201 lines
3.9 KiB
Perl
201 lines
3.9 KiB
Perl
#!/usr/bin/env perl
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use v5.10.1;
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use strict;
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use warnings;
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use Gearman::Worker;
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use MIME::Base64;
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use XML::LibXML;
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use ACU::LDAP;
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use ACU::Log;
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use ACU::Process;
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my %master_actions =
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(
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"launch" => \&master_launch,
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"list" => \&master_list,
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"register" => \&master_register,
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);
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my @nodes;
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sub master_register
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{
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my $args = shift;
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if ($args->{param}{nodename})
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{
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my $nodename = $args->{param}{nodename};
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if (! grep { $_ eq $nodename } @nodes)
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{
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log INFO, "New node: $nodename";
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push @nodes, "$nodename";
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}
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else {
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log WARN, "Node $nodename alredy registered";
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}
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}
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else {
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log WARN, "nodename empty, cannot register new node";
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}
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}
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sub master_list
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{
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my $doc = XML::LibXML::Document->new('1.0');
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my $root = $doc->createElement("process");
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for my $target (@nodes)
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{
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my $t = $doc->createElement("target");
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$t->setAttribute("name", $target);
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$root->appendChild($t);
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}
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$doc->setDocumentElement( $root );
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return $doc->toString();
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}
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sub build_task_xml
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{
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my $files = shift;
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my $subtree = shift;
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my $doc = XML::LibXML::Document->new('1.0');
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my $root = $doc->createElement("guantanamo");
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$doc->setDocumentElement( $root );
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log TRACE, $subtree;
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if ($files)
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{
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log TRACE, $files;
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for my $key (keys %{ $files })
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{
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my $file = $doc->createElement("file");
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$file->addChild( $doc->createAttribute("name", $key) );
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$file->addChild( $doc->createAttribute("encoding", "base64") );
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$file->appendText(encode_base64($files->{$key}));
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$root->appendChild($file);
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}
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}
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if ($subtree) {
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$subtree->recreateNode($doc, $root);
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}
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my $ret = $doc->toString();
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log TRACE, $ret;
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return $ret;
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}
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sub master_launch
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{
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my $args = shift;
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my @lnodes;
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my @warn;
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if ($args->{unamed})
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{
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for (my $i = $args->{unamed}; $i > 0; $i--)
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{
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if (grep { $args->{param}{$i} eq $_ } @nodes) {
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push @lnodes, $args->{param}{$i};
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} else {
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push @warn, $args->{param}{$i}." not a currently launched architecture.";
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}
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}
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}
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else {
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@lnodes = @nodes;
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}
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log DEBUG, "Launching nodes...";
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my %ret;
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my $client = Gearman::Client->new;
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$client->job_servers('gearmand:4730');
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my $taskset = $client->new_task_set;
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for my $node (@lnodes)
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{
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log DEBUG, "Launching $node...";
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$taskset->add_task(
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"guantanamo_".$node => build_task_xml($args->{files}, $args->{subtree}),
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{
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on_complete => sub {
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my $dom = XML::LibXML->load_xml(string => ${ $_[0] });
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$ret{ $node } = $dom;
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}
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});
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}
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$taskset->wait;
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if ($args->{subtree}->hasAttribute("output") && $args->{subtree}->getAttribute("output") eq "text")
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{
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my $output = "";
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for my $w (@warn) {
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$output .= $w."\n";
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}
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for my $node (@lnodes) {
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my @o = $ret{$node}->documentElement->getElementsByTagName("out");
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if (@o) {
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$output .= $o[0]->firstChild->nodeValue;
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}
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my @e = $ret{$node}->documentElement->getElementsByTagName("err");
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if (@e) {
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$output .= $e[0]->firstChild->nodeValue;
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}
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$output .= $e[0]->firstChild->nodeValue;
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}
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return $output;
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}
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else
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{
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my $doc = XML::LibXML::Document->new('1.0');
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my $root = $doc->createElement("process");
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$doc->setDocumentElement( $root );
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for my $w (@warn)
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{
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my $warning = $doc->createElement("warning");
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$warning->appendText($w);
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$root->appendChild($warning);
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}
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for my $k (keys %ret)
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{
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$root->appendChild($ret{ $k }->documentElement);
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}
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return $doc->toString();
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}
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}
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sub process_master
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{
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my ($given_args, $args) = @_;
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my $action = $args->{param}{action} // "launch";
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if (! exists $master_actions{$action}) {
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log WARN, "Unknown action '$action' for guantanamo master process.";
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}
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return $master_actions{$action}($args);
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}
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log INFO, "Starting guantanamo.pl as master process";
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Process::add_server("gearmand:4730");
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Process::register("guantanamo", \&process_master);
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