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I'm using puppet to configure servers. I want to print current machine (node) name in *.erb template. There is hostname variable, but this holds puppetmaster hostname. Is there any good reference/list regarding to this topic?

Michal Bryxí
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5 Answers5

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Seems like I have miss-looked somewhere. I can get(print) node-hostname simply by invoking following code in *.erb template:

<%= @hostname %>

Edit: As of Puppet 3, using local variables (i.e. hostname is deprecated; Puppet 4 will remove support for them entirely. The recommended way is to use instance variables (prefixed with @. So in this case, @hostname. Source

peelman
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Michal Bryxí
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  • ah exactly, I was really puzzled, because in my case for "fqdn" I get the full hostname (like "myhost.acnemcom"), while for "hostname" I get the short version (the one returned by the command hostname -s) , like "myhost". In no case I get the puppetmaster host. – Pierluigi Vernetto Sep 12 '14 at 16:48
32

Entering the following command into your terminal will return variables available in your erb files:

facter --puppet
pcting
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6

Yes to all the above; you may also find the fqdn variable useful, depending on what you're up to.

If you DO find yourself needing the puppet master server's info in a template, you can use the variables servername, serverip, and serverversion (From the Puppet docs).

IBBoard
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nfagerlund
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4

Apparently you can now use

<%= fqdn %>

and get the DNS reverse name.

If you need to lowercase it, use

<%= fqdn.downcase %>
Alois Mahdal
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mtneagle
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3

Do note though, this is the hostname rather than the node name (which you originally asked for). In 99% of cases, these will be the same. AFAIK there isn't a way to get the actual node name in templates (and if there is, I'd love to hear it).

adamcooke
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