Update Prometheus Readme on docker hub

[Julien Pivotto]

Hello,

Someone pointed out on twitter that our Docker Hub readme was not
useful to run Prometheus in Docker. They also suggested a snippet from
our documentation to update it.
https://twitter.com/phil_eaton/status/1488895298239877128

After analyzing the claim, the README of the docker image was very
outdated. I have therefore applied the user's advice.

We can think further how we can improve this, but I think it was not
reasonable to have a X years old readme on the docker hub.

This is the new page:

https://hub.docker.com/r/prom/prometheus

Regards,


--
Julien Pivotto
@roidelapluie

[Ben Kochie]

I looked into this a while back and didn't find a good API / tool to automatically push updates.

Maybe things have improved since I last tried.

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[Matthias Rampke]

I propose that we cut most of it, only keep a short paragraph about what Prometheus is, and link to prometheus.io/docs and/or the README for details? That way we only need to update it when things fundamentally change. I don't think people come to Docker Hub to read extended documentation, and following a link is not a burden in that case.

/MR

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[Julien Pivotto]

On 04 Feb 13:12, Matthias Rampke wrote:
> I propose that we cut most of it, only keep a short paragraph about what
> Prometheus is, and link to prometheus.io/docs and/or the README for
> details? That way we only need to update it when things fundamentally
> change. I don't think people come to Docker Hub to read extended
> documentation, and following a link is not a burden in that case.

That's mostly what I did, did you check the last version?

> > https://groups.google.com/d/msgid/prometheus-developers/CABbyFmr_0dg7kP-omQVrzeLnrQFQ%3DuoyCZBTEb_qqU6g8%2BDZkA%40mail.gmail.com
> > <https://groups.google.com/d/msgid/prometheus-developers/CABbyFmr_0dg7kP-omQVrzeLnrQFQ%3DuoyCZBTEb_qqU6g8%2BDZkA%40mail.gmail.com?utm_medium=email&utm_source=footer>
> > .

> >
>
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Julien Pivotto
@roidelapluie

[Matthias Rampke]

Ah, I didn't realize. I would have kept even less information but if this is not too much to keep up to date, I'm happy! Let's see how things develop :)

/MR