Migration of data from cluster to server

Elastic Stack Elasticsearch
1

Hello.
Here is my needs:
i want move all indexes from cluster to single server ( to cleanup cluster ),
is it possible to add this standalone server to cluster for migration ? and how to specify that cluster should move all indexes/shards to this standalone ?

Thank you.

2

The easiest way might be to use snapshot and restore.

3

Unfortunately right now i don't have free space on servers or any other storage for backup.

4

Depending on the data volumes involved, you might be able to take the snapshot to S3 and restore it from there.