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A Cheat sheet

Eks kube config

Update kubeconfig file with AWS EKS cluster credentials 

aws eks --profile $PROFILE  --region eu-west-2 update-kubeconfig --name $CLUSTERNAME

Addons

Commands to list and verify EKS addons and its versions for specific K8s versions. 

# Get latest version for specific add on for specific K8s version
aws eks describe-addon-versions --profile $PROFILE \
    --kubernetes-version=1.30 \
    --addon-name=vpc-cni \
    --query 'sort_by(addons  &addonName)[].{owner: owner, addonName: addonName, type: type, Version: addonVersions[0].addonVersion }'

# Get all latest addOn versions
aws eks --profile $PROFILE describe-addon-versions  \
    --kubernetes-version=1.30 \
    --query 'sort_by(addons  &addonName)[].{owner: owner, addonName: addonName, type: type, Version: addonVersions[0].addonVersion }'

# Get available configurations for specific addon
aws eks --profile $PROFILE describe-addon-configuration --addon-name vpc-cni --addon-version v1.15.5-eksbuild.1 --output yaml

# List addons installed on your cluster
aws eks --profile $PROFILE list-addons --cluster-name uk-as-dev-cluster1

ECR public repo unable to retrieve credentials

When trying to access public repo hosted on AWS ECR can result in Authentication failure.

** ERROR 

helm pull oci://public.ecr.aws/karpenter/karpenter       

Error: GET "https://public.ecr.aws/v2/karpenter/karpenter/tags/list":
unable to retrieve credentials

Solution

Log on to helm registry with AWS ECR public access credentials 

aws ecr-public get-login-password \
     --region us-east-1 | helm registry login \
     --username AWS \
     --password-stdin public.ecr.aws

Service account

# List SVC Account 
eksctl get iamserviceaccount --profile $PROFILE --cluster $CLUSTERNAME