etcd/hack/tls-setup/config/req-csr.json

{
  "CN": "etcd",
  "hosts": [
    "localhost",
    "127.0.0.1",
    "9.145.89.120",
    "9.145.89.173",
    "9.145.89.225"
  ],
  "key": {
    "algo": "rsa",
    "size": 2048
  },
  "names": [
    {
      "O": "autogenerated",
      "OU": "etcd cluster",
      "L": "the internet"
    }
  ]
}