nagios监控 nginx

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一. nagios监控nginx 1. 下载     wget http://www.monitoringexchange.org/attachment/download/Check-Plugins/Software/check_nginx-sh/check_nginx.sh -P /usr/local/nagios/libexec/ 2. 修改拥有者和权限     chown nagios:nagios /usr/local/nagios/libexec/check_nginx.sh && chmod a+x /usr/local/nagios/libexec/check_nginx.sh 3. nrpe配置文件添加命令     vi /usr/local/nagios/etc/nrpe.cfg       command[check_nginx]=/usr/local/nagios/libexec/check_nginx.sh -H hostip -P port -p /usr/local/nginx -n nginx.pid 4. 重载nrpe     service nrpe restart 5. 编辑nagios服务器文件     vi /usr/local/nagios/etc/linuxjcq/linux.cfg     define service{     use local-service     host_name linuxjcq01     service_description 05. The Nginx Status     check_command check_nrpe!check_nginx     } 6. 重载nagios     service nagios restart 将其中的hostname修改成你配置文件中定义的主机名,重启nagios     service nagios restart   以下是我配置的部分截图,一般情况要可以查看nginx状态才行 check_nginx.sh  脚本内容 [[email protected] ~]# cat /usr/local/nagios/libexec/check_nginx.sh #!/bin/sh #   This program is free software; you can redistribute it and/or modify #   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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA PROGNAME=`basename $0` VERSION="Version 1.1," AUTHOR="2009, Mike Adolphs (http://www.matejunkie.com/)" ST_OK=0 ST_WR=1 ST_CR=2 ST_UK=3 hostname="localhost" port=80 path_pid=/var/run name_pid="nginx.pid" status_page="nginx_status" pid_check=1 secure=0 print_version() {     echo "$VERSION $AUTHOR" } print_help() {     print_version $PROGNAME $VERSION     echo ""     echo "$PROGNAME is a Nagios plugin to check whether nginx is running."     echo "It also parses the nginx's status page to get requests and"     echo "connections per second as well as requests per connection. You"     echo "may have to alter your nginx configuration so that the plugin"     echo "can access the server's status page."     echo "The plugin is highly configurable for this reason. See below for"     echo "available options."     echo ""     echo "$PROGNAME -H localhost -P 80 -p /var/run -n nginx.pid "         echo "  -s nginx_statut -o /tmp [-w INT] [-c INT] [-S] [-N]"     echo ""     echo "Options:"     echo "  -H/--hostname)"     echo "     Defines the hostname. Default is: localhost"     echo "  -P/--port)"     echo "     Defines the port. Default is: 80"     echo "  -p/--path-pid)"     echo "     Path where nginx's pid file is being stored. You might need"     echo "     to alter this path according to your distribution. Default"     echo "     is: /var/run"     echo "  -n/--name_pid)"     echo "     Name of the pid file. Default is: nginx.pid"     echo "  -N/--no-pid-check)"     echo "     Turn this on, if you don't want to check for a pid file"     echo "     whether nginx is running, e.g. when you're checking a"     echo "     remote server. Default is: off"     echo "  -s/--status-page)"     echo "     Name of the server's status page defined in the location"     echo "     directive of your nginx configuration. Default is:"     echo "     nginx_status"     echo "  -S/--secure)"     echo "     In case your server is only reachable via SSL, use this"     echo "     this switch to use HTTPS instead of HTTP. Default is: off"     echo "  -w/--warning)"     echo "     Sets a warning level for requests per second. Default is: off"     echo "  -c/--critical)"     echo "     Sets a critical level for requests per second. Default is:"         echo "     off"     exit $ST_UK } while test -n "$1"; do     case "$1" in         -help|-h)             print_help             exit $ST_UK             ;;         --version|-v)             print_version $PROGNAME $VERSION             exit $ST_UK             ;;         --hostname|-H)             hostname=$2             shift             ;;         --port|-P)             port=$2             shift             ;;         --path-pid|-p)             path_pid=$2             shift             ;;         --name-pid|-n)             name_pid=$2             shift             ;;         --no-pid-check|-N)             pid_check=0             ;;         --status-page|-s)             status_page=$2             shift             ;;         --secure|-S)             secure=1             ;;         --warning|-w)             warning=$2             shift             ;;         --critical|-c)             critical=$2             shift             ;;         *)             echo "Unknown argument: $1"             print_help             exit $ST_UK             ;;         esac     shift done get_wcdiff() {     if [ ! -z "$warning" -a ! -z "$critical" ]     then         wclvls=1         if [ ${warning} -ge ${critical} ]         then             wcdiff=1         fi     elif [ ! -z "$warning" -a -z "$critical" ]     then         wcdiff=2     elif [ -z "$warning" -a ! -z "$critical" ]     then         wcdiff=3     fi } val_wcdiff() {     if [ "$wcdiff" = 1 ]     then         echo "Please adjust your warning/critical thresholds. The warning \ must be lower than the critical level!"         exit $ST_UK     elif [ "$wcdiff" = 2 ]     then         echo "Please also set a critical value when you want to use \ warning/critical thresholds!"         exit $ST_UK     elif [ "$wcdiff" = 3 ]     then         echo "Please also set a warning value when you want to use \ warning/critical thresholds!"         exit $ST_UK     fi } check_pid() {     if [ -f "$path_pid/$name_pid" ]     then         retval=0     else         retval=1     fi } get_status() {     if [ "$secure" = 1 ]     then         wget_opts="-O- -q -t 3 -T 3 --no-check-certificate"         out1=`wget ${wget_opts} http://${hostname}:${port}/${status_page}`         sleep 1         out2=`wget ${wget_opts} http://${hostname}:${port}/${status_page}`     else                 wget_opts="-O- -q -t 3 -T 3"         out1=`wget ${wget_opts} http://${hostname}:${port}/${status_page}`         sleep 1         out2=`wget ${wget_opts} http://${hostname}:${port}/${status_page}`     fi     if [ -z "$out1" -o -z "$out2" ]     then         echo "UNKNOWN - Local copy/copies of $status_page is empty."         exit $ST_UK     fi } get_vals() {     tmp1_reqpsec=`echo ${out1}|awk '{print $10}'`     tmp2_reqpsec=`echo ${out2}|awk '{print $10}'`     reqpsec=`expr $tmp2_reqpsec - $tmp1_reqpsec`     tmp1_conpsec=`echo ${out1}|awk '{print $9}'`     tmp2_conpsec=`echo ${out2}|awk '{print $9}'`     conpsec=`expr $tmp2_conpsec - $tmp1_conpsec`     reqpcon=`echo "scale=2; $reqpsec / $conpsec" | bc -l`     if [ "$reqpcon" = ".99" ]     then         reqpcon="1.00"     fi } do_output() {     output="nginx is running. $reqpsec requests per second, $conpsec \ connections per second ($reqpcon requests per connection)" } do_perfdata() {     perfdata="'reqpsec'=$reqpsec 'conpsec'=$conpsec 'conpreq'=$reqpcon" } # Here we go! get_wcdiff val_wcdiff if [ ${pid_check} = 1 ] then     check_pid     if [ "$retval" = 1 ]     then         echo "There's no pid file for nginx. Is nginx running? Please \ also make sure whether your pid path and name is correct."         exit $ST_CR     fi fi get_status get_vals do_output do_perfdata if [ -n "$warning" -a -n "$critical" ] then     if [ "$reqpsec" -ge "$warning" -a "$reqpsec" -lt "$critical" ]     then         echo "WARNING - ${output} | ${perfdata}"         exit $ST_WR     elif [ "$reqpsec" -ge "$critical" ]     then         echo "CRITICAL - ${output} | ${perfdata}"         exit $ST_CR     else         echo "OK - ${output} | ${perfdata} ]"         exit $ST_OK     fi else     echo "OK - ${output} | ${perfdata}"     exit $ST_OK fi [[email protected] ~]#

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