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#!/usr/bin/perl -w
# -*- perl -*-
=head1 NAME
fastd_ - Plugin to monitor fastd uptime, peers and traffic
=head1 CONFIGURATION
Set user and group to have access to the socket
Set path to socketfile if not /tmp/fastd.sock
[fastd_*]
user fastd
group fastd
env.socketfile /tmp/fastd.sock
=head1 USAGE
Link this plugin to /etc/munin/plugins/ with the type of graph (uptime, peers, traffic)
append to the linkname, ie: /etc/munin/plugins/fastd_peers
After creating the links, restart munin-node. Don't forget to configure the plugin!
=head1 AUTHORS
Dominique Goersch <mail@dgoersch.info>
=head1 LICENSE
GPLv2
=head1 MAGIC MARKERS
#%# family=manual
#%# capabilities=suggest
=cut
use strict;
use warnings;
use File::Basename;
use IO::Socket::UNIX qw( SOCK_STREAM );
use JSON;
my $mode = basename($0); #get basename
$mode =~ s/fastd_//; #and strip 'fastd_' to get the mode
if ($ARGV[0] and $ARGV[0] eq "config") { #config graph
if ($mode eq 'uptime') { #for uptime
print "graph_title fastd Uptime\n";
print "graph_info This graph shows the uptime of the fastd on this supernode\n";
print "graph_args -l 0\n";
print "graph_scale no\n";
print "graph_vlabel uptime in days\n";
print "graph_category fastd\n";
print "uptime.label uptime\n";
print "uptime.draw AREA\n";
}
elsif ($mode eq 'peers') { #for peers
print "graph_title fastd peers\n";
print "graph_info This graph shows the peers of the fastd on this supernode\n";
print "graph_args -l 0\n";
print "graph_scale no\n";
print "graph_vlabel peers count\n";
print "graph_category fastd\n";
print "peers.label peers\n";
print "peers.draw AREA\n";
}
elsif ($mode eq 'traffic') { #for traffic
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;
}
if ($ARGV[0] and $ARGV[0] eq "suggest") { #tell munin about our graphs
print "uptime\n";
print "peers\n";
print "traffic\n";
}
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_uptime = $json->{uptime}; #get the uptime from json
#my $fastd_peers = scalar(keys(%{$json->{peers}})); #get number of peers from json
my $fastd_peers = 0;
for my $key (keys(%{$json->{peers}})) {
$fastd_peers = $fastd_peers + ($json->{peers}{$key}{connection}? 1 : 0);
}
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
if ( $mode eq 'uptime' ) {
printf "uptime.value %.0f\n",$fastd_uptime/86400000; #return uptime in seconds
} elsif ($mode eq 'peers') {
print "peers.value $fastd_peers\n"; #return number of peers
} elsif ($mode eq 'traffic') {
print "up.value $fastd_tx_bytes\n"; #return transmitted bytes
print "down.value $fastd_rx_bytes\n"; #and recieved bytes
}
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