Create a "registrar health" dashboard in Cloud.gov logs

[neilmb]

Story

As a registrar team member I want to be able to see metrics for web application health at a glance so that I can be aware of the health of our online applications

Acceptance Criteria

• [ ] Create a single "dashboard" in logs.fr.cloud.gov Kibana that shows a collection of metrics around application health, possibly including:
  • [ ] "successfully logged in" messages graphed over time
  • [ ] "Registry errors" over time
  • [ ] Python traceback errors graphed over time
  • [ ] Requests/responses graphed over time (@source.type:RTR)
• [ ] Consider if we might use a dashboard like this on our log messages to provide any product-level metrics in our ".gov key metrics" spreadsheet: https://docs.google.com/spreadsheets/d/1jEI2Vuy76HnRQoFnV5HbFrKrvlsbU07iWz7wTt2RZDQ/edit#gid=0

Additional Context

This would ease the "monitoring" burden for devs from #1365 to have just one place to look for most of the Kibana query information.

Issue Links

No response

[neilmb]

Draft version of this here: https://logs.fr.cloud.gov/goto/4384d6cd41ff64608801badf11d6e70b