How to do persistence for parameter flow rules and cluster config

[Wizzercn]

Issue Description

Type: feature request

Describe what happened (or what feature you want)

已经对流控规则、降级规则、系统规则、授权规则，进行读写持久化，不知道集群流控的配置和热点规则，如何进行持久化？

How to do persistence for parameter flow rules and cluster config?

Describe what you expected to happen

源码见这里 (The source code is here)： https://github.com/nutzam/nutzboot/blob/dev/nutzboot-starter/nutzboot-starter-sentinel-dubbo/src/main/java/org/nutz/boot/starter/sentinel/SentinelStarter.java

Tell us your environment

Sentinel 1.4.1

[sczyh30]

Hi, we support dynamic configuration for parameter flow rules and cluster config:

• ParamFlowRuleManager for client side parameter flow rule, ClusterParamFlowRuleManager for server side rule
• ClusterStateManager for cluster state (mode)
• ClusterClientConfig for token client assign and config
• ClusterServerConfig for token server assign and config (e.g. namespace set, flow related config)

For cluster embedded mode, here is a demo: https://github.com/alibaba/Sentinel/tree/master/sentinel-demo/sentinel-demo-cluster/sentinel-demo-cluster-embedded

[Wizzercn]

I want to store the cluster configuration info in redis,and from redis,how do it?

[Wizzercn]

FlowRuleManager.register2Property(redisDataSource.getProperty());
WritableDataSourceRegistry.registerFlowDataSource(wds);

for example FlowRule's read and write sources can be changed. How do you do Cluster ?

[sczyh30]

For reading configuration, you could register dynamic data sources. For publishing configurations you might need to refactor the Sentinel dashboard.