task->{disks}}, $diskinfo; | |
b969cc68 | 134 | } |
1e3baf05 DM |
135 | } |
136 | ||
137 | sub vm_status { | |
138 | my ($self, $vmid) = @_; | |
139 | ||
66ab1d91 | 140 | my $running = PVE::QemuServer::check_running($vmid) ? 1 : 0; |
874a096e DM |
141 | |
142 | return wantarray ? ($running, $running ? 'running' : 'stopped') : $running; | |
1e3baf05 DM |
143 | } |
144 | ||
145 | sub lock_vm { | |
146 | my ($self, $vmid) = @_; | |
147 | ||
f301bc0d | 148 | PVE::QemuConfig->set_lock($vmid, 'backup'); |
1e3baf05 DM |
149 | } |
150 | ||
151 | sub unlock_vm { | |
152 | my ($self, $vmid) = @_; | |
153 | ||
f301bc0d | 154 | PVE::QemuConfig->remove_lock($vmid, 'backup'); |
1e3baf05 DM |
155 | } |
156 | ||
157 | sub stop_vm { | |
158 | my ($self, $task, $vmid) = @_; | |
159 | ||
160 | my $opts = $self->{vzdump}->{opts}; | |
161 | ||
162 | my $wait = $opts->{stopwait} * 60; | |
163 | # send shutdown and wait | |
254575e9 | 164 | $self->cmd ("qm shutdown $vmid --skiplock --keepActive --timeout $wait"); |
1e3baf05 DM |
165 | } |
166 | ||
167 | sub start_vm { | |
168 | my ($self, $task, $vmid) = @_; | |
169 | ||
66ab1d91 | 170 | $self->cmd ("qm start $vmid --skiplock"); |
1e3baf05 DM |
171 | } |
172 | ||
173 | sub suspend_vm { | |
174 | my ($self, $task, $vmid) = @_; | |
175 | ||
66ab1d91 | 176 | $self->cmd ("qm suspend $vmid --skiplock"); |
1e3baf05 DM |
177 | } |
178 | ||
179 | sub resume_vm { | |
180 | my ($self, $task, $vmid) = @_; | |
181 | ||
66ab1d91 | 182 | $self->cmd ("qm resume $vmid --skiplock"); |
1e3baf05 DM |
183 | } |
184 | ||
1e3baf05 DM |
185 | sub assemble { |
186 | my ($self, $task, $vmid) = @_; | |
187 | ||
04096e7b | 188 | my $conffile = PVE::QemuConfig->config_file($vmid); |
1e3baf05 DM |
189 | |
190 | my $outfile = "$task->{tmpdir}/qemu-server.conf"; | |
c05f7f3f WL |
191 | my $firewall_src = "/etc/pve/firewall/$vmid.fw"; |
192 | my $firewall_dest = "$task->{tmpdir}/qemu-server.fw"; | |
193 | ||
194 | my $outfd = IO::File->new (">$outfile") || | |
195 | die "unable to open '$outfile'"; | |
196 | my $conffd = IO::File->new ($conffile, 'r') || | |
197 | die "unable open '$conffile'"; | |
198 | ||
199 | my $found_snapshot; | |
391c2230 | 200 | my $found_pending; |
c05f7f3f WL |
201 | while (defined (my $line = <$conffd>)) { |
202 | next if $line =~ m/^\#vzdump\#/; # just to be sure | |
203 | next if $line =~ m/^\#qmdump\#/; # just to be sure | |
391c2230 FG |
204 | if ($line =~ m/^\[(.*)\]\s*$/) { |
205 | if ($1 =~ m/PENDING/i) { | |
206 | $found_pending = 1; | |
207 | } else { | |
208 | $found_snapshot = 1; | |
209 | } | |
1e3baf05 | 210 | } |
1bd6fe13 | 211 | next if $found_snapshot || $found_pending; # skip all snapshots and pending changes config data |
391c2230 | 212 | |
c05f7f3f WL |
213 | if ($line =~ m/^unused\d+:\s*(\S+)\s*/) { |
214 | $self->loginfo("skip unused drive '$1' (not included into backup)"); | |
215 | next; | |
1e3baf05 | 216 | } |
c05f7f3f | 217 | next if $line =~ m/^lock:/ || $line =~ m/^parent:/; |
91bd6c90 | 218 | |
c05f7f3f WL |
219 | print $outfd $line; |
220 | } | |
221 | ||
222 | foreach my $di (@{$task->{disks}}) { | |
223 | if ($di->{type} eq 'block' || $di->{type} eq 'file') { | |
224 | my $storeid = $di->{storeid} || ''; | |
225 | my $format = $di->{format} || ''; | |
226 | print $outfd "#qmdump#map:$di->{virtdev}:$di->{qmdevice}:$storeid:$format:\n"; | |
227 | } else { | |
228 | die "internal error"; | |
91bd6c90 | 229 | } |
c05f7f3f | 230 | } |
1e3baf05 | 231 | |
c05f7f3f WL |
232 | if ($found_snapshot) { |
233 | $self->loginfo("snapshots found (not included into backup)"); | |
234 | } | |
391c2230 FG |
235 | if ($found_pending) { |
236 | $self->loginfo("pending configuration changes found (not included into backup)"); | |
237 | } | |
238 | ||
c05f7f3f | 239 | PVE::Tools::file_copy($firewall_src, $firewall_dest) if -f $firewall_src; |
1e3baf05 DM |
240 | } |
241 | ||
242 | sub archive { | |
fad02a16 | 243 | my ($self, $task, $vmid, $filename, $comp) = @_; |
1e3baf05 | 244 | |
c5983223 | 245 | my $opts = $self->{vzdump}->{opts}; |
c5983223 DM |
246 | my $scfg = $opts->{scfg}; |
247 | ||
69074863 | 248 | if ($self->{vzdump}->{opts}->{pbs}) { |
c5983223 DM |
249 | $self->archive_pbs($task, $vmid); |
250 | } else { | |
251 | $self->archive_vma($task, $vmid, $filename, $comp); | |
252 | } | |
253 | } | |
254 | ||
255 | my $query_backup_status_loop = sub { | |
256 | my ($self, $vmid, $job_uuid) = @_; | |
257 | ||
c5983223 | 258 | my $starttime = time (); |
09eb196b TL |
259 | my $last_time = $starttime; |
260 | my ($last_percent, $last_total, $last_zero, $last_transferred) = (-1, 0, 0, 0); | |
c5983223 DM |
261 | my $transferred; |
262 | ||
09eb196b TL |
263 | my $get_mbps = sub { |
264 | my ($mb, $delta) = @_; | |
265 | return ($mb > 0) ? int(($mb / $delta) / (1000 * 1000)) : 0; | |
266 | }; | |
267 | ||
c5983223 | 268 | while(1) { |
09eb196b TL |
269 | my $status = mon_cmd($vmid, 'query-backup'); |
270 | ||
c5983223 DM |
271 | my $total = $status->{total} || 0; |
272 | $transferred = $status->{transferred} || 0; | |
09eb196b | 273 | my $percent = $total ? int(($transferred * 100)/$total) : 0; |
c5983223 DM |
274 | my $zero = $status->{'zero-bytes'} || 0; |
275 | my $zero_per = $total ? int(($zero * 100)/$total) : 0; | |
276 | ||
277 | die "got unexpected uuid\n" if !$status->{uuid} || ($status->{uuid} ne $job_uuid); | |
278 | ||
279 | my $ctime = time(); | |
280 | my $duration = $ctime - $starttime; | |
281 | ||
282 | my $rbytes = $transferred - $last_transferred; | |
283 | my $wbytes = $rbytes - ($zero - $last_zero); | |
284 | ||
285 | my $timediff = ($ctime - $last_time) || 1; # fixme | |
09eb196b TL |
286 | my $mbps_read = $get_mbps->($rbytes, $timediff); |
287 | my $mbps_write = $get_mbps->($wbytes, $timediff); | |
288 | ||
289 | my $statusline = "status: $percent% ($transferred/$total), sparse ${zero_per}% ($zero), duration $duration, read/write $mbps_read/$mbps_write MB/s"; | |
290 | ||
c5983223 DM |
291 | my $res = $status->{status} || 'unknown'; |
292 | if ($res ne 'active') { | |
293 | $self->loginfo($statusline); | |
09eb196b TL |
294 | if ($res ne 'done') { |
295 | die (($status->{errmsg} || "unknown error") . "\n") if $res eq 'error'; | |
296 | die "got unexpected status '$res'\n"; | |
297 | } elsif ($total != $transferred) { | |
298 | die "got wrong number of transfered bytes ($total != $transferred)\n"; | |
299 | } | |
c5983223 DM |
300 | last; |
301 | } | |
09eb196b | 302 | if ($percent != $last_percent && ($timediff > 2)) { |
c5983223 | 303 | $self->loginfo($statusline); |
09eb196b | 304 | $last_percent = $percent; |
c5983223 DM |
305 | $last_total = $total if $total; |
306 | $last_zero = $zero if $zero; | |
307 | $last_transferred = $transferred if $transferred; | |
308 | $last_time = $ctime; | |
309 | } | |
310 | sleep(1); | |
311 | } | |
312 | ||
313 | my $duration = time() - $starttime; | |
314 | if ($transferred && $duration) { | |
09eb196b TL |
315 | my $mb = int($transferred / (1000 * 1000)); |
316 | my $mbps = $get_mbps->($transferred, $duration); | |
c5983223 DM |
317 | $self->loginfo("transferred $mb MB in $duration seconds ($mbps MB/s)"); |
318 | } | |
319 | }; | |
320 | ||
321 | sub archive_pbs { | |
322 | my ($self, $task, $vmid) = @_; | |
323 | ||
1e3baf05 | 324 | my $conffile = "$task->{tmpdir}/qemu-server.conf"; |
c05f7f3f | 325 | my $firewall = "$task->{tmpdir}/qemu-server.fw"; |
1e3baf05 DM |
326 | |
327 | my $opts = $self->{vzdump}->{opts}; | |
c5983223 DM |
328 | my $scfg = $opts->{scfg}; |
329 | ||
330 | my $starttime = time(); | |
331 | ||
c5983223 DM |
332 | my $server = $scfg->{server}; |
333 | my $datastore = $scfg->{datastore}; | |
334 | my $username = $scfg->{username} // 'root@pam'; | |
335 | my $fingerprint = $scfg->{fingerprint}; | |
336 | ||
337 | my $repo = "$username\@$server:$datastore"; | |
338 | my $password = PVE::Storage::PBSPlugin::pbs_get_password($scfg, $opts->{storage}); | |
339 | ||
d11e91d2 | 340 | my $diskcount = scalar(@{$task->{disks}}); |
c5983223 DM |
341 | if (PVE::QemuConfig->is_template($self->{vmlist}->{$vmid}) || !$diskcount) { |
342 | my @pathlist; | |
343 | foreach my $di (@{$task->{disks}}) { | |
344 | if ($di->{type} eq 'block' || $di->{type} eq 'file') { | |
345 | push @pathlist, "$di->{qmdevice}.img:$di->{path}"; | |
346 | } else { | |
d11e91d2 | 347 | die "implement me (type $di->{type})"; |
c5983223 DM |
348 | } |
349 | } | |
350 | ||
351 | if (!$diskcount) { | |
352 | $self->loginfo("backup contains no disks"); | |
353 | } | |
354 | ||
355 | local $ENV{PBS_PASSWORD} = $password; | |
77b24c62 | 356 | local $ENV{PBS_FINGERPRINT} = $fingerprint if defined($fingerprint); |
c5983223 DM |
357 | my $cmd = [ |
358 | '/usr/bin/proxmox-backup-client', | |
359 | 'backup', | |
360 | '--repository', $repo, | |
361 | '--backup-type', 'vm', | |
362 | '--backup-id', "$vmid", | |
363 | '--backup-time', $task->{backup_time}, | |
d11e91d2 | 364 | ]; |
c5983223 DM |
365 | |
366 | push @$cmd, "qemu-server.conf:$conffile"; | |
367 | push @$cmd, "fw.conf:$firewall" if -e $firewall; | |
368 | push @$cmd, @pathlist if scalar(@pathlist); | |
369 | ||
370 | $self->loginfo("starting template backup"); | |
371 | $self->loginfo(join(' ', @$cmd)); | |
372 | ||
373 | $self->cmd($cmd); | |
374 | ||
375 | return; | |
376 | } | |
377 | ||
81dcd479 TL |
378 | # get list early so we die on unkown drive types before doing anything |
379 | my $devlist = _get_task_devlist($task); | |
c5983223 | 380 | |
0b2f574b | 381 | $self->enforce_vm_running_for_backup($vmid); |
c5983223 | 382 | |
f6168f1a | 383 | my $backup_job_uuid; |
c5983223 DM |
384 | eval { |
385 | $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub { | |
d11e91d2 | 386 | die "interrupted by signal\n"; |
c5983223 DM |
387 | }; |
388 | ||
cb521f2d | 389 | my $fs_frozen = $self->qga_fs_freeze($task, $vmid); |
c5983223 | 390 | |
d11e91d2 TL |
391 | my $params = { |
392 | format => "pbs", | |
393 | 'backup-file' => $repo, | |
394 | 'backup-id' => "$vmid", | |
395 | 'backup-time' => $task->{backup_time}, | |
396 | password => $password, | |
397 | devlist => $devlist, | |
398 | 'config-file' => $conffile, | |
c5983223 | 399 | }; |
d11e91d2 TL |
400 | $params->{fingerprint} = $fingerprint if defined($fingerprint); |
401 | $params->{'firewall-file'} = $firewall if -e $firewall; | |
c5983223 | 402 | |
f57666e9 DM |
403 | $params->{timeout} = 60; # give some time to connect to the backup server |
404 | ||
d11e91d2 | 405 | my $res = eval { mon_cmd($vmid, "backup", %$params) }; |
c5983223 | 406 | my $qmperr = $@; |
d11e91d2 | 407 | $backup_job_uuid = $res->{UUID} if $res; |
c5983223 | 408 | |
1ece829a TL |
409 | if ($fs_frozen) { |
410 | $self->qga_fs_thaw($vmid); | |
c5983223 DM |
411 | } |
412 | ||
413 | die $qmperr if $qmperr; | |
f6168f1a | 414 | die "got no uuid for backup task\n" if !defined($backup_job_uuid); |
c5983223 | 415 | |
f6168f1a | 416 | $self->loginfo("started backup task '$backup_job_uuid'"); |
c5983223 | 417 | |
0b2f574b | 418 | $self->resume_vm_after_job_start($task, $vmid); |
c5983223 | 419 | |
f6168f1a | 420 | $query_backup_status_loop->($self, $vmid, $backup_job_uuid); |
c5983223 DM |
421 | }; |
422 | my $err = $@; | |
c5983223 DM |
423 | if ($err) { |
424 | $self->logerr($err); | |
0b2f574b | 425 | $self->mon_backup_cancel($vmid) if defined($backup_job_uuid); |
c5983223 | 426 | } |
0b2f574b | 427 | $self->restore_vm_power_state($vmid); |
c5983223 DM |
428 | |
429 | die $err if $err; | |
430 | } | |
431 | ||
02da0c65 TL |
432 | my $fork_compressor_pipe = sub { |
433 | my ($self, $comp, $outfileno) = @_; | |
434 | ||
435 | my @pipefd = POSIX::pipe(); | |
436 | my $cpid = fork(); | |
437 | die "unable to fork worker - $!" if !defined($cpid) || $cpid < 0; | |
438 | if ($cpid == 0) { | |
439 | eval { | |
440 | POSIX::close($pipefd[1]); | |
441 | # redirect STDIN | |
442 | my $fd = fileno(STDIN); | |
443 | close STDIN; | |
444 | POSIX::close(0) if $fd != 0; | |
445 | die "unable to redirect STDIN - $!" | |
446 | if !open(STDIN, "<&", $pipefd[0]); | |
447 | ||
448 | # redirect STDOUT | |
449 | $fd = fileno(STDOUT); | |
450 | close STDOUT; | |
451 | POSIX::close (1) if $fd != 1; | |
452 | ||
453 | die "unable to redirect STDOUT - $!" | |
454 | if !open(STDOUT, ">&", $outfileno); | |
455 | ||
456 | exec($comp); | |
457 | die "fork compressor '$comp' failed\n"; | |
458 | }; | |
459 | if (my $err = $@) { | |
460 | $self->logerr($err); | |
461 | POSIX::_exit(1); | |
462 | } | |
463 | POSIX::_exit(0); | |
464 | kill(-9, $$); | |
465 | } else { | |
466 | POSIX::close($pipefd[0]); | |
467 | $outfileno = $pipefd[1]; | |
468 | } | |
469 | ||
470 | return ($cpid, $outfileno); | |
471 | }; | |
472 | ||
c5983223 DM |
473 | sub archive_vma { |
474 | my ($self, $task, $vmid, $filename, $comp) = @_; | |
475 | ||
476 | my $conffile = "$task->{tmpdir}/qemu-server.conf"; | |
477 | my $firewall = "$task->{tmpdir}/qemu-server.fw"; | |
478 | ||
479 | my $opts = $self->{vzdump}->{opts}; | |
480 | ||
481 | my $starttime = time(); | |
1e3baf05 | 482 | |
91bd6c90 DM |
483 | my $speed = 0; |
484 | if ($opts->{bwlimit}) { | |
874a096e | 485 | $speed = $opts->{bwlimit}*1024; |
91bd6c90 | 486 | } |
1e3baf05 | 487 | |
c82935e9 | 488 | my $diskcount = scalar(@{$task->{disks}}); |
ffda963f | 489 | if (PVE::QemuConfig->is_template($self->{vmlist}->{$vmid}) || !$diskcount) { |
23b4120b DM |
490 | my @pathlist; |
491 | foreach my $di (@{$task->{disks}}) { | |
492 | if ($di->{type} eq 'block' || $di->{type} eq 'file') { | |
493 | push @pathlist, "$di->{qmdevice}=$di->{path}"; | |
494 | } else { | |
495 | die "implement me"; | |
496 | } | |
497 | } | |
498 | ||
c82935e9 DM |
499 | if (!$diskcount) { |
500 | $self->loginfo("backup contains no disks"); | |
501 | } | |
502 | ||
23b4120b DM |
503 | my $outcmd; |
504 | if ($comp) { | |
874a096e | 505 | $outcmd = "exec:$comp"; |
23b4120b | 506 | } else { |
874a096e | 507 | $outcmd = "exec:cat"; |
23b4120b DM |
508 | } |
509 | ||
a2fab11a | 510 | $outcmd .= " > $filename" if !$opts->{stdout}; |
23b4120b | 511 | |
c05f7f3f WL |
512 | my $cmd = ['/usr/bin/vma', 'create', '-v', '-c', $conffile]; |
513 | push @$cmd, '-c', $firewall if -e $firewall; | |
514 | push @$cmd, $outcmd, @pathlist; | |
23b4120b DM |
515 | |
516 | $self->loginfo("starting template backup"); | |
517 | $self->loginfo(join(' ', @$cmd)); | |
518 | ||
519 | if ($opts->{stdout}) { | |
6bb12239 | 520 | $self->cmd($cmd, output => ">&" . fileno($opts->{stdout})); |
23b4120b DM |
521 | } else { |
522 | $self->cmd($cmd); | |
523 | } | |
524 | ||
525 | return; | |
526 | } | |
527 | ||
81dcd479 | 528 | my $devlist = _get_task_devlist($task); |
1e3baf05 | 529 | |
0b2f574b | 530 | $self->enforce_vm_running_for_backup($vmid); |
91bd6c90 DM |
531 | |
532 | my $cpid; | |
d2cc2cbe DM |
533 | my $backup_job_uuid; |
534 | ||
91bd6c90 DM |
535 | eval { |
536 | $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub { | |
d11e91d2 | 537 | die "interrupted by signal\n"; |
91bd6c90 DM |
538 | }; |
539 | ||
91bd6c90 DM |
540 | my $outfh; |
541 | if ($opts->{stdout}) { | |
542 | $outfh = $opts->{stdout}; | |
543 | } else { | |
544 | $outfh = IO::File->new($filename, "w") || | |
545 | die "unable to open file '$filename' - $!\n"; | |
546 | } | |
02da0c65 | 547 | my $outfileno = fileno($outfh); |
91bd6c90 | 548 | |
91bd6c90 | 549 | if ($comp) { |
02da0c65 | 550 | ($cpid, $outfileno) = $fork_compressor_pipe->($self, $comp, $outfileno); |
91bd6c90 DM |
551 | } |
552 | ||
e8705fc5 TL |
553 | my $qmpclient = PVE::QMPClient->new(); |
554 | my $backup_cb = sub { | |
555 | my ($vmid, $resp) = @_; | |
556 | $backup_job_uuid = $resp->{return}->{UUID}; | |
557 | }; | |
558 | my $add_fd_cb = sub { | |
91bd6c90 DM |
559 | my ($vmid, $resp) = @_; |
560 | ||
c05f7f3f WL |
561 | my $params = { |
562 | 'backup-file' => "/dev/fdname/backup", | |
563 | speed => $speed, | |
564 | 'config-file' => $conffile, | |
565 | devlist => $devlist | |
566 | }; | |
c05f7f3f | 567 | $params->{'firewall-file'} = $firewall if -e $firewall; |
d11e91d2 | 568 | |
c05f7f3f | 569 | $qmpclient->queue_cmd($vmid, $backup_cb, 'backup', %$params); |
91bd6c90 DM |
570 | }; |
571 | ||
d11e91d2 | 572 | $qmpclient->queue_cmd($vmid, $add_fd_cb, 'getfd', fd => $outfileno, fdname => "backup"); |
ab6a9a0c | 573 | |
cb521f2d | 574 | my $fs_frozen = $self->qga_fs_freeze($task, $vmid); |
874a096e | 575 | |
c5983223 | 576 | eval { $qmpclient->queue_execute(30) }; |
f0f30448 | 577 | my $qmperr = $@; |
91bd6c90 | 578 | |
1ece829a TL |
579 | if ($fs_frozen) { |
580 | $self->qga_fs_thaw($vmid); | |
ab6a9a0c | 581 | } |
d11e91d2 | 582 | |
f0f30448 | 583 | die $qmperr if $qmperr; |
874a096e | 584 | die $qmpclient->{errors}->{$vmid} if $qmpclient->{errors}->{$vmid}; |
91bd6c90 DM |
585 | |
586 | if ($cpid) { | |
874a096e | 587 | POSIX::close($outfileno) == 0 || |
91bd6c90 DM |
588 | die "close output file handle failed\n"; |
589 | } | |
590 | ||
d2cc2cbe | 591 | die "got no uuid for backup task\n" if !defined($backup_job_uuid); |
91bd6c90 | 592 | |
d2cc2cbe | 593 | $self->loginfo("started backup task '$backup_job_uuid'"); |
91bd6c90 | 594 | |
0b2f574b | 595 | $self->resume_vm_after_job_start($task, $vmid); |
91bd6c90 | 596 | |
d2cc2cbe | 597 | $query_backup_status_loop->($self, $vmid, $backup_job_uuid); |
91bd6c90 DM |
598 | }; |
599 | my $err = $@; | |
19599cd9 | 600 | if ($err) { |
60635a57 | 601 | $self->logerr($err); |
0b2f574b | 602 | $self->mon_backup_cancel($vmid) if defined($backup_job_uuid); |
19599cd9 DM |
603 | } |
604 | ||
0b2f574b | 605 | $self->restore_vm_power_state($vmid); |
91bd6c90 DM |
606 | |
607 | if ($err) { | |
874a096e DM |
608 | if ($cpid) { |
609 | kill(9, $cpid); | |
91bd6c90 DM |
610 | waitpid($cpid, 0); |
611 | } | |
612 | die $err; | |
613 | } | |
614 | ||
615 | if ($cpid && (waitpid($cpid, 0) > 0)) { | |
616 | my $stat = $?; | |
617 | my $ec = $stat >> 8; | |
618 | my $signal = $stat & 127; | |
619 | if ($ec || $signal) { | |
874a096e | 620 | die "$comp failed - wrong exit status $ec" . |
91bd6c90 DM |
621 | ($signal ? " (signal $signal)\n" : "\n"); |
622 | } | |
623 | } | |
624 | } | |
625 | ||
81dcd479 TL |
626 | sub _get_task_devlist { |
627 | my ($task) = @_; | |
628 | ||
629 | my $devlist = ''; | |
630 | foreach my $di (@{$task->{disks}}) { | |
631 | if ($di->{type} eq 'block' || $di->{type} eq 'file') { | |
632 | $devlist .= ',' if $devlist; | |
633 | $devlist .= $di->{qmdevice}; | |
634 | } else { | |
635 | die "implement me (type '$di->{type}')"; | |
636 | } | |
637 | } | |
638 | return $devlist; | |
639 | } | |
640 | ||
1ece829a | 641 | sub qga_fs_freeze { |
cb521f2d TL |
642 | my ($self, $task, $vmid) = @_; |
643 | return if !$self->{vmlist}->{$vmid}->{agent} || $task->{mode} eq 'stop' || !$self->{vm_was_running}; | |
1ece829a TL |
644 | |
645 | if (!PVE::QemuServer::qga_check_running($vmid, 1)) { | |
646 | $self->loginfo("skipping guest-agent 'fs-freeze', agent configured but not running?"); | |
647 | return; | |
648 | } | |
649 | ||
650 | $self->loginfo("issuing guest-agent 'fs-freeze' command"); | |
651 | eval { mon_cmd($vmid, "guest-fsfreeze-freeze") }; | |
652 | $self->logerr($@) if $@; | |
653 | ||
654 | return 1; # even on mon command error, ensure we always thaw again | |
655 | } | |
656 | ||
657 | # only call if fs_freeze return 1 | |
658 | sub qga_fs_thaw { | |
659 | my ($self, $vmid) = @_; | |
660 | ||
661 | $self->loginfo("issuing guest-agent 'fs-thaw' command"); | |
662 | eval { mon_cmd($vmid, "guest-fsfreeze-thaw") }; | |
663 | $self->logerr($@) if $@; | |
664 | } | |
665 | ||
0b2f574b TL |
666 | # we need a running QEMU/KVM process for backup, starts a paused (prelaunch) |
667 | # one if VM isn't already running | |
668 | sub enforce_vm_running_for_backup { | |
669 | my ($self, $vmid) = @_; | |
670 | ||
671 | if (PVE::QemuServer::check_running($vmid)) { | |
672 | $self->{vm_was_running} = 1; | |
673 | return; | |
674 | } | |
675 | ||
676 | eval { | |
677 | $self->loginfo("starting kvm to execute backup task"); | |
678 | # start with skiplock | |
0c498cca FG |
679 | my $params = { |
680 | skiplock => 1, | |
681 | paused => 1, | |
682 | }; | |
683 | PVE::QemuServer::vm_start($self->{storecfg}, $vmid, $params); | |
0b2f574b TL |
684 | }; |
685 | die $@ if $@; | |
686 | } | |
687 | ||
688 | # resume VM againe once we got in a clear state (stop mode backup of running VM) | |
689 | sub resume_vm_after_job_start { | |
690 | my ($self, $task, $vmid) = @_; | |
691 | ||
692 | return if !$self->{vm_was_running}; | |
693 | ||
694 | if (my $stoptime = $task->{vmstoptime}) { | |
695 | my $delay = time() - $task->{vmstoptime}; | |
696 | $task->{vmstoptime} = undef; # avoid printing 'online after ..' twice | |
697 | $self->loginfo("resuming VM again after $delay seconds"); | |
698 | } else { | |
699 | $self->loginfo("resuming VM again"); | |
700 | } | |
701 | mon_cmd($vmid, 'cont'); | |
702 | } | |
703 | ||
704 | # stop again if VM was not running before | |
705 | sub restore_vm_power_state { | |
706 | my ($self, $vmid) = @_; | |
707 | ||
708 | # we always let VMs keep running | |
709 | return if $self->{vm_was_running}; | |
710 | ||
711 | eval { | |
712 | my $resp = mon_cmd($vmid, 'query-status'); | |
713 | my $status = $resp && $resp->{status} ? $resp->{status} : 'unknown'; | |
714 | if ($status eq 'prelaunch') { | |
715 | $self->loginfo("stopping kvm after backup task"); | |
716 | PVE::QemuServer::vm_stop($self->{storecfg}, $vmid, 1); | |
717 | } else { | |
718 | $self->loginfo("kvm status changed after backup ('$status') - keep VM running"); | |
719 | } | |
720 | }; | |
721 | warn $@ if $@; | |
722 | } | |
723 | ||
724 | sub mon_backup_cancel { | |
725 | my ($self, $vmid) = @_; | |
726 | ||
727 | $self->loginfo("aborting backup job"); | |
728 | eval { mon_cmd($vmid, 'backup-cancel') }; | |
729 | $self->logerr($@) if $@; | |
730 | } | |
731 | ||
91bd6c90 DM |
732 | sub snapshot { |
733 | my ($self, $task, $vmid) = @_; | |
734 | ||
735 | # nothing to do | |
1e3baf05 DM |
736 | } |
737 | ||
738 | sub cleanup { | |
739 | my ($self, $task, $vmid) = @_; | |
740 | ||
91bd6c90 | 741 | # nothing to do ? |
1e3baf05 DM |
742 | } |
743 | ||
744 | 1; |