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#!/usr/bin/perl
###
# based on https://gallery.munin-monitoring.org/plugins/munin-contrib/bird/
# which itself seems to be based on https://github.com/luben/bird-multigraph-plugin
##
use IO::Socket::UNIX;
use Munin::Plugin;
use strict;
use warnings;
use v5.10;
# get rid of some variables
use feature qw( switch );
no if $] >= 5.018, warnings => qw( experimental::smartmatch );
=head1 NAME
bird - Munin multigraph plugin to monitor BIRD routing daemon activity
=head1 APPLICABLE SYSTEMS
Every system with running bird
=head1 CONFIGURATION
The plugin must run with a user or group that could connect to bird
control socket.
This configuration snipplet is an example with the defaults:
[bird]
user root
env.protocols BGP
env.socket /var/run/bird.ctl
=head1 USAGE
Link this plugin to /etc/munin/plugins/ and restart the munin-node.
=head1 MAGIC MARKERS
#%# family=auto
#%# capabilities=autoconf
=head1 BUGS
Not known
=head1 AUTHOR
Luben Karavelov (karavelov at mail.bg)
=head1 LICENSE
Same as perl
=cut
need_multigraph();
my $protocols = [ split(/ /, $ENV{'protocols'} || 'BGP') ];
my $socket = $ENV{'socket'} || '/var/run/bird/bird.ctl';
sub get_stats {
state $stats;
return $stats if defined $stats;
my $bird_ctl = IO::Socket::UNIX->new(
Type => SOCK_STREAM,
Peer => $socket
) or die $!;
my ($protocol,$name);
while (my $var = <$bird_ctl>) {
given($var) {
when (/1002-(\w+)\s+(\w+)\s+.*/) {
($name, $protocol) = ($1,$2);
next unless $protocol ~~ $protocols;
$stats->{$name}->{protocol} = $protocol;
# fix uninit variable
$stats->{$name}->{title} = $name;
}
when (/^0001 /) {
print $bird_ctl "show protocols all\n";
next;
}
when (/^0000 /) {
last;
}
when (/^1002- /) {
print;
}
when (/^1006-\s+Description:\s+(.+)$/){
next unless $protocol ~~ $protocols;
$stats->{$name}->{title} = $1;
}
# when (/^\s+Routes:\s+(\d+)\s+imported,\s+(\d+)\s+exported,\s+(\d+)\s+preferred$/){
when (/^\s+Routes:\s+(\d+)\s+imported,(?:\s+(\d+)\s+filtered,)?\s+(\d+)\s+exported,\s+(\d+)\s+preferred$/){
next unless $protocol ~~ $protocols;
$stats->{$name}->{imported} = $1;
$stats->{$name}->{exported} = $2;
$stats->{$name}->{preferred} = $3;
}
# received rejected filtered ignored accepted
when (/^\s+(Import|Export)\s(updates|withdraws):\s+(\d+|-+)\s+(\d+|-+)\s+(\d+|-+)\s+(\d+|-+)\s+(\d+|-+)$/){
next unless $protocol ~~ $protocols;
$stats->{$name}->{ lc("$1_$2_received") } = $3;
$stats->{$name}->{ lc("$1_$2_rejected") } = $4;
$stats->{$name}->{ lc("$1_$2_filtered") } = $5;
$stats->{$name}->{ lc("$1_$2_ignored" ) } = $6;
$stats->{$name}->{ lc("$1_$2_accepted") } = $7;
}
when (/^$/) {
undef $protocol;
undef $name;
}
}
}
$bird_ctl->close;
return $stats;
}
sub autoconf {
if (-S $socket) {
say 'yes';
} else {
say 'no';
}
exit 0;
}
sub config {
my $stats = get_stats;
while ( my ($name,$proto) = each %$stats) {
print <<HEREDOC;
multigraph ${name}_routes
graph_title bird routes for $proto->{title}
graph_args --base 1000
graph_vlabel routes
graph_category network
exported.label Exported routes
exported.type GAUGE
exported.info Exported routes
exported.min 0
exported.draw LINE1
imported.label Imported routes
imported.type GAUGE
imported.info Impored routes
imported.min 0
imported.draw LINE1
preferred.label Preferred routes
preferred.type GAUGE
preferred.info Preferred routes
preferred.min 0
preferred.draw LINE1
HEREDOC
print <<HEREDOC;
multigraph ${name}_activity
graph_title bird activity for $proto->{title}
graph_args --base 1000
graph_vlabel routes per second
graph_category network
import_updates_received.label Import updates received
import_updates_received.type DERIVE
import_updates_received.draw LINE1
import_updates_rejected.label Import updates rejected
import_updates_rejected.type DERIVE
import_updates_rejected.draw LINE1
import_updates_filtered.label Import updates filtered
import_updates_filtered.type DERIVE
import_updates_filtered.draw LINE1
import_updates_ignored.label Import updates ignored
import_updates_ignored.type DERIVE
import_updates_ignored.draw LINE1
import_updates_accepted.label Import updates accepted
import_updates_accepted.type DERIVE
import_updates_accepted.draw LINE1
import_withdraws_received.label Import withdraws_received
import_withdraws_received.type DERIVE
import_withdraws_received.draw LINE1
import_withdraws_rejected.label Import withdraws rejected
import_withdraws_rejected.type DERIVE
import_withdraws_rejected.draw LINE1
import_withdraws_ignored.label Import withdraws ignored
import_withdraws_ignored.type DERIVE
import_withdraws_ignored.draw LINE1
import_withdraws_accepted.label Import withdraws accepted
import_withdraws_accepted.type DERIVE
import_withdraws_accepted.draw LINE1
export_updates_received.label Export updates received
export_updates_received.type DERIVE
export_updates_received.draw LINE1
export_updates_rejected.label Export updates rejected
export_updates_rejected.type DERIVE
export_updates_rejected.draw LINE1
export_updates_filtered.label Export updates filtered
export_updates_filtered.type DERIVE
export_updates_filtered.draw LINE1
export_updates_accepted.label Export updates accepted
export_updates_accepted.type DERIVE
export_updates_accepted.draw LINE1
export_withdraws_received.draw LINE1
export_withdraws_received.label Export withdraws received
export_withdraws_received.type DERIVE
export_withdraws_accepted.label Export withdraws accepted
export_withdraws_accepted.type DERIVE
export_withdraws_accepted.draw LINE1
HEREDOC
}
}
sub fetch {
my $stats = get_stats;
while ( my ($name,$proto) = each %$stats) {
print <<HEREDOC;
multigraph ${name}_routes
exported.value $proto->{exported}
imported.value $proto->{imported}
preferred.value $proto->{preferred}
multigraph ${name}_activity
import_updates_received.value $proto->{import_updates_received}
import_updates_rejected.value $proto->{import_updates_rejected}
import_updates_filtered.value $proto->{import_updates_filtered}
import_updates_ignored.value $proto->{import_updates_ignored}
import_updates_accepted.value $proto->{import_updates_accepted}
import_withdraws_received.value $proto->{import_withdraws_received}
import_withdraws_rejected.value $proto->{import_withdraws_rejected}
import_withdraws_ignored.value $proto->{import_withdraws_ignored}
import_withdraws_accepted.value $proto->{import_withdraws_accepted}
export_updates_received.value $proto->{export_updates_received}
export_updates_rejected.value $proto->{export_updates_rejected}
export_updates_filtered.value $proto->{export_updates_filtered}
export_updates_accepted.value $proto->{export_updates_accepted}
export_withdraws_received.value $proto->{export_withdraws_received}
export_withdraws_accepted.value $proto->{export_withdraws_accepted}
HEREDOC
}
}
given ($ARGV[0]) {
when ('autoconf') { autoconf }
when ('config') { config }
default { fetch }
}
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