Etcd also implements a watch feature, which provides an event-based interface for asynchronously monitoring changes to keys. Once a key is changed, its “watchers” get notified. This is a crucial feature in the context of Kubernetes, as the API Server component heavily relies on this to get notified and call the appropriate business logic components to move the current state towards the desired state.
Our control plane consists of multiple microservices and Kubernetes operators. As a reminder, an operator in Kubernetes is a custom controller, paired with a CRD (Custom Resource Definition), that extends the Kubernetes API.
…h is, there are hardly any good reasons to know if someone’s available or away at any given moment. If you truly need something from someone, ask them. If they respond, then you have what you needed. If they don’t, it’s not because they’re ignoring you — it’s because they’re busy. Respect that! Assume people are focused on their own work.
…project, an open framework to assemble specialized container systems without reinventing the wheel. Moby provides a library of components, a framework for assembling them into custom container-based systems and a place for all container enthusiasts to experiment and exchange ideas. To better understand the origin and purpose of Moby I’d recommend watching the following the follow…