export cache package, add client interceptor customization

core/stores/cache/config.go

@@ -0,0 +1,12 @@
+package cache
+
+import "github.com/tal-tech/go-zero/core/stores/redis"
+
+type (
+	ClusterConf []NodeConf
+
+	NodeConf struct {
+		redis.RedisConf
+		Weight int `json:",default=100"`
+	}
+)