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How can I adjust a template to use custom variables that are delivered from each client?

asked 2013-12-13 03:35:04 -0600

Marco gravatar image

updated 2013-12-13 03:36:00 -0600

Hi,

I am quite new to puppet and I want to determine what I have to do to make it work. Currently we are using package based configurations, and I want to change that to make things easier in the future. Following scenario:

We have an Active Directory and many Linux Clients that are using SSSD and Kerberos for authentication. In the sssd.conf is a parameter "ldap_uri". The parameter has 2 servers as values. The servers itself are obtained with the command on the client side:

host -N 2 -t SRV ldap.tcp.domain.net | grep -v NXDOMAIN | awk ... (more)

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answered 2013-12-13 03:55:09 -0600

golja gravatar image

In your case I would use an custom fact and name it ldapuri, so whenever the client send the request to the master it will also send the right ldapuri.

So for example:

# ldap_uri.rb

Facter.add("ldap_uri") do
  setcode do
    Facter::Util::Resolution.exec('/usr/bin/host -N 2 -t SRV ldap.tcp.domain.net | grep -v NXDOMAIN | awk '{print $NF}' | sed 's/'net.'/'net'/g'')
 end

end

Master will treat ldapuri as another global variable accessible by $::ldapuri, so you can use it in your template. For more information have a look at the official documentation.

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answered 2013-12-15 03:20:38 -0600

zwopiR gravatar image

there are DNS query functions made by the spotify guys (search in slideshare, there is a nice presentation about puppet@spotify) So you can get the values on the puppet master an use them in your template sssd.conf.erb (or whatever it is called)

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Asked: 2013-12-13 03:35:04 -0600

Seen: 153 times

Last updated: Dec 15 '13