nginx_sites_available

# based on https://github.com/Strider-CD/strider/issues/860

server {
    # HTTP configuration
    # This is only used to redirect HTTP requests to HTTPS.
    listen 80;
    # The name this server responds to.
    server_name ci.linkurio.us;
    return 301 https://$server_name$request_uri;
}

server {
    # Basic configuration
    # Our server should respond to requests on any IP address on port 443; the default HTTPS port.
    listen 443;
    # The name this server responds to.
    server_name ci.linkurio.us;
    # Don't send the nginx version number.
    server_tokens off;

    # Don't allow the website to be embedded in an iframe (unless it's from the same origin).
    # See: https://developer.mozilla.org/en-US/docs/HTTP/X-Frame-Options
    add_header X-Frame-Options SAMEORIGIN;
    # Disable MIME-type sniffing.
    # See: https://www.owasp.org/index.php/List_of_useful_HTTP_headers
    add_header X-Content-Type-Options nosniff;
    # Enable XSS protection.
    # See: https://www.owasp.org/index.php/List_of_useful_HTTP_headers
    add_header X-XSS-Protection "1; mode=block";
    # Prevent SSL stripping.
    # See: https://en.wikipedia.org/wiki/Moxie_Marlinspike#SSL_stripping
    add_header Strict-Transport-Security "max-age=31536000; includeSubdomains;";

    # SSL configuration
    # Enable SSL.
    ssl on;
    # Allow only TLS, disable the old SSL protocols.
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
    # The SSL certificate this server should use.
    ssl_certificate /etc/letsencrypt/live/ci.linkurio.us/fullchain.pem;
    # The private key this server should use.
    ssl_certificate_key /etc/letsencrypt/live/ci.linkurio.us/privkey.pem;

    # SSL session parameters may be reused by the client for the given time.
    ssl_session_timeout 5m;
    # Store the SSL session parameters in a shared, 10 MB cache.
    ssl_session_cache shared:SSL:10m;

    # Set the supports SSL cipher suites. Allow only strong suites.
    ssl_ciphers "EECDH+ECDSA+AESGCM EECDH+aRSA+AESGCM EECDH+ECDSA+SHA384 EECDH+ECDSA+SHA256 EECDH+aRSA+SHA384 EECDH+aRSA+SHA256 EECDH+aRSA+RC4 EECDH EDH+aRSA RC4 !aNULL !eNULL !LOW !3DES !MD5 !EXP !PSK !SRP !DSS !RC4";
    # Prefer server cipher suites over the ones the client requests.
    # This makes sure the client can't use weak cipher suites.
    ssl_prefer_server_ciphers on;

    # Enable SSL stapling.
    # See https://blog.mozilla.org/security/2013/07/29/ocsp-stapling-in-firefox/
    ssl_stapling on;
    resolver 8.8.8.8;

    # Enable Public Key Pinning. This prevents MITM attack by giving the client additional information about our SSL certificate.
    # See: https://developer.mozilla.org/en-US/docs/Web/Security/Public_Key_Pinning
    # Requires an additional, backup certificate. Disable for now.
    # add_header Public-Key-Pins 'pin-sha256="gS7k9UlBgmDZ6+T45UDzoohPX9PEkspSZ1eQBwlABNM="; max-age=5184000; includeSubDomains';

    # Logging configuration
    access_log /var/log/nginx/ci.linkurio.us.access.log;

    # Set a base configuration for all requests to this virtual server.
    location / {
        # Set this server up as a reverse-proxy for the given address.
        # We configure our reverse-proxy to always connect over plain HTTP on a specific port.
        proxy_pass http://localhost:8081;
        # Rewrite Location and Refresh HTTP headers, so that the client sees the address they requested.
        proxy_redirect http://localhost:8081 https://ci.linkurio.us;

        # Our server should set the Host HTTP header to the name of this virtual server if the header is not present.
        # In practise, the value of the header should always be the name of the virtual server, because, otherwise
        # our server configuration wouldn't be hit at all.
        proxy_set_header Host $host;
        # Set the X-Real-IP HTTP header to the address of the client.
        proxy_set_header X-Real-IP $remote_addr;
        # Set the X-Forwarded-For HTTP header to contain the value set by the client, with the address of the client
        # appended to it.
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        # Set the X-Forwarded-Proto HTTP header to contain "http" or "https", depending on how the client contacted
        # our proxy. In practise, it should always be "https".
        proxy_set_header X-Forwarded-Proto $scheme;

        proxy_read_timeout 90;
    }

    # Socket.io will send requests to the location configured below. It requires some special configuration for
    # websockets to perform properly.
    location /socket.io/ {
        # Requests to this location should be proxied to the address given below.
        # This directive may actually be redundant, given the configuration for the root above.
        proxy_pass http://localhost:8081;
        # Because websockets use keepalive, we need to make sure HTTP version 1.1 is used.
        proxy_http_version 1.1;
        # To allow websocket proxying, we need to forward the Upgrade and Connection HTTP headers.
        # See http://nginx.org/en/docs/http/websocket.html for more details.
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }
}