ilm_sample.md

PUT _ilm/policy/web_rollover
{
  "policy": {
    "phases": {
      "hot": {                      
        "actions": {
          "rollover": {
            "max_docs": 2
          }
        }
      }
    }
  }
}


PUT _template/my_template
{
  "index_patterns": ["web-*"],                 
  "settings": {
    "number_of_shards": 1,
    "number_of_replicas": 1,
    "index.lifecycle.name": "web_rollover",      
    "index.lifecycle.rollover_alias": "web"    
  }
}


# making alias at the index creation timing.
# https://www.elastic.co/guide/en/elasticsearch/reference/6.8/indices-aliases.html#alias-index-creation

PUT web-reindex
{
  "aliases": {
    "web": {
      "is_write_index": true
    }
  }
}



POST web-reindex-001/_doc/1
{
  "name" : "a"
}



GET web-reindex-001/_ilm/explain