In version 1.18, the /metrics/resources/v1alpha1 endpoint will be going away.

https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.18.md

resource metrics endpoint /metrics/resource/v1alpha1 as well as all metrics under this endpoint have been deprecated. Please convert to the following metrics emitted by endpoint /metrics/resource: - scrape_error --> scrape_error - node_cpu_usage_seconds_total --> node_cpu_usage_seconds - node_memory_working_set_bytes --> node_memory_working_set_bytes - container_cpu_usage_seconds_total --> container_cpu_usage_seconds - container_memory_working_set_bytes --> container_memory_working_set_bytes - scrape_error --> scrape_error (#86282, @RainbowMango) [SIG Node]