TEST: Gemini Canvas suddenly make a good result

Dockerfile

@@ -1,13 +1,22 @@
-# Use the official lightweight Nginx image
+# Use the official lightweight Nginx image from Docker Hub.
+# The 'alpine' tag means it's based on the small Alpine Linux distribution.
 FROM nginx:alpine
 
-# Set the working directory inside the container
+# Set the working directory to the default Nginx web root.
+# Any subsequent COPY commands will be relative to this directory.
 WORKDIR /usr/share/nginx/html
 
-# Copy all project files from the build context to the working directory
-# The '.' means 'copy everything from the current folder (my-portfolio)'
-# into the WORKDIR of the container. This is the key fix.
-COPY . .
+# Copy the website files from your local machine (the build context)
+# into the working directory inside the container.
+# This assumes your index.html, profile.jpg, and favicon.png
+# are in the same directory as this Dockerfile.
+COPY index.html profile.jpg favicon.png ./
 
-# Expose port 80 to the Docker host
-EXPOSE 80
+# Expose port 80 on the container. This is the default port for HTTP traffic
+# that Nginx listens on. You will map this to a host port when you run the container.
+EXPOSE 80
+
+# The default command for the nginx image is to start the server.
+# However, it's good practice to specify it for clarity.
+# This command starts nginx in the foreground, which is standard for containers.
+CMD ["nginx", "-g", "daemon off;"]