监控nginx脚本

监控nginx脚本：

本脚本功能：

• 支持nginx服务状态数据显示
• 支持运行的web应用健康检测

#!/bin/bash

#********************************************************************
# File Name: ngx.sh
# Version: V1.0
# Author: dahuangji
# Email: 
# Created Time : 2022-02-19 02:13:16
# Description:
#********************************************************************

RED='\E[31;1m'
GREEN='\E[32;1m'
END='\E[0m'
n_port=$1
n_state=$2

ngx_state(){
	curl 127.0.0.1:$n_port/ngx_status 2>/dev/null|egrep -io "$n_state: [[:digit:]]*"|cut -d ' ' -f2
}
ngx_accepts(){
	curl 127.0.0.1:$n_port/ngx_status 2>/dev/null|awk 'NR==3{print $1}'
}
ngx_handled(){
	curl 127.0.0.1:$n_port/ngx_status 2>/dev/null|awk 'NR==3{print $2}'
}
ngx_requests(){
	curl 127.0.0.1:$n_port/ngx_status 2>/dev/null|awk 'NR==3{print $3}'
}
ngx_active(){
	curl 127.0.0.1/ngx_status 2>/dev/null|awk 'NR==1{print $3}'
}
web_status(){
	n_code=`curl 127.0.0.1:$n_port/index.html -I 2>/dev/null|awk 'NR==1{print $2}'`
	if [[ $n_code = 20* ]] ;then
        	echo 1
	elif [[ $n_code = 40* ]] ;then
        	echo $n_code
	elif [[ $n_code = 50* ]] ;then
        	echo $n_code
	fi
}

case  $2 in
	active)
		ngx_active ;;
	accepts)
		ngx_accepts ;;
	handled)
		ngx_handled ;;
	requests)
		ngx_requests ;;
	reading)
		ngx_state  ;;
	writing)
		ngx_state ;;
	waiting)
		ngx_state ;;
	web_status)
		web_status ;;
	*)
		echo -e "$RED必须给定nginx信息(大小写不敏感) $END"
		echo "----------------------------------"
		echo "用法： $0 端口 状态"
		echo "示例： $0 80 requests"
		;;
esac