Documentation
Metrics
Current usage from metrics-server, history from Prometheus, and an honest fallback when there is no Prometheus to ask.
In the tables
Current CPU and memory come from metrics-server and appear in the rows themselves.
History
CPU and memory over time come from Prometheus, auto-discovered and queried through the apiserver proxy rather than needing a route of its own.
spinoza --prometheus monitoring/prometheus-server:80With no Prometheus to ask, Spinoza samples metrics-server itself while the window is open, and says so on the chart rather than presenting a short window as history.