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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 $add_pool_to_disk = sub { | |
21 | my ($scfg, $disk) = @_; | |
22 | ||
23 | my $pool = $scfg->{pool} ? $scfg->{pool} : 'rbd'; | |
24 | ||
25 | return "$pool/$disk"; | |
26 | }; | |
27 | ||
28 | my $rbd_cmd = sub { | |
29 | my ($scfg, $storeid, $op, @options) = @_; | |
30 | ||
31 | my $monhost = $scfg->{monhost}; | |
32 | $monhost =~ s/;/,/g; | |
33 | ||
34 | my $keyring = "/etc/pve/priv/ceph/${storeid}.keyring"; | |
35 | my $pool = $scfg->{pool} ? $scfg->{pool} : 'rbd'; | |
36 | my $username = $scfg->{username} ? $scfg->{username} : 'admin'; | |
37 | ||
38 | my $cmd = ['/usr/bin/rbd', '-p', $pool, '-m', $monhost]; | |
39 | ||
40 | if(-e $keyring){ | |
41 | push @$cmd, '-n', "client.$username"; | |
42 | push @$cmd, '--keyring', $keyring; | |
43 | push @$cmd, '--auth_supported', 'cephx'; | |
44 | }else{ | |
45 | push @$cmd, '--auth_supported', 'none'; | |
46 | } | |
47 | ||
48 | push @$cmd, $op; | |
49 | ||
50 | push @$cmd, @options if scalar(@options); | |
51 | ||
52 | return $cmd; | |
53 | }; | |
54 | ||
55 | my $rados_cmd = sub { | |
56 | my ($scfg, $storeid, $op, @options) = @_; | |
57 | ||
58 | my $monhost = $scfg->{monhost}; | |
59 | $monhost =~ s/;/,/g; | |
60 | ||
61 | my $keyring = "/etc/pve/priv/ceph/${storeid}.keyring"; | |
62 | my $pool = $scfg->{pool} ? $scfg->{pool} : 'rbd'; | |
63 | my $username = $scfg->{username} ? $scfg->{username} : 'admin'; | |
64 | ||
65 | my $cmd = ['/usr/bin/rados', '-p', $pool, '-m', $monhost]; | |
66 | ||
67 | if(-e $keyring){ | |
68 | push @$cmd, '-n', "client.$username"; | |
69 | push @$cmd, '--keyring', $keyring; | |
70 | push @$cmd, '--auth_supported', 'cephx'; | |
71 | }else{ | |
72 | push @$cmd, '--auth_supported', 'none'; | |
73 | } | |
74 | ||
75 | push @$cmd, $op; | |
76 | ||
77 | push @$cmd, @options if scalar(@options); | |
78 | ||
79 | return $cmd; | |
80 | }; | |
81 | ||
82 | sub run_rbd_command { | |
83 | my ($cmd, %args) = @_; | |
84 | ||
85 | my $lasterr; | |
86 | my $errmsg = $args{errmsg} . ": " || ""; | |
87 | if (!exists($args{errfunc})) { | |
88 | # ' error: 2014-02-06 11:51:59.839135 7f09f94d0760 -1 librbd: snap_unprotect: can't unprotect; | |
89 | # at least 1 child(ren) in pool cephstor1 | |
90 | $args{errfunc} = sub { | |
91 | my $line = shift; | |
92 | if ($line =~ m/^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}\.\d+ [0-9a-f]+ [\-\d]+ librbd: (.*)$/) { | |
93 | $lasterr = "$1\n"; | |
94 | } else { | |
95 | $lasterr = $line; | |
96 | } | |
97 | print STDERR $lasterr; | |
98 | *STDERR->flush(); | |
99 | }; | |
100 | } | |
101 | ||
102 | eval { run_command($cmd, %args); }; | |
103 | if (my $err = $@) { | |
104 | die $errmsg . $lasterr if length($lasterr); | |
105 | die $err; | |
106 | } | |
107 | ||
108 | return undef; | |
109 | } | |
110 | ||
111 | sub rbd_ls { | |
112 | my ($scfg, $storeid) = @_; | |
113 | ||
114 | my $cmd = &$rbd_cmd($scfg, $storeid, 'ls', '-l'); | |
115 | my $pool = $scfg->{pool} ? $scfg->{pool} : 'rbd'; | |
116 | ||
117 | my $list = {}; | |
118 | ||
119 | my $parser = sub { | |
120 | my $line = shift; | |
121 | ||
122 | if ($line =~ m/^((vm|base)-(\d+)-disk-\d+)\s+(\d+)(M|G|T)\s((\S+)\/((vm|base)-\d+-\S+@\S+))?/) { | |
123 | my ($image, $owner, $size, $unit, $parent) = ($1, $3, $4, $5, $8); | |
124 | ||
125 | $list->{$pool}->{$image} = { | |
126 | name => $image, | |
127 | size => $size*rbd_unittobytes()->{$unit}, | |
128 | parent => $parent, | |
129 | vmid => $owner | |
130 | }; | |
131 | } | |
132 | }; | |
133 | ||
134 | eval { | |
135 | run_rbd_command($cmd, errmsg => "rbd error", errfunc => sub {}, outfunc => $parser); | |
136 | }; | |
137 | my $err = $@; | |
138 | ||
139 | die $err if $err && $err !~ m/doesn't contain rbd images/ ; | |
140 | ||
141 | return $list; | |
142 | } | |
143 | ||
144 | sub rbd_volume_info { | |
145 | my ($scfg, $storeid, $volname, $snap) = @_; | |
146 | ||
147 | my $cmd = undef; | |
148 | ||
149 | if($snap){ | |
150 | $cmd = &$rbd_cmd($scfg, $storeid, 'info', $volname, '--snap', $snap); | |
151 | }else{ | |
152 | $cmd = &$rbd_cmd($scfg, $storeid, 'info', $volname); | |
153 | } | |
154 | ||
155 | my $size = undef; | |
156 | my $parent = undef; | |
157 | my $format = undef; | |
158 | my $protected = undef; | |
159 | ||
160 | my $parser = sub { | |
161 | my $line = shift; | |
162 | ||
163 | if ($line =~ m/size (\d+) (M|G|T)B in (\d+) objects/) { | |
164 | $size = $1 * rbd_unittobytes()->{$2} if ($1); | |
165 | } elsif ($line =~ m/parent:\s(\S+)\/(\S+)/) { | |
166 | $parent = $2; | |
167 | } elsif ($line =~ m/format:\s(\d+)/) { | |
168 | $format = $1; | |
169 | } elsif ($line =~ m/protected:\s(\S+)/) { | |
170 | $protected = 1 if $1 eq "True"; | |
171 | } | |
172 | ||
173 | }; | |
174 | ||
175 | run_rbd_command($cmd, errmsg => "rbd error", errfunc => sub {}, outfunc => $parser); | |
176 | ||
177 | return ($size, $parent, $format, $protected); | |
178 | } | |
179 | ||
180 | # Configuration | |
181 | ||
182 | PVE::JSONSchema::register_format('pve-storage-monhost', \&parse_monhost); | |
183 | sub parse_monhost { | |
184 | my ($name, $noerr) = @_; | |
185 | ||
186 | if ($name !~ m/^[a-z][a-z0-9\-\_\.]*[a-z0-9]$/i) { | |
187 | return undef if $noerr; | |
188 | die "lvm name '$name' contains illegal characters\n"; | |
189 | } | |
190 | ||
191 | return $name; | |
192 | } | |
193 | ||
194 | sub type { | |
195 | return 'rbd'; | |
196 | } | |
197 | ||
198 | sub plugindata { | |
199 | return { | |
200 | content => [ {images => 1}, { images => 1 }], | |
201 | }; | |
202 | } | |
203 | ||
204 | sub properties { | |
205 | return { | |
206 | monhost => { | |
207 | description => "Monitors daemon ips.", | |
208 | type => 'string', | |
209 | }, | |
210 | pool => { | |
211 | description => "Pool.", | |
212 | type => 'string', | |
213 | }, | |
214 | username => { | |
215 | description => "RBD Id.", | |
216 | type => 'string', | |
217 | }, | |
218 | authsupported => { | |
219 | description => "Authsupported.", | |
220 | type => 'string', | |
221 | }, | |
222 | }; | |
223 | } | |
224 | ||
225 | sub options { | |
226 | return { | |
227 | nodes => { optional => 1 }, | |
228 | disable => { optional => 1 }, | |
229 | monhost => { fixed => 1 }, | |
230 | pool => { optional => 1 }, | |
231 | username => { optional => 1 }, | |
232 | content => { optional => 1 }, | |
233 | }; | |
234 | } | |
235 | ||
236 | # Storage implementation | |
237 | ||
238 | sub parse_volname { | |
239 | my ($class, $volname) = @_; | |
240 | ||
241 | if ($volname =~ m/^((base-(\d+)-\S+)\/)?((base)?(vm)?-(\d+)-\S+)$/) { | |
242 | return ('images', $4, $7, $2, $3, $5); | |
243 | } | |
244 | ||
245 | die "unable to parse rbd volume name '$volname'\n"; | |
246 | } | |
247 | ||
248 | sub path { | |
249 | my ($class, $scfg, $volname, $storeid, $snapname) = @_; | |
250 | ||
251 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
252 | $name .= '@'.$snapname if $snapname; | |
253 | ||
254 | my $monhost = $scfg->{monhost}; | |
255 | $monhost =~ s/:/\\:/g; | |
256 | ||
257 | my $pool = $scfg->{pool} ? $scfg->{pool} : 'rbd'; | |
258 | my $username = $scfg->{username} ? $scfg->{username} : 'admin'; | |
259 | ||
260 | my $path = "rbd:$pool/$name:mon_host=$monhost"; | |
261 | my $keyring = "/etc/pve/priv/ceph/${storeid}.keyring"; | |
262 | ||
263 | if(-e $keyring ){ | |
264 | $path .= ":id=$username:auth_supported=cephx:keyring=$keyring"; | |
265 | }else{ | |
266 | $path .= ":auth_supported=none"; | |
267 | } | |
268 | ||
269 | return ($path, $vmid, $vtype); | |
270 | } | |
271 | ||
272 | my $find_free_diskname = sub { | |
273 | my ($storeid, $scfg, $vmid) = @_; | |
274 | ||
275 | my $rbd = rbd_ls($scfg, $storeid); | |
276 | my $pool = $scfg->{pool} ? $scfg->{pool} : 'rbd'; | |
277 | my $disk_ids = {}; | |
278 | my $dat = $rbd->{$pool}; | |
279 | ||
280 | foreach my $image (keys %$dat) { | |
281 | my $volname = $dat->{$image}->{name}; | |
282 | if ($volname =~ m/(vm|base)-$vmid-disk-(\d+)/){ | |
283 | $disk_ids->{$2} = 1; | |
284 | } | |
285 | } | |
286 | #fix: can we search in $rbd hash key with a regex to find (vm|base) ? | |
287 | for (my $i = 1; $i < 100; $i++) { | |
288 | if (!$disk_ids->{$i}) { | |
289 | return "vm-$vmid-disk-$i"; | |
290 | } | |
291 | } | |
292 | ||
293 | die "unable to allocate an image name for VM $vmid in storage '$storeid'\n"; | |
294 | }; | |
295 | ||
296 | sub create_base { | |
297 | my ($class, $storeid, $scfg, $volname) = @_; | |
298 | ||
299 | my $snap = '__base__'; | |
300 | ||
301 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) = | |
302 | $class->parse_volname($volname); | |
303 | ||
304 | die "create_base not possible with base image\n" if $isBase; | |
305 | ||
306 | my ($size, $parent, $format, undef) = rbd_volume_info($scfg, $storeid, $name); | |
307 | die "rbd volume info on '$name' failed\n" if !($size); | |
308 | ||
309 | die "rbd image must be at format V2" if $format ne "2"; | |
310 | ||
311 | die "volname '$volname' contains wrong information about parent $parent $basename\n" | |
312 | if $basename && (!$parent || $parent ne $basename."@".$snap); | |
313 | ||
314 | my $newname = $name; | |
315 | $newname =~ s/^vm-/base-/; | |
316 | ||
317 | my $newvolname = $basename ? "$basename/$newname" : "$newname"; | |
318 | ||
319 | my $cmd = &$rbd_cmd($scfg, $storeid, 'rename', &$add_pool_to_disk($scfg, $name), &$add_pool_to_disk($scfg, $newname)); | |
320 | run_rbd_command($cmd, errmsg => "rbd rename '$name' error"); | |
321 | ||
322 | my $running = undef; #fixme : is create_base always offline ? | |
323 | ||
324 | $class->volume_snapshot($scfg, $storeid, $newname, $snap, $running); | |
325 | ||
326 | my (undef, undef, undef, $protected) = rbd_volume_info($scfg, $storeid, $newname, $snap); | |
327 | ||
328 | if (!$protected){ | |
329 | my $cmd = &$rbd_cmd($scfg, $storeid, 'snap', 'protect', $newname, '--snap', $snap); | |
330 | run_rbd_command($cmd, errmsg => "rbd protect $newname snap '$snap' error"); | |
331 | } | |
332 | ||
333 | return $newvolname; | |
334 | ||
335 | } | |
336 | ||
337 | sub clone_image { | |
338 | my ($class, $scfg, $storeid, $volname, $vmid, $snapname) = @_; | |
339 | ||
340 | my $snap = '__base__'; | |
341 | $snap = $snapname if length $snapname; | |
342 | ||
343 | my ($vtype, $basename, $basevmid, undef, undef, $isBase) = | |
344 | $class->parse_volname($volname); | |
345 | ||
346 | die "$volname is not a base image and snapname is not provided\n" | |
347 | if !$isBase && !length($snapname); | |
348 | ||
349 | my $name = &$find_free_diskname($storeid, $scfg, $vmid); | |
350 | ||
351 | warn "clone $volname: $basename snapname $snap to $name\n"; | |
352 | ||
353 | if (length($snapname)) { | |
354 | my (undef, undef, undef, $protected) = rbd_volume_info($scfg, $storeid, $volname, $snapname); | |
355 | ||
356 | if (!$protected) { | |
357 | my $cmd = &$rbd_cmd($scfg, $storeid, 'snap', 'protect', $volname, '--snap', $snapname); | |
358 | run_rbd_command($cmd, errmsg => "rbd protect $volname snap $snapname error"); | |
359 | } | |
360 | } | |
361 | ||
362 | my $newvol = "$basename/$name"; | |
363 | $newvol = $name if length($snapname); | |
364 | ||
365 | my $cmd = &$rbd_cmd($scfg, $storeid, 'clone', &$add_pool_to_disk($scfg, $basename), | |
366 | '--snap', $snap, &$add_pool_to_disk($scfg, $name)); | |
367 | ||
368 | run_rbd_command($cmd, errmsg => "rbd clone '$basename' error"); | |
369 | ||
370 | return $newvol; | |
371 | } | |
372 | ||
373 | sub alloc_image { | |
374 | my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_; | |
375 | ||
376 | ||
377 | die "illegal name '$name' - sould be 'vm-$vmid-*'\n" | |
378 | if $name && $name !~ m/^vm-$vmid-/; | |
379 | ||
380 | $name = &$find_free_diskname($storeid, $scfg, $vmid) if !$name; | |
381 | ||
382 | my $cmd = &$rbd_cmd($scfg, $storeid, 'create', '--image-format' , 2, '--size', int(($size+1023)/1024), $name); | |
383 | run_rbd_command($cmd, errmsg => "rbd create $name' error"); | |
384 | ||
385 | return $name; | |
386 | } | |
387 | ||
388 | sub free_image { | |
389 | my ($class, $storeid, $scfg, $volname, $isBase) = @_; | |
390 | ||
391 | my ($vtype, $name, $vmid, undef, undef, undef) = | |
392 | $class->parse_volname($volname); | |
393 | ||
394 | if ($isBase) { | |
395 | my $snap = '__base__'; | |
396 | my (undef, undef, undef, $protected) = rbd_volume_info($scfg, $storeid, $name, $snap); | |
397 | if ($protected){ | |
398 | my $cmd = &$rbd_cmd($scfg, $storeid, 'snap', 'unprotect', $name, '--snap', $snap); | |
399 | run_rbd_command($cmd, errmsg => "rbd unprotect $name snap '$snap' error"); | |
400 | } | |
401 | } | |
402 | ||
403 | my $cmd = &$rbd_cmd($scfg, $storeid, 'snap', 'purge', $name); | |
404 | run_rbd_command($cmd, errmsg => "rbd snap purge '$volname' error"); | |
405 | ||
406 | $cmd = &$rbd_cmd($scfg, $storeid, 'rm', $name); | |
407 | run_rbd_command($cmd, errmsg => "rbd rm '$volname' error"); | |
408 | ||
409 | return undef; | |
410 | } | |
411 | ||
412 | sub list_images { | |
413 | my ($class, $storeid, $scfg, $vmid, $vollist, $cache) = @_; | |
414 | ||
415 | $cache->{rbd} = rbd_ls($scfg, $storeid) if !$cache->{rbd}; | |
416 | my $pool = $scfg->{pool} ? $scfg->{pool} : 'rbd'; | |
417 | ||
418 | my $res = []; | |
419 | ||
420 | if (my $dat = $cache->{rbd}->{$pool}) { | |
421 | foreach my $image (keys %$dat) { | |
422 | ||
423 | my $volname = $dat->{$image}->{name}; | |
424 | ||
425 | my $volid = "$storeid:$volname"; | |
426 | ||
427 | my $owner = $dat->{$volname}->{vmid}; | |
428 | if ($vollist) { | |
429 | my $found = grep { $_ eq $volid } @$vollist; | |
430 | next if !$found; | |
431 | } else { | |
432 | next if defined ($vmid) && ($owner ne $vmid); | |
433 | } | |
434 | ||
435 | my $info = $dat->{$volname}; | |
436 | $info->{volid} = $volid; | |
437 | $info->{format} = 'raw'; | |
438 | ||
439 | push @$res, $info; | |
440 | } | |
441 | } | |
442 | ||
443 | return $res; | |
444 | } | |
445 | ||
446 | sub status { | |
447 | my ($class, $storeid, $scfg, $cache) = @_; | |
448 | ||
449 | my $cmd = &$rados_cmd($scfg, $storeid, 'df'); | |
450 | ||
451 | my $stats = {}; | |
452 | ||
453 | my $parser = sub { | |
454 | my $line = shift; | |
455 | if ($line =~ m/^\s+total\s(\S+)\s+(\d+)/) { | |
456 | $stats->{$1} = $2; | |
457 | } | |
458 | }; | |
459 | ||
460 | eval { | |
461 | run_rbd_command($cmd, errmsg => "rados error", errfunc => sub {}, outfunc => $parser); | |
462 | }; | |
463 | ||
464 | my $total = $stats->{space} ? $stats->{space}*1024 : 0; | |
465 | my $free = $stats->{avail} ? $stats->{avail}*1024 : 0; | |
466 | my $used = $stats->{used} ? $stats->{used}*1024: 0; | |
467 | my $active = 1; | |
468 | ||
469 | return ($total, $free, $used, $active); | |
470 | } | |
471 | ||
472 | sub activate_storage { | |
473 | my ($class, $storeid, $scfg, $cache) = @_; | |
474 | return 1; | |
475 | } | |
476 | ||
477 | sub deactivate_storage { | |
478 | my ($class, $storeid, $scfg, $cache) = @_; | |
479 | return 1; | |
480 | } | |
481 | ||
482 | sub activate_volume { | |
483 | my ($class, $storeid, $scfg, $volname, $exclusive, $cache) = @_; | |
484 | return 1; | |
485 | } | |
486 | ||
487 | sub deactivate_volume { | |
488 | my ($class, $storeid, $scfg, $volname, $exclusive, $cache) = @_; | |
489 | return 1; | |
490 | } | |
491 | ||
492 | sub volume_size_info { | |
493 | my ($class, $scfg, $storeid, $volname, $timeout) = @_; | |
494 | ||
495 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
496 | my ($size, undef) = rbd_volume_info($scfg, $storeid, $name); | |
497 | return $size; | |
498 | } | |
499 | ||
500 | sub volume_resize { | |
501 | my ($class, $scfg, $storeid, $volname, $size, $running) = @_; | |
502 | ||
503 | return 1 if $running; | |
504 | ||
505 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
506 | ||
507 | my $cmd = &$rbd_cmd($scfg, $storeid, 'resize', '--size', ($size/1024/1024), $name); | |
508 | run_rbd_command($cmd, errmsg => "rbd resize '$volname' error"); | |
509 | return undef; | |
510 | } | |
511 | ||
512 | sub volume_snapshot { | |
513 | my ($class, $scfg, $storeid, $volname, $snap, $running) = @_; | |
514 | ||
515 | return 1 if $running; | |
516 | ||
517 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
518 | ||
519 | my $cmd = &$rbd_cmd($scfg, $storeid, 'snap', 'create', '--snap', $snap, $name); | |
520 | run_rbd_command($cmd, errmsg => "rbd snapshot '$volname' error"); | |
521 | return undef; | |
522 | } | |
523 | ||
524 | sub volume_snapshot_rollback { | |
525 | my ($class, $scfg, $storeid, $volname, $snap) = @_; | |
526 | ||
527 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
528 | ||
529 | my $cmd = &$rbd_cmd($scfg, $storeid, 'snap', 'rollback', '--snap', $snap, $name); | |
530 | run_rbd_command($cmd, errmsg => "rbd snapshot $volname to '$snap' error"); | |
531 | } | |
532 | ||
533 | sub volume_snapshot_delete { | |
534 | my ($class, $scfg, $storeid, $volname, $snap, $running) = @_; | |
535 | ||
536 | return 1 if $running; | |
537 | ||
538 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
539 | ||
540 | my (undef, undef, undef, $protected) = rbd_volume_info($scfg, $storeid, $name, $snap); | |
541 | if ($protected){ | |
542 | my $cmd = &$rbd_cmd($scfg, $storeid, 'snap', 'unprotect', $name, '--snap', $snap); | |
543 | run_rbd_command($cmd, errmsg => "rbd unprotect $name snap '$snap' error"); | |
544 | } | |
545 | ||
546 | my $cmd = &$rbd_cmd($scfg, $storeid, 'snap', 'rm', '--snap', $snap, $name); | |
547 | ||
548 | run_rbd_command($cmd, errmsg => "rbd snapshot '$volname' error"); | |
549 | ||
550 | return undef; | |
551 | } | |
552 | ||
553 | sub volume_has_feature { | |
554 | my ($class, $scfg, $feature, $storeid, $volname, $snapname, $running) = @_; | |
555 | ||
556 | my $features = { | |
557 | snapshot => { current => 1, snap => 1}, | |
558 | clone => { base => 1, snap => 1}, | |
559 | template => { current => 1}, | |
560 | copy => { base => 1, current => 1, snap => 1}, | |
561 | }; | |
562 | ||
563 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) = | |
564 | $class->parse_volname($volname); | |
565 | ||
566 | my $key = undef; | |
567 | if($snapname){ | |
568 | $key = 'snap'; | |
569 | }else{ | |
570 | $key = $isBase ? 'base' : 'current'; | |
571 | } | |
572 | return 1 if $features->{$feature}->{$key}; | |
573 | ||
574 | return undef; | |
575 | } | |
576 | ||
577 | 1; |