Adding NRPE examples.

- These examples correspond to the built-in formatters. - Resolves #15.
etsy · Jun 8, 2014 · 43f53c4 · 43f53c4
1 parent 66bfc84
commit 43f53c4
Show file tree

Hide file tree

Showing 4 changed files with 412 additions and 0 deletions.
diff --git a/contrib/nrpe-plugins/check_cpu_stats.sh b/contrib/nrpe-plugins/check_cpu_stats.sh
@@ -0,0 +1,186 @@
+#!/bin/bash
+# ========================================================================================
+# CPU Utilization Statistics plugin for Nagios 
+#
+# Written by    : Steve Bosek
+# Release   : 2.1
+# Creation date : 8 September 2007
+# Revision date : 28 Februar 2008
+# Package       : DTB Nagios Plugin
+# Description   : Nagios plugin (script) to check cpu utilization statistics.
+#       This script has been designed and written on Unix plateform (Linux, Aix, Solaris), 
+#       requiring iostat as external program. The locations of these can easily 
+#       be changed by editing the variables $IOSTAT at the top of the script. 
+#       The script is used to query 4 of the key cpu statistics (user,system,iowait,idle)
+#       at the same time. Note though that there is only one set of warning 
+#       and critical values for iowait percent.
+#
+# Usage         : ./check_cpu_stats.sh [-w <warn>] [-c <crit] ( [ -i <intervals in second> ] [ -n <report number> ]) 
+# ----------------------------------------------------------------------------------------
+#
+# TODO:  Support for HP-UX
+#             
+#
+# ========================================================================================
+#
+# HISTORY :
+#     Release   |     Date  |    Authors    |   Description
+# --------------+---------------+---------------+------------------------------------------
+#   2.0 |    16.02.08   |  Steve Bosek  | Solaris support and new parameters 
+#               |       |               | New Parameters : - iostat seconds intervals 
+#               |               |               |              - iostat report number
+#  2.1 |  08.06.08 | Steve Bosek | Bug perfdata and convert comma in point for Linux result
+# -----------------------------------------------------------------------------------------
+#   
+# =========================================================================================
+
+# Paths to commands used in this script.  These may have to be modified to match your system setup.
+
+IOSTAT=/usr/bin/iostat
+
+# Nagios return codes
+STATE_OK=0
+STATE_WARNING=1
+STATE_CRITICAL=2
+STATE_UNKNOWN=3
+
+# Plugin parameters value if not define
+WARNING_THRESHOLD=${WARNING_THRESHOLD:="30"}
+CRITICAL_THRESHOLD=${CRITICAL_THRESHOLD:="100"}
+INTERVAL_SEC=${INTERVAL_SEC:="3"}
+NUM_REPORT=${NUM_REPORT:="2"}
+
+# Plugin variable description
+PROGNAME=$(basename $0)
+RELEASE="Revision 2.1"
+AUTHOR="(c) 2008 Steve Bosek ([email protected])"
+
+if [ ! -x $IOSTAT ]; then
+    echo "UNKNOWN: iostat not found or is not executable by the nagios user."
+    exit $STATE_UNKNOWN
+fi
+
+# Functions plugin usage
+print_release() {
+    echo "$RELEASE $AUTHOR"
+}
+
+print_usage() {
+    echo ""
+    echo "$PROGNAME $RELEASE - CPU Utilization check script for Nagios"
+    echo ""
+    echo "Usage: check_cpu_stats.sh -w -c -wi -ci (-i -n)"
+    echo ""
+    echo "  -w  Warning level in % for cpu iowait"
+    echo "  -c  Crical level in % for cpu iowait"
+    echo "  -wi Warn if cpu idle is less than x"
+    echo "  -ci Critical is CPU idle is less than x"
+    echo "  -i  Interval in seconds for iostat (default : 3)"
+    echo "  -n  Number report for iostat (default : 2)"
+    echo "  -h  Show this page"
+    echo ""
+    echo "Usage: $PROGNAME"
+    echo "Usage: $PROGNAME --help"
+    echo ""
+}
+
+print_help() {
+    print_usage
+    echo ""
+    echo "This plugin will check cpu utilization (user,system,iowait,idle in %)"
+    echo ""
+    exit 0
+}
+
+# Parse parameters
+while [ $# -gt 0 ]; do
+    case "$1" in
+        -h | --help)
+            print_help
+            exit $STATE_OK
+            ;;
+        -v | --version)
+                print_release
+                exit $STATE_OK
+                ;;
+        -w | --warning)
+                shift
+                WARNING_THRESHOLD=$1
+                ;;
+        -c | --critical)
+               shift
+                CRITICAL_THRESHOLD=$1
+                ;;
+    -wi | --warn-idle)
+        shift
+        WARN_IDLE=$1
+        ;;
+        -ci | --critical-idle)
+                shift
+                CRIT_IDLE=$1
+                ;;
+        -i | --interval)
+               shift
+               INTERVAL_SEC=$1
+                ;;
+        -n | --number)
+               shift
+               NUM_REPORT=$1
+                ;;        
+        *)  echo "Unknown argument: $1"
+            print_usage
+            exit $STATE_UNKNOWN
+            ;;
+        esac
+shift
+done
+
+# CPU Utilization Statistics Unix Plateform ( Linux,AIX,Solaris are supported )
+case `uname` in
+       Linux ) CPU_REPORT=`iostat -c $INTERVAL_SEC $NUM_REPORT|tail -2|head -n 1| tr -s " " " " `
+               CPU_USER=`echo $CPU_REPORT | cut -d " " -f 1 `
+               CPU_SYSTEM=`echo $CPU_REPORT | cut -d " " -f 3 `
+               CPU_IOWAIT=`echo $CPU_REPORT | cut -d " " -f 4 `
+               CPU_IO=`echo $CPU_IOWAIT | sed s/\\\./""/`
+               CPU_IDLE=`echo $CPU_REPORT | cut -d " " -f 6`
+               CPU_IDL=`echo $CPU_IDLE | sed s/\\\./""/`
+            ;;
+    *)      echo "UNKNOWN: `uname` not yet supported by this plugin. Coming soon !"
+            exit $STATE_UNKNOWN 
+        ;;
+    esac
+
+WARNING_THRESH=$(( $WARNING_THRESHOLD * 100 ))
+CRIT_THRESH=$(( $CRITICAL_THRESHOLD * 100 ))
+WARN_IDLE_THRESH=$(( $WARN_IDLE * 100 ))
+CRIT_IDLE_THRESH=$(( $CRIT_IDLE * 100 ))
+
+OUTPUT="user=${CPU_USER}% system=${CPU_SYSTEM}% iowait=${CPU_IOWAIT}% idle=${CPU_IDLE}% |  user = ${CPU_USER}, system = ${CPU_SYSTEM}, iowait = ${CPU_IOWAIT}, idle = ${CPU_IDLE}  "
+
+find_top_five_procs_by_cpu() {
+    echo "TOP 5 PROCESSES BY CPU:"
+    ps -eo %cpu,cputime,user,pid,args --sort -%cpu | head -n 6 | awk '{command = substr($0, index($0,$5)); printf "%5s %12s %12s %6s %s\n", $1, $2, $3, $4, command}'
+}
+
+# Return
+if [ $CPU_IO -ge $CRIT_THRESH ]; then
+    echo "CRITICAL CPU iowait is > ${CRITICAL_THRESHOLD}%: ${OUTPUT}"
+    find_top_five_procs_by_cpu
+    exit $STATE_CRITICAL
+elif [ $CPU_IO -ge $WARNING_THRESH ]; then
+    echo "WARNING CPU iowait is > ${WARNING_THRESHOLD}%: ${OUTPUT}"
+    find_top_five_procs_by_cpu
+    exit $STATE_WARNING
+elif [ $CPU_IDL -le $CRIT_IDLE_THRESH ]; then
+    echo "CRITICAL CPU idle is < ${CRIT_IDLE}%: ${OUTPUT}"
+    find_top_five_procs_by_cpu
+    exit $STATE_CRITICAL
+elif [ $CPU_IDL -le $WARN_IDLE_THRESH ]; then
+    echo "WARNING CPU idle is < ${WARN_IDLE}%: ${OUTPUT}"
+    find_top_five_procs_by_cpu
+    exit $STATE_WARNING
+else
+    echo "OK: ${OUTPUT}"
+    exit $STATE_OK
+fi
+
diff --git a/contrib/nrpe-plugins/check_disk.sh b/contrib/nrpe-plugins/check_disk.sh
@@ -0,0 +1,34 @@
+#!/bin/bash
+# This script wraps around the `check_disk` command available in the nagios-plugins package.
+
+WARN_THRES="10%"
+CRIT_THRES="5%"
+EXCLUDE_PATH=""
+EXCLUDE_FS=""
+
+# We can exclude directories...
+EXCLUDE_OPTS=""
+EXCLUDE_FS_OPTS=""
+
+if [ -n "$EXCLUDE_PATH" ]
+then
+    EXCLUDE_OPTS="-x ${EXCLUDE_PATH}"
+fi
+
+if [ -n "$EXCLUDE_FS" ]
+then
+    EXCLUDE_FS_OPTS="-x ${EXCLUDE_FS}"
+fi
+
+# Call check_disk
+/usr/local/nagios-plugins/check_disk -l -e -w $WARN_THRES -c $CRIT_THRES $EXCLUDE_OPTS $EXCLUDE_FS_OPTS
+
+# Store the return code so we can exit with the right code even after doing other things. 
+RETURN=$?
+
+# Print the check's thresholds.
+printf "\nTHRESHOLDS - WARNING:%s;CRITICAL:%s;\n\n" $WARN_THRES $CRIT_THRES
+# Print the output of `df` for the 'additional details' section.
+df -h
+
+exit $RETURN