...
Follow the steps in following link to setup Rancher and k8s cluster:
https://docsonap.onapreadthedocs.orgio/en/beijing/submodules/oom.git/docs/oom_setup_kubernetes_rancher.html
Create a new VM from a ubuntu 16.04 cloud image with 6GB RAM, 5 vCPUs, 300GB storage to host the docker registry
...