support for multiple sets of custom holidays

[mapshen]

The use case is to accommodate the needs of different organizations, which follow different holiday schedules.

I would imagine the configs go like this:

custom_holidays:
  - name: test
    region: us
    organization: A
    schedule:
    - date: "2019-12-17"
      description: "Some day this year only"

Other than the mandatory schedule field, the others are free-form key-value pairs (containing at least 1 pair), which translate to the labels of the is_holiday metric. Perhaps we can make name mandatory as well.

@allangood Do you think this is can be something we add?

[allangood]

Hi @mapshen,

first of all, thank you for you interest in this code and for your help! :)

Yes, this is totally possible. I didn't make any field other than the date mandatory, to make things simple/easy.
I still don't know if making the name mandatory is really important. Could you help me to understand better your request to make it mandatory?

Regards.

[mapshen]

It doesn't have to be but there should be a key-value pair at least (in addition to schedule) so that we can tell different is_holiday metrics apart.