#!/bin/bash
set -eE -o pipefail
trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR


[[ $EUID == 0 ]] || exec sudo -E "$BASH_SOURCE" "$@"

virsh destroy demohost ||:

# there's some other ways to configure it, but by default, we get perms of this user
usermod -a -G ian libvirt-qemu
usermod -a -G traci libvirt-qemu


virsh attach-device demohost <(e "<filesystem type='mount' accessmode='mapped'> <source dir='/q'/> <target dir='/q'/> </filesystem>") --config ||:
virsh attach-device demohost <(e "<filesystem type='mount' accessmode='mapped'> <source dir='/a'/> <target dir='/a'/> </filesystem>") --config ||:

virsh start demohost
while ! timeout -s 9 5 ssh demohost :; do sleep 3; done

ssh root@demohost bash -s <<'EOFOUTER'
set -eE -o pipefail

cat >>/etc/modules <<EOF
loop
virtio
9p
9pnet
9pnet_virtio
EOF
service kmod start

cat >>/etc/fstab <<'EOF'
/a /a            9p             trans=virtio    0       0
/q /q            9p             trans=virtio    0       0
/q/p  /p  none  bind  0 0
EOF
mkdir -p /a /q /p
mount /a
mount /q
mount /p
EOFOUTER