RedisCache - Add options with key prefix

[fenzad]

Is there an existing issue for this?

• I have searched the existing issues

Is your feature request related to a problem? Please describe the problem.

In presence of a single instance of Redis, I may need to use a multi-tenant environment. Meaning multiple and different applications using the same Redis instance. In this context I might set all keys of each single application with a predetermined prefix.

Unfortunately, the actual extension "Microsoft.Extensions.Caching.StackExchangeRedis" not provide to set a prefix for the application.

Describe the solution you'd like

Add a option "KeyPrefix" in the class: https://github.com/dotnet/aspnetcore/blob/main/src/Caching/StackExchangeRedis/src/RedisCacheOptions.cs

Manage this option in the class:
https://github.com/dotnet/aspnetcore/blob/main/src/Caching/StackExchangeRedis/src/RedisCache.cs
using the extension WithKeyPrefix of IDatabase (https://github.com/StackExchange/StackExchange.Redis/blob/main/src/StackExchange.Redis/KeyspaceIsolation/DatabaseExtension.cs).

Additional context

No response

[adityamandaleeka]

Does InstanceName provide the functionality you're looking for?

https://github.com/dotnet/aspnetcore/blob/main/src/Caching/StackExchangeRedis/src/RedisCacheOptions.cs#L36

We should probably update the comment here to explain what's going on, but it looks like we always prefix the key with InstanceName.

Hi @fenzad. We have added the "Needs: Author Feedback" label to this issue, which indicates that we have an open question for you before we can take further action. This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.

[fenzad]

Does InstanceName provide the functionality you're looking for?

https://github.com/dotnet/aspnetcore/blob/main/src/Caching/StackExchangeRedis/src/RedisCacheOptions.cs#L36

We should probably update the comment here to explain what's going on, but it looks like we always prefix the key with InstanceName.

Rigth! I have looked the source code and InstanceName is exactly the required functionality.