Use lazy attribute evaluation for the fqdn references

[fletchowns]

In order to be compatible with cookbooks that set the hostname during a converge like the system cookbook, can we change the references to node['fqdn'] to use lazy attribute evaluation? See this issue for some background info.

I had to use this the following as a workaround:

some_cert = certificate_manage "wildcard" do
  cert_file lazy { "#{node['fqdn']}.pem" }
  key_file lazy { "#{node['fqdn']}.key" }
  chain_file lazy { "#{node['fqdn']}-bundle.crt" }
end

[fletchowns]

This would also fix issue #35.

[atomic-penguin]

I am hesitant to fix something in the LWRP which you can work around when calling the resource.

This lazy evaluation seems like something that is probably not widely needed by most people using the cookbook. It is also a change that could impact compatibility with older versions of Chef.

[fletchowns]

I ran into the issue pretty quickly as a newcomer to chef, thought it might be helpful for others. Didn't realize there's a risk of impacting compatibility with older versions of Chef. Maybe just #35 then?

[atomic-penguin]

Yeah, a documentation update would be apropos. Care to draft it and send a pull request?