If you work with .NET Core the Json format is absolutely the best way because .NET Core offers a package that makes easy to bind the json file into a C# class but let's proceed in order, the json first:
{"Redis": {"Password":"my_super_secret_password","AllowAdmin":true,"Ssl":false,"ConnectTimeout":6000,"ConnectRetry":2,"Database":0,"ServiceName":"my-sentinel",// In case you are using Sentinel"Hosts": [ {"Host":"192.168.0.10","Port":"6379" }, {"Host":"192.168.0.11","Port":"6381" }] },"MaxValueLength"=1024,"PoolSize"=5,"KeyPrefix"="_my_key_prefix_",}