Index.lifecycle.rollover_alias template settings

Elastic Stack Elasticsearch
1

Hello Team,

We've scenario where we have multiple index with different names (Example: ordercode-domino , ordercode-ecofee , ordercode-chassis), Earlier we have one template for all these index with pattern as (ordercode-*).

Now we want to implement ILM policies to rollover these index.
Single template with pattern (ordercode-*) for all these index will worked ? If yes, then how can it possible in the template settings index.lifecycle.rollover_alias will have the same alias name? It will be rollover using ordercode alias (ordercode-domino-000001, ordercode-domino-000002), But I don't think this will manage the proper data insertion for all the mentioned index.

PUT _template/ordercode-template
{
  "index_patterns": [
    "ordercode-*"
  ],
  "mappings": {
    "dynamic": "true",
    "date_detection": true,
    "dynamic_templates": [
      {
        "strings": {
          "match_mapping_type": "string",
          "mapping": {
            "fields": {
              "keyword": {
                "ignore_above": 256,
                "type": "keyword"
              }
            },
            "type": "text"
          }
        }
      }
    ]
  },
  "settings": {
    "index.lifecycle.name": "7-day-rollover-policy",
    "index.lifecycle.rollover_alias": "ordercode"
  }
}

===============================================
PUT ordercode-domino-000001
{
  "aliases": {
    "ordercode": {
      "is_write_index": true
    }
  }
}

What will happen for ordercode-ecofee , ordercode-chassis index ?

My assumptions is that we have to create separate index_template with dedicated index.lifecycle.rollover_alias for each index individually.
Please let me know, if there is any alternatives for this situation.

Thank you!

2

You will need one for each of ordercode-domino, ordercode-ecofee etc etc.

3

Ok , so there is no way to have single template for all these index.

4

No, because the write alias will all be different for each of them.

5

Thank you so much for the confirmation