Upgrading GKE cluster from 1.23 to 1.24

Google Cloud Serverless Applications
1

Hi,

I have a GKE standard cluster on v1.23. There’s an alert from GCP that we need to upgrade the node pools to use containerd images.

When I checked, the default node image is already using COS with containerd. The nodes in the node pool are still on COS image.

However when I tried to perform a manual upgrade, it states that the node image type is incompatible.

What are my options for an upgrade to 1.24? Should I create a new node pool with containerd image and remove the existing node pool?

Thanks.

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2

Hello MH1169,

In GKE version 1.24 and later, Docker-based node image types are not supported. In GKE version 1.23, you also cannot create new node pools with Docker node image types. You must migrate to a containerd node image type. To learn more about this change, see About the Docker node image deprecation. You can check this documentation for reference.

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