Add REST API for SD.

[shunliz]

Proposal

Use case. Why is this important?
As a third-party system, i need register/deregister my endpoint to prometheus by REST API and be scraped. I don't like existing SDs as they are not flexible.

Not sure if it's a good idea, any suggestion?

Nice to have' is not a good use case :)

[jojohappy]

You can look this document
https://github.com/prometheus/prometheus/tree/master/documentation/examples/custom-sd

It use file_sd for SD

[brian-brazil]

We don't want to invent new SDs in Prometheus (there's enough in the world already), and what you would suggest would do so and not work in a HA setup. If Consul isn't to your tastes (which is what we'd usually suggest here), I'd suggest using file_sd to build something.

[krasi-georgiev]

one big disadvantage in your proposal is that all your targets need to know the ip of the Prometheus server which might work in a small setup,but a big disadvantage at scale.

Can you share more details about your setup?

[shunliz]

Thanks jojohappy, brian-brazil. Using the custom-sd is way to solve my problem, but I have many vms or docker created dynamically, and each time a vm or docker created, need to restart prometheus. I'm not sure if it will lose some metrics and if there is any problems that restart prometheus frequently.

Thanks krasi-georgiev. I just have a hybrid cloud controller which will need to monitor the vms or dockers created by the hybrid cloud controller in different cloud resource provider.

[jojohappy]

Prometheus has provide api to reload configuration, It will not need to restart Prometheus and impact on scrape process.

[shunliz]

Thansk all for the comments and replys.
I think i can close this question.

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.