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