2.7.6. 服务发现 [1]

Rather than specifying a static configuration, use an existing etcd cluster to bootstrap a new one. This process is called “discovery”.

There two methods that can be used for discovery:

1. etcd discovery service
2. DNS SRV records
[1]https://github.com/etcd-io/etcd/blob/master/Documentation/dev-internal/discovery_protocol.md