# infra/host/fly-nvidia-majors.service — installed BY HAND on the host as
# /etc/systemd/system/fly-nvidia-majors.service. NOT pushed into any
# container and NOT installed by provision.sh: this is a host unit that
# writes /etc/pve, which is not reachable through pct exec.
# See infra/host/README.md and docs/design/gpu.md section 1.
#
# Ordering is the whole point. The host already runs nvidia-devnodes.service
# (Before=pve-guests.service), which materialises /dev/nvidia* but does NOT
# rewrite the majors in the guest configs — which is exactly why the neighbouring GPU container's
# conf still allows the stale `c 509:*` and `c 234:*`. This unit is the
# missing other half (the LLM host has it as pve-nvidia-majors.service) and must
# run after the nodes exist and before any guest starts, because lxc.* keys
# are only read at container start.
#
# Default id list: 122 150 151 199.
#   122 = ml/the GPU workload in the neighbouring container, already on this GPU since August. Including it repairs
#         its stale majors as a side effect. The operator approved this (2026-09-15);
#         it is a change to a production container, so do not quietly drop
#         or extend this list.
#   150/151 = fly-pokemon / fly-platformer.
#   199 = fly-spike, absent most of the time. A missing conf is reported and
#         skipped, not an error, so the list can name CTs that do not exist.
[Unit]
Description=Refresh NVIDIA device majors in LXC guest configs
Wants=nvidia-devnodes.service
After=nvidia-devnodes.service
Before=pve-guests.service

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/usr/local/sbin/fly-nvidia-majors.sh 122 150 151 199

[Install]
WantedBy=multi-user.target