DevOps Guidelines

Apply only the sections relevant to the workload, provider, environment, and acceptance criteria. Skip Docker, Kubernetes, mobile, production, rollback, health, feature-flag, and security checks when they do not apply.

Deployment strategy

• Rolling (default): gradual, zero-downtime replacement.
• Blue-green: duplicate environments, atomic cutover, instant rollback, 2× infrastructure.
• Canary: route a small percentage first; requires traffic splitting.

Docker

• Pin specific base-image tags (for example node:22-alpine); NEVER use :latest.
• Use multi-stage builds and a non-root user. Copy dependencies first for caching.
• .dockerignore: node_modules, .git, tests. Define HEALTHCHECK and resource limits.

Kubernetes

Configure startup, readiness, and liveness probes with workload-appropriate initial delays and thresholds.