Dockerfile

# Multi-stage build for optimized production image
FROM node:20-alpine AS builder

# Set working directory
WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm ci --only=production && \
    npm cache clean --force

# Copy source code
COPY . .

# Build TypeScript
RUN npm run build

# Production stage
FROM node:20-alpine AS production

# Install dumb-init for proper signal handling
RUN apk add --no-cache dumb-init

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

# Set working directory
WORKDIR /app

# Copy package files
COPY package*.json ./

# Install production dependencies only
RUN npm ci --only=production && \
    npm cache clean --force

# Copy built application from builder
COPY --from=builder /app/dist ./dist

# Copy necessary files
COPY .env.example .env.example

# Change ownership to non-root user
RUN chown -R ordo:ordo /app

# Switch to non-root user
USER ordo

# Expose port (if needed for API)
EXPOSE 3000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
  CMD node -e "require('http').get('http://localhost:3000/health', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"

# Use dumb-init to handle signals properly
ENTRYPOINT ["dumb-init", "--"]

# Start application
CMD ["node", "dist/index.js"]