server {
        listen 80;
        server_name doc.ruby-lang.org;
        location /.well-known/acme-challenge {
            default_type "text/plain";
            root /var/www/html;
        }
        location / {
            return 301 https://docs.ruby-lang.org$request_uri;
        }
    }

    server {
        listen 80;
        server_name docs.ruby-lang.org;
        location /.well-known/acme-challenge {
            default_type "text/plain";
            root /var/www/html;
        }
        location / {
            return 301 https://docs.ruby-lang.org$request_uri;
        }
    }

    # for certbot acme challenge
    server {
        listen 80;
        server_name docs-origin.ruby-lang.org;
        location / {
            root /var/www/html;
        }
    }

    server {
        listen 443 ssl http2;
        listen [::]:443 ssl http2;

        server_name docs.ruby-lang.org docs-origin.ruby-lang.org;

        ssl on;
        ssl_certificate /etc/letsencrypt/live/docs-origin.ruby-lang.org/fullchain.pem;
        ssl_certificate_key /etc/letsencrypt/live/docs-origin.ruby-lang.org/privkey.pem;
        ssl_session_timeout 1d;
        ssl_session_cache shared:MozSSL:10m;  # about 40000 sessions
        ssl_session_tickets off;

        ssl_dhparam /etc/nginx/dhparam.pem;

        # intermediate configuration
        ssl_protocols TLSv1.2;
        ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;
        ssl_prefer_server_ciphers off;

        # OCSP stapling
        ssl_stapling on;
        ssl_stapling_verify on;

        # verify chain of trust of OCSP response using Root CA and Intermediate certs
        ssl_trusted_certificate /etc/letsencrypt/live/docs-origin.ruby-lang.org/chain.pem;

        resolver 8.8.8.8;

        proxy_set_header X-Forwarded-Host $host;
        proxy_set_header X-Forwarded-Proto https;
        proxy_set_header X-Forwarded-Port 443;

        location / {
            root   /var/www/docs.ruby-lang.org/current/public;
            index  index.html;

            add_header Cache-Control "public, max-age=43200, s-maxage=172800, stale-while-revalidate=86400, stale-if-error=604800";
            add_header Surrogate-Key "index";

            location ~ ^/en/trunk(.*) {
              return 301 https://docs.ruby-lang.org/en/master$1;
            }

            location ~ ^/(en|ja)/2\.8\.0(.*) {
              return 302 https://docs.ruby-lang.org/$1/master$2;
            }

            location ~ ^/(en|ja)/(.+?)/ {
              add_header Cache-Control "public, max-age=43200, s-maxage=172800, stale-while-revalidate=86400, stale-if-error=604800";
              add_header Surrogate-Key "docs $1 $2 $1/$2";
            }
        }

        location /ja/search {
            proxy_pass http://localhost:9292;
        }

        location ~ /ja/search/(css|javascripts) {
          rewrite ^/ja/search/(.+)$ /$1 break;
          root /var/rubydoc/rurema-search/current/public;
          add_header Cache-Control "public, max-age=43200, s-maxage=172800, stale-while-revalidate=86400, stale-if-error=604800";
          add_header Surrogate-Key "rurema-search-assets";
        }

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

    server {
        listen       9292;
        server_name  localhost;
        root /var/rubydoc/rurema-search/current/public;
        passenger_enabled on;

        # add_header Cache-Control "private";
        add_header Cache-Control "public, max-age=3600, s-maxage=172800, stale-while-revalidate=86400, stale-if-error=60";
        add_header Surrogate-Key "rurema-search-app";
    }

    server {
        listen 443 ssl http2;
        listen [::]:443 ssl http2;

        server_name doc.ruby-lang.org;

        ssl on;
        ssl_certificate /etc/letsencrypt/live/doc.ruby-lang.org/fullchain.pem;
        ssl_certificate_key /etc/letsencrypt/live/doc.ruby-lang.org/privkey.pem;
        ssl_session_timeout 1d;
        ssl_session_cache shared:MozSSL:10m;  # about 40000 sessions
        ssl_session_tickets off;

        ssl_dhparam /etc/nginx/dhparam.pem;

        # intermediate configuration
        ssl_protocols TLSv1.2;
        ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;
        ssl_prefer_server_ciphers off;

        # OCSP stapling
        ssl_stapling on;
        ssl_stapling_verify on;

        # verify chain of trust of OCSP response using Root CA and Intermediate certs
        ssl_trusted_certificate /etc/letsencrypt/live/doc.ruby-lang.org/chain.pem;

        resolver 8.8.8.8;

        return 301 https://docs.ruby-lang.org$request_uri;
    }