Memcached exporter Multi-target

[Mateus Dubiela]

Hello folks!

We are looking into adding support for multi-target to the memcached exporter. The reasoning here is to be able to use the elasticache service discovery and be able to do the same thing as the redis exporter.

As per the CONTRIBUTING.md asking the mailing list is a sensible thing to do, to have an open discussion and also ask if someone else was working on this.

Thank you!

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[Ben Kochie]

Hey, that would be a great feature to have.

I would start by opening an issue on the exporter repo.

I also have this need, and have been starting the work to refactor the AWS code in Prometheus to support "roles" like the kubernetes_sd_configs so we can add direct support for something like this:

aws_sd_configs:

- role: elasticache

  region: foo

My target is to merge ec2, lightsail, and add elasticache and rds.

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[Mateus Dubiela]

Thanks for the feedback!

I see that you already have opened an issue there, I'll refer to it when we start implementing.

Your solution seem more clean, and something we thought about, for us the problems were that the because changing in prometheus itself might compromise our whole monitoring infra we choose the external service discovery + multi-target exporter route to be safer.

A feedback I would give on implementing the multiple aws service discovery services on the same object, would be that their output and configurations might differ and you might end up having a complex base element.

I'm happy to collaborate on that effort if you want.

Thank you again!

[Mateus Dubiela]

Hi!

The PR is now there, let me know if there is anything that could be improved.

Thanks! Regards

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