[bradm] Fixes from pep8 run, added sysvinit daemon services monitoring, use services() to get services to monitor
This commit is contained in:
Brad Marshall
parent
a02bf5bf9e
commit
b839d5ec39
189
files/nrpe-external-master/check_exit_status.pl
Executable file
189
files/nrpe-external-master/check_exit_status.pl
Executable file
@ -0,0 +1,189 @@
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#!/usr/bin/perl
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################################################################################
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# #
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# Copyright (C) 2011 Chad Columbus <ccolumbu@hotmail.com> #
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# #
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# This program is free software; you can redistribute it and/or modify #
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# it under the terms of the GNU General Public License as published by #
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# the Free Software Foundation; either version 2 of the License, or #
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# (at your option) any later version. #
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# #
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# This program is distributed in the hope that it will be useful, #
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# but WITHOUT ANY WARRANTY; without even the implied warranty of #
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
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# GNU General Public License for more details. #
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# #
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# You should have received a copy of the GNU General Public License #
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# along with this program; if not, write to the Free Software #
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA #
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# #
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################################################################################
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use strict;
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use Getopt::Std;
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$| = 1;
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my %opts;
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getopts('heronp:s:', \%opts);
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my $VERSION = "Version 1.0";
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my $AUTHOR = '(c) 2011 Chad Columbus <ccolumbu@hotmail.com>';
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# Default values:
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my $script_to_check;
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my $pattern = 'is running';
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my $cmd;
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my $message;
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my $error;
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# Exit codes
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my $STATE_OK = 0;
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my $STATE_WARNING = 1;
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my $STATE_CRITICAL = 2;
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my $STATE_UNKNOWN = 3;
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# Parse command line options
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if ($opts{'h'} || scalar(%opts) == 0) {
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&print_help();
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exit($STATE_OK);
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}
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# Make sure scipt is provided:
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if ($opts{'s'} eq '') {
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# Script to run not provided
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print "\nYou must provide a script to run. Example: -s /etc/init.d/httpd\n";
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exit($STATE_UNKNOWN);
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} else {
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$script_to_check = $opts{'s'};
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}
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# Make sure only a-z, 0-9, /, _, and - are used in the script.
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if ($script_to_check =~ /[^a-z0-9\_\-\/\.]/) {
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# Script contains illegal characters exit.
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print "\nScript to check can only contain Letters, Numbers, Periods, Underscores, Hyphens, and/or Slashes\n";
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exit($STATE_UNKNOWN);
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}
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# See if script is executable
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if (! -x "$script_to_check") {
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print "\nIt appears you can't execute $script_to_check, $!\n";
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exit($STATE_UNKNOWN);
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}
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# If a pattern is provided use it:
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if ($opts{'p'} ne '') {
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$pattern = $opts{'p'};
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}
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# If -r run command via sudo as root:
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if ($opts{'r'}) {
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$cmd = "sudo -n $script_to_check status" . ' 2>&1';
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} else {
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$cmd = "$script_to_check status" . ' 2>&1';
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}
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my $cmd_result = `$cmd`;
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chomp($cmd_result);
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if ($cmd_result =~ /sudo/i) {
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# This means it could not run the sudo command
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$message = "$script_to_check CRITICAL - Could not run: 'sudo -n $script_to_check status'. Result is $cmd_result";
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$error = $STATE_UNKNOWN;
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} else {
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# Check exitstatus instead of output:
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if ($opts{'e'} == 1) {
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if ($? != 0) {
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# error
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$message = "$script_to_check CRITICAL - Exit code: $?\.";
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if ($opts{'o'} == 0) {
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$message .= " $cmd_result";
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}
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$error = $STATE_CRITICAL;
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} else {
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# success
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$message = "$script_to_check OK - Exit code: $?\.";
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if ($opts{'o'} == 0) {
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$message .= " $cmd_result";
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}
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$error = $STATE_OK;
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}
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} else {
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my $not_check = 1;
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if ($opts{'n'} == 1) {
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$not_check = 0;
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}
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if (($cmd_result =~ /$pattern/i) == $not_check) {
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$message = "$script_to_check OK";
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if ($opts{'o'} == 0) {
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$message .= " - $cmd_result";
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}
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$error = $STATE_OK;
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} else {
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$message = "$script_to_check CRITICAL";
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if ($opts{'o'} == 0) {
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$message .= " - $cmd_result";
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}
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$error = $STATE_CRITICAL;
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}
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}
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}
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if ($message eq '') {
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print "Error: program failed in an unknown way\n";
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exit($STATE_UNKNOWN);
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}
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if ($error) {
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print "$message\n";
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exit($error);
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} else {
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# If we get here we are OK
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print "$message\n";
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exit($STATE_OK);
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}
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####################################
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# Start Subs:
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####################################
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sub print_help() {
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print << "EOF";
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Check the output or exit status of a script.
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$VERSION
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$AUTHOR
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Options:
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-h
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Print detailed help screen
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-s
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'FULL PATH TO SCRIPT' (required)
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This is the script to run, the script is designed to run scripts in the
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/etc/init.d dir (but can run any script) and will call the script with
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a 'status' argument. So if you use another script make sure it will
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work with /path/script status, example: /etc/init.d/httpd status
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-e
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This is the "exitstaus" flag, it means check the exit status
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code instead of looking for a pattern in the output of the script.
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-p 'REGEX'
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This is a pattern to look for in the output of the script to confirm it
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is running, default is 'is running', but not all init.d scripts output
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(iptables), so you can specify an arbitrary pattern.
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All patterns are case insensitive.
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-n
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This is the "NOT" flag, it means not the -p pattern, so if you want to
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make sure the output of the script does NOT contain -p 'REGEX'
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-r
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This is the "ROOT" flag, it means run as root via sudo. You will need a
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line in your /etc/sudoers file like:
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nagios ALL=(root) NOPASSWD: /etc/init.d/* status
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-o
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This is the "SUPPRESS OUTPUT" flag. Some programs have a long output
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(like iptables), this flag suppresses that output so it is not printed
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as a part of the nagios message.
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EOF
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}
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60
files/nrpe-external-master/check_status_file.py
Executable file
60
files/nrpe-external-master/check_status_file.py
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@ -0,0 +1,60 @@
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#!/usr/bin/python
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# m
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# mmmm m m mmmm mmmm mmm mm#mm
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# #" "# # # #" "# #" "# #" # #
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# # # # # # # # # #"""" #
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# ##m#" "mm"# ##m#" ##m#" "#mm" "mm
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# # # #
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# " " "
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# This file is managed by puppet. Do not make local changes.
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#
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# Copyright 2014 Canonical Ltd.
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#
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# Author: Jacek Nykis <jacek.nykis@canonical.com>
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#
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import re
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import nagios_plugin
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def parse_args():
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import argparse
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parser = argparse.ArgumentParser(
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description='Read file and return nagios status based on its content',
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formatter_class=argparse.ArgumentDefaultsHelpFormatter)
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parser.add_argument('-f', '--status-file', required=True,
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help='Status file path')
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parser.add_argument('-c', '--critical-text', default='CRITICAL',
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help='String indicating critical status')
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parser.add_argument('-w', '--warning-text', default='WARNING',
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help='String indicating warning status')
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parser.add_argument('-o', '--ok-text', default='OK',
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help='String indicating OK status')
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parser.add_argument('-u', '--unknown-text', default='UNKNOWN',
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help='String indicating unknown status')
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return parser.parse_args()
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def check_status(args):
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nagios_plugin.check_file_freshness(args.status_file, 43200)
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with open(args.status_file, "r") as f:
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content = [l.strip() for l in f.readlines()]
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for line in content:
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if re.search(args.critical_text, line):
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raise nagios_plugin.CriticalError(line)
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elif re.search(args.warning_text, line):
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raise nagios_plugin.WarnError(line)
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elif re.search(args.unknown_text, line):
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raise nagios_plugin.UnknownError(line)
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else:
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print line
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if __name__ == '__main__':
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args = parse_args()
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nagios_plugin.try_check(check_status, args)
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78
files/nrpe-external-master/nagios_plugin.py
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78
files/nrpe-external-master/nagios_plugin.py
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#!/usr/bin/env python
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# m
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# mmmm m m mmmm mmmm mmm mm#mm
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# #" "# # # #" "# #" "# #" # #
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# # # # # # # # # #"""" #
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# ##m#" "mm"# ##m#" ##m#" "#mm" "mm
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# # # #
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# " " "
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# This file is managed by puppet. Do not make local changes.
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# Copyright (C) 2005, 2006, 2007, 2012 James Troup <james.troup@canonical.com>
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import os
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import stat
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import time
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import traceback
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import sys
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################################################################################
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class CriticalError(Exception):
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"""This indicates a critical error."""
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pass
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class WarnError(Exception):
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"""This indicates a warning condition."""
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pass
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class UnknownError(Exception):
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"""This indicates a unknown error was encountered."""
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pass
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def try_check(function, *args, **kwargs):
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"""Perform a check with error/warn/unknown handling."""
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try:
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function(*args, **kwargs)
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except UnknownError, msg:
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print msg
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sys.exit(3)
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except CriticalError, msg:
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print msg
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sys.exit(2)
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except WarnError, msg:
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print msg
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sys.exit(1)
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except:
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print "%s raised unknown exception '%s'" % (function, sys.exc_info()[0])
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print '=' * 60
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traceback.print_exc(file=sys.stdout)
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print '=' * 60
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sys.exit(3)
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################################################################################
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def check_file_freshness(filename, newer_than=600):
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"""Check a file exists, is readable and is newer than <n> seconds (where <n> defaults to 600)."""
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# First check the file exists and is readable
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if not os.path.exists(filename):
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raise CriticalError("%s: does not exist." % (filename))
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if os.access(filename, os.R_OK) == 0:
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raise CriticalError("%s: is not readable." % (filename))
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# Then ensure the file is up-to-date enough
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mtime = os.stat(filename)[stat.ST_MTIME]
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last_modified = time.time() - mtime
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if last_modified > newer_than:
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raise CriticalError("%s: was last modified on %s and is too old (> %s seconds)."
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% (filename, time.ctime(mtime), newer_than))
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if last_modified < 0:
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raise CriticalError("%s: was last modified on %s which is in the future."
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% (filename, time.ctime(mtime)))
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################################################################################
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@ -1,5 +1,6 @@
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#!/usr/bin/python
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import sys
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import os
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from glance_utils import (
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do_openstack_upgrade,
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@ -7,6 +8,7 @@ from glance_utils import (
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migrate_database,
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register_configs,
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restart_map,
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services,
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CLUSTER_RES,
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PACKAGES,
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SERVICES,
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@ -452,7 +454,9 @@ def amqp_changed():
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return
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CONFIGS.write(GLANCE_API_CONF)
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@hooks.hook('nrpe-external-master-relation-joined', 'nrpe-external-master-relation-changed')
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@hooks.hook('nrpe-external-master-relation-joined',
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'nrpe-external-master-relation-changed')
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def update_nrpe_config():
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# Find out if nrpe set nagios_hostname
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hostname = None
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@ -470,16 +474,35 @@ def update_nrpe_config():
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else:
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current_unit = local_unit()
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nrpe.add_check(
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shortname='glance-api',
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description='process check {%s}' % current_unit,
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check_cmd = 'check_upstart_job glance-api',
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)
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nrpe.add_check(
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shortname='glance-registry',
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description='process check {%s}' % current_unit,
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check_cmd = 'check_upstart_job glance-registry',
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)
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services_to_monitor = services()
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for service in services_to_monitor:
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upstart_init = '/etc/init/%s.conf' % service
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sysv_init = '/etc/init.d/%s' % service
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if os.path.exists(upstart_init):
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nrpe.add_check(
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shortname=service,
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description='process check {%s}' % current_unit,
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check_cmd='check_upstart_job %s' % service,
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)
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elif os.path.exists(sysv_init):
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cronpath = '/etc/cron.d/nagios-service-check-%s' % service
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checkpath = os.path.join(os.environ['CHARM_DIR'],
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'files/nrpe-external-master',
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'check_exit_status.pl'),
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cron_template = '*/5 * * * * root \
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%s -s /etc/init.d/%s status > /var/lib/nagios/service-check-%s.txt\n' \
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% (checkpath[0], service, service)
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f = open(cronpath, 'w')
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f.write(cron_template)
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f.close()
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nrpe.add_check(
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shortname=service,
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description='process check {%s}' % current_unit,
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check_cmd='check_status_file.py -f \
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/var/lib/nagios/service-check-%s.txt' % service,
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)
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nrpe.write()
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