# Installed by the custom ISO (iso/build-iso.sh) and enabled from its
# autoinstall late-commands. Runs install.sh once, on tty1, the first
# time the freshly installed system boots - ordered before getty@tty1,
# so the login prompt only appears on tty1 once this has finished and
# an interactive install has the keyboard and screen to itself. /var/lib/kiosk-firstboot/pending is removed once the install
# finishes, so this is a no-op on every boot after that; an interrupted
# or failed install leaves it in place and simply runs again next boot.
#
# Ordering, learned the hard way on 26.04:
# - NOT After=cloud-final.service: cloud-final is After=multi-user.target,
#   and multi-user.target (which wants this unit) is After= it - an
#   ordering cycle, which systemd "fixes" at boot by dropping a job: this
#   one, so the install silently never ran. (The script doesn't wait for
#   cloud-init either, for the same reason - it would deadlock.)
# - NOT Conflicts=getty@tty1: getty.target pulls getty@tty1 into the same
#   boot transaction, and systemd resolves a conflict between two wanted
#   jobs by dropping one. Before= alone is enough - getty@tty1 waits for
#   this oneshot to finish.
[Unit]
Description=Ubuntu Based Kiosk first-boot install
After=network-online.target systemd-user-sessions.service plymouth-quit-wait.service
Wants=network-online.target
Before=getty@tty1.service
ConditionPathExists=/var/lib/kiosk-firstboot/pending

[Service]
Type=oneshot
ExecStart=/usr/local/sbin/kiosk-firstboot
# Belt and braces for the temporary sudoers/apt drop-ins when install.sh
# reboots out from under the script (its own EXIT trap normally does this).
ExecStopPost=/usr/local/sbin/kiosk-firstboot --cleanup
StandardInput=tty-force
StandardOutput=tty
StandardError=tty
TTYPath=/dev/tty1
TTYReset=yes
TTYVHangup=yes
TimeoutStartSec=infinity
TimeoutStopSec=30
KillMode=mixed

[Install]
WantedBy=multi-user.target