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#! /bin/sh
# Auto-install OpenBSD/amd64 6.6 to a QEMU guest machine. A POSIX shell script
# intended to run headless, ssh-controlled integration tests.
#
# Run the following command to serve the automatically created directory mirror
# at http://127.0.0.1 (port 80):
#
# sudo python3 -m http.server --directory mirror --bind 127.0.0.1 80
#
# Pass the following options to ssh or scp to connect to the guest machine:
#
# ssh \
# -o "StrictHostKeyChecking no" \
# -o "UserKnownHostsFile /dev/null" \
# -o "Port 2222" \
# puffy@127.0.0.1
#
# Press C-a x to stop the guest machine. Press C-a h to show other options.
#
# The virtual network:
#
# network = 10.0.2.0/24
# host = 10.0.2.2
# nameserver = 10.0.2.3
# guest = 10.0.2.15-31
#
# Port forwardings:
#
# host:2222 -> guest:22
# host:8080 -> guest:80
#
# Run the following command to clean up any mess created by this script :)
#
# git clean -Xdf
#
# Copyright (c) 2020 Stefan Kreutz <mail@skreutz.com>
set -o errexit
set -o nounset
set -o xtrace
# Set parameters.
DISK_SIZE="${DISK_SIZE-20G}"
CPU_COUNT="${CPU_COUNT-1}"
MEMORY_SIZE="${MEMORY_SIZE-4G}"
# Download and verify OpenBSD/amd64 6.6 installation images and file sets.
[ -d mirror ] || {
mkdir -p mirror-tmp/pub/OpenBSD/6.6
[ -e mirror-tmp/pub/OpenBSD/6.6/openbsd-66-base.pub ] || \
curl --output mirror-tmp/pub/OpenBSD/6.6/openbsd-66-base.pub --silent \
https://ftp.openbsd.org/pub/OpenBSD/6.6/openbsd-66-base.pub
mkdir -p mirror-tmp/pub/OpenBSD/6.6/amd64
rsync --recursive --delete --quiet \
rsync://ftp.halifax.rwth-aachen.de/openbsd/6.6/amd64/ \
mirror-tmp/pub/OpenBSD/6.6/amd64/
( cd mirror-tmp/pub/OpenBSD/6.6/amd64 && \
signify -C -q -p ../openbsd-66-base.pub -x SHA256.sig )
mv mirror-tmp mirror
}
# Create default site-specific file set.
mkdir -p mirror/pub/OpenBSD/6.6/amd64/site66
[ -d mirror/pub/OpenBSD/6.6/amd64/site66/install.site ] || \
cat << EOF > mirror/pub/OpenBSD/6.6/amd64/site66/install.site
#! /bin/ksh
set -o errexit
echo "https://cdn.openbsd.org/pub/OpenBSD" > /etc/installurl
echo "permit nopass keepenv :wheel" > /etc/doas.conf
#echo "syspatch && shutdown -r now" >> /etc/rc.firsttime
EOF
chmod +x mirror/pub/OpenBSD/6.6/amd64/site66/install.site
# Package site-specific file set.
( cd mirror/pub/OpenBSD/6.6/amd64 && \
rm -f site66.tgz && \
cd site66 && \
tar -czf ../site66.tgz . && \
cd .. && \
ls -l > index.txt )
# Create default install.conf.
ssh_pub_key="$( cat ~/.ssh/id_rsa.pub )"
[ -e mirror/install.conf ] || cat << EOF > mirror/install.conf
Change the default console to com0 = yes
Which speed should com0 use = 115200
System hostname = openbsd-vm
Password for root = *************
Allow root ssh login = no
Setup a user = puffy
Password for user = *************
Public ssh key for user = ${ssh_pub_key}
What timezone are you in = UTC
Location of sets = http
HTTP Server = 10.0.2.2
Unable to connect using https. Use http instead = yes
URL to autopartitioning template for disklabel = http://10.0.2.2/disklabel
Set name(s) = site66.tgz
Checksum test for site66.tgz failed. Continue anyway = yes
Unverified sets: site66.tgz. Continue without verification = yes
EOF
# Create default disklabel template.
[ -e mirror/disklabel ] || cat << EOF > mirror/disklabel
/ 500M
swap 1G
/tmp 1G
/var 1G
/var/www 1G
/usr 2G
/usr/X11R6 500M
/usr/local 4G
/usr/src 1M
/usr/obj 1M
/home 4G
EOF
# Wait until the HTTP server is online.
while [ ! "$( curl --silent --location --write-out '%{http_code}\n' --output /dev/null http://127.0.0.1/install.conf )" = 200 ] ;
do
( >&2 printf "Please serve the directory mirror at http://127.0.0.1 (port 80).\n" )
sleep 5
done
# Collect files to be served over TFTP.
mkdir -p tftp
[ -e tftp/auto_install ] || \
ln -s ../mirror/pub/OpenBSD/6.6/amd64/pxeboot tftp/auto_install
[ -e tftp/bsd.rd ] || \
ln -s ../mirror/pub/OpenBSD/6.6/amd64/bsd.rd tftp/bsd.rd
# Create default boot.conf.
mkdir -p tftp/etc
[ -e tftp/etc/boot.conf ] || cat << EOF > tftp/etc/boot.conf
stty com0 115200
set tty com0
boot tftp:/bsd.rd
EOF
# Create copy-on-write disk image.
[ -e openbsd-66-vm.qcow2 ] || \
qemu-img create -f qcow2 openbsd-66-vm.qcow2 "${DISK_SIZE}"
# Auto-install guest machine.
qemu-system-x86_64 \
-enable-kvm \
-m "${MEMORY_SIZE}" \
-smp "cpus=${CPU_COUNT}" \
-device e1000,netdev=n1 \
-netdev user,id=n1,hostname=openbsd-vm,tftp=tftp,bootfile=auto_install,hostfwd=tcp::2222-:22,hostfwd=tcp::8080-:80 \
-drive file=openbsd-66-vm.qcow2,media=disk,if=virtio \
-nographic
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