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