[Docs] Monitoring settings doesn't mention service account tokens

[jportner]

The docs for Monitoring settings don't mention service account tokens.

In #102121, starting with the 7.15 release we added the ability to configure a service account token using elasticsearch.serviceAccountToken. By extension, you can configure a service account token for a separate Monitoring cluster using the monitoring.ui.elasticsearch.serviceAccountToken setting. The docs should reflect this.

[elasticmachine]

Pinging @elastic/infra-monitoring-ui (Team:Infra Monitoring UI)

[neptunian]

@jportner or @elastic/kibana-docs Should elasticsearch.serviceAccountToken still be marked as beta in current docs? I'm not sure how that's determined as I don't see in the docs where the corresponding ES API is marked as beta. I assume monitoring.ui.elasticsearch.serviceAccountToken should be the same.

[jportner]

@jportner or @elastic/kibana-docs Should elasticsearch.serviceAccountToken still be marked as beta in current docs? I'm not sure how that's determined as I don't see in the docs where the corresponding ES API is marked as beta. I assume monitoring.ui.elasticsearch.serviceAccountToken should be the same.

Great question.

We initially marked this setting as beta in our docs when we added this setting in 7.15 via #102121, here was our reasoning at the time:
Note I am marking this as beta in the docs because the underlying ES APIs are marked as beta. This gives us the necessary flexibility to make a breaking change if required (although I do not expect any at this time)

It looks like the API is marked as beta in the 7.13 docs, but it is not marked as beta in the 7.14 docs.

I will submit a PR to update our docs accordingly.

Edit: PR is here #128420