install systemd services as compat package

This commit is contained in:
Gavin Li 2015-01-04 21:40:12 -08:00
parent dcd051f795
commit 199edd5716
1 changed files with 81 additions and 22 deletions

View File

@ -57,6 +57,7 @@ set -eu
set -o pipefail set -o pipefail
shopt -s nullglob shopt -s nullglob
shopt -s dotglob shopt -s dotglob
umask 022
export LC_ALL=C export LC_ALL=C
export LANG=C export LANG=C
@ -83,6 +84,70 @@ mask_to_prefix() {
echo ${prefix} echo ${prefix}
} }
install_compat_package() {
local workdir=$(mktemp -d)
local unitdir=${workdir}/usr/lib/systemd/system
local kexeccmd
set -- /sbin/kexec \
/boot/vmlinuz-${kernel_package} \
--initrd=/boot/initramfs-${kernel_package}.img \
--reuse-cmdline \
--command-line=archkernel
kexeccmd="$*"
cat > ${workdir}/.PKGINFO <<-'EOF'
pkgname = digitalocean-debian-compat
pkgver = 1.0-1
pkgdesc = Compatibility files to run Arch Linux as a Debian distro on DigitalOcean
url = https://github.com/gh2o/digitalocean-debian-to-arch
arch = any
license = GPL
EOF
mkdir -p ${unitdir}/sysinit.target.wants/
ln -s ../arch-kernel.service ${unitdir}/sysinit.target.wants/
cat > ${unitdir}/arch-kernel.service <<-EOF
[Unit]
Description=Reboots into Arch kernel
ConditionKernelCommandLine=!archkernel
DefaultDependencies=no
Before=local-fs-pre.target systemd-remount-fs.service
[Service]
Type=oneshot
ExecStart=${kexeccmd}
EOF
mkdir -p ${unitdir}/multi-user.target.wants/
ln -s ../debian-interfaces.service ${unitdir}/multi-user.target.wants/
cat > ${unitdir}/debian-interfaces.service <<-EOF
[Unit]
Description=Parses /etc/network/interfaces into .network files for systemd-networkd
DefaultDependencies=no
Before=systemd-networkd.service
[Service]
Type=oneshot
ExecStart=/usr/sbin/parse-debian-interfaces
EOF
mkdir -p ${workdir}/usr/bin/
cat > ${workdir}/usr/bin/parse-debian-interfaces <<-EOF
#!/bin/bash
set -eu
set -o pipefail
echo ENIENIENIENI > /dev/kmsg
EOF
chmod 0755 ${workdir}/usr/bin/parse-debian-interfaces
( cd ${workdir} && bsdtar -cf compat.pkg.tar * )
pacman -U --noconfirm ${workdir}/compat.pkg.tar
rm -rf ${workdir}
}
parse_debian_interfaces() { parse_debian_interfaces() {
local filename="${1}" # path to interfaces file local filename="${1}" # path to interfaces file
local interface="${2}" # interface name local interface="${2}" # interface name
@ -431,29 +496,15 @@ postbootstrap_configuration() {
local unitdir=/archroot/etc/systemd/system local unitdir=/archroot/etc/systemd/system
mkdir -p ${unitdir}/basic.target.wants mkdir -p ${unitdir}/basic.target.wants
ln -s ../installer-cleanup.service ${unitdir}/basic.target.wants/ ln -s ../installer-finalize.service ${unitdir}/basic.target.wants/
cat > ${unitdir}/installer-cleanup.service <<EOF cat > ${unitdir}/installer-finalize.service <<EOF
[Unit] [Unit]
Description=Post-install cleanup Description=Post-install finalization
ConditionPathExists=/installer/script.sh ConditionPathExists=/installer/script.sh
[Service] [Service]
Type=oneshot Type=oneshot
ExecStart=/installer/script.sh ExecStart=/installer/script.sh
EOF
mkdir -p ${unitdir}/sysinit.target.wants
ln -s ../arch-kernel.service ${unitdir}/sysinit.target.wants
cat > ${unitdir}/arch-kernel.service <<EOF
[Unit]
Description=Reboots into arch kernel
ConditionKernelCommandLine=!archkernel
DefaultDependencies=no
Before=local-fs-pre.target systemd-remount-fs.service
[Service]
Type=oneshot
ExecStart=/sbin/kexec /boot/vmlinuz-${kernel_package} --initrd=/boot/initramfs-${kernel_package}.img --reuse-cmdline --command-line=archkernel
EOF EOF
} }
@ -579,12 +630,16 @@ transitory_main() {
} }
postinstall_main() { finalize_main() {
# remove cleanup service # install compatibility package
install_compat_package
# remove finalization service
local unitdir=/etc/systemd/system local unitdir=/etc/systemd/system
rm -f ${unitdir}/installer-cleanup.service rm -f ${unitdir}/installer-finalize.service
rm -f ${unitdir}/basic.target.wants/installer-cleanup.service rm -f ${unitdir}/basic.target.wants/installer-finalize.service
rmdir ${unitdir}/basic.target.wants || true
# cleanup filesystem # cleanup filesystem
rm -f /var/cache/pacman/pkg rm -f /var/cache/pacman/pkg
@ -593,6 +648,10 @@ postinstall_main() {
rm -rf /archroot rm -rf /archroot
rm -rf /installer rm -rf /installer
# restart into new kernel
systemctl daemon-reload
systemctl start arch-kernel.service
} }
canonicalize_path() { canonicalize_path() {
@ -610,7 +669,7 @@ if [ $$ -eq 1 ]; then
elif [ "${script_path}" = "/sbin/init" ]; then elif [ "${script_path}" = "/sbin/init" ]; then
exec /sbin/init.original "$@" exec /sbin/init.original "$@"
elif [ "${script_path}" = "/installer/script.sh" ]; then elif [ "${script_path}" = "/installer/script.sh" ]; then
postinstall_main "$@" finalize_main "$@"
else else
installer_main "$@" installer_main "$@"
fi fi