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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 | |
56a7637a | 10 | use PVE::ProcFSTools; |
21430e50 | 11 | use PVE::RPCEnvironment; |
e3eb131e TL |
12 | use PVE::Storage::Plugin; |
13 | use PVE::Tools qw(run_command); | |
5bb8e010 DM |
14 | |
15 | use base qw(PVE::Storage::Plugin); | |
16 | ||
5bb8e010 | 17 | sub type { |
85fda4dd | 18 | return 'zfspool'; |
5bb8e010 DM |
19 | } |
20 | ||
21 | sub plugindata { | |
22 | return { | |
1ccae449 DM |
23 | content => [ {images => 1, rootdir => 1}, {images => 1 , rootdir => 1}], |
24 | format => [ { raw => 1, subvol => 1 } , 'raw' ], | |
5bb8e010 | 25 | }; |
85fda4dd | 26 | } |
5bb8e010 | 27 | |
7730694e DM |
28 | sub properties { |
29 | return { | |
30 | blocksize => { | |
31 | description => "block size", | |
32 | type => 'string', | |
33 | }, | |
34 | sparse => { | |
35 | description => "use sparse volumes", | |
36 | type => 'boolean', | |
37 | }, | |
dcefd9dd FE |
38 | mountpoint => { |
39 | description => "mount point", | |
40 | type => 'string', format => 'pve-storage-path', | |
41 | }, | |
7730694e DM |
42 | }; |
43 | } | |
44 | ||
5bb8e010 DM |
45 | sub options { |
46 | return { | |
7730694e DM |
47 | pool => { fixed => 1 }, |
48 | blocksize => { optional => 1 }, | |
49 | sparse => { optional => 1 }, | |
50 | nodes => { optional => 1 }, | |
5bb8e010 | 51 | disable => { optional => 1 }, |
5bb8e010 | 52 | content => { optional => 1 }, |
9edb99a5 | 53 | bwlimit => { optional => 1 }, |
dcefd9dd | 54 | mountpoint => { optional => 1 }, |
5bb8e010 DM |
55 | }; |
56 | } | |
57 | ||
7730694e DM |
58 | # static zfs helper methods |
59 | ||
7730694e DM |
60 | sub zfs_parse_zvol_list { |
61 | my ($text) = @_; | |
62 | ||
63 | my $list = (); | |
64 | ||
65 | return $list if !$text; | |
66 | ||
67 | my @lines = split /\n/, $text; | |
68 | foreach my $line (@lines) { | |
1ccae449 DM |
69 | my ($dataset, $size, $origin, $type, $refquota) = split(/\s+/, $line); |
70 | next if !($type eq 'volume' || $type eq 'filesystem'); | |
71 | ||
72 | my $zvol = {}; | |
73 | my @parts = split /\//, $dataset; | |
dec97937 | 74 | next if scalar(@parts) < 2; # we need pool/name |
1ccae449 DM |
75 | my $name = pop @parts; |
76 | my $pool = join('/', @parts); | |
77 | ||
851658c3 | 78 | next unless $name =~ m!^(vm|base|subvol|basevol)-(\d+)-(\S+)$!; |
1ccae449 DM |
79 | $zvol->{owner} = $2; |
80 | ||
1ccae449 DM |
81 | $zvol->{pool} = $pool; |
82 | $zvol->{name} = $name; | |
83 | if ($type eq 'filesystem') { | |
84 | if ($refquota eq 'none') { | |
85 | $zvol->{size} = 0; | |
86 | } else { | |
3881e680 | 87 | $zvol->{size} = $refquota + 0; |
7730694e | 88 | } |
1ccae449 DM |
89 | $zvol->{format} = 'subvol'; |
90 | } else { | |
3881e680 | 91 | $zvol->{size} = $size + 0; |
1ccae449 | 92 | $zvol->{format} = 'raw'; |
7730694e | 93 | } |
1ccae449 DM |
94 | if ($origin !~ /^-$/) { |
95 | $zvol->{origin} = $origin; | |
96 | } | |
97 | push @$list, $zvol; | |
7730694e DM |
98 | } |
99 | ||
100 | return $list; | |
101 | } | |
102 | ||
cc80ed9c WL |
103 | sub parse_volname { |
104 | my ($class, $volname) = @_; | |
105 | ||
8e5b96ca DM |
106 | if ($volname =~ m/^(((base|basevol)-(\d+)-\S+)\/)?((base|basevol|vm|subvol)-(\d+)-\S+)$/) { |
107 | my $format = ($6 eq 'subvol' || $6 eq 'basevol') ? 'subvol' : 'raw'; | |
108 | my $isBase = ($6 eq 'base' || $6 eq 'basevol'); | |
109 | return ('images', $5, $7, $2, $4, $isBase, $format); | |
cc80ed9c WL |
110 | } |
111 | ||
112 | die "unable to parse zfs volume name '$volname'\n"; | |
113 | } | |
114 | ||
7730694e DM |
115 | # virtual zfs methods (subclass can overwrite them) |
116 | ||
dcefd9dd FE |
117 | sub on_add_hook { |
118 | my ($class, $storeid, $scfg, %param) = @_; | |
119 | ||
120 | my $cfg_mountpoint = $scfg->{mountpoint}; | |
dcefd9dd FE |
121 | |
122 | # ignore failure, pool might currently not be imported | |
75815bf5 FE |
123 | my $mountpoint; |
124 | eval { | |
125 | my $res = $class->zfs_get_properties($scfg, 'mountpoint', $scfg->{pool}, 1); | |
126 | $mountpoint = PVE::Storage::Plugin::verify_path($res, 1) if defined($res); | |
dcefd9dd FE |
127 | }; |
128 | ||
129 | if (defined($cfg_mountpoint)) { | |
130 | if (defined($mountpoint) && !($cfg_mountpoint =~ m|^\Q$mountpoint\E/?$|)) { | |
131 | warn "warning for $storeid - mountpoint: $cfg_mountpoint " . | |
132 | "does not match current mount point: $mountpoint\n"; | |
133 | } | |
134 | } else { | |
135 | $scfg->{mountpoint} = $mountpoint; | |
136 | } | |
f3ccd0ef FE |
137 | |
138 | return; | |
dcefd9dd FE |
139 | } |
140 | ||
f3e632d0 | 141 | sub path { |
e67069eb | 142 | my ($class, $scfg, $volname, $storeid, $snapname) = @_; |
f3e632d0 WL |
143 | |
144 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
145 | ||
146 | my $path = ''; | |
dcefd9dd | 147 | my $mountpoint = $scfg->{mountpoint} // "/$scfg->{pool}"; |
f3e632d0 | 148 | |
1ccae449 | 149 | if ($vtype eq "images") { |
74b724a6 | 150 | if ($name =~ m/^subvol-/ || $name =~ m/^basevol-/) { |
dcefd9dd | 151 | $path = "$mountpoint/$name"; |
1ccae449 | 152 | } else { |
851658c3 | 153 | $path = "/dev/zvol/$scfg->{pool}/$name"; |
1ccae449 | 154 | } |
f482231e | 155 | $path .= "\@$snapname" if defined($snapname); |
f3e632d0 | 156 | } else { |
85fda4dd | 157 | die "$vtype is not allowed in ZFSPool!"; |
f3e632d0 WL |
158 | } |
159 | ||
160 | return ($path, $vmid, $vtype); | |
161 | } | |
162 | ||
7730694e | 163 | sub zfs_request { |
44257d2e | 164 | my ($class, $scfg, $timeout, $method, @params) = @_; |
7730694e | 165 | |
7730694e DM |
166 | my $cmd = []; |
167 | ||
168 | if ($method eq 'zpool_list') { | |
86d47239 | 169 | push @$cmd, 'zpool', 'list'; |
e2e63801 FG |
170 | } elsif ($method eq 'zpool_import') { |
171 | push @$cmd, 'zpool', 'import'; | |
e9ab8ea3 | 172 | $timeout = 15 if !$timeout || $timeout < 15; |
7730694e DM |
173 | } else { |
174 | push @$cmd, 'zfs', $method; | |
175 | } | |
7730694e | 176 | push @$cmd, @params; |
7730694e | 177 | |
a10695b4 TL |
178 | my $msg = ''; |
179 | my $output = sub { $msg .= "$_[0]\n" }; | |
7730694e | 180 | |
a10695b4 | 181 | $timeout = PVE::RPCEnvironment->is_worker() ? 60*60 : 5 if !$timeout; |
72bdeea1 | 182 | |
1f390a30 | 183 | run_command($cmd, errmsg => "zfs error", outfunc => $output, timeout => $timeout); |
7730694e DM |
184 | |
185 | return $msg; | |
186 | } | |
187 | ||
56362cfb FG |
188 | sub zfs_wait_for_zvol_link { |
189 | my ($class, $scfg, $volname, $timeout) = @_; | |
190 | ||
191 | my $default_timeout = PVE::RPCEnvironment->is_worker() ? 60*5 : 10; | |
192 | $timeout = $default_timeout if !defined($timeout); | |
193 | ||
194 | my ($devname, undef, undef) = $class->path($scfg, $volname); | |
195 | ||
196 | for (my $i = 1; $i <= $timeout; $i++) { | |
197 | last if -b $devname; | |
198 | die "timeout: no zvol device link for '$volname' found after $timeout sec found.\n" | |
199 | if $i == $timeout; | |
200 | ||
201 | sleep(1); | |
202 | } | |
203 | } | |
204 | ||
b3ba95e4 WL |
205 | sub alloc_image { |
206 | my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_; | |
207 | ||
1ccae449 | 208 | my $volname = $name; |
3824ba88 | 209 | |
1ccae449 | 210 | if ($fmt eq 'raw') { |
b3ba95e4 | 211 | |
fc05c9a0 | 212 | die "illegal name '$volname' - should be 'vm-$vmid-*'\n" |
1ccae449 | 213 | if $volname && $volname !~ m/^vm-$vmid-/; |
a44c0147 | 214 | $volname = $class->find_free_diskname($storeid, $scfg, $vmid, $fmt) |
1ccae449 | 215 | if !$volname; |
b3ba95e4 | 216 | |
1ccae449 | 217 | $class->zfs_create_zvol($scfg, $volname, $size); |
56362cfb | 218 | $class->zfs_wait_for_zvol_link($scfg, $volname); |
82e08809 | 219 | |
1ccae449 | 220 | } elsif ( $fmt eq 'subvol') { |
55525ad2 | 221 | |
fc05c9a0 | 222 | die "illegal name '$volname' - should be 'subvol-$vmid-*'\n" |
55525ad2 | 223 | if $volname && $volname !~ m/^subvol-$vmid-/; |
a44c0147 | 224 | $volname = $class->find_free_diskname($storeid, $scfg, $vmid, $fmt) |
55525ad2 DM |
225 | if !$volname; |
226 | ||
fc05c9a0 | 227 | die "illegal name '$volname' - should be 'subvol-$vmid-*'\n" |
1ccae449 | 228 | if $volname !~ m/^subvol-$vmid-/; |
76fd7dc7 | 229 | |
3824ba88 FE |
230 | $class->zfs_create_subvol($scfg, $volname, $size); |
231 | ||
1ccae449 DM |
232 | } else { |
233 | die "unsupported format '$fmt'"; | |
234 | } | |
b3ba95e4 | 235 | |
82e08809 | 236 | return $volname; |
b3ba95e4 WL |
237 | } |
238 | ||
e9565df5 WL |
239 | sub free_image { |
240 | my ($class, $storeid, $scfg, $volname, $isBase) = @_; | |
241 | ||
242 | my (undef, $name, undef) = $class->parse_volname($volname); | |
243 | ||
244 | $class->zfs_delete_zvol($scfg, $name); | |
245 | ||
246 | return undef; | |
247 | } | |
248 | ||
ca04180f WL |
249 | sub list_images { |
250 | my ($class, $storeid, $scfg, $vmid, $vollist, $cache) = @_; | |
251 | ||
252 | $cache->{zfs} = $class->zfs_list_zvol($scfg) if !$cache->{zfs}; | |
253 | my $zfspool = $scfg->{pool}; | |
254 | my $res = []; | |
255 | ||
256 | if (my $dat = $cache->{zfs}->{$zfspool}) { | |
257 | ||
258 | foreach my $image (keys %$dat) { | |
259 | ||
1b83c3d9 | 260 | my $info = $dat->{$image}; |
ca04180f | 261 | |
1b83c3d9 FG |
262 | my $volname = $info->{name}; |
263 | my $parent = $info->{parent}; | |
264 | my $owner = $info->{vmid}; | |
265 | ||
266 | if ($parent && $parent =~ m/^(\S+)\@__base__$/) { | |
ca04180f | 267 | my ($basename) = ($1); |
1b83c3d9 | 268 | $info->{volid} = "$storeid:$basename/$volname"; |
ca04180f | 269 | } else { |
1b83c3d9 | 270 | $info->{volid} = "$storeid:$volname"; |
ca04180f WL |
271 | } |
272 | ||
ca04180f | 273 | if ($vollist) { |
1b83c3d9 | 274 | my $found = grep { $_ eq $info->{volid} } @$vollist; |
ca04180f WL |
275 | next if !$found; |
276 | } else { | |
277 | next if defined ($vmid) && ($owner ne $vmid); | |
278 | } | |
279 | ||
ca04180f WL |
280 | push @$res, $info; |
281 | } | |
282 | } | |
ca04180f WL |
283 | return $res; |
284 | } | |
285 | ||
4966c886 FE |
286 | sub zfs_get_properties { |
287 | my ($class, $scfg, $properties, $dataset, $timeout) = @_; | |
288 | ||
289 | my $result = $class->zfs_request($scfg, $timeout, 'get', '-o', 'value', | |
290 | '-Hp', $properties, $dataset); | |
291 | my @values = split /\n/, $result; | |
292 | return wantarray ? @values : $values[0]; | |
293 | } | |
294 | ||
7730694e DM |
295 | sub zfs_get_pool_stats { |
296 | my ($class, $scfg) = @_; | |
297 | ||
298 | my $available = 0; | |
299 | my $used = 0; | |
300 | ||
4966c886 | 301 | my @lines = $class->zfs_get_properties($scfg, 'available,used', $scfg->{pool}); |
7730694e DM |
302 | |
303 | if($lines[0] =~ /^(\d+)$/) { | |
304 | $available = $1; | |
305 | } | |
306 | ||
307 | if($lines[1] =~ /^(\d+)$/) { | |
308 | $used = $1; | |
309 | } | |
310 | ||
311 | return ($available, $used); | |
312 | } | |
313 | ||
7730694e DM |
314 | sub zfs_create_zvol { |
315 | my ($class, $scfg, $zvol, $size) = @_; | |
cdef3abb ML |
316 | |
317 | # always align size to 1M as workaround until | |
318 | # https://github.com/zfsonlinux/zfs/issues/8541 is solved | |
319 | my $padding = (1024 - $size % 1024) % 1024; | |
320 | $size = $size + $padding; | |
321 | ||
7730694e DM |
322 | my $cmd = ['create']; |
323 | ||
324 | push @$cmd, '-s' if $scfg->{sparse}; | |
325 | ||
326 | push @$cmd, '-b', $scfg->{blocksize} if $scfg->{blocksize}; | |
327 | ||
328 | push @$cmd, '-V', "${size}k", "$scfg->{pool}/$zvol"; | |
329 | ||
44257d2e | 330 | $class->zfs_request($scfg, undef, @$cmd); |
7730694e DM |
331 | } |
332 | ||
1ccae449 DM |
333 | sub zfs_create_subvol { |
334 | my ($class, $scfg, $volname, $size) = @_; | |
335 | ||
336 | my $dataset = "$scfg->{pool}/$volname"; | |
3824ba88 | 337 | |
efaf4017 DM |
338 | my $cmd = ['create', '-o', 'acltype=posixacl', '-o', 'xattr=sa', |
339 | '-o', "refquota=${size}k", $dataset]; | |
1ccae449 | 340 | |
44257d2e | 341 | $class->zfs_request($scfg, undef, @$cmd); |
1ccae449 DM |
342 | } |
343 | ||
7730694e DM |
344 | sub zfs_delete_zvol { |
345 | my ($class, $scfg, $zvol) = @_; | |
346 | ||
1f390a30 WL |
347 | my $err; |
348 | ||
349 | for (my $i = 0; $i < 6; $i++) { | |
350 | ||
44257d2e | 351 | eval { $class->zfs_request($scfg, undef, 'destroy', '-r', "$scfg->{pool}/$zvol"); }; |
1f390a30 WL |
352 | if ($err = $@) { |
353 | if ($err =~ m/^zfs error:(.*): dataset is busy.*/) { | |
354 | sleep(1); | |
27ff0e99 WL |
355 | } elsif ($err =~ m/^zfs error:.*: dataset does not exist.*$/) { |
356 | $err = undef; | |
357 | last; | |
1f390a30 WL |
358 | } else { |
359 | die $err; | |
360 | } | |
361 | } else { | |
362 | last; | |
363 | } | |
364 | } | |
365 | ||
366 | die $err if $err; | |
7730694e DM |
367 | } |
368 | ||
369 | sub zfs_list_zvol { | |
370 | my ($class, $scfg) = @_; | |
371 | ||
d99de0f8 | 372 | my $text = $class->zfs_request($scfg, 10, 'list', '-o', 'name,volsize,origin,type,refquota', '-t', 'volume,filesystem', '-Hrp'); |
7730694e DM |
373 | my $zvols = zfs_parse_zvol_list($text); |
374 | return undef if !$zvols; | |
375 | ||
376 | my $list = (); | |
377 | foreach my $zvol (@$zvols) { | |
1ccae449 DM |
378 | my $pool = $zvol->{pool}; |
379 | my $name = $zvol->{name}; | |
7730694e DM |
380 | my $parent = $zvol->{origin}; |
381 | if($zvol->{origin} && $zvol->{origin} =~ m/^$scfg->{pool}\/(\S+)$/){ | |
382 | $parent = $1; | |
383 | } | |
384 | ||
1ccae449 DM |
385 | $list->{$pool}->{$name} = { |
386 | name => $name, | |
7730694e DM |
387 | size => $zvol->{size}, |
388 | parent => $parent, | |
1ccae449 DM |
389 | format => $zvol->{format}, |
390 | vmid => $zvol->{owner}, | |
7730694e DM |
391 | }; |
392 | } | |
393 | ||
394 | return $list; | |
395 | } | |
396 | ||
2fc59177 DM |
397 | sub zfs_get_latest_snapshot { |
398 | my ($class, $scfg, $volname) = @_; | |
399 | ||
851658c3 WL |
400 | my $vname = ($class->parse_volname($volname))[1]; |
401 | ||
2fc59177 DM |
402 | # abort rollback if snapshot is not the latest |
403 | my @params = ('-t', 'snapshot', '-o', 'name', '-s', 'creation'); | |
44257d2e | 404 | my $text = $class->zfs_request($scfg, undef, 'list', @params); |
2fc59177 DM |
405 | my @snapshots = split(/\n/, $text); |
406 | ||
407 | my $recentsnap; | |
408 | foreach (@snapshots) { | |
851658c3 | 409 | if (/$scfg->{pool}\/$vname/) { |
2fc59177 DM |
410 | s/^.*@//; |
411 | $recentsnap = $_; | |
412 | } | |
413 | } | |
414 | ||
415 | return $recentsnap; | |
416 | } | |
417 | ||
b5e5f7e3 DM |
418 | sub status { |
419 | my ($class, $storeid, $scfg, $cache) = @_; | |
420 | ||
421 | my $total = 0; | |
422 | my $free = 0; | |
423 | my $used = 0; | |
424 | my $active = 0; | |
425 | ||
426 | eval { | |
427 | ($free, $used) = $class->zfs_get_pool_stats($scfg); | |
428 | $active = 1; | |
429 | $total = $free + $used; | |
430 | }; | |
431 | warn $@ if $@; | |
432 | ||
433 | return ($total, $free, $used, $active); | |
434 | } | |
435 | ||
436 | sub volume_size_info { | |
437 | my ($class, $scfg, $storeid, $volname, $timeout) = @_; | |
438 | ||
851658c3 | 439 | my (undef, $vname, undef, undef, undef, undef, $format) = |
79f2b938 DM |
440 | $class->parse_volname($volname); |
441 | ||
442 | my $attr = $format eq 'subvol' ? 'refquota' : 'volsize'; | |
4966c886 FE |
443 | my $value = $class->zfs_get_properties($scfg, $attr, "$scfg->{pool}/$vname"); |
444 | if ($value =~ /^(\d+)$/) { | |
79f2b938 DM |
445 | return $1; |
446 | } | |
447 | ||
448 | die "Could not get zfs volume size\n"; | |
b5e5f7e3 DM |
449 | } |
450 | ||
451 | sub volume_snapshot { | |
f5640e7d | 452 | my ($class, $scfg, $storeid, $volname, $snap) = @_; |
b5e5f7e3 | 453 | |
851658c3 WL |
454 | my $vname = ($class->parse_volname($volname))[1]; |
455 | ||
44257d2e | 456 | $class->zfs_request($scfg, undef, 'snapshot', "$scfg->{pool}/$vname\@$snap"); |
b5e5f7e3 DM |
457 | } |
458 | ||
459 | sub volume_snapshot_delete { | |
460 | my ($class, $scfg, $storeid, $volname, $snap, $running) = @_; | |
461 | ||
851658c3 WL |
462 | my $vname = ($class->parse_volname($volname))[1]; |
463 | ||
464 | $class->deactivate_volume($storeid, $scfg, $vname, $snap, {}); | |
44257d2e | 465 | $class->zfs_request($scfg, undef, 'destroy', "$scfg->{pool}/$vname\@$snap"); |
b5e5f7e3 DM |
466 | } |
467 | ||
2b40ffae WL |
468 | sub volume_snapshot_rollback { |
469 | my ($class, $scfg, $storeid, $volname, $snap) = @_; | |
470 | ||
26a8f21a DC |
471 | my (undef, $vname, undef, undef, undef, undef, $format) = $class->parse_volname($volname); |
472 | ||
473 | my $msg = $class->zfs_request($scfg, undef, 'rollback', "$scfg->{pool}/$vname\@$snap"); | |
851658c3 | 474 | |
26a8f21a DC |
475 | # we have to unmount rollbacked subvols, to invalidate wrong kernel |
476 | # caches, they get mounted in activate volume again | |
477 | # see zfs bug #10931 https://github.com/openzfs/zfs/issues/10931 | |
478 | if ($format eq 'subvol') { | |
479 | $class->zfs_request($scfg, undef, 'unmount', "$scfg->{pool}/$vname"); | |
480 | } | |
481 | ||
482 | return $msg; | |
1597f1f9 WL |
483 | } |
484 | ||
485 | sub volume_rollback_is_possible { | |
3824ba88 FE |
486 | my ($class, $scfg, $storeid, $volname, $snap) = @_; |
487 | ||
2fc59177 | 488 | my $recentsnap = $class->zfs_get_latest_snapshot($scfg, $volname); |
c8eb0178 FG |
489 | |
490 | die "can't rollback, no snapshots exist at all\n" | |
491 | if !defined($recentsnap); | |
492 | ||
d0eaf185 FG |
493 | die "can't rollback, '$snap' is not most recent snapshot\n" |
494 | if $snap ne $recentsnap; | |
2b40ffae | 495 | |
3824ba88 | 496 | return 1; |
2b40ffae WL |
497 | } |
498 | ||
aefe82ea | 499 | sub volume_snapshot_list { |
8b622c2d | 500 | my ($class, $scfg, $storeid, $volname) = @_; |
aefe82ea WL |
501 | |
502 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
503 | ||
504 | my $zpath = "$scfg->{pool}/$name"; | |
505 | ||
aefe82ea WL |
506 | my $snaps = []; |
507 | ||
508 | my $cmd = ['zfs', 'list', '-r', '-H', '-S', 'name', '-t', 'snap', '-o', | |
509 | 'name', $zpath]; | |
510 | ||
aefe82ea WL |
511 | my $outfunc = sub { |
512 | my $line = shift; | |
513 | ||
8b622c2d | 514 | if ($line =~ m/^\Q$zpath\E@(.*)$/) { |
aefe82ea WL |
515 | push @$snaps, $1; |
516 | } | |
517 | }; | |
518 | ||
519 | eval { run_command( [$cmd], outfunc => $outfunc , errfunc => sub{}); }; | |
520 | ||
521 | # return an empty array if dataset does not exist. | |
522 | return $snaps; | |
523 | } | |
524 | ||
26de022b TL |
525 | my sub dataset_mounted_heuristic { |
526 | my ($dataset) = @_; | |
527 | ||
528 | my $mounts = PVE::ProcFSTools::parse_proc_mounts(); | |
529 | for my $mp (@$mounts) { | |
530 | my ($what, $dir, $fs) = $mp->@*; | |
531 | next if $fs ne 'zfs'; | |
532 | # check for root-dataset or any child-dataset (root-dataset could have 'canmount=off') | |
533 | # If any child is mounted heuristically assume that `zfs mount -a` was successful | |
534 | next if $what !~ m!^$dataset(?:/|$)!; | |
535 | return 1; | |
536 | } | |
537 | return 0; | |
538 | } | |
539 | ||
0a3d992f DM |
540 | sub activate_storage { |
541 | my ($class, $storeid, $scfg, $cache) = @_; | |
86d47239 | 542 | |
93124ef4 | 543 | # Note: $scfg->{pool} can include dataset <pool>/<dataset> |
56a7637a SI |
544 | my $dataset = $scfg->{pool}; |
545 | my $pool = ($dataset =~ s!/.*$!!r); | |
546 | ||
26de022b | 547 | return 1 if dataset_mounted_heuristic($dataset); # early return |
93124ef4 | 548 | |
b5c8278a | 549 | my $pool_imported = sub { |
a2d747a1 | 550 | my @param = ('-o', 'name', '-H', $pool); |
b5c8278a | 551 | my $res = eval { $class->zfs_request($scfg, undef, 'zpool_list', @param) }; |
a2d747a1 SI |
552 | warn "$@\n" if $@; |
553 | ||
b5c8278a TL |
554 | return defined($res) && $res =~ m/$pool/; |
555 | }; | |
556 | ||
26de022b TL |
557 | if (!$pool_imported->()) { |
558 | # import can only be done if not yet imported! | |
559 | my @param = ('-d', '/dev/disk/by-id/', '-o', 'cachefile=none', $pool); | |
560 | eval { $class->zfs_request($scfg, undef, 'zpool_import', @param) }; | |
561 | if (my $err = $@) { | |
562 | # just could've raced with another import, so recheck if it is imported | |
563 | die "could not activate storage '$storeid', $err\n" if !$pool_imported->(); | |
dc18abe0 | 564 | } |
86d47239 | 565 | } |
26de022b TL |
566 | eval { $class->zfs_request($scfg, undef, 'mount', '-a') }; |
567 | die "could not activate storage '$storeid', $@\n" if $@; | |
0a3d992f DM |
568 | return 1; |
569 | } | |
570 | ||
571 | sub deactivate_storage { | |
572 | my ($class, $storeid, $scfg, $cache) = @_; | |
573 | return 1; | |
574 | } | |
575 | ||
d4c63dc1 | 576 | sub activate_volume { |
02e797b8 | 577 | my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_; |
56362cfb FG |
578 | |
579 | return 1 if defined($snapname); | |
580 | ||
3893d275 | 581 | my (undef, $dataset, undef, undef, undef, undef, $format) = $class->parse_volname($volname); |
56362cfb | 582 | |
815df2dd FE |
583 | if ($format eq 'raw') { |
584 | $class->zfs_wait_for_zvol_link($scfg, $volname); | |
585 | } elsif ($format eq 'subvol') { | |
3893d275 | 586 | my $mounted = $class->zfs_get_properties($scfg, 'mounted', "$scfg->{pool}/$dataset"); |
815df2dd | 587 | if ($mounted !~ m/^yes$/) { |
3893d275 | 588 | $class->zfs_request($scfg, undef, 'mount', "$scfg->{pool}/$dataset"); |
815df2dd FE |
589 | } |
590 | } | |
56362cfb | 591 | |
d4c63dc1 WL |
592 | return 1; |
593 | } | |
594 | ||
595 | sub deactivate_volume { | |
02e797b8 | 596 | my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_; |
d4c63dc1 WL |
597 | return 1; |
598 | } | |
5bb8e010 | 599 | |
d3a282e8 WL |
600 | sub clone_image { |
601 | my ($class, $scfg, $storeid, $volname, $vmid, $snap) = @_; | |
602 | ||
603 | $snap ||= '__base__'; | |
604 | ||
55525ad2 | 605 | my ($vtype, $basename, $basevmid, undef, undef, $isBase, $format) = |
d3a282e8 WL |
606 | $class->parse_volname($volname); |
607 | ||
608 | die "clone_image only works on base images\n" if !$isBase; | |
609 | ||
a44c0147 | 610 | my $name = $class->find_free_diskname($storeid, $scfg, $vmid, $format); |
d3a282e8 | 611 | |
851658c3 | 612 | if ($format eq 'subvol') { |
e05113fb | 613 | my $size = $class->zfs_request($scfg, undef, 'list', '-Hp', '-o', 'refquota', "$scfg->{pool}/$basename"); |
851658c3 | 614 | chomp($size); |
44257d2e | 615 | $class->zfs_request($scfg, undef, 'clone', "$scfg->{pool}/$basename\@$snap", "$scfg->{pool}/$name", '-o', "refquota=$size"); |
851658c3 | 616 | } else { |
44257d2e | 617 | $class->zfs_request($scfg, undef, 'clone', "$scfg->{pool}/$basename\@$snap", "$scfg->{pool}/$name"); |
851658c3 | 618 | } |
d3a282e8 | 619 | |
851658c3 | 620 | return "$basename/$name"; |
d3a282e8 WL |
621 | } |
622 | ||
623 | sub create_base { | |
624 | my ($class, $storeid, $scfg, $volname) = @_; | |
625 | ||
626 | my $snap = '__base__'; | |
627 | ||
851658c3 | 628 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase, $format) = |
d3a282e8 WL |
629 | $class->parse_volname($volname); |
630 | ||
631 | die "create_base not possible with base image\n" if $isBase; | |
632 | ||
633 | my $newname = $name; | |
851658c3 WL |
634 | if ( $format eq 'subvol' ) { |
635 | $newname =~ s/^subvol-/basevol-/; | |
636 | } else { | |
637 | $newname =~ s/^vm-/base-/; | |
638 | } | |
d3a282e8 WL |
639 | my $newvolname = $basename ? "$basename/$newname" : "$newname"; |
640 | ||
44257d2e | 641 | $class->zfs_request($scfg, undef, 'rename', "$scfg->{pool}/$name", "$scfg->{pool}/$newname"); |
d3a282e8 WL |
642 | |
643 | my $running = undef; #fixme : is create_base always offline ? | |
644 | ||
645 | $class->volume_snapshot($scfg, $storeid, $newname, $snap, $running); | |
646 | ||
647 | return $newvolname; | |
648 | } | |
649 | ||
a4034b9f WL |
650 | sub volume_resize { |
651 | my ($class, $scfg, $storeid, $volname, $size, $running) = @_; | |
652 | ||
79f2b938 DM |
653 | my $new_size = int($size/1024); |
654 | ||
851658c3 | 655 | my (undef, $vname, undef, undef, undef, undef, $format) = |
79f2b938 DM |
656 | $class->parse_volname($volname); |
657 | ||
658 | my $attr = $format eq 'subvol' ? 'refquota' : 'volsize'; | |
a4034b9f | 659 | |
d3e3e5d6 FE |
660 | # align size to 1M so we always have a valid multiple of the volume block size |
661 | if ($format eq 'raw') { | |
662 | my $padding = (1024 - $new_size % 1024) % 1024; | |
663 | $new_size = $new_size + $padding; | |
664 | } | |
665 | ||
44257d2e | 666 | $class->zfs_request($scfg, undef, 'set', "$attr=${new_size}k", "$scfg->{pool}/$vname"); |
a4034b9f WL |
667 | |
668 | return $new_size; | |
669 | } | |
670 | ||
7118dd91 DM |
671 | sub storage_can_replicate { |
672 | my ($class, $scfg, $storeid, $format) = @_; | |
673 | ||
674 | return 1 if $format eq 'raw' || $format eq 'subvol'; | |
675 | ||
676 | return 0; | |
677 | } | |
678 | ||
2b40ffae WL |
679 | sub volume_has_feature { |
680 | my ($class, $scfg, $feature, $storeid, $volname, $snapname, $running) = @_; | |
681 | ||
682 | my $features = { | |
683 | snapshot => { current => 1, snap => 1}, | |
684 | clone => { base => 1}, | |
685 | template => { current => 1}, | |
686 | copy => { base => 1, current => 1}, | |
baafddbd | 687 | sparseinit => { base => 1, current => 1}, |
f189504c | 688 | replicate => { base => 1, current => 1}, |
2b40ffae WL |
689 | }; |
690 | ||
691 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) = | |
692 | $class->parse_volname($volname); | |
693 | ||
694 | my $key = undef; | |
695 | ||
696 | if ($snapname) { | |
697 | $key = 'snap'; | |
698 | } else { | |
699 | $key = $isBase ? 'base' : 'current'; | |
700 | } | |
701 | ||
702 | return 1 if $features->{$feature}->{$key}; | |
703 | ||
704 | return undef; | |
705 | } | |
706 | ||
47f37b53 WB |
707 | sub volume_export { |
708 | my ($class, $scfg, $storeid, $fh, $volname, $format, $snapshot, $base_snapshot, $with_snapshots) = @_; | |
709 | ||
710 | die "unsupported export stream format for $class: $format\n" | |
711 | if $format ne 'zfs'; | |
712 | ||
713 | die "$class storage can only export snapshots\n" | |
714 | if !defined($snapshot); | |
715 | ||
9a75947b WL |
716 | my $dataset = ($class->parse_volname($volname))[1]; |
717 | ||
47f37b53 WB |
718 | my $fd = fileno($fh); |
719 | die "internal error: invalid file handle for volume_export\n" | |
720 | if !defined($fd); | |
721 | $fd = ">&$fd"; | |
722 | ||
723 | # For zfs we always create a replication stream (-R) which means the remote | |
724 | # side will always delete non-existing source snapshots. This should work | |
725 | # for all our use cases. | |
726 | my $cmd = ['zfs', 'send', '-Rpv']; | |
727 | if (defined($base_snapshot)) { | |
728 | my $arg = $with_snapshots ? '-I' : '-i'; | |
729 | push @$cmd, $arg, $base_snapshot; | |
730 | } | |
9a75947b | 731 | push @$cmd, '--', "$scfg->{pool}/$dataset\@$snapshot"; |
47f37b53 WB |
732 | |
733 | run_command($cmd, output => $fd); | |
734 | ||
735 | return; | |
736 | } | |
737 | ||
d390328b WB |
738 | sub volume_export_formats { |
739 | my ($class, $scfg, $storeid, $volname, $snapshot, $base_snapshot, $with_snapshots) = @_; | |
740 | ||
741 | my @formats = ('zfs'); | |
742 | # TODOs: | |
743 | # push @formats, 'fies' if $volname !~ /^(?:basevol|subvol)-/; | |
744 | # push @formats, 'raw' if !$base_snapshot && !$with_snapshots; | |
745 | return @formats; | |
746 | } | |
747 | ||
47f37b53 | 748 | sub volume_import { |
a97d3ee4 | 749 | my ($class, $scfg, $storeid, $fh, $volname, $format, $base_snapshot, $with_snapshots, $allow_rename) = @_; |
47f37b53 WB |
750 | |
751 | die "unsupported import stream format for $class: $format\n" | |
752 | if $format ne 'zfs'; | |
753 | ||
754 | my $fd = fileno($fh); | |
755 | die "internal error: invalid file handle for volume_import\n" | |
756 | if !defined($fd); | |
757 | ||
a97d3ee4 | 758 | my (undef, $dataset, $vmid) = $class->parse_volname($volname); |
9a75947b | 759 | my $zfspath = "$scfg->{pool}/$dataset"; |
47f37b53 WB |
760 | my $suffix = defined($base_snapshot) ? "\@$base_snapshot" : ''; |
761 | my $exists = 0 == run_command(['zfs', 'get', '-H', 'name', $zfspath.$suffix], | |
0fd0a627 | 762 | noerr => 1, quiet => 1); |
47f37b53 WB |
763 | if (defined($base_snapshot)) { |
764 | die "base snapshot '$zfspath\@$base_snapshot' doesn't exist\n" if !$exists; | |
a97d3ee4 FE |
765 | } elsif ($exists) { |
766 | die "volume '$zfspath' already exists\n" if !$allow_rename; | |
767 | warn "volume '$zfspath' already exists - importing with a different name\n"; | |
768 | $dataset = $class->find_free_diskname($storeid, $scfg, $vmid, $format); | |
769 | $zfspath = "$scfg->{pool}/$dataset"; | |
47f37b53 WB |
770 | } |
771 | ||
772 | eval { run_command(['zfs', 'recv', '-F', '--', $zfspath], input => "<&$fd") }; | |
773 | if (my $err = $@) { | |
774 | if (defined($base_snapshot)) { | |
775 | eval { run_command(['zfs', 'rollback', '-r', '--', "$zfspath\@$base_snapshot"]) }; | |
776 | } else { | |
777 | eval { run_command(['zfs', 'destroy', '-r', '--', $zfspath]) }; | |
778 | } | |
779 | die $err; | |
780 | } | |
781 | ||
a97d3ee4 | 782 | return "$storeid:$dataset"; |
47f37b53 WB |
783 | } |
784 | ||
d390328b WB |
785 | sub volume_import_formats { |
786 | my ($class, $scfg, $storeid, $volname, $base_snapshot, $with_snapshots) = @_; | |
787 | ||
788 | return $class->volume_export_formats($scfg, $storeid, $volname, undef, $base_snapshot, $with_snapshots); | |
789 | } | |
790 | ||
5bb8e010 | 791 | 1; |