7bd76c10dc
* Updated Server->shutdown_virsh() to work without a database connection. * Updated System->reboot_needed() to store/read from a cache file when the database is not available. * Updated anvil-safe-start to remove the old --enable/disable/status switches, now that we use anvil-safe-start.service systemd unit. * Reworked anvil-safe-stop to work without a database connection, and to work on DR hosts. * Updated anvil-special-operations to add new tasks, but it's likely these new tasks aren't needed and will be removed very shortly. * Added/updated multiple man pages. Signed-off-by: digimer <mkelly@alteeve.ca>
365 lines
13 KiB
Perl
Executable File
365 lines
13 KiB
Perl
Executable File
#!/usr/bin/perl
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#
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# This program shuts downs a server (or servers). It can be called as either a job from the webui or directly
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# from another program or a terminal.
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#
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# Exit codes;
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# 0 = Normal exit.
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# 1 = No database connection.
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#
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# TODO:
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# - We need to support shutdown ordering (inverese of boot ordering)
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#
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use strict;
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use warnings;
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use Anvil::Tools;
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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 $anvil = Anvil::Tools->new();
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# Read switches (target ([user@]host[:port]) and the file with the target's password.
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$anvil->Get->switches({list => [
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"no-db",
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"no-wait",
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"server",
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"server-uuid",
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"wait"], man => $THIS_FILE});
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => $anvil->data->{switches}});
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 2, key => "log_0115", variables => { program => $THIS_FILE }});
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# Connect to DBs.
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if ($anvil->data->{switches}{'no-db'})
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{
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 0, secure => 0, key => "log_0743"});
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# If there was a job-uuid, clear it.
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$anvil->data->{sys}{database}{connections} = 0;
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$anvil->data->{switches}{'job-uuid'} = "";
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
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'sys::database::connections' => $anvil->data->{sys}{database}{connections},
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'switches::job-uuid' => $anvil->data->{switches}{'job-uuid'},
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}});
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}
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else
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{
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$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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}
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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_0283",
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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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# DO we have DB connection(s)?
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if (not $anvil->data->{sys}{database}{connections})
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{
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 0, priority => "err", key => "error_0265"});
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$anvil->Job->update_progress({progress => 100, message => "error_0265"});
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$anvil->nice_exit({exit_code => 1});
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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 => $THIS_FILE, line => __LINE__, 'print' => 1, level => 0, priority => "err", key => "error_0263"});
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$anvil->Job->update_progress({progress => 100, message => "error_0263"});
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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} = $anvil->Get->host_type();
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
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'sys::host_type' => $anvil->data->{sys}{host_type},
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}});
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if (($anvil->data->{sys}{host_type} ne "node") && ($anvil->data->{sys}{host_type} ne "dr"))
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{
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 0, priority => "err", key => "error_0264"});
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$anvil->Job->update_progress({progress => 100, message => "error_0264"});
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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} = "";
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if (($anvil->data->{sys}{host_type} eq "node") && ($anvil->data->{sys}{database}{connections}))
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{
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$anvil->data->{sys}{anvil_uuid} = $anvil->Cluster->get_anvil_uuid();
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
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'sys::anvil_uuid' => $anvil->data->{sys}{anvil_uuid},
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}});
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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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$anvil->nice_exit({exit_code => 1});
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}
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}
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# This is copied from anvil-boot-server, but it works here as well. We can't use 'pcs' without pacemaker
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# being up.
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if ($anvil->data->{sys}{host_type} eq "node")
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{
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wait_for_pacemaker($anvil);
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}
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# If 'server' is 'all', shut down all servers.
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if (lc($anvil->data->{switches}{'server'}) eq "all")
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{
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shutdown_all_servers($anvil);
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}
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else
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{
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my $wait = $anvil->data->{switches}{'no-wait'} ? 0 : 1;
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shutdown_server($anvil, $anvil->data->{switches}{'server'}, $wait, 50);
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}
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$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"}) if $anvil->data->{switches}{'job-uuid'};
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$anvil->nice_exit({exit_code => 0});
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#############################################################################################################
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# Functions #
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#############################################################################################################
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sub wait_for_pacemaker
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{
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my ($anvil) = @_;
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# Shutdown the server using pcs, but of course, 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"}) if $anvil->data->{switches}{'job-uuid'};
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}
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else
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{
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# Node isn't ready yet.
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$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"}) if $anvil->data->{switches}{'job-uuid'};
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}
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}
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else
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{
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# Cluster hasn't started.
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$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"}) if $anvil->data->{switches}{'job-uuid'};
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}
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if ($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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sub shutdown_server
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{
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my ($anvil, $server, $wait, $progress) = @_;
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
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server => $server,
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'wait' => $wait,
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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 => "log_0548", variables => { server => $server }});
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$anvil->Job->update_progress({progress => 100, message => "log_0548,!!server!".$server."!!"}) if $anvil->data->{switches}{'job-uuid'};
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$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."!!"}) if $anvil->data->{switches}{'job-uuid'};
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return(0);
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}
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# Now shut down.
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 1, key => "job_0289", variables => { server => $server }});
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$anvil->Job->update_progress({progress => $progress, message => "job_0289,!!server!".$server."!!"}) if $anvil->data->{switches}{'job-uuid'};
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my $problem = 0;
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if ($anvil->Get->host_type eq "dr")
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{
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# Shut down using virsh. Invert the return.
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my $success = $anvil->Server->shutdown_virsh({
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debug => 2,
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wait_time => $wait ? 0 : 1,
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});
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$problem = $success ? 0 : 1;
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$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
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success => $success,
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problem => $problem,
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}});
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}
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else
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{
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$problem = $anvil->Cluster->shutdown_server({
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debug => 2,
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server => $server,
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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 => $problem }});
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}
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if ($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_0268", variables => { server => $server }});
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$anvil->Job->update_progress({progress => 100, message => "error_0268,!!server!".$server."!!"}) if $anvil->data->{switches}{'job-uuid'};
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$anvil->nice_exit({exit_code => 1});
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}
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else
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{
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if ($wait)
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{
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# Stopped!
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 1, key => "job_0285", variables => { server => $server }});
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$anvil->Job->update_progress({progress => $progress, message => "job_0285,!!server!".$server."!!"}) if $anvil->data->{switches}{'job-uuid'};
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}
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else
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{
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# Stop requested.
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$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 1, key => "job_0286", variables => { server => $server }});
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$anvil->Job->update_progress({progress => $progress, message => "job_0286,!!server!".$server."!!"}) if $anvil->data->{switches}{'job-uuid'};
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}
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}
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return(0);
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}
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sub shutdown_all_servers
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{
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my ($anvil) = @_;
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### TODO: Manage the stop order here, inverse of boot order.
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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 = $server_count ? int(70 / $server_count) : 70;
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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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# Shut it down (don't wait).
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my $wait = $anvil->data->{switches}{'wait'} ? 1 : 0;
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$percent += $increment;
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shutdown_server($anvil, $server, $wait, $percent);
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}
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}
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return(0);
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}
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