I would like to run multiple Kubernetes clusters on bare-metal, but I would hate to waste
3 physical servers per cluster for an etcd cluster. Is it possible to use one etcd cluster for multiple Kubernetes clusters? Eg. creating one etcd cluster with Rancher and then add it to the other Kubernetes clusters with the external etcd option? Maybe I missed something but it is not obvious for me if it is possible or not. If it is possible is there anything agains it? Are there any cons?