What is the package's functionality within Big Bang? What is the general architecture of the package?
Kyverno policies is a collection of rules. Each rule consists of a match declaration, an optional exclude declaration, and one of a validate, mutate, generate, or verifyImages declaration. Each rule can contain only a single validate, mutate, generate, or verifyImages child declaration. In Big Bang, Kyverno policies were pulled from the Kyverno Policy Library and converted to a Helm template for flexibility.
Does the package have high availability/clustering? If so, how does it function/what does it require? Note: you may find this in the architecture doc within Big Bang.
Kyverno contains several different capabilities, decoupled into separate controllers, and each controller runs in its own Kubernetes Deployment. Installing Kyverno in a highly available manner therefore requires additional replicas for each of the chosen controllers.