On Wed, Dec 15, 2010 at 15:02, Andrew Forgue <[email protected]> wrote:
> On Dec 14, 6:15 pm, Daniel Pittman <[email protected]> wrote:
>> On Wed, Dec 15, 2010 at 03:10, Andrew Forgue <[email protected]> wrote:
>> > On Dec 13, 11:27 pm, Daniel Pittman <[email protected]> wrote:
>> >> > diff --git a/lib/puppet/network/resolver.rb
>> >> > b/lib/puppet/network/resolver.rb
>> >> > new file mode 100644
>> >> > index 0000000..9165efb
>> >> > --- /dev/null
>> >> > +++ b/lib/puppet/network/resolver.rb
>> >> [...]
>> >> > + Puppet.debug "Searching for SRV records for #{hostname}"
>> >> > + rrs = resolver.getresources(hostname,
>> >> > Resolv::DNS::Resource::IN::SRV)
>>
>> >> Doesn't this resolve the label 'example.com', where you wanted
>> >> '_puppet._tcp.example.com'?
[...]
> So something like a config variable called "use_srv_records" which
> defaults to true
True or false as consensus says: I like true, but I am not religious about it.
> as well as "srv_record" that defaults to _puppet._tcp.$domain.
> Would that be better? I think it would.
*nod* I would be very happy with that: it means that there are two
sensible auto-discovery methods for Puppet clients starting on a
network: DNS-SD, and the puppet.$domain CNAME. Both pretty much
harmless, so far as I can tell, if they are not used.
If others felt really strongly I would also support doing DNS-SD
against 'puppet.$domain', but I don't think that is really a good
value-added choice.
> This way you can turn on/off the SRV functionality as well as
> override the default domain lookup. If the _puppet._tcp.$domain is
> NXDOMAIN, it falls back to whatever server is. Is that reasonable?
Absolutely. Thank you very much for doing this, by the way: I think
adding DNS-SD is a great feature, and will be very pleased to see it
come along. It makes big deployments so much easier to manage if the
clients can automatically discover and work with any number of puppet
master instances without extra configuration.
Regards,
Daniel
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