CDN conventions

[markrendle]

Area(s)

area:new

Is your change request related to a problem? Please describe.

I'm working on the Azure Event Hubs receiver in Collector Contrib to translate Azure Resource Log property names and Metric to SemConv. One of the Resource Log types comes from Azure Front Door's CDN Access Log, and includes two CDN-specific attributes:

• pop: the Point of Presence, e.g. LON
• cacheStatus: e.g. HIT or MISS

If there are other CDN solutions that can be monitored via a Collector one might expect these to be common attributes across multiple implementations.

Describe the solution you'd like

A top-level cdn namespace for CDN attributes, with e.g.:

• cdn.pop or cdn.point_of_presence for the POP
• cdn.cache_status with HIT or MISS as possible values

Describe alternatives you've considered

I considered using cloud.region for the pop attributes, but

1. It's not really an accurate name for a POP
2. It doesn't provide a place for the cacheStatus

Additional context

No response

[joaopgrassi]

Hard to draw a line, but I wonder if we should establish a working group for this. Seems broad enough 🤔