Preview Environments That Actually Promote to Prod

Wed, 26 Aug 2026 00:45:00 +0530

Overview

Last week’s post closed with a promise that was really four promises: preview environments per change, release trains where stable and canary share a namespace, weighted traffic splitting on Gateway API HTTPRoutes, and promotion gates between all of it. Honesty being the house rule of this series: two of those four are running in anger, and two are still designs. This post is about the real two — ephemeral previews and promotion — and ends with a straight account of the other two, because I’d rather correct myself than let a closing paragraph quietly become marketing.

Preview Environments on rtnpro

Preview Environments That Actually Promote to Prod

Overview