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Amazon EKS kubectl

This is a convenient docker image that contains:

  • kubectl (v1.11.0)
  • aws-iam-authenticator (v0.3.0)
  • AWS CLI (v1.15.69)

The default entrypoint for this container, is a small wrapper script for kubectl that automatically populates a ~/.kube/config with the correct EKS cluster details (endpoint, certificate authority).

Usage

$ docker run -e CLUSTER=demo maddox/kubectl get services
NAME            TYPE           CLUSTER-IP     EXTERNAL-IP        PORT(S)          AGE
kubernetes      ClusterIP      10.100.0.1     <none>             443/TCP          57d

AWS Credentials

The kubectl wrapper script used by this container uses the AWS CLI to fetch the necessary cluster details for the kube config file (api endpoint, certificate authority etc).

The AWS CLI will automatically pick up AWS credentials from environment variables (AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, and AWS_SESSION_TOKEN), the AWS credentials file (~/.aws/credentials), container credentials (ECS role) or EC2 instance role (in that order).

If you already have AWS credentials configured in ~/.aws/credentials you can pass these through by running:

$ docker run -v ~/.aws:/home/kubectl/.aws -e CLUSTER=demo maddox/kubectl get services