Delete ElasticSearch indexes which matches a specific pattern

Question

How can one use ElasticSearch curator to delete old index which matches a specific pattern. Using curator like this will delete all indexes rather than the ones matching a pattern:

curator --host <ip address> delete indices --time-unit days --older-than 45 --timestring '%Y%m%d'

Assuming one wants to delete indexes from 45 days ago which matches sample_index_*, how to go about it?

Answer 1

Try this:

curator --host delete indices --time-unit days --older-than 45 --timestring '%Y%m%d' --prefix sample_

In addition to the prefix option, you can also use suffix and regex