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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 | ||
4f26cc86 | 123 | die "pve configuration filesystem (pmxcfs) not mounted\n" if !$res && !$noerr; |
fe000966 DM |
124 | |
125 | return $res; | |
126 | } | |
127 | ||
fe000966 DM |
128 | my $versions = {}; |
129 | my $vmlist = {}; | |
130 | my $clinfo = {}; | |
131 | ||
132 | my $ipcc_send_rec = sub { | |
133 | my ($msgid, $data) = @_; | |
134 | ||
135 | my $res = PVE::IPCC::ipcc_send_rec($msgid, $data); | |
136 | ||
dd856b4d | 137 | die "ipcc_send_rec[$msgid] failed: $!\n" if !defined($res) && ($! != 0); |
fe000966 DM |
138 | |
139 | return $res; | |
140 | }; | |
141 | ||
142 | my $ipcc_send_rec_json = sub { | |
143 | my ($msgid, $data) = @_; | |
144 | ||
145 | my $res = PVE::IPCC::ipcc_send_rec($msgid, $data); | |
146 | ||
dd856b4d | 147 | die "ipcc_send_rec[$msgid] failed: $!\n" if !defined($res) && ($! != 0); |
fe000966 DM |
148 | |
149 | return decode_json($res); | |
150 | }; | |
151 | ||
152 | my $ipcc_get_config = sub { | |
153 | my ($path) = @_; | |
154 | ||
155 | my $bindata = pack "Z*", $path; | |
95c44445 | 156 | my $res = PVE::IPCC::ipcc_send_rec(CFS_IPC_GET_CONFIG, $bindata); |
2db32d95 | 157 | if (!defined($res)) { |
7bac9ca5 WB |
158 | if ($! != 0) { |
159 | return undef if $! == ENOENT; | |
160 | die "$!\n"; | |
161 | } | |
2db32d95 DM |
162 | return ''; |
163 | } | |
164 | ||
165 | return $res; | |
fe000966 DM |
166 | }; |
167 | ||
168 | my $ipcc_get_status = sub { | |
169 | my ($name, $nodename) = @_; | |
170 | ||
171 | my $bindata = pack "Z[256]Z[256]", $name, ($nodename || ""); | |
95c44445 | 172 | return PVE::IPCC::ipcc_send_rec(CFS_IPC_GET_STATUS, $bindata); |
fe000966 DM |
173 | }; |
174 | ||
71cc17bc DC |
175 | my $ipcc_remove_status = sub { |
176 | my ($name) = @_; | |
0adf0c5a TL |
177 | # we just omit the data payload, pmxcfs takes this as hint and removes this |
178 | # key from the status hashtable | |
71cc17bc DC |
179 | my $bindata = pack "Z[256]", $name; |
180 | return &$ipcc_send_rec(CFS_IPC_SET_STATUS, $bindata); | |
181 | }; | |
182 | ||
fe000966 DM |
183 | my $ipcc_update_status = sub { |
184 | my ($name, $data) = @_; | |
185 | ||
186 | my $raw = ref($data) ? encode_json($data) : $data; | |
187 | # update status | |
188 | my $bindata = pack "Z[256]Z*", $name, $raw; | |
189 | ||
95c44445 | 190 | return &$ipcc_send_rec(CFS_IPC_SET_STATUS, $bindata); |
fe000966 DM |
191 | }; |
192 | ||
193 | my $ipcc_log = sub { | |
194 | my ($priority, $ident, $tag, $msg) = @_; | |
195 | ||
196 | my $bindata = pack "CCCZ*Z*Z*", $priority, bytes::length($ident) + 1, | |
197 | bytes::length($tag) + 1, $ident, $tag, $msg; | |
198 | ||
95c44445 | 199 | return &$ipcc_send_rec(CFS_IPC_LOG_CLUSTER_MSG, $bindata); |
fe000966 DM |
200 | }; |
201 | ||
202 | my $ipcc_get_cluster_log = sub { | |
203 | my ($user, $max) = @_; | |
204 | ||
205 | $max = 0 if !defined($max); | |
206 | ||
207 | my $bindata = pack "VVVVZ*", $max, 0, 0, 0, ($user || ""); | |
95c44445 | 208 | return &$ipcc_send_rec(CFS_IPC_GET_CLUSTER_LOG, $bindata); |
fe000966 DM |
209 | }; |
210 | ||
7dac5e0e FG |
211 | my $ipcc_verify_token = sub { |
212 | my ($full_token) = @_; | |
213 | ||
214 | my $bindata = pack "Z*", $full_token; | |
215 | my $res = PVE::IPCC::ipcc_send_rec(CFS_IPC_VERIFY_TOKEN, $bindata); | |
216 | ||
217 | return 1 if $! == 0; | |
218 | return 0 if $! == ENOENT; | |
219 | ||
220 | die "$!\n"; | |
221 | }; | |
222 | ||
fe000966 DM |
223 | my $ccache = {}; |
224 | ||
225 | sub cfs_update { | |
686801e4 | 226 | my ($fail) = @_; |
fe000966 | 227 | eval { |
95c44445 | 228 | my $res = &$ipcc_send_rec_json(CFS_IPC_GET_FS_VERSION); |
fe000966 DM |
229 | die "no starttime\n" if !$res->{starttime}; |
230 | ||
231 | if (!$res->{starttime} || !$versions->{starttime} || | |
232 | $res->{starttime} != $versions->{starttime}) { | |
233 | #print "detected changed starttime\n"; | |
234 | $vmlist = {}; | |
235 | $clinfo = {}; | |
236 | $ccache = {}; | |
237 | } | |
238 | ||
239 | $versions = $res; | |
240 | }; | |
241 | my $err = $@; | |
242 | if ($err) { | |
243 | $versions = {}; | |
244 | $vmlist = {}; | |
245 | $clinfo = {}; | |
246 | $ccache = {}; | |
686801e4 | 247 | die $err if $fail; |
fe000966 DM |
248 | warn $err; |
249 | } | |
250 | ||
251 | eval { | |
252 | if (!$clinfo->{version} || $clinfo->{version} != $versions->{clinfo}) { | |
253 | #warn "detected new clinfo\n"; | |
95c44445 | 254 | $clinfo = &$ipcc_send_rec_json(CFS_IPC_GET_CLUSTER_INFO); |
fe000966 DM |
255 | } |
256 | }; | |
257 | $err = $@; | |
258 | if ($err) { | |
259 | $clinfo = {}; | |
686801e4 | 260 | die $err if $fail; |
fe000966 DM |
261 | warn $err; |
262 | } | |
263 | ||
264 | eval { | |
265 | if (!$vmlist->{version} || $vmlist->{version} != $versions->{vmlist}) { | |
266 | #warn "detected new vmlist1\n"; | |
95c44445 | 267 | $vmlist = &$ipcc_send_rec_json(CFS_IPC_GET_GUEST_LIST); |
fe000966 DM |
268 | } |
269 | }; | |
270 | $err = $@; | |
271 | if ($err) { | |
272 | $vmlist = {}; | |
686801e4 | 273 | die $err if $fail; |
fe000966 DM |
274 | warn $err; |
275 | } | |
276 | } | |
277 | ||
278 | sub get_vmlist { | |
279 | return $vmlist; | |
280 | } | |
281 | ||
282 | sub get_clinfo { | |
283 | return $clinfo; | |
284 | } | |
285 | ||
9ddd4ae9 DM |
286 | sub get_members { |
287 | return $clinfo->{nodelist}; | |
288 | } | |
289 | ||
fe000966 | 290 | sub get_nodelist { |
fe000966 DM |
291 | my $nodelist = $clinfo->{nodelist}; |
292 | ||
fe000966 DM |
293 | my $nodename = PVE::INotify::nodename(); |
294 | ||
295 | if (!$nodelist || !$nodelist->{$nodename}) { | |
296 | return [ $nodename ]; | |
297 | } | |
298 | ||
299 | return [ keys %$nodelist ]; | |
300 | } | |
301 | ||
0adf0c5a TL |
302 | # only stored in a in-memory hashtable inside pmxcfs, local data is gone after |
303 | # a restart (of pmxcfs or the node), peer data is still available then | |
304 | # best used for status data, like running (ceph) services, package versions, ... | |
a26b18e1 DC |
305 | sub broadcast_node_kv { |
306 | my ($key, $data) = @_; | |
307 | ||
308 | if (!defined($data)) { | |
4d04cad0 | 309 | eval { $ipcc_remove_status->("kv/$key") }; |
a26b18e1 DC |
310 | } else { |
311 | die "cannot send a reference\n" if ref($data); | |
312 | my $size = length($data); | |
0adf0c5a | 313 | die "data for '$key' too big\n" if $size >= (32 * 1024); # limit from pmxfs |
a26b18e1 | 314 | |
4d04cad0 | 315 | eval { $ipcc_update_status->("kv/$key", $data) }; |
a26b18e1 | 316 | } |
a26b18e1 DC |
317 | warn $@ if $@; |
318 | } | |
319 | ||
0adf0c5a | 320 | # nodename is optional |
a26b18e1 DC |
321 | sub get_node_kv { |
322 | my ($key, $nodename) = @_; | |
323 | ||
324 | my $res = {}; | |
325 | my $get_node_data = sub { | |
326 | my ($node) = @_; | |
327 | my $raw = $ipcc_get_status->("kv/$key", $node); | |
14000cd7 | 328 | $res->{$node} = unpack("Z*", $raw) if $raw; |
a26b18e1 DC |
329 | }; |
330 | ||
331 | if ($nodename) { | |
332 | $get_node_data->($nodename); | |
333 | } else { | |
4d04cad0 | 334 | for my $node (get_nodelist()->@*) { |
a26b18e1 DC |
335 | $get_node_data->($node); |
336 | } | |
337 | } | |
338 | ||
339 | return $res; | |
340 | } | |
341 | ||
cf1b19d9 TL |
342 | # property: a config property you want to get, e.g., this is perfect to get |
343 | # the 'lock' entry of a guest _fast_ (>100 faster than manual parsing here) | |
8a93eeae | 344 | # vmid: optional, if a valid is passed we only check that one, else return all |
cf1b19d9 TL |
345 | # NOTE: does *not* searches snapshot and PENDING entries sections! |
346 | sub get_guest_config_property { | |
347 | my ($property, $vmid) = @_; | |
348 | ||
349 | die "property is required" if !defined($property); | |
350 | ||
351 | my $bindata = pack "VZ*", $vmid // 0, $property; | |
352 | my $res = $ipcc_send_rec_json->(CFS_IPC_GET_GUEST_CONFIG_PROPERTY, $bindata); | |
353 | ||
354 | return $res; | |
355 | } | |
356 | ||
1b36b6b1 | 357 | # $data must be a chronological descending ordered array of tasks |
fe000966 DM |
358 | sub broadcast_tasklist { |
359 | my ($data) = @_; | |
360 | ||
4f26cc86 TL |
361 | # the serialized list may not get bigger than 128 KiB (CFS_MAX_STATUS_SIZE from pmxcfs) |
362 | # drop older items until we satisfy this constraint | |
1b36b6b1 | 363 | my $size = length(encode_json($data)); |
4f26cc86 | 364 | while ($size >= (32 * 1024)) { # TODO: update to 128 KiB in PVE 8.x |
1b36b6b1 TL |
365 | pop @$data; |
366 | $size = length(encode_json($data)); | |
367 | } | |
368 | ||
4f26cc86 | 369 | eval { $ipcc_update_status->("tasklist", $data) }; |
fe000966 DM |
370 | warn $@ if $@; |
371 | } | |
372 | ||
373 | my $tasklistcache = {}; | |
374 | ||
375 | sub get_tasklist { | |
376 | my ($nodename) = @_; | |
377 | ||
378 | my $kvstore = $versions->{kvstore} || {}; | |
379 | ||
380 | my $nodelist = get_nodelist(); | |
381 | ||
382 | my $res = []; | |
383 | foreach my $node (@$nodelist) { | |
384 | next if $nodename && ($nodename ne $node); | |
385 | eval { | |
386 | my $ver = $kvstore->{$node}->{tasklist} if $kvstore->{$node}; | |
1f1c5c43 TL |
387 | my $cache = $tasklistcache->{$node}; |
388 | if (!$cache || !$ver || !$cache->{version} || ($cache->{version} != $ver)) { | |
389 | my $tasks = []; | |
390 | if (my $raw = $ipcc_get_status->("tasklist", $node)) { | |
aea0f5a6 TL |
391 | my $json_str = unpack("Z*", $raw); |
392 | $tasks = decode_json($json_str); | |
1f1c5c43 TL |
393 | } |
394 | push @$res, @$tasks; | |
395 | $tasklistcache->{$node} = { | |
396 | data => $tasks, | |
fe000966 DM |
397 | version => $ver, |
398 | }; | |
1f1c5c43 TL |
399 | } elsif ($cache && $cache->{data}) { |
400 | push @$res, $cache->{data}->@*; | |
fe000966 DM |
401 | } |
402 | }; | |
403 | my $err = $@; | |
404 | syslog('err', $err) if $err; | |
405 | } | |
406 | ||
407 | return $res; | |
408 | } | |
409 | ||
410 | sub broadcast_rrd { | |
411 | my ($rrdid, $data) = @_; | |
412 | ||
413 | eval { | |
414 | &$ipcc_update_status("rrd/$rrdid", $data); | |
415 | }; | |
416 | my $err = $@; | |
417 | ||
418 | warn $err if $err; | |
419 | } | |
420 | ||
421 | my $last_rrd_dump = 0; | |
422 | my $last_rrd_data = ""; | |
423 | ||
424 | sub rrd_dump { | |
425 | ||
426 | my $ctime = time(); | |
427 | ||
428 | my $diff = $ctime - $last_rrd_dump; | |
429 | if ($diff < 2) { | |
430 | return $last_rrd_data; | |
431 | } | |
432 | ||
433 | my $raw; | |
434 | eval { | |
95c44445 | 435 | $raw = &$ipcc_send_rec(CFS_IPC_GET_RRD_DUMP); |
fe000966 DM |
436 | }; |
437 | my $err = $@; | |
438 | ||
439 | if ($err) { | |
440 | warn $err; | |
441 | return {}; | |
442 | } | |
443 | ||
444 | my $res = {}; | |
445 | ||
c3fabca7 DM |
446 | if ($raw) { |
447 | while ($raw =~ s/^(.*)\n//) { | |
448 | my ($key, @ela) = split(/:/, $1); | |
449 | next if !$key; | |
450 | next if !(scalar(@ela) > 1); | |
d2aae33e | 451 | $res->{$key} = [ map { $_ eq 'U' ? undef : $_ } @ela ]; |
c3fabca7 | 452 | } |
fe000966 DM |
453 | } |
454 | ||
455 | $last_rrd_dump = $ctime; | |
456 | $last_rrd_data = $res; | |
457 | ||
458 | return $res; | |
459 | } | |
460 | ||
fe000966 DM |
461 | |
462 | # a fast way to read files (avoid fuse overhead) | |
463 | sub get_config { | |
464 | my ($path) = @_; | |
465 | ||
d3a92ba7 | 466 | return &$ipcc_get_config($path); |
fe000966 DM |
467 | } |
468 | ||
469 | sub get_cluster_log { | |
470 | my ($user, $max) = @_; | |
471 | ||
472 | return &$ipcc_get_cluster_log($user, $max); | |
473 | } | |
474 | ||
7dac5e0e FG |
475 | sub verify_token { |
476 | my ($userid, $token) = @_; | |
477 | ||
478 | return &$ipcc_verify_token("$userid $token"); | |
479 | } | |
480 | ||
fe000966 DM |
481 | my $file_info = {}; |
482 | ||
483 | sub cfs_register_file { | |
484 | my ($filename, $parser, $writer) = @_; | |
485 | ||
486 | $observed->{$filename} || die "unknown file '$filename'"; | |
487 | ||
488 | die "file '$filename' already registered" if $file_info->{$filename}; | |
489 | ||
490 | $file_info->{$filename} = { | |
491 | parser => $parser, | |
492 | writer => $writer, | |
493 | }; | |
494 | } | |
495 | ||
496 | my $ccache_read = sub { | |
497 | my ($filename, $parser, $version) = @_; | |
498 | ||
499 | $ccache->{$filename} = {} if !$ccache->{$filename}; | |
500 | ||
501 | my $ci = $ccache->{$filename}; | |
502 | ||
d3a92ba7 | 503 | if (!$ci->{version} || !$version || $ci->{version} != $version) { |
a79c7743 | 504 | # we always call the parser, even when the file does not exist |
d3a92ba7 | 505 | # (in that case $data is undef) |
fe000966 | 506 | my $data = get_config($filename); |
fe000966 DM |
507 | $ci->{data} = &$parser("/etc/pve/$filename", $data); |
508 | $ci->{version} = $version; | |
509 | } | |
510 | ||
511 | my $res = ref($ci->{data}) ? dclone($ci->{data}) : $ci->{data}; | |
512 | ||
513 | return $res; | |
514 | }; | |
515 | ||
516 | sub cfs_file_version { | |
517 | my ($filename) = @_; | |
518 | ||
519 | my $version; | |
520 | my $infotag; | |
6e73d5c2 | 521 | if ($filename =~ m!^nodes/[^/]+/(openvz|lxc|qemu-server)/(\d+)\.conf$!) { |
f71eee41 | 522 | my ($type, $vmid) = ($1, $2); |
fe000966 DM |
523 | if ($vmlist && $vmlist->{ids} && $vmlist->{ids}->{$vmid}) { |
524 | $version = $vmlist->{ids}->{$vmid}->{version}; | |
525 | } | |
f71eee41 | 526 | $infotag = "/$type/"; |
fe000966 DM |
527 | } else { |
528 | $infotag = $filename; | |
529 | $version = $versions->{$filename}; | |
530 | } | |
531 | ||
532 | my $info = $file_info->{$infotag} || | |
533 | die "unknown file type '$filename'\n"; | |
534 | ||
535 | return wantarray ? ($version, $info) : $version; | |
536 | } | |
537 | ||
538 | sub cfs_read_file { | |
539 | my ($filename) = @_; | |
540 | ||
c53b111f | 541 | my ($version, $info) = cfs_file_version($filename); |
fe000966 DM |
542 | my $parser = $info->{parser}; |
543 | ||
544 | return &$ccache_read($filename, $parser, $version); | |
545 | } | |
546 | ||
547 | sub cfs_write_file { | |
548 | my ($filename, $data) = @_; | |
549 | ||
c53b111f | 550 | my ($version, $info) = cfs_file_version($filename); |
fe000966 DM |
551 | |
552 | my $writer = $info->{writer} || die "no writer defined"; | |
553 | ||
554 | my $fsname = "/etc/pve/$filename"; | |
555 | ||
556 | my $raw = &$writer($fsname, $data); | |
557 | ||
558 | if (my $ci = $ccache->{$filename}) { | |
559 | $ci->{version} = undef; | |
560 | } | |
561 | ||
562 | PVE::Tools::file_set_contents($fsname, $raw); | |
563 | } | |
564 | ||
565 | my $cfs_lock = sub { | |
566 | my ($lockid, $timeout, $code, @param) = @_; | |
567 | ||
00ea8428 TL |
568 | my $prev_alarm = alarm(0); # suspend outer alarm early |
569 | ||
fe000966 | 570 | my $res; |
bcdb1b3a | 571 | my $got_lock = 0; |
fe000966 | 572 | |
e8c6be91 | 573 | # this timeout is for acquire the lock |
fe000966 DM |
574 | $timeout = 10 if !$timeout; |
575 | ||
576 | my $filename = "$lockdir/$lockid"; | |
577 | ||
e085fe6f | 578 | my $is_code_err = 0; |
fe000966 DM |
579 | eval { |
580 | ||
581 | mkdir $lockdir; | |
582 | ||
583 | if (! -d $lockdir) { | |
6e13e20a | 584 | die "pve cluster filesystem not online.\n"; |
fe000966 DM |
585 | } |
586 | ||
6e13e20a | 587 | my $timeout_err = sub { die "got lock request timeout\n"; }; |
bcdb1b3a | 588 | local $SIG{ALRM} = $timeout_err; |
fe000966 | 589 | |
bcdb1b3a TL |
590 | while (1) { |
591 | alarm ($timeout); | |
592 | $got_lock = mkdir($filename); | |
3fb23b5b | 593 | $timeout = alarm(0) - 1; # we'll sleep for 1s, see down below |
bcdb1b3a TL |
594 | |
595 | last if $got_lock; | |
596 | ||
3fb23b5b | 597 | $timeout_err->() if $timeout <= 0; |
fe000966 | 598 | |
e8c6be91 | 599 | print STDERR "trying to acquire cfs lock '$lockid' ...\n"; |
bcdb1b3a TL |
600 | utime (0, 0, $filename); # cfs unlock request |
601 | sleep(1); | |
fe000966 DM |
602 | } |
603 | ||
604 | # fixed command timeout: cfs locks have a timeout of 120 | |
605 | # using 60 gives us another 60 seconds to abort the task | |
e085fe6f | 606 | local $SIG{ALRM} = sub { die "'$lockid'-locked command timed out - aborting\n"; }; |
00ea8428 | 607 | alarm(60); |
fe000966 | 608 | |
9c206b2b DM |
609 | cfs_update(); # make sure we read latest versions inside code() |
610 | ||
e085fe6f TL |
611 | $is_code_err = 1; # allows to differ between locking and actual-work errors |
612 | ||
fe000966 DM |
613 | $res = &$code(@param); |
614 | ||
615 | alarm(0); | |
616 | }; | |
617 | ||
618 | my $err = $@; | |
619 | ||
6e13e20a | 620 | $err = "no quorum!\n" if !$got_lock && !check_cfs_quorum(1); |
fe000966 | 621 | |
96857ee4 | 622 | rmdir $filename if $got_lock; # if we held the lock always unlock again |
fe000966 | 623 | |
00ea8428 TL |
624 | alarm($prev_alarm); |
625 | ||
fe000966 | 626 | if ($err) { |
e085fe6f | 627 | if (ref($err) eq 'PVE::Exception' || $is_code_err) { |
c09b0af5 FG |
628 | # re-raise defined exceptions |
629 | $@ = $err; | |
630 | } else { | |
e085fe6f TL |
631 | # add lock info for plain errors comming from the locking itself |
632 | $@ = "cfs-lock '$lockid' error: $err"; | |
c09b0af5 | 633 | } |
fe000966 DM |
634 | return undef; |
635 | } | |
636 | ||
637 | $@ = undef; | |
638 | ||
639 | return $res; | |
640 | }; | |
641 | ||
642 | sub cfs_lock_file { | |
643 | my ($filename, $timeout, $code, @param) = @_; | |
644 | ||
645 | my $info = $observed->{$filename} || die "unknown file '$filename'"; | |
646 | ||
647 | my $lockid = "file-$filename"; | |
648 | $lockid =~ s/[.\/]/_/g; | |
649 | ||
650 | &$cfs_lock($lockid, $timeout, $code, @param); | |
651 | } | |
652 | ||
653 | sub cfs_lock_storage { | |
654 | my ($storeid, $timeout, $code, @param) = @_; | |
655 | ||
656 | my $lockid = "storage-$storeid"; | |
657 | ||
658 | &$cfs_lock($lockid, $timeout, $code, @param); | |
659 | } | |
660 | ||
78897707 TL |
661 | sub cfs_lock_domain { |
662 | my ($domainname, $timeout, $code, @param) = @_; | |
663 | ||
664 | my $lockid = "domain-$domainname"; | |
665 | ||
666 | &$cfs_lock($lockid, $timeout, $code, @param); | |
667 | } | |
668 | ||
4790f9f4 FG |
669 | sub cfs_lock_acme { |
670 | my ($account, $timeout, $code, @param) = @_; | |
671 | ||
672 | my $lockid = "acme-$account"; | |
673 | ||
674 | &$cfs_lock($lockid, $timeout, $code, @param); | |
675 | } | |
676 | ||
900b50d9 FG |
677 | sub cfs_lock_authkey { |
678 | my ($timeout, $code, @param) = @_; | |
679 | ||
680 | $cfs_lock->('authkey', $timeout, $code, @param); | |
31c78985 FG |
681 | } |
682 | ||
683 | sub cfs_lock_firewall { | |
684 | my ($scope, $timeout, $code, @param) = @_; | |
685 | ||
686 | my $lockid = "firewall-$scope"; | |
687 | ||
688 | $cfs_lock->($lockid, $timeout, $code, @param); | |
900b50d9 FG |
689 | } |
690 | ||
fe000966 DM |
691 | my $log_levels = { |
692 | "emerg" => 0, | |
693 | "alert" => 1, | |
694 | "crit" => 2, | |
695 | "critical" => 2, | |
696 | "err" => 3, | |
697 | "error" => 3, | |
698 | "warn" => 4, | |
699 | "warning" => 4, | |
700 | "notice" => 5, | |
701 | "info" => 6, | |
702 | "debug" => 7, | |
703 | }; | |
704 | ||
705 | sub log_msg { | |
706 | my ($priority, $ident, $msg) = @_; | |
707 | ||
708 | if (my $tmp = $log_levels->{$priority}) { | |
709 | $priority = $tmp; | |
710 | } | |
711 | ||
712 | die "need numeric log priority" if $priority !~ /^\d+$/; | |
713 | ||
714 | my $tag = PVE::SafeSyslog::tag(); | |
715 | ||
716 | $msg = "empty message" if !$msg; | |
717 | ||
718 | $ident = "" if !$ident; | |
8f2d54ff | 719 | $ident = encode("ascii", $ident, |
fe000966 DM |
720 | sub { sprintf "\\u%04x", shift }); |
721 | ||
8f2d54ff | 722 | my $ascii = encode("ascii", $msg, sub { sprintf "\\u%04x", shift }); |
fe000966 DM |
723 | |
724 | if ($ident) { | |
725 | syslog($priority, "<%s> %s", $ident, $ascii); | |
726 | } else { | |
727 | syslog($priority, "%s", $ascii); | |
728 | } | |
729 | ||
730 | eval { &$ipcc_log($priority, $ident, $tag, $ascii); }; | |
731 | ||
732 | syslog("err", "writing cluster log failed: $@") if $@; | |
733 | } | |
734 | ||
9d76a1bb DM |
735 | sub check_vmid_unused { |
736 | my ($vmid, $noerr) = @_; | |
c53b111f | 737 | |
9d76a1bb DM |
738 | my $vmlist = get_vmlist(); |
739 | ||
740 | my $d = $vmlist->{ids}->{$vmid}; | |
741 | return 1 if !defined($d); | |
c53b111f | 742 | |
9d76a1bb DM |
743 | return undef if $noerr; |
744 | ||
4f66b109 | 745 | my $vmtypestr = $d->{type} eq 'qemu' ? 'VM' : 'CT'; |
e75ccbee | 746 | die "$vmtypestr $vmid already exists on node '$d->{node}'\n"; |
9d76a1bb DM |
747 | } |
748 | ||
65ff467f DM |
749 | sub check_node_exists { |
750 | my ($nodename, $noerr) = @_; | |
751 | ||
752 | my $nodelist = $clinfo->{nodelist}; | |
753 | return 1 if $nodelist && $nodelist->{$nodename}; | |
754 | ||
755 | return undef if $noerr; | |
756 | ||
757 | die "no such cluster node '$nodename'\n"; | |
758 | } | |
759 | ||
fe000966 DM |
760 | # this is also used to get the IP of the local node |
761 | sub remote_node_ip { | |
762 | my ($nodename, $noerr) = @_; | |
763 | ||
764 | my $nodelist = $clinfo->{nodelist}; | |
765 | if ($nodelist && $nodelist->{$nodename}) { | |
766 | if (my $ip = $nodelist->{$nodename}->{ip}) { | |
fc31f517 WB |
767 | return $ip if !wantarray; |
768 | my $family = $nodelist->{$nodename}->{address_family}; | |
769 | if (!$family) { | |
770 | $nodelist->{$nodename}->{address_family} = | |
771 | $family = | |
772 | PVE::Tools::get_host_address_family($ip); | |
773 | } | |
14830160 | 774 | return wantarray ? ($ip, $family) : $ip; |
fe000966 DM |
775 | } |
776 | } | |
777 | ||
778 | # fallback: try to get IP by other means | |
e064c9b0 | 779 | return PVE::Network::get_ip_from_hostname($nodename, $noerr); |
fe000966 DM |
780 | } |
781 | ||
1904862a TL |
782 | sub get_node_fingerprint { |
783 | my ($node) = @_; | |
784 | ||
785 | my $cert_path = "/etc/pve/nodes/$node/pve-ssl.pem"; | |
786 | my $custom_cert_path = "/etc/pve/nodes/$node/pveproxy-ssl.pem"; | |
787 | ||
788 | $cert_path = $custom_cert_path if -f $custom_cert_path; | |
789 | ||
c92b7716 | 790 | return PVE::Certificate::get_certificate_fingerprint($cert_path); |
1904862a TL |
791 | } |
792 | ||
15df58e6 DM |
793 | # bash completion helpers |
794 | ||
795 | sub complete_next_vmid { | |
796 | ||
797 | my $vmlist = get_vmlist() || {}; | |
798 | my $idlist = $vmlist->{ids} || {}; | |
799 | ||
800 | for (my $i = 100; $i < 10000; $i++) { | |
801 | return [$i] if !defined($idlist->{$i}); | |
802 | } | |
803 | ||
804 | return []; | |
805 | } | |
806 | ||
87515b25 DM |
807 | sub complete_vmid { |
808 | ||
809 | my $vmlist = get_vmlist(); | |
810 | my $ids = $vmlist->{ids} || {}; | |
811 | ||
812 | return [ keys %$ids ]; | |
813 | } | |
814 | ||
15df58e6 DM |
815 | sub complete_local_vmid { |
816 | ||
817 | my $vmlist = get_vmlist(); | |
818 | my $ids = $vmlist->{ids} || {}; | |
819 | ||
820 | my $nodename = PVE::INotify::nodename(); | |
821 | ||
822 | my $res = []; | |
823 | foreach my $vmid (keys %$ids) { | |
824 | my $d = $ids->{$vmid}; | |
825 | next if !$d->{node} || $d->{node} ne $nodename; | |
826 | push @$res, $vmid; | |
827 | } | |
828 | ||
829 | return $res; | |
830 | } | |
831 | ||
4dd189df DM |
832 | sub complete_migration_target { |
833 | ||
834 | my $res = []; | |
835 | ||
836 | my $nodename = PVE::INotify::nodename(); | |
837 | ||
838 | my $nodelist = get_nodelist(); | |
839 | foreach my $node (@$nodelist) { | |
840 | next if $node eq $nodename; | |
841 | push @$res, $node; | |
842 | } | |
843 | ||
844 | return $res; | |
845 | } | |
846 | ||
1f1aef8b | 847 | |
a9965358 | 848 | # NOTE: filesystem must be offline here, no DB changes allowed |
c5204e14 | 849 | sub cfs_backup_database { |
e02bdaae TL |
850 | mkdir $dbbackupdir; |
851 | ||
e02bdaae | 852 | my $ctime = time(); |
a9965358 | 853 | my $backup_fn = "$dbbackupdir/config-$ctime.sql.gz"; |
e02bdaae | 854 | |
a9965358 | 855 | print "backup old database to '$backup_fn'\n"; |
e02bdaae | 856 | |
a9965358 TL |
857 | my $cmd = [ ['sqlite3', $dbfile, '.dump'], ['gzip', '-', \ ">${backup_fn}"] ]; |
858 | run_command($cmd, 'errmsg' => "cannot backup old database\n"); | |
e02bdaae | 859 | |
a9965358 TL |
860 | my $maxfiles = 10; # purge older backup |
861 | my $backups = [ sort { $b cmp $a } <$dbbackupdir/config-*.sql.gz> ]; | |
862 | ||
863 | if ((my $count = scalar(@$backups)) > $maxfiles) { | |
864 | foreach my $f (@$backups[$maxfiles..$count-1]) { | |
ee0daa88 | 865 | next if $f !~ m/^(\S+)$/; # untaint |
a9965358 TL |
866 | print "delete old backup '$1'\n"; |
867 | unlink $1; | |
868 | } | |
e02bdaae | 869 | } |
8f64504c | 870 | |
c5204e14 | 871 | return $dbfile; |
8f64504c | 872 | } |
e02bdaae | 873 | |
ac68281b | 874 | 1; |