Upgrading a etcd Cluster from Version 2.3 to Version 3.0 on CoreOS Container Linux
The recent 1.6 release of Kubernetes strongly encourages switching etcd to etcd3. However, if you have an existing etcd2 cluster, the documentation CoreOS provides on upgrading it is less than helpful. Although it documents the upgrade procedure, it doesn’t tell you how to actually switch from running etcd2 to etcd3 – simply saying to drop in the new etcd3 binary in...
