So sorry!  That's my bad for trying to recall all of the necessary options for the `age` filtertype off the top of my head.

Add `"direction":"older"` into the filter, like this:

curator_cli --host show_indices --filter_list '{"filtertype":"age","source":"name","timestring":"%Y.%m.%d","unit":"days","unit_count":30,"direction":"older"}'

or in the yaml file:

    action: delete_indices
    description: Delete indices with %Y.%m.%d in the name where that date is older than 30 days
      ignore_empty_list: True
      - filtertype: age
        source: name
        timestring: '%Y.%m.%d'
        unit: days
        unit_count: 30
        direction: older

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