NGINX config for a Jekyll site using SSL

nginx.conf

server {
  listen 80;
  server_name example.com www.example.com;
  return 301 https://$host$request_uri;
}

server {
  listen 443 ssl;

  server_name example.com www.example.com;

  #ssl_certificate
  #ssl_certificate_key

  root /var/www/example.com;
  index index.html index.htm;

  if (!-f "${request_filename}index.html") {
    rewrite ^/(.*)/$ /$1 permanent;
  }

  if ($request_uri ~* "/index.html") {
    rewrite (?i)^(.*)index\.html$ $1 permanent;
  }

  if ($request_uri ~* ".html") {
    rewrite (?i)^(.*)/(.*)\.html $1/$2 permanent;
  }

  error_page 404 /404.html;

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