bootstrap: "{\"xds_servers\": [{\"server_uri\":\"xds.example.com:443\", \"channel_creds\":[{\"type\": \"fake\"}]}]}"
actions {
  start_watch {
    resource_type {
      endpoint {}
    }
    resource_name: "endpoint1"
  }
}
actions {
  read_message_from_client {
    stream_id {
      ads {}
    }
    ok: true
  }
}
actions {
  send_message_to_client {
    stream_id {
      ads {}
    }
    response {
      version_info: "1"
      nonce: "A"
      type_url: "type.googleapis.com/envoy.config.endpoint.v3.ClusterLoadAssignment"
      resources {
        [type.googleapis.com/envoy.config.endpoint.v3.ClusterLoadAssignment] {
          cluster_name: "endpoint1"
          endpoints {
            locality {
              region: "region1"
              zone: "zone1"
              sub_zone: "sub_zone1"
            }
            load_balancing_weight {
              value: 1
            }
            lb_endpoints {
              load_balancing_weight {
                value: 1
              }
              endpoint {
                address {
                  socket_address {
                    address: "127.0.0.1"
                    port_value: 443
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}
