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Commit | Line | Data |
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85fda4dd | 1 | package PVE::Storage::ZFSPoolPlugin; |
5bb8e010 DM |
2 | |
3 | use strict; | |
4 | use warnings; | |
e3eb131e | 5 | |
5bb8e010 | 6 | use IO::File; |
e3eb131e | 7 | use Net::IP; |
5bb8e010 | 8 | use POSIX; |
e3eb131e | 9 | |
21430e50 | 10 | use PVE::RPCEnvironment; |
e3eb131e TL |
11 | use PVE::Storage::Plugin; |
12 | use PVE::Tools qw(run_command); | |
5bb8e010 DM |
13 | |
14 | use base qw(PVE::Storage::Plugin); | |
15 | ||
5bb8e010 | 16 | sub type { |
85fda4dd | 17 | return 'zfspool'; |
5bb8e010 DM |
18 | } |
19 | ||
20 | sub plugindata { | |
21 | return { | |
1ccae449 DM |
22 | content => [ {images => 1, rootdir => 1}, {images => 1 , rootdir => 1}], |
23 | format => [ { raw => 1, subvol => 1 } , 'raw' ], | |
5bb8e010 | 24 | }; |
85fda4dd | 25 | } |
5bb8e010 | 26 | |
7730694e DM |
27 | sub properties { |
28 | return { | |
29 | blocksize => { | |
30 | description => "block size", | |
31 | type => 'string', | |
32 | }, | |
33 | sparse => { | |
34 | description => "use sparse volumes", | |
35 | type => 'boolean', | |
36 | }, | |
dcefd9dd FE |
37 | mountpoint => { |
38 | description => "mount point", | |
39 | type => 'string', format => 'pve-storage-path', | |
40 | }, | |
7730694e DM |
41 | }; |
42 | } | |
43 | ||
5bb8e010 DM |
44 | sub options { |
45 | return { | |
7730694e DM |
46 | pool => { fixed => 1 }, |
47 | blocksize => { optional => 1 }, | |
48 | sparse => { optional => 1 }, | |
49 | nodes => { optional => 1 }, | |
5bb8e010 | 50 | disable => { optional => 1 }, |
5bb8e010 | 51 | content => { optional => 1 }, |
9edb99a5 | 52 | bwlimit => { optional => 1 }, |
dcefd9dd | 53 | mountpoint => { optional => 1 }, |
5bb8e010 DM |
54 | }; |
55 | } | |
56 | ||
7730694e DM |
57 | # static zfs helper methods |
58 | ||
7730694e DM |
59 | sub zfs_parse_zvol_list { |
60 | my ($text) = @_; | |
61 | ||
62 | my $list = (); | |
63 | ||
64 | return $list if !$text; | |
65 | ||
66 | my @lines = split /\n/, $text; | |
67 | foreach my $line (@lines) { | |
1ccae449 DM |
68 | my ($dataset, $size, $origin, $type, $refquota) = split(/\s+/, $line); |
69 | next if !($type eq 'volume' || $type eq 'filesystem'); | |
70 | ||
71 | my $zvol = {}; | |
72 | my @parts = split /\//, $dataset; | |
dec97937 | 73 | next if scalar(@parts) < 2; # we need pool/name |
1ccae449 DM |
74 | my $name = pop @parts; |
75 | my $pool = join('/', @parts); | |
76 | ||
851658c3 | 77 | next unless $name =~ m!^(vm|base|subvol|basevol)-(\d+)-(\S+)$!; |
1ccae449 DM |
78 | $zvol->{owner} = $2; |
79 | ||
1ccae449 DM |
80 | $zvol->{pool} = $pool; |
81 | $zvol->{name} = $name; | |
82 | if ($type eq 'filesystem') { | |
83 | if ($refquota eq 'none') { | |
84 | $zvol->{size} = 0; | |
85 | } else { | |
3881e680 | 86 | $zvol->{size} = $refquota + 0; |
7730694e | 87 | } |
1ccae449 DM |
88 | $zvol->{format} = 'subvol'; |
89 | } else { | |
3881e680 | 90 | $zvol->{size} = $size + 0; |
1ccae449 | 91 | $zvol->{format} = 'raw'; |
7730694e | 92 | } |
1ccae449 DM |
93 | if ($origin !~ /^-$/) { |
94 | $zvol->{origin} = $origin; | |
95 | } | |
96 | push @$list, $zvol; | |
7730694e DM |
97 | } |
98 | ||
99 | return $list; | |
100 | } | |
101 | ||
cc80ed9c WL |
102 | sub parse_volname { |
103 | my ($class, $volname) = @_; | |
104 | ||
8e5b96ca DM |
105 | if ($volname =~ m/^(((base|basevol)-(\d+)-\S+)\/)?((base|basevol|vm|subvol)-(\d+)-\S+)$/) { |
106 | my $format = ($6 eq 'subvol' || $6 eq 'basevol') ? 'subvol' : 'raw'; | |
107 | my $isBase = ($6 eq 'base' || $6 eq 'basevol'); | |
108 | return ('images', $5, $7, $2, $4, $isBase, $format); | |
cc80ed9c WL |
109 | } |
110 | ||
111 | die "unable to parse zfs volume name '$volname'\n"; | |
112 | } | |
113 | ||
7730694e DM |
114 | # virtual zfs methods (subclass can overwrite them) |
115 | ||
dcefd9dd FE |
116 | sub on_add_hook { |
117 | my ($class, $storeid, $scfg, %param) = @_; | |
118 | ||
119 | my $cfg_mountpoint = $scfg->{mountpoint}; | |
dcefd9dd FE |
120 | |
121 | # ignore failure, pool might currently not be imported | |
75815bf5 FE |
122 | my $mountpoint; |
123 | eval { | |
124 | my $res = $class->zfs_get_properties($scfg, 'mountpoint', $scfg->{pool}, 1); | |
125 | $mountpoint = PVE::Storage::Plugin::verify_path($res, 1) if defined($res); | |
dcefd9dd FE |
126 | }; |
127 | ||
128 | if (defined($cfg_mountpoint)) { | |
129 | if (defined($mountpoint) && !($cfg_mountpoint =~ m|^\Q$mountpoint\E/?$|)) { | |
130 | warn "warning for $storeid - mountpoint: $cfg_mountpoint " . | |
131 | "does not match current mount point: $mountpoint\n"; | |
132 | } | |
133 | } else { | |
134 | $scfg->{mountpoint} = $mountpoint; | |
135 | } | |
f3ccd0ef FE |
136 | |
137 | return; | |
dcefd9dd FE |
138 | } |
139 | ||
f3e632d0 | 140 | sub path { |
e67069eb | 141 | my ($class, $scfg, $volname, $storeid, $snapname) = @_; |
f3e632d0 WL |
142 | |
143 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
144 | ||
145 | my $path = ''; | |
dcefd9dd | 146 | my $mountpoint = $scfg->{mountpoint} // "/$scfg->{pool}"; |
f3e632d0 | 147 | |
1ccae449 | 148 | if ($vtype eq "images") { |
74b724a6 | 149 | if ($name =~ m/^subvol-/ || $name =~ m/^basevol-/) { |
dcefd9dd | 150 | $path = "$mountpoint/$name"; |
1ccae449 | 151 | } else { |
851658c3 | 152 | $path = "/dev/zvol/$scfg->{pool}/$name"; |
1ccae449 | 153 | } |
f482231e | 154 | $path .= "\@$snapname" if defined($snapname); |
f3e632d0 | 155 | } else { |
85fda4dd | 156 | die "$vtype is not allowed in ZFSPool!"; |
f3e632d0 WL |
157 | } |
158 | ||
159 | return ($path, $vmid, $vtype); | |
160 | } | |
161 | ||
7730694e | 162 | sub zfs_request { |
44257d2e | 163 | my ($class, $scfg, $timeout, $method, @params) = @_; |
7730694e | 164 | |
7730694e DM |
165 | my $cmd = []; |
166 | ||
167 | if ($method eq 'zpool_list') { | |
86d47239 | 168 | push @$cmd, 'zpool', 'list'; |
e2e63801 FG |
169 | } elsif ($method eq 'zpool_import') { |
170 | push @$cmd, 'zpool', 'import'; | |
e9ab8ea3 | 171 | $timeout = 15 if !$timeout || $timeout < 15; |
7730694e DM |
172 | } else { |
173 | push @$cmd, 'zfs', $method; | |
174 | } | |
7730694e | 175 | push @$cmd, @params; |
7730694e | 176 | |
a10695b4 TL |
177 | my $msg = ''; |
178 | my $output = sub { $msg .= "$_[0]\n" }; | |
7730694e | 179 | |
a10695b4 | 180 | $timeout = PVE::RPCEnvironment->is_worker() ? 60*60 : 5 if !$timeout; |
72bdeea1 | 181 | |
1f390a30 | 182 | run_command($cmd, errmsg => "zfs error", outfunc => $output, timeout => $timeout); |
7730694e DM |
183 | |
184 | return $msg; | |
185 | } | |
186 | ||
56362cfb FG |
187 | sub zfs_wait_for_zvol_link { |
188 | my ($class, $scfg, $volname, $timeout) = @_; | |
189 | ||
190 | my $default_timeout = PVE::RPCEnvironment->is_worker() ? 60*5 : 10; | |
191 | $timeout = $default_timeout if !defined($timeout); | |
192 | ||
193 | my ($devname, undef, undef) = $class->path($scfg, $volname); | |
194 | ||
195 | for (my $i = 1; $i <= $timeout; $i++) { | |
196 | last if -b $devname; | |
197 | die "timeout: no zvol device link for '$volname' found after $timeout sec found.\n" | |
198 | if $i == $timeout; | |
199 | ||
200 | sleep(1); | |
201 | } | |
202 | } | |
203 | ||
b3ba95e4 WL |
204 | sub alloc_image { |
205 | my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_; | |
206 | ||
1ccae449 | 207 | my $volname = $name; |
3824ba88 | 208 | |
1ccae449 | 209 | if ($fmt eq 'raw') { |
b3ba95e4 | 210 | |
fc05c9a0 | 211 | die "illegal name '$volname' - should be 'vm-$vmid-*'\n" |
1ccae449 | 212 | if $volname && $volname !~ m/^vm-$vmid-/; |
a44c0147 | 213 | $volname = $class->find_free_diskname($storeid, $scfg, $vmid, $fmt) |
1ccae449 | 214 | if !$volname; |
b3ba95e4 | 215 | |
1ccae449 | 216 | $class->zfs_create_zvol($scfg, $volname, $size); |
56362cfb | 217 | $class->zfs_wait_for_zvol_link($scfg, $volname); |
82e08809 | 218 | |
1ccae449 | 219 | } elsif ( $fmt eq 'subvol') { |
55525ad2 | 220 | |
fc05c9a0 | 221 | die "illegal name '$volname' - should be 'subvol-$vmid-*'\n" |
55525ad2 | 222 | if $volname && $volname !~ m/^subvol-$vmid-/; |
a44c0147 | 223 | $volname = $class->find_free_diskname($storeid, $scfg, $vmid, $fmt) |
55525ad2 DM |
224 | if !$volname; |
225 | ||
fc05c9a0 | 226 | die "illegal name '$volname' - should be 'subvol-$vmid-*'\n" |
1ccae449 | 227 | if $volname !~ m/^subvol-$vmid-/; |
76fd7dc7 | 228 | |
3824ba88 FE |
229 | $class->zfs_create_subvol($scfg, $volname, $size); |
230 | ||
1ccae449 DM |
231 | } else { |
232 | die "unsupported format '$fmt'"; | |
233 | } | |
b3ba95e4 | 234 | |
82e08809 | 235 | return $volname; |
b3ba95e4 WL |
236 | } |
237 | ||
e9565df5 WL |
238 | sub free_image { |
239 | my ($class, $storeid, $scfg, $volname, $isBase) = @_; | |
240 | ||
241 | my (undef, $name, undef) = $class->parse_volname($volname); | |
242 | ||
243 | $class->zfs_delete_zvol($scfg, $name); | |
244 | ||
245 | return undef; | |
246 | } | |
247 | ||
ca04180f WL |
248 | sub list_images { |
249 | my ($class, $storeid, $scfg, $vmid, $vollist, $cache) = @_; | |
250 | ||
251 | $cache->{zfs} = $class->zfs_list_zvol($scfg) if !$cache->{zfs}; | |
252 | my $zfspool = $scfg->{pool}; | |
253 | my $res = []; | |
254 | ||
255 | if (my $dat = $cache->{zfs}->{$zfspool}) { | |
256 | ||
257 | foreach my $image (keys %$dat) { | |
258 | ||
1b83c3d9 | 259 | my $info = $dat->{$image}; |
ca04180f | 260 | |
1b83c3d9 FG |
261 | my $volname = $info->{name}; |
262 | my $parent = $info->{parent}; | |
263 | my $owner = $info->{vmid}; | |
264 | ||
265 | if ($parent && $parent =~ m/^(\S+)\@__base__$/) { | |
ca04180f | 266 | my ($basename) = ($1); |
1b83c3d9 | 267 | $info->{volid} = "$storeid:$basename/$volname"; |
ca04180f | 268 | } else { |
1b83c3d9 | 269 | $info->{volid} = "$storeid:$volname"; |
ca04180f WL |
270 | } |
271 | ||
ca04180f | 272 | if ($vollist) { |
1b83c3d9 | 273 | my $found = grep { $_ eq $info->{volid} } @$vollist; |
ca04180f WL |
274 | next if !$found; |
275 | } else { | |
276 | next if defined ($vmid) && ($owner ne $vmid); | |
277 | } | |
278 | ||
ca04180f WL |
279 | push @$res, $info; |
280 | } | |
281 | } | |
ca04180f WL |
282 | return $res; |
283 | } | |
284 | ||
4966c886 FE |
285 | sub zfs_get_properties { |
286 | my ($class, $scfg, $properties, $dataset, $timeout) = @_; | |
287 | ||
288 | my $result = $class->zfs_request($scfg, $timeout, 'get', '-o', 'value', | |
289 | '-Hp', $properties, $dataset); | |
290 | my @values = split /\n/, $result; | |
291 | return wantarray ? @values : $values[0]; | |
292 | } | |
293 | ||
7730694e DM |
294 | sub zfs_get_pool_stats { |
295 | my ($class, $scfg) = @_; | |
296 | ||
297 | my $available = 0; | |
298 | my $used = 0; | |
299 | ||
4966c886 | 300 | my @lines = $class->zfs_get_properties($scfg, 'available,used', $scfg->{pool}); |
7730694e DM |
301 | |
302 | if($lines[0] =~ /^(\d+)$/) { | |
303 | $available = $1; | |
304 | } | |
305 | ||
306 | if($lines[1] =~ /^(\d+)$/) { | |
307 | $used = $1; | |
308 | } | |
309 | ||
310 | return ($available, $used); | |
311 | } | |
312 | ||
7730694e DM |
313 | sub zfs_create_zvol { |
314 | my ($class, $scfg, $zvol, $size) = @_; | |
cdef3abb ML |
315 | |
316 | # always align size to 1M as workaround until | |
317 | # https://github.com/zfsonlinux/zfs/issues/8541 is solved | |
318 | my $padding = (1024 - $size % 1024) % 1024; | |
319 | $size = $size + $padding; | |
320 | ||
7730694e DM |
321 | my $cmd = ['create']; |
322 | ||
323 | push @$cmd, '-s' if $scfg->{sparse}; | |
324 | ||
325 | push @$cmd, '-b', $scfg->{blocksize} if $scfg->{blocksize}; | |
326 | ||
327 | push @$cmd, '-V', "${size}k", "$scfg->{pool}/$zvol"; | |
328 | ||
44257d2e | 329 | $class->zfs_request($scfg, undef, @$cmd); |
7730694e DM |
330 | } |
331 | ||
1ccae449 DM |
332 | sub zfs_create_subvol { |
333 | my ($class, $scfg, $volname, $size) = @_; | |
334 | ||
335 | my $dataset = "$scfg->{pool}/$volname"; | |
3824ba88 | 336 | |
efaf4017 DM |
337 | my $cmd = ['create', '-o', 'acltype=posixacl', '-o', 'xattr=sa', |
338 | '-o', "refquota=${size}k", $dataset]; | |
1ccae449 | 339 | |
44257d2e | 340 | $class->zfs_request($scfg, undef, @$cmd); |
1ccae449 DM |
341 | } |
342 | ||
7730694e DM |
343 | sub zfs_delete_zvol { |
344 | my ($class, $scfg, $zvol) = @_; | |
345 | ||
1f390a30 WL |
346 | my $err; |
347 | ||
348 | for (my $i = 0; $i < 6; $i++) { | |
349 | ||
44257d2e | 350 | eval { $class->zfs_request($scfg, undef, 'destroy', '-r', "$scfg->{pool}/$zvol"); }; |
1f390a30 WL |
351 | if ($err = $@) { |
352 | if ($err =~ m/^zfs error:(.*): dataset is busy.*/) { | |
353 | sleep(1); | |
27ff0e99 WL |
354 | } elsif ($err =~ m/^zfs error:.*: dataset does not exist.*$/) { |
355 | $err = undef; | |
356 | last; | |
1f390a30 WL |
357 | } else { |
358 | die $err; | |
359 | } | |
360 | } else { | |
361 | last; | |
362 | } | |
363 | } | |
364 | ||
365 | die $err if $err; | |
7730694e DM |
366 | } |
367 | ||
368 | sub zfs_list_zvol { | |
369 | my ($class, $scfg) = @_; | |
370 | ||
d99de0f8 | 371 | my $text = $class->zfs_request($scfg, 10, 'list', '-o', 'name,volsize,origin,type,refquota', '-t', 'volume,filesystem', '-Hrp'); |
7730694e DM |
372 | my $zvols = zfs_parse_zvol_list($text); |
373 | return undef if !$zvols; | |
374 | ||
375 | my $list = (); | |
376 | foreach my $zvol (@$zvols) { | |
1ccae449 DM |
377 | my $pool = $zvol->{pool}; |
378 | my $name = $zvol->{name}; | |
7730694e DM |
379 | my $parent = $zvol->{origin}; |
380 | if($zvol->{origin} && $zvol->{origin} =~ m/^$scfg->{pool}\/(\S+)$/){ | |
381 | $parent = $1; | |
382 | } | |
383 | ||
1ccae449 DM |
384 | $list->{$pool}->{$name} = { |
385 | name => $name, | |
7730694e DM |
386 | size => $zvol->{size}, |
387 | parent => $parent, | |
1ccae449 DM |
388 | format => $zvol->{format}, |
389 | vmid => $zvol->{owner}, | |
7730694e DM |
390 | }; |
391 | } | |
392 | ||
393 | return $list; | |
394 | } | |
395 | ||
2fc59177 DM |
396 | sub zfs_get_latest_snapshot { |
397 | my ($class, $scfg, $volname) = @_; | |
398 | ||
851658c3 WL |
399 | my $vname = ($class->parse_volname($volname))[1]; |
400 | ||
2fc59177 DM |
401 | # abort rollback if snapshot is not the latest |
402 | my @params = ('-t', 'snapshot', '-o', 'name', '-s', 'creation'); | |
44257d2e | 403 | my $text = $class->zfs_request($scfg, undef, 'list', @params); |
2fc59177 DM |
404 | my @snapshots = split(/\n/, $text); |
405 | ||
406 | my $recentsnap; | |
407 | foreach (@snapshots) { | |
851658c3 | 408 | if (/$scfg->{pool}\/$vname/) { |
2fc59177 DM |
409 | s/^.*@//; |
410 | $recentsnap = $_; | |
411 | } | |
412 | } | |
413 | ||
414 | return $recentsnap; | |
415 | } | |
416 | ||
b5e5f7e3 DM |
417 | sub status { |
418 | my ($class, $storeid, $scfg, $cache) = @_; | |
419 | ||
420 | my $total = 0; | |
421 | my $free = 0; | |
422 | my $used = 0; | |
423 | my $active = 0; | |
424 | ||
425 | eval { | |
426 | ($free, $used) = $class->zfs_get_pool_stats($scfg); | |
427 | $active = 1; | |
428 | $total = $free + $used; | |
429 | }; | |
430 | warn $@ if $@; | |
431 | ||
432 | return ($total, $free, $used, $active); | |
433 | } | |
434 | ||
435 | sub volume_size_info { | |
436 | my ($class, $scfg, $storeid, $volname, $timeout) = @_; | |
437 | ||
851658c3 | 438 | my (undef, $vname, undef, undef, undef, undef, $format) = |
79f2b938 DM |
439 | $class->parse_volname($volname); |
440 | ||
441 | my $attr = $format eq 'subvol' ? 'refquota' : 'volsize'; | |
4966c886 FE |
442 | my $value = $class->zfs_get_properties($scfg, $attr, "$scfg->{pool}/$vname"); |
443 | if ($value =~ /^(\d+)$/) { | |
79f2b938 DM |
444 | return $1; |
445 | } | |
446 | ||
447 | die "Could not get zfs volume size\n"; | |
b5e5f7e3 DM |
448 | } |
449 | ||
450 | sub volume_snapshot { | |
f5640e7d | 451 | my ($class, $scfg, $storeid, $volname, $snap) = @_; |
b5e5f7e3 | 452 | |
851658c3 WL |
453 | my $vname = ($class->parse_volname($volname))[1]; |
454 | ||
44257d2e | 455 | $class->zfs_request($scfg, undef, 'snapshot', "$scfg->{pool}/$vname\@$snap"); |
b5e5f7e3 DM |
456 | } |
457 | ||
458 | sub volume_snapshot_delete { | |
459 | my ($class, $scfg, $storeid, $volname, $snap, $running) = @_; | |
460 | ||
851658c3 WL |
461 | my $vname = ($class->parse_volname($volname))[1]; |
462 | ||
463 | $class->deactivate_volume($storeid, $scfg, $vname, $snap, {}); | |
44257d2e | 464 | $class->zfs_request($scfg, undef, 'destroy', "$scfg->{pool}/$vname\@$snap"); |
b5e5f7e3 DM |
465 | } |
466 | ||
2b40ffae WL |
467 | sub volume_snapshot_rollback { |
468 | my ($class, $scfg, $storeid, $volname, $snap) = @_; | |
469 | ||
26a8f21a DC |
470 | my (undef, $vname, undef, undef, undef, undef, $format) = $class->parse_volname($volname); |
471 | ||
472 | my $msg = $class->zfs_request($scfg, undef, 'rollback', "$scfg->{pool}/$vname\@$snap"); | |
851658c3 | 473 | |
26a8f21a DC |
474 | # we have to unmount rollbacked subvols, to invalidate wrong kernel |
475 | # caches, they get mounted in activate volume again | |
476 | # see zfs bug #10931 https://github.com/openzfs/zfs/issues/10931 | |
477 | if ($format eq 'subvol') { | |
478 | $class->zfs_request($scfg, undef, 'unmount', "$scfg->{pool}/$vname"); | |
479 | } | |
480 | ||
481 | return $msg; | |
1597f1f9 WL |
482 | } |
483 | ||
484 | sub volume_rollback_is_possible { | |
3824ba88 FE |
485 | my ($class, $scfg, $storeid, $volname, $snap) = @_; |
486 | ||
2fc59177 | 487 | my $recentsnap = $class->zfs_get_latest_snapshot($scfg, $volname); |
c8eb0178 FG |
488 | |
489 | die "can't rollback, no snapshots exist at all\n" | |
490 | if !defined($recentsnap); | |
491 | ||
d0eaf185 FG |
492 | die "can't rollback, '$snap' is not most recent snapshot\n" |
493 | if $snap ne $recentsnap; | |
2b40ffae | 494 | |
3824ba88 | 495 | return 1; |
2b40ffae WL |
496 | } |
497 | ||
aefe82ea | 498 | sub volume_snapshot_list { |
8b622c2d | 499 | my ($class, $scfg, $storeid, $volname) = @_; |
aefe82ea WL |
500 | |
501 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
502 | ||
503 | my $zpath = "$scfg->{pool}/$name"; | |
504 | ||
aefe82ea WL |
505 | my $snaps = []; |
506 | ||
507 | my $cmd = ['zfs', 'list', '-r', '-H', '-S', 'name', '-t', 'snap', '-o', | |
508 | 'name', $zpath]; | |
509 | ||
aefe82ea WL |
510 | my $outfunc = sub { |
511 | my $line = shift; | |
512 | ||
8b622c2d | 513 | if ($line =~ m/^\Q$zpath\E@(.*)$/) { |
aefe82ea WL |
514 | push @$snaps, $1; |
515 | } | |
516 | }; | |
517 | ||
518 | eval { run_command( [$cmd], outfunc => $outfunc , errfunc => sub{}); }; | |
519 | ||
520 | # return an empty array if dataset does not exist. | |
521 | return $snaps; | |
522 | } | |
523 | ||
0a3d992f DM |
524 | sub activate_storage { |
525 | my ($class, $storeid, $scfg, $cache) = @_; | |
86d47239 | 526 | |
93124ef4 DM |
527 | # Note: $scfg->{pool} can include dataset <pool>/<dataset> |
528 | my $pool = $scfg->{pool}; | |
529 | $pool =~ s!/.*$!!; | |
530 | ||
b5c8278a | 531 | my $pool_imported = sub { |
a2d747a1 | 532 | my @param = ('-o', 'name', '-H', $pool); |
b5c8278a | 533 | my $res = eval { $class->zfs_request($scfg, undef, 'zpool_list', @param) }; |
a2d747a1 SI |
534 | warn "$@\n" if $@; |
535 | ||
b5c8278a TL |
536 | return defined($res) && $res =~ m/$pool/; |
537 | }; | |
538 | ||
539 | if (!$pool_imported->()) { | |
540 | # import can only be done if not yet imported! | |
a2d747a1 | 541 | my @param = ('-d', '/dev/disk/by-id/', '-o', 'cachefile=none', $pool); |
b5c8278a TL |
542 | eval { $class->zfs_request($scfg, undef, 'zpool_import', @param) }; |
543 | if (my $err = $@) { | |
544 | # just could've raced with another import, so recheck if it is imported | |
a2d747a1 | 545 | die "could not activate storage '$storeid', $err\n" if !$pool_imported->(); |
dc18abe0 | 546 | } |
86d47239 | 547 | } |
0a3d992f DM |
548 | return 1; |
549 | } | |
550 | ||
551 | sub deactivate_storage { | |
552 | my ($class, $storeid, $scfg, $cache) = @_; | |
553 | return 1; | |
554 | } | |
555 | ||
d4c63dc1 | 556 | sub activate_volume { |
02e797b8 | 557 | my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_; |
56362cfb FG |
558 | |
559 | return 1 if defined($snapname); | |
560 | ||
3893d275 | 561 | my (undef, $dataset, undef, undef, undef, undef, $format) = $class->parse_volname($volname); |
56362cfb | 562 | |
815df2dd FE |
563 | if ($format eq 'raw') { |
564 | $class->zfs_wait_for_zvol_link($scfg, $volname); | |
565 | } elsif ($format eq 'subvol') { | |
3893d275 | 566 | my $mounted = $class->zfs_get_properties($scfg, 'mounted', "$scfg->{pool}/$dataset"); |
815df2dd | 567 | if ($mounted !~ m/^yes$/) { |
3893d275 | 568 | $class->zfs_request($scfg, undef, 'mount', "$scfg->{pool}/$dataset"); |
815df2dd FE |
569 | } |
570 | } | |
56362cfb | 571 | |
d4c63dc1 WL |
572 | return 1; |
573 | } | |
574 | ||
575 | sub deactivate_volume { | |
02e797b8 | 576 | my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_; |
d4c63dc1 WL |
577 | return 1; |
578 | } | |
5bb8e010 | 579 | |
d3a282e8 WL |
580 | sub clone_image { |
581 | my ($class, $scfg, $storeid, $volname, $vmid, $snap) = @_; | |
582 | ||
583 | $snap ||= '__base__'; | |
584 | ||
55525ad2 | 585 | my ($vtype, $basename, $basevmid, undef, undef, $isBase, $format) = |
d3a282e8 WL |
586 | $class->parse_volname($volname); |
587 | ||
588 | die "clone_image only works on base images\n" if !$isBase; | |
589 | ||
a44c0147 | 590 | my $name = $class->find_free_diskname($storeid, $scfg, $vmid, $format); |
d3a282e8 | 591 | |
851658c3 | 592 | if ($format eq 'subvol') { |
e05113fb | 593 | my $size = $class->zfs_request($scfg, undef, 'list', '-Hp', '-o', 'refquota', "$scfg->{pool}/$basename"); |
851658c3 | 594 | chomp($size); |
44257d2e | 595 | $class->zfs_request($scfg, undef, 'clone', "$scfg->{pool}/$basename\@$snap", "$scfg->{pool}/$name", '-o', "refquota=$size"); |
851658c3 | 596 | } else { |
44257d2e | 597 | $class->zfs_request($scfg, undef, 'clone', "$scfg->{pool}/$basename\@$snap", "$scfg->{pool}/$name"); |
851658c3 | 598 | } |
d3a282e8 | 599 | |
851658c3 | 600 | return "$basename/$name"; |
d3a282e8 WL |
601 | } |
602 | ||
603 | sub create_base { | |
604 | my ($class, $storeid, $scfg, $volname) = @_; | |
605 | ||
606 | my $snap = '__base__'; | |
607 | ||
851658c3 | 608 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase, $format) = |
d3a282e8 WL |
609 | $class->parse_volname($volname); |
610 | ||
611 | die "create_base not possible with base image\n" if $isBase; | |
612 | ||
613 | my $newname = $name; | |
851658c3 WL |
614 | if ( $format eq 'subvol' ) { |
615 | $newname =~ s/^subvol-/basevol-/; | |
616 | } else { | |
617 | $newname =~ s/^vm-/base-/; | |
618 | } | |
d3a282e8 WL |
619 | my $newvolname = $basename ? "$basename/$newname" : "$newname"; |
620 | ||
44257d2e | 621 | $class->zfs_request($scfg, undef, 'rename', "$scfg->{pool}/$name", "$scfg->{pool}/$newname"); |
d3a282e8 WL |
622 | |
623 | my $running = undef; #fixme : is create_base always offline ? | |
624 | ||
625 | $class->volume_snapshot($scfg, $storeid, $newname, $snap, $running); | |
626 | ||
627 | return $newvolname; | |
628 | } | |
629 | ||
a4034b9f WL |
630 | sub volume_resize { |
631 | my ($class, $scfg, $storeid, $volname, $size, $running) = @_; | |
632 | ||
79f2b938 DM |
633 | my $new_size = int($size/1024); |
634 | ||
851658c3 | 635 | my (undef, $vname, undef, undef, undef, undef, $format) = |
79f2b938 DM |
636 | $class->parse_volname($volname); |
637 | ||
638 | my $attr = $format eq 'subvol' ? 'refquota' : 'volsize'; | |
a4034b9f | 639 | |
d3e3e5d6 FE |
640 | # align size to 1M so we always have a valid multiple of the volume block size |
641 | if ($format eq 'raw') { | |
642 | my $padding = (1024 - $new_size % 1024) % 1024; | |
643 | $new_size = $new_size + $padding; | |
644 | } | |
645 | ||
44257d2e | 646 | $class->zfs_request($scfg, undef, 'set', "$attr=${new_size}k", "$scfg->{pool}/$vname"); |
a4034b9f WL |
647 | |
648 | return $new_size; | |
649 | } | |
650 | ||
7118dd91 DM |
651 | sub storage_can_replicate { |
652 | my ($class, $scfg, $storeid, $format) = @_; | |
653 | ||
654 | return 1 if $format eq 'raw' || $format eq 'subvol'; | |
655 | ||
656 | return 0; | |
657 | } | |
658 | ||
2b40ffae WL |
659 | sub volume_has_feature { |
660 | my ($class, $scfg, $feature, $storeid, $volname, $snapname, $running) = @_; | |
661 | ||
662 | my $features = { | |
663 | snapshot => { current => 1, snap => 1}, | |
664 | clone => { base => 1}, | |
665 | template => { current => 1}, | |
666 | copy => { base => 1, current => 1}, | |
baafddbd | 667 | sparseinit => { base => 1, current => 1}, |
f189504c | 668 | replicate => { base => 1, current => 1}, |
2b40ffae WL |
669 | }; |
670 | ||
671 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) = | |
672 | $class->parse_volname($volname); | |
673 | ||
674 | my $key = undef; | |
675 | ||
676 | if ($snapname) { | |
677 | $key = 'snap'; | |
678 | } else { | |
679 | $key = $isBase ? 'base' : 'current'; | |
680 | } | |
681 | ||
682 | return 1 if $features->{$feature}->{$key}; | |
683 | ||
684 | return undef; | |
685 | } | |
686 | ||
47f37b53 WB |
687 | sub volume_export { |
688 | my ($class, $scfg, $storeid, $fh, $volname, $format, $snapshot, $base_snapshot, $with_snapshots) = @_; | |
689 | ||
690 | die "unsupported export stream format for $class: $format\n" | |
691 | if $format ne 'zfs'; | |
692 | ||
693 | die "$class storage can only export snapshots\n" | |
694 | if !defined($snapshot); | |
695 | ||
9a75947b WL |
696 | my $dataset = ($class->parse_volname($volname))[1]; |
697 | ||
47f37b53 WB |
698 | my $fd = fileno($fh); |
699 | die "internal error: invalid file handle for volume_export\n" | |
700 | if !defined($fd); | |
701 | $fd = ">&$fd"; | |
702 | ||
703 | # For zfs we always create a replication stream (-R) which means the remote | |
704 | # side will always delete non-existing source snapshots. This should work | |
705 | # for all our use cases. | |
706 | my $cmd = ['zfs', 'send', '-Rpv']; | |
707 | if (defined($base_snapshot)) { | |
708 | my $arg = $with_snapshots ? '-I' : '-i'; | |
709 | push @$cmd, $arg, $base_snapshot; | |
710 | } | |
9a75947b | 711 | push @$cmd, '--', "$scfg->{pool}/$dataset\@$snapshot"; |
47f37b53 WB |
712 | |
713 | run_command($cmd, output => $fd); | |
714 | ||
715 | return; | |
716 | } | |
717 | ||
d390328b WB |
718 | sub volume_export_formats { |
719 | my ($class, $scfg, $storeid, $volname, $snapshot, $base_snapshot, $with_snapshots) = @_; | |
720 | ||
721 | my @formats = ('zfs'); | |
722 | # TODOs: | |
723 | # push @formats, 'fies' if $volname !~ /^(?:basevol|subvol)-/; | |
724 | # push @formats, 'raw' if !$base_snapshot && !$with_snapshots; | |
725 | return @formats; | |
726 | } | |
727 | ||
47f37b53 | 728 | sub volume_import { |
a97d3ee4 | 729 | my ($class, $scfg, $storeid, $fh, $volname, $format, $base_snapshot, $with_snapshots, $allow_rename) = @_; |
47f37b53 WB |
730 | |
731 | die "unsupported import stream format for $class: $format\n" | |
732 | if $format ne 'zfs'; | |
733 | ||
734 | my $fd = fileno($fh); | |
735 | die "internal error: invalid file handle for volume_import\n" | |
736 | if !defined($fd); | |
737 | ||
a97d3ee4 | 738 | my (undef, $dataset, $vmid) = $class->parse_volname($volname); |
9a75947b | 739 | my $zfspath = "$scfg->{pool}/$dataset"; |
47f37b53 WB |
740 | my $suffix = defined($base_snapshot) ? "\@$base_snapshot" : ''; |
741 | my $exists = 0 == run_command(['zfs', 'get', '-H', 'name', $zfspath.$suffix], | |
0fd0a627 | 742 | noerr => 1, quiet => 1); |
47f37b53 WB |
743 | if (defined($base_snapshot)) { |
744 | die "base snapshot '$zfspath\@$base_snapshot' doesn't exist\n" if !$exists; | |
a97d3ee4 FE |
745 | } elsif ($exists) { |
746 | die "volume '$zfspath' already exists\n" if !$allow_rename; | |
747 | warn "volume '$zfspath' already exists - importing with a different name\n"; | |
748 | $dataset = $class->find_free_diskname($storeid, $scfg, $vmid, $format); | |
749 | $zfspath = "$scfg->{pool}/$dataset"; | |
47f37b53 WB |
750 | } |
751 | ||
752 | eval { run_command(['zfs', 'recv', '-F', '--', $zfspath], input => "<&$fd") }; | |
753 | if (my $err = $@) { | |
754 | if (defined($base_snapshot)) { | |
755 | eval { run_command(['zfs', 'rollback', '-r', '--', "$zfspath\@$base_snapshot"]) }; | |
756 | } else { | |
757 | eval { run_command(['zfs', 'destroy', '-r', '--', $zfspath]) }; | |
758 | } | |
759 | die $err; | |
760 | } | |
761 | ||
a97d3ee4 | 762 | return "$storeid:$dataset"; |
47f37b53 WB |
763 | } |
764 | ||
d390328b WB |
765 | sub volume_import_formats { |
766 | my ($class, $scfg, $storeid, $volname, $base_snapshot, $with_snapshots) = @_; | |
767 | ||
768 | return $class->volume_export_formats($scfg, $storeid, $volname, undef, $base_snapshot, $with_snapshots); | |
769 | } | |
770 | ||
5bb8e010 | 771 | 1; |