my work for https://github.com/Praqma/LearnKubernetes/blob/master/kamran/Kubernetes-The-Hard-Way-on-AWS.md
uses CentOS Linux 7 x86_64 HVM EBS ENA 1803_01-b7ee8a69-ee97-4a49-9e68-afaee216db2e-ami-8274d6ff.4 (ami-b81dbfc5)
configure any personal settings by creating a file named config.json, rename config.json.example and adjust as needed.