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Commit | Line | Data |
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58a3c91c FG |
1 | package PVE::AbstractMigrate; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5 | use POSIX qw(strftime); | |
1c960710 | 6 | use JSON; |
58a3c91c | 7 | use PVE::Tools; |
9591475a | 8 | use PVE::Cluster; |
96c08a9d | 9 | use PVE::DataCenterConfig; |
1c960710 | 10 | use PVE::ReplicationState; |
58a3c91c FG |
11 | |
12 | my $msg2text = sub { | |
13 | my ($level, $msg) = @_; | |
14 | ||
15 | chomp $msg; | |
16 | ||
17 | return '' if !$msg; | |
18 | ||
19 | my $res = ''; | |
20 | ||
9ed0fe88 | 21 | my $tstr = strftime("%F %H:%M:%S", localtime); |
58a3c91c FG |
22 | |
23 | foreach my $line (split (/\n/, $msg)) { | |
24 | if ($level eq 'err') { | |
25 | $res .= "$tstr ERROR: $line\n"; | |
26 | } else { | |
27 | $res .= "$tstr $line\n"; | |
28 | } | |
29 | } | |
30 | ||
31 | return $res; | |
32 | }; | |
33 | ||
34 | sub log { | |
35 | my ($self, $level, $msg) = @_; | |
36 | ||
37 | chomp $msg; | |
38 | ||
39 | return if !$msg; | |
40 | ||
41 | print &$msg2text($level, $msg); | |
42 | } | |
43 | ||
44 | sub cmd { | |
45 | my ($self, $cmd, %param) = @_; | |
46 | ||
47 | my $logfunc = sub { | |
48 | my $line = shift; | |
49 | $self->log('info', $line); | |
50 | }; | |
51 | ||
52 | $self->log('info', "# " . PVE::Tools::cmd2string($cmd)); | |
53 | ||
54 | PVE::Tools::run_command($cmd, %param, outfunc => $logfunc, errfunc => $logfunc); | |
55 | } | |
56 | ||
57 | my $run_command_quiet_full = sub { | |
58 | my ($self, $cmd, $logerr, %param) = @_; | |
59 | ||
60 | my $log = ''; | |
61 | my $logfunc = sub { | |
62 | my $line = shift; | |
63 | $log .= &$msg2text('info', $line);; | |
64 | }; | |
65 | ||
66 | eval { PVE::Tools::run_command($cmd, %param, outfunc => $logfunc, errfunc => $logfunc); }; | |
67 | if (my $err = $@) { | |
68 | $self->log('info', "# " . PVE::Tools::cmd2string($cmd)); | |
69 | print $log; | |
70 | if ($logerr) { | |
71 | $self->{errors} = 1; | |
72 | $self->log('err', $err); | |
73 | } else { | |
74 | die $err; | |
75 | } | |
76 | } | |
77 | }; | |
78 | ||
79 | sub cmd_quiet { | |
80 | my ($self, $cmd, %param) = @_; | |
81 | return &$run_command_quiet_full($self, $cmd, 0, %param); | |
82 | } | |
83 | ||
84 | sub cmd_logerr { | |
85 | my ($self, $cmd, %param) = @_; | |
86 | return &$run_command_quiet_full($self, $cmd, 1, %param); | |
87 | } | |
88 | ||
58a3c91c FG |
89 | my $eval_int = sub { |
90 | my ($self, $func, @param) = @_; | |
91 | ||
92 | eval { | |
ee966a3f TL |
93 | local $SIG{INT} = |
94 | local $SIG{TERM} = | |
95 | local $SIG{QUIT} = | |
96 | local $SIG{HUP} = | |
97 | local $SIG{PIPE} = sub { | |
98 | $self->{delayed_interrupt} = 0; | |
99 | die "interrupted by signal\n"; | |
58a3c91c FG |
100 | }; |
101 | ||
102 | my $di = $self->{delayed_interrupt}; | |
103 | $self->{delayed_interrupt} = 0; | |
104 | ||
105 | die "interrupted by signal\n" if $di; | |
106 | ||
107 | &$func($self, @param); | |
108 | }; | |
109 | }; | |
110 | ||
9591475a | 111 | # FIXME: nodeip is now unused |
58a3c91c FG |
112 | sub migrate { |
113 | my ($class, $node, $nodeip, $vmid, $opts) = @_; | |
114 | ||
115 | $class = ref($class) || $class; | |
116 | ||
40318e97 WB |
117 | my $dc_conf = PVE::Cluster::cfs_read_file('datacenter.cfg'); |
118 | ||
9591475a WB |
119 | my $migration_network = $opts->{migration_network}; |
120 | if (!defined($migration_network)) { | |
9591475a WB |
121 | $migration_network = $dc_conf->{migration}->{network}; |
122 | } | |
123 | my $ssh_info = PVE::Cluster::get_ssh_info($node, $migration_network); | |
124 | $nodeip = $ssh_info->{ip}; | |
125 | ||
40318e97 WB |
126 | my $migration_type = 'secure'; |
127 | if (defined($opts->{migration_type})) { | |
128 | $migration_type = $opts->{migration_type}; | |
129 | } elsif (defined($dc_conf->{migration}->{type})) { | |
130 | $migration_type = $dc_conf->{migration}->{type}; | |
131 | } | |
132 | $opts->{migration_type} = $migration_type; | |
133 | ||
58a3c91c FG |
134 | my $self = { |
135 | delayed_interrupt => 0, | |
136 | opts => $opts, | |
137 | vmid => $vmid, | |
138 | node => $node, | |
9591475a | 139 | ssh_info => $ssh_info, |
58a3c91c | 140 | nodeip => $nodeip, |
9591475a | 141 | rem_ssh => PVE::Cluster::ssh_info_to_command($ssh_info) |
58a3c91c FG |
142 | }; |
143 | ||
144 | $self = bless $self, $class; | |
145 | ||
146 | my $starttime = time(); | |
147 | ||
ee966a3f TL |
148 | local $SIG{INT} = |
149 | local $SIG{TERM} = | |
150 | local $SIG{QUIT} = | |
151 | local $SIG{HUP} = | |
152 | local $SIG{PIPE} = sub { | |
153 | $self->log('err', "received interrupt - delayed"); | |
154 | $self->{delayed_interrupt} = 1; | |
58a3c91c FG |
155 | }; |
156 | ||
58a3c91c FG |
157 | # lock container during migration |
158 | eval { $self->lock_vm($self->{vmid}, sub { | |
159 | ||
160 | $self->{running} = 0; | |
161 | &$eval_int($self, sub { $self->{running} = $self->prepare($self->{vmid}); }); | |
162 | die $@ if $@; | |
163 | ||
9591475a | 164 | if (defined($migration_network)) { |
58a3c91c FG |
165 | $self->log('info', "use dedicated network address for sending " . |
166 | "migration traffic ($self->{nodeip})"); | |
167 | ||
168 | # test if we can connect to new IP | |
169 | my $cmd = [ @{$self->{rem_ssh}}, '/bin/true' ]; | |
170 | eval { $self->cmd_quiet($cmd); }; | |
171 | die "Can't connect to destination address ($self->{nodeip}) using " . | |
172 | "public key authentication\n" if $@; | |
173 | } | |
174 | ||
175 | &$eval_int($self, sub { $self->phase1($self->{vmid}); }); | |
176 | my $err = $@; | |
177 | if ($err) { | |
178 | $self->log('err', $err); | |
179 | eval { $self->phase1_cleanup($self->{vmid}, $err); }; | |
180 | if (my $tmperr = $@) { | |
181 | $self->log('err', $tmperr); | |
182 | } | |
183 | eval { $self->final_cleanup($self->{vmid}); }; | |
184 | if (my $tmperr = $@) { | |
185 | $self->log('err', $tmperr); | |
186 | } | |
187 | die $err; | |
188 | } | |
189 | ||
190 | # vm is now owned by other node | |
191 | # Note: there is no VM config file on the local node anymore | |
192 | ||
193 | if ($self->{running}) { | |
194 | ||
195 | &$eval_int($self, sub { $self->phase2($self->{vmid}); }); | |
196 | my $phase2err = $@; | |
197 | if ($phase2err) { | |
198 | $self->{errors} = 1; | |
199 | $self->log('err', "online migrate failure - $phase2err"); | |
200 | } | |
201 | eval { $self->phase2_cleanup($self->{vmid}, $phase2err); }; | |
202 | if (my $err = $@) { | |
203 | $self->log('err', $err); | |
204 | $self->{errors} = 1; | |
205 | } | |
206 | } | |
207 | ||
208 | # phase3 (finalize) | |
209 | &$eval_int($self, sub { $self->phase3($self->{vmid}); }); | |
210 | my $phase3err = $@; | |
211 | if ($phase3err) { | |
212 | $self->log('err', $phase3err); | |
213 | $self->{errors} = 1; | |
214 | } | |
215 | eval { $self->phase3_cleanup($self->{vmid}, $phase3err); }; | |
216 | if (my $err = $@) { | |
217 | $self->log('err', $err); | |
218 | $self->{errors} = 1; | |
219 | } | |
220 | eval { $self->final_cleanup($self->{vmid}); }; | |
221 | if (my $err = $@) { | |
222 | $self->log('err', $err); | |
223 | $self->{errors} = 1; | |
224 | } | |
225 | })}; | |
226 | ||
227 | my $err = $@; | |
228 | ||
229 | my $delay = time() - $starttime; | |
230 | my $mins = int($delay/60); | |
231 | my $secs = $delay - $mins*60; | |
232 | my $hours = int($mins/60); | |
233 | $mins = $mins - $hours*60; | |
234 | ||
235 | my $duration = sprintf "%02d:%02d:%02d", $hours, $mins, $secs; | |
236 | ||
237 | if ($err) { | |
238 | $self->log('err', "migration aborted (duration $duration): $err"); | |
239 | die "migration aborted\n"; | |
240 | } | |
241 | ||
242 | if ($self->{errors}) { | |
243 | $self->log('err', "migration finished with problems (duration $duration)"); | |
244 | die "migration problems\n" | |
245 | } | |
246 | ||
247 | $self->log('info', "migration finished successfully (duration $duration)"); | |
248 | } | |
249 | ||
250 | sub lock_vm { | |
251 | my ($self, $vmid, $code, @param) = @_; | |
252 | ||
253 | die "abstract method - implement me"; | |
254 | } | |
255 | ||
256 | sub prepare { | |
257 | my ($self, $vmid) = @_; | |
258 | ||
259 | die "abstract method - implement me"; | |
260 | ||
261 | # return $running; | |
262 | } | |
263 | ||
264 | # transfer all data and move VM config files | |
265 | sub phase1 { | |
266 | my ($self, $vmid) = @_; | |
267 | die "abstract method - implement me"; | |
268 | } | |
269 | ||
270 | # only called if there are errors in phase1 | |
271 | sub phase1_cleanup { | |
272 | my ($self, $vmid, $err) = @_; | |
273 | die "abstract method - implement me"; | |
274 | } | |
275 | ||
276 | # only called when VM is running and phase1 was successful | |
277 | sub phase2 { | |
278 | my ($self, $vmid) = @_; | |
279 | die "abstract method - implement me"; | |
280 | } | |
281 | ||
282 | # only called when VM is running and phase1 was successful | |
283 | sub phase2_cleanup { | |
284 | my ($self, $vmid, $err) = @_; | |
285 | }; | |
286 | ||
287 | # only called when phase1 was successful | |
288 | sub phase3 { | |
289 | my ($self, $vmid) = @_; | |
290 | } | |
291 | ||
292 | # only called when phase1 was successful | |
293 | sub phase3_cleanup { | |
294 | my ($self, $vmid, $err) = @_; | |
295 | } | |
296 | ||
297 | # final cleanup - always called | |
298 | sub final_cleanup { | |
299 | my ($self, $vmid) = @_; | |
300 | die "abstract method - implement me"; | |
301 | } | |
302 | ||
1c960710 DM |
303 | # transfer replication state helper - call this before moving the guest config |
304 | # - just log the error is something fails | |
305 | sub transfer_replication_state { | |
306 | my ($self) = @_; | |
307 | ||
308 | my $local_node = PVE::INotify::nodename(); | |
309 | ||
310 | eval { | |
311 | my $stateobj = PVE::ReplicationState::read_state(); | |
312 | my $vmstate = PVE::ReplicationState::extract_vmid_tranfer_state($stateobj, $self->{vmid}, $self->{node}, $local_node); | |
313 | # This have to be quoted when it run it over ssh. | |
314 | my $state = PVE::Tools::shellquote(encode_json($vmstate)); | |
315 | my $cmd = [ @{$self->{rem_ssh}}, 'pvesr', 'set-state', $self->{vmid}, $state]; | |
316 | $self->cmd($cmd); | |
317 | }; | |
318 | if (my $err = $@) { | |
319 | $self->log('err', "transfer replication state failed - $err"); | |
320 | $self->{errors} = 1; | |
321 | } | |
322 | } | |
323 | ||
324 | # switch replication job target - call this after moving the guest config | |
325 | # - does nothing if there is no relevant replication job | |
326 | # - just log the error is something fails | |
327 | sub switch_replication_job_target { | |
328 | my ($self) = @_; | |
329 | ||
330 | my $local_node = PVE::INotify::nodename(); | |
331 | ||
332 | eval { PVE::ReplicationConfig::switch_replication_job_target($self->{vmid}, $self->{node}, $local_node); }; | |
333 | if (my $err = $@) { | |
334 | $self->log('err', "switch replication job target failed - $err"); | |
335 | $self->{errors} = 1; | |
336 | } | |
337 | } | |
338 | ||
58a3c91c | 339 | 1; |