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#!/usr/bin/perl -w
# -*- perl -*-
=head1 NAME
fastd_traffic_ - Plugin to monitor fastd traffic
=head1 CONFIGURATION
Set user and group to have access to the socket
Set path to socketfile if not /tmp/fastd.sock
[fastd_traffic_*]
user fastd
group fastd
env.socketfile /tmp/fastd.sock
=head1 USAGE
Link this plugin to /etc/munin/plugins/
After creating the links, restart munin-node. Don't forget to configure the plugin!
=head1 AUTHORS
Dominique Goersch <mail@dgoersch.info>
Niklas Yann Wettengel <niyawe@niyawe.de>
=head1 LICENSE
GPLv2
=head1 MAGIC MARKERS
#%# family=manual
=cut
use strict;
use warnings;
use File::Basename;
use IO::Socket::UNIX qw( SOCK_STREAM );
use JSON;
if ($ARGV[0] and $ARGV[0] eq "config") { #config graph
print "graph_order down up\n";
print "graph_title fastd traffic\n";
print "graph_args --base 1000\n";
print "graph_vlabel bits in (-) / out (+) per second\n";
print "graph_category fastd\n";
print "graph_info This graph shows the traffic of fast.\n";
print "down.label received\n";
print "down.type DERIVE\n";
print "down.graph no\n";
print "down.cdef down,8,*\n";
print "down.min 0\n";
print "up.label bps\n";
print "up.type DERIVE\n";
print "up.negative down\n";
print "up.cdef up,8,*\n";
print "up.min 0\n";
exit 0;
}
my $statusfile = exists $ENV{'socketfile'} ? $ENV{'socketfile'} : "/tmp/fastd.sock"; #get path to socket from environment or use default
my $socket = IO::Socket::UNIX->new(Type => SOCK_STREAM,Peer => $statusfile) #open socket
or die("Can't connect to server: $!\n");
my $fastdstatus = "";
foreach my $line (<$socket>) {$fastdstatus .= $line;} #read contents from socket
my $json = decode_json($fastdstatus); #decode json
my $fastd_rx_bytes = $json->{statistics}->{rx}->{bytes}; #get recieved bytes from json
my $fastd_tx_bytes = $json->{statistics}->{tx}->{bytes}; #get transmittetd bytes from json
print "up.value $fastd_tx_bytes\n"; #return transmitted bytes
print "down.value $fastd_rx_bytes\n"; #and recieved bytes
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