Improve /metrics endpoint

[onedr0p]

Not sure what to gather but maybe there some ideas with the other webhook providers.

[jimmy-ungerman]

Looks like a good starting point https://github.com/stackitcloud/external-dns-stackit-webhook/tree/main/pkg/metrics

[onedr0p]

I implemented the structure, but it needs some work to add more metrics. It only has Go defaults being exported.

[kashalls]

I implemented the structure, but it needs some work to add more metrics. It only has Go defaults being exported.

Probably unifi 404's 405's 401's etc... Records updated

[kashalls]

I'll eventually pick this issue up, but I am unsure how to handle metrics. Might wait for a day to have onedr0p help me with this.

[jimmy-ungerman]

I'm going to start working on this but want to get a feel for the metrics that we want to capture.

My thought is:

• Records created by the webhook
• Number of requests grouped by status code
• Response time? Not sure if this one is completely necessary

[kashalls]

* Records created by the webhook
* Number of requests grouped by status code
* Response time? Not sure if this one is completely necessary

These should be good enough to get started.

Some fun ones would be records created / updated / removed by the webhook.
How often records are being changed?

[kashalls]

Hey @jimmy-ungerman, I wanted to check in and see how it was progressing. Do you need any help?

[jimmy-ungerman]

Oh we're trying lol. I'm away for the holiday weekend, but plan on looking even more next week. First time trying to implement metrics lol

[jimmy-ungerman]

Going to test this commit here for a basic "records count" metric jimmy-ungerman@00e344c