The kube-state-metrics service runs as part of the kubernetes API and provides container metrics. It replaces heapster. The node exporter runs as a daemonset

The kube-state-metrics service runs as part of the kubernetes API and provides container metrics. It replaces heapster. The node exporter runs as a daemonset on each node and provides node specific metrics like CPU, memory, disk IO, network IO, etc. The node metrics comes from the node itself.