What Happens During a Production Deployment? A Behind-the-Scenes Guide
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A walkthrough of every stage in a production deployment pipeline: building code into artifacts, storing versioned artifacts, running database migrations safely, health checks, rolling updates, and rollbacks. Each stage is explained with practical detail, including the risks (especially around migrations) and how PaaS platforms handle these steps automatically. The post also covers when it makes sense to own your own pipeline — regulated industries, teams whose product IS deployment infrastructure, or genuinely unusual workloads — and argues that for most product teams, maintaining a custom pipeline is an unjustified cost.
Table of contents
Table of ContentsThe Build: Turning Code into Something That Can RunThe Artefact: One Version, Frozen in TimeDatabase Migrations: The Riskiest StepHealth Checks: Proving the New Version Is AliveRolling Updates: Replacing the Plane's Engine Mid-FlightRollbacks: The Escape HatchWhen You Don't Need a PaaSShould You Still Be Running This Yourself?188 Impressions