class env::big::install_g5k_jupyterlab { case $operatingsystem { 'Debian': { if "${::lsbdistcodename}" != "stretch" { include env::common::software_versions env::common::g5kpackages { 'g5k-jupyterlab': ensure => $::env::common::software_versions::g5k_jupyterlab; } } } default: { err "${operatingsystem} not supported." } } }