prometheus监控nginx

#(一)yum安装的nginx添加第三方vts模块

1. 查看nginx版本模块

2.下载一个同版本可编译的Nginx

cd /tools 
wget http://nginx.org/download/nginx-1.12.2.tar.gz 
tar xf nginx-1.12.2.tar.gz && cd nginx-1.12.2

3.备份原Nginx文件

\cp  /usr/sbin/nginx /usr/sbin/nginx.bak
cp -r /etc/nginx{,.bak}

4.克隆vts模块仓库

git clone git://github.com/vozlt/nginx-module-vts.git

5.添加nginx-module-vts模块，构建编译配置，完成后make

cd /tools/nginx-1.12.2
./configure --prefix=/usr/share/nginx  --add-module=./nginx-module-vts

如果有报错, 安装依赖

yum -y install libxml2 libxml2-dev libxslt-devel 
yum -y install gd-devel 
yum -y install perl-devel perl-ExtUtils-Embed 
yum -y install GeoIP GeoIP-devel GeoIP-data
yum -y install pcre-devel
yum -y install openssl openssl-devel 
yum -y install google-perftools  google-perftools-devel 

会在objs目录下生成新的nginx二进制文件

\cp objs/nginx /usr/sbin/nginx 

6.修改nginx配置文件

http {
        vhost_traffic_status_zone;
        server {
                listen       80;
                server_name  localhost;
                location /status {
                             vhost_traffic_status_display;
                             vhost_traffic_status_display_format html; 
                }
}
}

7.启动nginx，查看输出

# curl http://localhost/status/format/

#（2）Nginx-vts-exporter下载安装

1.下载nginx-vts-exporter

https://github.com/hnlq715/nginx-vts-exporter/releases
centos7 64位下载： nginx-vts-exporter-0.10.3.linux-amd64.tar.gz

2.解压启动

tar xf nginx-vts-exporter-0.10.3.linux-amd64.tar.gz
cd nginx-vts-exporter-0.10.3.linux-amd64
cp nginx-vts-exporter /sbin/ 
nohup nginx-vts-exporter -nginx.scrape_uri=http://localhost/status/format/json

3. consul添加服务

   curl -X PUT -d '{"id": "nginx","name": "nginx","address": "192.168.1.52","port": 9913,"tags": ["dev"],"checks": [{"http": "http://192.168.1.52:9913/","interval": "5s"}]}' http://localhost:8500/v1/agent/service/register

4.consul验证

6. prometheus验证

7. 配置grafana模板

   grafana 添加模板id 2949
   https://grafana.com/dashboards/2949

   

参考文档

https://github.com/hnlq715/nginx-vts-exporter#build-docker-image
https://github.com/hnlq715/nginx-vts-exporter/releases
https://it.baiked.com/nginx/2697.html
https://yq.aliyun.com/articles/573597
https://www.cnblogs.com/juanjuankaikai/p/9598976.html