cicd-gitops-and-progressive-deployment

Cicd Gitops And Progressive Deployment

Use When

• Teams need repeatable release automation
• Manual deploys cause drift and risk

Workflow

1. Define pipeline stages and quality gates
2. Use infrastructure and app GitOps repos
3. Implement canary or blue-green where needed
4. Automate smoke tests after promotion
5. Document rollback automation

Required Checks

• Pipeline blocks on failed gates
• Environment promotion is auditable
• Rollback executed successfully in drill
• Deployment artifacts immutable and traceable

Decision Framework

• Prefer explicit contracts and compatibility rules before implementation.
• If dependency risk is high, require timeout, retry, and fallback strategy per call path.
• If async messaging is used, require idempotency, replay, and dead-letter handling.
• If traffic patterns are volatile, require load, failover, and scaling validation before ship.

Common Rationalizations And Rebuttals

• "Retries will handle failures automatically." -> Unbounded retries can amplify outages; use budgets.
• "We can skip runbooks for now." -> Operational ambiguity delays incident recovery.
• "Contract changes are minor." -> Small breaking changes cause broad downstream regressions.

Evidence Pack

• Contract compatibility note and migration strategy (if applicable)
• Failure-mode test evidence for dependency degradation and recovery
• Observability snapshot (latency, error, saturation, or queue health)
• Rollout and rollback steps with clear trigger thresholds

Exit Criteria

• Workflow is production-ready with verified evidence
• Operational and security guardrails are in place
• Release and rollback expectations are documented