Add functional prototype

2 files changed, 120 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..4bdf37f
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+http
+openbsd-66-base.pub
+tftp
+vm.qcow2
diff --git a/run b/run
new file mode 100755
index 0000000..c2a9602
--- /dev/null
+++ b/run
@@ -0,0 +1,116 @@
+#! /bin/sh
+
+# Auto-install OpenBSD/amd64 6.6 to a QEMU guest machine.
+#
+# Inspired by:
+#
+# - https://man.openbsd.org/autoinstall
+#
+# - https://eradman.com/posts/autoinstall-openbsd.html
+#
+# - https://drewdevault.com/2018/09/10/Getting-started-with-qemu.html
+#
+# Copyright (c) 2020 Stefan Kreutz <mail@skreutz.com>
+
+set -o errexit
+set -o xtrace
+
+# Fail early if any necessary tools are missing.
+for c in curl qemu-img qemu-system-x86_64 rsync signify ssh
+do
+  command -v "$c" >/dev/null
+done
+
+# Read the public ssh key to be installed in the guest.
+ssh_pub_key="$( cat ~/.ssh/id_rsa.pub )"
+
+# Generate a response file for unattended installation.
+mkdir -p http
+cat << EOF > http/install.conf
+Change the default console to com0 = yes
+Which speed should com0 use = 115200
+System hostname = openbsd-vm
+Password for root = *************
+Public ssh key for root account = ${ssh_pub_key}
+Allow root ssh login = prohibit-password
+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
+EOF
+
+# Download OpenBSD/amd64 6.6 distribution.
+[ -e openbsd-66-base.pub ] || curl --output openbsd-66-base.pub --silent https://ftp.openbsd.org/pub/OpenBSD/6.6/openbsd-66-base.pub
+( [ -d http/pub/OpenBSD/6.6/amd64 ] && ( cd http/pub/OpenBSD/6.6/amd64 && signify -C -q -p ../../../../../openbsd-66-base.pub -x SHA256.sig ) ) || {
+  mkdir -p http/pub/OpenBSD/6.6/amd64
+  rsync --recursive --delete --quiet rsync://ftp.halifax.rwth-aachen.de/openbsd/6.6/amd64/ http/pub/OpenBSD/6.6/amd64/
+  ( cd http/pub/OpenBSD/6.6/amd64 && signify -C -q -p ../../../../../openbsd-66-base.pub -x SHA256.sig )
+}
+
+# TODO: Start HTTP server.
+# sudo python3 -m http.server --directory http 80
+
+# Collect files to be served over TFTP.
+mkdir -p tftp
+cmp -s http/pub/OpenBSD/6.6/amd64/pxeboot tftp/pxeboot || cp -a http/pub/OpenBSD/6.6/amd64/pxeboot tftp/pxeboot
+cmp -s http/pub/OpenBSD/6.6/amd64/bsd.rd tftp/bsd.rd || cp -a http/pub/OpenBSD/6.6/amd64/bsd.rd tftp/bsd.rd
+rm -f tftp/auto_install
+ln -s pxeboot tftp/auto_install
+
+# Create boot configuration.
+mkdir -p tftp/etc
+cat << EOF > tftp/etc/boot.conf
+stty com0 115200
+set tty com0
+boot tftp:/bsd.rd
+EOF
+
+# Create copy-on-write disk image.
+[ -e vm.qcow2 ] || qemu-img create -f qcow2 vm.qcow2 16G
+
+# Auto-install and start guest machine.
+#
+# network = 10.0.2.0/24
+# host    = 10.0.2.2
+# dns     = 10.0.2.3
+# guest   = 10.0.2.15-31
+qemu-system-x86_64 \
+  -enable-kvm \
+  -m 2G \
+  -device e1000,netdev=n1 \
+  -netdev user,id=n1,tftp=tftp,bootfile=auto_install,hostfwd=tcp::2222-:22 \
+  -drive file=vm.qcow2,media=disk,if=virtio \
+  -nographic
+
+# Connect with the following command:
+#
+#   ssh -o "StrictHostKeyChecking no" -o "UserKnownHostsFile /dev/null" -o "Port 2222" root@127.0.0.1
+#
+# Execute a command (add -T):
+#
+#   ssh -o "StrictHostKeyChecking no" -o "UserKnownHostsFile /dev/null" -o "Port 2222" -T root@127.0.0.1 "uptime"
+#
+# Execute a heredoc:
+#
+#   ssh -o "StrictHostKeyChecking no" -o "UserKnownHostsFile /dev/null" -o "Port 2222" -T root@127.0.0.1 << SSHEOF
+#     set -o errexit
+#     uptime
+#   SSHEOF
+#
+# Copy a file:
+#
+#   scp -o "StrictHostKeyChecking no" -o "UserKnownHostsFile /dev/null" -o "Port 2222" -r notes.txt root@127.0.0.1:
+#
+# Stop guest machine with C-a x
+#
+# Show help with C-a h
+
+# TODO: Install a site-specific file set to apply the following patches.
+#
+# echo 'https://cdn.openbsd.org/pub/OpenBSD' > /etc/installurl
+# echo 'permit keepenv :wheel' > /etc/doas.conf
+# syspatch
+# shutdown -r now