server {
  # allow access from localhost
  listen 80 reuseport backlog=1024;
  listen 443 ssl http2 backlog=1024;
  server_name blog.kazu634.com;

  ssl_certificate /etc/letsencrypt/live/blog.kazu634.com/fullchain.pem;
  ssl_certificate_key /etc/letsencrypt/live/blog.kazu634.com/privkey.pem;
  ssl_dhparam /etc/letsencrypt/live/blog.kazu634.com/dhparams_4096.pem;

  ssl_session_cache   shared:SSL:3m;
  ssl_buffer_size     4k;
  ssl_session_timeout 10m;

  ssl_session_tickets on;
  ssl_session_ticket_key /etc/letsencrypt/live/blog.kazu634.com/ticket.key;

  ssl_protocols TLSv1.2 TLSv1.1 TLSv1;
  ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:AES256-GCM-SHA384:AES256-SHA256:AES256-SHA:DES-CBC3-SHA;
  ssl_prefer_server_ciphers on;

  ssl_stapling on;
  ssl_stapling_verify on;
  resolver 8.8.4.4 8.8.8.8 valid=300s;
  resolver_timeout 10s;

  # Enable HSTS (HTTP Strict Transport Security)
  add_header Strict-Transport-Security "max-age=31536000; includeSubdomains; preload";

  root /var/www/blog;
  index index.html index.htm;

  access_log   /var/log/nginx/blog.access.log   ltsv;
  error_log    /var/log/nginx/blog.error.log;

  location / {
    gzip on;
    gunzip on;
    gzip_vary on;

    # http2 server push:
    http2_push_preload on;

    http2_push /css/sanitize.css;
    http2_push /css/responsive.css;
    http2_push /css/highlight_monokai.css;
    http2_push /css/theme.css;
    http2_push /css/custom.css;
    http2_push /images/profile.png;
    http2_push /js/highlight.pack.js;

    if (-e "/tmp/maintenance") {
      return 503;
    }

    location /feed {
      return 301 http://blog.kazu634.com/index.xml;
    }

    location /wp-content {
      return 404;
    }

    location ~* \.css {
      gzip_static always;

      expires max;
    }

    location ~* \.js {
      gzip_static always;

      expires max;
    }

    location /images {
      gzip_static always;

      expires max;
    }

    location = /favicon.ico {
      access_log off;
      empty_gif;
      expires max;
    }

    try_files $uri $uri/ /index.html;
  }
}