Load all .rego files from a directory and evaluate it via golang rego library

[Abhishek-kumar09]

Hello,
Actually, I am helping my team integrate OPA for our policy evaluation, some initial draft work is here.

If you see, I am successfully able to load a policy file and evaluate it via rego engine, but the complete usecase looks something like this, where there is a "policies" directory where all .rego files will be placed and against the input we would send some rego.Query("...") that will run the rego evaluation engine.

Though there are bunch of resources on OPA CLI, I'm finding trouble implementing it in golang.
How can I read all the rego files from a folder and send it to evaluation engine for processing?

Thanks.

[anderseknert]

Hi there! This what you're looking for, I think:

https://pkg.go.dev/github.com/open-policy-agent/opa/rego#Load

[jpreese]

You may also be able to get some inspiration from Conftest, which works in a similar way: https://github.com/open-policy-agent/conftest/blob/master/policy/engine.go#L65

[Abhishek-kumar09]

Thanks @anderseknert. I'm trying the solution and looking at the reference 😃

[Abhishek-kumar09]

Thanks that works, if someone comes by this: here is the initial setup: meshery/meshkit#311