circuit-breaker

Hey, I found a little problem. if I configure a data-id without file extensions in extension-configs , but config content type is yaml. then there is a proble, configuration is invalid. because the configuration is parsed by properties. so I want to add fileExtension field in NacosConfigProperties.Config.

我发现一个小问题, 如果在extension-configs里的data-id没有带文件后缀,并且配置内容格式是yaml或者其他类型,那么这个配置就

Issue Description

Type: bug report or feature request

抱歉再问下，当前在GrpcServer注册SentinelGrpcServerIntercepter，想

1. 定制拦截器的资源Entry；
2. 动态定制限流的qps；
   这个可以怎么做呢
   看到该Intercepter源码里保护的资源是MethodName

Describe the bug

A clear and concise description of the bug.
when my asp.net core 3.1 app host in IIS, the url console is 127.0.0.1，so，when i have Multiple instances，the instances name will be the same,such as 127.0.0.1:svaname:port，eureka server think they are a single instance.
i print the console in source code：
![image](https://user-images.githubusercontent.com/6300834/101754289-8ad92

Add a sample that shows how to add a custom endpoint using the management endpoints library.

describe issue

• config impl
• registry impl
• common
• adaptor opensource
• gov impl

Lack of unit tests

how to solve

Refer to the example （governance-impl /test）

Improve corevage to meet 100%