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dyolink/backend/Dockerfile

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Docker
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# ============================================
# STAGE 1: BUILDER STAGE
# ============================================
# This stage builds the application and prepares assets
FROM node:18-alpine AS builder
# Set working directory
WORKDIR /app
# Copy package.json and package-lock.json first (for better caching)
COPY package*.json ./
# Copy Prisma schema (needed for Prisma client generation)
COPY prisma ./prisma/
# Install ALL dependencies (including dev dependencies for build)
RUN npm ci
# Copy source code
COPY . .
# Generate Prisma client
RUN npx prisma generate
# Build the NestJS application
RUN npm run build
# Remove development dependencies to reduce size
RUN npm prune --production
# ============================================
# STAGE 2: PRODUCTION STAGE
# ============================================
# This stage creates the final production image
FROM node:18-alpine
# Install dumb-init for proper signal handling
RUN apk add --no-cache dumb-init
# Set working directory
WORKDIR /app
# Create non-root user for security
RUN addgroup -g 1001 -S nodejs && \
adduser -S dyolink -u 1001
# Copy package.json files
COPY package*.json ./
# Copy Prisma schema
COPY prisma ./prisma/
# Install ONLY production dependencies
RUN npm ci --only=production && \
npm cache clean --force
# Generate Prisma client in production
RUN npx prisma generate
# Copy built application from builder stage
COPY --from=builder /app/dist ./dist
# Copy node_modules (already pruned)
COPY --from=builder /app/node_modules ./node_modules
# Create necessary directories with proper permissions
RUN mkdir -p /app/logs && \
chown -R dyolink:nodejs /app
# Set ownership of all files to non-root user
RUN chown -R dyolink:nodejs /app
# Switch to non-root user
USER dyolink
# Expose the application port
EXPOSE 3000
# Health check configuration
HEALTHCHECK --interval=30s --timeout=5s --start-period=40s --retries=3 \
CMD node -e "require('http').get('http://localhost:3000/api/health', (r) => {if(r.statusCode!==200)throw new Error()})" || exit 1
# Copy entrypoint script
COPY docker-entrypoint.sh /usr/local/bin/
RUN chmod +x /usr/local/bin/docker-entrypoint.sh
# Use dumb-init to properly handle signals
ENTRYPOINT ["dumb-init", "--", "docker-entrypoint.sh"]
# Start the application
CMD ["node", "dist/main"]