List of environment variables related to cloud:

AKS

AZURE_SUBSCRIPTION_ID
AZURE_RESOURCE_GROUP

To specify the identity to use to pull images from ACR: AZURE_PULL_CLIENT_ID=UUID

EKS

KS_CLOUD_REGION

GKE

KS_GKE_PROJECT
KS_CLOUD_REGION

General

KS_CLOUD_PROVIDER
KS_KUBE_CLUSTER