worker_processes 4;

events {
    worker_connections 1024;
}


http {

    upstream auth_server {
        server auth_server:80;
    }

    upstream application {
        server application:3000;
    }

    server {
        listen 80;
        include /etc/nginx/mime.types;

        error_page 401 /login;

        location = /auth {
            internal;

            proxy_pass http://auth_server;

            proxy_pass_request_body off;
            proxy_set_header Content-Length "";
            proxy_set_header X-Original-URI $request_uri;
            proxy_set_header X-Original-Remote-Addr $remote_addr;
            proxy_set_header X-Original-Host $host;
        }

        location ~ ^/(login|signin|logout|get-user) {
            proxy_pass http://auth_server;
        }


        location / {
            auth_request /auth;
            auth_request_set $auth_cookie $upstream_http_set_cookie;
            add_header Set-Cookie $auth_cookie;
            proxy_pass http://application/;
        }

    }
}