https://github.com/coreos/etcd/releases/download/v3.2.24/etcd-v3.2.24-linux-amd64.tar.gz
https://storage.googleapis.com/kubernetes-release/release/v1.12.8/bin/linux/amd64/kubeadm
http://download.pingcap.org/v1.12.8/kubelet
http://download.pingcap.org/tkctl-linux-amd64-v1.0.0-beta.2.tgz
https://storage.googleapis.com/kubernetes-release/release/v1.14.1/bin/linux/amd64/kubectl
https://storage.googleapis.com/kubernetes-helm/helm-v2.13.1-linux-amd64.tar.gz
https://s3.amazonaws.com/chartmuseum/release/v0.8.2/bin/linux/amd64/chartmuseum