# Use a stable Node LTS base
FROM node:18-alpine

# Create app directory
WORKDIR /app
ENV NODE_ENV=production
ENV PORT=7860

# Install dependencies
COPY package.json package-lock.json* ./
RUN npm ci --production

# Copy app source
COPY . .

# Expose the port (container runtime will forward it)
EXPOSE 7860

# Ensure your server reads process.env.PORT (see instructions below)
CMD ["npm", "start"]