Joining a self-managed autoscaling group nodes (not using node groups) to an EKS cluster

[moshe0076]

Hello,

When working with Amazon Linux OS-based nodes, we can use the /etc/eks/bootstrap.sh script to bootstrap a node (running in a self-managed autoscaling group, not using node groups) to join an EKS cluster. I was wondering if this is also possible with Bottlerocket OS-based nodes? Do I use the bootstrap.sh or the settings.kubernetes.* instead? If settings.kubernetes.* is the way to go, what are the parameters that need to be added to the user data in a CloudFormation/CDK stack?

Thanks!

[cbgbt]

Hello,

I often do this via settings.kubernetes.* by applying userdata like the following:

[settings.kubernetes]

# Kubernetes Control Plane API Endpoint
api-server = "https://API_SERVER_HOSTNAME"

# Kubernetes Cluster CA Certificate
cluster-certificate = "INSERT_CLUSTER_CERT"

# Kubernetes Cluster Name
cluster-name = "INSERT_CLUSTER_NAME"

Hope that helps! Let me know if you have any questions.