zabbix监控tcp连接数和nginx状态

骑猪看日落 2022-03-19 21:14 293阅读 0赞

**一、前提条件**  
安装好[zabbix-server][]和[zabbix-agent][]

**二、在被监控linux主机的/etc/zabbix/zabbix\_agentd.d/目录下创建配置文件linux\_status.conf**

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

**三、新建zabbix\_linux\_plugin.sh脚本**  
mkdir -p /etc/zabbix/scripts  
vim /etc/zabbix/scripts/zabbix\_linux\_plugin.sh

###################start###################
    #!/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
    ###################end###################

给脚本添加权限:

chmod +x zabbix_linux_plugin.sh

**四、给nginx配置文件加上一个location**

location /nginx_status {
                stub_status on;
                access_log off;
                allow 127.0.0.1;
                deny all;
            }

使配置生效

/usr/local/nginx/sbin/nginx -t
    /usr/local/nginx/sbin/nginx -s reload

**五、重启zabbix-agent服务**  
systemctl restart zabbix-agent.service

**六、在zabbix的web页面导入nginx和tcp模板**  
nginx监控模板下载地址：[https://github.com/wangchaoforever/peizhiwenjian/blob/master/zabbix/zbx\_nginx\_templates.xml][https_github.com_wangchaoforever_peizhiwenjian_blob_master_zabbix_zbx_nginx_templates.xml]  
tcp状态监控模板下载地址：[https://github.com/wangchaoforever/peizhiwenjian/blob/master/zabbix/TCP\_export\_templates.xml][https_github.com_wangchaoforever_peizhiwenjian_blob_master_zabbix_TCP_export_templates.xml]

**七、修改nginx模板端口**  
模板中默认nginx端口为8080，根据实际需求进行更改

**八、在相应的主机中加入nginx模板和tcp模板**  
在被监控主机中添加nginx或者tcp的模板之后，就可以进行监控了。

[zabbix-server]: https://blog.csdn.net/wc1695040842/article/details/86772202
[zabbix-agent]: https://blog.csdn.net/wc1695040842/article/details/86811071
[https_github.com_wangchaoforever_peizhiwenjian_blob_master_zabbix_zbx_nginx_templates.xml]: https://github.com/wangchaoforever/peizhiwenjian/blob/master/zabbix/zbx_nginx_templates.xml
[https_github.com_wangchaoforever_peizhiwenjian_blob_master_zabbix_TCP_export_templates.xml]: https://github.com/wangchaoforever/peizhiwenjian/blob/master/zabbix/TCP_export_templates.xml