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102 lines
3.3 KiB
Perl
102 lines
3.3 KiB
Perl
#!/usr/bin/perl -w
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use strict;
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use JSON qw(decode_json);
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#
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# byprojects_bandwidth
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#
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# Perl script to monitor total bandwidth *byprojects* (e.g. vhost) from multiple
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# files and/or regex.
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#
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# Danny Fullerton <northox@mantor.org>
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# Mantor Organization <www.mantor.org>
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# This work is licensed under a MIT license.
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#
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# You need logtail (https://www.fourmilab.ch/webtools/logtail/)
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#
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# Your nginx configuration should look like this (i.e. $request_length
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# body_bytes_sent at the end):
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# log_format main '$remote_addr - $remote_user $time_local "$request" '
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# '$status $body_bytes_sent "$http_referer" '
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# '"$http_user_agent" $request_length $body_bytes_sent';
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#
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# Log can be gathered from multiple sources by simply specifying multiple log
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# filename or using wildcards (glob). File content can be selected using regex.
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#
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# - 'prod' => [ {'path' => '/home/prod/log/access.log'} ],
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# Prod graph will be using everything in /home/prod/log/access.log
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#
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# - 'test' => [ {'path' => '/var/log/access.log', 'regex' => '"[A-Z]+ /test/'},
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# {'path' => '/home/test/log/access*.log'} ],
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# Test graph will be using everything file matching /home/test/log/access*.log
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# and stuff that match the expression '"[A-Z] /test/' in /var/log/access.log
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# such as '"GET /test/'
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#
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# Configuration
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# [byprojects_*]
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# env.logtail_path /usr/local/bin/logtail
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# env.site.prod [{"path":"/home/prod/log/access.log"}]
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# env.site.dev [{"path":"/var/log/httpd/ssl-dev-access.log"}, {"path":"/home/dev/log/access*.log"}]
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# env.site.test [{"path":"/var/log/access.log","regex":"\"[A-Z]+ /test/"}, {"path":"/home/test/log/access.log"}]
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my $server = 'Nginx';
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my $statepath = $ENV{MUNIN_PLUGSTATE};
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my $logtail = $ENV{logtail_path} || '/usr/local/bin/logtail';
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my @loglist = grep {$_ =~ /site\./} keys(%ENV);
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my %envLogs = %ENV{@loglist};
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my %logs;
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while(my($k, $v) = each %envLogs) { @logs{substr($k, 5)} = decode_json($v); }
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###########
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if(defined($ARGV[0])) {
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if ($ARGV[0] eq 'autoconf') {
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print "yes\n";
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exit(0);
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} elsif ($ARGV[0] eq 'config') {
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my $order = '';
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while ((my $project, my @files) = each(%logs)) { $order .= $project.' ' }
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print "graph_order $order\n";
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print "graph_title $server total bandwidth byprojects\n";
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print "graph_total Total\n";
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print "graph_vlabel Bits\n";
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print "graph_category webserver\n";
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print "graph_info This graph show $server total bandwidth used by various " .
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"projects.\n";
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while ((my $project, my @files) = each(%logs)) {
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print $project.".label $project\n";
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print $project.".type GAUGE\n";
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}
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exit(0);
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}
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}
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foreach my $project ( keys %logs ) {
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my $i = 0;
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my $o = 0;
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my $x = 0;
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foreach my $log ( @{$logs{$project}} ) {
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my @paths = glob $log->{'path'};
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foreach my $path (@paths) {
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my $state = $statepath.'/'.$project.$x.'_totalbandwidth.state';
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open(LT, "$logtail -f ".$log->{'path'}." -o $state |") or
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die "Can't open $logtail : $!";
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while (<LT>) {
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my $buf = $_;
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if($buf eq '') { next }
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if(!defined($log->{'regex'}) || $buf =~ m/$log->{'regex'}/) {
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if($buf =~ m/(\d+) (\d+)$/) {
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$i += $1;
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$o += $2;
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}
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}
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}
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close(LT);
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$x++;
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}
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}
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$x = $i + $o;
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print $project.".value $x\n";
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}
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