DNS for Service Discovery in HAProxy

Re:DNS for Service Discovery in HAProxy by jlgaddis on Thursday September 28, 2017 @06:21PM (#15361259)

> The idea of using SRV records in general seems foreign even in the ops realm.

I'm not suggesting you use it but (as for how it works in general) look into how Microsoft's Active Directory works. They've had the "service discovery" problem figured out for going on two decades, including preferences for "closer" servers, weighting, and so on.

I'm no MS fan by any means but AD is one MS product that really is awesome.

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Re:DNS for Service Discovery in HAProxy by snuxoll on Thursday September 28, 2017 @09:17PM (#15362068)

And how does MS do it? SRV records, that’s right.

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Re:DNS for Service Discovery in HAProxy by jlgaddis on Thursday September 28, 2017 @11:09PM (#15362472)

Yeah, exactly. That's why I suggested he look into how it works (since "the idea ... seems foreign" to him).

I didn't mean to suggest that they had some revolutionary new unique way of handling service discovery or even that they were the first. I think maybe you misinterpreted or misunderstood my intentions.

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Re:DNS for Service Discovery in HAProxy by snuxoll on Friday September 29, 2017 @12:04AM (#15362638)

It’s all good, I got what you meant :)

LDAP and Kerberos of all implementation are probably the most common use case for SRV records, most people probably don’t even know it. Real shame, in many ways I wish A/AAAA records weren’t even a thing for the vast majority of services (HTTP, I’m looking at you!)

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