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I'd like to set the default shell to zsh in Puppet. Preferably for the current user because I just run my modules as puppet apply mymodule.pp since I store my configuration that I use across multiple machines in git.

How can I set the default shell using puppet?

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2 Answers 2

up vote 4 down vote accepted

If you want to set the shell of an existing user, simply do:

user { "theuser":
  ensure => present,
  shell  => "/bin/zsh",
}

If you want to set the shell of whatever user Puppet is happening to run as, you can make use of the $id fact which returns the name of the current user. This feels a little bit magical to me, and may result in undesired outcomes, like if you're running as the puppet user with a puppet agent run and you end up setting a shell for a user that shouldn't have interactive logins.

That would be done like:

user { $id:
  ensure => present,
  shell  => "/bin/zsh",
}

Note: the "ensure => present" is optional.

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Thanks! Unfortunately setting the shell requires superuser privileges and hence I can't use $id as it points to root. I also added the required quotes around the shell variable. –  Jason Axelson Apr 10 '12 at 4:19

You can specify user shell when you realize the user, which should be created as a virtual resource. See or search for puppet best practices to get details.

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What happens if the user already exists? –  Martijn Heemels Mar 30 '12 at 20:15
    
is that exacty the same user? if so, puppet should update the default shell from the recipe. if the same uid but different user, then you have a conflict and you need to remove the user with the uid in the system so that puppet will run. however, –  johnshen64 Mar 30 '12 at 22:01

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