https://dl.k8s.io/release/v1.22.7/bin/linux/amd64/kubectl
https://get.helm.sh/helm-v3.6.3-linux-amd64.tar.gz
https://github.com/chartmuseum/helm-push/releases/download/v0.9.0/helm-push_0.9.0_linux_amd64.tar.gz
https://github.com/rancher/rke/releases/download/v1.3.8/rke_linux-amd64
https://charts.jetstack.io/charts/cert-manager-v1.5.4.tgz
https://github.com/jetstack/cert-manager/releases/download/v1.6.1/cmctl-linux-amd64.tar.gz