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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 | my $rbd_cmd = sub { | |
13 | my ($scfg, $storeid, $op, @options) = @_; | |
14 | ||
15 | my $monhost = $scfg->{monhost}; | |
16 | $monhost =~ s/;/,/g; | |
17 | ||
18 | my $cmd = ['/usr/bin/rbd', '-p', $scfg->{pool}, '-m', $monhost, '-n', | |
19 | "client.$scfg->{username}", | |
20 | '--keyring', "/etc/pve/priv/ceph/${storeid}.keyring", | |
21 | '--auth_supported', $scfg->{authsupported}, $op]; | |
22 | ||
23 | push @$cmd, @options if scalar(@options); | |
24 | ||
25 | return $cmd; | |
26 | }; | |
27 | ||
28 | my $rados_cmd = sub { | |
29 | my ($scfg, $storeid, $op, @options) = @_; | |
30 | ||
31 | my $monhost = $scfg->{monhost}; | |
32 | $monhost =~ s/;/,/g; | |
33 | ||
34 | my $cmd = ['/usr/bin/rados', '-p', $scfg->{pool}, '-m', $monhost, '-n', | |
35 | "client.$scfg->{username}", | |
36 | '--keyring', "/etc/pve/priv/ceph/${storeid}.keyring", | |
37 | '--auth_supported', $scfg->{authsupported}, $op]; | |
38 | ||
39 | push @$cmd, @options if scalar(@options); | |
40 | ||
41 | return $cmd; | |
42 | }; | |
43 | ||
44 | sub rbd_ls { | |
45 | my ($scfg, $storeid) = @_; | |
46 | ||
47 | my $cmd = &$rbd_cmd($scfg, $storeid, 'ls', '-l'); | |
48 | ||
49 | my $list = {}; | |
50 | ||
51 | my $parser = sub { | |
52 | my $line = shift; | |
53 | ||
54 | if ($line =~ m/^(vm-(\d+)-disk-\d+)\s+(\d+)M\s((\S+)\/(vm-\d+-\S+@\S+))?/) { | |
55 | my ($image, $owner, $size, $parent) = ($1, $2, $3, $6); | |
56 | ||
57 | $list->{$scfg->{pool}}->{$image} = { | |
58 | name => $image, | |
59 | size => $size*1024*1024, | |
60 | parent => $parent, | |
61 | vmid => $owner | |
62 | }; | |
63 | } | |
64 | }; | |
65 | ||
66 | eval { | |
67 | run_command($cmd, errmsg => "rbd error", errfunc => sub {}, outfunc => $parser); | |
68 | }; | |
69 | my $err = $@; | |
70 | ||
71 | die $err if $err && $err !~ m/doesn't contain rbd images/ ; | |
72 | ||
73 | return $list; | |
74 | } | |
75 | ||
76 | sub rbd_volume_info { | |
77 | my ($scfg, $storeid, $volname) = @_; | |
78 | ||
79 | my $cmd = &$rbd_cmd($scfg, $storeid, 'info', $volname); | |
80 | my $size = undef; | |
81 | my $parent = undef; | |
82 | ||
83 | my $parser = sub { | |
84 | my $line = shift; | |
85 | ||
86 | if ($line =~ m/size (\d+) MB in (\d+) objects/) { | |
87 | $size = $1; | |
88 | } elsif ($line =~ m/parent:\s(\S+)\/(\S+)/) { | |
89 | $parent = $2; | |
90 | } | |
91 | }; | |
92 | ||
93 | run_command($cmd, errmsg => "rbd error", errfunc => sub {}, outfunc => $parser); | |
94 | ||
95 | $size = $size*1024*1024 if $size; | |
96 | ||
97 | return ($size, $parent); | |
98 | } | |
99 | ||
100 | sub addslashes { | |
101 | my $text = shift; | |
102 | $text =~ s/;/\\;/g; | |
103 | $text =~ s/:/\\:/g; | |
104 | return $text; | |
105 | } | |
106 | ||
107 | # Configuration | |
108 | ||
109 | PVE::JSONSchema::register_format('pve-storage-monhost', \&parse_monhost); | |
110 | sub parse_monhost { | |
111 | my ($name, $noerr) = @_; | |
112 | ||
113 | if ($name !~ m/^[a-z][a-z0-9\-\_\.]*[a-z0-9]$/i) { | |
114 | return undef if $noerr; | |
115 | die "lvm name '$name' contains illegal characters\n"; | |
116 | } | |
117 | ||
118 | return $name; | |
119 | } | |
120 | ||
121 | sub type { | |
122 | return 'rbd'; | |
123 | } | |
124 | ||
125 | sub plugindata { | |
126 | return { | |
127 | content => [ {images => 1}, { images => 1 }], | |
128 | }; | |
129 | } | |
130 | ||
131 | sub properties { | |
132 | return { | |
133 | monhost => { | |
134 | description => "Monitors daemon ips.", | |
135 | type => 'string', | |
136 | }, | |
137 | pool => { | |
138 | description => "Pool.", | |
139 | type => 'string', | |
140 | }, | |
141 | username => { | |
142 | description => "RBD Id.", | |
143 | type => 'string', | |
144 | }, | |
145 | authsupported => { | |
146 | description => "Authsupported.", | |
147 | type => 'string', | |
148 | }, | |
149 | }; | |
150 | } | |
151 | ||
152 | sub options { | |
153 | return { | |
154 | nodes => { optional => 1 }, | |
155 | disable => { optional => 1 }, | |
156 | monhost => { fixed => 1 }, | |
157 | pool => { fixed => 1 }, | |
158 | username => { fixed => 1 }, | |
159 | authsupported => { fixed => 1 }, | |
160 | content => { optional => 1 }, | |
161 | }; | |
162 | } | |
163 | ||
164 | # Storage implementation | |
165 | ||
166 | sub parse_volname { | |
167 | my ($class, $volname) = @_; | |
168 | ||
169 | if ($volname =~ m/^(vm-(\d+)-\S+)$/) { | |
170 | return ('images', $1, $2); | |
171 | } | |
172 | ||
173 | die "unable to parse rbd volume name '$volname'\n"; | |
174 | } | |
175 | ||
176 | sub path { | |
177 | my ($class, $scfg, $volname, $storeid) = @_; | |
178 | ||
179 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
180 | ||
181 | my $monhost = addslashes($scfg->{monhost}); | |
182 | my $pool = $scfg->{pool}; | |
183 | my $username = $scfg->{username}; | |
184 | my $authsupported = addslashes($scfg->{authsupported}); | |
185 | ||
186 | my $path = "rbd:$pool/$name:id=$username:auth_supported=$authsupported:keyring=/etc/pve/priv/ceph/$storeid.keyring:mon_host=$monhost"; | |
187 | ||
188 | return ($path, $vmid, $vtype); | |
189 | } | |
190 | ||
191 | sub alloc_image { | |
192 | my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_; | |
193 | ||
194 | ||
195 | die "illegal name '$name' - sould be 'vm-$vmid-*'\n" | |
196 | if $name && $name !~ m/^vm-$vmid-/; | |
197 | ||
198 | if (!$name) { | |
199 | my $rdb = rbd_ls($scfg, $storeid); | |
200 | ||
201 | for (my $i = 1; $i < 100; $i++) { | |
202 | my $tn = "vm-$vmid-disk-$i"; | |
203 | if (!defined ($rdb->{$scfg->{pool}}->{$tn})) { | |
204 | $name = $tn; | |
205 | last; | |
206 | } | |
207 | } | |
208 | } | |
209 | ||
210 | die "unable to allocate an image name for VM $vmid in storage '$storeid'\n" | |
211 | if !$name; | |
212 | ||
213 | my $cmd = &$rbd_cmd($scfg, $storeid, 'create', '--format' , 2, '--size', ($size/1024), $name); | |
214 | run_command($cmd, errmsg => "rbd create $name' error", errfunc => sub {}); | |
215 | ||
216 | return $name; | |
217 | } | |
218 | ||
219 | sub free_image { | |
220 | my ($class, $storeid, $scfg, $volname) = @_; | |
221 | ||
222 | my $cmd = &$rbd_cmd($scfg, $storeid, 'snap', 'purge', $volname); | |
223 | run_command($cmd, errmsg => "rbd snap purge $volname' error", outfunc => sub {}, errfunc => sub {}); | |
224 | ||
225 | $cmd = &$rbd_cmd($scfg, $storeid, 'rm', $volname); | |
226 | run_command($cmd, errmsg => "rbd rm $volname' error", outfunc => sub {}, errfunc => sub {}); | |
227 | ||
228 | return undef; | |
229 | } | |
230 | ||
231 | sub list_images { | |
232 | my ($class, $storeid, $scfg, $vmid, $vollist, $cache) = @_; | |
233 | ||
234 | $cache->{rbd} = rbd_ls($scfg, $storeid) if !$cache->{rbd}; | |
235 | ||
236 | my $res = []; | |
237 | ||
238 | if (my $dat = $cache->{rbd}->{$scfg->{pool}}) { | |
239 | foreach my $image (keys %$dat) { | |
240 | ||
241 | my $volname = $dat->{$image}->{name}; | |
242 | ||
243 | my $volid = "$storeid:$volname"; | |
244 | ||
245 | my $owner = $dat->{$volname}->{vmid}; | |
246 | if ($vollist) { | |
247 | my $found = grep { $_ eq $volid } @$vollist; | |
248 | next if !$found; | |
249 | } else { | |
250 | next if defined ($vmid) && ($owner ne $vmid); | |
251 | } | |
252 | ||
253 | my $info = $dat->{$volname}; | |
254 | $info->{volid} = $volid; | |
255 | $info->{format} = 'raw'; | |
256 | ||
257 | push @$res, $info; | |
258 | } | |
259 | } | |
260 | ||
261 | return $res; | |
262 | } | |
263 | ||
264 | sub status { | |
265 | my ($class, $storeid, $scfg, $cache) = @_; | |
266 | ||
267 | my $cmd = &$rados_cmd($scfg, $storeid, 'df'); | |
268 | ||
269 | my $stats = {}; | |
270 | ||
271 | my $parser = sub { | |
272 | my $line = shift; | |
273 | if ($line =~ m/^\s+total\s(\S+)\s+(\d+)/) { | |
274 | $stats->{$1} = $2; | |
275 | } | |
276 | }; | |
277 | ||
278 | eval { | |
279 | run_command($cmd, errmsg => "rados error", errfunc => sub {}, outfunc => $parser); | |
280 | }; | |
281 | ||
282 | my $total = $stats->{space} ? $stats->{space}*1024 : 0; | |
283 | my $free = $stats->{avail} ? $stats->{avail}*1024 : 0; | |
284 | my $used = $stats->{used} ? $stats->{used}*1024: 0; | |
285 | my $active = 1; | |
286 | ||
287 | return ($total, $free, $used, $active); | |
288 | } | |
289 | ||
290 | sub activate_storage { | |
291 | my ($class, $storeid, $scfg, $cache) = @_; | |
292 | return 1; | |
293 | } | |
294 | ||
295 | sub deactivate_storage { | |
296 | my ($class, $storeid, $scfg, $cache) = @_; | |
297 | return 1; | |
298 | } | |
299 | ||
300 | sub activate_volume { | |
301 | my ($class, $storeid, $scfg, $volname, $exclusive, $cache) = @_; | |
302 | return 1; | |
303 | } | |
304 | ||
305 | sub deactivate_volume { | |
306 | my ($class, $storeid, $scfg, $volname, $exclusive, $cache) = @_; | |
307 | return 1; | |
308 | } | |
309 | ||
310 | sub volume_size_info { | |
311 | my ($class, $scfg, $storeid, $volname, $timeout) = @_; | |
312 | ||
313 | my ($size, undef) = rbd_volume_info($scfg, $storeid, $volname); | |
314 | return $size; | |
315 | } | |
316 | ||
317 | sub volume_resize { | |
318 | my ($class, $scfg, $storeid, $volname, $size, $running) = @_; | |
319 | ||
320 | return 1 if $running; | |
321 | ||
322 | my $cmd = &$rbd_cmd($scfg, $storeid, 'resize', '--size', ($size/1024/1024), $volname); | |
323 | run_command($cmd, errmsg => "rbd resize $volname' error", errfunc => sub {}); | |
324 | return undef; | |
325 | } | |
326 | ||
327 | sub volume_snapshot { | |
328 | my ($class, $scfg, $storeid, $volname, $snap, $running) = @_; | |
329 | ||
330 | return 1 if $running; | |
331 | ||
332 | my $cmd = &$rbd_cmd($scfg, $storeid, 'snap', 'create', '--snap', $snap, $volname); | |
333 | run_command($cmd, errmsg => "rbd snapshot $volname' error", errfunc => sub {}); | |
334 | return undef; | |
335 | } | |
336 | ||
337 | sub volume_snapshot_rollback { | |
338 | my ($class, $scfg, $storeid, $volname, $snap) = @_; | |
339 | ||
340 | my $cmd = &$rbd_cmd($scfg, $storeid, 'snap', 'rollback', '--snap', $snap, $volname); | |
341 | run_command($cmd, errmsg => "rbd snapshot $volname to $snap' error", errfunc => sub {}); | |
342 | } | |
343 | ||
344 | sub volume_snapshot_delete { | |
345 | my ($class, $scfg, $storeid, $volname, $snap, $running) = @_; | |
346 | ||
347 | return 1 if $running; | |
348 | ||
349 | my $cmd = &$rbd_cmd($scfg, $storeid, 'snap', 'rm', '--snap', $snap, $volname); | |
350 | run_command($cmd, errmsg => "rbd snapshot $volname' error", errfunc => sub {}); | |
351 | return undef; | |
352 | } | |
353 | ||
354 | sub volume_has_feature { | |
355 | my ($class, $scfg, $feature, $storeid, $volname, $snapname, $running) = @_; | |
356 | ||
357 | my $features = { | |
358 | snapshot => { current => 1, snap => 1}, | |
359 | clone => { snap => 1}, | |
360 | }; | |
361 | ||
362 | my $snap = $snapname ? 'snap' : 'current'; | |
363 | return 1 if $features->{$feature}->{$snap}; | |
364 | ||
365 | return undef; | |
366 | } | |
367 | ||
368 | 1; |