As redis cluster node cannot use dns name between instance address，So faild in samaritan also。
I 2021/04/19 09:36:22.734553 samaritan.go:218: Config file: /etc/samaritan.yaml
F 2021/04/19 09:36:22.736316 samaritan.go:241: Failed to init config: invalid Bootstrap.StaticServices[0]: embedded message failed validation | caused by: invalid StaticService.Endpoints[0]: embedded message failed validation | caused by: invalid Endpoint.Address: embedded message failed validation | caused by: invalid Address.Ip: value must be a valid IP address
As redis cluster node cannot use dns name between instance address，So faild in samaritan also。