Prometheus 监控整合 Nginx Metrics

查看nginx编译安装时安装了哪些模块

[root@nginx1 sbin]# ./nginx -V
nginx version: nginx/1.12.2
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-16) (GCC) 
built with OpenSSL 1.0.2k-fips  26 Jan 2017
TLS SNI support enabled
configure arguments: --prefix=/usr/local/nginx --with-http_ssl_module

[root@nginx1 nginx]# ./configure --prefix=/usr/local/nginx --with-http_ssl_module  --add-module=/root/mapr/nginx-module-vts

make编译 不要make install， 不然会覆盖

[root@nginx1 nginx]# cp /usr/local/nginx/sbin/nginx /usr/local/nginx/sbin/nginx.bak20180330
[root@nginx1 nginx]# cp ./objs/nginx /usr/local/nginx/sbin/

修改Nginx配置

http {
    ...
    vhost_traffic_status_zone;
    #vhost_traffic_status_filter_by_host on;
    ...
    server {
        ...   
        location /status {
               vhost_traffic_status_display;
               vhost_traffic_status_display_format html;
        }
}

验证nginx-module-vts模块

访问http://IP/status，出现数据页面

安装nginx-vts-exporter

下载解压 exporter

chmod +x /usr/local/prometheus/nginx-vts-exporter/bin/nginx-vts-exporter 

启动exporter

./nginx-vts-exporter -nginx.scrape_uri=http://localhost/status/format/json 

修改prometheus.yml，加入下面的监控目标：

nginx-vts-exporter默认的抓取地址为http://IP:9913/metrics