Refactor Caddyfile configuration for headscale-admin (#7821)

install/headscale-install.sh

@@ -24,26 +24,24 @@ if [[ ${prompt,,} =~ ^(y|yes)$ ]]; then
   $STD caddy stop
   rm /etc/caddy/Caddyfile
   cat <<'EOF' >/etc/caddy/Caddyfile
-:{$PORT:80}
+:80
+
+redir /admin /admin/
 
 handle_path /admin* {
-        root * /opt/headscale-admin
-        encode gzip zstd
+    root * /opt/headscale-admin
+    encode gzip zstd
 
-        # Correct MIME types for JS/WASM
-        header {
-                @js_files path *.js
-                @wasm_files path *.wasm
+    header {
+        X-Content-Type-Options nosniff
+    }
 
-                Content-Type @js_files application/javascript
-                Content-Type @wasm_files application/wasm
+    try_files {path} {path}/ /opt/headscale-admin/index.html
+    file_server
+}
 
-                X-Content-Type-Options nosniff
-        }
-
-        # Fallback for SPA routing
-        try_files {path} {path}/ index.html
-        file_server
+handle /api/* {
+    reverse_proxy localhost:8080
 }
 
 EOF