To preface, I'm not a Kubernetes or Mosquitto expert by any means.<p>I'm confused about one point. A k8s Service sends traffic to pods matching the selector that are in "Ready" state, so wouldn't you accomplish HA without the pseudocontroller by just putting both pods in the Service? The Mosquitto bridge mechanism is bi-directional so you're already getting data re-sync no matter where a client writes.<p>edit: I'm also curious if you could use a headless service and use an init container on the secondary to set up the bridge to the primary by selecting the IP that isn't it's own.