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1 | package PVE::Storage::RBDPlugin; | |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5 | use IO::File; | |
6 | use PVE::Tools qw(run_command trim); | |
7 | use PVE::Storage::Plugin; | |
8 | use PVE::JSONSchema qw(get_standard_option); | |
9 | ||
10 | use base qw(PVE::Storage::Plugin); | |
11 | ||
12 | sub rbd_unittobytes { | |
13 | { | |
14 | "M" => 1024*1024, | |
15 | "G" => 1024*1024*1024, | |
16 | "T" => 1024*1024*1024*1024, | |
17 | } | |
18 | } | |
19 | ||
20 | my $rbd_cmd = sub { | |
21 | my ($scfg, $storeid, $op, @options) = @_; | |
22 | ||
23 | my $monhost = $scfg->{monhost}; | |
24 | $monhost =~ s/;/,/g; | |
25 | ||
26 | my $cmd = ['/usr/bin/rbd', '-p', $scfg->{pool}, '-m', $monhost, '-n', | |
27 | "client.$scfg->{username}", | |
28 | '--keyring', "/etc/pve/priv/ceph/${storeid}.keyring", | |
29 | '--auth_supported', $scfg->{authsupported}, $op]; | |
30 | ||
31 | push @$cmd, @options if scalar(@options); | |
32 | ||
33 | return $cmd; | |
34 | }; | |
35 | ||
36 | my $rados_cmd = sub { | |
37 | my ($scfg, $storeid, $op, @options) = @_; | |
38 | ||
39 | my $monhost = $scfg->{monhost}; | |
40 | $monhost =~ s/;/,/g; | |
41 | ||
42 | my $cmd = ['/usr/bin/rados', '-p', $scfg->{pool}, '-m', $monhost, '-n', | |
43 | "client.$scfg->{username}", | |
44 | '--keyring', "/etc/pve/priv/ceph/${storeid}.keyring", | |
45 | '--auth_supported', $scfg->{authsupported}, $op]; | |
46 | ||
47 | push @$cmd, @options if scalar(@options); | |
48 | ||
49 | return $cmd; | |
50 | }; | |
51 | ||
52 | sub rbd_ls { | |
53 | my ($scfg, $storeid) = @_; | |
54 | ||
55 | my $cmd = &$rbd_cmd($scfg, $storeid, 'ls', '-l'); | |
56 | ||
57 | my $list = {}; | |
58 | ||
59 | my $parser = sub { | |
60 | my $line = shift; | |
61 | ||
62 | if ($line =~ m/^((vm|base)-(\d+)-disk-\d+)\s+(\d+)(M|G|T)\s((\S+)\/((vm|base)-\d+-\S+@\S+))?/) { | |
63 | my ($image, $owner, $size, $unit, $parent) = ($1, $3, $4, $5, $8); | |
64 | ||
65 | $list->{$scfg->{pool}}->{$image} = { | |
66 | name => $image, | |
67 | size => $size*rbd_unittobytes()->{$unit}, | |
68 | parent => $parent, | |
69 | vmid => $owner | |
70 | }; | |
71 | } | |
72 | }; | |
73 | ||
74 | eval { | |
75 | run_command($cmd, errmsg => "rbd error", errfunc => sub {}, outfunc => $parser); | |
76 | }; | |
77 | my $err = $@; | |
78 | ||
79 | die $err if $err && $err !~ m/doesn't contain rbd images/ ; | |
80 | ||
81 | return $list; | |
82 | } | |
83 | ||
84 | sub rbd_volume_info { | |
85 | my ($scfg, $storeid, $volname, $snap) = @_; | |
86 | ||
87 | my $cmd = undef; | |
88 | ||
89 | if($snap){ | |
90 | $cmd = &$rbd_cmd($scfg, $storeid, 'info', $volname, '--snap', $snap); | |
91 | }else{ | |
92 | $cmd = &$rbd_cmd($scfg, $storeid, 'info', $volname); | |
93 | } | |
94 | ||
95 | my $size = undef; | |
96 | my $parent = undef; | |
97 | my $format = undef; | |
98 | my $protected = undef; | |
99 | ||
100 | my $parser = sub { | |
101 | my $line = shift; | |
102 | ||
103 | if ($line =~ m/size (\d+) (M|G|T)B in (\d+) objects/) { | |
104 | $size = $1 * rbd_unittobytes()->{$2} if ($1); | |
105 | } elsif ($line =~ m/parent:\s(\S+)\/(\S+)/) { | |
106 | $parent = $2; | |
107 | } elsif ($line =~ m/format:\s(\d+)/) { | |
108 | $format = $1; | |
109 | } elsif ($line =~ m/protected:\s(\S+)/) { | |
110 | $protected = 1 if $1 eq "True"; | |
111 | } | |
112 | ||
113 | }; | |
114 | ||
115 | run_command($cmd, errmsg => "rbd error", errfunc => sub {}, outfunc => $parser); | |
116 | ||
117 | return ($size, $parent, $format, $protected); | |
118 | } | |
119 | ||
120 | sub addslashes { | |
121 | my $text = shift; | |
122 | $text =~ s/;/\\;/g; | |
123 | $text =~ s/:/\\:/g; | |
124 | return $text; | |
125 | } | |
126 | ||
127 | # Configuration | |
128 | ||
129 | PVE::JSONSchema::register_format('pve-storage-monhost', \&parse_monhost); | |
130 | sub parse_monhost { | |
131 | my ($name, $noerr) = @_; | |
132 | ||
133 | if ($name !~ m/^[a-z][a-z0-9\-\_\.]*[a-z0-9]$/i) { | |
134 | return undef if $noerr; | |
135 | die "lvm name '$name' contains illegal characters\n"; | |
136 | } | |
137 | ||
138 | return $name; | |
139 | } | |
140 | ||
141 | sub type { | |
142 | return 'rbd'; | |
143 | } | |
144 | ||
145 | sub plugindata { | |
146 | return { | |
147 | content => [ {images => 1}, { images => 1 }], | |
148 | }; | |
149 | } | |
150 | ||
151 | sub properties { | |
152 | return { | |
153 | monhost => { | |
154 | description => "Monitors daemon ips.", | |
155 | type => 'string', | |
156 | }, | |
157 | pool => { | |
158 | description => "Pool.", | |
159 | type => 'string', | |
160 | }, | |
161 | username => { | |
162 | description => "RBD Id.", | |
163 | type => 'string', | |
164 | }, | |
165 | authsupported => { | |
166 | description => "Authsupported.", | |
167 | type => 'string', | |
168 | }, | |
169 | }; | |
170 | } | |
171 | ||
172 | sub options { | |
173 | return { | |
174 | nodes => { optional => 1 }, | |
175 | disable => { optional => 1 }, | |
176 | monhost => { fixed => 1 }, | |
177 | pool => { fixed => 1 }, | |
178 | username => { fixed => 1 }, | |
179 | authsupported => { fixed => 1 }, | |
180 | content => { optional => 1 }, | |
181 | }; | |
182 | } | |
183 | ||
184 | # Storage implementation | |
185 | ||
186 | sub parse_volname { | |
187 | my ($class, $volname) = @_; | |
188 | ||
189 | if ($volname =~ m/^((base-(\d+)-\S+)\/)?((base)?(vm)?-(\d+)-\S+)$/) { | |
190 | return ('images', $4, $7, $2, $3, $5); | |
191 | } | |
192 | ||
193 | die "unable to parse rbd volume name '$volname'\n"; | |
194 | } | |
195 | ||
196 | sub path { | |
197 | my ($class, $scfg, $volname, $storeid) = @_; | |
198 | ||
199 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
200 | ||
201 | my $monhost = addslashes($scfg->{monhost}); | |
202 | my $pool = $scfg->{pool}; | |
203 | my $username = $scfg->{username}; | |
204 | my $authsupported = addslashes($scfg->{authsupported}); | |
205 | ||
206 | my $path = "rbd:$pool/$name:id=$username:auth_supported=$authsupported:keyring=/etc/pve/priv/ceph/$storeid.keyring:mon_host=$monhost"; | |
207 | ||
208 | return ($path, $vmid, $vtype); | |
209 | } | |
210 | ||
211 | my $find_free_diskname = sub { | |
212 | my ($storeid, $scfg, $vmid) = @_; | |
213 | ||
214 | my $rbd = rbd_ls($scfg, $storeid); | |
215 | my $disk_ids = {}; | |
216 | my $dat = $rbd->{$scfg->{pool}}; | |
217 | ||
218 | foreach my $image (keys %$dat) { | |
219 | my $volname = $dat->{$image}->{name}; | |
220 | if ($volname =~ m/(vm|base)-$vmid-disk-(\d+)/){ | |
221 | $disk_ids->{$2} = 1; | |
222 | } | |
223 | } | |
224 | #fix: can we search in $rbd hash key with a regex to find (vm|base) ? | |
225 | for (my $i = 1; $i < 100; $i++) { | |
226 | if (!$disk_ids->{$i}) { | |
227 | return "vm-$vmid-disk-$i"; | |
228 | } | |
229 | } | |
230 | ||
231 | die "unable to allocate an image name for VM $vmid in storage '$storeid'\n"; | |
232 | }; | |
233 | ||
234 | sub create_base { | |
235 | my ($class, $storeid, $scfg, $volname) = @_; | |
236 | ||
237 | my $snap = '__base__'; | |
238 | ||
239 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) = | |
240 | $class->parse_volname($volname); | |
241 | ||
242 | die "create_base not possible with base image\n" if $isBase; | |
243 | ||
244 | my ($size, $parent, $format, undef) = rbd_volume_info($scfg, $storeid, $name); | |
245 | die "rbd volume info on '$name' failed\n" if !($size); | |
246 | ||
247 | die "rbd image must be at format V2" if $format ne "2"; | |
248 | ||
249 | die "volname '$volname' contains wrong information about parent $parent $basename\n" | |
250 | if $basename && (!$parent || $parent ne $basename."@".$snap); | |
251 | ||
252 | my $newname = $name; | |
253 | $newname =~ s/^vm-/base-/; | |
254 | ||
255 | my $newvolname = $basename ? "$basename/$newname" : "$newname"; | |
256 | ||
257 | my $cmd = &$rbd_cmd($scfg, $storeid, 'rename', $name, $newname); | |
258 | run_command($cmd, errmsg => "rbd rename $name' error", errfunc => sub {}); | |
259 | ||
260 | my $running = undef; #fixme : is create_base always offline ? | |
261 | ||
262 | $class->volume_snapshot($scfg, $storeid, $newname, $snap, $running); | |
263 | ||
264 | my (undef, undef, undef, $protected) = rbd_volume_info($scfg, $storeid, $newname, $snap); | |
265 | ||
266 | if (!$protected){ | |
267 | my $cmd = &$rbd_cmd($scfg, $storeid, 'snap', 'protect', $newname, '--snap', $snap); | |
268 | run_command($cmd, errmsg => "rbd protect $newname snap $snap' error", errfunc => sub {}); | |
269 | } | |
270 | ||
271 | return $newvolname; | |
272 | ||
273 | } | |
274 | ||
275 | sub clone_image { | |
276 | my ($class, $scfg, $storeid, $volname, $vmid) = @_; | |
277 | ||
278 | my $snap = '__base__'; | |
279 | ||
280 | my ($vtype, $basename, $basevmid, undef, undef, $isBase) = | |
281 | $class->parse_volname($volname); | |
282 | ||
283 | die "clone_image onyl works on base images\n" if !$isBase; | |
284 | ||
285 | my $name = &$find_free_diskname($storeid, $scfg, $vmid); | |
286 | ||
287 | warn "clone $volname: $basename to $name\n"; | |
288 | ||
289 | my $newvol = "$basename/$name"; | |
290 | ||
291 | my $cmd = &$rbd_cmd($scfg, $storeid, 'clone', $basename, '--snap', $snap, $name); | |
292 | run_command($cmd, errmsg => "rbd clone $basename' error", errfunc => sub {}); | |
293 | ||
294 | return $newvol; | |
295 | } | |
296 | ||
297 | sub alloc_image { | |
298 | my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_; | |
299 | ||
300 | ||
301 | die "illegal name '$name' - sould be 'vm-$vmid-*'\n" | |
302 | if $name && $name !~ m/^vm-$vmid-/; | |
303 | ||
304 | $name = &$find_free_diskname($storeid, $scfg, $vmid); | |
305 | ||
306 | my $cmd = &$rbd_cmd($scfg, $storeid, 'create', '--format' , 2, '--size', ($size/1024), $name); | |
307 | run_command($cmd, errmsg => "rbd create $name' error", errfunc => sub {}); | |
308 | ||
309 | return $name; | |
310 | } | |
311 | ||
312 | sub free_image { | |
313 | my ($class, $storeid, $scfg, $volname, $isBase) = @_; | |
314 | ||
315 | my ($vtype, $name, $vmid, undef, undef, undef) = | |
316 | $class->parse_volname($volname); | |
317 | ||
318 | if ($isBase) { | |
319 | my $snap = '__base__'; | |
320 | my (undef, undef, undef, $protected) = rbd_volume_info($scfg, $storeid, $name, $snap); | |
321 | if ($protected){ | |
322 | my $cmd = &$rbd_cmd($scfg, $storeid, 'snap', 'unprotect', $name, '--snap', $snap); | |
323 | run_command($cmd, errmsg => "rbd unprotect $name snap $snap' error", errfunc => sub {}); | |
324 | } | |
325 | } | |
326 | ||
327 | my $cmd = &$rbd_cmd($scfg, $storeid, 'snap', 'purge', $name); | |
328 | run_command($cmd, errmsg => "rbd snap purge $volname' error", outfunc => sub {}, errfunc => sub {}); | |
329 | ||
330 | $cmd = &$rbd_cmd($scfg, $storeid, 'rm', $name); | |
331 | run_command($cmd, errmsg => "rbd rm $volname' error", outfunc => sub {}, errfunc => sub {}); | |
332 | ||
333 | return undef; | |
334 | } | |
335 | ||
336 | sub list_images { | |
337 | my ($class, $storeid, $scfg, $vmid, $vollist, $cache) = @_; | |
338 | ||
339 | $cache->{rbd} = rbd_ls($scfg, $storeid) if !$cache->{rbd}; | |
340 | ||
341 | my $res = []; | |
342 | ||
343 | if (my $dat = $cache->{rbd}->{$scfg->{pool}}) { | |
344 | foreach my $image (keys %$dat) { | |
345 | ||
346 | my $volname = $dat->{$image}->{name}; | |
347 | ||
348 | my $volid = "$storeid:$volname"; | |
349 | ||
350 | my $owner = $dat->{$volname}->{vmid}; | |
351 | if ($vollist) { | |
352 | my $found = grep { $_ eq $volid } @$vollist; | |
353 | next if !$found; | |
354 | } else { | |
355 | next if defined ($vmid) && ($owner ne $vmid); | |
356 | } | |
357 | ||
358 | my $info = $dat->{$volname}; | |
359 | $info->{volid} = $volid; | |
360 | $info->{format} = 'raw'; | |
361 | ||
362 | push @$res, $info; | |
363 | } | |
364 | } | |
365 | ||
366 | return $res; | |
367 | } | |
368 | ||
369 | sub status { | |
370 | my ($class, $storeid, $scfg, $cache) = @_; | |
371 | ||
372 | my $cmd = &$rados_cmd($scfg, $storeid, 'df'); | |
373 | ||
374 | my $stats = {}; | |
375 | ||
376 | my $parser = sub { | |
377 | my $line = shift; | |
378 | if ($line =~ m/^\s+total\s(\S+)\s+(\d+)/) { | |
379 | $stats->{$1} = $2; | |
380 | } | |
381 | }; | |
382 | ||
383 | eval { | |
384 | run_command($cmd, errmsg => "rados error", errfunc => sub {}, outfunc => $parser); | |
385 | }; | |
386 | ||
387 | my $total = $stats->{space} ? $stats->{space}*1024 : 0; | |
388 | my $free = $stats->{avail} ? $stats->{avail}*1024 : 0; | |
389 | my $used = $stats->{used} ? $stats->{used}*1024: 0; | |
390 | my $active = 1; | |
391 | ||
392 | return ($total, $free, $used, $active); | |
393 | } | |
394 | ||
395 | sub activate_storage { | |
396 | my ($class, $storeid, $scfg, $cache) = @_; | |
397 | return 1; | |
398 | } | |
399 | ||
400 | sub deactivate_storage { | |
401 | my ($class, $storeid, $scfg, $cache) = @_; | |
402 | return 1; | |
403 | } | |
404 | ||
405 | sub activate_volume { | |
406 | my ($class, $storeid, $scfg, $volname, $exclusive, $cache) = @_; | |
407 | return 1; | |
408 | } | |
409 | ||
410 | sub deactivate_volume { | |
411 | my ($class, $storeid, $scfg, $volname, $exclusive, $cache) = @_; | |
412 | return 1; | |
413 | } | |
414 | ||
415 | sub volume_size_info { | |
416 | my ($class, $scfg, $storeid, $volname, $timeout) = @_; | |
417 | ||
418 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
419 | my ($size, undef) = rbd_volume_info($scfg, $storeid, $name); | |
420 | return $size; | |
421 | } | |
422 | ||
423 | sub volume_resize { | |
424 | my ($class, $scfg, $storeid, $volname, $size, $running) = @_; | |
425 | ||
426 | return 1 if $running; | |
427 | ||
428 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
429 | ||
430 | my $cmd = &$rbd_cmd($scfg, $storeid, 'resize', '--size', ($size/1024/1024), $name); | |
431 | run_command($cmd, errmsg => "rbd resize $volname' error", errfunc => sub {}); | |
432 | return undef; | |
433 | } | |
434 | ||
435 | sub volume_snapshot { | |
436 | my ($class, $scfg, $storeid, $volname, $snap, $running) = @_; | |
437 | ||
438 | return 1 if $running; | |
439 | ||
440 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
441 | ||
442 | my $cmd = &$rbd_cmd($scfg, $storeid, 'snap', 'create', '--snap', $snap, $name); | |
443 | run_command($cmd, errmsg => "rbd snapshot $volname' error", errfunc => sub {}); | |
444 | return undef; | |
445 | } | |
446 | ||
447 | sub volume_snapshot_rollback { | |
448 | my ($class, $scfg, $storeid, $volname, $snap) = @_; | |
449 | ||
450 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
451 | ||
452 | my $cmd = &$rbd_cmd($scfg, $storeid, 'snap', 'rollback', '--snap', $snap, $name); | |
453 | run_command($cmd, errmsg => "rbd snapshot $volname to $snap' error", errfunc => sub {}); | |
454 | } | |
455 | ||
456 | sub volume_snapshot_delete { | |
457 | my ($class, $scfg, $storeid, $volname, $snap, $running) = @_; | |
458 | ||
459 | return 1 if $running; | |
460 | ||
461 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
462 | ||
463 | my $cmd = &$rbd_cmd($scfg, $storeid, 'snap', 'rm', '--snap', $snap, $name); | |
464 | run_command($cmd, errmsg => "rbd snapshot $volname' error", errfunc => sub {}); | |
465 | return undef; | |
466 | } | |
467 | ||
468 | sub volume_has_feature { | |
469 | my ($class, $scfg, $feature, $storeid, $volname, $snapname, $running) = @_; | |
470 | ||
471 | my $features = { | |
472 | snapshot => { current => 1, snap => 1}, | |
473 | clone => { base => 1}, | |
474 | copy => { base => 1, current => 1, snap => 1}, | |
475 | }; | |
476 | ||
477 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) = | |
478 | $class->parse_volname($volname); | |
479 | ||
480 | my $key = undef; | |
481 | if($snapname){ | |
482 | $key = $snapname | |
483 | }else{ | |
484 | $key = $isBase ? 'base' : 'current'; | |
485 | } | |
486 | return 1 if $features->{$feature}->{$key}; | |
487 | ||
488 | return undef; | |
489 | } | |
490 | ||
491 | 1; |