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Commit | Line | Data |
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5bb8e010 DM |
1 | package PVE::Storage::ZFSDirPlugin; |
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::Plugin; | |
9 | ||
10 | ||
11 | use base qw(PVE::Storage::Plugin); | |
12 | ||
5bb8e010 DM |
13 | sub type { |
14 | return 'zfsdir'; | |
15 | } | |
16 | ||
17 | sub plugindata { | |
18 | return { | |
19 | content => [ { images => 1, rootdir => 1, vztmpl => 1, iso => 1, backup => 1}, | |
20 | { images => 1 }], | |
21 | }; | |
22 | } | |
23 | ||
7730694e DM |
24 | sub properties { |
25 | return { | |
26 | blocksize => { | |
27 | description => "block size", | |
28 | type => 'string', | |
29 | }, | |
30 | sparse => { | |
31 | description => "use sparse volumes", | |
32 | type => 'boolean', | |
33 | }, | |
34 | }; | |
35 | } | |
36 | ||
5bb8e010 DM |
37 | sub options { |
38 | return { | |
39 | path => { fixed => 1 }, | |
7730694e DM |
40 | pool => { fixed => 1 }, |
41 | blocksize => { optional => 1 }, | |
42 | sparse => { optional => 1 }, | |
43 | nodes => { optional => 1 }, | |
5bb8e010 DM |
44 | disable => { optional => 1 }, |
45 | maxfiles => { optional => 1 }, | |
46 | content => { optional => 1 }, | |
47 | }; | |
48 | } | |
49 | ||
7730694e DM |
50 | # static zfs helper methods |
51 | ||
060ef890 DM |
52 | sub zfs_parse_size { |
53 | my ($text) = @_; | |
54 | ||
55 | return 0 if !$text; | |
56 | ||
57 | if ($text =~ m/^(\d+(\.\d+)?)([TGMK])?$/) { | |
58 | ||
59 | my ($size, $reminder, $unit) = ($1, $2, $3); | |
60 | ||
61 | if ($unit) { | |
62 | if ($unit eq 'K') { | |
63 | $size *= 1024; | |
64 | } elsif ($unit eq 'M') { | |
65 | $size *= 1024*1024; | |
66 | } elsif ($unit eq 'G') { | |
67 | $size *= 1024*1024*1024; | |
68 | } elsif ($unit eq 'T') { | |
69 | $size *= 1024*1024*1024*1024; | |
70 | } else { | |
71 | die "got unknown zfs size unit '$unit'\n"; | |
72 | } | |
73 | } | |
74 | ||
75 | if ($reminder) { | |
76 | $size = ceil($size); | |
77 | } | |
78 | ||
79 | return $size; | |
80 | ||
81 | } | |
82 | ||
83 | warn "unable to parse zfs size '$text'\n"; | |
84 | ||
85 | return 0; | |
86 | } | |
87 | ||
7730694e DM |
88 | sub zfs_parse_zvol_list { |
89 | my ($text) = @_; | |
90 | ||
91 | my $list = (); | |
92 | ||
93 | return $list if !$text; | |
94 | ||
95 | my @lines = split /\n/, $text; | |
96 | foreach my $line (@lines) { | |
97 | if ($line =~ /^(.+)\s+([a-zA-Z0-9\.]+|\-)\s+(.+)$/) { | |
98 | my $zvol = {}; | |
99 | my @parts = split /\//, $1; | |
100 | my $name = pop @parts; | |
101 | my $pool = join('/', @parts); | |
102 | ||
103 | if ($pool !~ /^rpool$/) { | |
104 | next unless $name =~ m!^(\w+)-(\d+)-(\w+)-(\d+)$!; | |
105 | $name = $pool . '/' . $name; | |
106 | } else { | |
107 | next; | |
108 | } | |
109 | ||
110 | $zvol->{pool} = $pool; | |
111 | $zvol->{name} = $name; | |
112 | $zvol->{size} = zfs_parse_size($2); | |
113 | if ($3 !~ /^-$/) { | |
114 | $zvol->{origin} = $3; | |
115 | } | |
116 | push @$list, $zvol; | |
117 | } | |
118 | } | |
119 | ||
120 | return $list; | |
121 | } | |
122 | ||
cc80ed9c WL |
123 | sub parse_volname { |
124 | my ($class, $volname) = @_; | |
125 | ||
126 | if ($volname =~ m/^(((base|vm)-(\d+)-\S+)\/)?((base)?(vm)?-(\d+)-\S+)$/) { | |
127 | return ('images', $5, $8, $2, $4, $6); | |
128 | } | |
129 | ||
130 | die "unable to parse zfs volume name '$volname'\n"; | |
131 | } | |
132 | ||
7730694e DM |
133 | # virtual zfs methods (subclass can overwrite them) |
134 | ||
f3e632d0 WL |
135 | sub path { |
136 | my ($class, $scfg, $volname) = @_; | |
137 | ||
138 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
139 | ||
140 | my $path = ''; | |
141 | ||
142 | if($vtype eq "images"){ | |
143 | $path = "/dev/zvol/$scfg->{pool}/$volname"; | |
144 | } else { | |
145 | die "$vtype is not allowed in ZFSDir!"; | |
146 | } | |
147 | ||
148 | return ($path, $vmid, $vtype); | |
149 | } | |
150 | ||
7730694e DM |
151 | sub zfs_request { |
152 | my ($class, $scfg, $timeout, $method, @params) = @_; | |
153 | ||
154 | $timeout = 5 if !$timeout; | |
155 | ||
156 | my $cmd = []; | |
157 | ||
158 | if ($method eq 'zpool_list') { | |
159 | push @$cmd = 'zpool', 'list'; | |
160 | } else { | |
161 | push @$cmd, 'zfs', $method; | |
162 | } | |
163 | ||
164 | push @$cmd, @params; | |
165 | ||
166 | my $msg = ''; | |
167 | ||
168 | my $output = sub { | |
169 | my $line = shift; | |
170 | $msg .= "$line\n"; | |
171 | }; | |
172 | ||
173 | run_command($cmd, outfunc => $output, timeout => $timeout); | |
174 | ||
175 | return $msg; | |
176 | } | |
177 | ||
b3ba95e4 WL |
178 | sub alloc_image { |
179 | my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_; | |
180 | ||
181 | die "unsupported format '$fmt'" if $fmt ne 'raw'; | |
182 | ||
183 | die "illegal name '$name' - sould be 'vm-$vmid-*'\n" | |
184 | if $name && $name !~ m/^vm-$vmid-/; | |
185 | ||
186 | $name = $class->zfs_find_free_diskname($storeid, $scfg, $vmid) if !$name; | |
187 | ||
188 | $class->zfs_create_zvol($scfg, $name, $size); | |
189 | ||
190 | return $name; | |
191 | } | |
192 | ||
e9565df5 WL |
193 | sub free_image { |
194 | my ($class, $storeid, $scfg, $volname, $isBase) = @_; | |
195 | ||
196 | my (undef, $name, undef) = $class->parse_volname($volname); | |
197 | ||
198 | $class->zfs_delete_zvol($scfg, $name); | |
199 | ||
200 | return undef; | |
201 | } | |
202 | ||
ca04180f WL |
203 | sub list_images { |
204 | my ($class, $storeid, $scfg, $vmid, $vollist, $cache) = @_; | |
205 | ||
206 | $cache->{zfs} = $class->zfs_list_zvol($scfg) if !$cache->{zfs}; | |
207 | my $zfspool = $scfg->{pool}; | |
208 | my $res = []; | |
209 | ||
210 | if (my $dat = $cache->{zfs}->{$zfspool}) { | |
211 | ||
212 | foreach my $image (keys %$dat) { | |
213 | ||
214 | my $volname = $dat->{$image}->{name}; | |
215 | my $parent = $dat->{$image}->{parent}; | |
216 | ||
217 | my $volid = undef; | |
218 | if ($parent && $parent =~ m/^(\S+)@(\S+)$/) { | |
219 | my ($basename) = ($1); | |
220 | $volid = "$storeid:$basename/$volname"; | |
221 | } else { | |
222 | $volid = "$storeid:$volname"; | |
223 | } | |
224 | ||
225 | my $owner = $dat->{$volname}->{vmid}; | |
226 | if ($vollist) { | |
227 | my $found = grep { $_ eq $volid } @$vollist; | |
228 | next if !$found; | |
229 | } else { | |
230 | next if defined ($vmid) && ($owner ne $vmid); | |
231 | } | |
232 | ||
233 | my $info = $dat->{$volname}; | |
234 | $info->{volid} = $volid; | |
235 | push @$res, $info; | |
236 | } | |
237 | } | |
238 | ||
239 | return $res; | |
240 | } | |
241 | ||
7730694e DM |
242 | sub zfs_get_pool_stats { |
243 | my ($class, $scfg) = @_; | |
244 | ||
245 | my $available = 0; | |
246 | my $used = 0; | |
247 | ||
248 | my $text = $class->zfs_request($scfg, undef, 'get', '-o', 'value', '-Hp', | |
249 | 'available,used', $scfg->{pool}); | |
250 | ||
251 | my @lines = split /\n/, $text; | |
252 | ||
253 | if($lines[0] =~ /^(\d+)$/) { | |
254 | $available = $1; | |
255 | } | |
256 | ||
257 | if($lines[1] =~ /^(\d+)$/) { | |
258 | $used = $1; | |
259 | } | |
260 | ||
261 | return ($available, $used); | |
262 | } | |
263 | ||
264 | sub zfs_get_zvol_size { | |
265 | my ($class, $scfg, $zvol) = @_; | |
266 | ||
267 | my $text = $class->zfs_request($scfg, undef, 'get', '-Hp', 'volsize', "$scfg->{pool}/$zvol"); | |
268 | ||
269 | if ($text =~ /volsize\s(\d+)/) { | |
270 | return $1; | |
271 | } | |
272 | ||
273 | die "Could not get zvol size"; | |
274 | } | |
275 | ||
276 | sub zfs_create_zvol { | |
277 | my ($class, $scfg, $zvol, $size) = @_; | |
278 | ||
279 | my $cmd = ['create']; | |
280 | ||
281 | push @$cmd, '-s' if $scfg->{sparse}; | |
282 | ||
283 | push @$cmd, '-b', $scfg->{blocksize} if $scfg->{blocksize}; | |
284 | ||
285 | push @$cmd, '-V', "${size}k", "$scfg->{pool}/$zvol"; | |
286 | ||
287 | $class->zfs_request($scfg, undef, @$cmd); | |
288 | } | |
289 | ||
290 | sub zfs_delete_zvol { | |
291 | my ($class, $scfg, $zvol) = @_; | |
292 | ||
293 | $class->zfs_request($scfg, undef, 'destroy', '-r', "$scfg->{pool}/$zvol"); | |
294 | } | |
295 | ||
296 | sub zfs_list_zvol { | |
297 | my ($class, $scfg) = @_; | |
298 | ||
299 | my $text = $class->zfs_request($scfg, 10, 'list', '-o', 'name,volsize,origin', '-t', 'volume', '-Hr'); | |
300 | my $zvols = zfs_parse_zvol_list($text); | |
301 | return undef if !$zvols; | |
302 | ||
303 | my $list = (); | |
304 | foreach my $zvol (@$zvols) { | |
305 | my @values = split('/', $zvol->{name}); | |
306 | ||
307 | my $image = pop @values; | |
308 | my $pool = join('/', @values); | |
309 | ||
310 | next if $image !~ m/^((vm|base)-(\d+)-\S+)$/; | |
311 | my $owner = $3; | |
312 | ||
313 | my $parent = $zvol->{origin}; | |
314 | if($zvol->{origin} && $zvol->{origin} =~ m/^$scfg->{pool}\/(\S+)$/){ | |
315 | $parent = $1; | |
316 | } | |
317 | ||
318 | $list->{$pool}->{$image} = { | |
319 | name => $image, | |
320 | size => $zvol->{size}, | |
321 | parent => $parent, | |
322 | format => 'raw', | |
323 | vmid => $owner | |
324 | }; | |
325 | } | |
326 | ||
327 | return $list; | |
328 | } | |
329 | ||
330 | sub zfs_find_free_diskname { | |
331 | my ($class, $storeid, $scfg, $vmid) = @_; | |
332 | ||
333 | my $name = undef; | |
334 | my $volumes = $class->zfs_list_zvol($scfg); | |
335 | ||
336 | my $disk_ids = {}; | |
337 | my $dat = $volumes->{$scfg->{pool}}; | |
338 | ||
339 | foreach my $image (keys %$dat) { | |
340 | my $volname = $dat->{$image}->{name}; | |
341 | if ($volname =~ m/(vm|base)-$vmid-disk-(\d+)/){ | |
342 | $disk_ids->{$2} = 1; | |
343 | } | |
344 | } | |
345 | ||
346 | for (my $i = 1; $i < 100; $i++) { | |
347 | if (!$disk_ids->{$i}) { | |
348 | return "vm-$vmid-disk-$i"; | |
349 | } | |
350 | } | |
351 | ||
352 | die "unable to allocate an image name for VM $vmid in storage '$storeid'\n"; | |
353 | } | |
354 | ||
b5e5f7e3 DM |
355 | sub status { |
356 | my ($class, $storeid, $scfg, $cache) = @_; | |
357 | ||
358 | my $total = 0; | |
359 | my $free = 0; | |
360 | my $used = 0; | |
361 | my $active = 0; | |
362 | ||
363 | eval { | |
364 | ($free, $used) = $class->zfs_get_pool_stats($scfg); | |
365 | $active = 1; | |
366 | $total = $free + $used; | |
367 | }; | |
368 | warn $@ if $@; | |
369 | ||
370 | return ($total, $free, $used, $active); | |
371 | } | |
372 | ||
373 | sub volume_size_info { | |
374 | my ($class, $scfg, $storeid, $volname, $timeout) = @_; | |
375 | ||
376 | return $class->zfs_get_zvol_size($scfg, $volname); | |
377 | } | |
378 | ||
379 | sub volume_snapshot { | |
380 | my ($class, $scfg, $storeid, $volname, $snap, $running) = @_; | |
381 | ||
382 | $class->zfs_request($scfg, undef, 'snapshot', "$scfg->{pool}/$volname\@$snap"); | |
383 | } | |
384 | ||
385 | sub volume_snapshot_delete { | |
386 | my ($class, $scfg, $storeid, $volname, $snap, $running) = @_; | |
387 | ||
388 | $class->zfs_request($scfg, undef, 'destroy', "$scfg->{pool}/$volname\@$snap"); | |
389 | } | |
390 | ||
5bb8e010 DM |
391 | |
392 | 1; |