fab-manager/config/nginx_puma.conf

upstream puma {
  server unix:/usr/src/app/tmp/sockets/fablab.sock fail_timeout=0;
}

server {
  listen 80;
  server_name capsciences.fab-manager.com;
  root /usr/src/app/public;
  location ^~ /assets/ {
    gzip_static on;
    expires max;
    add_header Cache-Control public;
  }

  try_files $uri/index.html $uri @puma;
  location @puma {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect off;
    proxy_pass http://puma;
  }

  client_max_body_size 4G;
  keepalive_timeout 10;

  error_page 500 502 503 504 /500.html;
  error_page 503 @503;

  # Return a 503 error if the maintenance page exists.
  if (-f /usr/src/app/public/maintenance.html) {
    return 503;
  }

  location @503 {
    # Serve static assets if found.
    if (-f $request_filename) {
      break;
    }

    # Set root to the shared directory.
    root /usr/src/app/public;
    rewrite ^(.*)$ /maintenance.html break;
  }
}