Posts Tagged ‘GreenOps’
[KCDUK2024] Sustainability Chronicles: Innovate Through Green Technology With Kepler and KEDA | KCDUK2024
The Imperative of Cloud Sustainability
At KCDUK2024, Katie Gamanji, a Senior Field Engineer at Apple and a prominent figure in the Cloud Native Computing Foundation (CNCF), delivered a compelling session titled “Sustainability Chronicles: Innovate Through Green Technology With Kepler and KEDA.” Katie’s presentation addressed the critical need for environmental consciousness in the tech sector, particularly within the cloud native ecosystem. With a decade of Kubernetes driving industry transformation, Katie emphasized the urgency of integrating sustainability into technological decision-making, given the tech sector’s 1.4% contribution to global greenhouse gas emissions.
Katie outlined the global context, referencing the Paris Agreement (COP21) and the United Nations’ Sustainable Development Goals (SDG13), which call for proactive climate action. She highlighted that adopting renewable energy could reduce tech emissions by 80%, a potential that major cloud providers like GCP, AWS, and Azure are pursuing through net-zero targets. Katie’s narrative framed sustainability as an integral part of operational efficiency, introducing the concept of GreenOps, which aligns resource optimization with reduced environmental impact.
Measuring Emissions with Kepler
Katie introduced Kepler, a CNCF sandbox project developed by Red Hat and IBM, as a pivotal tool for measuring application emissions in Kubernetes. Kepler leverages eBPF to collect energy consumption data, converting it into CO2 emissions using hardcoded emission factors for coal, petroleum, and natural gas. Deployed on a local Kind cluster, Kepler’s Grafana dashboards provide granular insights into emissions per container, day, and namespace. This capability enables organizations to identify high-emission workloads and implement targeted optimizations.
Katie encouraged community engagement with Kepler, noting its sandbox status and potential for growth. By providing feedback or contributing features, practitioners can enhance Kepler’s utility, fostering a collaborative approach to sustainability. Her demonstration underscored the importance of observability in addressing emissions, setting the stage for proactive workload management.
Scaling with KEDA and Carbon-Aware Operator
To move beyond measurement, Katie introduced KEDA (Kubernetes Event-Driven Autoscaler) and its Carbon-Aware Operator, which optimize application scaling based on carbon intensity. KEDA, a graduated CNCF project, scales workloads in response to external events, such as carbon intensity data from grid providers like WattTime or Electricity Map. The Carbon-Aware Operator adjusts replica counts inversely to carbon intensity, maximizing replicas when renewable energy is abundant and minimizing them during high-emission periods.
Katie’s local deployment showcased this dynamic scaling, visualized through Grafana, where low carbon intensity correlated with higher replica counts. This approach exemplifies proactive sustainability, aligning computational demands with environmental impact. Katie’s advocacy for KEDA highlighted its evolution from a niche solution to an industry standard, encouraging practitioners to explore its potential for green innovation.
Community-Driven Sustainability
Beyond technology, Katie emphasized the role of community in driving sustainability. The Kubernetes community’s inclusive ethos fosters innovation through open governance and diverse contributions. She highlighted the CNCF’s Technical Advisory Group (TAG) for Environmental Sustainability, which promotes green practices across projects. Initiatives like the Green Reviews Working Group and sustainability white papers offer avenues for engagement, encouraging practitioners to contribute beyond code.
Katie’s call to action urged attendees to diversify technical boards and create welcoming spaces for new ideas. Her narrative wove together technological innovation and community collaboration, positioning sustainability as a shared responsibility. By integrating tools like Kepler and KEDA with community efforts, the cloud native ecosystem can lead in green technology, shaping a sustainable future.