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Commit | Line | Data |
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714a4016 DM |
1 | package PVE::HA::Env::PVE2; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
76737af5 DM |
5 | use POSIX qw(:errno_h :fcntl_h); |
6 | use IO::File; | |
115805fd | 7 | use IO::Socket::UNIX; |
714a4016 DM |
8 | |
9 | use PVE::SafeSyslog; | |
10 | use PVE::Tools; | |
abc920b4 | 11 | use PVE::Cluster qw(cfs_register_file cfs_read_file cfs_lock_file); |
022e4e79 DM |
12 | use PVE::INotify; |
13 | use PVE::RPCEnvironment; | |
714a4016 DM |
14 | |
15 | use PVE::HA::Tools; | |
16 | use PVE::HA::Env; | |
ce216792 | 17 | use PVE::HA::Config; |
714a4016 | 18 | |
022e4e79 DM |
19 | use PVE::QemuServer; |
20 | use PVE::API2::Qemu; | |
21 | ||
007fcc8b DM |
22 | my $lockdir = "/etc/pve/priv/lock"; |
23 | ||
ce216792 | 24 | my $manager_status_filename = "/etc/pve/ha/manager_status"; |
7a19642e DM |
25 | my $ha_groups_config = "/etc/pve/ha/groups.cfg"; |
26 | my $ha_resources_config = "/etc/pve/ha/resources.cfg"; | |
abc920b4 | 27 | |
95ea5d67 | 28 | # fixme: |
6cbcb5f7 DM |
29 | #cfs_register_file($ha_groups_config, |
30 | # sub { PVE::HA::Groups->parse_config(@_); }, | |
31 | # sub { PVE::HA::Groups->write_config(@_); }); | |
95ea5d67 DM |
32 | #cfs_register_file($ha_resources_config, |
33 | # sub { PVE::HA::Resources->parse_config(@_); }, | |
34 | # sub { PVE::HA::Resources->write_config(@_); }); | |
35 | ||
36 | sub read_resources_config { | |
37 | my $raw = ''; | |
38 | ||
39 | $raw = PVE::Tools::file_get_contents($ha_resources_config) | |
40 | if -f $ha_resources_config; | |
41 | ||
42 | return PVE::HA::Config::parse_resources_config($ha_resources_config, $raw); | |
43 | } | |
44 | ||
45 | sub write_resources_config { | |
46 | my ($cfg) = @_; | |
47 | ||
48 | my $raw = PVE::HA::Resources->write_config($ha_resources_config, $cfg); | |
49 | PVE::Tools::file_set_contents($ha_resources_config, $raw); | |
50 | } | |
51 | ||
52 | sub lock_ha_config { | |
53 | my ($code, $errmsg) = @_; | |
54 | ||
55 | # fixme: do not use cfs_lock_storage (replace with cfs_lock_ha) | |
56 | my $res = PVE::Cluster::cfs_lock_storage("_ha_crm_commands", undef, $code); | |
57 | my $err = $@; | |
58 | if ($err) { | |
59 | $errmsg ? die "$errmsg: $err" : die $err; | |
60 | } | |
61 | return $res; | |
62 | } | |
714a4016 DM |
63 | |
64 | sub new { | |
65 | my ($this, $nodename) = @_; | |
66 | ||
67 | die "missing nodename" if !$nodename; | |
68 | ||
69 | my $class = ref($this) || $this; | |
70 | ||
71 | my $self = bless {}, $class; | |
72 | ||
73 | $self->{nodename} = $nodename; | |
74 | ||
75 | return $self; | |
76 | } | |
77 | ||
78 | sub nodename { | |
79 | my ($self) = @_; | |
80 | ||
81 | return $self->{nodename}; | |
82 | } | |
83 | ||
84 | sub read_manager_status { | |
85 | my ($self) = @_; | |
86 | ||
87 | my $filename = $manager_status_filename; | |
88 | ||
89 | return PVE::HA::Tools::read_json_from_file($filename, {}); | |
90 | } | |
91 | ||
92 | sub write_manager_status { | |
93 | my ($self, $status_obj) = @_; | |
94 | ||
95 | my $filename = $manager_status_filename; | |
96 | ||
97 | PVE::HA::Tools::write_json_to_file($filename, $status_obj); | |
98 | } | |
99 | ||
c4a221bc DM |
100 | sub read_lrm_status { |
101 | my ($self, $node) = @_; | |
102 | ||
103 | $node = $self->{nodename} if !defined($node); | |
104 | ||
105 | my $filename = "/etc/pve/nodes/$node/lrm_status"; | |
106 | ||
107 | return PVE::HA::Tools::read_json_from_file($filename, {}); | |
108 | } | |
109 | ||
110 | sub write_lrm_status { | |
111 | my ($self, $status_obj) = @_; | |
112 | ||
6cbcb5f7 | 113 | my $node = $self->{nodename}; |
c4a221bc DM |
114 | |
115 | my $filename = "/etc/pve/nodes/$node/lrm_status"; | |
116 | ||
117 | PVE::HA::Tools::write_json_to_file($filename, $status_obj); | |
118 | } | |
119 | ||
ec046210 | 120 | sub service_config_exists { |
714a4016 | 121 | my ($self) = @_; |
ec046210 DM |
122 | |
123 | return -f $ha_resources_config ? 1 : 0; | |
714a4016 DM |
124 | } |
125 | ||
126 | sub read_service_config { | |
127 | my ($self) = @_; | |
128 | ||
95ea5d67 | 129 | my $res = read_resources_config(); |
ce216792 DM |
130 | |
131 | my $vmlist = PVE::Cluster::get_vmlist(); | |
132 | my $conf = {}; | |
133 | ||
134 | foreach my $sid (keys %{$res->{ids}}) { | |
135 | my $d = $res->{ids}->{$sid}; | |
b47a7a1b | 136 | my $name = PVE::HA::Tools::parse_sid($sid); |
7a19642e | 137 | $d->{state} = 'enabled' if !defined($d->{state}); |
ce216792 | 138 | if ($d->{type} eq 'pvevm') { |
b47a7a1b | 139 | if (my $vmd = $vmlist->{ids}->{$name}) { |
ce216792 | 140 | if (!$vmd) { |
b47a7a1b | 141 | warn "no such VM '$name'\n"; |
ce216792 DM |
142 | } else { |
143 | $d->{node} = $vmd->{node}; | |
144 | $conf->{$sid} = $d; | |
145 | } | |
146 | } else { | |
147 | if (defined($d->{node})) { | |
148 | $conf->{$sid} = $d; | |
149 | } else { | |
150 | warn "service '$sid' without node\n"; | |
151 | } | |
152 | } | |
153 | } | |
154 | } | |
155 | ||
156 | return $conf; | |
714a4016 DM |
157 | } |
158 | ||
8456bde2 | 159 | sub change_service_location { |
6da27e23 | 160 | my ($self, $sid, $current_node, $new_node) = @_; |
8456bde2 | 161 | |
6da27e23 DM |
162 | my ($type, $name) = PVE::HA::Tools::parse_sid($sid); |
163 | ||
164 | if ($type eq 'pvevm') { | |
165 | my $old = PVE::QemuServer::config_file($name, $current_node); | |
166 | my $new = PVE::QemuServer::config_file($name, $new_node); | |
167 | rename($old, $new) || | |
168 | die "rename '$old' to '$new' failed - $!\n"; | |
169 | } else { | |
170 | die "implement me"; | |
171 | } | |
8456bde2 DM |
172 | } |
173 | ||
abc920b4 DM |
174 | sub read_group_config { |
175 | my ($self) = @_; | |
176 | ||
ce216792 DM |
177 | # fixme: use cfs_read_file |
178 | ||
179 | my $raw = ''; | |
180 | ||
181 | $raw = PVE::Tools::file_get_contents($ha_groups_config) | |
182 | if -f $ha_groups_config; | |
183 | ||
184 | return PVE::HA::Config::parse_groups_config($ha_groups_config, $raw); | |
abc920b4 DM |
185 | } |
186 | ||
3b996922 DM |
187 | sub queue_crm_commands { |
188 | my ($self, $cmd) = @_; | |
189 | ||
ce216792 DM |
190 | chomp $cmd; |
191 | ||
192 | my $code = sub { | |
193 | my $data = ''; | |
194 | my $filename = "/etc/pve/ha/crm_commands"; | |
195 | if (-f $filename) { | |
196 | $data = PVE::Tools::file_get_contents($filename); | |
197 | } | |
198 | $data .= "$cmd\n"; | |
199 | PVE::Tools::file_set_contents($filename, $data); | |
200 | }; | |
201 | ||
95ea5d67 | 202 | return lock_ha_config($code); |
3b996922 DM |
203 | } |
204 | ||
205 | sub read_crm_commands { | |
206 | my ($self) = @_; | |
207 | ||
ce216792 DM |
208 | my $code = sub { |
209 | my $data = ''; | |
210 | ||
211 | my $filename = "/etc/pve/ha/crm_commands"; | |
212 | if (-f $filename) { | |
213 | $data = PVE::Tools::file_get_contents($filename); | |
214 | PVE::Tools::file_set_contents($filename, ''); | |
215 | } | |
216 | ||
217 | return $data; | |
218 | }; | |
219 | ||
95ea5d67 | 220 | return lock_ha_config($code); |
3b996922 DM |
221 | } |
222 | ||
714a4016 DM |
223 | # this should return a hash containing info |
224 | # what nodes are members and online. | |
225 | sub get_node_info { | |
226 | my ($self) = @_; | |
227 | ||
d706ef8b DM |
228 | my ($node_info, $quorate) = ({}, 0); |
229 | ||
230 | my $nodename = $self->{nodename}; | |
231 | ||
232 | $quorate = PVE::Cluster::check_cfs_quorum(1) || 0; | |
233 | ||
234 | my $members = PVE::Cluster::get_members(); | |
235 | ||
236 | foreach my $node (keys %$members) { | |
237 | my $d = $members->{$node}; | |
238 | $node_info->{$node}->{online} = $d->{online}; | |
239 | } | |
240 | ||
241 | $node_info->{$nodename}->{online} = 1; # local node is always up | |
242 | ||
243 | return ($node_info, $quorate); | |
714a4016 DM |
244 | } |
245 | ||
246 | sub log { | |
247 | my ($self, $level, $msg) = @_; | |
248 | ||
249 | chomp $msg; | |
250 | ||
251 | syslog($level, $msg); | |
252 | } | |
253 | ||
007fcc8b DM |
254 | my $last_lock_status = {}; |
255 | ||
256 | sub get_pve_lock { | |
257 | my ($self, $lockid) = @_; | |
714a4016 | 258 | |
007fcc8b | 259 | my $got_lock = 0; |
4d24e7db | 260 | |
4d24e7db DM |
261 | my $filename = "$lockdir/$lockid"; |
262 | ||
007fcc8b DM |
263 | my $last = $last_lock_status->{$lockid} || 0; |
264 | ||
265 | my $ctime = time(); | |
4d24e7db DM |
266 | |
267 | eval { | |
268 | ||
269 | mkdir $lockdir; | |
270 | ||
007fcc8b DM |
271 | # pve cluster filesystem not online |
272 | die "can't create '$lockdir' (pmxcfs not mounted?)\n" if ! -d $lockdir; | |
273 | ||
274 | if ($last && (($ctime - $last) < 100)) { # fixme: what timeout | |
275 | utime(0, $ctime, $filename) || # cfs lock update request | |
276 | die "cfs lock update failed - $!\n"; | |
277 | } else { | |
278 | ||
279 | # fixme: wait some time? | |
280 | if (!(mkdir $filename)) { | |
281 | utime 0, 0, $filename; # cfs unlock request | |
282 | die "can't get cfs lock\n"; | |
283 | } | |
284 | } | |
4d24e7db | 285 | |
007fcc8b | 286 | $got_lock = 1; |
4d24e7db DM |
287 | }; |
288 | ||
007fcc8b DM |
289 | my $err = $@; |
290 | ||
291 | $last_lock_status->{$lockid} = $got_lock ? $ctime : 0; | |
292 | ||
17e90af6 | 293 | if (!!$got_lock != !!$last) { |
007fcc8b DM |
294 | if ($got_lock) { |
295 | $self->log('info', "successfully aquired lock '$lockid'"); | |
296 | } else { | |
297 | my $msg = "lost lock '$lockid"; | |
298 | $msg .= " - $err" if $err; | |
299 | $self->log('err', $msg); | |
300 | } | |
301 | } | |
302 | ||
303 | return $got_lock; | |
304 | } | |
305 | ||
306 | sub get_ha_manager_lock { | |
307 | my ($self) = @_; | |
308 | ||
007fcc8b | 309 | return $self->get_pve_lock("ha_manager_lock"); |
714a4016 DM |
310 | } |
311 | ||
312 | sub get_ha_agent_lock { | |
714a4016 | 313 | my ($self, $node) = @_; |
007fcc8b | 314 | |
f5c29173 | 315 | $node = $self->nodename() if !defined($node); |
714a4016 | 316 | |
f5c29173 | 317 | return $self->get_pve_lock("ha_agent_${node}_lock"); |
714a4016 DM |
318 | } |
319 | ||
320 | sub quorate { | |
321 | my ($self) = @_; | |
322 | ||
4d24e7db DM |
323 | my $quorate = 0; |
324 | eval { | |
325 | $quorate = PVE::Cluster::check_cfs_quorum(); | |
326 | }; | |
327 | ||
328 | return $quorate; | |
714a4016 DM |
329 | } |
330 | ||
331 | sub get_time { | |
332 | my ($self) = @_; | |
333 | ||
334 | return time(); | |
335 | } | |
336 | ||
337 | sub sleep { | |
338 | my ($self, $delay) = @_; | |
339 | ||
340 | CORE::sleep($delay); | |
341 | } | |
342 | ||
343 | sub sleep_until { | |
344 | my ($self, $end_time) = @_; | |
345 | ||
346 | for (;;) { | |
347 | my $cur_time = time(); | |
348 | ||
349 | last if $cur_time >= $end_time; | |
350 | ||
351 | $self->sleep(1); | |
352 | } | |
353 | } | |
354 | ||
355 | sub loop_start_hook { | |
356 | my ($self) = @_; | |
357 | ||
4d24e7db DM |
358 | PVE::Cluster::cfs_update(); |
359 | ||
714a4016 DM |
360 | $self->{loop_start} = $self->get_time(); |
361 | } | |
362 | ||
363 | sub loop_end_hook { | |
364 | my ($self) = @_; | |
365 | ||
366 | my $delay = $self->get_time() - $self->{loop_start}; | |
367 | ||
368 | warn "loop take too long ($delay seconds)\n" if $delay > 30; | |
369 | } | |
370 | ||
76737af5 DM |
371 | my $watchdog_fh; |
372 | ||
714a4016 DM |
373 | sub watchdog_open { |
374 | my ($self) = @_; | |
375 | ||
76737af5 DM |
376 | die "watchdog already open\n" if defined($watchdog_fh); |
377 | ||
115805fd DM |
378 | $watchdog_fh = IO::Socket::UNIX->new( |
379 | Type => SOCK_STREAM(), | |
380 | Peer => "/run/watchdog-mux.sock") || | |
381 | die "unable to open watchdog socket - $!\n"; | |
382 | ||
76737af5 | 383 | $self->log('info', "watchdog active"); |
714a4016 DM |
384 | } |
385 | ||
386 | sub watchdog_update { | |
387 | my ($self, $wfh) = @_; | |
388 | ||
76737af5 DM |
389 | my $res = $watchdog_fh->syswrite("\0", 1); |
390 | if (!defined($res)) { | |
391 | $self->log('err', "watchdog update failed - $!\n"); | |
392 | return 0; | |
393 | } | |
394 | if ($res != 1) { | |
395 | $self->log('err', "watchdog update failed - write $res bytes\n"); | |
396 | return 0; | |
397 | } | |
398 | ||
399 | return 1; | |
714a4016 DM |
400 | } |
401 | ||
402 | sub watchdog_close { | |
403 | my ($self, $wfh) = @_; | |
404 | ||
76737af5 DM |
405 | $watchdog_fh->syswrite("V", 1); # magic watchdog close |
406 | if (!$watchdog_fh->close()) { | |
407 | $self->log('err', "watchdog close failed - $!"); | |
408 | } else { | |
409 | $watchdog_fh = undef; | |
410 | $self->log('info', "watchdog closed (disabled)"); | |
411 | } | |
714a4016 DM |
412 | } |
413 | ||
022e4e79 DM |
414 | sub upid_wait { |
415 | my ($self, $upid) = @_; | |
416 | ||
417 | my $task = PVE::Tools::upid_decode($upid); | |
418 | ||
419 | CORE::sleep(1); | |
420 | while (PVE::ProcFSTools::check_process_running($task->{pid}, $task->{pstart})) { | |
421 | $self->log('debug', "Task still active, waiting"); | |
422 | CORE::sleep(1); | |
423 | } | |
424 | } | |
425 | ||
0d1d32fb DM |
426 | sub can_fork { |
427 | my ($self) = @_; | |
428 | ||
429 | return 1; | |
430 | } | |
431 | ||
c4a221bc | 432 | sub exec_resource_agent { |
6dbf93a0 | 433 | my ($self, $sid, $service_config, $cmd, @params) = @_; |
c4a221bc | 434 | |
022e4e79 DM |
435 | # setup execution environment |
436 | ||
437 | $ENV{'PATH'} = '/sbin:/bin:/usr/sbin:/usr/bin'; | |
438 | ||
439 | PVE::INotify::inotify_close(); | |
440 | ||
441 | PVE::INotify::inotify_init(); | |
442 | ||
443 | PVE::Cluster::cfs_update(); | |
444 | ||
445 | my $nodename = $self->{nodename}; | |
446 | ||
447 | # fixme: return valid_exit code (instead of using die) ? | |
448 | ||
b47a7a1b DM |
449 | my ($service_type, $service_name) = PVE::HA::Tools::parse_sid($sid); |
450 | ||
022e4e79 DM |
451 | die "service type '$service_type'not implemented" if $service_type ne 'pvevm'; |
452 | ||
b47a7a1b | 453 | my $vmid = $service_name; |
022e4e79 DM |
454 | |
455 | my $running = PVE::QemuServer::check_running($vmid, 1); | |
456 | ||
457 | if ($cmd eq 'started') { | |
458 | ||
459 | # fixme: return valid_exit code | |
460 | die "service '$sid' not on this node" if $service_config->{node} ne $nodename; | |
461 | ||
462 | # fixme: count failures | |
463 | ||
464 | return 0 if $running; | |
465 | ||
466 | $self->log("info", "starting service $sid"); | |
467 | ||
468 | my $upid = PVE::API2::Qemu->vm_start({node => $nodename, vmid => $vmid}); | |
469 | $self->upid_wait($upid); | |
470 | ||
471 | $running = PVE::QemuServer::check_running($vmid, 1); | |
472 | ||
473 | if ($running) { | |
474 | $self->log("info", "service status $sid started"); | |
475 | return 0; | |
476 | } else { | |
477 | $self->log("info", "unable to start service $sid"); | |
478 | return 1; | |
479 | } | |
480 | ||
481 | } elsif ($cmd eq 'request_stop' || $cmd eq 'stopped') { | |
482 | ||
483 | # fixme: return valid_exit code | |
484 | die "service '$sid' not on this node" if $service_config->{node} ne $nodename; | |
485 | ||
486 | return 0 if !$running; | |
487 | ||
488 | $self->log("info", "stopping service $sid"); | |
489 | ||
490 | my $timeout = 60; # fixme: make this configurable | |
491 | ||
492 | my $param = { | |
493 | node => $nodename, | |
494 | vmid => $vmid, | |
495 | timeout => $timeout, | |
496 | forceStop => 1, | |
497 | }; | |
498 | ||
499 | my $upid = PVE::API2::Qemu->vm_shutdown($param); | |
500 | $self->upid_wait($upid); | |
501 | ||
502 | $running = PVE::QemuServer::check_running($vmid, 1); | |
503 | ||
504 | if (!$running) { | |
505 | $self->log("info", "service status $sid stopped"); | |
506 | return 0; | |
507 | } else { | |
508 | return 1; | |
509 | } | |
510 | ||
511 | } elsif ($cmd eq 'migrate' || $cmd eq 'relocate') { | |
512 | ||
6da27e23 DM |
513 | my $target = $params[0]; |
514 | die "$cmd '$sid' failed - missing target\n" if !defined($target); | |
e319b50c DM |
515 | |
516 | # fixme: return valid_exit code | |
517 | die "service '$sid' not on this node" if $service_config->{node} ne $nodename; | |
6da27e23 DM |
518 | |
519 | if ($service_config->{node} eq $target) { | |
520 | # already there | |
521 | return 0; | |
522 | } | |
523 | ||
524 | if (!$running) { | |
e319b50c | 525 | $self->change_service_location($sid, $nodename, $target); |
6da27e23 DM |
526 | $self->log("info", "service $sid moved to node '$target'"); |
527 | return 0; | |
528 | } else { | |
529 | # we alwas do live migration if VM is online | |
e319b50c | 530 | |
e319b50c DM |
531 | my $params = { |
532 | node => $nodename, | |
533 | vmid => $vmid, | |
534 | target => $target, | |
535 | online => 1, | |
536 | }; | |
537 | ||
538 | my $oldconfig = PVE::QemuServer::config_file($vmid, $nodename); | |
539 | ||
540 | my $upid = PVE::API2::Qemu->migrate_vm($params); | |
541 | $self->upid_wait($upid); | |
542 | ||
543 | # something went wrong if old config file is still there | |
544 | if (-f $oldconfig) { | |
545 | $self->log("err", "service $sid not moved (migration error)"); | |
546 | return 1; | |
547 | } | |
548 | ||
549 | return 0; | |
6da27e23 | 550 | } |
022e4e79 DM |
551 | |
552 | } | |
553 | ||
554 | die "implement me (cmd '$cmd')"; | |
c4a221bc DM |
555 | } |
556 | ||
714a4016 | 557 | 1; |