Nginx官网有介绍各类监控方案，之前咱们经常使用stub_status和Log日志来实现Nginx监控。本文主要介绍基于Prometheus的2种监控方案nginx-lua-prometheus和nginx-vts-exporter，在真实的生产环境中你可能须要研究和选择哪一种方法才是适合你的，F5收购Nginx后的将来让咱们一块儿拭目以待。nginx
Prometheus 监控 Nginx
2019年03月25日 - 初稿git
阅读原文 - https://wsgzao.github.io/post...github
扩展阅读redis
Monitoring NGINX - https://www.nginx.com/blog/mo...vim
官网介绍的监控方案 - https://www.nginx.com/blog/mo...bash
Prometheus 集成的 HTTP exporter 方案 - https://prometheus.io/docs/in...curl
聊聊 Nginx 的监控 - https://zhuanlan.zhihu.com/p/...tcp
使用rpmbuild制做Nginx的RPM包 - https://wsgzao.github.io/post...post
Nginx 须要添加 Lua 扩展
https://github.com/knyar/ngin...测试
# 下载redis_exporter
https://github.com/knyar/nginx-lua-prometheus/releases
wget https://github.com/knyar/nginx-lua-prometheus/archive/0.20181120.tar.gz
tar xf 0.20181120.tar.gz
cd nginx-lua-prometheus-0.20181120
# 建立prometheus.lua目录
mkdir -p /etc/nginx/lua/
cp prometheus.lua /etc/nginx/lua/
# 编辑nginx配置文件修改，注意修改lua_package_path "/etc/nginx/lua/prometheus.lua";
vim /etc/nginx/nginx.conf
lua_shared_dict prometheus_metrics 10M;
lua_package_path "/etc/nginx/lua/prometheus.lua";
init_by_lua '
prometheus = require("prometheus").init("prometheus_metrics")
metric_requests = prometheus:counter(
"nginx_http_requests_total", "Number of HTTP requests", {"host", "status"})
metric_latency = prometheus:histogram(
"nginx_http_request_duration_seconds", "HTTP request latency", {"host"})
metric_connections = prometheus:gauge(
"nginx_http_connections", "Number of HTTP connections", {"state"})
';
log_by_lua '
metric_requests:inc(1, {ngx.var.server_name, ngx.var.status})
metric_latency:observe(tonumber(ngx.var.request_time), {ngx.var.server_name})
';
# 建立nginx-lua-prometheus
vim /etc/nginx/sites-available/nginx-lua-prometheus
server {
listen 9145;
location /metrics {
content_by_lua '
metric_connections:set(ngx.var.connections_reading, {"reading"})
metric_connections:set(ngx.var.connections_waiting, {"waiting"})
metric_connections:set(ngx.var.connections_writing, {"writing"})
prometheus:collect()
';
}
}
# 建立软连接
cd /etc/nginx/sites-enabled/
ln -s ../sites-available/prometheus
# 测试Nginx语法并reload测试metrics
nginx -t
nginx -s reload
curl http://127.0.0.1:9145/metrics
# iptables rule for Prometheus Nginx
-A INPUT -s xxx -p tcp --dport 9145 -j ACCEPT
https://github.com/hnlq715/ng...
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