Nestjs Deployment

Deployment & Ops Standards

Docker Optimization

• Multi-Stage Builds: Mandatory.
  1. Build Stage: Install devDependencies, build NestJS (nest build).
  2. Run Stage: Copy only dist and node_modules (pruned), use node:alpine.
• Security: Do not run as root.
  • Dockerfile: USER node.

Runtime Tuning (Node.js)

• Memory Config: Container memory != Node memory.
  • Rule: Explicitly set Max Old Space.
  • Command: node --max-old-space-size=XXX dist/main
  • Calculation: Set to ~75-80% of Kubernetes Limit. (Limit: 1GB -> OldSpace: 800MB).