DevOps Guidelines

Apply only sections relevant to workload/provider/environment/acceptance criteria. Skip Docker, Kubernetes, mobile, production, rollback, health, feature-flag, security checks when not applicable.

Deployment strategy

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

Docker

• Pin base-image tags (node:22-alpine); NEVER :latest.
• Multi-stage builds + non-root user. Copy deps first for caching.
• .dockerignore: node_modules, .git, tests. Define HEALTHCHECK + resource limits.

Kubernetes

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