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How can I detect which hyperscaler is running my Kubernetes cluster?

I have to configure an application running on Kubernetes, and I do not have access to any hyperscaler-specific management infrastructure.

How can I figure out whether my cluster runs on one of the big three (Amazon, Azure, or Google GKE) using only kubectl with a valid KUBECONFIG file?

Solution

  • I found a technical solution: the node.spec.providerID field starts with the platform name.

    kubectl get nodes -o jsonpath='{.items[].spec.providerID}'

    returns <ProviderName>://<ProviderSpecificNodeID>.

    See the definition of Node in the Kubernetes Specs.