編譯安裝 nginx的http_stub_status_module監控其運作狀态

步驟：

1 編譯nginx,加上參數 --with-http_stub_status_module

以我自己的編譯選項為例：

#配置指令
  ./configure --prefix=/usr/local
    --user=nginx 
    --group=nginx
    --with-http_ssl_module
    --with-http_realip_module
    --http-client-body-temp-path=/usr/local/var/tmp/nginx/client 
    --http-proxy-temp-path=/usr/local/var/tmp/nginx/proxy 
    --http-fastcgi-temp-path=/usr/local/var/tmp/nginx/fcgi 
    --http-scgi-temp-path=/usr/local/var/tmp/nginx/scgi 
    --http-uwsgi-temp-path=/usr/local/var/tmp/nginx/uwsgi 
    --with-http_geoip_module 
    --with-http_stub_status_module           

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2 修改nginx配置檔案，添加監控狀态配置

在nginx.conf的server塊中添加如下代碼

location /nginx_status {
    # Turn on nginx stats
    stub_status on;
    # I do not need logs for stats
    access_log   off;
    # Security: Only allow access from 192.168.1.100 IP #
    #allow 192.168.1.100;
    # Send rest of the world to /dev/null #
    #deny all;
}           

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這段代碼是加在預設的server裡的，

假設預設server的配置為

listen       127.0.0.1:80;
server_name  127.0.0.1;           

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那麼通路nginx的狀态，就可以通過 curl 127.0.0.1/nginx_status通路了

傳回結果類似于：

Active connections: 1 
server accepts handled requests
 655 655 1985 
Reading: 0 Writing: 1 Waiting: 0            

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