# Backend Node.js Dockerfile
FROM node:18-alpine

# Install production dependencies
RUN apk add --no-cache \
    curl \
    postgresql-client \
    && rm -rf /var/cache/apk/*

# Create app directory
WORKDIR /app

# Copy package files
COPY package*.json ./

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

# Copy application source
COPY . .

# Create necessary directories
RUN mkdir -p logs uploads temp && \
    chown -R node:node /app

# Switch to non-root user
USER node

# Expose port
EXPOSE 5000

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=40s --retries=3 \
  CMD curl -f http://localhost:5000/health || exit 1

# Start application
CMD ["node", "src/server.js"]