Munin does not show nginx stats

Introduction

Munin uses the nginx_status page to process Nginx data

Procedure

Confirm that the staus page does not work with the following command:

curl -I http://127.0.0.1/nginx_status
HTTP/1.1 404 Not Found
Server: nginx/1.21.1

In order to enable the nginx_status page, you need to create a new config file:

vi /etc/nginx/conf.d/status.conf

And add the following lines:

server {
       listen 127.0.0.1;
       server_name localhost;
       location /nginx_status {
               stub_status on;
               access_log   off;
               allow 127.0.0.1;
               deny all;
       }
 }

Then restart the Nginx service with the following script:

/scripts/restartsrv_nginx

The check again status page

curl -I http://127.0.0.1/nginx_status
HTTP/1.1 200 OK
Server: nginx/1.21.1

Now Munin should start to show data for Nginx status and requests, please wait few minutes to allow data to accumulate.