154 lines
4.3 KiB
Bash
Executable file
154 lines
4.3 KiB
Bash
Executable file
#!/bin/sh
|
|
|
|
# This script generates Debian images for OpenNebula.
|
|
#
|
|
# Test image locally (without network) with:
|
|
# qemu-system-x86_64 -enable-kvm -m 1G -drive file=$IMAGE,format=qcow2
|
|
|
|
set -e
|
|
set -x
|
|
|
|
# XXX: Handle command-line arguments?
|
|
ARCH=amd64
|
|
IMAGE_PATH=arch-$(date --iso-8601).img.qcow2
|
|
IMAGE_SIZE=10G
|
|
NBD_DEVICE=/dev/nbd0
|
|
|
|
# TODO: find the package definition and built ourself, publish in some RPM repository.
|
|
ONE_CONTEXT_DEB_URL="https://github.com/OpenNebula/addon-context-linux/releases/download/v5.10.0/one-context_5.10.0-1.deb"
|
|
ONE_CONTEXT_DEB_PATH=/root/one-context.deb
|
|
|
|
cleanup() {
|
|
# The order here is important.
|
|
umount /mnt/dev/pts 2>/dev/null || true
|
|
umount /mnt/dev/shm 2>/dev/null || true
|
|
umount /mnt/dev 2>/dev/null || true
|
|
umount /mnt/proc 2>/dev/null || true
|
|
umount /mnt/run 2>/dev/null || true
|
|
umount /mnt/sys 2>/dev/null || true
|
|
umount /mnt/boot 2>/dev/null || true
|
|
umount /mnt 2>/dev/null || true
|
|
qemu-nbd --disconnect "$NBD_DEVICE" || true
|
|
}
|
|
|
|
run_root() {
|
|
chroot /mnt /usr/bin/env \
|
|
PATH=/sbin:/usr/sbin:/bin:/usr/bin \
|
|
sh -c "$*"
|
|
}
|
|
|
|
if [ "$(whoami)" != 'root' ]; then
|
|
echo "This script must be run as root." >&2
|
|
exit 1
|
|
fi
|
|
|
|
if [ $(lsb_release --short --id) != "Arch" ]; then
|
|
echo "WARNING: this script has been designed to run on an Ubuntu system." >&2
|
|
echo "WARNING: Not running Ubuntu. Giving you 5 seconds to abort." >&2
|
|
sleep 5
|
|
fi
|
|
|
|
# Create base QCOW2 image.
|
|
qemu-img create -f qcow2 "$IMAGE_PATH" "$IMAGE_SIZE"
|
|
modprobe nbd max_part=16
|
|
qemu-nbd --connect="$NBD_DEVICE" "$IMAGE_PATH"
|
|
|
|
# Wait for qemu-nbd to settle.
|
|
sleep 1
|
|
|
|
# Don't forget to cleanup, even if the script crash.
|
|
trap cleanup EXIT
|
|
|
|
# Create partition table, format partitions.
|
|
sfdisk --no-reread "$NBD_DEVICE" <<EOF
|
|
1M,500M,L,*
|
|
,,L
|
|
EOF
|
|
|
|
mkfs.ext4 "${NBD_DEVICE}p1"
|
|
mkfs.ext4 "${NBD_DEVICE}p2"
|
|
|
|
# Mount partitions, install base OS.
|
|
|
|
mount "${NBD_DEVICE}p2" /mnt
|
|
mkdir /mnt/boot
|
|
mount "${NBD_DEVICE}p1" /mnt/boot
|
|
|
|
# Install base system.
|
|
pacstrap /mnt nbase base-devel openssh
|
|
|
|
mount --bind /dev /mnt/dev
|
|
mount --bind /dev/pts /mnt/dev/pts
|
|
mount --bind /dev/shm /mnt/dev/shm
|
|
mount --bind /proc /mnt/proc
|
|
mount --bind /run /mnt/run
|
|
mount --bind /sys /mnt/sys
|
|
|
|
# Guest networking is to be handled by the one-context package.
|
|
# See https://github.com/OpenNebula/addon-context-linux for details.
|
|
|
|
# Required to resolve package mirror in chroot.
|
|
cp /etc/resolv.conf /mnt/etc/resolv.conf
|
|
|
|
# Initialize /etc/hosts.
|
|
cat > /mnt/etc/hosts << EOF
|
|
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
|
|
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
|
|
|
|
EOF
|
|
|
|
# Configure package sources and update package index.
|
|
cat > /mnt/etc/pacman.d/mirrorlist << EOF
|
|
##
|
|
## Arch Linux repository mirrorlist
|
|
## Generated on 2020-05-12
|
|
##
|
|
|
|
## Switzerland
|
|
Server = http://pkg.adfinis-sygroup.ch/archlinux/$repo/os/$arch
|
|
Server = https://pkg.adfinis-sygroup.ch/archlinux/$repo/os/$arch
|
|
Server = http://mirror.init7.net/archlinux/$repo/os/$arch
|
|
Server = https://mirror.init7.net/archlinux/$repo/os/$arch
|
|
Server = http://mirror.puzzle.ch/archlinux/$repo/os/$arch
|
|
Server = https://mirror.puzzle.ch/archlinux/$repo/os/$arch
|
|
Server = https://mirror.ungleich.ch/mirror/packages/archlinux/$repo/os/$arch
|
|
EOF
|
|
run_root pacman --sync --refresh --upgrade
|
|
|
|
# Initalize base services.
|
|
run_root systemd-machine-id-setup
|
|
|
|
run_root ln -sf /usr/share/zoneinfo/UTC /etc/localtime
|
|
run_root systemctl enable systemd-timesyncd.service
|
|
|
|
# Install kernel and generate initramfs.
|
|
run_root pacman --sync linux mkinitcpio
|
|
run_rot mkinitcpio -P
|
|
|
|
# Install and configure bootloader.
|
|
run_root pacman --sync grub
|
|
run_root grub-install --target=i386-pc "${NBD_DEVICE}"
|
|
run_root grub-mkconfig -o /boot/grub/grub.cfg
|
|
|
|
# Install en configure SSH daemon.
|
|
run_root pacman --sync openssh-server
|
|
|
|
# Install haveged due to lack of entropy in ONE environment.
|
|
run_root pacman --sync haveged
|
|
run_root systemctl enable haveged.service
|
|
|
|
# Generate fstab file.
|
|
boot_uuid=$(blkid --match-tag UUID --output value "${NBD_DEVICE}p1")
|
|
root_uuid=$(blkid --match-tag UUID --output value "${NBD_DEVICE}p2")
|
|
cat >>/mnt/etc/fstab <<EOF
|
|
UUID=$boot_uuid /boot ext4 rw,relatime,data=ordered 0 2
|
|
UUID=$root_uuid / ext4 rw,relatime,data=ordered 0 1
|
|
EOF
|
|
|
|
# Reset systemd's environment.
|
|
run_root rm -f /etc/machine-id
|
|
run_root touch /etc/machine-id
|
|
rm -f /var/lib/systemd/random-seed
|
|
|
|
# Make sure everything is written to disk before exiting.
|
|
sync
|