Debian_50unattended-upgrades.erb

// Automatically upgrade packages from these origin patterns
Unattended-Upgrade::Origins-Pattern {
        // Archive or Suite based matching:
        // Note that this will silently match a different release after
        // migration to the specified archive (e.g. testing becomes the
        // new stable).
//      "o=Debian,a=stable";
//      "o=Debian,a=stable-updates";
//      "o=Debian,a=proposed-updates";
        "origin=Debian,archive=stable,label=Debian-Security";
};



// List of packages to not update (regexp are supported)
Unattended-Upgrade::Package-Blacklist {
//	"vim";
//	"libc6";
//	"libc6-dev";
//	"libc6-i686";
};

// This option allows you to control if on a unclean dpkg exit
// unattended-upgrades will automatically run 
//   dpkg --force-confold --configure -a
// The default is true, to ensure updates keep getting installed
//Unattended-Upgrade::AutoFixInterruptedDpkg "false";

// Split the upgrade into the smallest possible chunks so that
// they can be interrupted with SIGUSR1. This makes the upgrade
// a bit slower but it has the benefit that shutdown while a upgrade
// is running is possible (with a small delay)
//Unattended-Upgrade::MinimalSteps "true";

// Install all unattended-upgrades when the machine is shuting down
// instead of doing it in the background while the machine is running
// This will (obviously) make shutdown slower
//Unattended-Upgrade::InstallOnShutdown "true";

// Send email to this address for problems or packages upgrades
// If empty or unset then no email is sent, make sure that you
// have a working mail setup on your system. A package that provides
// 'mailx' must be installed. E.g. "user@example.com"
Unattended-Upgrade::Mail "root@localhost";

// Set this value to "true" to get emails only on errors. Default
// is to always send a mail if Unattended-Upgrade::Mail is set
//Unattended-Upgrade::MailOnlyOnError "true";

// Do automatic removal of new unused dependencies after the upgrade
// (equivalent to apt-get autoremove)
<% if @autoremove == "true" -%>
Unattended-Upgrade::Remove-Unused-Dependencies "true";
<% else -%>
//Unattended-Upgrade::Remove-Unused-Dependencies "false";
<% end -%>

// Automatically reboot *WITHOUT CONFIRMATION*
//  if the file /var/run/reboot-required is found after the upgrade 
<% if @automatic_reboot == "true" -%>
Unattended-Upgrade::Automatic-Reboot "true";
<% else -%>
//Unattended-Upgrade::Automatic-Reboot "false";
<% end -%>

// If automatic reboot is enabled and needed, reboot at the specific
// time instead of immediately
//  Default: "now"
<% if @automatic_reboot == "true" -%>
Unattended-Upgrade::Automatic-Reboot-Time "<%= @automatic_reboot_time %>";