Installing a puppet module from a manifest script

Question

I'm using puppet to provision a vagrant (ubuntu based) virtual machine. In my script I need to:

sudo apt-get build-dep python-lxml 

I know I can install the apt puppet module so I can use:

apt::builddep { 'python-lxml': } 

But I can't find any reference about installing a module from the script and how to include/require it. Seems to me that the puppet docs refer only to installing from the command line puppet tool

I also tried doing something like:

define build_dep($pkgname){     exec {     "builddepend_$pkgname":     commmand => "sudo apt-get build-dep $pkgname";     } } build_dep{     "python-imaging":     pkgname => "python-imaging";      "python-lxml":     pkgname => "python-lxml"; } 

But puppet exited with an error on this. And also:

exec{"install apt module":      command => "puppet module install puppetlabs/apt" }  class { 'apt':         require => Exec["install apt module"]} include apt  apt::builddep { 'python-imaging':  } 

but got could not find declared class apt at..

any ideas? directions? I know I'm missing something obvious but can't figure this out.

EDIT: If I pre-install (with puppet module install from the commandline) the apt:builddep works fine. But I need puppet to handle the module downloading and installation. Some of the other work arounds also work for the basic use case but won't answer my main question.

Answer 1

I ran into this problem as well. The trick is to download the modules using a vagrant shell command before the puppet provisioner runs.

config.vm.provision :shell do |shell|   shell.inline = "mkdir -p /etc/puppet/modules;                   puppet module install puppetlabs/nodejs;                   puppet module install puppetlabs/apache" end  config.vm.provision :puppet do |puppet|   puppet.manifests_path = "puppet/manifests"   puppet.manifest_file = "site.pp" end 

Order is important here, and since the puppet provisioner hasn't run the folder /etc/puppet/modules does not exist yet.

The reason I decided, like alonisser, to install the modules using the puppet module tool instead of using a module folder with the vagrant puppet provisioner was because I didn't want to have to download all of the dependencies of the modules I was going to use and store all of those modules in my source control. Running these two commands results in 5 dependencies that would otherwise sit in my git repository taking up space.

Answer 2

Here's what I did to make the puppet module install command run at most once:

$script = <<EOF mkdir -p /etc/puppet/modules (puppet module list | grep puppetlabs-mysql) ||    puppet module install -v 2.1.0 puppetlabs/mysql EOF  Vagrant::Config.run do |config|    config.vm.provision :shell, :inline => $script