server {
  listen 80;
  server_name localhost;

  location / {
    try_files $uri $uri/ /index.html;
    root /app;
    index index.html;

  }

  error_page 500 502 503 504 /50x.html;
  location = /50x.html {
    root /usr/share/nginx/html;
  }

}
