90 lines
2.1 KiB
Docker
90 lines
2.1 KiB
Docker
# ========================================
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# Multi-stage Dockerfile for Backend Node.js
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# ========================================
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# ========================================
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# Stage 1: Base
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# ========================================
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FROM node:20-alpine AS base
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# Install dumb-init for proper signal handling
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RUN apk add --no-cache dumb-init
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# Set working directory
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WORKDIR /app
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# Copy package files for dependency installation
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COPY package*.json ./
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# ========================================
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# Stage 2: Dependencies
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# ========================================
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FROM base AS dependencies
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# Install ALL dependencies (including devDependencies for build)
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RUN npm install
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# ========================================
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# Stage 3: Development
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# ========================================
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FROM dependencies AS development
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# Set NODE_ENV
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ENV NODE_ENV=development
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# Copy application code
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COPY . .
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# Expose port
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EXPOSE 3000
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# Use dumb-init to handle signals properly
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ENTRYPOINT ["dumb-init", "--"]
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# Start with nodemon for hot reload
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CMD ["npm", "start"]
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# ========================================
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# Stage 4: Production Dependencies
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# ========================================
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FROM base AS production-dependencies
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# Install only production dependencies
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RUN npm install --only=production && \
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npm cache clean --force
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# ========================================
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# Stage 5: Production Build
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# ========================================
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FROM base AS production
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# Set NODE_ENV
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ENV NODE_ENV=production
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# Copy production dependencies
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COPY --from=production-dependencies /app/node_modules ./node_modules
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# Copy application code
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COPY . .
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# Create non-root user for security
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RUN addgroup -g 1001 -S nodejs && \
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adduser -S nodejs -u 1001 && \
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chown -R nodejs:nodejs /app
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# Switch to non-root user
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USER nodejs
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# Expose port
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EXPOSE 3000
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# Health check
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HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
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CMD node -e "require('http').get('http://localhost:3000/health', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"
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# Use dumb-init to handle signals properly
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ENTRYPOINT ["dumb-init", "--"]
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# Start the application
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CMD ["node", "server.js"]
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