Can I use same ami_release-version while updating EKS cluster?

[ravdy]

Hi,
i am trying to upgrade my EKS cluster from 1.30 to 1.31
Currently we are using ami_release-version as below.

    ami_type = "BOTTLEROCKET_ARM_64"
    ami_release_version = "1.34.0-18d04e52"

Can use same bottlerocket version while upgrading to 1.31? or should we need to change along with the upgrade?
is there anyway I can check whether this version supports for 1.31. quick help greatly appreciated. Thanks in advance.

[bcressey]

Yes, in this case you can use the same version.

Querying SSM is the most robust way to check whether AMIs exist for a particular combination of Kubernetes and Bottlerocket versions.

# k8s 1.30 is available for version 1.34.0
❯ aws ssm get-parameter --region us-west-2 --name "/aws/service/bottlerocket/aws-k8s-1.30/arm64/1.34.0/image_id" --query Parameter.Value --output text
ami-04a3f6f6fc641ad90

# k8s 1.31 is too
❯ aws ssm get-parameter --region us-west-2 --name "/aws/service/bottlerocket/aws-k8s-1.31/arm64/1.34.0/image_id" --query Parameter.Value --output text
ami-05ef38ff6d15c2dd8

# k8s 1.33 wasn't released yet, so no parameter exists for version 1.34.0
❯ aws ssm get-parameter --region us-west-2 --name "/aws/service/bottlerocket/aws-k8s-1.33/arm64/1.34.0/image_id" --query Parameter.Value --output text

An error occurred (ParameterNotFound) when calling the GetParameter operation:

[ravdy]

Thanks for your reply @bcressey. it is helpful.