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munin-contrib/plugins/battery/batteries

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#!/usr/bin/perl -w
# -*- perl -*-
=head1 NAME
batteries Munin plugin to monitor the battery states through procfs and sysfs
=head1 APPLICABLE SYSTEMS
Systems with available /proc/acpi/battery/BATx or /sys/class/power_supply/BATx
=head1 CONFIGURATION
none
=head1 INTERPRETATION
The plugin shows:
Design capacity -> available if available /proc/acpi/battery/BATx or /sys/class/power_supply/BATx
Last full capacity -> available if available /proc/acpi/battery/BATx or /sys/class/power_supply/BATx
Design capacity low -> available only if available /proc/acpi/battery/BATx
Design capacity warning -> available only if available /proc/acpi/battery/BATx
Capacity granularity 1 -> available only if available /proc/acpi/battery/BATx
Capacity granularity 2 -> available only if available /proc/acpi/battery/BATx
Remaining capacity -> available if available /proc/acpi/battery/BATx or /sys/class/power_supply/BATx
Present rate -> available if available /proc/acpi/battery/BATx or /sys/class/power_supply/BATx
Percentage Current/design voltage -> available if available /proc/acpi/battery/BATx or /sys/class/power_supply/BATx
Percentage Current/full capacity -> available if available /proc/acpi/battery/BATx or /sys/class/power_supply/BATx
Percentage Full/design capacity -> available if available /proc/acpi/battery/BATx or /sys/class/power_supply/BATx
Design voltage -> available if available /proc/acpi/battery/BATx or /sys/class/power_supply/BATx
Present voltage -> available if available /proc/acpi/battery/BATx or /sys/class/power_supply/BATx
=head1 MAGIC MARKERS
#%# family=power
#%# capabilities=autoconf
=head1 VERSION
1.0
=head1 BUGS
None known.
=head1 AUTHOR
Gorlow Maxim aka Sheridan <sheridan@sheridan-home.ru> - email and jabber
=head1 LICENSE
GPLv2
=cut
use strict;
use warnings;
use IO::Dir;
use Munin::Plugin;
need_multigraph();
my $proc_path = '/proc/acpi/battery';
my $sys_path = '/sys/class/power_supply';
my $proc_data_exists;
my $sys_data_exists;
my $batteryes_count;
sub trim
{
my($string)=@_;
for ($string)
{
s/^\s+//;
s/\s+$//;
}
return $string;
}
sub get_batteryes_count
{
my $path = $_[0];
return 0 unless (-e $path);
my $count = 0;
my $dir = IO::Dir->new($path);
if(defined $dir)
{
my $d;
while (defined ($d = $dir->read))
{
next unless $d =~ m/BAT\d+/;
$count++;
}
}
else { return 0; }
return $count;
}
sub init
{
my $proc_batt_count = get_batteryes_count($proc_path);
my $sys_batt_count = get_batteryes_count($sys_path );
#print "$proc_batt_count $sys_batt_count\n";
$proc_data_exists = $proc_batt_count > 0;
$sys_data_exists = $sys_batt_count > 0;
if ($proc_data_exists and $sys_data_exists and ($proc_batt_count != $sys_batt_count))
{
die "Something wrong, batteryes count from $proc_path and $sys_path not equal (proc: $proc_batt_count, sys: $sys_batt_count)!"
}
if ($proc_data_exists) { $batteryes_count = $proc_batt_count; }
elsif ($sys_data_exists) { $batteryes_count = $sys_batt_count; }
unless ($batteryes_count)
{
die "Batteryes not found."
}
}
sub read_proc_data
{
my ($batt_num, $file) = @_[0..1];
my ($var, $val, $result);
open(FH, '<', "${proc_path}/BAT${batt_num}/${file}") or die $!;
foreach my $line (<FH>)
{
chomp ($line);
($var, $val) = split(':', $line);
if ($val =~ m/^\s*$/ ) { $val = "nan"; }
elsif ($val =~ m/\w\s+\w/) { $val = (split(" " ,$val))[0]; }
$result->{$var} = trim($val);
#print "var $var - val $val\n";
}
close(FH);
return $result;
}
sub read_sys_data
{
my ($batt_num, $file) = @_[0..1];
my $file_content = "nan";
open(FH, '<', "${sys_path}/BAT${batt_num}/${file}") or die $!;
$file_content = <FH>;
close(FH);
chomp ($file_content);
if($file_content =~ m/^\s*$/) { return 'nan'; }
return $file_content;
}
sub percent
{
my ($full, $current) = @_[0..1];
return $current/($full/100);
}
sub read_info
{
my $info;
for (my $i = 0; $i < $batteryes_count; $i++)
{
if($sys_data_exists)
{
$info->{$i}{'manufacturer'} = read_sys_data($i, 'manufacturer');
$info->{$i}{'battery_type'} = read_sys_data($i, 'technology' );
$info->{$i}{'model_name'} = read_sys_data($i, 'model_name' );
$info->{$i}{'serial_number'} = read_sys_data($i, 'serial_number');
}
else
{
my $proc_info = read_proc_data($i, 'info');
$info->{$i}{'manufacturer'} = $proc_info->{'OEM info' };
$info->{$i}{'battery_type'} = $proc_info->{'battery type' };
$info->{$i}{'model_name'} = $proc_info->{'model number' };
$info->{$i}{'serial_number'} = $proc_info->{'serial number'};
}
}
return $info;
}
sub read_data
{
my $data;
for (my $i = 0; $i < $batteryes_count; $i++)
{
if($sys_data_exists)
{
my $divider = 1000000; # need for equvivalent sys and proc data
$data->{$i}{'design_capacity'} = read_sys_data($i, 'charge_full_design')/$divider;
$data->{$i}{'last_full_capacity'} = read_sys_data($i, 'charge_full') /$divider;
$data->{$i}{'remaining_capacity'} = read_sys_data($i, 'charge_now') /$divider;
$data->{$i}{'design_voltage'} = read_sys_data($i, 'voltage_min_design')/$divider;
$data->{$i}{'present_voltage'} = read_sys_data($i, 'voltage_now') /$divider;
$data->{$i}{'present_rate'} = read_sys_data($i, 'current_now') /$divider;
}
if($proc_data_exists)
{
my $divider = 1000; # need for equvivalent sys and proc data
my $proc_info = read_proc_data($i, 'info');
unless($sys_data_exists)
{
my $proc_state = read_proc_data($i, 'state');
$data->{$i}{'design_capacity'} = $proc_info ->{'design capacity'} /$divider;
$data->{$i}{'last_full_capacity'} = $proc_info ->{'last full capacity'}/$divider;
$data->{$i}{'remaining_capacity'} = $proc_state->{'remaining capacity'}/$divider;
$data->{$i}{'design_voltage'} = $proc_info ->{'design voltage'} /$divider;
$data->{$i}{'present_voltage'} = $proc_state->{'present voltage'} /$divider;
$data->{$i}{'present_rate'} = $proc_state->{'present rate'} /$divider;
}
$data->{$i}{'design_capacity_low'} = $proc_info ->{'design capacity low'} /$divider;
$data->{$i}{'design_capacity_warning'} = $proc_info ->{'design capacity warning'}/$divider;
$data->{$i}{'capacity_granularity_1'} = $proc_info ->{'capacity granularity 1'} /$divider;
$data->{$i}{'capacity_granularity_2'} = $proc_info ->{'capacity granularity 2'} /$divider;
}
$data->{$i}{'current_voltage_percent'} = percent($data->{$i}{'design_voltage'} , $data->{$i}{'present_voltage'});
$data->{$i}{'current_capacity_percent'} = percent($data->{$i}{'last_full_capacity'}, $data->{$i}{'remaining_capacity'});
$data->{$i}{'full_capacity_percent'} = percent($data->{$i}{'design_capacity'} , $data->{$i}{'last_full_capacity'});
}
return $data;
}
my $graphs =
{
'batteryes_capacity' => { 'vlabel' => 'Capacity, Ah', 'title' => '%s capacity', 'args' => '--base 1000',
'fields' => [qw/design_capacity last_full_capacity design_capacity_low design_capacity_warning capacity_granularity_1 capacity_granularity_2 remaining_capacity/] },
'batteryes_voltage' => { 'vlabel' => 'Voltage, V' , 'title' => '%s voltage' , 'args' => '--base 1000',
'fields' => [qw/design_voltage present_voltage/] },
'batteryes_percents' => { 'vlabel' => '%' , 'title' => '%s percents', 'args' => '--base 1000 --upper-limit 100 -l 0',
'fields' => [qw/current_voltage_percent current_capacity_percent full_capacity_percent/] },
'batteryes_current' => { 'vlabel' => 'Current, A' , 'title' => '%s current' , 'args' => '--base 1000',
'fields' => [qw/present_rate/] }
};
my $fields =
{
'design_capacity' => { 'source' => 'both', 'draw' => 'AREA' , 'label' => 'Design capacity' , 'info' => 'Battery design capacity' },
'last_full_capacity' => { 'source' => 'both', 'draw' => 'AREA' , 'label' => 'Last full capacity' , 'info' => 'Battery full charge capacity' },
'design_capacity_low' => { 'source' => 'proc', 'draw' => 'LINE2', 'label' => 'Design capacity low' , 'info' => 'Low battery level' },
'design_capacity_warning' => { 'source' => 'proc', 'draw' => 'LINE2', 'label' => 'Design capacity warning', 'info' => 'Warning battery level' },
'capacity_granularity_1' => { 'source' => 'proc', 'draw' => 'LINE2', 'label' => 'Capacity granularity 1' , 'info' => 'Capacity granularity 1' },
'capacity_granularity_2' => { 'source' => 'proc', 'draw' => 'LINE2', 'label' => 'Capacity granularity 2' , 'info' => 'Capacity granularity 2' },
'remaining_capacity' => { 'source' => 'both', 'draw' => 'LINE2', 'label' => 'Remaining capacity' , 'info' => 'Current battery charge' },
'present_rate' => { 'source' => 'both', 'draw' => 'LINE2', 'label' => 'Present rate' , 'info' => 'Current battery rate' },
'design_voltage' => { 'source' => 'both', 'draw' => 'AREA' , 'label' => 'Design voltage' , 'info' => 'Battery design voltage' },
'present_voltage' => { 'source' => 'both', 'draw' => 'AREA' , 'label' => 'Present voltage' , 'info' => 'Current battery voltage' },
'current_voltage_percent' => { 'source' => 'both', 'draw' => 'LINE2', 'label' => 'Current/design voltage' , 'info' => 'Current battery voltage / ( Battery design voltage / 100 )' },
'current_capacity_percent' => { 'source' => 'both', 'draw' => 'LINE2', 'label' => 'Current/full capacity' , 'info' => 'Current battery charge / ( Battery full charge capacity / 100 )' },
'full_capacity_percent' => { 'source' => 'both', 'draw' => 'LINE2', 'label' => 'Full/design capacity' , 'info' => 'Battery full charge capacity / ( Battery design capacity / 100 )' },
};
# ------------------------------------ start here -----------------------------------
if (defined($ARGV[0]) and ($ARGV[0] eq 'autoconf'))
{
printf("%s\n", (-e $proc_path or -e $sys_path) ? "yes" : "no ($proc_path and $sys_path not exists)");
exit (0);
}
init();
if ($ARGV[0] and $ARGV[0] eq "config")
{
my %config;
my $info = read_info();
foreach my $graph (keys %{$graphs})
{
my @order;
$config{$graph}{'graph'}{'title'} = sprintf($graphs->{$graph}{'title'}, 'Mean batteryes');
$config{$graph}{'graph'}{'args'} = $graphs->{$graph}{'args'};
$config{$graph}{'graph'}{'vlabel'} = $graphs->{$graph}{'vlabel'};
$config{$graph}{'graph'}{'category'} = 'sensors';
foreach my $field (@{$graphs->{$graph}{'fields'}})
{
if(($proc_data_exists and $fields->{$field}{'source'} eq 'proc') or $fields->{$field}{'source'} eq 'both')
{
$config{$graph}{'fields'}{$field}{'label'} = $fields->{$field}{'label'};
$config{$graph}{'fields'}{$field}{'info'} = $fields->{$field}{'info'};
$config{$graph}{'fields'}{$field}{'draw'} = $fields->{$field}{'draw'};
$config{$graph}{'fields'}{$field}{'type'} = 'GAUGE';
push(@order, $field);
}
}
$config{$graph}{'graph'}{'order'} = join(' ', @order);
for (my $i = 0; $i < $batteryes_count; $i++)
{
my @b_order;
my $battery_name = sprintf("BAT%s", $i);
my $graph_name = sprintf("%s.%s", $graph, $battery_name);
$config{$graph_name}{'graph'}{'title'} = sprintf($graphs->{$graph}{'title'}, $battery_name);
$config{$graph_name}{'graph'}{'info'} = sprintf("%s battery %s %s (sn: %s)", $info->{$i}{'battery_type'}, $info->{$i}{'manufacturer'}, $info->{$i}{'model_name'}, $info->{$i}{'serial_number'});
$config{$graph_name}{'graph'}{'args'} = '--base 1000';
$config{$graph_name}{'graph'}{'vlabel'} = $graphs->{$graph}{'vlabel'};
$config{$graph_name}{'graph'}{'category'} = 'sensors';
foreach my $field (@{$graphs->{$graph}{'fields'}})
{
if(($proc_data_exists and $fields->{$field}{'source'} eq 'proc') or $fields->{$field}{'source'} eq 'both')
{
$config{$graph_name}{'fields'}{$field}{'label'} = $fields->{$field}{'label'};
$config{$graph_name}{'fields'}{$field}{'info'} = $fields->{$field}{'info'};
$config{$graph_name}{'fields'}{$field}{'draw'} = $fields->{$field}{'draw'};
$config{$graph_name}{'fields'}{$field}{'type'} = 'GAUGE';
push(@b_order, $field);
}
}
$config{$graph_name}{'graph'}{'order'} = join(' ', @b_order);
}
}
# ---------------- print ------------------
foreach my $graph (sort keys %config)
{
printf("multigraph %s\n", $graph);
foreach my $g_option(sort keys %{$config{$graph}{'graph'}})
{
printf("graph_%s %s\n", $g_option, $config{$graph}{'graph'}{$g_option});
}
foreach my $field (sort keys %{$config{$graph}{'fields'}})
{
foreach my $f_option (sort keys %{$config{$graph}{'fields'}{$field}})
{
printf("%s.%s %s\n", $field, $f_option, $config{$graph}{'fields'}{$field}{$f_option});
}
}
print "\n";
}
exit (0);
}
# ----------------------------- values ---------------------------------------------
my $data = read_data();
foreach my $graph (sort keys %{$graphs})
{
printf ("multigraph %s\n", $graph);
foreach my $field (sort @{$graphs->{$graph}{'fields'}})
{
my $field_summ = 0;
if(($proc_data_exists and $fields->{$field}{'source'} eq 'proc') or $fields->{$field}{'source'} eq 'both')
{
for (my $i = 0; $i < $batteryes_count; $i++)
{
$field_summ += $data->{$i}{$field};
}
printf("%s.value %s\n", $field, $field_summ/$batteryes_count);
}
}
print "\n";
for (my $i = 0; $i < $batteryes_count; $i++)
{
my $graph_name = sprintf("%s.BAT%s", $graph, $i);
printf ("multigraph %s\n", $graph_name);
foreach my $field (sort @{$graphs->{$graph}{'fields'}})
{
if(($proc_data_exists and $fields->{$field}{'source'} eq 'proc') or $fields->{$field}{'source'} eq 'both')
{
printf("%s.value %s\n", $field, $data->{$i}{$field});
}
}
print "\n";
}
}
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