apt-get install unattended-upgrades && \
cat > /etc/apt/apt.conf.d/10periodic <<EOF
APT::Periodic::Update-Package-Lists "1";
APT::Periodic::Download-Upgradeable-Packages "1";
APT::Periodic::AutocleanInterval "7";
APT::Periodic::Unattended-Upgrade "1";
EOF
sed -i 's#//      "o=Debian,a=stable#        "o=Debian,a=stable#' /etc/apt/apt.conf.d/50unattended-upgrades && \
sed -i 's#//Unattended-Upgrade::Remove-Unused-Dependencies "false"#Unattended-Upgrade::Remove-Unused-Dependencies "true"#' /etc/apt/apt.conf.d/50unattended-upgrades && \
sed -i 's#//Unattended-Upgrade::Automatic-Reboot "false"#Unattended-Upgrade::Automatic-Reboot "true"#' /etc/apt/apt.conf.d/50unattended-upgrades && \
sed -i 's#//Unattended-Upgrade::Automatic-Reboot-Time "02:00"#Unattended-Upgrade::Automatic-Reboot-Time "04:00"#' /etc/apt/apt.conf.d/50unattended-upgrades