Good news everyone, sidecars are cool again! The long-awaited merge of "sidecar KEP" in Kubernetes 1.28 officially introduces sidecars to the Kubernetes API and makes some major improvements to how they work.
In this post William Morgan walks you through everything you need to know: what sidecars are, what's good and what's bad about them, and what changes in Kubernetes 1.28—all from the perspective of a sidecar enthusiast and highly opinionated service mesh person.