ci: add site pipeline

nginx/nginx.conf

@@ -0,0 +1,34 @@
+server {
+    listen 8080;
+    server_name _;
+    server_tokens off;
+    root /usr/share/nginx/html;
+
+    gzip on;
+    gzip_min_length 1024;
+    gzip_types text/css application/javascript image/svg+xml application/json;
+
+    include /etc/nginx/snippets/security-headers.conf;
+
+    # Only these paths are served; .git, tools/, README.md, images/ etc. return 404.
+    location = / {
+        try_files /index.html =404;
+        add_header Cache-Control "no-cache" always;
+        include /etc/nginx/snippets/security-headers.conf;
+    }
+    location = /index.html {
+        add_header Cache-Control "no-cache" always;
+        include /etc/nginx/snippets/security-headers.conf;
+    }
+    location ~ ^/(favicon\.svg|robots\.txt)$ {
+        add_header Cache-Control "public, max-age=86400" always;
+        include /etc/nginx/snippets/security-headers.conf;
+    }
+    location ^~ /assets/ {
+        add_header Cache-Control "public, max-age=3600" always;
+        include /etc/nginx/snippets/security-headers.conf;
+    }
+    location / {
+        return 404;
+    }
+}

nginx/security-headers.conf

@@ -0,0 +1,5 @@
+add_header Content-Security-Policy "default-src 'none'; script-src 'self'; style-src 'self'; img-src 'self' data:; font-src 'self'; connect-src 'self'; manifest-src 'self'; base-uri 'none'; form-action 'none'; frame-ancestors 'none'" always;
+add_header X-Content-Type-Options "nosniff" always;
+add_header X-Frame-Options "DENY" always;
+add_header Referrer-Policy "strict-origin-when-cross-origin" always;
+add_header Permissions-Policy "camera=(), microphone=(), geolocation=()" always;