ILM Policy for non writing existing index

[ksaha (Koushik Saha)]

Hi,
I am exploring ILM in Elasticsearch. I am having one question, can we apply ILM policy to non writing existing index?

Thanks.

[warkolm (Mark Walkom)]

Do you mean https://www.elastic.co/guide/en/elasticsearch/reference/7.10/ilm-with-existing-indices.html?