Devconf.cz 2023

Obtaining container-level energy consumption metrics is currently not possible, which poses a challenge for achieving energy savings from resizing or migrating containers. The Kubernetes-based Efficient Power Level Exporter (Kepler) addresses this issue by using eBPF programs to probe per container energy consumption related system counters and export them as metrics. These metrics help end-users observe container energy consumption and cluster admins make informed decisions on achieving energy conservation goals. Kepler can be integrated into Prometheus and render time series metrics into Grafana. With Kepler, clusters can be managed sustainably, optimizing energy consumption and carbon intensity while ensuring workload performance is not degraded. Kepler observability enables energy and carbon intensity-aware scheduling and vertical pod autoscaling, leading to more efficient energy use.