Add scripts for continuous integration
.gitlab/ci/build-host.sh: Add script to be run in a container with access to qemu. It is a slight modification of arch-boxes' build-host.sh script to cater to the specific archiso requirements. .gitlab/ci/build-inside-vm.sh: Add script to be run in virtualized environment, established by build-host.sh. This script builds the actual archiso profiles and creates checksum for the resulting image files.
This commit is contained in:
David Runge
parent
f9a7b206a5
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07239499a6
149
.gitlab/ci/build-host.sh
Executable file
149
.gitlab/ci/build-host.sh
Executable file
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#!/bin/bash
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# build-host.sh runs build-inside-vm.sh in a qemu VM running the latest Arch installer iso
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#
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# nounset: "Treat unset variables and parameters [...] as an error when performing parameter expansion."
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# errexit: "Exit immediately if [...] command exits with a non-zero status."
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set -o nounset -o errexit
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readonly MIRROR="https://mirror.pkgbuild.com"
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function init() {
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readonly ORIG_PWD="${PWD}"
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readonly OUTPUT="${PWD}/output"
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readonly TMPDIR="$(mktemp --dry-run --directory --tmpdir="${PWD}/tmp")"
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mkdir -p "${OUTPUT}" "${TMPDIR}"
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cd "${TMPDIR}"
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}
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# Do some cleanup when the script exits
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function cleanup() {
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rm -rf "${TMPDIR}"
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jobs -p | xargs --no-run-if-empty kill
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}
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trap cleanup EXIT
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# Use local Arch iso or download the latest iso and extract the relevant files
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function prepare_boot() {
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if LOCAL_ISO="$(ls "${ORIG_PWD}/"archlinux-*-x86_64.iso 2>/dev/null)"; then
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echo "Using local iso: ${LOCAL_ISO}"
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ISO="${LOCAL_ISO}"
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fi
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if [ -z "${LOCAL_ISO}" ]; then
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LATEST_ISO="$(curl -fs "${MIRROR}/iso/latest/" | grep -Eo 'archlinux-[0-9]{4}\.[0-9]{2}\.[0-9]{2}-x86_64.iso' | head -n 1)"
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if [ -z "${LATEST_ISO}" ]; then
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echo "Error: Couldn't find latest iso'"
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exit 1
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fi
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curl -fO "${MIRROR}/iso/latest/${LATEST_ISO}"
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ISO="${PWD}/${LATEST_ISO}"
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fi
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# We need to extract the kernel and initrd so we can set a custom cmdline:
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# console=ttyS0, so the kernel and systemd sends output to the serial.
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xorriso -osirrox on -indev "${ISO}" -extract arch/boot/x86_64 .
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ISO_VOLUME_ID="$(xorriso -indev "${ISO}" |& awk -F : '$1 ~ "Volume id" {print $2}' | tr -d "' ")"
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}
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function start_qemu() {
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# Used to communicate with qemu
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mkfifo guest.out guest.in
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# We could use a sparse file but we want to fail early
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fallocate -l 8G scratch-disk.img
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{ qemu-system-x86_64 \
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-machine accel=kvm:tcg \
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-smp "$(nproc)" \
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-m 4096 \
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-net nic \
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-net user \
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-kernel vmlinuz-linux \
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-initrd initramfs-linux.img \
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-append "archisobasedir=arch archisolabel=${ISO_VOLUME_ID} ip=dhcp net.ifnames=0 console=ttyS0 mirror=${MIRROR}" \
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-drive file=scratch-disk.img,format=raw,if=virtio \
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-drive file="${ISO}",format=raw,if=virtio,media=cdrom,read-only \
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-virtfs "local,path=${ORIG_PWD},mount_tag=host,security_model=none" \
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-monitor none \
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-serial pipe:guest \
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-nographic || kill "${$}"; } &
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# We want to send the output to both stdout (fd1) and fd10 (used by the expect function)
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exec 3>&1 10< <(tee /dev/fd/3 <guest.out)
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}
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# Wait for a specific string from qemu
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function expect() {
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local length="${#1}"
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local i=0
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local timeout="${2:-30}"
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# We can't use ex: grep as we could end blocking forever, if the string isn't followed by a newline
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while true; do
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# read should never exit with a non-zero exit code,
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# but it can happen if the fd is EOF or it times out
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IFS= read -r -u 10 -n 1 -t "${timeout}" c
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if [ "${1:${i}:1}" = "${c}" ]; then
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i="$((i + 1))"
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if [ "${length}" -eq "${i}" ]; then
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break
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fi
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else
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i=0
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fi
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done
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}
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# Send string to qemu
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function send() {
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echo -en "${1}" >guest.in
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}
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function main() {
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init
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prepare_boot
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start_qemu
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# Login
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expect "archiso login:"
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send "root\n"
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expect "# "
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# Switch to bash and shutdown on error
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send "bash\n"
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expect "# "
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send "trap \"shutdown now\" ERR\n"
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expect "# "
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# Prepare environment
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send "mkdir /mnt/project && mount -t 9p -o trans=virtio host /mnt/project -oversion=9p2000.L\n"
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expect "# "
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send "mkfs.ext4 /dev/vda && mkdir /mnt/scratch-disk/ && mount /dev/vda /mnt/scratch-disk && cd /mnt/scratch-disk\n"
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expect "# "
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send "cp -a /mnt/project/{.gitlab,archiso,configs,scripts} .\n"
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expect "# "
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send "mkdir pkg && mount --bind pkg /var/cache/pacman/pkg\n"
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expect "# "
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# Wait for pacman-init
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send "until systemctl is-active pacman-init; do sleep 1; done\n"
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expect "# "
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# Explicitly lookup mirror address as we'd get random failures otherwise during pacman
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send "curl -sSo /dev/null ${MIRROR}\n"
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expect "# "
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# Install required packages
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send "pacman -Sy --noconfirm qemu-headless jq dosfstools e2fsprogs libisoburn mtools squashfs-tools\n"
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expect "# "
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## Start build and copy output to local disk
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send "bash -x ./.gitlab/ci/build-inside-vm.sh ${PROFILE}\n "
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expect "# " 1000 # mksquashfs can take a long time
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send "cp -r --preserve=mode,timestamps output /mnt/project/tmp/$(basename "${TMPDIR}")/\n"
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expect "# " 60
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mv output/* "${OUTPUT}/"
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# Shutdown the VM
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send "shutdown now\n"
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wait
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}
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main
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39
.gitlab/ci/build-inside-vm.sh
Executable file
39
.gitlab/ci/build-inside-vm.sh
Executable file
@ -0,0 +1,39 @@
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#!/usr/bin/env bash
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#
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# This script is run within a virtual environment to build the available archiso profiles and create checksum files for
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# the resulting images.
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# The script needs to be run as root and assumes $PWD to be the root of the repository.
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readonly orig_pwd="${PWD}"
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readonly output="${orig_pwd}/output"
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readonly tmpdir="$(mktemp --dry-run --directory --tmpdir="${orig_pwd}/tmp")"
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cleanup() {
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# clean up temporary directories
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if [ -n "${tmpdir:-}" ]; then
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rm -rf "${tmpdir}"
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fi
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}
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create_checksums() {
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# create checksums for a file
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# $1: a file
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sha256sum "${1}" >"${1}.sha256"
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sha512sum "${1}" >"${1}.sha512"
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b2sum "${1}" >"${1}.b2"
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if [ -n "${SUDO_UID:-}" ]; then
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chown "${SUDO_UID}:${SUDO_GID}" "${1}"{,.b2,.sha{256,512}}
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fi
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}
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run_mkarchiso() {
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# run mkarchiso
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# $1: template name
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mkdir -p "${output}/${1}" "${tmpdir}/${1}"
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./archiso/mkarchiso -o "${output}/${1}" -w "${tmpdir}/${1}" -v "configs/${1}"
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create_checksums "${output}/${1}/"*.iso
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}
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trap cleanup EXIT
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run_mkarchiso "${1}"
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