Snowflake powered by Redis or Zookeeper
docker pull docker.mirrors.ustc.edu.cn/library/redis
docker run -it -p 6379:6379 redis
docker pull docker.mirrors.ustc.edu.cn/library/zookeeper
docker run -it -p 2181:2181 zookeeper
curl http://localhost:8080/redis/id
curl http://localhost:8080/zk/id