ports/151995: nagios check cpu usage

[Marián Jamrich]

>Number:         151995
>Category:       ports
>Synopsis:       nagios check cpu usage
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Sat Nov 06 21:00:16 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Marián Jamrich
>Release:        8.1
>Organization:
>Environment:
FreeBSD trinity.vx.sk 8.1-STABLE FreeBSD 8.1-STABLE #1 r212791: Wed Nov  3 11:37:30 CET 2010     root at trinity.vx.sk:/usr/obj/usr/src/sys/MYKERNEL  amd64
>Description:
Nagios Plugin to check your actually CPU utilization.

- Marián Jamrich
jamrich.majo at gmail.com
>How-To-Repeat:

>Fix:


Patch attached with submission follows:

# This is a shell archive.  Save it in a file, remove anything before
# this line, and then unpack it by entering "sh file".  Note, it may
# create directories; files and directories will be owned by you and
# have default permissions.
#
# This archive contains:
#
#	/tmp/home/jamrich/port/work/check_cpu_usage
#
echo x - /tmp/home/jamrich/port/work/check_cpu_usage
sed 's/^X//' >/tmp/home/jamrich/port/work/check_cpu_usage << '87363c859dcd04abe63b096e8c513458'
X#!/bin/sh
X#
X# Plugin return codes
X#
X# OK = 0
X# The plugin was able to check the service and it appeared to be functioning properly
X#
X# Warning = 1
X# The plugin was able to check the service, but it appeared to be above some "warning" threshold or did not appear to be working properly
X#
X# Critical = 2
X# The plugin detected that either the service was not running or it was above some "critical" threshold
X#
X# Unknown = 3
X# Invalid command line arguments were supplied to the plugin or low-level failures internal to the plugin (such as unable to fork, or open a tcp socket) that prevent it from performing the specified operation. Higher-level errors (such as name resolution errors, socket timeouts, etc) are outside of the control of plugins and should generally NOT be reported as UNKNOWN states.
X
XST_OK=0
XST_WR=1
XST_CR=2
XST_UN=3
X
X# Plugin name
XPROGNAME=`basename $0`
X
X# Version
XVERSION="Version 1.0,"
X
X# Author
XAUTHOR=""
X
X# TOP command
Xtop=`which top`
Xbc=`which bc`
X
Xprint_version() {
X    echo "$VERSION $AUTHOR"
X}
X
Xprint_help() {
X    print_version $PROGNAME $VERSION
X    echo ""
X    echo "$PROGNAME is a Nagios plugin to check CPU utilization."
X    echo ""
X    echo "Options:"
X    echo ""
X    echo "--warning | -w"
X    echo "--critical | -c"
X    echo "--help | --usage"
X    echo ""
X    echo "Usage:"
X    echo ""
X    echo "./check_cpu_usage -w 80 -c 100"
X    exit $ST_UN
X}
X
Xcase "$1" in
X        --help|-h|--usage|-u)
X            print_help
X            exit $ST_UN
X            ;;
X        --warning|-w)
X            host=$2
X            ;;
X        --critical|-c)
X            host=$2
X            ;;
X        *)
X            echo "Unknown argument: $1"
X            echo "For more information please try -h or --help!"
X            exit $ST_UN
X            ;;
Xesac
Xshift
X
Xif [ `uname` != "FreeBSD" ]; then
X	echo "This plugin is only for FreeBSD."
Xfi
X
Xif [ -z $1 ] || [ -z $3 ]; then
X        print_help
X	exit  $ST_UN
Xfi
X
Xif [ "$1" -ge "$3" ]; then
X	echo "Warning value must be greater than critical value!"
X	exit $ST_UN
Xfi
X
Xcpu_idle=$($top -n -d 2 | /usr/bin/grep idle | /usr/bin/awk '{print $10}' | /usr/bin/sed 's/%//')
Xcpu_usage=`echo 100-$cpu_idle| $bc | sed 's/^\./0./'`
X
X
Xif [ $(echo "$cpu_usage>$1"|$bc) -gt 0 ] && [ $(echo "$cpu_usage<$3"|$bc) -gt 0 ]; then
X	echo "WARNING - CPU usage is $cpu_usage% for server `hostname`. | http_state=$cpu_usage"
X        exit 1
Xelif [ $(echo "$cpu_usage>$3"|$bc) -gt 0 ]; then
X	echo "CRITICAL - CPU usage is $cpu_usage% for server `hostname`. | http_state=$cpu_usage"
X        exit 2
Xelse
X	echo "OK - CPU usage is $cpu_usage% for server `hostname`. | http_state=$cpu_usage"
X	exit 0
Xfi
87363c859dcd04abe63b096e8c513458
exit



>Release-Note:
>Audit-Trail:
>Unformatted: