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multiple location blocks in nginx and proxy pass

I am trying to run 2 applications behind an NGINX server.

one is listening on 3000 (grafana) and one is listening on 9090 (prometheus)

My current server block nginx.conf looks like this:

server {
  listen 80;
  root /usr/share/nginx/html;
  index index.html index.htm;

  location / {
   proxy_pass http://localhost:3000/;
  }

location /prometheus{
   proxy_pass http://localhost:9090/;
  }

}

Now for Grafana, this works perfectly and everything works in the dashboard.
But when typing Domain/prometheus it still redirects me to grafana instead of Prometheus.

Do I need todo something specific to have it working in this setup that everything besides /prometheus is redirected to grafana?

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2

Answers


  1. Chosen as BEST ANSWER
    0

    So I solved it now by doing this:

    server {
  listen 80;
  root /usr/share/nginx/html;
  index index.html index.htm;
    
location /prometheus {
   proxy_pass http://localhost:9090/prometheus;
  }

   
location / {
   proxy_pass http://localhost:3000/;
  }


}

  2. 0

    By default, http://localhost:9090 will be redirected to http://localhost:9090/graph, so the request is being redirected as below:

    # the origin request
http://Domain/prometheus

# the request redirect by nginx
http://localhost:9090/

# the request redirect by prometheus
http://Domain/graph

# the request redirect by nginx again
http://localhost:3000/graph

    You can check this by using F12 in Chrome.

    To fix this, I recommend you separate the domain into two domains:

    server {
  listen 80;
  server_name Domain-Grafana; # Domain for Grafana
  root /usr/share/nginx/html;
  index index.html index.htm;

  location / {
   proxy_pass http://localhost:3000/;
  }
}

server {
  listen 80;
  server_name Domain-Prometheus; # Domain for Prometheus
  root /usr/share/nginx/html;
  index index.html index.htm;

  location / {
   proxy_pass http://localhost:9090/;
  }
}
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