CoreOS Test Drive
If you follow the CoreOS documentation and try to get a Vagrant cluster up and running the etcd cluster is not created by default.
After cloning the Vagrant CoreOS repo, cd into the cluster folder and run vagrant up. This will start 3 core-os clusters numbered core-01 to core-03. You can ssh into them by running vagrant ssh core-01
In my case the IP addresses of those coreos clusters are:
- core-01: 192.168.65.2
- core-02: 192.168.65.3
- core-03: 192.168.65.4