return storage_check_node($cfg, $storeid, $node, $noerr);
}
+# storage_can_replicate:
+# return true if storage supports replication
+# (volumes alocated with vdisk_alloc() has replication feature)
+sub storage_can_replicate {
+ my ($cfg, $storeid, $format) = @_;
+
+ my $scfg = storage_config($cfg, $storeid);
+ my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
+ return $plugin->storage_can_replicate($scfg, $storeid, $format);
+}
+
sub storage_ids {
my ($cfg) = @_;
}
sub storage_migrate {
- my ($cfg, $volid, $target_sshinfo, $target_storeid, $target_volname, $base_snapshot, $snapshot, $ratelimit_bps, $insecure) = @_;
+ my ($cfg, $volid, $target_sshinfo, $target_storeid, $target_volname, $base_snapshot, $snapshot, $ratelimit_bps, $insecure, $with_snapshots, $logfunc) = @_;
my ($storeid, $volname) = parse_volume_id($volid);
$target_volname = $volname if !$target_volname;
my $ssh_base = PVE::Cluster::ssh_info_to_command_base($target_sshinfo);
local $ENV{RSYNC_RSH} = PVE::Tools::cmd2string($ssh_base);
- my $no_incremental = sub {
- my ($type) = @_;
- die "incremental migration not supported on storage type $type\n"
- if defined($base_snapshot);
- };
- my $no_snapshot = sub {
- my ($type) = @_;
- # $snapshot is currently only used by replication
- die "replicating storage migration not supported on storage type $type\n"
- if defined($snapshot);
- };
-
my @cstream = ([ '/usr/bin/cstream', '-t', $ratelimit_bps ])
if defined($ratelimit_bps);
- # only implemented for file system based storage
- if ($scfg->{path}) {
- $no_incremental->($scfg->{type});
- $no_snapshot->($scfg->{type});
-
- if ($tcfg->{path}) {
- my $src_plugin = PVE::Storage::Plugin->lookup($scfg->{type});
- my $dst_plugin = PVE::Storage::Plugin->lookup($tcfg->{type});
- my $src = $src_plugin->path($scfg, $volname, $storeid);
- my $dst = $dst_plugin->path($tcfg, $target_volname, $target_storeid);
-
- my $dirname = dirname($dst);
-
- if ($tcfg->{shared}) { # we can do a local copy
-
- run_command(['/bin/mkdir', '-p', $dirname]);
-
- run_command(['/bin/cp', $src, $dst]);
-
- } else {
- run_command([@$ssh, '/bin/mkdir', '-p', $dirname]);
-
- # we use rsync with --sparse, so we can't use --inplace,
- # so we remove file on the target if it already exists to
- # save space
- my ($size, $format) = PVE::Storage::Plugin::file_size_info($src);
- if ($format && ($format eq 'raw') && $size) {
- run_command([@$ssh, 'rm', '-f', $dst],
- outfunc => sub {});
- }
-
- my $cmd;
- my @bwlimit = ("--bwlimit=${ratelimit_bps}b") if defined($ratelimit_bps);
- if ($format eq 'subvol') {
- $cmd = ['/usr/bin/rsync', '--progress', '-X', '-A', '--numeric-ids',
- '-aH', '--delete', '--no-whole-file', '--inplace',
- '--one-file-system', @bwlimit,
- "$src/", "[root\@${target_ip}]:$dst"];
- } else {
- $cmd = ['/usr/bin/rsync', '--progress', '--sparse', '--whole-file',
- @bwlimit,
- $src, "[root\@${target_ip}]:$dst"];
- }
-
- my $percent = -1;
-
- run_command($cmd, outfunc => sub {
- my $line = shift;
-
- if ($line =~ m/^\s*(\d+\s+(\d+)%\s.*)$/) {
- if ($2 > $percent) {
- $percent = $2;
- print "rsync status: $1\n";
- *STDOUT->flush();
- }
- } else {
- print "$line\n";
- *STDOUT->flush();
- }
- });
- }
- } else {
- die "$errstr - target type '$tcfg->{type}' not implemented\n";
+ my $migration_snapshot;
+ if (!defined($snapshot)) {
+ if ($scfg->{type} eq 'zfspool') {
+ $migration_snapshot = 1;
+ $snapshot = '__migration__';
}
+ }
- } elsif ($scfg->{type} eq 'zfspool') {
-
- if ($tcfg->{type} eq 'zfspool') {
-
- die "$errstr - pool on target does not have the same name as on source!"
- if $tcfg->{pool} ne $scfg->{pool};
-
- my $migration_snapshot;
- if (!defined($snapshot)) {
- $migration_snapshot = 1;
- $snapshot = '__migration__';
- }
-
- my (undef, $volname) = parse_volname($cfg, $volid);
- my $zfspath = "$scfg->{pool}\/$volname";
-
- my @formats = volume_transfer_formats($cfg, $volid, $volid, $snapshot, $base_snapshot, 1);
- die "cannot migrate from storage type '$scfg->{type}' to '$tcfg->{type}'\n" if !@formats;
- my $format = $formats[0];
+ my @formats = volume_transfer_formats($cfg, $volid, $volid, $snapshot, $base_snapshot, $with_snapshots);
+ die "cannot migrate from storage type '$scfg->{type}' to '$tcfg->{type}'\n" if !@formats;
+ my $format = $formats[0];
- my @insecurecmd;
- if ($insecure) {
- @insecurecmd = ('pvecm', 'mtunnel', '-run-command', 1);
- if (my $network = $target_sshinfo->{network}) {
- push @insecurecmd, '-migration_network', $network;
- }
- }
+ my @insecurecmd;
+ if ($insecure) {
+ @insecurecmd = ('pvecm', 'mtunnel', '-run-command', 1);
+ if (my $network = $target_sshinfo->{network}) {
+ push @insecurecmd, '-migration_network', $network;
+ }
+ }
- my $send = ['pvesm', 'export', $volid, $format, '-', '-snapshot', $snapshot, '-with-snapshots', '1'];
- my $recv = [@$ssh, @insecurecmd, '--', 'pvesm', 'import', $volid, $format, '-', '-with-snapshots', '1'];
- if ($migration_snapshot) {
- push @$recv, '-delete-snapshot', $snapshot;
- }
+ $with_snapshots = $with_snapshots ? 1 : 0; # sanitize for passing as cli parameter
+ my $send = ['pvesm', 'export', $volid, $format, '-', '-with-snapshots', $with_snapshots];
+ my $recv = [@$ssh, @insecurecmd, '--', 'pvesm', 'import', $volid, $format, '-', '-with-snapshots', $with_snapshots];
+ if (defined($snapshot)) {
+ push @$send, '-snapshot', $snapshot
+ }
+ if ($migration_snapshot) {
+ push @$recv, '-delete-snapshot', $snapshot;
+ }
- if (defined($base_snapshot)) {
- # Check if the snapshot exists on the remote side:
- push @$send, '-base', $base_snapshot;
- push @$recv, '-base', $base_snapshot;
- }
+ if (defined($base_snapshot)) {
+ # Check if the snapshot exists on the remote side:
+ push @$send, '-base', $base_snapshot;
+ push @$recv, '-base', $base_snapshot;
+ }
- volume_snapshot($cfg, $volid, $snapshot) if $migration_snapshot;
- eval {
- if ($insecure) {
- my $pid = open(my $info, '-|', @$recv)
- or die "receive command failed: $!\n";
- my ($ip) = <$info> =~ /^($PVE::Tools::IPRE)$/ or die "no tunnel IP received\n";
- my ($port) = <$info> =~ /^(\d+)$/ or die "no tunnel port received\n";
- my $socket = IO::Socket::IP->new(PeerHost => $ip, PeerPort => $port, Type => SOCK_STREAM)
- or die "failed to connect to tunnel at $ip:$port\n";
- run_command([$send, @cstream], output => '>&'.fileno($socket));
- } else {
- run_command([$send, @cstream, $recv]);
- }
- };
- my $err = $@;
- warn "send/receive failed, cleaning up snapshot(s)..\n" if $err;
- if ($migration_snapshot) {
- eval { volume_snapshot_delete($cfg, $volid, $snapshot, 0) };
- warn "could not remove source snapshot: $@\n" if $@;
- }
- die $err if $err;
- } else {
- die "$errstr - target type $tcfg->{type} is not valid\n";
- }
-
- } elsif ($scfg->{type} eq 'lvmthin' || $scfg->{type} eq 'lvm') {
- $no_incremental->($scfg->{type});
- $no_snapshot->($scfg->{type});
-
- if (($scfg->{type} eq $tcfg->{type}) &&
- ($tcfg->{type} eq 'lvmthin' || $tcfg->{type} eq 'lvm')) {
-
- my (undef, $volname, $vmid) = parse_volname($cfg, $volid);
- my $size = volume_size_info($cfg, $volid, 5);
- my $src = path($cfg, $volid);
- my $dst = path($cfg, $target_volid);
-
- run_command([@$ssh, '--',
- 'pvesm', 'alloc', $target_storeid, $vmid,
- $target_volname, int($size/1024)]);
-
- eval {
- if ($tcfg->{type} eq 'lvmthin') {
- run_command([["dd", "if=$src", "bs=4k"], @cstream,
- [@$ssh, "dd", 'conv=sparse', "of=$dst", "bs=4k"]]);
- } else {
- run_command([["dd", "if=$src", "bs=4k"], @cstream,
- [@$ssh, "dd", "of=$dst", "bs=4k"]]);
- }
- };
- if (my $err = $@) {
- run_command([@$ssh, 'pvesm', 'free', $target_volid]);
- die $err;
+ volume_snapshot($cfg, $volid, $snapshot) if $migration_snapshot;
+ eval {
+ if ($insecure) {
+ open(my $info, '-|', @$recv)
+ or die "receive command failed: $!\n";
+ my ($ip) = <$info> =~ /^($PVE::Tools::IPRE)$/ or die "no tunnel IP received\n";
+ my ($port) = <$info> =~ /^(\d+)$/ or die "no tunnel port received\n";
+ my $socket = IO::Socket::IP->new(PeerHost => $ip, PeerPort => $port, Type => SOCK_STREAM)
+ or die "failed to connect to tunnel at $ip:$port\n";
+ # we won't be reading from the socket
+ shutdown($socket, 0);
+ run_command([$send, @cstream], output => '>&'.fileno($socket));
+ # don't close the connection entirely otherwise the receiving end
+ # might not get all buffered data (and fails with 'connection reset by peer')
+ shutdown($socket, 1);
+ 1 while <$info>; # wait for the remote process to finish
+ # now close the socket
+ close($socket);
+ if (!close($info)) { # does waitpid()
+ die "import failed: $!\n" if $!;
+ die "import failed: exit code ".($?>>8)."\n";
}
} else {
- die "$errstr - migrate from source type '$scfg->{type}' to '$tcfg->{type}' not implemented\n";
+ run_command([$send, @cstream, $recv], logfunc => $logfunc);
}
- } else {
- die "$errstr - source type '$scfg->{type}' not implemented\n";
+ };
+ my $err = $@;
+ warn "send/receive failed, cleaning up snapshot(s)..\n" if $err;
+ if ($migration_snapshot) {
+ eval { volume_snapshot_delete($cfg, $volid, $snapshot, 0) };
+ warn "could not remove source snapshot: $@\n" if $@;
}
+ die $err if $err;
}
sub vdisk_clone {
}
sub storage_info {
- my ($cfg, $content) = @_;
+ my ($cfg, $content, $includeformat) = @_;
my $ids = $cfg->{ids};
my $slist = [];
foreach my $storeid (keys %$ids) {
-
- next if !storage_check_enabled($cfg, $storeid, undef, 1);
+ my $storage_enabled = defined(storage_check_enabled($cfg, $storeid, undef, 1));
if (defined($content)) {
my $want_ctype = 0;
last;
}
}
- next if !$want_ctype;
+ next if !$want_ctype || !$storage_enabled;
}
my $type = $ids->{$storeid}->{type};
shared => $ids->{$storeid}->{shared} ? 1 : 0,
content => PVE::Storage::Plugin::content_hash_to_string($ids->{$storeid}->{content}),
active => 0,
+ enabled => $storage_enabled ? 1 : 0,
};
push @$slist, $storeid;
foreach my $storeid (keys %$ids) {
my $scfg = $ids->{$storeid};
+
next if !$info->{$storeid};
+ next if !$info->{$storeid}->{enabled};
+
+ my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
+ if ($includeformat) {
+ my $pd = $plugin->plugindata();
+ $info->{$storeid}->{format} = $pd->{format}
+ if $pd->{format};
+ $info->{$storeid}->{select_existing} = $pd->{select_existing}
+ if $pd->{select_existing};
+ }
eval { activate_storage($cfg, $storeid, $cache); };
if (my $err = $@) {
next;
}
- my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
my ($total, $avail, $used, $active);
eval { ($total, $avail, $used, $active) = $plugin->status($storeid, $scfg, $cache); };
warn $@ if $@;
my $scfg = storage_config($cfg, $storeid);
my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
return $plugin->volume_export_formats($scfg, $storeid, $volname,
- $base_snapshot, $with_snapshots);
+ $snapshot, $base_snapshot,
+ $with_snapshots);
}
sub volume_import_formats {
return $res;
}
+# Various io-heavy operations require io/bandwidth limits which can be
+# configured on multiple levels: The global defaults in datacenter.cfg, and
+# per-storage overrides. When we want to do a restore from storage A to storage
+# B, we should take the smaller limit defined for storages A and B, and if no
+# such limit was specified, use the one from datacenter.cfg.
+sub get_bandwidth_limit {
+ my ($operation, $storage_list, $override) = @_;
+
+ # called for each limit (global, per-storage) with the 'default' and the
+ # $operation limit and should udpate $override for every limit affecting
+ # us.
+ my $use_global_limits = 0;
+ my $apply_limit = sub {
+ my ($bwlimit) = @_;
+ if (defined($bwlimit)) {
+ my $limits = PVE::JSONSchema::parse_property_string('bwlimit', $bwlimit);
+ my $limit = $limits->{$operation} // $limits->{default};
+ if (defined($limit)) {
+ if (!$override || $limit < $override) {
+ $override = $limit;
+ }
+ return;
+ }
+ }
+ # If there was no applicable limit, try to apply the global ones.
+ $use_global_limits = 1;
+ };
+
+ my $rpcenv = PVE::RPCEnvironment->get();
+ my $authuser = $rpcenv->get_user();
+
+ # Apply per-storage limits - if there are storages involved.
+ if (@$storage_list) {
+ my $config = config();
+
+ # The Datastore.Allocate permission allows us to modify the per-storage
+ # limits, therefore it also allows us to override them.
+ # Since we have most likely multiple storages to check, do a quick check on
+ # the general '/storage' path to see if we can skip the checks entirely:
+ return $override if $rpcenv->check($authuser, '/storage', ['Datastore.Allocate'], 1);
+
+ my %done;
+ foreach my $storage (@$storage_list) {
+ # Avoid duplicate checks:
+ next if $done{$storage};
+ $done{$storage} = 1;
+
+ # Otherwise we may still have individual /storage/$ID permissions:
+ if (!$rpcenv->check($authuser, "/storage/$storage", ['Datastore.Allocate'], 1)) {
+ # And if not: apply the limits.
+ my $storecfg = storage_config($config, $storage);
+ $apply_limit->($storecfg->{bwlimit});
+ }
+ }
+
+ # Storage limits take precedence over the datacenter defaults, so if
+ # a limit was applied:
+ return $override if !$use_global_limits;
+ }
+
+ # Sys.Modify on '/' means we can change datacenter.cfg which contains the
+ # global default limits.
+ if (!$rpcenv->check($authuser, '/', ['Sys.Modify'], 1)) {
+ # So if we cannot modify global limits, apply them to our currently
+ # requested override.
+ my $dc = cfs_read_file('datacenter.cfg');
+ $apply_limit->($dc->{bwlimit});
+ }
+
+ return $override;
+}
+
1;