Update Dockerfile

Dockerfile

@@ -8,13 +8,13 @@ WORKDIR /app
 COPY index.html ./
 COPY exdocker ./
 
-# Copy the start.sh script and make it executable
+# Switch to root user to copy start.sh, make it executable, and install curl
+# These operations require root privileges
+USER root
 COPY start.sh ./
 RUN chmod +x ./start.sh
-
-# Switch to root user to install curl, as apk requires root privileges
-USER root
 RUN apk add --no-cache curl
+
 # Switch back to the default non-root user for dind-rootless (usually 'docker')
 # This is important for security and proper operation of the rootless daemon
 USER docker