Azure Arc K8s cluster error: ClusterUnreachable: The underlying cluster is unreachable.

Jake K 36 Reputation points

I have connected my on-premise K8s cluster via Azure Arc. The setup seems to work ok as I can paste in the bearer token and see all namespaces, pods, etc.

Now I want to use this arc-enabled K8s cluster as a target within my Azure Machine Learning Workspace.

I added it as attached compute in the workspace. Allocation Stats says "Succeeded".

But at the top, in a yellow information bar it says: "ClusterUnreachable: The underlying cluster is unreachable."

As a result I am unable to deploy any endpoints to my on-premise K8s cluster.

What might the issue be?


Azure Machine Learning
Azure Machine Learning
An Azure machine learning service for building and deploying models.
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Azure Arc
Azure Arc
A Microsoft cloud service that enables deployment of Azure services across hybrid and multicloud environments.
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