I'm trying to upgrade our ELK stack from 1.x > 5.x following the re-index from remote instructions. I'm not sure of how to export a list of the indices that I need to create and then import that list into the new instance. I've created a list of indices using this command, both with "pretty," and without, but I'm not sure which file format to use as well as what to next do with that file.
The create index instructions don't go into how to create more than one at a time, and the bulk instructions only refer to creating/indexing documents, not creating the indices themselves. Any assistance on how to best follow the upgrade instructions would be appreciated.
I apparently don't have enough reputation to link the "create index" and "bulk" instructions, so apologies for that.