index lifecycle guide added

[govegito]

Description

Index life cycle guide created

Issues Resolved

Guide] Index Lifecycle #428

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[dblock]

Please fix DCO to start @govegito (git commit --amend -s).

[govegito]

@dblock DCO done ✅

[reta]

@dblock DCO done ✅

Hm ... @govegito the check is still failing :(

[dblock]

@govegito let us know if you need any help? All the commits need to have DCO. One way to fix it is this:

git checkout fix_issue_428_backup # make a backup branch just in case ;)
git checkout fix_issue_428
git reset HEAD~4 # rewinds your commits without deleting the changes
git add .
git commit -s -m "..." # commit with proper signature
git push origin fix_issue_428 -f # force push an update

[govegito]

@dblock @reta DCO check is passing now.

[reta]

@govegito this snippet it not valid for main branch since it should be using Apache HttpClient 5 APIs, I think the best option is to retarget the pull request to 2.x branch and than have another pull request for main.

[govegito]

Understood, retargeting it to 2.x branch.

[reta]

Suggested change

	This guide covers OpenSearch Java Client API actions for Index Lifecycle. You'll learn how to create, read, update, and delete indices in your OpenSearch cluster. We will also leverage index templates to create default settings and mappings for indices of certain patterns.
	This guide covers OpenSearch Java Client API actions for Index Lifecycle. You'll learn how to create, update, and delete indices in your OpenSearch cluster as well as got to index, search and delete the data within the index.

[reta]

There is no index template in the guide.

[govegito]

According to the description of the issue Java guide similar to ruby guide has to be made, and in this ruby guide there were only crud operations.
If template needs to be added in the guide please help me with some proper documentation meanwhile i followed this doc for creating this guide.

[dblock]

@govegito Want to finish this?

[VachaShah]

These samples are added to USER_GUIDE when the documentation was updated. Closing this PR. Thanks @govegito!