elasticsearchHow do I create an Elasticsearch index template?

To create an Elasticsearch index template, you need to define the index pattern and the corresponding mapping.

PUT _template/template_1
{
  "index_patterns": ["*"],
  "settings": {
    "number_of_shards": 1
  },
  "mappings": {
    "_source": {
      "enabled": true
    },
    "properties": {
      "title": {
        "type": "text"
      }
    }
  }
}

This example code creates a template called template_1 that applies to all indices and sets the number of shards to 1. It also adds a mapping for a title field of type text.

The code consists of:

1. PUT _template/template_1: This is the request to create a template called template_1.
2. index_patterns: This is an array containing the index patterns the template should apply to. In this case, it applies to all indices (*).
3. settings: This is an object with settings that should be applied to the indices. In this example, it sets the number of shards to 1.
4. mappings: This is an object with the mapping for the fields in the index. In this example, it adds a mapping for a title field of type text.

For more information, see the official Elasticsearch documentation.

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