monitoring.cluster_uuid setting not being exposed in GET /state API when monitoring.enabled: false is set

[ycombinator]

Observed in 8.0.0 / master as well as 7.6.0.

Interestingly, if the monitoring.enabled setting is left out entirely, the value of monitoring.cluster_uuid does show up in the GET /state API response.

So we need monitoring.enabled: false to behave the same as the monitoring.enabled setting not being specified at all. In either case, if monitoring.cluster_uuid is set, it's value should show up in the GET /state API response.

[elasticmachine]

Pinging @elastic/stack-monitoring (Stack monitoring)

[elasticmachine]

Pinging @elastic/integrations-services (Team:Services)