监控Nginx主要用到以下三个模块:
1、nginx-module-vts:Nginx virtual host traffic status module,Nginx的监控模块,能够提供JSON格式的数据产出。
2、nginx-vts-exporter:Simple server that scrapes Nginx vts stats and exports them via HTTP for Prometheus consumption。主要用于收集Nginx的监控数据,并给Prometheus提供监控接口,默认端口号9913。
3、Prometheus:监控Nginx-vts-exporter提供的Nginx数据,并存储在时序数据库中,可以使用PromQL对时序数据进行查询和聚合。
unzip nginx-module-vts-master.zip 解压
yum -y install gcc gcc-c++ pcre pcre-devel zlib zlib-devel openssl openssl-devel
make && make install
优化管理
ln -s /usr/local/nginx/sbin/nginx /usr/local/sbin
检查开启的模块
nginx -v 检查 nginx版本 nginx -V
watch -n 1 nginx 观察nginx状态
systemctl stop firewalld
systemctl disable firewalld
setenforce 0
进去后再http{ } 中添加如下内容
vhost_traffic_status_zone; #流量状态监控 log_format main "{ "@timestamp": "$time_local", " ""@fields": { " ""uri":"$request_uri"," ""url":"$uri"," ""upstream_addr":"$upstream_addr"," ""remote_addr": "$remote_addr", " ""remote_user": "$remote_user", " ""body_bytes_sent": "$body_bytes_sent", " ""host":"$host"," ""server_addr":"$server_addr"," ""request_time": "$request_time", " ""request_time":"$request_time"," ""status":"$status"," ""request": "$request", " ""request_method": "$request_method", " ""size":$body_bytes_sent," ""upstream_time":"$upstream_response_time"" ""http_referrer": "$http_referer", " ""body_bytes_sent":"$body_bytes_sent", " ""http_x_forwarded_for": "$http_x_forwarded_for", " ""http_user_agent": "$http_user_agent" } }";
在server中80端口添加
location /status {<!--{C}%3C!%2D%2D%20%2D%2D%3E--> vhost_traffic_status_display; vhost_traffic_status_display_format html; }
在虚拟机中测试 192.168.100.10/status
监控列表各项信息
Server main 主服务器
**Host:**主机名
**Version:**版本号
**Uptime:**服务器运行时间
Connections active:当前客户端的连接数 reading:读取客户端连接的总数 writing:写入客户端连接的总数
Requsts accepted:接收客户端的连接总数 handled:已处理客户端的连接总数 Total:请求总数 Req/s:每秒请求的数量
Shared memory:共享内存 name:配置中指定的共享内存名称 maxSize:配置中指定的共享内存的最大限制 usedSize:共享内存的当前大小 usedNode:共享内存中当前使用的节点数
Server zones 服务器区域
zone:当前区域
Requests Total:请求总数 Req/s:每秒请求数 time:时间
Responses:状态码数量 1xx、2xx、3xx、4xx、5xx:表示响应不同状态码数量 Total:响应状态码的总数
Traffic表示流量 Sent:发送的流量 Rcvd:接收的流量 Sent/s:每秒发送的流量 Rcvd/s:每秒接收的流量
Cache表示缓存 Miss:未命中的缓存数 Bypass:避开的缓存数 Expirde:过期的缓存数 Stale:生效的缓存数 Updating:缓存更新的次数 Revalidated:重新验证的缓存书 Hit:缓存命中数 Scarce:未达缓存要求的请求次数Total:总数
#!/bin/bash echo "提前准备好安装包如:nginx-1.15.9.tar.gz nginx-module-vts-master.zip" ##关闭防火墙及核心防护 systemctl stop firewalld systemctl disable firewalld setenforce 0 #删除原有的nginx rm -rf /var/run/yum.pid ##安装依赖包 yum -y install gcc gcc-c++ pcre-devel zlib-devel make pcre zlib openssl openssl-devel #解包 tar zxvf nginx-1.15.9.tar.gz unzip nginx-module-vts-master.zip #创建运行用户、组 useradd -M -s /sbin/nologin nginx ##编译 cd /opt/nginx-1.15.9/ ./configure \ --prefix=/usr/local/nginx \ --user=nginx \ --group=nginx \ --add-module=/usr/local/nginx-module-vts-master/ #vts模块 #--with-http_stub_status_module 统计模块 #安装 make && make install #优化路径 ln -s /usr/local/nginx/sbin/* /usr/local/sbin/ #查看nginx安装信息 nginx -V #把nginx的加入到systemctl管理中 cat<<EOF >/usr/lib/systemd/system/nginx.service [Unit] Description=nginx After=network.target [Service] Type=forking PIDFile =/usr/local/nginx/logs/nginx.pid ExecStart=/usr/local/nginx/sbin/nginx ExecrReload=/bin/kill -s HUP $MAINPID ExecrStop=/bin/kill -s QUIT $MAINPID PrivateTmp=true [Install] WantedBy=multi-user.target EOF #给权限 chmod 754 /lib/systemd/system/nginx.service #备份nginx配置文件 cp /usr/local/nginx/conf/nginx.conf /usr/local/nginx/conf/nginx.conf.bak #修改nginx的配置文件 sed -i "21i vhost_traffic_status_zone; #流量状态监控" /usr/local/nginx/conf/nginx.conf sed -i "/#log_format main/i log_format main "{ "@timestamp": "$time_local", " ""@fields": { " ""uri":"$request_uri"," ""url":"$uri"," ""upstream_addr":"$upstream_addr"," ""remote_addr": "$remote_addr", " ""remote_user": "$remote_user", " ""body_bytes_sent": "$body_bytes_sent", " ""host":"$host"," ""server_addr":"$server_addr"," ""request_time": "$request_time", " ""request_time":"$request_time"," ""status":"$status"," ""request": "$request", " ""request_method": "$request_method", " ""size":$body_bytes_sent," ""upstream_time":"$upstream_response_time"" ""http_referrer": "$http_referer", " ""body_bytes_sent":"$body_bytes_sent", " ""http_x_forwarded_for": "$http_x_forwarded_for", " ""http_user_agent": "$http_user_agent" } }";" /usr/local/nginx/conf/nginx.conf sed -i "/server_name localhost;/a location /status { vhost_traffic_status_display; vhost_traffic_status_display_format html; }" /usr/local/nginx/conf/nginx.conf #重启nginx systemctl restart nginx &> /dev/null #测试 本机ip/status
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