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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 $conf; | |
714a4016 DM |
157 | } |
158 | ||
8456bde2 DM |
159 | sub change_service_location { |
160 | my ($self, $sid, $node) = @_; | |
161 | ||
162 | die "implement me"; | |
163 | } | |
164 | ||
abc920b4 DM |
165 | sub read_group_config { |
166 | my ($self) = @_; | |
167 | ||
ce216792 DM |
168 | # fixme: use cfs_read_file |
169 | ||
170 | my $raw = ''; | |
171 | ||
172 | $raw = PVE::Tools::file_get_contents($ha_groups_config) | |
173 | if -f $ha_groups_config; | |
174 | ||
175 | return PVE::HA::Config::parse_groups_config($ha_groups_config, $raw); | |
abc920b4 DM |
176 | } |
177 | ||
3b996922 DM |
178 | sub queue_crm_commands { |
179 | my ($self, $cmd) = @_; | |
180 | ||
ce216792 DM |
181 | chomp $cmd; |
182 | ||
183 | my $code = sub { | |
184 | my $data = ''; | |
185 | my $filename = "/etc/pve/ha/crm_commands"; | |
186 | if (-f $filename) { | |
187 | $data = PVE::Tools::file_get_contents($filename); | |
188 | } | |
189 | $data .= "$cmd\n"; | |
190 | PVE::Tools::file_set_contents($filename, $data); | |
191 | }; | |
192 | ||
95ea5d67 | 193 | return lock_ha_config($code); |
3b996922 DM |
194 | } |
195 | ||
196 | sub read_crm_commands { | |
197 | my ($self) = @_; | |
198 | ||
ce216792 DM |
199 | my $code = sub { |
200 | my $data = ''; | |
201 | ||
202 | my $filename = "/etc/pve/ha/crm_commands"; | |
203 | if (-f $filename) { | |
204 | $data = PVE::Tools::file_get_contents($filename); | |
205 | PVE::Tools::file_set_contents($filename, ''); | |
206 | } | |
207 | ||
208 | return $data; | |
209 | }; | |
210 | ||
95ea5d67 | 211 | return lock_ha_config($code); |
3b996922 DM |
212 | } |
213 | ||
714a4016 DM |
214 | # this should return a hash containing info |
215 | # what nodes are members and online. | |
216 | sub get_node_info { | |
217 | my ($self) = @_; | |
218 | ||
d706ef8b DM |
219 | my ($node_info, $quorate) = ({}, 0); |
220 | ||
221 | my $nodename = $self->{nodename}; | |
222 | ||
223 | $quorate = PVE::Cluster::check_cfs_quorum(1) || 0; | |
224 | ||
225 | my $members = PVE::Cluster::get_members(); | |
226 | ||
227 | foreach my $node (keys %$members) { | |
228 | my $d = $members->{$node}; | |
229 | $node_info->{$node}->{online} = $d->{online}; | |
230 | } | |
231 | ||
232 | $node_info->{$nodename}->{online} = 1; # local node is always up | |
233 | ||
234 | return ($node_info, $quorate); | |
714a4016 DM |
235 | } |
236 | ||
237 | sub log { | |
238 | my ($self, $level, $msg) = @_; | |
239 | ||
240 | chomp $msg; | |
241 | ||
242 | syslog($level, $msg); | |
243 | } | |
244 | ||
007fcc8b DM |
245 | my $last_lock_status = {}; |
246 | ||
247 | sub get_pve_lock { | |
248 | my ($self, $lockid) = @_; | |
714a4016 | 249 | |
007fcc8b | 250 | my $got_lock = 0; |
4d24e7db | 251 | |
4d24e7db DM |
252 | my $filename = "$lockdir/$lockid"; |
253 | ||
007fcc8b DM |
254 | my $last = $last_lock_status->{$lockid} || 0; |
255 | ||
256 | my $ctime = time(); | |
4d24e7db DM |
257 | |
258 | eval { | |
259 | ||
260 | mkdir $lockdir; | |
261 | ||
007fcc8b DM |
262 | # pve cluster filesystem not online |
263 | die "can't create '$lockdir' (pmxcfs not mounted?)\n" if ! -d $lockdir; | |
264 | ||
265 | if ($last && (($ctime - $last) < 100)) { # fixme: what timeout | |
266 | utime(0, $ctime, $filename) || # cfs lock update request | |
267 | die "cfs lock update failed - $!\n"; | |
268 | } else { | |
269 | ||
270 | # fixme: wait some time? | |
271 | if (!(mkdir $filename)) { | |
272 | utime 0, 0, $filename; # cfs unlock request | |
273 | die "can't get cfs lock\n"; | |
274 | } | |
275 | } | |
4d24e7db | 276 | |
007fcc8b | 277 | $got_lock = 1; |
4d24e7db DM |
278 | }; |
279 | ||
007fcc8b DM |
280 | my $err = $@; |
281 | ||
282 | $last_lock_status->{$lockid} = $got_lock ? $ctime : 0; | |
283 | ||
17e90af6 | 284 | if (!!$got_lock != !!$last) { |
007fcc8b DM |
285 | if ($got_lock) { |
286 | $self->log('info', "successfully aquired lock '$lockid'"); | |
287 | } else { | |
288 | my $msg = "lost lock '$lockid"; | |
289 | $msg .= " - $err" if $err; | |
290 | $self->log('err', $msg); | |
291 | } | |
292 | } | |
293 | ||
294 | return $got_lock; | |
295 | } | |
296 | ||
297 | sub get_ha_manager_lock { | |
298 | my ($self) = @_; | |
299 | ||
007fcc8b | 300 | return $self->get_pve_lock("ha_manager_lock"); |
714a4016 DM |
301 | } |
302 | ||
303 | sub get_ha_agent_lock { | |
714a4016 | 304 | my ($self, $node) = @_; |
007fcc8b | 305 | |
f5c29173 | 306 | $node = $self->nodename() if !defined($node); |
714a4016 | 307 | |
f5c29173 | 308 | return $self->get_pve_lock("ha_agent_${node}_lock"); |
714a4016 DM |
309 | } |
310 | ||
311 | sub quorate { | |
312 | my ($self) = @_; | |
313 | ||
4d24e7db DM |
314 | my $quorate = 0; |
315 | eval { | |
316 | $quorate = PVE::Cluster::check_cfs_quorum(); | |
317 | }; | |
318 | ||
319 | return $quorate; | |
714a4016 DM |
320 | } |
321 | ||
322 | sub get_time { | |
323 | my ($self) = @_; | |
324 | ||
325 | return time(); | |
326 | } | |
327 | ||
328 | sub sleep { | |
329 | my ($self, $delay) = @_; | |
330 | ||
331 | CORE::sleep($delay); | |
332 | } | |
333 | ||
334 | sub sleep_until { | |
335 | my ($self, $end_time) = @_; | |
336 | ||
337 | for (;;) { | |
338 | my $cur_time = time(); | |
339 | ||
340 | last if $cur_time >= $end_time; | |
341 | ||
342 | $self->sleep(1); | |
343 | } | |
344 | } | |
345 | ||
346 | sub loop_start_hook { | |
347 | my ($self) = @_; | |
348 | ||
4d24e7db DM |
349 | PVE::Cluster::cfs_update(); |
350 | ||
714a4016 DM |
351 | $self->{loop_start} = $self->get_time(); |
352 | } | |
353 | ||
354 | sub loop_end_hook { | |
355 | my ($self) = @_; | |
356 | ||
357 | my $delay = $self->get_time() - $self->{loop_start}; | |
358 | ||
359 | warn "loop take too long ($delay seconds)\n" if $delay > 30; | |
360 | } | |
361 | ||
76737af5 DM |
362 | my $watchdog_fh; |
363 | ||
714a4016 DM |
364 | sub watchdog_open { |
365 | my ($self) = @_; | |
366 | ||
76737af5 DM |
367 | die "watchdog already open\n" if defined($watchdog_fh); |
368 | ||
115805fd DM |
369 | $watchdog_fh = IO::Socket::UNIX->new( |
370 | Type => SOCK_STREAM(), | |
371 | Peer => "/run/watchdog-mux.sock") || | |
372 | die "unable to open watchdog socket - $!\n"; | |
373 | ||
76737af5 | 374 | $self->log('info', "watchdog active"); |
714a4016 DM |
375 | } |
376 | ||
377 | sub watchdog_update { | |
378 | my ($self, $wfh) = @_; | |
379 | ||
76737af5 DM |
380 | my $res = $watchdog_fh->syswrite("\0", 1); |
381 | if (!defined($res)) { | |
382 | $self->log('err', "watchdog update failed - $!\n"); | |
383 | return 0; | |
384 | } | |
385 | if ($res != 1) { | |
386 | $self->log('err', "watchdog update failed - write $res bytes\n"); | |
387 | return 0; | |
388 | } | |
389 | ||
390 | return 1; | |
714a4016 DM |
391 | } |
392 | ||
393 | sub watchdog_close { | |
394 | my ($self, $wfh) = @_; | |
395 | ||
76737af5 DM |
396 | $watchdog_fh->syswrite("V", 1); # magic watchdog close |
397 | if (!$watchdog_fh->close()) { | |
398 | $self->log('err', "watchdog close failed - $!"); | |
399 | } else { | |
400 | $watchdog_fh = undef; | |
401 | $self->log('info', "watchdog closed (disabled)"); | |
402 | } | |
714a4016 DM |
403 | } |
404 | ||
022e4e79 DM |
405 | sub upid_wait { |
406 | my ($self, $upid) = @_; | |
407 | ||
408 | my $task = PVE::Tools::upid_decode($upid); | |
409 | ||
410 | CORE::sleep(1); | |
411 | while (PVE::ProcFSTools::check_process_running($task->{pid}, $task->{pstart})) { | |
412 | $self->log('debug', "Task still active, waiting"); | |
413 | CORE::sleep(1); | |
414 | } | |
415 | } | |
416 | ||
0d1d32fb DM |
417 | sub can_fork { |
418 | my ($self) = @_; | |
419 | ||
420 | return 1; | |
421 | } | |
422 | ||
c4a221bc | 423 | sub exec_resource_agent { |
6dbf93a0 | 424 | my ($self, $sid, $service_config, $cmd, @params) = @_; |
c4a221bc | 425 | |
022e4e79 DM |
426 | # setup execution environment |
427 | ||
428 | $ENV{'PATH'} = '/sbin:/bin:/usr/sbin:/usr/bin'; | |
429 | ||
430 | PVE::INotify::inotify_close(); | |
431 | ||
432 | PVE::INotify::inotify_init(); | |
433 | ||
434 | PVE::Cluster::cfs_update(); | |
435 | ||
436 | my $nodename = $self->{nodename}; | |
437 | ||
438 | # fixme: return valid_exit code (instead of using die) ? | |
439 | ||
b47a7a1b DM |
440 | my ($service_type, $service_name) = PVE::HA::Tools::parse_sid($sid); |
441 | ||
022e4e79 DM |
442 | die "service type '$service_type'not implemented" if $service_type ne 'pvevm'; |
443 | ||
b47a7a1b | 444 | my $vmid = $service_name; |
022e4e79 DM |
445 | |
446 | my $running = PVE::QemuServer::check_running($vmid, 1); | |
447 | ||
448 | if ($cmd eq 'started') { | |
449 | ||
450 | # fixme: return valid_exit code | |
451 | die "service '$sid' not on this node" if $service_config->{node} ne $nodename; | |
452 | ||
453 | # fixme: count failures | |
454 | ||
455 | return 0 if $running; | |
456 | ||
457 | $self->log("info", "starting service $sid"); | |
458 | ||
459 | my $upid = PVE::API2::Qemu->vm_start({node => $nodename, vmid => $vmid}); | |
460 | $self->upid_wait($upid); | |
461 | ||
462 | $running = PVE::QemuServer::check_running($vmid, 1); | |
463 | ||
464 | if ($running) { | |
465 | $self->log("info", "service status $sid started"); | |
466 | return 0; | |
467 | } else { | |
468 | $self->log("info", "unable to start service $sid"); | |
469 | return 1; | |
470 | } | |
471 | ||
472 | } elsif ($cmd eq 'request_stop' || $cmd eq 'stopped') { | |
473 | ||
474 | # fixme: return valid_exit code | |
475 | die "service '$sid' not on this node" if $service_config->{node} ne $nodename; | |
476 | ||
477 | return 0 if !$running; | |
478 | ||
479 | $self->log("info", "stopping service $sid"); | |
480 | ||
481 | my $timeout = 60; # fixme: make this configurable | |
482 | ||
483 | my $param = { | |
484 | node => $nodename, | |
485 | vmid => $vmid, | |
486 | timeout => $timeout, | |
487 | forceStop => 1, | |
488 | }; | |
489 | ||
490 | my $upid = PVE::API2::Qemu->vm_shutdown($param); | |
491 | $self->upid_wait($upid); | |
492 | ||
493 | $running = PVE::QemuServer::check_running($vmid, 1); | |
494 | ||
495 | if (!$running) { | |
496 | $self->log("info", "service status $sid stopped"); | |
497 | return 0; | |
498 | } else { | |
499 | return 1; | |
500 | } | |
501 | ||
502 | } elsif ($cmd eq 'migrate' || $cmd eq 'relocate') { | |
503 | ||
504 | # implement me | |
505 | ||
506 | } | |
507 | ||
508 | die "implement me (cmd '$cmd')"; | |
c4a221bc DM |
509 | } |
510 | ||
714a4016 | 511 | 1; |