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script appears to work

This commit is contained in:
Kyle Isom 2025-09-01 02:48:15 -07:00
parent 974418bf8c
commit 9d7df09ba1
1 changed files with 77 additions and 35 deletions
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100
script/build-vm.sh
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@ -13,47 +13,89 @@ echo " image: ${qcow2}"
sleep 5 sleep 5
echo "[+] updating NixOS config" build_nixos_vm () {
cd /etc/nixos
doas git pull --rebase local master
if [[ -d "${build_dir}" ]] echo "[+] updating NixOS config"
then cd /etc/nixos
doas git pull --rebase local master
if [[ -d "${build_dir}" ]]
then
echo "[+] removing ${build_dir}" echo "[+] removing ${build_dir}"
sleep 2 sleep 2
rm -r "${build_dir}" rm -r "${build_dir}"
fi fi
mkdir "${build_dir}" mkdir "${build_dir}"
cd "${build_dir}" cd "${build_dir}"
nixos-rebuild build-vm nixos-rebuild build-vm
echo "[+] Spinning up VM; kill it when you see the line" echo "[+] Spinning up VM; kill it when you see the line"
echo " 'Virtualisation disk image created.'" echo " 'Virtualisation disk image created.'"
"${build_dir}/result/bin/run-$(hostname -s)-vm" "${build_dir}/result/bin/run-$(hostname -s)-vm"
doas qemu-img resize "${qcow2}" 256G doas qemu-img resize "${qcow2}" 256G
doas modprobe nbd max_part=8 doas modprobe nbd max_part=8
echo "[+] connecting to network block driver" echo "[+] connecting to network block driver"
echo " note: on failure, you may need to manually run" echo " note: on failure, you may need to manually run"
echo " doas qemu-nbd --disconnect /dev/nbd0" echo " doas qemu-nbd --disconnect /dev/nbd0"
doas qemu-nbd --connect=/dev/nbd0 ${qcow2} doas qemu-nbd --connect=/dev/nbd0 ${qcow2}
if [[ -d "${mount_point}" ]] if [[ -d "${mount_point}" ]]
then then
echo "[+] removing ${mount_point}" echo "[+] removing ${mount_point}"
sleep 2 sleep 2
rm -r "${mount_point}" rm -r "${mount_point}"
fi fi
mkdir -p "${mount_point}" mkdir -p "${mount_point}"
doas mount /dev/nbd0 "${mount_point}" doas mount /dev/nbd0 "${mount_point}"
rsync --progress -auvz "${HOME}/" "${mount_point}/home/kyle/" rsync --progress -auvz "${HOME}/" "${mount_point}/home/kyle/"
echo "[+] finished, cleaning up" echo "[+] finished, cleaning up"
doas unmount "${mount_point}" doas umount "${mount_point}"
doas qemu-nbd --disconnect /dev/nbd0 doas qemu-nbd --disconnect /dev/nbd0
doas rmdir "${mount_point}" doas rmdir "${mount_point}"
doas rm -r "${build_dir}" doas rm -r "${build_dir}"
}
cleanup () {
if [[ -d "${build_dir}" ]]
then
echo "[+] removing ${build_dir}"
sleep 2
rm -r "${build_dir}"
fi
if [[ ! -z "$(mount | grep /dev/nbd0)" ]]
then
echo "[+] unmounting network block device"
doas umount /dev/nbd0
fi
echo "[+] disconnecting network block device"
echo " it's okay if this fails"
doas qemu-nbd --disconnect /dev/nbd0
if [[ -d "${mount_point}" ]]
then
echo "[+] removing ${mount_point}"
sleep 2
rm -r "${mount_point}"
fi
}
case "${1:-build}" in
build)
build_nixos_vm
;;
cleanup)
cleanup
;;
*)
echo "[!] Valid commands are build, cleanup"
exit 1
;;
esac