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fe000966 DM |
1 | package PVE::Cluster; |
2 | ||
3 | use strict; | |
7181f622 | 4 | use warnings; |
57d8355e | 5 | |
57d8355e | 6 | use Encode; |
fe000966 | 7 | use File::stat qw(); |
462c16b7 | 8 | use File::Path qw(make_path); |
57d8355e | 9 | use JSON; |
26784563 | 10 | use Net::SSLeay; |
c5204e14 | 11 | use POSIX qw(ENOENT); |
57d8355e TL |
12 | use Socket; |
13 | use Storable qw(dclone); | |
57d8355e | 14 | |
c92b7716 | 15 | use PVE::Certificate; |
fe000966 DM |
16 | use PVE::INotify; |
17 | use PVE::IPCC; | |
d0ad18e8 | 18 | use PVE::JSONSchema; |
54d487bf | 19 | use PVE::Network; |
57d8355e TL |
20 | use PVE::SafeSyslog; |
21 | use PVE::Tools qw(run_command); | |
22 | ||
95c44445 | 23 | use PVE::Cluster::IPCConst; |
57d8355e | 24 | |
fe000966 DM |
25 | use base 'Exporter'; |
26 | ||
27 | our @EXPORT_OK = qw( | |
28 | cfs_read_file | |
29 | cfs_write_file | |
30 | cfs_register_file | |
31 | cfs_lock_file); | |
32 | ||
fe000966 DM |
33 | # x509 certificate utils |
34 | ||
35 | my $basedir = "/etc/pve"; | |
36 | my $authdir = "$basedir/priv"; | |
37 | my $lockdir = "/etc/pve/priv/lock"; | |
38 | ||
68491de3 | 39 | # cfs and corosync files |
e02bdaae TL |
40 | my $dbfile = "/var/lib/pve-cluster/config.db"; |
41 | my $dbbackupdir = "/var/lib/pve-cluster/backup"; | |
fe000966 | 42 | |
34180e03 TL |
43 | # this is just a readonly copy, the relevant one is in status.c from pmxcfs |
44 | # observed files are the one we can get directly through IPCC, they are cached | |
45 | # using a computed version and only those can be used by the cfs_*_file methods | |
fe000966 | 46 | my $observed = { |
e1735a61 | 47 | 'vzdump.cron' => 1, |
1fdf150e | 48 | 'jobs.cfg' => 1, |
fe000966 DM |
49 | 'storage.cfg' => 1, |
50 | 'datacenter.cfg' => 1, | |
f6de131a | 51 | 'replication.cfg' => 1, |
cafc7309 DM |
52 | 'corosync.conf' => 1, |
53 | 'corosync.conf.new' => 1, | |
fe000966 DM |
54 | 'user.cfg' => 1, |
55 | 'domains.cfg' => 1, | |
56 | 'priv/shadow.cfg' => 1, | |
454c3a2c | 57 | 'priv/tfa.cfg' => 1, |
7dac5e0e | 58 | 'priv/token.cfg' => 1, |
8b84a18a | 59 | 'priv/acme/plugins.cfg' => 1, |
fc28c2f8 | 60 | 'priv/ipam.db' => 1, |
fe000966 | 61 | '/qemu-server/' => 1, |
f71eee41 | 62 | '/openvz/' => 1, |
7f66b436 | 63 | '/lxc/' => 1, |
5a5417e6 DM |
64 | 'ha/crm_commands' => 1, |
65 | 'ha/manager_status' => 1, | |
66 | 'ha/resources.cfg' => 1, | |
67 | 'ha/groups.cfg' => 1, | |
e9af3eb7 | 68 | 'ha/fence.cfg' => 1, |
9d4f69ff | 69 | 'status.cfg' => 1, |
22e2ed76 | 70 | 'ceph.conf' => 1, |
1bb7107a | 71 | 'sdn/vnets.cfg' => 1, |
1bb7107a | 72 | 'sdn/zones.cfg' => 1, |
1bb7107a | 73 | 'sdn/controllers.cfg' => 1, |
c20823f8 | 74 | 'sdn/subnets.cfg' => 1, |
be1aa34b | 75 | 'sdn/ipams.cfg' => 1, |
9d3ea5ef | 76 | 'sdn/dns.cfg' => 1, |
a3d44df8 | 77 | 'sdn/.running-config' => 1, |
9bb0fbe9 | 78 | 'virtual-guest/cpu-models.conf' => 1, |
fe000966 DM |
79 | }; |
80 | ||
462c16b7 TL |
81 | sub prepare_observed_file_basedirs { |
82 | ||
393742f6 | 83 | if (!check_cfs_is_mounted(1)) { |
462c16b7 TL |
84 | warn "pmxcfs isn't mounted (/etc/pve), chickening out..\n"; |
85 | return; | |
86 | } | |
87 | ||
88 | for my $f (sort keys %$observed) { | |
89 | next if $f !~ m!^(.*)/[^/]+$!; | |
90 | my $dir = "$basedir/$1"; | |
91 | next if -e $dir; # can also be a link, so just use -e xist check | |
92 | print "creating directory '$dir' for observerd files\n"; | |
93 | make_path($dir); | |
94 | } | |
95 | } | |
96 | ||
c5204e14 FG |
97 | sub base_dir { |
98 | return $basedir; | |
99 | } | |
fe000966 | 100 | |
c5204e14 FG |
101 | sub auth_dir { |
102 | return $authdir; | |
fe000966 DM |
103 | } |
104 | ||
105 | sub check_cfs_quorum { | |
01dddfb9 DM |
106 | my ($noerr) = @_; |
107 | ||
fe000966 DM |
108 | # note: -w filename always return 1 for root, so wee need |
109 | # to use File::lstat here | |
110 | my $st = File::stat::lstat("$basedir/local"); | |
01dddfb9 DM |
111 | my $quorate = ($st && (($st->mode & 0200) != 0)); |
112 | ||
113 | die "cluster not ready - no quorum?\n" if !$quorate && !$noerr; | |
114 | ||
115 | return $quorate; | |
fe000966 DM |
116 | } |
117 | ||
118 | sub check_cfs_is_mounted { | |
119 | my ($noerr) = @_; | |
120 | ||
121 | my $res = -l "$basedir/local"; | |
122 | ||
123 | die "pve configuration filesystem not mounted\n" | |
124 | if !$res && !$noerr; | |
125 | ||
126 | return $res; | |
127 | } | |
128 | ||
fe000966 DM |
129 | my $versions = {}; |
130 | my $vmlist = {}; | |
131 | my $clinfo = {}; | |
132 | ||
133 | my $ipcc_send_rec = sub { | |
134 | my ($msgid, $data) = @_; | |
135 | ||
136 | my $res = PVE::IPCC::ipcc_send_rec($msgid, $data); | |
137 | ||
dd856b4d | 138 | die "ipcc_send_rec[$msgid] failed: $!\n" if !defined($res) && ($! != 0); |
fe000966 DM |
139 | |
140 | return $res; | |
141 | }; | |
142 | ||
143 | my $ipcc_send_rec_json = sub { | |
144 | my ($msgid, $data) = @_; | |
145 | ||
146 | my $res = PVE::IPCC::ipcc_send_rec($msgid, $data); | |
147 | ||
dd856b4d | 148 | die "ipcc_send_rec[$msgid] failed: $!\n" if !defined($res) && ($! != 0); |
fe000966 DM |
149 | |
150 | return decode_json($res); | |
151 | }; | |
152 | ||
153 | my $ipcc_get_config = sub { | |
154 | my ($path) = @_; | |
155 | ||
156 | my $bindata = pack "Z*", $path; | |
95c44445 | 157 | my $res = PVE::IPCC::ipcc_send_rec(CFS_IPC_GET_CONFIG, $bindata); |
2db32d95 | 158 | if (!defined($res)) { |
7bac9ca5 WB |
159 | if ($! != 0) { |
160 | return undef if $! == ENOENT; | |
161 | die "$!\n"; | |
162 | } | |
2db32d95 DM |
163 | return ''; |
164 | } | |
165 | ||
166 | return $res; | |
fe000966 DM |
167 | }; |
168 | ||
169 | my $ipcc_get_status = sub { | |
170 | my ($name, $nodename) = @_; | |
171 | ||
172 | my $bindata = pack "Z[256]Z[256]", $name, ($nodename || ""); | |
95c44445 | 173 | return PVE::IPCC::ipcc_send_rec(CFS_IPC_GET_STATUS, $bindata); |
fe000966 DM |
174 | }; |
175 | ||
71cc17bc DC |
176 | my $ipcc_remove_status = sub { |
177 | my ($name) = @_; | |
0adf0c5a TL |
178 | # we just omit the data payload, pmxcfs takes this as hint and removes this |
179 | # key from the status hashtable | |
71cc17bc DC |
180 | my $bindata = pack "Z[256]", $name; |
181 | return &$ipcc_send_rec(CFS_IPC_SET_STATUS, $bindata); | |
182 | }; | |
183 | ||
fe000966 DM |
184 | my $ipcc_update_status = sub { |
185 | my ($name, $data) = @_; | |
186 | ||
187 | my $raw = ref($data) ? encode_json($data) : $data; | |
188 | # update status | |
189 | my $bindata = pack "Z[256]Z*", $name, $raw; | |
190 | ||
95c44445 | 191 | return &$ipcc_send_rec(CFS_IPC_SET_STATUS, $bindata); |
fe000966 DM |
192 | }; |
193 | ||
194 | my $ipcc_log = sub { | |
195 | my ($priority, $ident, $tag, $msg) = @_; | |
196 | ||
197 | my $bindata = pack "CCCZ*Z*Z*", $priority, bytes::length($ident) + 1, | |
198 | bytes::length($tag) + 1, $ident, $tag, $msg; | |
199 | ||
95c44445 | 200 | return &$ipcc_send_rec(CFS_IPC_LOG_CLUSTER_MSG, $bindata); |
fe000966 DM |
201 | }; |
202 | ||
203 | my $ipcc_get_cluster_log = sub { | |
204 | my ($user, $max) = @_; | |
205 | ||
206 | $max = 0 if !defined($max); | |
207 | ||
208 | my $bindata = pack "VVVVZ*", $max, 0, 0, 0, ($user || ""); | |
95c44445 | 209 | return &$ipcc_send_rec(CFS_IPC_GET_CLUSTER_LOG, $bindata); |
fe000966 DM |
210 | }; |
211 | ||
7dac5e0e FG |
212 | my $ipcc_verify_token = sub { |
213 | my ($full_token) = @_; | |
214 | ||
215 | my $bindata = pack "Z*", $full_token; | |
216 | my $res = PVE::IPCC::ipcc_send_rec(CFS_IPC_VERIFY_TOKEN, $bindata); | |
217 | ||
218 | return 1 if $! == 0; | |
219 | return 0 if $! == ENOENT; | |
220 | ||
221 | die "$!\n"; | |
222 | }; | |
223 | ||
fe000966 DM |
224 | my $ccache = {}; |
225 | ||
226 | sub cfs_update { | |
686801e4 | 227 | my ($fail) = @_; |
fe000966 | 228 | eval { |
95c44445 | 229 | my $res = &$ipcc_send_rec_json(CFS_IPC_GET_FS_VERSION); |
fe000966 DM |
230 | die "no starttime\n" if !$res->{starttime}; |
231 | ||
232 | if (!$res->{starttime} || !$versions->{starttime} || | |
233 | $res->{starttime} != $versions->{starttime}) { | |
234 | #print "detected changed starttime\n"; | |
235 | $vmlist = {}; | |
236 | $clinfo = {}; | |
237 | $ccache = {}; | |
238 | } | |
239 | ||
240 | $versions = $res; | |
241 | }; | |
242 | my $err = $@; | |
243 | if ($err) { | |
244 | $versions = {}; | |
245 | $vmlist = {}; | |
246 | $clinfo = {}; | |
247 | $ccache = {}; | |
686801e4 | 248 | die $err if $fail; |
fe000966 DM |
249 | warn $err; |
250 | } | |
251 | ||
252 | eval { | |
253 | if (!$clinfo->{version} || $clinfo->{version} != $versions->{clinfo}) { | |
254 | #warn "detected new clinfo\n"; | |
95c44445 | 255 | $clinfo = &$ipcc_send_rec_json(CFS_IPC_GET_CLUSTER_INFO); |
fe000966 DM |
256 | } |
257 | }; | |
258 | $err = $@; | |
259 | if ($err) { | |
260 | $clinfo = {}; | |
686801e4 | 261 | die $err if $fail; |
fe000966 DM |
262 | warn $err; |
263 | } | |
264 | ||
265 | eval { | |
266 | if (!$vmlist->{version} || $vmlist->{version} != $versions->{vmlist}) { | |
267 | #warn "detected new vmlist1\n"; | |
95c44445 | 268 | $vmlist = &$ipcc_send_rec_json(CFS_IPC_GET_GUEST_LIST); |
fe000966 DM |
269 | } |
270 | }; | |
271 | $err = $@; | |
272 | if ($err) { | |
273 | $vmlist = {}; | |
686801e4 | 274 | die $err if $fail; |
fe000966 DM |
275 | warn $err; |
276 | } | |
277 | } | |
278 | ||
279 | sub get_vmlist { | |
280 | return $vmlist; | |
281 | } | |
282 | ||
283 | sub get_clinfo { | |
284 | return $clinfo; | |
285 | } | |
286 | ||
9ddd4ae9 DM |
287 | sub get_members { |
288 | return $clinfo->{nodelist}; | |
289 | } | |
290 | ||
fe000966 | 291 | sub get_nodelist { |
fe000966 DM |
292 | my $nodelist = $clinfo->{nodelist}; |
293 | ||
fe000966 DM |
294 | my $nodename = PVE::INotify::nodename(); |
295 | ||
296 | if (!$nodelist || !$nodelist->{$nodename}) { | |
297 | return [ $nodename ]; | |
298 | } | |
299 | ||
300 | return [ keys %$nodelist ]; | |
301 | } | |
302 | ||
0adf0c5a TL |
303 | # only stored in a in-memory hashtable inside pmxcfs, local data is gone after |
304 | # a restart (of pmxcfs or the node), peer data is still available then | |
305 | # best used for status data, like running (ceph) services, package versions, ... | |
a26b18e1 DC |
306 | sub broadcast_node_kv { |
307 | my ($key, $data) = @_; | |
308 | ||
309 | if (!defined($data)) { | |
4d04cad0 | 310 | eval { $ipcc_remove_status->("kv/$key") }; |
a26b18e1 DC |
311 | } else { |
312 | die "cannot send a reference\n" if ref($data); | |
313 | my $size = length($data); | |
0adf0c5a | 314 | die "data for '$key' too big\n" if $size >= (32 * 1024); # limit from pmxfs |
a26b18e1 | 315 | |
4d04cad0 | 316 | eval { $ipcc_update_status->("kv/$key", $data) }; |
a26b18e1 | 317 | } |
a26b18e1 DC |
318 | warn $@ if $@; |
319 | } | |
320 | ||
0adf0c5a | 321 | # nodename is optional |
a26b18e1 DC |
322 | sub get_node_kv { |
323 | my ($key, $nodename) = @_; | |
324 | ||
325 | my $res = {}; | |
326 | my $get_node_data = sub { | |
327 | my ($node) = @_; | |
328 | my $raw = $ipcc_get_status->("kv/$key", $node); | |
14000cd7 | 329 | $res->{$node} = unpack("Z*", $raw) if $raw; |
a26b18e1 DC |
330 | }; |
331 | ||
332 | if ($nodename) { | |
333 | $get_node_data->($nodename); | |
334 | } else { | |
4d04cad0 | 335 | for my $node (get_nodelist()->@*) { |
a26b18e1 DC |
336 | $get_node_data->($node); |
337 | } | |
338 | } | |
339 | ||
340 | return $res; | |
341 | } | |
342 | ||
cf1b19d9 TL |
343 | # property: a config property you want to get, e.g., this is perfect to get |
344 | # the 'lock' entry of a guest _fast_ (>100 faster than manual parsing here) | |
8a93eeae | 345 | # vmid: optional, if a valid is passed we only check that one, else return all |
cf1b19d9 TL |
346 | # NOTE: does *not* searches snapshot and PENDING entries sections! |
347 | sub get_guest_config_property { | |
348 | my ($property, $vmid) = @_; | |
349 | ||
350 | die "property is required" if !defined($property); | |
351 | ||
352 | my $bindata = pack "VZ*", $vmid // 0, $property; | |
353 | my $res = $ipcc_send_rec_json->(CFS_IPC_GET_GUEST_CONFIG_PROPERTY, $bindata); | |
354 | ||
355 | return $res; | |
356 | } | |
357 | ||
1b36b6b1 | 358 | # $data must be a chronological descending ordered array of tasks |
fe000966 DM |
359 | sub broadcast_tasklist { |
360 | my ($data) = @_; | |
361 | ||
1b36b6b1 TL |
362 | # the serialized list may not get bigger than 32kb (CFS_MAX_STATUS_SIZE |
363 | # from pmxcfs) - drop older items until we satisfy this constraint | |
364 | my $size = length(encode_json($data)); | |
365 | while ($size >= (32 * 1024)) { | |
366 | pop @$data; | |
367 | $size = length(encode_json($data)); | |
368 | } | |
369 | ||
fe000966 DM |
370 | eval { |
371 | &$ipcc_update_status("tasklist", $data); | |
372 | }; | |
373 | ||
374 | warn $@ if $@; | |
375 | } | |
376 | ||
377 | my $tasklistcache = {}; | |
378 | ||
379 | sub get_tasklist { | |
380 | my ($nodename) = @_; | |
381 | ||
382 | my $kvstore = $versions->{kvstore} || {}; | |
383 | ||
384 | my $nodelist = get_nodelist(); | |
385 | ||
386 | my $res = []; | |
387 | foreach my $node (@$nodelist) { | |
388 | next if $nodename && ($nodename ne $node); | |
389 | eval { | |
390 | my $ver = $kvstore->{$node}->{tasklist} if $kvstore->{$node}; | |
1f1c5c43 TL |
391 | my $cache = $tasklistcache->{$node}; |
392 | if (!$cache || !$ver || !$cache->{version} || ($cache->{version} != $ver)) { | |
393 | my $tasks = []; | |
394 | if (my $raw = $ipcc_get_status->("tasklist", $node)) { | |
aea0f5a6 TL |
395 | my $json_str = unpack("Z*", $raw); |
396 | $tasks = decode_json($json_str); | |
1f1c5c43 TL |
397 | } |
398 | push @$res, @$tasks; | |
399 | $tasklistcache->{$node} = { | |
400 | data => $tasks, | |
fe000966 DM |
401 | version => $ver, |
402 | }; | |
1f1c5c43 TL |
403 | } elsif ($cache && $cache->{data}) { |
404 | push @$res, $cache->{data}->@*; | |
fe000966 DM |
405 | } |
406 | }; | |
407 | my $err = $@; | |
408 | syslog('err', $err) if $err; | |
409 | } | |
410 | ||
411 | return $res; | |
412 | } | |
413 | ||
414 | sub broadcast_rrd { | |
415 | my ($rrdid, $data) = @_; | |
416 | ||
417 | eval { | |
418 | &$ipcc_update_status("rrd/$rrdid", $data); | |
419 | }; | |
420 | my $err = $@; | |
421 | ||
422 | warn $err if $err; | |
423 | } | |
424 | ||
425 | my $last_rrd_dump = 0; | |
426 | my $last_rrd_data = ""; | |
427 | ||
428 | sub rrd_dump { | |
429 | ||
430 | my $ctime = time(); | |
431 | ||
432 | my $diff = $ctime - $last_rrd_dump; | |
433 | if ($diff < 2) { | |
434 | return $last_rrd_data; | |
435 | } | |
436 | ||
437 | my $raw; | |
438 | eval { | |
95c44445 | 439 | $raw = &$ipcc_send_rec(CFS_IPC_GET_RRD_DUMP); |
fe000966 DM |
440 | }; |
441 | my $err = $@; | |
442 | ||
443 | if ($err) { | |
444 | warn $err; | |
445 | return {}; | |
446 | } | |
447 | ||
448 | my $res = {}; | |
449 | ||
c3fabca7 DM |
450 | if ($raw) { |
451 | while ($raw =~ s/^(.*)\n//) { | |
452 | my ($key, @ela) = split(/:/, $1); | |
453 | next if !$key; | |
454 | next if !(scalar(@ela) > 1); | |
d2aae33e | 455 | $res->{$key} = [ map { $_ eq 'U' ? undef : $_ } @ela ]; |
c3fabca7 | 456 | } |
fe000966 DM |
457 | } |
458 | ||
459 | $last_rrd_dump = $ctime; | |
460 | $last_rrd_data = $res; | |
461 | ||
462 | return $res; | |
463 | } | |
464 | ||
fe000966 DM |
465 | |
466 | # a fast way to read files (avoid fuse overhead) | |
467 | sub get_config { | |
468 | my ($path) = @_; | |
469 | ||
d3a92ba7 | 470 | return &$ipcc_get_config($path); |
fe000966 DM |
471 | } |
472 | ||
473 | sub get_cluster_log { | |
474 | my ($user, $max) = @_; | |
475 | ||
476 | return &$ipcc_get_cluster_log($user, $max); | |
477 | } | |
478 | ||
7dac5e0e FG |
479 | sub verify_token { |
480 | my ($userid, $token) = @_; | |
481 | ||
482 | return &$ipcc_verify_token("$userid $token"); | |
483 | } | |
484 | ||
fe000966 DM |
485 | my $file_info = {}; |
486 | ||
487 | sub cfs_register_file { | |
488 | my ($filename, $parser, $writer) = @_; | |
489 | ||
490 | $observed->{$filename} || die "unknown file '$filename'"; | |
491 | ||
492 | die "file '$filename' already registered" if $file_info->{$filename}; | |
493 | ||
494 | $file_info->{$filename} = { | |
495 | parser => $parser, | |
496 | writer => $writer, | |
497 | }; | |
498 | } | |
499 | ||
500 | my $ccache_read = sub { | |
501 | my ($filename, $parser, $version) = @_; | |
502 | ||
503 | $ccache->{$filename} = {} if !$ccache->{$filename}; | |
504 | ||
505 | my $ci = $ccache->{$filename}; | |
506 | ||
d3a92ba7 | 507 | if (!$ci->{version} || !$version || $ci->{version} != $version) { |
a79c7743 | 508 | # we always call the parser, even when the file does not exist |
d3a92ba7 | 509 | # (in that case $data is undef) |
fe000966 | 510 | my $data = get_config($filename); |
fe000966 DM |
511 | $ci->{data} = &$parser("/etc/pve/$filename", $data); |
512 | $ci->{version} = $version; | |
513 | } | |
514 | ||
515 | my $res = ref($ci->{data}) ? dclone($ci->{data}) : $ci->{data}; | |
516 | ||
517 | return $res; | |
518 | }; | |
519 | ||
520 | sub cfs_file_version { | |
521 | my ($filename) = @_; | |
522 | ||
523 | my $version; | |
524 | my $infotag; | |
6e73d5c2 | 525 | if ($filename =~ m!^nodes/[^/]+/(openvz|lxc|qemu-server)/(\d+)\.conf$!) { |
f71eee41 | 526 | my ($type, $vmid) = ($1, $2); |
fe000966 DM |
527 | if ($vmlist && $vmlist->{ids} && $vmlist->{ids}->{$vmid}) { |
528 | $version = $vmlist->{ids}->{$vmid}->{version}; | |
529 | } | |
f71eee41 | 530 | $infotag = "/$type/"; |
fe000966 DM |
531 | } else { |
532 | $infotag = $filename; | |
533 | $version = $versions->{$filename}; | |
534 | } | |
535 | ||
536 | my $info = $file_info->{$infotag} || | |
537 | die "unknown file type '$filename'\n"; | |
538 | ||
539 | return wantarray ? ($version, $info) : $version; | |
540 | } | |
541 | ||
542 | sub cfs_read_file { | |
543 | my ($filename) = @_; | |
544 | ||
c53b111f | 545 | my ($version, $info) = cfs_file_version($filename); |
fe000966 DM |
546 | my $parser = $info->{parser}; |
547 | ||
548 | return &$ccache_read($filename, $parser, $version); | |
549 | } | |
550 | ||
551 | sub cfs_write_file { | |
552 | my ($filename, $data) = @_; | |
553 | ||
c53b111f | 554 | my ($version, $info) = cfs_file_version($filename); |
fe000966 DM |
555 | |
556 | my $writer = $info->{writer} || die "no writer defined"; | |
557 | ||
558 | my $fsname = "/etc/pve/$filename"; | |
559 | ||
560 | my $raw = &$writer($fsname, $data); | |
561 | ||
562 | if (my $ci = $ccache->{$filename}) { | |
563 | $ci->{version} = undef; | |
564 | } | |
565 | ||
566 | PVE::Tools::file_set_contents($fsname, $raw); | |
567 | } | |
568 | ||
569 | my $cfs_lock = sub { | |
570 | my ($lockid, $timeout, $code, @param) = @_; | |
571 | ||
00ea8428 TL |
572 | my $prev_alarm = alarm(0); # suspend outer alarm early |
573 | ||
fe000966 | 574 | my $res; |
bcdb1b3a | 575 | my $got_lock = 0; |
fe000966 | 576 | |
e8c6be91 | 577 | # this timeout is for acquire the lock |
fe000966 DM |
578 | $timeout = 10 if !$timeout; |
579 | ||
580 | my $filename = "$lockdir/$lockid"; | |
581 | ||
e085fe6f | 582 | my $is_code_err = 0; |
fe000966 DM |
583 | eval { |
584 | ||
585 | mkdir $lockdir; | |
586 | ||
587 | if (! -d $lockdir) { | |
6e13e20a | 588 | die "pve cluster filesystem not online.\n"; |
fe000966 DM |
589 | } |
590 | ||
6e13e20a | 591 | my $timeout_err = sub { die "got lock request timeout\n"; }; |
bcdb1b3a | 592 | local $SIG{ALRM} = $timeout_err; |
fe000966 | 593 | |
bcdb1b3a TL |
594 | while (1) { |
595 | alarm ($timeout); | |
596 | $got_lock = mkdir($filename); | |
3fb23b5b | 597 | $timeout = alarm(0) - 1; # we'll sleep for 1s, see down below |
bcdb1b3a TL |
598 | |
599 | last if $got_lock; | |
600 | ||
3fb23b5b | 601 | $timeout_err->() if $timeout <= 0; |
fe000966 | 602 | |
e8c6be91 | 603 | print STDERR "trying to acquire cfs lock '$lockid' ...\n"; |
bcdb1b3a TL |
604 | utime (0, 0, $filename); # cfs unlock request |
605 | sleep(1); | |
fe000966 DM |
606 | } |
607 | ||
608 | # fixed command timeout: cfs locks have a timeout of 120 | |
609 | # using 60 gives us another 60 seconds to abort the task | |
e085fe6f | 610 | local $SIG{ALRM} = sub { die "'$lockid'-locked command timed out - aborting\n"; }; |
00ea8428 | 611 | alarm(60); |
fe000966 | 612 | |
9c206b2b DM |
613 | cfs_update(); # make sure we read latest versions inside code() |
614 | ||
e085fe6f TL |
615 | $is_code_err = 1; # allows to differ between locking and actual-work errors |
616 | ||
fe000966 DM |
617 | $res = &$code(@param); |
618 | ||
619 | alarm(0); | |
620 | }; | |
621 | ||
622 | my $err = $@; | |
623 | ||
6e13e20a | 624 | $err = "no quorum!\n" if !$got_lock && !check_cfs_quorum(1); |
fe000966 | 625 | |
96857ee4 | 626 | rmdir $filename if $got_lock; # if we held the lock always unlock again |
fe000966 | 627 | |
00ea8428 TL |
628 | alarm($prev_alarm); |
629 | ||
fe000966 | 630 | if ($err) { |
e085fe6f | 631 | if (ref($err) eq 'PVE::Exception' || $is_code_err) { |
c09b0af5 FG |
632 | # re-raise defined exceptions |
633 | $@ = $err; | |
634 | } else { | |
e085fe6f TL |
635 | # add lock info for plain errors comming from the locking itself |
636 | $@ = "cfs-lock '$lockid' error: $err"; | |
c09b0af5 | 637 | } |
fe000966 DM |
638 | return undef; |
639 | } | |
640 | ||
641 | $@ = undef; | |
642 | ||
643 | return $res; | |
644 | }; | |
645 | ||
646 | sub cfs_lock_file { | |
647 | my ($filename, $timeout, $code, @param) = @_; | |
648 | ||
649 | my $info = $observed->{$filename} || die "unknown file '$filename'"; | |
650 | ||
651 | my $lockid = "file-$filename"; | |
652 | $lockid =~ s/[.\/]/_/g; | |
653 | ||
654 | &$cfs_lock($lockid, $timeout, $code, @param); | |
655 | } | |
656 | ||
657 | sub cfs_lock_storage { | |
658 | my ($storeid, $timeout, $code, @param) = @_; | |
659 | ||
660 | my $lockid = "storage-$storeid"; | |
661 | ||
662 | &$cfs_lock($lockid, $timeout, $code, @param); | |
663 | } | |
664 | ||
78897707 TL |
665 | sub cfs_lock_domain { |
666 | my ($domainname, $timeout, $code, @param) = @_; | |
667 | ||
668 | my $lockid = "domain-$domainname"; | |
669 | ||
670 | &$cfs_lock($lockid, $timeout, $code, @param); | |
671 | } | |
672 | ||
4790f9f4 FG |
673 | sub cfs_lock_acme { |
674 | my ($account, $timeout, $code, @param) = @_; | |
675 | ||
676 | my $lockid = "acme-$account"; | |
677 | ||
678 | &$cfs_lock($lockid, $timeout, $code, @param); | |
679 | } | |
680 | ||
900b50d9 FG |
681 | sub cfs_lock_authkey { |
682 | my ($timeout, $code, @param) = @_; | |
683 | ||
684 | $cfs_lock->('authkey', $timeout, $code, @param); | |
31c78985 FG |
685 | } |
686 | ||
687 | sub cfs_lock_firewall { | |
688 | my ($scope, $timeout, $code, @param) = @_; | |
689 | ||
690 | my $lockid = "firewall-$scope"; | |
691 | ||
692 | $cfs_lock->($lockid, $timeout, $code, @param); | |
900b50d9 FG |
693 | } |
694 | ||
fe000966 DM |
695 | my $log_levels = { |
696 | "emerg" => 0, | |
697 | "alert" => 1, | |
698 | "crit" => 2, | |
699 | "critical" => 2, | |
700 | "err" => 3, | |
701 | "error" => 3, | |
702 | "warn" => 4, | |
703 | "warning" => 4, | |
704 | "notice" => 5, | |
705 | "info" => 6, | |
706 | "debug" => 7, | |
707 | }; | |
708 | ||
709 | sub log_msg { | |
710 | my ($priority, $ident, $msg) = @_; | |
711 | ||
712 | if (my $tmp = $log_levels->{$priority}) { | |
713 | $priority = $tmp; | |
714 | } | |
715 | ||
716 | die "need numeric log priority" if $priority !~ /^\d+$/; | |
717 | ||
718 | my $tag = PVE::SafeSyslog::tag(); | |
719 | ||
720 | $msg = "empty message" if !$msg; | |
721 | ||
722 | $ident = "" if !$ident; | |
8f2d54ff | 723 | $ident = encode("ascii", $ident, |
fe000966 DM |
724 | sub { sprintf "\\u%04x", shift }); |
725 | ||
8f2d54ff | 726 | my $ascii = encode("ascii", $msg, sub { sprintf "\\u%04x", shift }); |
fe000966 DM |
727 | |
728 | if ($ident) { | |
729 | syslog($priority, "<%s> %s", $ident, $ascii); | |
730 | } else { | |
731 | syslog($priority, "%s", $ascii); | |
732 | } | |
733 | ||
734 | eval { &$ipcc_log($priority, $ident, $tag, $ascii); }; | |
735 | ||
736 | syslog("err", "writing cluster log failed: $@") if $@; | |
737 | } | |
738 | ||
9d76a1bb DM |
739 | sub check_vmid_unused { |
740 | my ($vmid, $noerr) = @_; | |
c53b111f | 741 | |
9d76a1bb DM |
742 | my $vmlist = get_vmlist(); |
743 | ||
744 | my $d = $vmlist->{ids}->{$vmid}; | |
745 | return 1 if !defined($d); | |
c53b111f | 746 | |
9d76a1bb DM |
747 | return undef if $noerr; |
748 | ||
4f66b109 | 749 | my $vmtypestr = $d->{type} eq 'qemu' ? 'VM' : 'CT'; |
e75ccbee | 750 | die "$vmtypestr $vmid already exists on node '$d->{node}'\n"; |
9d76a1bb DM |
751 | } |
752 | ||
65ff467f DM |
753 | sub check_node_exists { |
754 | my ($nodename, $noerr) = @_; | |
755 | ||
756 | my $nodelist = $clinfo->{nodelist}; | |
757 | return 1 if $nodelist && $nodelist->{$nodename}; | |
758 | ||
759 | return undef if $noerr; | |
760 | ||
761 | die "no such cluster node '$nodename'\n"; | |
762 | } | |
763 | ||
fe000966 DM |
764 | # this is also used to get the IP of the local node |
765 | sub remote_node_ip { | |
766 | my ($nodename, $noerr) = @_; | |
767 | ||
768 | my $nodelist = $clinfo->{nodelist}; | |
769 | if ($nodelist && $nodelist->{$nodename}) { | |
770 | if (my $ip = $nodelist->{$nodename}->{ip}) { | |
fc31f517 WB |
771 | return $ip if !wantarray; |
772 | my $family = $nodelist->{$nodename}->{address_family}; | |
773 | if (!$family) { | |
774 | $nodelist->{$nodename}->{address_family} = | |
775 | $family = | |
776 | PVE::Tools::get_host_address_family($ip); | |
777 | } | |
14830160 | 778 | return wantarray ? ($ip, $family) : $ip; |
fe000966 DM |
779 | } |
780 | } | |
781 | ||
782 | # fallback: try to get IP by other means | |
e064c9b0 | 783 | return PVE::Network::get_ip_from_hostname($nodename, $noerr); |
fe000966 DM |
784 | } |
785 | ||
1904862a TL |
786 | sub get_node_fingerprint { |
787 | my ($node) = @_; | |
788 | ||
789 | my $cert_path = "/etc/pve/nodes/$node/pve-ssl.pem"; | |
790 | my $custom_cert_path = "/etc/pve/nodes/$node/pveproxy-ssl.pem"; | |
791 | ||
792 | $cert_path = $custom_cert_path if -f $custom_cert_path; | |
793 | ||
c92b7716 | 794 | return PVE::Certificate::get_certificate_fingerprint($cert_path); |
1904862a TL |
795 | } |
796 | ||
15df58e6 DM |
797 | # bash completion helpers |
798 | ||
799 | sub complete_next_vmid { | |
800 | ||
801 | my $vmlist = get_vmlist() || {}; | |
802 | my $idlist = $vmlist->{ids} || {}; | |
803 | ||
804 | for (my $i = 100; $i < 10000; $i++) { | |
805 | return [$i] if !defined($idlist->{$i}); | |
806 | } | |
807 | ||
808 | return []; | |
809 | } | |
810 | ||
87515b25 DM |
811 | sub complete_vmid { |
812 | ||
813 | my $vmlist = get_vmlist(); | |
814 | my $ids = $vmlist->{ids} || {}; | |
815 | ||
816 | return [ keys %$ids ]; | |
817 | } | |
818 | ||
15df58e6 DM |
819 | sub complete_local_vmid { |
820 | ||
821 | my $vmlist = get_vmlist(); | |
822 | my $ids = $vmlist->{ids} || {}; | |
823 | ||
824 | my $nodename = PVE::INotify::nodename(); | |
825 | ||
826 | my $res = []; | |
827 | foreach my $vmid (keys %$ids) { | |
828 | my $d = $ids->{$vmid}; | |
829 | next if !$d->{node} || $d->{node} ne $nodename; | |
830 | push @$res, $vmid; | |
831 | } | |
832 | ||
833 | return $res; | |
834 | } | |
835 | ||
4dd189df DM |
836 | sub complete_migration_target { |
837 | ||
838 | my $res = []; | |
839 | ||
840 | my $nodename = PVE::INotify::nodename(); | |
841 | ||
842 | my $nodelist = get_nodelist(); | |
843 | foreach my $node (@$nodelist) { | |
844 | next if $node eq $nodename; | |
845 | push @$res, $node; | |
846 | } | |
847 | ||
848 | return $res; | |
849 | } | |
850 | ||
1f1aef8b | 851 | |
a9965358 | 852 | # NOTE: filesystem must be offline here, no DB changes allowed |
c5204e14 | 853 | sub cfs_backup_database { |
e02bdaae TL |
854 | mkdir $dbbackupdir; |
855 | ||
e02bdaae | 856 | my $ctime = time(); |
a9965358 | 857 | my $backup_fn = "$dbbackupdir/config-$ctime.sql.gz"; |
e02bdaae | 858 | |
a9965358 | 859 | print "backup old database to '$backup_fn'\n"; |
e02bdaae | 860 | |
a9965358 TL |
861 | my $cmd = [ ['sqlite3', $dbfile, '.dump'], ['gzip', '-', \ ">${backup_fn}"] ]; |
862 | run_command($cmd, 'errmsg' => "cannot backup old database\n"); | |
e02bdaae | 863 | |
a9965358 TL |
864 | my $maxfiles = 10; # purge older backup |
865 | my $backups = [ sort { $b cmp $a } <$dbbackupdir/config-*.sql.gz> ]; | |
866 | ||
867 | if ((my $count = scalar(@$backups)) > $maxfiles) { | |
868 | foreach my $f (@$backups[$maxfiles..$count-1]) { | |
ee0daa88 | 869 | next if $f !~ m/^(\S+)$/; # untaint |
a9965358 TL |
870 | print "delete old backup '$1'\n"; |
871 | unlink $1; | |
872 | } | |
e02bdaae | 873 | } |
8f64504c | 874 | |
c5204e14 | 875 | return $dbfile; |
8f64504c | 876 | } |
e02bdaae | 877 | |
ac68281b | 878 | 1; |