Amazon EKS clusters require kubectl and kubelet binaries and the aws-cli or aws-iam-authenticator binary to allow IAM authentication for your Kubernetes cluster.
awscli
How to run AWS CLI within a Lambda function
Learn how to setup lambda execution environment to run awscli commands.
How to list all instances in all regions from multiple accounts using awscli – AWS
We can use awscli command to list all instances from all regions across multiple AWS accounts using multiple profile names.