[libbeat] add_nomad_metadata - Typo in indexer name for 'allocation_uid'

[andrewkroh]

The name of the indexer should be allocation_uuid. That is how it is shown in the documentation at https://www.elastic.co/guide/en/beats/heartbeat/7.16/add-nomad-metadata.html#_fields_2.

The error that you get when trying to use the documented config is:

{
  "log.level": "warn",
  "@timestamp": "2022-01-07T14:52:37.228Z",
  "log.origin": {
    "file.name": "add_nomad_metadata/indexers.go",
    "file.line": 55
  },
  "message": "Unable to find indexing plugin allocation_uuid",
  "service.name": "filebeat",
  "ecs.version": "1.6.0"
}

The affected code is:

beats/x-pack/libbeat/processors/add_nomad_metadata/indexers.go

Line 18 in a1617c7

AllocationUUIDIndexerName = "allocation_uid"

[elasticmachine]

Pinging @elastic/integrations (Team:Integrations)

[botelastic]

Hi!
We just realized that we haven't looked into this issue in a while. We're sorry!

We're labeling this issue as Stale to make it hit our filters and make sure we get back to it as soon as possible. In the meantime, it'd be extremely helpful if you could take a look at it as well and confirm its relevance. A simple comment with a nice emoji will be enough :+1.
Thank you for your contribution!

[andrewkroh]

I just ran into this again. Re-opening.

[botelastic]

Hi!
We just realized that we haven't looked into this issue in a while. We're sorry!

We're labeling this issue as Stale to make it hit our filters and make sure we get back to it as soon as possible. In the meantime, it'd be extremely helpful if you could take a look at it as well and confirm its relevance. A simple comment with a nice emoji will be enough :+1.
Thank you for your contribution!