Right, that works -- but I want to get the IP by using the scope.lookup var
and not hardcode an IP in the template. I know both the
"scope.lookupvar('ipaddress_'+interface)" and "@int_name =
Resolv.new.getname <ip>" works, but I'm struggling on how to send the IP
gained from the lookupvar to the Resolv.new.getname function inside the
template.. It should just be a syntax issue, but I'm new to ruby/erb so
I'm not sure the correct way to pass a generated string to a function
within the same structure...
On Wednesday, November 25, 2015 at 3:10:55 PM UTC-6, denmat wrote:
>
> Sorry, rushing around on trains. Try this:
>
> irb(main):002:0> require 'resolv'
> => true
> irb(main):003:0> Resolv.new.getname('127.0.0.1')
> => "localhost"
>
> On Thu, Nov 26, 2015 at 7:54 AM, Denmat <[email protected] <javascript:>>
> wrote:
>
>> Sorry, ignore my suggestion. That won't work.
>>
>> On 26 Nov 2015, at 06:57, Dayton Jones <[email protected] <javascript:>>
>> wrote:
>>
>> I'm writing a template to populate a file - easy enough...
>>
>> What I want is to to grab the list of interfaces, get the ip assigned to
>> that interface and then do a lookup of the ip to get the dns name.
>>
>> I'm able to get the interfaces/ips just fine, but can't figure out how to
>> then pass the IP to the function to do the lookup. Any help is greatly
>> appreciated...
>>
>> =======================
>> start ERB
>>
>> <% scope.lookupvar('interfaces').split(",").each do |interface| %>
>> <% @int_ip = scope.lookupvar('ipaddress_'+interface) %>
>> <% @int_name = Resolv.new.getname @int_ip %>
>> ...
>> <% end %>
>>
>> end ERB
>> ========================
>>
>> @int_ip gets popluated and I can manipulate it as needed, but how do I
>> properly pass it to 'Resolv.new.getname' to set the int_name string?
>>
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