Previously, the bundle plugin did not expose a mechanism for callers to
inspect the status of bundle downloads. With these changes, callers can
register for notifications when bundle updates are performed. This will
allow OPA to report status to remote HTTP servers.
Signed-off-by: Torin Sandall <torinsandall@gmail.com>
Previously, policies and data had to be pushed into OPA via the REST API
or loaded via command line arguments at startup.
With these changes, OPA can now be configured to pull down bundles of
policy and data from remote HTTP servers. When a bundle is downloaded
successfully, the policies and data are loaded out of the bundle file
and inserted into storage.