Add static Piper asset service

nginx/default.conf

@@ -0,0 +1,33 @@
+server {
+    listen 8080;
+    server_name _;
+    root /usr/share/nginx/html;
+
+    location = /healthz {
+        access_log off;
+        return 204;
+    }
+
+    location = /static/version.txt {
+        default_type text/plain;
+        add_header Cache-Control "no-store, no-cache, must-revalidate, max-age=0" always;
+        try_files $uri =404;
+    }
+
+    location ^~ /static/ {
+        types {
+            application/wasm wasm;
+            application/javascript js mjs;
+            application/json json;
+            application/octet-stream onnx data;
+            text/plain txt;
+        }
+        add_header Cache-Control "public, max-age=31536000, immutable" always;
+        add_header Cross-Origin-Resource-Policy "same-origin" always;
+        try_files $uri =404;
+    }
+
+    location / {
+        return 404;
+    }
+}