Node Name in Chef Template?

Question

I've been trying to figure out how to get the node's name (knife bootstrap -N) into a template. I've tried a dozen different ideas and haven't found anything that works yet. Does anyone know how to access this from a Chef recipe?

Also -- is there a way to list all of the variables available to a Chef recipe?

jarrad · Answer 1 · 2016-01-16T19:14:22.067

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A cleaner more concise way is shown on the Attributes wiki page:

node.name

edited Jan 16 '16 at 19:14

answered Apr 24 '12 at 14:17

jarrad

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This gives the FQDN. Any way to get the short name? – Travis Bear Oct 07 '14 at 23:05
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I don't know a very chef-ly way to do it, but node.name.split('.')[0] works ok – Travis Bear Oct 07 '14 at 23:16
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You should always use the node[:attribute] syntax when getting chef attributes. The ohai dervied attribute is at node[:hostname] – Eric Fode Oct 08 '14 at 18:40
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@jarrad note that your link is now broken because chef docs have moved. Would you be able to update it to the right one (i think https://docs.chef.io/ohai.html)? – Blaskovicz Oct 19 '15 at 21:20
@Blaskovicz I have updated the answer. Thanks for the heads up! – jarrad Jan 16 '16 at 19:14

score 31 · Answer 2 · edited Nov 23 '11 at 20:32

31

You can use Chef::Config[:node_name] in your recipe. I found this in the chef-client cookbook from Opscode.

edited Nov 23 '11 at 20:32

Marcus

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answered Nov 23 '11 at 20:31

Shuang Wu

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I concur with @anaudmeuret, this solution worked for me in Shef and in a recipe, where the accepted answer did not. – jslatts Feb 08 '12 at 18:32
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The original question is how to access node name in a template. This answer does not work for that. Actually, <%= node.name %> is the complete syntax for the .erb file, and is how to access the node name in a template. – Andrew Apr 07 '15 at 14:11
It seems the template syntax and recipe syntax are different. I've got a template that uses the <%=node.name%> syntax And just used the above Chef::Config[:node_name] syntax in a recipe – jorfus Aug 31 '16 at 01:15

score 5 · Answer 3 · answered Nov 30 '13 at 16:39

To see all node specific attributes type command

knife node edit <name> -a

First level keys accessible with "node." prefix.

{
  "name": "n1",
  ...
  "hostname": "chef-n1",
  "fqdn": "chef-n1.dan.lan",
  "domain": "dan.lan",
  "ipaddress": "192.168.4.4",
  "macaddress": "52:54:00:72:E7:C5",

Node Name in Chef Template?

3 Answers3