apt-formula/apt/templates/periodic_config.jinja

{% set apt = pillar.get('apt', {}) -%}
{% set unattended = apt.get('unattended', {}) -%}
{% set enabled = unattended.get('enabled', '1') -%}
{% set update_package_lists = unattended.get('update_package_lists', '1') -%}
{% set download_upgradeable_packages = unattended.get('download_upgradeable_packages', '1') -%}
{% set unattended_upgrade = unattended.get('unattended_upgrade', '1') -%}
{% set auto_clean_interval = unattended.get('auto_clean_interval', '7') -%}
{% set verbose = unattended.get('verbose', '2') -%}
APT::Periodic::Enable "{{ enabled }}"; 
APT::Periodic::Update-Package-Lists "{{ update_package_lists }}";
APT::Periodic::Download-Upgradeable-Packages "{{ download_upgradeable_packages }}";
APT::Periodic::Unattended-Upgrade "{{ unattended_upgrade }}";
APT::Periodic::AutocleanInterval "{{ auto_clean_interval }}";
APT::Periodic::Verbose "{{ verbose }}";