pvc-installer/buildpxe.sh

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Executable File

#!/usr/bin/env bash
# Generate a PVC autoinstaller PXE configuration
fail() {
echo "$@"
exit 1
}
test -f /usr/lib/PXELINUX/pxelinux.0 &>/dev/null || fail "This script requires pxelinux and syslinux-common"
test -f /usr/lib/syslinux/modules/bios/ldlinux.c32 &>/dev/null || fail "This script requires pxelinux and syslinux-common"
sudo -n true &>/dev/null || fail "The user running this script must have sudo privileges."
outputdir="pvc-installer-pxe_$(date +%Y-%m-%d)/"
deployusername="deploy"
show_help() {
echo -e "PVC install PXE generator"
echo
echo -e " Generates a mostly-automated installer PXE image for a PVC node base system."
echo -e " This setup is designed to be used with the pvcbootstrapd system; for a normal"
echo -e " installation, use buildiso.sh instead."
echo
echo -e "Usage: $0 [-h] [-o <outputdirectory>] [-u username]"
echo
echo -e " -h: Display this help message."
echo -e " -o: Create the PXE images under <outputdirectory> instead of the default."
echo -e " -u: Change 'deploy' user to a new username."
echo -e " -a: Preserve live-build artifacts (passed through to buildiso.sh)."
echo -e " -k: Preserve live-build config (passed through to buildiso.sh)."
echo -e " -i: Preserve live-build ISO image."
}
while [ $# -gt 0 ]; do
case "${1}" in
-h|\?)
show_help
exit 0
;;
-o)
outputdir="${2}"
shift 2
;;
-u)
deployusername="${2}"
shift 2
;;
-a)
preserve_artifacts='-a'
shift
;;
-k)
preserve_livebuild='-k'
shift
;;
-i)
preserve_liveiso='y'
shift
;;
*)
echo "Invalid option: ${1}"
echo
show_help
exit 1
;;
esac
done
cleanup() {
echo -n "Cleaning up... "
echo "done."
echo
}
fail() {
echo $@
cleanup
exit 1
}
build_iso() {
if [[ ! -f pvc-installer_pxe-tmp.iso ]]; then
./buildiso.sh \
-o pvc-installer_pxe-tmp.iso \
-u ${deployusername} \
${preserve_artifacts} \
${preserve_livebuild} || fail "Failed to build ISO."
echo
fi
}
build_pxe() {
mkdir -p ${outputdir} ${outputdir}/host
echo -n "Mounting temporary ISO file... "
tmpdir=$( mktemp -d )
sudo mount pvc-installer_pxe-tmp.iso ${tmpdir} &>/dev/null
echo "done."
echo -n "Copying live boot files... "
cp ${tmpdir}/live/filesystem.squashfs ${outputdir}/
cp ${tmpdir}/live/vmlinuz ${outputdir}/
cp ${tmpdir}/live/initrd.img ${outputdir}/
echo "done."
echo -n "Unmounting and removing temporary ISO file... "
sudo umount ${tmpdir}
rmdir ${tmpdir}
echo "done."
echo -n "Downloading iPXE binary undionly.kpxe (chainloads arbitrary PXE clients)... "
pushd ${outputdir} &>/dev/null
wget -O undionly.kpxe https://boot.ipxe.org/undionly.kpxe &>/dev/null || fail "failed to download undionly.kpxe."
popd &>/dev/null
echo "done."
echo -n "Downloading iPXE binary ipxe.efi (chainloads UEFI clients)... "
pushd ${outputdir} &>/dev/null
wget -O ipxe.efi https://boot.ipxe.org/ipxe.efi &>/dev/null || fail "failed to download ipxe.efi."
popd &>/dev/null
echo "done."
echo -n "Copying base iPXE configuration... "
cp templates/boot.ipxe ${outputdir}/boot.ipxe
echo "done."
echo -n "Copying preseed template... "
cp templates/host-preseed.j2 ${outputdir}/host-preseed.j2
echo "done."
sudo chown -R $(whoami) ${outputdir}
sudo chmod -R u+w ${outputdir}
if [[ -z ${preserve_liveiso} ]]; then
echo -n "Removing temporary ISO... "
rm pvc-installer_pxe-tmp.iso &>/dev/null
echo "done."
fi
}
build_iso
build_pxe
cleanup
echo "PVC Live Installer PXE generation complete."