worker_processes  auto;
worker_cpu_affinity auto;

error_log  /var/log/nginx/error.log;
pid        /var/run/nginx.pid;

#daemon     off;

events {
    worker_connections  1024;
}

http {
#   rewrite_log on;

    include mime.types;
    default_type       application/json;
    access_log         /var/log/nginx/access.log;
    sendfile           on;
#   tcp_nopush         on;
    keepalive_timeout  3;
#   tcp_nodelay        on;
#   gzip               on;

    client_max_body_size 1m;

    upstream app {
        server app:3000;
    }

    server {
        listen 8080 default_server;
        server_name _;

        error_page 400 = @400;
        location @400 { return 400 '{"status":400,"message":"Bad request"}\n'; }

        error_page 401 = @401;
        location @401 { return 401 '{"status":401,"message":"Unauthorized"}\n'; }

        error_page 403 = @403;
        location @403 { return 403 '{"status":403,"message":"Forbidden"}\n'; }

        error_page 404 = @404;
        location @404 { return 404 '{"status":404,"message":"Resource not found"}\n'; }

        error_page 405 = @405;
        location @405 { return 405 '{"status":405,"message":"Method not allowed"}\n'; }

        error_page 408 = @408;
        location @408 { return 408 '{"status":408,"message":"Request timeout"}\n'; }

        error_page 413 = @413;
        location @413 { return 413 '{"status":413,"message":"Payload too large"}\n'; }

        error_page 414 = @414;
        location @414 { return 414 '{"status":414,"message":"Request URI too large"}\n'; }

        error_page 415 = @415;
        location @415 { return 415 '{"status":415,"message":"Unsupported media type"}\n'; }

        error_page 426 = @426;
        location @426 { return 426 '{"status":426,"message":"HTTP request was sent to HTTPS port"}\n'; }

        error_page 429 = @429;
        location @429 { return 429 '{"status":429,"message":"API rate limit exceeded"}\n'; }

        error_page 495 = @495;
        location @495 { return 495 '{"status":495,"message":"Client certificate authentication error"}\n'; }

        error_page 496 = @496;
        location @496 { return 496 '{"status":496,"message":"Client certificate not presented"}\n'; }

        error_page 497 = @497;
        location @497 { return 497 '{"status":497,"message":"HTTP request was sent to mutual TLS port"}\n'; }

        error_page 500 = @500;
        location @500 { return 500 '{"status":500,"message":"Server error"}\n'; }

        error_page 501 = @501;
        location @501 { return 501 '{"status":501,"message":"Not implemented"}\n'; }

        error_page 502 = @502;
        location @502 { return 502 '{"status":502,"message":"Bad gateway"}\n'; }

        location @api {
            default_type application/json;
            proxy_pass http://app;
        }

        location /api {
            default_type application/json;
            proxy_pass http://app;
        }

        location / {
            index index.html;
            root /var/www/html;
            try_files $uri $uri/ @api;
        }
    }
}