Deployment Pipeline Design

This one walks you through structuring CI/CD pipelines with the staging gates and approval workflows that keep production deploys from turning into fire drills. You get concrete patterns for manual approvals, time delays, and multi-approver gates across GitHub Actions, GitLab, and Azure Pipelines. The deployment strategy section is solid, covering rolling updates, blue-green, canary with Argo Rollouts, and feature flags with actual config snippets. It includes a full multi-stage pipeline example that chains build, test, staging, integration tests, and production with health checks and automated rollback logic. The metrics section covers the DORA four (deployment frequency, lead time, change failure rate, MTTR) which is what you actually need to track if you're serious about improving your release process.