This is a helper utility for the Stackable Operator for OPA.
The sole purpose of the OPA Bundle Builder is to convert user created ConfigMaps containing Rego rules into bundles (tar.gz files) and make them available as an HTTP endpoint. The Bundle Builder runs in a side container of the OPA Pod managed by the Stackable Operator for OPA as a simple HTTP server that OPA is querying regularly (every 20 to 30 seconds) for updates.
This allows users to add, update or delete Rego rules on-the-fly in Kubernetes.
NOTE: Kubernetes limits the size of ConfigMaps to 1MB. Users have to take this limit into consideration when manging policy rules.
Only ConfigMaps labeled with opa.stackable.tech/bundle: "true" are considered by the builder when updating bundles. The name of
the data entries in the ConfigMap are used as file names when storing the rules in the bundle.
NOTE: Currently it is the user's responsibility to make sure these names do not collide (as they will override each other).