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418 lines
16 KiB
418 lines
16 KiB
#!/usr/bin/perl |
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# |
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# This migrates servers from one node to another. It can operate on a single server, or it can be used to |
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# migrate all servers to a given host. |
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# |
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# Exit codes; |
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# 0 = Normal exit. |
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# 1 = Any problem that causes an early exit. |
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# |
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# NOTE: as per qemu.conf defaults, a maximum of 63 live migrations can happen at the same time. We need to |
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# to count how many servers there are and, if the number is over 63, update qemu.conf. The current |
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# range of ports available for live migration can be found here: |
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# - my ($migration_minimum, $migration_maximum) = $anvil->Network->_get_live_migration_ports(); |
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use strict; |
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use warnings; |
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use Anvil::Tools; |
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require POSIX; |
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use Term::Cap; |
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my $THIS_FILE = ($0 =~ /^.*\/(.*)$/)[0]; |
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my $running_directory = ($0 =~ /^(.*?)\/$THIS_FILE$/)[0]; |
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if (($running_directory =~ /^\./) && ($ENV{PWD})) |
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{ |
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$running_directory =~ s/^\./$ENV{PWD}/; |
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} |
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# Turn off buffering so that the pinwheel will display while waiting for the SSH call(s) to complete. |
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$| = 1; |
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my $anvil = Anvil::Tools->new(); |
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# Read switches (target ([user@]host[:port]) and the file with the target's password. If the password is |
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# passed directly, it will be used. Otherwise, the password will be read from the database. |
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$anvil->data->{switches}{'job-uuid'} = ""; |
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$anvil->data->{switches}{'no-wait'} = ""; # We normall wait for each migation to finish. This skips that. With '--all', this causes all migrations to run in parallel |
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$anvil->data->{switches}{'server'} = ""; |
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$anvil->data->{switches}{'server-uuid'} = ""; |
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$anvil->data->{switches}{'target'} = ""; |
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$anvil->Get->switches; |
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { |
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'switches::job-uuid' => $anvil->data->{switches}{'job-uuid'}, |
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'switches::no-wait' => $anvil->data->{switches}{'no-wait'}, |
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'switches::server' => $anvil->data->{switches}{'server'}, |
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'switches::server-uuid' => $anvil->data->{switches}{'server-uuid'}, |
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'switches::target' => $anvil->data->{switches}{'target'}, |
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}}); |
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 2, secure => 0, key => "log_0115", variables => { program => $THIS_FILE }}); |
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 'switches::job-uuid' => $anvil->data->{switches}{'job-uuid'} }}); |
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$anvil->Database->connect(); |
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 3, secure => 0, key => "log_0132"}); |
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if (not $anvil->data->{sys}{database}{connections}) |
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{ |
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# No databases, update the job, sleep for a bit and then exit. The daemon will pick it up and try |
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# again after we exit. |
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 0, priority => "err", key => "error_0075"}); |
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sleep 10; |
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$anvil->nice_exit({exit_code => 1}); |
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} |
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if ($anvil->data->{switches}{'job-uuid'}) |
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{ |
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# Load the job data. |
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$anvil->Job->clear(); |
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$anvil->Job->get_job_details(); |
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$anvil->Job->update_progress({ |
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progress => 1, |
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job_picked_up_by => $$, |
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job_picked_up_at => time, |
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message => "job_0290", |
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}); |
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# Pull out the job data. |
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foreach my $line (split/\n/, $anvil->data->{jobs}{job_data}) |
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{ |
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if ($line =~ /server=(.*?)$/) |
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{ |
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$anvil->data->{switches}{'server'} = $1; |
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { |
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'switches::server' => $anvil->data->{switches}{'server'}, |
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}}); |
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} |
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if ($line =~ /server-uuid=(.*?)$/) |
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{ |
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$anvil->data->{switches}{'server-uuid'} = $1; |
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { |
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'switches::server-uuid' => $anvil->data->{switches}{'server-uuid'}, |
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}}); |
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} |
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} |
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} |
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# Now check that we have a server. If it's a server_uuid, read the server name. |
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if ($anvil->data->{switches}{'server-uuid'}) |
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{ |
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# Convert the server_uuid to a server_name. |
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my $query = "SELECT server_name FROM servers WHERE server_uuid = ".$anvil->Database->quote($anvil->data->{switches}{'server-uuid'}).";"; |
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { query => $query }}); |
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my $server_name = $anvil->Database->query({query => $query, source => $THIS_FILE, line => __LINE__})->[0]->[0]; |
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$server_name = "" if not defined $server_name; |
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { server_name => $server_name }}); |
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if ($server_name) |
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{ |
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$anvil->data->{switches}{'server'} = $server_name; |
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { |
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'switches::server' => $anvil->data->{switches}{'server'}, |
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}}); |
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} |
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else |
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{ |
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# Invalid server UUID. |
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 0, priority => "err", key => "error_0269", variables => { |
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server_uuid => $anvil->data->{switches}{'server-uuid'}, |
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}}); |
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$anvil->Job->update_progress({progress => 100, message => "error_0269,!!server_uuid!".$anvil->data->{switches}{'server-uuid'}."!!"}); |
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$anvil->nice_exit({exit_code => 1}); |
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} |
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} |
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# Do we have a server name? |
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if (not $anvil->data->{switches}{'server'}) |
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{ |
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# Unable to proceed. |
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 0, priority => "err", key => "error_0270"}); |
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$anvil->Job->update_progress({progress => 100, message => "error_0270"}); |
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$anvil->nice_exit({exit_code => 1}); |
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} |
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# Are we a node or DR host? |
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$anvil->data->{sys}{host_type} = $anvil->Get->host_type(); |
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if ($anvil->data->{sys}{host_type} ne "node") |
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{ |
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 0, priority => "err", key => "error_0271"}); |
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$anvil->Job->update_progress({progress => 100, message => "error_0271"}); |
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$anvil->nice_exit({exit_code => 1}); |
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} |
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# Make sure that we're in an Anvil! system. |
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$anvil->data->{sys}{anvil_uuid} = $anvil->Cluster->get_anvil_uuid(); |
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if (not $anvil->data->{sys}{anvil_uuid}) |
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{ |
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 0, priority => "err", key => "error_0260"}); |
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$anvil->Job->update_progress({progress => 100, message => "error_0260"}); |
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$anvil->nice_exit({exit_code => 1}); |
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} |
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# Do we have a target? |
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if (not $anvil->data->{switches}{'target'}) |
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{ |
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# Unable to proceed. |
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 0, priority => "err", key => "error_0272"}); |
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$anvil->Job->update_progress({progress => 100, message => "error_0272"}); |
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$anvil->nice_exit({exit_code => 1}); |
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} |
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# This is copied from anvil-boot-server, but it works here as well. We can't use 'pcs' without pacemaker |
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# being up. |
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wait_for_pacemaker($anvil); |
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# Make sure the target node is valid. |
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find_target($anvil); |
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# If 'server' is 'all', migrate all servers. |
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if (lc($anvil->data->{switches}{'server'}) eq "all") |
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{ |
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migrate_all_servers($anvil); |
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} |
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else |
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{ |
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migrate_server($anvil, $anvil->data->{switches}{'server'}, 50); |
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} |
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 1, key => "job_0281"}); |
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$anvil->Job->update_progress({progress => 100, message => "job_0281"}); |
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$anvil->nice_exit({exit_code => 0}); |
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############################################################################################################# |
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# Functions # |
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############################################################################################################# |
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sub migrate_server |
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{ |
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my ($anvil, $server, $progress) = @_; |
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { |
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server => $server, |
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progress => $progress, |
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}}); |
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# Is the server in the cluster? |
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if (not exists $anvil->data->{cib}{parsed}{data}{server}{$server}) |
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{ |
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# Nope. |
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 0, priority => "err", key => "error_0158", variables => { server => $server }}); |
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$anvil->Job->update_progress({progress => 100, message => "error_0158,!!server!".$server."!!"}); |
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$anvil->nice_exit({exit_code => 1}); |
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} |
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my $status = $anvil->data->{cib}{parsed}{data}{server}{$server}{status}; |
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { status => $status }}); |
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if ($status eq "off") |
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{ |
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# It's off already |
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 1, key => "job_0284", variables => { server => $server }}); |
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$anvil->Job->update_progress({progress => $progress, message => "job_0284,!!server!".$server."!!"}); |
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return(0); |
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} |
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### TODO: Record past migration times so that we give the user a estimate of how long it will take. |
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# Now migrate. |
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my $wait = $anvil->data->{switches}{'no-wait'} ? 0 : 1; |
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 1, key => "job_0293", variables => { |
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server => $server, |
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target => $anvil->data->{sys}{target}, |
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}}); |
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$anvil->Job->update_progress({progress => $progress, message => "job_0293,!!server!".$server."!!,!!target!".$anvil->data->{sys}{target}."!!"}); |
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my $problem = $anvil->Cluster->migrate_server({ |
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debug => 2, |
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server => $server, |
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node => $anvil->data->{sys}{target}, |
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'wait' => $wait, |
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}); |
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { problem => $problem }}); |
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if ($problem) |
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{ |
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# Failed, abort. |
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 0, priority => "err", key => "error_0274", variables => { server => $server }}); |
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$anvil->Job->update_progress({progress => 100, message => "error_0274,!!server!".$server."!!"}); |
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$anvil->nice_exit({exit_code => 1}); |
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} |
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else |
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{ |
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if ($wait) |
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{ |
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# Migrated! |
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 1, key => "job_0292", variables => { |
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server => $server, |
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target => $anvil->data->{sys}{target}, |
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}}); |
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$anvil->Job->update_progress({progress => $progress, message => "job_0292,!!server!".$server."!!,!!target!".$anvil->data->{sys}{target}."!!"}); |
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} |
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else |
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{ |
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# Migration requested. |
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 1, key => "job_0294", variables => { server => $server }}); |
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$anvil->Job->update_progress({progress => $progress, message => "job_0294,!!server!".$server."!!"}); |
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} |
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} |
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return(0); |
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} |
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sub migrate_all_servers |
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{ |
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my ($anvil) = @_; |
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# We top out at 90, bottom is 20. |
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my $server_count = keys %{$anvil->data->{cib}{parsed}{data}{server}}; |
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my $increment = int(70 / $server_count); |
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my $percent = 15; |
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { |
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server_count => $server_count, |
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increment => $increment, |
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}}); |
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foreach my $server (sort {$a cmp $b} keys %{$anvil->data->{cib}{parsed}{data}{server}}) |
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{ |
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my $status = $anvil->data->{cib}{parsed}{data}{server}{$server}{status}; |
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my $host_name = $anvil->data->{cib}{parsed}{data}{server}{$server}{host_name}; |
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my $role = $anvil->data->{cib}{parsed}{data}{server}{$server}{role}; |
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my $active = $anvil->data->{cib}{parsed}{data}{server}{$server}{active}; |
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { |
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's1:server' => $server, |
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's2:status' => $status, |
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's2:host_name' => $host_name, |
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's4:role' => $role, |
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's5:active' => $active, |
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}}); |
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if ($status ne "off") |
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{ |
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# Migrate it. |
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$percent += $increment; |
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migrate_server($anvil, $server, $percent); |
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} |
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} |
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return(0); |
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} |
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sub find_target |
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{ |
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my ($anvil) = @_; |
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# Convert the host names to short names for easier matching. |
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my $short_target_name = $anvil->data->{switches}{'target'}; |
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$short_target_name =~ s/\..*$//; |
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my $short_local_name = $anvil->data->{cib}{parsed}{'local'}{name}; |
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$short_local_name =~ s/\..*$//; |
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my $short_peer_name = $anvil->data->{cib}{parsed}{peer}{name}; |
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$short_peer_name =~ s/\..*$//; |
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { |
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"s1:short_target_name" => $short_target_name, |
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"s2:short_local_name" => $short_local_name, |
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"s3:short_peer_name" => $short_peer_name, |
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}}); |
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$anvil->data->{sys}{source} = ""; |
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$anvil->data->{sys}{target} = ""; |
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if (lc($anvil->data->{switches}{'target'}) eq "peer") |
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{ |
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# Migrate to the peer. |
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$anvil->data->{sys}{source} = $anvil->data->{cib}{parsed}{'local'}{name}; |
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$anvil->data->{sys}{target} = $anvil->data->{cib}{parsed}{peer}{name}; |
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { |
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"sys::source" => $anvil->data->{sys}{source}, |
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"sys::target" => $anvil->data->{sys}{target}, |
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}}); |
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} |
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elsif ((lc($anvil->data->{switches}{'target'}) eq "local") or (lc($anvil->data->{switches}{'target'}) eq "here")) |
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{ |
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# Migrate to the this machine. |
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$anvil->data->{sys}{source} = $anvil->data->{cib}{parsed}{peer}{name}; |
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$anvil->data->{sys}{target} = $anvil->data->{cib}{parsed}{'local'}{name}; |
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { |
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"sys::source" => $anvil->data->{sys}{source}, |
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"sys::target" => $anvil->data->{sys}{target}, |
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}}); |
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} |
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elsif (lc($short_target_name) eq lc($short_peer_name)) |
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{ |
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# Migrate to the peer. |
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$anvil->data->{sys}{source} = $anvil->data->{cib}{parsed}{'local'}{name}; |
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$anvil->data->{sys}{target} = $anvil->data->{cib}{parsed}{peer}{name}; |
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { |
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"sys::source" => $anvil->data->{sys}{source}, |
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"sys::target" => $anvil->data->{sys}{target}, |
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}}); |
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} |
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elsif (lc($short_target_name) eq lc($short_local_name)) |
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{ |
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# Migrate to the this machine. |
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$anvil->data->{sys}{source} = $anvil->data->{cib}{parsed}{peer}{name}; |
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$anvil->data->{sys}{target} = $anvil->data->{cib}{parsed}{'local'}{name}; |
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { |
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"sys::source" => $anvil->data->{sys}{source}, |
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"sys::target" => $anvil->data->{sys}{target}, |
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}}); |
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} |
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else |
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{ |
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# No match. |
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 0, priority => "err", key => "error_0273", variables => { |
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target => $anvil->data->{switches}{'target'}, |
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local_name => $anvil->data->{cib}{parsed}{'local'}{name}, |
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peer_name => $anvil->data->{cib}{parsed}{peer}{name}, |
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}}); |
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$anvil->Job->update_progress({progress => 100, message => "error_0273,!!target!".$anvil->data->{switches}{'target'}."!!,!!local_name!".$anvil->data->{cib}{parsed}{'local'}{name}."!!,!!peer_name!".$anvil->data->{cib}{parsed}{peer}{name}."!!"}); |
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$anvil->nice_exit({exit_code => 1}); |
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} |
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|
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# Record that we have our target. |
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 1, key => "job_0291", variables => { |
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source => $anvil->data->{sys}{source}, |
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target => $anvil->data->{sys}{target}, |
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}}); |
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$anvil->Job->update_progress({progress => 18, message => "job_0291,!!source!".$anvil->data->{sys}{source}."!!,!!target!".$anvil->data->{sys}{target}."!!"}); |
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return(0); |
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} |
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|
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sub wait_for_pacemaker |
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{ |
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my ($anvil) = @_; |
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|
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# Wait for the node to be up. |
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my $waiting = 1; |
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while($waiting) |
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{ |
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my $problem = $anvil->Cluster->parse_cib({debug => 2}); |
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { problem => $problem }}); |
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if (not $problem) |
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{ |
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my $node_name = $anvil->data->{cib}{parsed}{'local'}{name}; |
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my $ready = $anvil->data->{cib}{parsed}{data}{node}{$node_name}{node_state}{ready}; |
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { ready => $ready }}); |
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if ($ready) |
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{ |
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# We're good. |
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$waiting = 0; |
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { waiting => $waiting }}); |
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 1, key => "job_0279"}); |
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$anvil->Job->update_progress({progress => 15, message => "job_0279"}); |
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} |
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else |
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{ |
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# Node isn't ready yet. |
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 1, key => "job_0278"}); |
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$anvil->Job->update_progress({progress => 10, message => "job_0278"}); |
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} |
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} |
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else |
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{ |
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# Cluster hasn't started. |
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 1, key => "job_0277"}); |
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$anvil->Job->update_progress({progress => 5, message => "job_0277"}); |
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} |
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if ($waiting) |
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{ |
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sleep 10; |
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} |
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} |
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return(0); |
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}
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