Kubastion is a simple container image based on centOS which focus is to be able to perform managment and network tasks.
Use docker build -t kubastion:0.1 .
to build the image.
Once the image has been built, the best workflow is to create an ECR Registry in order to upload the image. When you've finished uploading the image, simply run:
kubectl run kubastion --image=$REGISTRY/kubastion:0.1 --replicas=1
Execute the following command:
kubectl exec -ti kubastion /bin/bash