Multi-Cloud Support

GreenKube includes instance-power and region-to-carbon-zone data for AWS, GCP, Azure, OVHcloud, and Scaleway, plus configurable support for on-premises clusters. Detection and mapping coverage depends on the node metadata and the built-in mapping tables; unresolved zones use the configured fallback.

Supported Providers

Provider	Regions	Auto-Detection
Amazon Web Services	Built-in mappings for supported regions	From node labels
Google Cloud Platform	Built-in mappings for supported regions	From node labels
Microsoft Azure	Built-in mappings for supported regions	From node labels
OVHcloud	Provider-specific power estimates and zone mappings	From node metadata
Scaleway	Provider-specific power estimates and zone mappings	From node metadata
On-premises	Manual configuration	Via config

How It Works

1. Provider Detection

GreenKube reads Kubernetes node labels to identify the cloud provider:

node.kubernetes.io/instance-type → AWS, GCP, Azure
topology.kubernetes.io/region → Region identifier
Provider-specific labels as fallback

2. Instance Power Profiles

Power estimates use a profile with minimum and maximum watts per vCPU and the instance’s vCPU count. They are not hardware power measurements; see Energy Estimation for the model and its assumptions.

3. Region → Carbon Zone Mapping

Each cloud region is mapped to an electricity grid zone:

AWS us-east-1     → US-MIDA-PJM    (PJM Interconnection)
AWS eu-west-1     → IE              (Ireland)
GCP europe-west1  → BE              (Belgium)
Azure westeurope  → NL              (Netherlands)
OVH GRA           → FR              (France)
Scaleway fr-par   → FR              (France)

These are examples from the built-in mapping tables; grid intensity changes over time and is sourced separately. Unmapped regions fall back to config.defaultZone when set, or to the configured global intensity.

On-Premises or Unknown Providers

For on-premises clusters or unsupported providers, set:

config:
  cloudProvider: on-prem    # or leave as "unknown" for auto-detection
  defaultZone: "FR"         # Electricity Maps zone code
  defaults:
    pue: 1.5                # Your data center PUE

GreenKube uses the SPECpower linear model for power estimation regardless of provider.

PUE (Power Usage Effectiveness)

GreenKube uses a provider-level PUE factor in its modeled operational-emissions calculation:

Provider	Typical PUE
AWS	1.15
GCP	1.09
Azure	1.18
OVHcloud	1.26
Scaleway	1.37

For on-premises nodes, configure a PUE appropriate to your environment. The generic default profile uses PUE 1.3.

Total Power = IT Power × PUE

Carbon Tracking — How emissions are calculated
Energy Estimation — Power model details
Configuration Guide — Provider settings