Filtered policies support for casbin redis adapter

[sujatapatnaik52]

Hi,

I am using the rbac_with_deny_model for my usecase with casbin's redis adapter - https://github.com/casbin/redis-adapter. I have the following questions:

1. When the records are added via the casbin enforcer, does it store them all in memory as well?
2. If the answer to number 1 is yes, then I read about performace and at some point the policies might grow which will cause the the enforce() calls to take more time. I can add another instance of casbin to handle this but I was looking to use policy subset loading feature. Apparently this does not exist for redis-adapter yet. Is there a way to add it or should I use only those backend storage libraries that support this?

Thank you.

[casbin-bot]

@tangyang9464 @JalinWang

[casbin-bot]

@tangyang9464 @JalinWang @imp2002

[hsluoyz]

@JalinWang plz implement FilteredAdapter interface

/cc @tangyang9464

[casbin-bot]

@tangyang9464 @JalinWang @imp2002

[sujatapatnaik52]

Hi, can you also answer the question about the policies being stored in-memory? and now that you will add filtered policy loading option for redis, do I have to create a new enforcer with filtered policies every time I want to check the permissions?

[JalinWang]

@sujatapatnaik52 Hi~ Thanks for concerning about Casbin.

1. When the records are added via the casbin enforcer, does it store them all in memory as well?

For this question, the answer is true.

Apparently this does not exist for redis-adapter yet.

I'll make a PR to support filtering in days.

do I have to create a new enforcer with filtered policies every time I want to check the permissions?

No, you don't. You can divide enforcers by domains or use watcher to keep them synced.