]>
git.proxmox.com Git - qemu-server.git/blob - PVE/VZDump/QemuServer.pm
1 package PVE
::VZDump
::QemuServer
;
9 use PVE
::Cluster
qw(cfs_read_file);
15 use base qw
(PVE
::VZDump
::Plugin
);
18 my ($class, $vzdump) = @_;
20 PVE
::VZDump
::check_bin
('qm');
22 my $self = bless { vzdump
=> $vzdump };
24 $self->{vmlist
} = PVE
::QemuServer
::vzlist
();
25 $self->{storecfg
} = PVE
::Storage
::config
();
38 return [ keys %{$self->{vmlist
}} ];
42 my ($self, $task, $vmid, $mode) = @_;
46 my $conf = $self->{vmlist
}->{$vmid} = PVE
::QemuServer
::load_config
($vmid);
48 $task->{hostname
} = $conf->{name
};
50 my $lvmmap = PVE
::VZDump
::get_lvm_mapping
();
52 my $hostname = PVE
::INotify
::nodename
();
58 my $snapshot_count = 0;
60 PVE
::QemuServer
::foreach_drive
($conf, sub {
61 my ($ds, $drive) = @_;
63 return if PVE
::QemuServer
::drive_is_cdrom
($drive);
65 if (defined($drive->{backup
}) && $drive->{backup
} eq "no") {
66 $self->loginfo("exclude disk '$ds' (backup=no)");
70 my $volid = $drive->{file
};
74 my ($storeid, $volname) = PVE
::Storage
::parse_volume_id
($volid, 1);
76 PVE
::Storage
::activate_storage
($self->{storecfg
}, $storeid);
77 $path = PVE
::Storage
::path
($self->{storecfg
}, $volid);
84 die "no such volume '$volid'\n" if ! -e
$path;
86 my $diskinfo = { path
=> $path , volid
=> $volid, storeid
=> $storeid,
87 snappath
=> $path, virtdev
=> $ds };
91 $diskinfo->{type
} = 'block';
93 $diskinfo->{filename
} = "vm-disk-$ds.raw";
95 if ($mode eq 'snapshot') {
96 my ($lvmvg, $lvmlv) = @{$lvmmap->{$path}} if defined ($lvmmap->{$path});
97 die ("mode failure - unable to detect lvm volume group\n") if !$lvmvg;
99 $ind->{$lvmvg} = 0 if !defined $ind->{$lvmvg};
100 $diskinfo->{snapname
} = "vzsnap-$hostname-$ind->{$lvmvg}";
101 $diskinfo->{snapdev
} = "/dev/$lvmvg/$diskinfo->{snapname}";
102 $diskinfo->{lvmvg
} = $lvmvg;
103 $diskinfo->{lvmlv
} = $lvmlv;
104 $diskinfo->{snappath
} = $diskinfo->{snapdev
};
112 $diskinfo->{type
} = 'file';
114 my (undef, $dir, $ext) = fileparse
($path, qr/\.[^.]*/);
116 $diskinfo->{filename
} = "vm-disk-$ds$ext";
118 if ($mode eq 'snapshot') {
120 my ($srcdev, $lvmpath, $lvmvg, $lvmlv, $fstype) =
121 PVE
::VZDump
::get_lvm_device
($dir, $lvmmap);
123 my $targetdev = PVE
::VZDump
::get_lvm_device
($task->{dumpdir
}, $lvmmap);
125 die ("mode failure - unable to detect lvm volume group\n") if !$lvmvg;
126 die ("mode failure - wrong lvm mount point '$lvmpath'\n") if $dir !~ m
|/?$lvmpath/?
|;
127 die ("mode failure - unable to dump into snapshot (use option --dumpdir)\n")
128 if $targetdev eq $srcdev;
130 $ind->{$lvmvg} = 0 if !defined $ind->{$lvmvg};
132 my $info = $mountinfo->{$lvmpath};
134 my $snapname = "vzsnap-$hostname-$ind->{$lvmvg}";
135 my $snapdev = "/dev/$lvmvg/$snapname";
136 $mountinfo->{$lvmpath} = $info = {
138 snapname
=> $snapname,
139 mountpoint
=> "/mnt/vzsnap$mountind",
147 $diskinfo->{snapdev
} = $info->{snapdev
};
148 $diskinfo->{snapname
} = $info->{snapname
};
149 $diskinfo->{mountpoint
} = $info->{mountpoint
};
151 $diskinfo->{lvmvg
} = $lvmvg;
152 $diskinfo->{lvmlv
} = $lvmlv;
154 $diskinfo->{fstype
} = $fstype;
155 $diskinfo->{lvmpath
} = $lvmpath;
157 $diskinfo->{snappath
} = $path;
158 $diskinfo->{snappath
} =~ s
|/?$lvmpath/?
|$diskinfo->{mountpoint
}/|;
162 push @{$task->{disks
}}, $diskinfo;
166 $task->{snapshot_count
} = $snapshot_count;
170 my ($self, $vmid) = @_;
172 my $running = PVE
::QemuServer
::check_running
($vmid) ?
1 : 0;
174 return wantarray ?
($running, $running ?
'running' : 'stopped') : $running;
178 my ($self, $vmid) = @_;
180 $self->cmd ("qm set $vmid --lock backup");
184 my ($self, $vmid) = @_;
186 $self->cmd ("qm unlock $vmid");
190 my ($self, $task, $vmid) = @_;
192 my $opts = $self->{vzdump
}->{opts
};
194 my $wait = $opts->{stopwait
} * 60;
195 # send shutdown and wait
196 $self->cmd ("qm shutdown $vmid --skiplock --keepActive --timeout $wait");
200 my ($self, $task, $vmid) = @_;
202 $self->cmd ("qm start $vmid --skiplock");
206 my ($self, $task, $vmid) = @_;
208 $self->cmd ("qm suspend $vmid --skiplock");
212 my ($self, $task, $vmid) = @_;
214 $self->cmd ("qm resume $vmid --skiplock");
218 my ($self, $storeid, $name, $size, $srcdev) = @_;
220 my $cmd = "lvcreate --size ${size}M --snapshot --name '$name' '$srcdev'";
224 my $scfg = PVE
::Storage
::storage_config
($self->{storecfg
}, $storeid);
226 # lock shared storage
227 return PVE
::Storage
::cluster_lock_storage
($storeid, $scfg->{shared
}, undef, sub {
236 my ($self, $storeid, $name, $snapdev, $noerr) = @_;
238 my $cmd = ['lvremove', '-f', $snapdev];
240 # loop, because we often get 'LV in use: not deactivating'
241 # we use run_command() because we do not want to log errors here
246 my $scfg = PVE
::Storage
::storage_config
($self->{storecfg
}, $storeid);
247 # lock shared storage
248 return PVE
::Storage
::cluster_lock_storage
($storeid, $scfg->{shared
}, undef, sub {
249 PVE
::Tools
::run_command
($cmd, outfunc
=> sub {}, errfunc
=> {});
252 PVE
::Tools
::run_command
($cmd, outfunc
=> sub {}, errfunc
=> {});
262 $self->loginfo("lvremove failed - trying again in $wait seconds") if $wait >= 8;
269 my ($self, $task, $vmid) = @_;
271 my $opts = $self->{vzdump
}->{opts
};
275 foreach my $di (@{$task->{disks
}}) {
276 if ($di->{type
} eq 'block') {
278 if (-b
$di->{snapdev
}) {
279 $self->loginfo ("trying to remove stale snapshot '$di->{snapdev}'");
280 $self->snapshot_free ($di->{storeid
}, $di->{snapname
}, $di->{snapdev
}, 1);
283 $di->{cleanup_lvm
} = 1;
284 $self->snapshot_alloc ($di->{storeid
}, $di->{snapname
}, $opts->{size
},
285 "/dev/$di->{lvmvg}/$di->{lvmlv}");
287 } elsif ($di->{type
} eq 'file') {
289 next if defined ($mounts->{$di->{mountpoint
}}); # already mounted
291 if (-b
$di->{snapdev
}) {
292 $self->loginfo ("trying to remove stale snapshot '$di->{snapdev}'");
294 $self->cmd_noerr ("umount $di->{mountpoint}");
295 $self->snapshot_free ($di->{storeid
}, $di->{snapname
}, $di->{snapdev
}, 1);
298 mkpath
$di->{mountpoint
}; # create mount point for lvm snapshot
300 $di->{cleanup_lvm
} = 1;
302 $self->snapshot_alloc ($di->{storeid
}, $di->{snapname
}, $opts->{size
},
303 "/dev/$di->{lvmvg}/$di->{lvmlv}");
305 my $mopts = $di->{fstype
} eq 'xfs' ?
"-o nouuid" : '';
307 $di->{snapshot_mount
} = 1;
309 $self->cmd ("mount -t $di->{fstype} $mopts $di->{snapdev} $di->{mountpoint}");
311 $mounts->{$di->{mountpoint
}} = 1;
325 my $fh = IO
::File-
>new ($path, "r");
326 die "unable to open '$path' to detect device size\n" if !$fh;
327 my $size = sysseek $fh, 0, 2;
329 die "unable to detect device size for '$path'\n" if !$size;
335 my ($self, $task, $vmid) = @_;
337 my $conffile = PVE
::QemuServer
::config_file
($vmid);
339 my $outfile = "$task->{tmpdir}/qemu-server.conf";
346 $outfd = IO
::File-
>new (">$outfile") ||
347 die "unable to open '$outfile'";
348 $conffd = IO
::File-
>new ($conffile, 'r') ||
349 die "unable open '$conffile'";
351 while (defined (my $line = <$conffd>)) {
352 next if $line =~ m/^\#vzdump\#/; # just to be sure
356 foreach my $di (@{$task->{disks
}}) {
357 if ($di->{type
} eq 'block' || $di->{type
} eq 'file') {
358 my $size = get_size
($di->{snappath
});
359 my $storeid = $di->{storeid
} || '';
360 print $outfd "#vzdump#map:$di->{virtdev}:$di->{filename}:$size:$storeid:\n";
362 die "internal error";
368 close ($outfd) if $outfd;
369 close ($conffd) if $conffd;
375 my ($self, $task, $vmid, $filename) = @_;
377 my $conffile = "$task->{tmpdir}/qemu-server.conf";
379 my $opts = $self->{vzdump
}->{opts
};
381 my $starttime = time ();
385 my @filea = ($conffile, 'qemu-server.conf'); # always first file in tar
386 foreach my $di (@{$task->{disks
}}) {
387 if ($di->{type
} eq 'block' || $di->{type
} eq 'file') {
388 push @filea, $di->{snappath
}, $di->{filename
};
394 my $files = join (' ', map { "'$_'" } @filea);
396 my $cmd = "/usr/lib/qemu-server/vmtar $files";
397 my $bwl = $opts->{bwlimit
}*1024; # bandwidth limit for cstream
398 $cmd .= "|cstream -t $bwl" if $opts->{bwlimit
};
399 $cmd .= "|gzip" if $opts->{compress
};
401 if ($opts->{stdout
}) {
402 $self->cmd ($cmd, output
=> ">&=" . fileno($opts->{stdout
}));
404 $self->cmd ("$cmd >$filename");
409 my ($self, $task, $vmid) = @_;
411 foreach my $di (@{$task->{disks
}}) {
413 if ($di->{snapshot_mount
}) {
414 $self->cmd_noerr ("umount $di->{mountpoint}");
417 if ($di->{cleanup_lvm
}) {
418 if (-b
$di->{snapdev
}) {
419 if ($di->{type
} eq 'block') {
420 $self->snapshot_free ($di->{storeid
}, $di->{snapname
}, $di->{snapdev
}, 1);
421 } elsif ($di->{type
} eq 'file') {
422 $self->snapshot_free ($di->{storeid
}, $di->{snapname
}, $di->{snapdev
}, 1);