unattended-upgrades: Be more close to upstream config for buster.

Signed-off-by: Maximilian Wilhelm <max@sdn.clinic>

unattended-upgrades/50unattended-upgrades.Debian.buster

@@ -2,7 +2,28 @@
 // Unattended Upgrades Configuration (Salt managed)
 //
 
-// Automatically upgrade packages from these origin patterns
+// Unattended-Upgrade::Origins-Pattern controls which packages are
+// upgraded.
+//
+// Lines below have the format format is "keyword=value,...".  A
+// package will be upgraded only if the values in its metadata match
+// all the supplied keywords in a line.  (In other words, omitted
+// keywords are wild cards.) The keywords originate from the Release
+// file, but several aliases are accepted.  The accepted keywords are:
+//   a,archive,suite (eg, "stable")
+//   c,component     (eg, "main", "contrib", "non-free")
+//   l,label         (eg, "Debian", "Debian-Security")
+//   o,origin        (eg, "Debian", "Unofficial Multimedia Packages")
+//   n,codename      (eg, "jessie", "jessie-updates")
+//     site          (eg, "http.debian.net")
+// The available values on the system are printed by the command
+// "apt-cache policy", and can be debugged by running
+// "unattended-upgrades -d" and looking at the log file.
+//
+// Within lines unattended-upgrades allows 2 macros whose values are
+// derived from /etc/debian_version:
+//   ${distro_id}            Installed origin.
+//   ${distro_codename}      Installed codename (eg, "buster")
 Unattended-Upgrade::Origins-Pattern {
         // Archive or Suite based matching:
         // Note that this will silently match a different release after
@@ -27,22 +48,28 @@ Unattended-Upgrade::Package-Blacklist {
 	"batman-adv-dkms";
 };
 
-// This option allows you to control if on a unclean dpkg exit
+/ 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";
+//Unattended-Upgrade::AutoFixInterruptedDpkg "true";
 
 // Split the upgrade into the smallest possible chunks so that
-// they can be interrupted with SIGUSR1. This makes the upgrade
+// they can be interrupted with SIGTERM. 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";
+// Install all updates when the machine is shutting down
+// instead of doing it in the background while the machine is running.
+// This will (obviously) make shutdown slower.
+// Unattended-upgrades increases logind's InhibitDelayMaxSec to 30s.
+// This allows more time for unattended-upgrades to shut down gracefully
+// or even install a few packages in InstallOnShutdown mode, but is still a
+// big step back from the 30 minutes allowed for InstallOnShutdown previously.
+// Users enabling InstallOnShutdown mode are advised to increase
+// InhibitDelayMaxSec even further, possibly to 30 minutes.
+//Unattended-Upgrade::InstallOnShutdown "false";
 
 // Send email to this address for problems or packages upgrades
 // If empty or unset then no email is sent, make sure that you
@@ -52,21 +79,57 @@ Unattended-Upgrade::Mail "root";
 
 // 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";
+Unattended-Upgrade::MailOnlyOnError "true";
+
+// Remove unused automatically installed kernel-related packages
+// (kernel images, kernel headers and kernel version locked tools).
+Unattended-Upgrade::Remove-Unused-Kernel-Packages "true";
 
-// Do automatic removal of new unused dependencies after the upgrade
+// Do automatic removal of newly unused dependencies after the upgrade
+//Unattended-Upgrade::Remove-New-Unused-Dependencies "true";
+
+// Do automatic removal of unused packages after the upgrade
 // (equivalent to apt-get autoremove)
 Unattended-Upgrade::Remove-Unused-Dependencies "false";
 
-// Automatically reboot *WITHOUT CONFIRMATION* if a 
-// the file /var/run/reboot-required is found after the upgrade 
+// Automatically reboot *WITHOUT CONFIRMATION* if
+//  the file /var/run/reboot-required is found after the upgrade
 Unattended-Upgrade::Automatic-Reboot "false";
 
+// Automatically reboot even if there are users currently logged in
+// when Unattended-Upgrade::Automatic-Reboot is set to true
+//Unattended-Upgrade::Automatic-Reboot-WithUsers "true";
+
+// If automatic reboot is enabled and needed, reboot at the specific
+// time instead of immediately
+//  Default: "now"
+//Unattended-Upgrade::Automatic-Reboot-Time "02:00";
 
 // Use apt bandwidth limit feature, this example limits the download
 // speed to 70kb/sec
 //Acquire::http::Dl-Limit "70";
 
+// Enable logging to syslog. Default is False
+Unattended-Upgrade::SyslogEnable "true";
+
+// Specify syslog facility. Default is daemon
+Unattended-Upgrade::SyslogFacility "daemon";
+
+// Download and install upgrades only on AC power
+// (i.e. skip or gracefully stop updates on battery)
+// Unattended-Upgrade::OnlyOnACPower "true";
+
+// Download and install upgrades only on non-metered connection
+// (i.e. skip or gracefully stop updates on a metered connection)
+// Unattended-Upgrade::Skip-Updates-On-Metered-Connections "true";
+
+// Verbose logging
+// Unattended-Upgrade::Verbose "false";
+
+// Print debugging information both in unattended-upgrades and
+// in unattended-upgrade-shutdown
+// Unattended-Upgrade::Debug "false";
+
 // Force dpkg to keep any existing configuration file regardless of
 // what the package might bring
 DPkg::Options:: "--force-confold";