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#!/usr/bin/env perl
use autodie;
use strict;
use warnings;
use 5.010;
use Getopt::Long qw/:config bundling/;
use Term::ANSIColor;
my ($data, $cache, $extra);
my $status_file = '/var/lib/icinga/status.dat';
my $context;
my $colours = 1;
my $short = 0;
my $list_type = 's';
my ($for_host);
sub have_host {
my ($host) = @_;
if ($list_type eq 's') {
return exists $data->{services}->{$host};
}
elsif ($list_type eq 'h') {
return exists $data->{hosts}->{$host};
}
}
sub with_colour {
my ($text, $colour) = @_;
if ($colours) {
return colored($text, $colour);
}
else {
return $text;
}
}
sub read_status_line {
my ($line) = @_;
if ($line =~ / ^ (?<context> \w+) \s+ { /x) {
$context = $+{context};
}
elsif ($line =~ / ^ \t* (?<key> [^=]+ ) = (?<value> .*) $ /x) {
$cache->{$+{key}} = $+{value};
}
elsif ($line =~ / ^ \t* } \s* $ /x) {
given($context) {
when(['info', 'programstatus']) {
$data->{$context} = $cache;
}
when('hoststatus') {
$data->{hosts}->{$cache->{host_name}} = $cache;
}
when('servicestatus') {
push(@{$data->{services}->{$cache->{host_name}}}, $cache);
}
when('contactstatus') {
push(@{$data->{contacts}}, $cache);
}
default {
warn("Unknown field in $status_file: $context\n");
}
}
$cache = undef;
}
}
sub read_status {
open(my $fh, '<', $status_file);
while (my $line = <$fh>) {
chomp($line);
read_status_line($line);
}
close($fh);
}
sub enhance_status {
HOST: for my $h (keys %{$data->{services}}) {
for my $s (@{$data->{services}->{$h}}) {
if ($s->{current_state} != 0) {
$extra->{$h}->{service_problem} = 1;
next HOST;
}
}
}
}
sub service_state {
my ($digit) = @_;
given ($digit) {
when(0) { return with_colour(' OK ', 'black on_green' ) }
when(1) { return with_colour(' WARNING', 'black on_yellow') }
when(2) { return with_colour('CRITICAL', 'white on_red' ) }
when(3) { return with_colour(' UNKNOWN', 'white on_blue' ) }
default { return $digit }
}
}
sub host_state {
my ($digit) = @_;
given($digit) {
when(0) { return with_colour(' OK ', 'black on_green') }
when(1) { return with_colour(' DOWN ', 'white on_red' ) }
when(2) { return with_colour('UNREACHABLE', 'white on_blue' ) }
default { return $digit }
}
}
sub display_service {
my ($s) = @_;
printf(
"%-20.20s %s %s\n",
$s->{service_description},
service_state($s->{current_state}),
$s->{plugin_output},
);
}
sub display_host_services {
my ($host, $all) = @_;
if ($all and (not $short or $extra->{$host}->{service_problem})) {
say "\n$host";
}
foreach my $service (@{$data->{services}->{$host}}) {
if ($short and not $service->{current_state}) {
next;
}
if ($all) {
print "\t";
}
display_service($service);
}
}
sub display_host_single {
my ($host) = @_;
my $h = $data->{hosts}->{$host};
if ($short and not $h->{current_state}) {
return;
}
printf(
"%-32.32s %s %s\n",
$h->{host_name},
host_state($h->{current_state}),
$h->{plugin_output},
);
}
sub display_host {
my ($host, $all) = @_;
if ($list_type eq 'h') {
display_host_single($host);
}
elsif ($list_type eq 's') {
display_host_services($host, $all);
}
}
GetOptions(
'C|no-colours' => sub { $colours = 0 },
'f|status-file=s' => \$status_file,
'h|host=s' => \$for_host,
'l|list=s' => sub { $list_type = substr($_[1], 0, 1) },
's|short' => \$short,
);
read_status();
enhance_status();
if ($for_host) {
if (have_host($for_host)) {
display_host($for_host, 0);
}
else {
die("Unknown host: $for_host (You need to use the Alias name)\n");
}
}
elsif ($list_type eq 's') {
foreach my $host (sort keys %{$data->{services}}) {
display_host($host, 1);
}
}
elsif ($list_type eq 'h') {
foreach my $host (sort keys %{$data->{hosts}}) {
display_host($host, 1);
}
}
__END__
=head1 NAME
B<icli> - Icinga Command Line Interface
=head1 SYNOPSIS
B<icli> [B<-h> I<host>]
=head1 DESCRIPTION
B<icli> is a command line interface to Icinga. By default it lists all
services and their states.
=head1 OPTIONS
=over
=item B<-C>/B<--no-colours>
Disable colours in output
=item B<-f>/B<--status-file> I<file>
Read the status from I<file> instead of the default
F</var/lib/icinga/status.dat>
=item B<-h>/B<--host> I<host>
Only show I<host>'s services
=item B<-l>/B<--list> B<hosts>|B<services>
List either services (the default) or hosts.
Note that only the first character of the argument is checked, so C<< icinga
-lh >> and C<< icinga -ls >> are also fine.
=item B<-s>/B<--short>
Only show services which are not OK
=back
=head1 EXIT STATUS
Zero, unless errors occured.
=head1 CONFIGURATION
None.
=head1 DEPENDENCIES
None, so far.
=head1 BUGS AND LIMITATIONS
This software is in early development stages. So there will probably be quite
a lot.
=head1 AUTHOR
Copyright (C) 2010 by Daniel Friesel E<lt>derf@chaosdorf.deE<gt>
=head1 LICENSE
0. You just DO WHAT THE FUCK YOU WANT TO.
|
