istio.io/content/help/faq/setup/consul-unset-context.md

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Consul - How do I unset the context changed by kubectl at the end?	50

Your kubectl is switched to use the Istio context at the end of the kubectl use-context istio command. You can use kubectl config get-contexts to obtain the list of contexts and kubectl config use-context {desired-context} to switch to use your desired context.