type ClusterStore struct {
	sync.RWMutex
	// keyed by secret key(ns/name)->clusterID
	remoteClusters map[string]map[cluster.ID]*Cluster
	clusters       sets.String
}

// newClustersStore initializes data struct to store clusters information
func newClustersStore() *ClusterStore {
	return &ClusterStore{
		remoteClusters: make(map[string]map[cluster.ID]*Cluster),
		clusters:       sets.New[string](),
	}
}

		ClientBuilder:   DefaultBuildClientsFromConfig,
		namespace:       namespace,
		configClusterID: clusterID,
		configCluster:   &Cluster{Client: kubeclientset, ID: clusterID},
		cs:              newClustersStore(),
		secrets:         secrets,
		configOverrides: configOverrides,
		meshWatcher:     meshWatcher,
	}

	// Queue does NOT retry. The only error that can occur is if the kubeconfig is