Dockerfile

# Use Node.js 18 LTS
FROM node:18-alpine AS builder

# Set working directory
WORKDIR /app

# Copy package files
COPY package*.json ./
COPY prisma ./prisma/

# Install dependencies
RUN npm ci --only=production

# Generate Prisma Client
RUN npx prisma generate

# Copy source code
COPY . .

# Production stage
FROM node:18-alpine

# Set working directory
WORKDIR /app

# Copy node_modules and generated files from builder
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/package*.json ./
COPY --from=builder /app/prisma ./prisma

# Copy source code
COPY src ./src

# Create non-root user
RUN addgroup -g 1001 -S nodejs && \
    adduser -S nodejs -u 1001

# Change ownership
RUN chown -R nodejs:nodejs /app

# Switch to non-root user
USER nodejs

# Expose port
EXPOSE 4000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
  CMD node -e "require('http').get('http://localhost:4000/health', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"

# Start the application
CMD ["npm", "start"]