Show when metrics are missing to report outages from your devices

[aholmes]

If you have devices that periodically aren't reporting metrics, or Hubitat is not returning them through the Maker API, or prometheus or hubitat2prom go down, you might want to chart when these outages occur. You can do this with either the absent or absent_over_time functions. However, these functions do not pass through label values and so a more creative solution may be needed.

Here are some possibilities on Stack Overflow.

Here's what they look like for me.