Schema Registry Security Plugin
This is a commercial component of Confluent Platform.
With RBAC enabled, Schema Registry can authenticate incoming requests
and authorize them based on role bindings. This allows schema evolution management to be
restricted to administrative users, while providing users and applications with different
types of access to a subset of subjects for which they are authorized (such as, write
access to relevant subjects for producers, read access for consumers).
The Schema Registry plugin supports authorization for both role-based access control (RBAC) and ACLs, and you
can configure it to use either or both. If both are configured, then requests
are authorized by way of a logical
OR. In other words, a request that is
only authorized by RBAC or ACLs, but not both, is still considered valid.
ACLs are separately available for Kafka and for Schema Registry. If you have ACLs enabled
for Apache Kafka® (to protect topics, consumer groups, and so on), then you
must configure Schema Registry with ACL permissions to read, write, create, and describe
_schemas topic. However, until either ACLs or Role-Based Access Control is
also enabled for Schema Registry, any user can create, alter, and delete Schema Registry subjects.