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add qemu_img_convert

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also work with snapshot as source for qcow2,rbd,sheepdog.

Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
This commit is contained in:
Alexandre Derumier 2013-04-29 08:41:01 +02:00 committed by Dietmar Maurer
parent 6116f72902
commit 5133de429e
1 changed files with 61 additions and 0 deletions
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61
PVE/QemuServer.pm
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@ -4477,4 +4477,65 @@ sub is_template {
return 1 if defined $conf->{template} && $conf->{template} == 1;
}
sub qemu_img_convert {
my ($src_volid, $dst_volid, $size, $snapname) = @_;
my $storecfg = PVE::Storage::config();
my ($src_storeid, $src_volname) = PVE::Storage::parse_volume_id($src_volid, 1);
my ($dst_storeid, $dst_volname) = PVE::Storage::parse_volume_id($dst_volid, 1);
if ($src_storeid && $dst_storeid) {
my $src_scfg = PVE::Storage::storage_config($storecfg, $src_storeid);
my $dst_scfg = PVE::Storage::storage_config($storecfg, $dst_storeid);
my $src_format = qemu_img_format($src_scfg, $src_volname);
my $dst_format = qemu_img_format($dst_scfg, $dst_volname);
my $src_path = PVE::Storage::path($storecfg, $src_volid, $snapname);
my $dst_path = PVE::Storage::path($storecfg, $dst_volid);
my $cmd = [];
push @$cmd, '/usr/bin/qemu-img', 'convert', '-t', 'writeback', '-p', '-C';
push @$cmd, '-s', $snapname if($snapname && $src_format eq "qcow2");
push @$cmd, '-f', $src_format, '-O', $dst_format, $src_path, $dst_path;
my $parser = sub {
my $line = shift;
if($line =~ m/\((\S+)\/100\%\)/){
my $percent = $1;
my $transferred = int($size * $percent / 100);
my $remaining = $size - $transferred;
print "transferred: $transferred bytes remaining: $remaining bytes total: $size bytes progression: $percent %\n";
}
};
eval { run_command($cmd, timeout => undef, outfunc => $parser); };
my $err = $@;
die "copy failed: $err" if $err;
}
}
sub qemu_img_format {
my ($scfg, $volname) = @_;
if ($scfg->{path} && $volname =~ m/\.(raw|qcow2|qed|vmdk)$/){
return $1;
}
elsif ($scfg->{type} eq 'nexenta' || $scfg->{type} eq 'iscsidirect'){
return "iscsi";
}
elsif ($scfg->{type} eq 'lvm' || $scfg->{type} eq 'iscsi'){
return "host_device";
}
elsif ($scfg->{type} eq 'rbd'){
return "raw";
}
#sheepdog other qemu block driver
else{
return $scfg->{type};
}
}
1;