Monitoring Leases

[eugenedavis-tomtom]

It would be good to be able to track the age (at least of the oldest lease) and total number of leases for some/or all engines. For example, monitoring the leases for a role/connection in a dynamic database secret engine. Here being able to see the count of leases or the age of the oldest lease would help indicate if something has gone wrong with the engine, e.g. old leases aren't getting cleaned up due to an improper revocation statement.