Howto Install Configure and Run Latest Puppet in Ubuntu

http://www.ubuntuupdates.org/ppa/puppet_repo

a)
Setup the key with:
https://apt.puppetlabs.com/
$ wget https://apt.puppetlabs.com/puppetlabs-release-trusty.deb
$ sudo dpkg -i puppetlabs-release-trusty.deb



b)
Setup repository with:
#sudo sh -c 'echo "deb http://apt.puppetlabs.com// trusty main" >> /etc/apt/sources.list.d/puppet.list'

c)
#sudo apt-get update

d)
#sudo apt-get install puppet