go-zero/example/bookstore/rpc/check/etc/check.yaml

Name: check.rpc
ListenOn: 127.0.0.1:8081
Etcd:
  Hosts:
  - 127.0.0.1:2379
  Key: check.rpc
DataSource: root:@tcp(localhost:3306)/gozero
Table: book
Cache:
  - Host: localhost:6379