# Use official Node.js 20 LTS image
FROM node:20-alpine

# Set working directory
WORKDIR /app

# Install dependencies first (better caching)
COPY package*.json ./
RUN npm ci --production

# Copy source files (including .next build output if pre-built)
COPY . .

# If you want to build inside container, uncomment:
# RUN npm run build

# Use non-root user (optional, but recommended)
RUN addgroup -S appgroup && adduser -S appuser -G appgroup
USER appuser

# Expose port your app listens on
EXPOSE 3000

# Start your Next.js app (adjust if using custom server)
CMD ["npm", "start"]