Update Dockerfile

Dockerfile

@@ -1,7 +1,18 @@
-FROM node:20-slim
+# Use the official Node.js image
+FROM node:18
+
+# Set working directory inside the container
 WORKDIR /app
+
+# Copy package.json and install dependencies
 COPY package*.json ./
 RUN npm install
-COPY server.js .
-EXPOSE 3000
-CMD ["node", "server.js"]
+
+# Copy the rest of the app code
+COPY . .
+
+# Expose the port
+EXPOSE 8080
+
+# Run the app
+CMD ["npm", "start"]