zabbix监控tcp/nginx/memcache连接数自定义监控shell

#!/bin/bash
tcp_status_fun(){
TCP_STAT=$1
#netstat -n | awk '/^tcp/ {++state[$NF]} END {for(key in state) print key,state[key]}' > /tmp/netstat.tmp
ss -ant | awk 'NR>1 {++s[$1]} END {for(k in s) print k,s[k]}' > /tmp/netstat.tmp
TCP_STAT_VALUE=$(grep "$TCP_STAT" /tmp/netstat.tmp | cut -d ' ' -f2)
if [ -z $TCP_STAT_VALUE ];then
TCP_STAT_VALUE=0
fi
echo $TCP_STAT_VALUE
}

nginx_status_fun(){
NGINX_PORT=$1
NGINX_COMMAND=$2
nginx_active(){
/usr/bin/curl "http://127.0.0.1:"$NGINX_PORT"/nginx_status/" 2>/dev/null| grep 'Active' | awk '{print $NF}'
}
nginx_reading(){
/usr/bin/curl "http://127.0.0.1:"$NGINX_PORT"/nginx_status/" 2>/dev/null| grep 'Reading' | awk '{print $2}'
}
nginx_writing(){
/usr/bin/curl "http://127.0.0.1:"$NGINX_PORT"/nginx_status/" 2>/dev/null| grep 'Writing' | awk '{print $4}'
}
nginx_waiting(){
/usr/bin/curl "http://127.0.0.1:"$NGINX_PORT"/nginx_status/" 2>/dev/null| grep 'Waiting' | awk '{print $6}'
}
nginx_accepts(){
/usr/bin/curl "http://127.0.0.1:"$NGINX_PORT"/nginx_status/" 2>/dev/null| awk NR==3 | awk '{print $1}'
}
nginx_handled(){
/usr/bin/curl "http://127.0.0.1:"$NGINX_PORT"/nginx_status/" 2>/dev/null| awk NR==3 | awk '{print $2}'
}
nginx_requests(){
/usr/bin/curl "http://127.0.0.1:"$NGINX_PORT"/nginx_status/" 2>/dev/null| awk NR==3 | awk '{print $3}'
}
case $NGINX_COMMAND in
active)
nginx_active;
;;
reading)
nginx_reading;
;;
writing)
nginx_writing;
;;
waiting)
nginx_waiting;
;;
accepts)
nginx_accepts;
;;
handled)
nginx_handled;
;;
requests)
nginx_requests;
esac
}

memcached_status_fun(){
M_PORT=$1
M_COMMAND=$2
echo -e "stats\nquit" | nc 127.0.0.1 "$M_PORT" | grep "STAT $M_COMMAND " | awk '{print $3}'
}

redis_status_fun(){
R_PORT=$1
R_COMMAND=$2
(echo -en "INFO \r\n";sleep 1;) | nc 127.0.0.1 "$R_PORT" > /tmp/redis_"$R_PORT".tmp
REDIS_STAT_VALUE=$(grep ""$R_COMMAND":" /tmp/redis_"$R_PORT".tmp | cut -d ':' -f2)
echo $REDIS_STAT_VALUE
}

main(){
case $1 in
tcp_status)
tcp_status_fun $2;
;;
nginx_status)
nginx_status_fun $2 $3;
;;
memcached_status)
memcached_status_fun $2 $3;
;;
redis_status)
redis_status_fun $2 $3;
;;
*)
echo $"Usage: $0 {tcp_status key|memcached_status key|redis_status key|nginx_status key}"
esac
}

main $1 $2 $3

需要在自定义文件中添加

UserParameter=linux_status[*],/etc/zabbix/zabbix_agentd.d/zabbix_linux_plugin.sh "$1" "$2" "$3"