max_age

edit
action: rollover
description: >-
  Rollover the index associated with alias 'aliasname', which should be in the
  form of prefix-000001 (or similar), or prefix-YYYY.MM.DD-1.
options:
  name: aliasname
  conditions:
    max_age: 1d

At least one of max_age, max_docs, max_size or any combinations of the three are required as conditions: for the Rollover action.

The maximum age that is allowed before triggering a rollover. It must be nested under conditions: There is no default value. If this condition is specified, it must have a value, or Curator will generate an error.

Ages such as 1d for one day, or 30s for 30 seconds can be used.