tl;dr: switch the Device Analytics metrics endpoint from /admin/metrics to /metrics
Details:
Our metrics and dashboarding infrastructure needs a consistent endpoint from which to pull metrics from each service. Per Slack discussion, this should be /metrics.
Also per that discussion, these metrics do not need to be publicly accessible. That means it is okay that all the various AQS 2.0 services expose metrics information (only) under /metrics, rather than distinct endpoints like (for example) /metrics/device-analytics, /metrics/page-analytics, etc. Our metrics infrastructure will make calls to the /metrics endpoint for each service using a distinct internal service name and port number, so disambiguation is not an issue.
Device Analytics currently exposes metrics under the endpoint:
/admin/metrics
Switch this to:
/metrics