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Commit | Line | Data |
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4f914e6e MR |
1 | package PVE::Storage::ZFSPlugin; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5 | use IO::File; | |
6 | use POSIX; | |
5332e6c9 | 7 | use PVE::Tools qw(run_command); |
5bb8e010 | 8 | use PVE::Storage::ZFSDirPlugin; |
4f914e6e | 9 | |
5bb8e010 | 10 | use base qw(PVE::Storage::ZFSDirPlugin); |
a7d56be6 MR |
11 | use PVE::Storage::LunCmd::Comstar; |
12 | use PVE::Storage::LunCmd::Istgt; | |
78a64432 | 13 | use PVE::Storage::LunCmd::Iet; |
4f914e6e MR |
14 | |
15 | my @ssh_opts = ('-o', 'BatchMode=yes'); | |
16 | my @ssh_cmd = ('/usr/bin/ssh', @ssh_opts); | |
3b219e80 | 17 | my $id_rsa_path = '/etc/pve/priv/zfs'; |
4f914e6e | 18 | |
a7d56be6 | 19 | my $lun_cmds = { |
3b219e80 MR |
20 | create_lu => 1, |
21 | delete_lu => 1, | |
22 | import_lu => 1, | |
23 | modify_lu => 1, | |
24 | add_view => 1, | |
25 | list_view => 1, | |
26 | list_lu => 1, | |
a7d56be6 MR |
27 | }; |
28 | ||
29 | my $zfs_unknown_scsi_provider = sub { | |
3b219e80 | 30 | my ($provider) = @_; |
a7d56be6 | 31 | |
3b219e80 | 32 | die "$provider: unknown iscsi provider. Available [comstar, istgt, iet]"; |
a7d56be6 MR |
33 | }; |
34 | ||
35 | my $zfs_get_base = sub { | |
3b219e80 MR |
36 | my ($scfg) = @_; |
37 | ||
38 | if ($scfg->{iscsiprovider} eq 'comstar') { | |
39 | return PVE::Storage::LunCmd::Comstar::get_base; | |
40 | } elsif ($scfg->{iscsiprovider} eq 'istgt') { | |
41 | return PVE::Storage::LunCmd::Istgt::get_base; | |
42 | } elsif ($scfg->{iscsiprovider} eq 'iet') { | |
43 | return PVE::Storage::LunCmd::Iet::get_base; | |
44 | } else { | |
45 | $zfs_unknown_scsi_provider->($scfg->{iscsiprovider}); | |
46 | } | |
a7d56be6 MR |
47 | }; |
48 | ||
4f914e6e | 49 | sub zfs_request { |
7730694e | 50 | my ($class, $scfg, $timeout, $method, @params) = @_; |
4f914e6e | 51 | |
5332e6c9 | 52 | $timeout = 5 if !$timeout; |
4f914e6e | 53 | |
e8004c9c DM |
54 | my $msg = ''; |
55 | ||
3b219e80 MR |
56 | if ($lun_cmds->{$method}) { |
57 | if ($scfg->{iscsiprovider} eq 'comstar') { | |
58 | $msg = PVE::Storage::LunCmd::Comstar::run_lun_command($scfg, $timeout, $method, @params); | |
59 | } elsif ($scfg->{iscsiprovider} eq 'istgt') { | |
60 | $msg = PVE::Storage::LunCmd::Istgt::run_lun_command($scfg, $timeout, $method, @params); | |
61 | } elsif ($scfg->{iscsiprovider} eq 'iet') { | |
62 | $msg = PVE::Storage::LunCmd::Iet::run_lun_command($scfg, $timeout, $method, @params); | |
63 | } else { | |
64 | $zfs_unknown_scsi_provider->($scfg->{iscsiprovider}); | |
65 | } | |
66 | } else { | |
3b219e80 | 67 | |
e8004c9c DM |
68 | my $target = 'root@' . $scfg->{portal}; |
69 | ||
70 | my $cmd = [@ssh_cmd, '-i', "$id_rsa_path/$scfg->{portal}_id_rsa", $target]; | |
3b219e80 | 71 | |
e8004c9c DM |
72 | if ($method eq 'zpool_list') { |
73 | push @$cmd, 'zpool', 'list'; | |
74 | } else { | |
75 | push @$cmd, 'zfs', $method; | |
76 | } | |
3b219e80 | 77 | |
e8004c9c | 78 | push @$cmd, @params; |
3b219e80 | 79 | |
e8004c9c DM |
80 | my $output = sub { |
81 | my $line = shift; | |
82 | $msg .= "$line\n"; | |
3b219e80 MR |
83 | }; |
84 | ||
85 | run_command($cmd, outfunc => $output, timeout => $timeout); | |
86 | } | |
4f914e6e MR |
87 | |
88 | return $msg; | |
89 | } | |
90 | ||
4f914e6e | 91 | sub zfs_get_lu_name { |
7730694e | 92 | my ($class, $scfg, $zvol) = @_; |
4f914e6e | 93 | |
3b219e80 | 94 | my $base = $zfs_get_base->($scfg); |
34eaae3f DM |
95 | |
96 | my $object = ($zvol =~ /^.+\/.+/) ? "$base/$zvol" : "$base/$scfg->{pool}/$zvol"; | |
4f914e6e | 97 | |
7730694e | 98 | my $lu_name = $class->zfs_request($scfg, undef, 'list_lu', $object); |
a7d56be6 | 99 | |
3b219e80 MR |
100 | return $lu_name if $lu_name; |
101 | ||
4f914e6e MR |
102 | die "Could not find lu_name for zvol $zvol"; |
103 | } | |
104 | ||
4f914e6e | 105 | sub zfs_add_lun_mapping_entry { |
7730694e | 106 | my ($class, $scfg, $zvol, $guid) = @_; |
4f914e6e | 107 | |
6b5bca68 DM |
108 | if (!defined($guid)) { |
109 | $guid = $class->zfs_get_lu_name($scfg, $zvol); | |
4f914e6e | 110 | } |
3b219e80 | 111 | |
7730694e | 112 | $class->zfs_request($scfg, undef, 'add_view', $guid); |
4f914e6e MR |
113 | } |
114 | ||
115 | sub zfs_delete_lu { | |
7730694e | 116 | my ($class, $scfg, $zvol) = @_; |
4f914e6e | 117 | |
7730694e | 118 | my $guid = $class->zfs_get_lu_name($scfg, $zvol); |
4f914e6e | 119 | |
7730694e | 120 | $class->zfs_request($scfg, undef, 'delete_lu', $guid); |
4f914e6e MR |
121 | } |
122 | ||
123 | sub zfs_create_lu { | |
7730694e | 124 | my ($class, $scfg, $zvol) = @_; |
4f914e6e | 125 | |
3b219e80 | 126 | my $base = $zfs_get_base->($scfg); |
7730694e | 127 | my $guid = $class->zfs_request($scfg, undef, 'create_lu', "$base/$scfg->{pool}/$zvol"); |
4f914e6e MR |
128 | |
129 | return $guid; | |
130 | } | |
131 | ||
132 | sub zfs_import_lu { | |
7730694e | 133 | my ($class, $scfg, $zvol) = @_; |
4f914e6e | 134 | |
3b219e80 | 135 | my $base = $zfs_get_base->($scfg); |
7730694e | 136 | $class->zfs_request($scfg, undef, 'import_lu', "$base/$scfg->{pool}/$zvol"); |
4f914e6e MR |
137 | } |
138 | ||
139 | sub zfs_resize_lu { | |
7730694e | 140 | my ($class, $scfg, $zvol, $size) = @_; |
4f914e6e | 141 | |
7730694e | 142 | my $guid = $class->zfs_get_lu_name($scfg, $zvol); |
4f914e6e | 143 | |
7730694e | 144 | $class->zfs_request($scfg, undef, 'modify_lu', "${size}K", $guid); |
4f914e6e MR |
145 | } |
146 | ||
147 | sub zfs_get_lun_number { | |
7730694e | 148 | my ($class, $scfg, $guid) = @_; |
4f914e6e MR |
149 | |
150 | die "could not find lun_number for guid $guid" if !$guid; | |
151 | ||
7730694e | 152 | return $class->zfs_request($scfg, undef, 'list_view', $guid); |
4f914e6e MR |
153 | } |
154 | ||
155 | # Configuration | |
156 | ||
157 | sub type { | |
158 | return 'zfs'; | |
159 | } | |
160 | ||
161 | sub plugindata { | |
162 | return { | |
6b5bca68 | 163 | content => [ {images => 1}, { images => 1 }], |
4f914e6e MR |
164 | }; |
165 | } | |
166 | ||
167 | sub properties { | |
168 | return { | |
6b5bca68 DM |
169 | iscsiprovider => { |
170 | description => "iscsi provider", | |
171 | type => 'string', | |
172 | }, | |
173 | # this will disable write caching on comstar and istgt. | |
174 | # it is not implemented for iet. iet blockio always operates with | |
175 | # writethrough caching when not in readonly mode | |
176 | nowritecache => { | |
177 | description => "disable write caching on the target", | |
178 | type => 'boolean', | |
179 | }, | |
180 | comstar_tg => { | |
181 | description => "target group for comstar views", | |
182 | type => 'string', | |
183 | }, | |
184 | comstar_hg => { | |
185 | description => "host group for comstar views", | |
186 | type => 'string', | |
187 | }, | |
4f914e6e MR |
188 | }; |
189 | } | |
190 | ||
191 | sub options { | |
192 | return { | |
6b5bca68 DM |
193 | nodes => { optional => 1 }, |
194 | disable => { optional => 1 }, | |
195 | portal => { fixed => 1 }, | |
196 | target => { fixed => 1 }, | |
197 | pool => { fixed => 1 }, | |
198 | blocksize => { fixed => 1 }, | |
199 | iscsiprovider => { fixed => 1 }, | |
200 | nowritecache => { optional => 1 }, | |
201 | sparse => { optional => 1 }, | |
202 | comstar_hg => { optional => 1 }, | |
203 | comstar_tg => { optional => 1 }, | |
204 | content => { optional => 1 }, | |
4f914e6e MR |
205 | }; |
206 | } | |
207 | ||
208 | # Storage implementation | |
209 | ||
4f914e6e MR |
210 | sub path { |
211 | my ($class, $scfg, $volname) = @_; | |
212 | ||
213 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
214 | ||
215 | my $target = $scfg->{target}; | |
216 | my $portal = $scfg->{portal}; | |
217 | ||
7730694e DM |
218 | my $guid = $class->zfs_get_lu_name($scfg, $name); |
219 | my $lun = $class->zfs_get_lun_number($scfg, $guid); | |
3b219e80 | 220 | |
4f914e6e | 221 | my $path = "iscsi://$portal/$target/$lun"; |
3b219e80 | 222 | |
4f914e6e MR |
223 | return ($path, $vmid, $vtype); |
224 | } | |
225 | ||
4f914e6e MR |
226 | sub create_base { |
227 | my ($class, $storeid, $scfg, $volname) = @_; | |
228 | ||
229 | my $snap = '__base__'; | |
230 | ||
231 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) = | |
232 | $class->parse_volname($volname); | |
233 | ||
234 | die "create_base not possible with base image\n" if $isBase; | |
235 | ||
236 | my $newname = $name; | |
237 | $newname =~ s/^vm-/base-/; | |
238 | ||
239 | my $newvolname = $basename ? "$basename/$newname" : "$newname"; | |
240 | ||
7730694e DM |
241 | $class->zfs_delete_lu($scfg, $name); |
242 | $class->zfs_request($scfg, undef, 'rename', "$scfg->{pool}/$name", "$scfg->{pool}/$newname"); | |
4f914e6e | 243 | |
7730694e DM |
244 | my $guid = $class->zfs_create_lu($scfg, $newname); |
245 | $class->zfs_add_lun_mapping_entry($scfg, $newname, $guid); | |
4f914e6e MR |
246 | |
247 | my $running = undef; #fixme : is create_base always offline ? | |
248 | ||
249 | $class->volume_snapshot($scfg, $storeid, $newname, $snap, $running); | |
250 | ||
251 | return $newvolname; | |
252 | } | |
253 | ||
254 | sub clone_image { | |
f236eaf8 | 255 | my ($class, $scfg, $storeid, $volname, $vmid, $snap) = @_; |
4f914e6e | 256 | |
f236eaf8 | 257 | $snap ||= '__base__'; |
4f914e6e MR |
258 | |
259 | my ($vtype, $basename, $basevmid, undef, undef, $isBase) = | |
260 | $class->parse_volname($volname); | |
261 | ||
262 | die "clone_image only works on base images\n" if !$isBase; | |
263 | ||
7730694e | 264 | my $name = $class->zfs_find_free_diskname($storeid, $scfg, $vmid); |
4f914e6e MR |
265 | |
266 | warn "clone $volname: $basename to $name\n"; | |
267 | ||
7730694e | 268 | $class->zfs_request($scfg, undef, 'clone', "$scfg->{pool}/$basename\@$snap", "$scfg->{pool}/$name"); |
4f914e6e | 269 | |
7730694e DM |
270 | my $guid = $class->zfs_create_lu($scfg, $name); |
271 | $class->zfs_add_lun_mapping_entry($scfg, $name, $guid); | |
4f914e6e MR |
272 | |
273 | return $name; | |
274 | } | |
275 | ||
276 | sub alloc_image { | |
277 | my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_; | |
b3ba95e4 WL |
278 | |
279 | my $volname = $class->SUPER::alloc_image($storeid, $scfg, $vmid, $fmt, $name, $size); | |
280 | ||
281 | my $guid = $class->zfs_create_lu($scfg, $volname); | |
282 | $class->zfs_add_lun_mapping_entry($scfg, $volname, $guid); | |
4f914e6e | 283 | |
b3ba95e4 | 284 | return $volname; |
4f914e6e MR |
285 | } |
286 | ||
287 | sub free_image { | |
288 | my ($class, $storeid, $scfg, $volname, $isBase) = @_; | |
289 | ||
290 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
291 | ||
7730694e | 292 | $class->zfs_delete_lu($scfg, $name); |
6b5bca68 DM |
293 | |
294 | eval { $class->zfs_delete_zvol($scfg, $name); }; | |
295 | if (my $err = $@) { | |
7730694e DM |
296 | my $guid = $class->zfs_create_lu($scfg, $name); |
297 | $class->zfs_add_lun_mapping_entry($scfg, $name, $guid); | |
4f914e6e | 298 | die $err; |
6b5bca68 | 299 | } |
4f914e6e MR |
300 | |
301 | return undef; | |
4f914e6e MR |
302 | } |
303 | ||
4f914e6e MR |
304 | sub activate_storage { |
305 | my ($class, $storeid, $scfg, $cache) = @_; | |
306 | return 1; | |
307 | } | |
308 | ||
309 | sub deactivate_storage { | |
310 | my ($class, $storeid, $scfg, $cache) = @_; | |
311 | return 1; | |
312 | } | |
313 | ||
4f914e6e MR |
314 | sub volume_resize { |
315 | my ($class, $scfg, $storeid, $volname, $size, $running) = @_; | |
316 | ||
317 | my $new_size = ($size/1024); | |
318 | ||
7730694e DM |
319 | $class->zfs_request($scfg, undef, 'set', 'volsize=' . $new_size . 'k', "$scfg->{pool}/$volname"); |
320 | $class->zfs_resize_lu($scfg, $volname, $new_size); | |
4f914e6e MR |
321 | } |
322 | ||
4f914e6e MR |
323 | sub volume_snapshot_rollback { |
324 | my ($class, $scfg, $storeid, $volname, $snap) = @_; | |
325 | ||
a315b9ff CA |
326 | # abort rollback if snapshot is not the latest |
327 | my @params = ('-t', 'snapshot', '-o', 'name', '-s', 'creation'); | |
7730694e | 328 | my $text = $class->zfs_request($scfg, undef, 'list', @params); |
a315b9ff CA |
329 | my @snapshots = split(/\n/, $text); |
330 | my $recentsnap = undef; | |
331 | foreach (@snapshots) { | |
332 | if (/$scfg->{pool}\/$volname/) { | |
333 | s/^.*@//; | |
334 | $recentsnap = $_; | |
6b5bca68 | 335 | } |
a315b9ff CA |
336 | } |
337 | if ($snap ne $recentsnap) { | |
338 | die "cannot rollback, more recent snapshots exist\n"; | |
339 | } | |
340 | ||
7730694e | 341 | $class->zfs_delete_lu($scfg, $volname); |
4f914e6e | 342 | |
7730694e | 343 | $class->zfs_request($scfg, undef, 'rollback', "$scfg->{pool}/$volname\@$snap"); |
4f914e6e | 344 | |
7730694e | 345 | $class->zfs_import_lu($scfg, $volname); |
4f914e6e | 346 | |
7730694e | 347 | $class->zfs_add_lun_mapping_entry($scfg, $volname); |
4f914e6e MR |
348 | } |
349 | ||
4f914e6e MR |
350 | sub volume_has_feature { |
351 | my ($class, $scfg, $feature, $storeid, $volname, $snapname, $running) = @_; | |
352 | ||
353 | my $features = { | |
6b5bca68 DM |
354 | snapshot => { current => 1, snap => 1}, |
355 | clone => { base => 1}, | |
356 | template => { current => 1}, | |
357 | copy => { base => 1, current => 1}, | |
4f914e6e MR |
358 | }; |
359 | ||
360 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) = | |
6b5bca68 | 361 | $class->parse_volname($volname); |
4f914e6e MR |
362 | |
363 | my $key = undef; | |
5332e6c9 DM |
364 | |
365 | if ($snapname) { | |
6b5bca68 | 366 | $key = 'snap'; |
4f914e6e | 367 | } else { |
6b5bca68 | 368 | $key = $isBase ? 'base' : 'current'; |
4f914e6e | 369 | } |
5332e6c9 | 370 | |
4f914e6e MR |
371 | return 1 if $features->{$feature}->{$key}; |
372 | ||
373 | return undef; | |
374 | } | |
375 | ||
376 | 1; |