Kubernetes Controllers: Overview & Best Practices

Kubernetes Controllers are essential components of Kubernetes clusters responsible for managing the cluster's state based on user-deployed objects. They follow a control loop of observing, comparing, and taking action to ensure the desired state of the cluster. Examples of built-in Controllers include DaemonSet, Deployment, and Service Controllers, while custom Controllers called Operators can be installed to extend cluster functionality. Operators, such as Uffizzi's Cluster Operator, allow for the creation of virtual cluster resources.

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