使用nagios+python监控nginx进程数
1、编写python脚本监控nginx
#!/usr/bin/python
# -*- coding: utf-8 -*-
import os, sys, time
import string
import getopt
def usage():
print """check_nginx is a Nagios to monitor nginx status
Usage:
check_nginx [-h|--help][-w|--warning][-c|--critical]
Options:
--help|-h)
print check_nginx help.
--warning|-w)
Sets a warning level for nginx Active connections. Default is: off
--critical|-c)
Sets a critical level for nginx Active connections. Default is: off
Example:
./check_nginx -w 10 -c 5"""
sys.exit(3)
try:
options,args = getopt.getopt(sys.argv[1:],"hw:c:",["help","warning=","critical="])
#“hw:c:”短格式 --- h 后面没有冒号:表示后面不带参数,p:和 i:后面有冒号表示后面需要参数
#["help","warning=","critical="]长格式 --- help后面没有等号=,表示后面不带参数,其他三个有=,表示后面需要参数
#返回值 options 是个包含元祖的列表,每个元祖是分析出来的格式信息,比如 [('-i','127.0.0.1'),('-p','80')] ;
#args 是个列表,包含那些没有‘-’或‘--’的参数,比如:['55','66']
except getopt.GetoptError:
usage()
sys.exit(3)
for name,value in options:
if name in ("-h","--help"):
usage()
if name in ("-w","--warning"):
warning = int(value)
if name in ("-c","--critical"):
critical = int(value)
try:
ret = os.popen('ps -C nginx -o pid,cmd').readlines()
except Exception:
print "NGINX STATUS unknown: Error while getting Connection"
sys.exit(3)
if len(ret) < critical:
print "Critical-nginx process is killed."
sys.exit(2)
elif len(ret) < warning:
print "Warning-nginx process is too low."
sys.exit(1)
else:
print "OK-nginx is running"
sys.exit(0)
2、将脚本check_nginx拷贝到/usr/local/nagios/libexec/下,并chmod +x ./check_nginx
如果你要监控nagios安装本机的nginx进程,请参考如下步骤:
3、在/usr/local/nagios/etc/command中增加如下
define command{
command_name check_nginx
command_line $USER1$/check_nginx -w $ARG1$ -c $ARG2$
}
4、在自己定义的service.cfg中增加
define service{
use generic-service
host_name localhost
service_description nginx
check_command check_nginx!4!2
max_check_attempts 5
normal_check_interval 3
retry_check_interval 2
check_period 24x7
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
contact_groups admins
}
如果需要监控远程主机的nginx进程,请先安装nrpe,然后参考如下
3、Vim /etc/nagios/nrpe.cfg
加入一行
command[check_nginx]=/usr/local/nagios/libexec/check_nginx -w $ARG1$ -c $ARG2$
4、修改/etc/nagios/nrpe.cfg
dont_blame_nrpe=1 #打开参数传递
5、重启nrpe
/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
测试执行
/usr/local/nagios/libexec/check_nrpe -H 127.0.0.1 -c check_nginx -a 4 1
如果能够正常返回值就是正常的
6、在/usr/local/nagios/etc/object/command中增加
define command{
command_namecheck_nrpe
command_line/usr/local/nagios/libexec/check_nrpe–H$HOSTADDRESS$-c $ARG1$ -a $ARG2$ $ARG3$
}
7、在自己定义的service.cfg中增加
define service{
use generic-service
host_name localhost
service_description nginx
check_command check_nrpe!check_nginx!4!2
max_check_attempts 5
normal_check_interval 3
retry_check_interval 2
check_period 24x7
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
contact_groups admins
}
更多相关文章
- python函数不定长参数
- Django反向url与参数到基于类的视图
- shell用户配置详解及bash命令参数
- linux 下命令行传参数问题
- linux 输入参数利用getopt、struct option、getopt_long、getopt
- 使用Bash编写Linux Shell脚本-9. 参数和子壳
- linux-参数-argparse模块-(未完待续)
- 在PreparedStatement中重用参数?
- LINUX下用SHELL脚本执行带输入输出参数的ORACLE存储过程并得到结