add docker file

dockerfile

@@ -0,0 +1,18 @@
+# Use the official Nginx image from the Docker Hub
+FROM nginx:latest
+
+# Remove the default Nginx website
+RUN rm -rf /usr/share/nginx/html/*
+
+# Copy the current directory contents into the Nginx web directory
+COPY . /usr/share/nginx/html
+
+# Expose port 80 to the outside world
+EXPOSE 80
+
+# Run Nginx in the foreground (this ensures the container stays running)
+CMD ["nginx", "-g", "daemon off;"]
+
+#run this app you have to use 2 command 
+# 1. docker build -t your-image-name
+# 2. docker run -d -p 3000:80 your-image-name