Why does `kubectl apply` give me a warning that a resource is 'missing the kubectl.kubernetes.io/last-applied-configuration annotation'?

This happens if you initially created a resource using an imperative command (like `kubectl create`) but then try to update it using the declarative `kubectl apply`. Always use `apply` from the very beginning to establish the initial tracking annotation.

Can I use kubectl to manage multiple clusters at once?

Yes. Your kubeconfig file can hold details for dozens of clusters. You switch your active target by running `kubectl config use-context `.

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Mastering the Kubectl CLI

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