# Glusterfs helper functions
+my $server_test_results = {};
+
+my $get_active_server = sub {
+ my ($scfg, $return_default_if_offline) = @_;
+
+ my $defaultserver = $scfg->{server} ? $scfg->{server} : 'localhost';
+
+ if ($return_default_if_offline && !defined($scfg->{server2})) {
+ # avoid delays (there is no backup server anyways)
+ return $defaultserver;
+ }
+
+ my $serverlist = [ $defaultserver ];
+ push @$serverlist, $scfg->{server2} if $scfg->{server2};
+
+ my $ctime = time();
+ foreach my $server (@$serverlist) {
+ my $stat = $server_test_results->{$server};
+ return $server if $stat && $stat->{active} && (($ctime - $stat->{time}) <= 2);
+ }
+
+ foreach my $server (@$serverlist) {
+ my $status = 0;
+
+ if ($server && $server ne 'localhost' && $server ne '127.0.0.1' && $server ne '::1') {
+
+ my $p = Net::Ping->new("tcp", 2);
+ $status = $p->ping($server);
+
+ } else {
+
+ my $parser = sub {
+ my $line = shift;
+
+ if ($line =~ m/Status: Started$/) {
+ $status = 1;
+ }
+ };
+
+ my $cmd = ['/usr/sbin/gluster', 'volume', 'info', $scfg->{volume}];
+
+ run_command($cmd, errmsg => "glusterfs error", errfunc => sub {}, outfunc => $parser);
+ }
+
+ $server_test_results->{$server} = { time => time(), active => $status };
+ return $server if $status;
+ }
+
+ return $defaultserver if $return_default_if_offline;
+
+ return undef;
+};
+
sub read_proc_mounts {
local $/; # enable slurp mode
}
sub glusterfs_is_mounted {
- my ($server, $volume, $mountpoint, $mountdata) = @_;
-
- my $source = "$server:$volume";
+ my ($volume, $mountpoint, $mountdata) = @_;
$mountdata = read_proc_mounts() if !$mountdata;
- if ($mountdata =~ m|^$source/?\s$mountpoint\sfuse.glusterfs|m) {
+ if ($mountdata =~ m|^\S+:$volume/?\s$mountpoint\sfuse.glusterfs|m) {
return $mountpoint;
}
description => "Glusterfs Volume.",
type => 'string',
},
+ server2 => {
+ description => "Backup volfile server IP or DNS name.",
+ type => 'string', format => 'pve-storage-server',
+ requires => 'server',
+ },
+ transport => {
+ description => "Gluster transport: tcp or rdma",
+ type => 'string',
+ enum => ['tcp', 'rdma', 'unix'],
+ },
};
}
return {
path => { fixed => 1 },
server => { optional => 1 },
+ server2 => { optional => 1 },
volume => { fixed => 1 },
+ transport => { optional => 1 },
nodes => { optional => 1 },
disable => { optional => 1 },
maxfiles => { optional => 1 },
# Storage implementation
+sub parse_name_dir {
+ my $name = shift;
+
+ if ($name =~ m!^((base-)?[^/\s]+\.(raw|qcow2|vmdk))$!) {
+ return ($1, $3, $2);
+ }
+
+ die "unable to parse volume filename '$name'\n";
+}
+
+my $find_free_diskname = sub {
+ my ($imgdir, $vmid, $fmt) = @_;
+
+ my $disk_ids = {};
+ PVE::Tools::dir_glob_foreach($imgdir,
+ qr!(vm|base)-$vmid-disk-(\d+)\..*!,
+ sub {
+ my ($fn, $type, $disk) = @_;
+ $disk_ids->{$disk} = 1;
+ });
+
+ for (my $i = 1; $i < 100; $i++) {
+ if (!$disk_ids->{$i}) {
+ return "vm-$vmid-disk-$i.$fmt";
+ }
+ }
+
+ die "unable to allocate a new image name for VM $vmid in '$imgdir'\n";
+};
+
sub path {
- my ($class, $scfg, $volname, $storeid) = @_;
+ my ($class, $scfg, $volname, $storeid, $snapname) = @_;
- my ($vtype, $name, $vmid) = $class->parse_volname($volname);
+ my ($vtype, $name, $vmid, undef, undef, $isBase, $format) =
+ $class->parse_volname($volname);
- my $server = $scfg->{server} ? $scfg->{server} : 'localhost';
- my $glustervolume = $scfg->{volume};
+ # Note: qcow2/qed has internal snapshot, so path is always
+ # the same (with or without snapshot => same file).
+ die "can't snapshot this image format\n"
+ if defined($snapname) && $format !~ m/^(qcow2|qed)$/;
my $path = undef;
- if($vtype eq 'images'){
- $path = "gluster://$server/$glustervolume/images/$vmid/$name";
- }else{
+ if ($vtype eq 'images') {
+
+ my $server = &$get_active_server($scfg, 1);
+ my $glustervolume = $scfg->{volume};
+ my $transport = $scfg->{transport};
+ my $protocol = "gluster";
+
+ if ($transport) {
+ $protocol = "gluster+$transport";
+ }
+
+ $path = "$protocol://$server/$glustervolume/images/$vmid/$name";
+
+ } else {
my $dir = $class->get_subdir($scfg, $vtype);
$path = "$dir/$name";
}
-
return wantarray ? ($path, $vmid, $vtype) : $path;
}
+sub alloc_image {
+ my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_;
+
+ my $imagedir = $class->get_subdir($scfg, 'images');
+ $imagedir .= "/$vmid";
+
+ mkpath $imagedir;
+
+ $name = &$find_free_diskname($imagedir, $vmid, $fmt) if !$name;
+
+ my (undef, $tmpfmt) = parse_name_dir($name);
+
+ die "illegal name '$name' - wrong extension for format ('$tmpfmt != '$fmt')\n"
+ if $tmpfmt ne $fmt;
+
+ my $path = "$imagedir/$name";
+
+ die "disk image '$path' already exists\n" if -e $path;
+
+ my $server = &$get_active_server($scfg, 1);
+ my $glustervolume = $scfg->{volume};
+ my $volumepath = "gluster://$server/$glustervolume/images/$vmid/$name";
+
+ my $cmd = ['/usr/bin/qemu-img', 'create'];
+
+ push @$cmd, '-o', 'preallocation=metadata' if $fmt eq 'qcow2';
+
+ push @$cmd, '-f', $fmt, $volumepath, "${size}K";
+
+ run_command($cmd, errmsg => "unable to create image");
+
+ return "$vmid/$name";
+}
+
sub status {
my ($class, $storeid, $scfg, $cache) = @_;
$cache->{mountdata} = read_proc_mounts() if !$cache->{mountdata};
my $path = $scfg->{path};
- my $server = $scfg->{server} ? $scfg->{server} : 'localhost';
my $volume = $scfg->{volume};
- return undef if !glusterfs_is_mounted($server, $volume, $path, $cache->{mountdata});
+ return undef if !glusterfs_is_mounted($volume, $path, $cache->{mountdata});
return $class->SUPER::status($storeid, $scfg, $cache);
}
$cache->{mountdata} = read_proc_mounts() if !$cache->{mountdata};
my $path = $scfg->{path};
- my $server = $scfg->{server} ? $scfg->{server} : 'localhost';
my $volume = $scfg->{volume};
- if (!glusterfs_is_mounted($server, $volume, $path, $cache->{mountdata})) {
-
+ if (!glusterfs_is_mounted($volume, $path, $cache->{mountdata})) {
+
mkpath $path;
die "unable to activate storage '$storeid' - " .
"directory '$path' does not exist\n" if ! -d $path;
- glusterfs_mount($server, $volume, $path, $scfg->{options});
+ my $server = &$get_active_server($scfg, 1);
+
+ glusterfs_mount($server, $volume, $path);
}
$class->SUPER::activate_storage($storeid, $scfg, $cache);
$cache->{mountdata} = read_proc_mounts() if !$cache->{mountdata};
my $path = $scfg->{path};
- my $server = $scfg->{server} ? $scfg->{server} : 'localhost';
my $volume = $scfg->{volume};
- if (glusterfs_is_mounted($server, $volume, $path, $cache->{mountdata})) {
+ if (glusterfs_is_mounted($volume, $path, $cache->{mountdata})) {
my $cmd = ['/bin/umount', $path];
run_command($cmd, errmsg => 'umount error');
}
}
sub check_connection {
- my ($class, $storeid, $scfg) = @_;
-
- my $server = $scfg->{server} ? $scfg->{server} : 'localhost';
- my $volume = $scfg->{volume};
-
- my $status = 0;
-
- if($server && $server ne 'localhost' && $server ne '127.0.0.1'){
- my $p = Net::Ping->new("tcp", 2);
- $status = $p->ping($server);
-
- }else{
-
- my $parser = sub {
- my $line = shift;
-
- if ($line =~ m/Status: Started$/) {
- $status = 1;
- }
- };
-
- my $cmd = ['/usr/sbin/gluster', 'volume', 'info', $volume];
+ my ($class, $storeid, $scfg, $cache) = @_;
- run_command($cmd, errmsg => "glusterfs error", errfunc => sub {}, outfunc => $parser);
- }
+ my $server = &$get_active_server($scfg);
- return $status;
+ return defined($server) ? 1 : 0;
}
1;
projects / pve-storage.git / blobdiff