Support individual health check endpoints

[mkrueger-sabio]

I implemented the test but can't get them running locally. Don't know how to set them up.

[michaelklishin]

Thank you.

I would agree to add these as undocumented. They have been deprecated and replaced with more focussed health checks which IIRC now have their HTTP API equivalents in 3.8. Ideally we should support just those endpoints.

We (Team RabbitMQ) certainly don't want to promote either of these endpoints. They are either too simplistic (the aliveness check) or too intrusive (the original health check), and do not provide a lot of context in the response.

[michaelklishin]

Also, I think these can go into a single file, e.g. healthchecks sounds reasonable to me.

[michaelklishin]

I'd be happy to take a look at adding support for rabbitmq/rabbitmq-management#854 to this client. Thank you for the reminder 👍

[mkrueger-sabio]

Ah, ok, I didn't know that there was a change in the api. In this case, I will drop this pr and implement the new checks, unless you want it to be merged.

[michaelklishin]

I will QA this today. Thank you very much for picking this up and putting in all the effort to re-do it around the new API endpoints!

[michaelklishin]

This is definitely on the right track. We have some room to make it even better and easier to use, though.

[michaelklishin]

I am finishing this today.

[mkrueger-sabio]

Yes, thanks, that would be nice. I have not the time at the moment to work on this properly.

[michaelklishin]

@mkrueger-sabio I have merged an updated version after some suggestions from other RabbitMQ engineers. I hope this modified API looks reasonable to you.

[mkrueger-sabio]

@michaelklishin Yes, I'm fine with that. Thanks.