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

  location = /healthz {
    access_log off;
    add_header Content-Type text/plain;
    return 200 'ok';
  }

  location = /robots.txt {
    add_header Cache-Control "public, max-age=300";
    try_files /robots.txt =404;
  }

  location = /sitemap.xml {
    default_type application/xml;
    add_header Cache-Control "public, max-age=300";
    try_files /sitemap.xml =404;
  }

  location ~ ^/(docs|contribute|community)/?$ {
    try_files $uri $uri/ /index.html;
  }

  error_page 404 =404 /404.html;

  location = /404.html {
    internal;
  }

  location / {
    try_files $uri $uri/ =404;
  }
}