server {
    listen 80 default_server;
    listen [::]:80 default_server ipv6only=on;

    listen 443 http2 ssl;
    listen [::]:443 http2 ipv6only=on ssl;

    ssl_certificate         /etc/letsencrypt/live/tusd.tusdemo.net/fullchain.pem;
    ssl_certificate_key     /etc/letsencrypt/live/tusd.tusdemo.net/privkey.pem;
    ssl_trusted_certificate /etc/letsencrypt/live/tusd.tusdemo.net/fullchain.pem;

    # Load custom parameters for Diffie Hellman key exchange to avoid the usage
    # of common primes
    ssl_dhparam /etc/nginx/dhparams.pem;

    # Restrict supported ciphers to prevent certain browsers from refusing to
    # connect because we are offering blacklisted ciphers. This configuration has
    # been generated by Mozilla's SSL Configuration Generator on the
    # intermediate profile and can be accessed at:
    # https://mozilla.github.io/server-side-tls/ssl-config-generator/?server=nginx-1.10.1&openssl=1.0.1e&hsts=no&profile=intermediate
    # More information about blacklisted ciphers can be found at:
    # http://security.stackexchange.com/questions/126775/understanding-blacklisted-ciphers-for-http2
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
    ssl_ciphers 'ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS';
    ssl_prefer_server_ciphers on;

    # Enable OCSP stapling which allows clients to verify that our certificate
    # is not revoked without contacting the Certificate Authority by appending a
    # CA-signed promise, that it's still valid, to the TLS handshake response.
    ssl_stapling on;
    ssl_stapling_verify on;

    # Enable SSL session cache to reduce overhead of TLS handshake. Allow nginx
    # workers to use 5MB of memory for caching but disable session tickets as
    # there is currently no easy way to rotate the ticket key which is not in
    # sync with the ideals of Perfect Forward Secrecy.
    ssl_session_timeout 1d;
    ssl_session_cache shared:SSL:5m;
    ssl_session_tickets off;

    server_name tusd.tusdemo.net;

    # certbot will place the files required for the HTTP challenge in the
    # webroot under the .well-known/acme-challenge directory. Therefore we must
    # make this path publicly accessible.
    location /.well-known {
            root /mnt/nginx-www/;
    }

    location / {
        # Forward incoming requests to local tusd instance
        proxy_pass http://localhost:8080;

        # Disable request and response buffering
        proxy_request_buffering  off;
        proxy_buffering          off;
        proxy_http_version       1.1;

        # Add X-Forwarded-* headers
        proxy_set_header X-Forwarded-Host $host;
        proxy_set_header X-Forwarded-Proto $scheme;

        proxy_set_header         Upgrade $http_upgrade;
        proxy_set_header         Connection "upgrade";
        client_max_body_size     0;
    }
}