private static AccessControlEntry downgradeAllowAllACL(AccessControlEntry entry) {
        return new AccessControlEntry(entry.principal(), entry.host(), AclOperation.READ, entry.permissionType());
    }
Replicate data, configuration, and ACLs between clusters.

 @see MirrorSourceConfig for supported config properties.
connect/mirror/src/main/java/org/apache/kafka/connect/mirror/MirrorSourceConnector.java