Create Dockerfile

Dockerfile

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+# 1. Base image with Node.js
+FROM node:18-alpine
+
+# 2. Set working directory inside the container
+WORKDIR /app
+
+# 3. Copy package files and install dependencies
+COPY package.json package-lock.json* ./
+RUN npm install
+
+# 4. Copy all other source files
+COPY . .
+
+# 5. Build the Next.js app
+RUN npm run build
+
+# 6. Set environment variable for the custom port
+ENV PORT=7860
+
+# 7. Expose port 7860
+EXPOSE 7860
+
+# 8. Start the Next.js app
+CMD ["npm", "start"]