对编译安装的Nginx使用nginx_vts_exporter

参考自：
https://blog.51cto.com/xujpxm/2080146
https://github.com/hnlq715/nginx-vts-exporter#environment-variables

在nginx编译时添加vts模块

下载解压

wget https://github.com/vozlt/nginx-module-vts/archive/v0.1.18.tar.gz

# nginx -V

将之前的编译参数完整复制一份，加上vts模块
重新编译 nginx-1.16.0

./configure \
--user=nginx --group=nginx --with-debug \
--prefix=/usr/local/nginx \
--sbin-path=/usr/local/sbin/nginx \
--conf-path=/etc/nginx/nginx.conf \
--error-log-path=/var/log/nginx/error.log \
--http-log-path=/var/log/nginx/access.log \
--pid-path=/var/run/nginx/nginx.pid \
--lock-path=/var/lock/nginx.lock \
--with-stream --with-http_sub_module \
--with-http_realip_module \
--with-http_stub_status_module \
--with-http_gzip_static_module \
--with-http_mp4_module  \
--with-pcre --with-http_ssl_module \
--with-stream_ssl_module \
--add-module=../nginx-module-vts-0.1.18

nginx修改http区块、server区块

http {
    ...
    #增加vhost过滤
    vhost_traffic_status_zone;
    vhost_traffic_status_filter_by_host on;

   #增加一个专用server 
    server {
        listen       80;
        server_name  localhost 127.0.0.1;
        location /status {
                vhost_traffic_status_display;
                vhost_traffic_status_display_format html;
                allow 127.0.0.1;
                deny all;
        }
   }
}

启动Nginx，检查结果

curl http://localhost/status/format/json

下载nginx-vts-exporter二进制包

wget https://github.com/hnlq715/nginx-vts-exporter/releases/download/v0.10.3/nginx-vts-exporter-0.10.3.linux-amd64.tar.gz
cd nginx-vts-exporter-0.10.3.linux-amd64
nohup ./nginx-vts-exporter -nginx.scrape_uri=http://localhost/status/format/json &

浏览器打开
http://x.x.x.x:9913/metrics

prometheus.yml

  - job_name: 'nginx-check'
    metrics_path: /metrics
    file_sd_configs:
    - files:
      - 'instances/ins_nginx.yaml'
      refresh_interval: 1m

instances/ins_nginx.yaml

- labels:
    env: "test"
  targets:
    - 127.0.0.1:9913

grafana dashboard模板参考
https://grafana.com/grafana/dashboards?search=Nginx