Custom Labels support for UME

[chomipi88]

Issue Type

Missing content for an existing feature

Links to Affected Docs

https://www.astronomer.io/docs/astro/export-metrics

The Issue or Context

https://github.com/astronomer/astro/issues/21459 https://github.com/astronomer/astro/pull/22505 https://github.com/astronomer/astro/pull/22516

Fix or Proposed Change

• Customers can configure custom labels to be exported with their metrics
• If they use the same label name as a default label (eg. instance), the default label will be overwritten with the custom label value
• Hosted Customers can configure custom labels if configuring UME using Environment Manager, and append Deployment specific custom labels by adding configuration at the Deployment level

Additional Notes

To be released on August 5th

Required Reviewers

bote795, chomipi88