Add nginx reverse-proxy example

deploy/nginx.conf.example

@@ -0,0 +1,55 @@
+# Newbury Nights — nginx reverse proxy example
+#
+# Camera (getUserMedia) and DeviceOrientation require a secure context,
+# so the site MUST be served over HTTPS. nginx terminates TLS here and
+# forwards plain HTTP to the Node app on 127.0.0.1:3000.
+#
+# Adjust server_name, certificate paths, and the upstream port to taste.
+
+upstream newbury_nights {
+    server 127.0.0.1:3000;
+    keepalive 32;
+}
+
+# Redirect HTTP -> HTTPS
+server {
+    listen 80;
+    listen [::]:80;
+    server_name newbury.example.com;
+    return 301 https://$host$request_uri;
+}
+
+server {
+    listen 443 ssl http2;
+    listen [::]:443 ssl http2;
+    server_name newbury.example.com;
+
+    # --- TLS (point these at your real certs, e.g. from certbot) ---
+    ssl_certificate     /etc/letsencrypt/live/newbury.example.com/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/newbury.example.com/privkey.pem;
+    ssl_protocols TLSv1.2 TLSv1.3;
+    ssl_prefer_server_ciphers on;
+
+    # Allow uploaded ghost GIFs/images up to the app's 8MB limit (+ headroom).
+    client_max_body_size 10m;
+
+    # Let the Node app see it's behind TLS (so secure cookies / trust proxy work).
+    proxy_set_header Host              $host;
+    proxy_set_header X-Real-IP         $remote_addr;
+    proxy_set_header X-Forwarded-For   $proxy_add_x_forwarded_for;
+    proxy_set_header X-Forwarded-Proto $scheme;
+    proxy_http_version 1.1;
+    proxy_set_header Connection "";
+
+    # Cache static assets served by the app.
+    location ~* \.(?:css|js|gif|png|jpe?g|webp|svg|woff2?)$ {
+        proxy_pass http://newbury_nights;
+        proxy_cache_valid 200 1h;
+        expires 1h;
+        add_header Cache-Control "public";
+    }
+
+    location / {
+        proxy_pass http://newbury_nights;
+    }
+}