Conference:  KubeCon + CloudNativeCon Europe 2023

Authors: David Meder-Marouelli, Marco Schröder

2023-04-20

The presentation discusses the reserves and optimization strategies for bare metal servers in a Kubernetes cluster to minimize energy consumption and costs.

• There are three types of reserves: scale out reserves for future growth, geo-resident density reserves, and peak performance reserves.
• Automation is key to quickly re-enabling hardware and minimizing energy consumption.
• Immutable infrastructure and active-active data centers help with geo-redundancy reserves.
• Transparency and buy-in from management is important for balancing potential cost savings and risks.
• The presentation emphasizes the importance of measuring and quantifying energy consumption to make informed decisions about optimization strategies.

Conference:  ContainerCon 2022

Authors: Chen Wang, Huamin Chen

2022-06-21

Do you want to help combat climate change? Are you concerned with the electricity cost of your Kubernetes clusters? Then join our efforts to manage energy efficiency on Kubernetes clusters. Currently, the energy consumption metrics are only available at node levels. There is no way to obtain container-level energy consumption. Autoscalers and schedulers really need pod-level metrics data in order to obtain energy savings from resizing or migrating containers. We present Kubernetes-based Efficient Power Level Exporter (Kepler) and its integration with Kubernetes. By leveraging eBPF programs, Kepler probes per container energy consumption related system counters and exports them as metrics. These metrics help end users observe their containers’ energy consumption and allow cluster admins to make intelligent decisions on achieving energy conservation goals. We demonstrate that the Kepler can be easily integrated into Prometheus and the existing dashboard.