# ILM Index Lifecycle

**URL:** <https://discuss.elastic.co/t/ilm-index-lifecycle/282367>\
**Category:** Logstash\
**Tags:** ilm-index-lifecycle-management\
**Created:** [August 24, 2021, 2:49pm UTC](https://discuss.elastic.co/t/ilm-index-lifecycle/282367 "2021-08-24T14:49:20Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![selin](https://avatars.discourse-cdn.com/v4/letter/s/9de053/32.png) [@selin](https://discuss.elastic.co/u/selin)\
**Post date:** [August 24, 2021, 2:49pm UTC](https://discuss.elastic.co/t/ilm-index-lifecycle/282367/1 "2021-08-24T14:49:20Z")

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Hi can i know if ilm\_rollover\_alias not speificed, will it take index name as alias?

```auto
      index => "my_index"
      ilm_pattern => "{now/d{yyyyMMdd}}-00001"

```

so it will be  
my\_index-20210823-00001  
?

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<div class="post-metadata">

**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\
**Post date:** [August 24, 2021, 3:26pm UTC](https://discuss.elastic.co/t/ilm-index-lifecycle/282367/2 "2021-08-24T15:26:57Z")

</div>

If ILM is enabled then the index option is ignored and the default [ilm\_rollover\_alias](https://www.elastic.co/guide/en/logstash/current/plugins-outputs-elasticsearch.html#plugins-outputs-elasticsearch-ilm_rollover_alias) is logstash/ecs-logstash.

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<div class="post-metadata">

**Author:** ![selin](https://avatars.discourse-cdn.com/v4/letter/s/9de053/32.png) [@selin](https://discuss.elastic.co/u/selin)\
**Post date:** [August 25, 2021, 4:23am UTC](https://discuss.elastic.co/t/ilm-index-lifecycle/282367/3 "2021-08-25T04:23:37Z")

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can we use index tempalte to group index into 1 and use a pattern to att date at end ?

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [September 22, 2021, 4:23am UTC](https://discuss.elastic.co/t/ilm-index-lifecycle/282367/4 "2021-09-22T04:23:58Z")

</div>

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