423 lines
10 KiB
Perl
423 lines
10 KiB
Perl
package PVE::Storage::ZFSPlugin;
|
|
|
|
use strict;
|
|
use warnings;
|
|
use IO::File;
|
|
use POSIX;
|
|
use PVE::Tools qw(run_command);
|
|
use PVE::Storage::ZFSPoolPlugin;
|
|
use PVE::RPCEnvironment;
|
|
|
|
use base qw(PVE::Storage::ZFSPoolPlugin);
|
|
use PVE::Storage::LunCmd::Comstar;
|
|
use PVE::Storage::LunCmd::Istgt;
|
|
use PVE::Storage::LunCmd::Iet;
|
|
use PVE::Storage::LunCmd::LIO;
|
|
|
|
|
|
my @ssh_opts = ('-o', 'BatchMode=yes');
|
|
my @ssh_cmd = ('/usr/bin/ssh', @ssh_opts);
|
|
my $id_rsa_path = '/etc/pve/priv/zfs';
|
|
|
|
my $lun_cmds = {
|
|
create_lu => 1,
|
|
delete_lu => 1,
|
|
import_lu => 1,
|
|
modify_lu => 1,
|
|
add_view => 1,
|
|
list_view => 1,
|
|
list_lu => 1,
|
|
};
|
|
|
|
my $zfs_unknown_scsi_provider = sub {
|
|
my ($provider) = @_;
|
|
|
|
die "$provider: unknown iscsi provider. Available [comstar, istgt, iet, LIO]";
|
|
};
|
|
|
|
my $zfs_get_base = sub {
|
|
my ($scfg) = @_;
|
|
|
|
if ($scfg->{iscsiprovider} eq 'comstar') {
|
|
return PVE::Storage::LunCmd::Comstar::get_base;
|
|
} elsif ($scfg->{iscsiprovider} eq 'istgt') {
|
|
return PVE::Storage::LunCmd::Istgt::get_base;
|
|
} elsif ($scfg->{iscsiprovider} eq 'iet') {
|
|
return PVE::Storage::LunCmd::Iet::get_base;
|
|
} elsif ($scfg->{iscsiprovider} eq 'LIO') {
|
|
return PVE::Storage::LunCmd::LIO::get_base;
|
|
} else {
|
|
$zfs_unknown_scsi_provider->($scfg->{iscsiprovider});
|
|
}
|
|
};
|
|
|
|
sub zfs_request {
|
|
my ($class, $scfg, $timeout, $method, @params) = @_;
|
|
|
|
$timeout = PVE::RPCEnvironment->is_worker() ? 60*60 : 10
|
|
if !$timeout;
|
|
|
|
my $msg = '';
|
|
|
|
if ($lun_cmds->{$method}) {
|
|
if ($scfg->{iscsiprovider} eq 'comstar') {
|
|
$msg = PVE::Storage::LunCmd::Comstar::run_lun_command($scfg, $timeout, $method, @params);
|
|
} elsif ($scfg->{iscsiprovider} eq 'istgt') {
|
|
$msg = PVE::Storage::LunCmd::Istgt::run_lun_command($scfg, $timeout, $method, @params);
|
|
} elsif ($scfg->{iscsiprovider} eq 'iet') {
|
|
$msg = PVE::Storage::LunCmd::Iet::run_lun_command($scfg, $timeout, $method, @params);
|
|
} elsif ($scfg->{iscsiprovider} eq 'LIO') {
|
|
$msg = PVE::Storage::LunCmd::LIO::run_lun_command($scfg, $timeout, $method, @params);
|
|
} else {
|
|
$zfs_unknown_scsi_provider->($scfg->{iscsiprovider});
|
|
}
|
|
} else {
|
|
|
|
my $target = 'root@' . $scfg->{portal};
|
|
|
|
my $cmd = [@ssh_cmd, '-i', "$id_rsa_path/$scfg->{portal}_id_rsa", $target];
|
|
|
|
if ($method eq 'zpool_list') {
|
|
push @$cmd, 'zpool', 'list';
|
|
} else {
|
|
push @$cmd, 'zfs', $method;
|
|
}
|
|
|
|
push @$cmd, @params;
|
|
|
|
my $output = sub {
|
|
my $line = shift;
|
|
$msg .= "$line\n";
|
|
};
|
|
|
|
run_command($cmd, outfunc => $output, timeout => $timeout);
|
|
}
|
|
|
|
return $msg;
|
|
}
|
|
|
|
sub zfs_get_lu_name {
|
|
my ($class, $scfg, $zvol) = @_;
|
|
|
|
my $base = $zfs_get_base->($scfg);
|
|
|
|
$zvol = ($class->parse_volname($zvol))[1];
|
|
|
|
my $object = ($zvol =~ /^.+\/.+/) ? "$base/$zvol" : "$base/$scfg->{pool}/$zvol";
|
|
|
|
my $lu_name = $class->zfs_request($scfg, undef, 'list_lu', $object);
|
|
|
|
return $lu_name if $lu_name;
|
|
|
|
die "Could not find lu_name for zvol $zvol";
|
|
}
|
|
|
|
sub zfs_add_lun_mapping_entry {
|
|
my ($class, $scfg, $zvol, $guid) = @_;
|
|
|
|
if (!defined($guid)) {
|
|
$guid = $class->zfs_get_lu_name($scfg, $zvol);
|
|
}
|
|
|
|
$class->zfs_request($scfg, undef, 'add_view', $guid);
|
|
}
|
|
|
|
sub zfs_delete_lu {
|
|
my ($class, $scfg, $zvol) = @_;
|
|
|
|
my $guid = $class->zfs_get_lu_name($scfg, $zvol);
|
|
|
|
$class->zfs_request($scfg, undef, 'delete_lu', $guid);
|
|
}
|
|
|
|
sub zfs_create_lu {
|
|
my ($class, $scfg, $zvol) = @_;
|
|
|
|
my $base = $zfs_get_base->($scfg);
|
|
my $guid = $class->zfs_request($scfg, undef, 'create_lu', "$base/$scfg->{pool}/$zvol");
|
|
|
|
return $guid;
|
|
}
|
|
|
|
sub zfs_import_lu {
|
|
my ($class, $scfg, $zvol) = @_;
|
|
|
|
my $base = $zfs_get_base->($scfg);
|
|
$class->zfs_request($scfg, undef, 'import_lu', "$base/$scfg->{pool}/$zvol");
|
|
}
|
|
|
|
sub zfs_resize_lu {
|
|
my ($class, $scfg, $zvol, $size) = @_;
|
|
|
|
my $guid = $class->zfs_get_lu_name($scfg, $zvol);
|
|
|
|
$class->zfs_request($scfg, undef, 'modify_lu', "${size}K", $guid);
|
|
}
|
|
|
|
sub zfs_get_lun_number {
|
|
my ($class, $scfg, $guid) = @_;
|
|
|
|
die "could not find lun_number for guid $guid" if !$guid;
|
|
|
|
if ($class->zfs_request($scfg, undef, 'list_view', $guid) =~ /^(\d+)$/) {
|
|
return $1;
|
|
}
|
|
|
|
die "lun_number for guid $guid is not a number";
|
|
}
|
|
|
|
# Configuration
|
|
|
|
sub type {
|
|
return 'zfs';
|
|
}
|
|
|
|
sub plugindata {
|
|
return {
|
|
content => [ {images => 1}, { images => 1 }],
|
|
};
|
|
}
|
|
|
|
sub properties {
|
|
return {
|
|
iscsiprovider => {
|
|
description => "iscsi provider",
|
|
type => 'string',
|
|
},
|
|
# this will disable write caching on comstar and istgt.
|
|
# it is not implemented for iet. iet blockio always operates with
|
|
# writethrough caching when not in readonly mode
|
|
nowritecache => {
|
|
description => "disable write caching on the target",
|
|
type => 'boolean',
|
|
},
|
|
comstar_tg => {
|
|
description => "target group for comstar views",
|
|
type => 'string',
|
|
},
|
|
comstar_hg => {
|
|
description => "host group for comstar views",
|
|
type => 'string',
|
|
},
|
|
lio_tpg => {
|
|
description => "target portal group for Linux LIO targets",
|
|
type => 'string',
|
|
},
|
|
};
|
|
}
|
|
|
|
sub options {
|
|
return {
|
|
nodes => { optional => 1 },
|
|
disable => { optional => 1 },
|
|
portal => { fixed => 1 },
|
|
target => { fixed => 1 },
|
|
pool => { fixed => 1 },
|
|
blocksize => { fixed => 1 },
|
|
iscsiprovider => { fixed => 1 },
|
|
nowritecache => { optional => 1 },
|
|
sparse => { optional => 1 },
|
|
comstar_hg => { optional => 1 },
|
|
comstar_tg => { optional => 1 },
|
|
lio_tpg => { optional => 1 },
|
|
content => { optional => 1 },
|
|
bwlimit => { optional => 1 },
|
|
};
|
|
}
|
|
|
|
# Storage implementation
|
|
|
|
sub path {
|
|
my ($class, $scfg, $volname, $storeid, $snapname) = @_;
|
|
|
|
die "direct access to snapshots not implemented"
|
|
if defined($snapname);
|
|
|
|
my ($vtype, $name, $vmid) = $class->parse_volname($volname);
|
|
|
|
my $target = $scfg->{target};
|
|
my $portal = $scfg->{portal};
|
|
|
|
my $guid = $class->zfs_get_lu_name($scfg, $name);
|
|
my $lun = $class->zfs_get_lun_number($scfg, $guid);
|
|
|
|
my $path = "iscsi://$portal/$target/$lun";
|
|
|
|
return ($path, $vmid, $vtype);
|
|
}
|
|
|
|
sub create_base {
|
|
my ($class, $storeid, $scfg, $volname) = @_;
|
|
|
|
my $snap = '__base__';
|
|
|
|
my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) =
|
|
$class->parse_volname($volname);
|
|
|
|
die "create_base not possible with base image\n" if $isBase;
|
|
|
|
my $newname = $name;
|
|
$newname =~ s/^vm-/base-/;
|
|
|
|
my $newvolname = $basename ? "$basename/$newname" : "$newname";
|
|
|
|
$class->zfs_delete_lu($scfg, $name);
|
|
$class->zfs_request($scfg, undef, 'rename', "$scfg->{pool}/$name", "$scfg->{pool}/$newname");
|
|
|
|
my $guid = $class->zfs_create_lu($scfg, $newname);
|
|
$class->zfs_add_lun_mapping_entry($scfg, $newname, $guid);
|
|
|
|
my $running = undef; #fixme : is create_base always offline ?
|
|
|
|
$class->volume_snapshot($scfg, $storeid, $newname, $snap, $running);
|
|
|
|
return $newvolname;
|
|
}
|
|
|
|
sub clone_image {
|
|
my ($class, $scfg, $storeid, $volname, $vmid, $snap) = @_;
|
|
|
|
my $name = $class->SUPER::clone_image($scfg, $storeid, $volname, $vmid, $snap);
|
|
|
|
# get ZFS dataset name from PVE volname
|
|
my (undef, $clonedname) = $class->parse_volname($name);
|
|
|
|
my $guid = $class->zfs_create_lu($scfg, $clonedname);
|
|
$class->zfs_add_lun_mapping_entry($scfg, $clonedname, $guid);
|
|
|
|
return $name;
|
|
}
|
|
|
|
sub alloc_image {
|
|
my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_;
|
|
|
|
die "unsupported format '$fmt'" if $fmt ne 'raw';
|
|
|
|
die "illegal name '$name' - should be 'vm-$vmid-*'\n"
|
|
if $name && $name !~ m/^vm-$vmid-/;
|
|
|
|
my $volname = $name;
|
|
|
|
$volname = $class->find_free_diskname($storeid, $scfg, $vmid, $fmt) if !$volname;
|
|
|
|
$class->zfs_create_zvol($scfg, $volname, $size);
|
|
|
|
my $guid = $class->zfs_create_lu($scfg, $volname);
|
|
$class->zfs_add_lun_mapping_entry($scfg, $volname, $guid);
|
|
|
|
return $volname;
|
|
}
|
|
|
|
sub free_image {
|
|
my ($class, $storeid, $scfg, $volname, $isBase) = @_;
|
|
|
|
my ($vtype, $name, $vmid) = $class->parse_volname($volname);
|
|
|
|
$class->zfs_delete_lu($scfg, $name);
|
|
|
|
eval { $class->zfs_delete_zvol($scfg, $name); };
|
|
if (my $err = $@) {
|
|
my $guid = $class->zfs_create_lu($scfg, $name);
|
|
$class->zfs_add_lun_mapping_entry($scfg, $name, $guid);
|
|
die $err;
|
|
}
|
|
|
|
return undef;
|
|
}
|
|
|
|
sub volume_resize {
|
|
my ($class, $scfg, $storeid, $volname, $size, $running) = @_;
|
|
|
|
$volname = ($class->parse_volname($volname))[1];
|
|
|
|
my $new_size = $class->SUPER::volume_resize($scfg, $storeid, $volname, $size, $running);
|
|
|
|
$class->zfs_resize_lu($scfg, $volname, $new_size);
|
|
|
|
return $new_size;
|
|
}
|
|
|
|
sub volume_snapshot_delete {
|
|
my ($class, $scfg, $storeid, $volname, $snap, $running) = @_;
|
|
|
|
$volname = ($class->parse_volname($volname))[1];
|
|
|
|
$class->zfs_request($scfg, undef, 'destroy', "$scfg->{pool}/$volname\@$snap");
|
|
}
|
|
|
|
sub volume_snapshot_rollback {
|
|
my ($class, $scfg, $storeid, $volname, $snap) = @_;
|
|
|
|
$volname = ($class->parse_volname($volname))[1];
|
|
|
|
$class->zfs_delete_lu($scfg, $volname);
|
|
|
|
$class->zfs_request($scfg, undef, 'rollback', "$scfg->{pool}/$volname\@$snap");
|
|
|
|
$class->zfs_import_lu($scfg, $volname);
|
|
|
|
$class->zfs_add_lun_mapping_entry($scfg, $volname);
|
|
}
|
|
|
|
sub storage_can_replicate {
|
|
my ($class, $scfg, $storeid, $format) = @_;
|
|
|
|
return 0;
|
|
}
|
|
|
|
sub volume_has_feature {
|
|
my ($class, $scfg, $feature, $storeid, $volname, $snapname, $running) = @_;
|
|
|
|
my $features = {
|
|
snapshot => { current => 1, snap => 1},
|
|
clone => { base => 1},
|
|
template => { current => 1},
|
|
copy => { base => 1, current => 1},
|
|
};
|
|
|
|
my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) =
|
|
$class->parse_volname($volname);
|
|
|
|
my $key = undef;
|
|
|
|
if ($snapname) {
|
|
$key = 'snap';
|
|
} else {
|
|
$key = $isBase ? 'base' : 'current';
|
|
}
|
|
|
|
return 1 if $features->{$feature}->{$key};
|
|
|
|
return undef;
|
|
}
|
|
|
|
sub activate_storage {
|
|
my ($class, $storeid, $scfg, $cache) = @_;
|
|
|
|
return 1;
|
|
}
|
|
|
|
sub deactivate_storage {
|
|
my ($class, $storeid, $scfg, $cache) = @_;
|
|
|
|
return 1;
|
|
}
|
|
|
|
sub activate_volume {
|
|
my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_;
|
|
|
|
die "unable to activate snapshot from remote zfs storage" if $snapname;
|
|
|
|
return 1;
|
|
}
|
|
|
|
sub deactivate_volume {
|
|
my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_;
|
|
|
|
die "unable to deactivate snapshot from remote zfs storage" if $snapname;
|
|
|
|
return 1;
|
|
}
|
|
|
|
1;
|