func (c *ConfigInfoRetriever) Region() string {
	return c.region
}
Region gets server's region from config
package cluster
import "github.com/topfreegames/pitaya/config"
type ConfigInfoRetriever struct {
	region string
}
func NewConfigInfoRetriever(c *config.Config) *ConfigInfoRetriever {
	return &ConfigInfoRetriever{
		region: c.GetString("pitaya.cluster.info.region"),
	}
}