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Nginx配置Prometheus监控
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nginx-vts-exporter

安装包下载，注意下载nginx版本需要和生产环境保持一致

wget https://github.com/vozlt/nginx-module-vts/archive/refs/tags/v0.2.2.tar.gz
wget https://github.com/hnlq715/nginx-vts-exporter/releases/download/v0.10.3/nginx-vts-exporter-0.10.3.linux-amd64.tar.gz
wget http://nginx.org/download/nginx-1.26.2.tar.gz

解压nginx-module-vts

tar xf nginx-module-vts-0.2.3.tar.gz -C /usr/local/src/

查看运行nginx编译参数

nginx -V 
./configure --prefix=/usr/share/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib64/nginx/modules --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --http-client-body-temp-path=/var/lib/nginx/tmp/client_body --http-fastcgi-temp-path=/var/lib/nginx/tmp/fastcgi --http-proxy-temp-path=/var/lib/nginx/tmp/proxy --http-scgi-temp-path=/var/lib/nginx/tmp/scgi --http-uwsgi-temp-path=/var/lib/nginx/tmp/uwsgi --pid-path=/run/nginx.pid --lock-path=/run/lock/subsys/nginx --user=nginx --group=nginx --with-file-aio --with-ipv6 --with-http_ssl_module --with-http_v2_module --with-http_realip_module --with-http_addition_module --with-http_xslt_module=dynamic --with-http_image_filter_module=dynamic --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_degradation_module --with-http_slice_module --with-http_perl_module=dynamic --with-http_auth_request_module --with-mail=dynamic --with-mail_ssl_module --with-pcre --with-pcre-jit --with-stream=dynamic --with-stream_ssl_module --with-google_perftools_module --with-debug --with-cc-opt='-O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/generic-hardened-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection' --with-ld-opt='-Wl,-z,relro -Wl,-z,now -specs=/usr/lib/rpm/generic-hardened-ld -Wl,-E'

创建nginx用户

useradd -r -M -s /usr/sbin/nologin nginx

安装编译环境

yum install pcre-devel openssl-devel libxml2-devel libxslt-devel gd-devel gperftools gperftools-devel

解压nginx源码

tar xf nginx-1.26.2.tar.gz

再原来编译参数基础上添加vts模块，进行编译

./configure --prefix=/usr/share/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib64/nginx/modules --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --http-client-body-temp-path=/var/lib/nginx/tmp/client_body --http-fastcgi-temp-path=/var/lib/nginx/tmp/fastcgi --http-proxy-temp-path=/var/lib/nginx/tmp/proxy --http-scgi-temp-path=/var/lib/nginx/tmp/scgi --http-uwsgi-temp-path=/var/lib/nginx/tmp/uwsgi --pid-path=/run/nginx.pid --lock-path=/run/lock/subsys/nginx --user=nginx --group=nginx --with-file-aio --with-ipv6 --with-http_ssl_module --with-http_v2_module --with-http_realip_module --with-http_addition_module --with-http_xslt_module=dynamic --with-http_image_filter_module=dynamic --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_degradation_module --with-http_slice_module --with-http_perl_module=dynamic --with-http_auth_request_module --with-mail=dynamic --with-mail_ssl_module --with-pcre --with-pcre-jit --with-stream=dynamic --with-stream_ssl_module --with-google_perftools_module --with-debug --with-cc-opt='-O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/generic-hardened-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection' --with-ld-opt='-Wl,-z,relro -Wl,-z,now -specs=/usr/lib/rpm/generic-hardened-ld -Wl,-E' --add-module=/usr/local/src/nginx-module-vts-0.2.2/
make

备份nginx配置文件

cd /usr/local/nginx/conf
cp nginx.conf nginx.conf.bak

nginx配置文件添加配置

#在nginx.conf http块添加如下配置
vhost_traffic_status_filter_by_host on;
vhost_traffic_status_zone;
server {
   listen 8089;
    location /status {
     vhost_traffic_status_display;
     vhost_traffic_status_display_format html;
}
}

将so文件替换

cd /usr/lib64/nginx/modules/
mkdir backup
mv ./* backup/
cp /root/nginx-1.26.2/objs/*.so .

替换nginx二进制文件，并启动nginx

#先备份二进制文件
cd /usr/local/nginx/sbin
cp nginx nginx.20241206
#停止nginx，不然新的二进制文件覆盖不了
systemctl stop nginx
#替换二进制文件
cp /root/nginx-1.20.2/nginx-1.20.2/objs/nginx .
#检查配置文件语法
./nginx -t
#启动Nginx
systemctl start nginx

部署exporter

tar -xf nginx-vts-exporter-0.10.3.linux-amd64.tar.gz
cp /opt/nginx-vts-exporter-0.10.3.linux-amd64/nginx-vts-exporter /usr/local/bin/
cat > /etc/systemd/system/nginx_vts_exporter.service << EOF
[Unit]
Description=nginx_exporter
After=network.target
[Service]
Type=simple
ExecStart=/usr/local/bin/nginx-vts-exporter -telemetry.address :9145 -nginx.scrape_uri=http://192.168.20.3:8089/status/format/json
Restart=on-failure
[Install]
WantedBy=multi-user.target
EOF
systemctl start nginx_vts_exporter
systemctl enable nginx_vts_exporter

测试插件

curl http://x.x.x.x:9145/metrics

配置Prometheus job

- job_name: nginx-exporter
  scrape_interval: 30s
  scrape_timeout: 30s
  static_configs:
    - targets:
      - 'x.x.x.x:9145'
      labels:
        instance: nginx-master
        group: "nginx-master"
    - targets:
      - 'x.x.x.x:9145'
      labels:
        instance: nginx-slave
        group: "nginx-slave"
  metrics_path: 'metrics' # nginx exporter默认的metrics路径 http://172.22.16.123:9145/metrics
  scheme: 'http'

prometheus-nginxlog-exporter

通过读取nginx日志文件，解析日志，生成监控指标，并提供http接口供Prometheus拉取。

安装

创建目录

mkdir -p /usr/local/nginxlog-exporter

下载安装包

wget https://github.com/martin-helmich/prometheus-nginxlog-exporter/releases/download/v1.11.0/prometheus-nginxlog-exporter_1.11.0_linux_amd64.tar.gz

安装服务

tar xf prometheus-nginxlog-exporter_1.11.0_linux_amd64.tar.gz
mv prometheus-nginxlog-exporter /usr/local/bin/

创建配置文件/usr/local/nginxlog-exporter/nginxlog_exporter.yml

cat > /usr/local/nginxlog-exporter/nginxlog_exporter.yml << 'EOF'
listen:
  port: 4040
  address: "0.0.0.0"

consul:
  enable: false

namespaces:
  - name: metis
    relabel_configs:
    - target_label: request_uri
      from: request
      split: 2
      separator: ' '  
    format: '$remote_addr - $remote_user [$time_local] "$request" $status $body_bytes_sent "$http_referer" "$http_user_agent" "$http_x_forwarded_for"'
    source:
      files:
        - /var/log/nginx/access.log
    labels:
      service: "metis"
      environment: "prod"
    histogram_buckets: [.005, .01, .025, .05, .1, .25, .5, 1, 2.5, 5, 10]
EOF

创建systemd服务

cat > /etc/systemd/system/prometheus-nginxlog-exporter.service << EOF
[Unit]
Description=NGINX metrics exporter for Prometheus
After=network-online.target

[Service]
ExecStart=/usr/local/bin/prometheus-nginxlog-exporter -config-file /usr/local/nginxlog-exporter/nginxlog_exporter.yml
Restart=always
ProtectSystem=full
CapabilityBoundingSet=

[Install]
WantedBy=multi-user.target
EOF

启动服务

systemctl start prometheus-nginxlog-exporter
systemctl enable prometheus-nginxlog-exporter

测试

curl http://localhost:4040/metrics

配置Prometheus job

- job_name: nginxlog-exporter
  static_configs:
    - targets:
      - 'x.x.x.x:4040'
      labels:
        instance: nginx-master
        group: "nginx-master"
    - targets:
      - 'x.x.x.x:4040'
      labels:
        instance: nginx-slave
        group: "nginx-slave"
  metrics_path: 'metrics' # nginx exporter默认的metrics路径 http://172.22.16.123:9145/metrics
  scheme: 'http'
文章作者: 慕容峻才
文章链接: https://www.acaiblog.top/Nginx配置Prometheus监控/
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