Andrei Dan 27520cac3b
ILM: parse origination date from index name (#46755) (#47124)
* ILM: parse origination date from index name (#46755)

Introduce the `index.lifecycle.parse_origination_date` setting that
indicates if the origination date should be parsed from the index name.
If set to true an index which doesn't match the expected format (namely
`indexName-{dateFormat}-optional_digits` will fail before being created.
The origination date will be parsed when initialising a lifecycle for an
index and it will be set as the `index.lifecycle.origination_date` for
that index.

A user set value for `index.lifecycle.origination_date` will always
override a possible parsable date from the index name.

(cherry picked from commit c363d27f0210733dad0c307d54fa224a92ddb569)
Signed-off-by: Andrei Dan <andrei.dan@elastic.co>

* Drop usage of Map.of to be java 8 compliant
2019-09-25 21:44:16 +01:00
..