I was just wondering, why it is useful to run etcd cluster inside Kubernetes, when Kubernetes itself depends on etcd.
It just does not make sense to me, as if I have HA Kube, I am also forced to have HA etcd outside. Hence to reason to install it again inside...
I have an external ETCD that manages my k8s HA cluster and im not letting any developer apps near it. I would be too concerned about something going wrong and breaking the k8s cluster. It is also a fixed size at 3 which works well for the cluster size with its requirements. If the developers need a key/value store for their db and want etcd, this would be a great way to make one in the cluster for the applications. With it being statefulsets, its scalable.