What Happens During a Production Deployment? A Behind-the-Scenes Guide
You push your code. A few minutes later, it is live for real users.
Between those two moments runs a long chain of machinery: builds, artefacts, migrations, health checks, traffic shifts. Every production engineer depends on that chain, and many teams still build and operate it themselves.
Deployment infrastructure has quietly become operational overhead. It started as a technical necessity, something every team had to assemble because nothing else existed.
Today it is a second system your engineers maintain alongside the product, consuming on-call rotations, sprint capacity, and 2 a.m. attention that could go somewhere better.
In this article, we will walk through each stage of a real production deployment: the build, the artefact it produces, database migrations, health checks, rolling updates, and rollbacks. Along the way, we will look at why platform-as-a-service (PaaS) tools handle most of these steps for you, and what it costs a team to keep handling them itself.
The Build: Turning Code into Something That Can Run
A deployment does not ship your source code as-is. It ships the result of a build. The build stage takes your code and turns it into something a…
