/usr/share/checkservice/check/postgresql.plugin is in checkservice 1.1.0-12.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 | #!/usr/bin/perl
# Checks if a PostgreSQL-server is online
# Copyright (c) 2000 Mark van Eijk <mark@luon.net>
# Notes:
# Make sure that the remote host accepts PostgreSQL-connections to
# the 'template1' database from the host this plugin runs on.
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
# use strict here to ensure 'decent' coding
use strict;
use Getopt::Std;
# added for database interfacing
use DBI;
use DBD::Pg;
# if extra options are needed add them in the next few lines
# use the $opt_? syntax
use vars qw($opt_p $opt_t $opt_h);
getopts("p:t:h:");
# standard port for PostgreSQL is 5432
my $port = $opt_p || 5432;
my $TIMEOUT = $opt_t || 5;
my $host = $opt_h || "localhost";
exit &serviceGET($host, $port, $TIMEOUT);
sub serviceGET
{
my ($server, $port, $serviceTIMEOUT) = @_;
# return failure status code by default
my $serviceOK = 1;
eval
{
# set timeout alarm
local $SIG{ALRM} = sub { die "Timeout Alarm" };
alarm $serviceTIMEOUT;
# load PostgreSQL database driver
my $psqlDriverHandle = DBI->install_driver("Pg");
# connect to 'template1' database on PostgreSQL server
my $psqlDatabaseHandle = DBI->connect("dbi:Pg:dbname=template1;host=$server;port=$port", "", "");
# check validity of database handle
my $psqlPingResult = $psqlDatabaseHandle->ping;
# disconnect from PostgreSQL server
$psqlDatabaseHandle->disconnect;
# cancel alarm
alarm 0;
if ($psqlPingResult)
{
# change status code to OK
$serviceOK = 0;
}
};
#check for timeout
if ($@ and ($@ =~ /Timeout Alarm/))
{
# change status code to TIMEOUT
$serviceOK = 2;
}
# exit with service status code
return $serviceOK;
}
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