Munin contributed plugins

#!/usr/bin/perl -w

# -*- cperl -*-

=head1 NAME

  freeipmi - Multigraph-plugin to monitor sensors using FreeIPMI

=head1 CONFIGURATION

=head2 ENVIRONMENT VARIABLES

When used to monitor a foreign host, this plugins use the variables

IPMI_USERNAME and IPMI_PASSWORD to log in on the remote system.

=head2 WILDCARD PLUGIN

When used for the local host, the plugin should be linked as

non-wildcard plugin, i.e., 'freeipmi', whereas when used to monitor a

foreign host it should be, e.g., 'freeipmi_192.168.0.253'.

=head1 AUTHOR

Diego Elio Pettenò <flameeyes@flameeyes.eu>.

=head1 LICENSE

GPLv2

=head1 MAGIC MARKERS

 #%# family=auto

 #%# capabilities=autoconf

=cut

use strict;

use Munin::Plugin;

$ENV{'LANG'} = "C"; # Force parsable output from sensors.

$ENV{'LC_ALL'} = "C"; # Force parsable output from sensors.

my $IPMISENSORS = $ENV{'ipmisensors'} || 'ipmi-sensors';

$0 =~ /freeipmi(?:_(.+))$/;

my $hostname = $1;

$IPMISENSORS .= " --quiet-cache --comma-separated-output --no-header-output --ignore-not-available-sensors --sensor-types=Temperature,Fan,Current,Voltage --output-sensor-thresholds";

$IPMISENSORS .= " --hostname=$hostname" if defined($hostname);

$IPMISENSORS .= " --username=$ENV{IPMI_USERNAME}" if defined($ENV{IPMI_USERNAME});

$IPMISENSORS .= " --password=$ENV{IPMI_PASSWORD}" if defined($ENV{IPMI_PASSWORD});

my $output=`$IPMISENSORS --output-sensor-thresholds 2>/dev/null`;

my $retval=$?;

if ( defined $ARGV[0] and $ARGV[0] eq 'autoconf' ) {

  if ($retval >= 1) {

    print "no (ipmi-sensors died)\n";

  } elsif ($retval == -1) {

    print "no (ipmi-sensors not found)\n";

  } elsif ($output eq "\n") {

    print "no (no compatible sensors)\n";

  } else {

    print "yes\n";

  }

  exit 0;

}

my %sensors = (

	       temp => {

			inputs => [],

			title => "Temperatures by IPMI",

			vlabel => "Degrees Celsius",

			graph_args => "--base 1000 -l 0",

		       },

	       fan => {

		       inputs => [],

		       title => "Fans speed by IPMI",

		       vlabel => "RPM",

		       graph_args => "--base 1000 -l 0",

		      },

	       power => {

			 inputs => [],

			 title => "Power by IPMI",

			 vlabel => "W",

			 graph_args => "--base 1000 -l 0",

			},

	       current => {

			 inputs => [],

			 title => "Current by IPMI",

			 vlabel => "A",

			 graph_args => "--base 1000 -l 0",

			},

	       voltage => {

			   inputs => [],

			   title => "Voltages by IPMI",

			   vlabel => "Volt",

			   graph_args => "--base 1000 --logarithmic",

			  },

	      );

my @data = split(/\n/, $output);

foreach my $line (@data) {

  my @dataline = split(/,/, $line);

  my %sensor = (

		graphid => "ipmi" . $dataline[0],

		value => $dataline[3],

		label => $dataline[1]

	       );

  $sensor{lwarn} = $dataline[7] if $dataline[7] ne "N/A";

  $sensor{hwarn} = $dataline[9] if $dataline[9] ne "N/A";

  $sensor{lcrit} = $dataline[6] if $dataline[6] ne "N/A";

  $sensor{hcrit} = $dataline[10] if $dataline[10] ne "N/A";

  my $type;

  if ( $dataline[2] eq "Temperature" ) {

    $type = "temp";

  } elsif ( $dataline[2] eq "Fan" ) {

    $type = "fan"

  } elsif ( $dataline[2] eq "Current" and $dataline[4] eq "W" ) {

    $type = "power";

  } elsif ( $dataline[2] eq "Current" and $dataline[4] eq "A" ) {

    $type = "current";

  } elsif ( $dataline[2] eq "Voltage" ) {

    $type = "voltage";

  }

  push(@{$sensors{$type}->{inputs}}, \%sensor);

}

if ( defined $ARGV[0] and $ARGV[0] eq 'config' ) {

  foreach my $type (keys %sensors) {

    # don't print anything if no value is found

    next if scalar(@{$sensors{$type}->{inputs}}) == 0;

    print "host_name $hostname" if defined($hostname);

    print <<END;

multigraph freeipmi_$type

graph_title $sensors{$type}->{title}

graph_vlabel $sensors{$type}->{vlabel}

graph_args $sensors{$type}->{graph_args}

graph_category sensors

END

    foreach my $sensor (@{$sensors{$type}->{inputs}}) {

      print "$sensor->{graphid}.label $sensor->{label}\n";

      print "$sensor->{graphid}.warning $sensor->{lwarn}:$sensor->{hwarn}\n"

	if defined($sensor->{lwarn}) or defined($sensor->{hwarn});

      print "$sensor->{graphid}.critical $sensor->{lcrit}:$sensor->{hcrit}\n"

	if defined($sensor->{lcrit}) or defined($sensor->{hcrit});

    }

  }

  exit 0;

}

foreach my $type (keys %sensors) {

  # don't print anything if no value is found

  next if scalar(@{$sensors{$type}->{inputs}}) == 0;

  print "multigraph sensors_$type\n";

  foreach my $sensor (@{$sensors{$type}->{inputs}}) {

    print "$sensor->{graphid}.value $sensor->{value}\n";

  }

}