GetKubeConfigSecret retrieves the KubeConfig Secret (if any) from the given cluster name and namespace.

KubeConfigFromSecret uses the Secret to retrieve the KubeConfig.

KubeConfigSecretName generates the expected name for the Kubeconfig secret to access a remote cluster given the cluster's name.

NewClusterClient creates a new ClusterClient.

ClusterClient is an interface encapsulating methods to access a remote cluster.