OSS + ELC EU 2026

Authoritative DNS is one of the last holdouts against declarative, GitOps-style management. BIND9 still serves a huge share of the world's zone data, but it's driven imperatively: hand-edited zone files, rndc reload, and brittle automation glued on top. bindy is an open-source Kubernetes operator, written in Rust on kube-rs, that closes the gap. It models zones and records as custom resources and continuously reconciles a running BIND9 against them, leaving no orphaned zone file behind.
This talk walks through the architecture of bindy and its sibling projects, bindcar, a sidecar that exposes RNDC operations over a typed API, and hornet, a Rust zone-file parser, then digs into the operator-engineering lessons that transfer to anyone writing controllers in Rust. We'll cover splitting selection from synchronization to avoid reconcile loops, using the reflector and store, modeling ownership and status conditions, and where Rust and kube-rs paid off versus Go's controller-runtime.
Attendees leave with a concrete, reusable pattern for wrapping any stateful, non-cloud-native daemon in a declarative Kubernetes API, and three open-source projects they can adopt, fork, or contribute to.