d-i debian-installer/locale string en_US.UTF-8
d-i keyboard-configuration/xkb-keymap select us

d-i netcfg/choose_interface select auto
d-i netcfg/get_hostname string debian-k3s
d-i netcfg/get_domain string local

d-i mirror/country string manual
d-i mirror/http/hostname string deb.debian.org
d-i mirror/http/directory string /debian
d-i mirror/http/proxy string

d-i passwd/root-login boolean true
d-i passwd/root-password password packer
d-i passwd/root-password-again password packer
d-i passwd/make-user boolean false

d-i clock-setup/utc boolean true
d-i time/zone string UTC

d-i partman-auto/method string regular
d-i partman-auto/disk string /dev/vda
d-i partman-auto/choose_recipe select gpt-boot-root
d-i partman-auto/expert_recipe string                         \
      gpt-boot-root ::                                        \
              512 512 512 fat32                               \
                      $primary{ }                             \
                      $bootable{ }                            \
                      method{ efi }                           \
                      format{ }                               \
              .                                               \
              1024 10000 -1 ext4                              \
                      $primary{ }                             \
                      method{ format } format{ }              \
                      use_filesystem{ } filesystem{ ext4 }    \
                      mountpoint{ / }                         \
              .
d-i partman-partitioning/confirm_write_new_label boolean true
d-i partman/choose_partition select finish
d-i partman/confirm boolean true
d-i partman/confirm_nooverwrite boolean true

d-i apt-setup/non-free-firmware boolean true
d-i apt-setup/non-free boolean true
d-i apt-setup/contrib boolean true

tasksel tasksel/first multiselect standard, ssh-server
d-i pkgsel/include string sudo curl ca-certificates qemu-guest-agent cloud-init
d-i pkgsel/upgrade select full-upgrade

d-i grub-installer/only_debian boolean true
d-i grub-installer/bootdev string default

d-i finish-install/reboot_in_progress note