Add dockerfile

Initial upload

dockerfile

@@ -0,0 +1,21 @@
+# Use the official Node.js image from the Docker Hub
+FROM node:18-alpine
+
+# Set the working directory inside the container
+WORKDIR /app
+
+# Copy the package.json and package-lock.json to install dependencies
+COPY package.json .
+COPY package-lock.json .
+
+# Install dependencies
+RUN npm install
+
+# Copy the rest of the app files
+COPY . .
+
+# Expose the port the app runs on
+EXPOSE 3000
+
+# Command to run the app
+CMD ["node", "server.js"]