inherit ttl from zone when modifying records

[dirks]

In Grid Manager there is the option to set the TTL of records (A/CNAME/…) to "Inherit from Auth Zone". This is currently not possible using the associated ansible modules. The current behavior is

• set the ttl parameter to an integer will set an explicit TTL value for that record
• omit the ttl parameter will not modify the TTL value of that record, i.e. it will keep its own value or the inherited one

My usecase would be, setting a lower TTL before pointing a record to a new destination and setting it back to inherit once the changes are done.

I suggest to either add an Parameter like inherit_ttl which if true is mutually exclusive with ttl or to allow setting ttl to the string inherit.