#!/bin/bash -l
set -x

# Assumes pxe config for dhcp has been setup.
# Deploy fai configuration to faiserver,
# then start a virtual machine to test the config.

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

redeploy=false
if [[ $1 == -r ]]; then
    redeploy=true
fi

disk_count=2

script_dir=$(dirname $(readlink -f "$BASH_SOURCE"))

if [[ $script_dir == /a/bin/* ]]; then
    rm -rf /a/tmp/fai2
    mkdir -p /a/tmp
    cp -ar /a/bin/fai /a/tmp/fai2
    exec /a/tmp/fai2/${BASH_SOURCE##*/} "$@"
fi

cd $script_dir


new_disk=false
[[ ! $1 ]] || new_disk=true

if [[ $0 == *arch-revm ]]; then
    # via osinfo-query os. guessing arch is closest to latest fedora.
    variant=fedora22
else
    if $redeploy; then
        ./fai-redep
    fi
    variant=debian8
fi

name=demohost

s virshrm $name ||:


disk_arg=()
for ((i=1; i <= disk_count; i++)); do
    f=/var/lib/libvirt/images/${name}$i
    disk_arg+=("--disk path=$f")
    if $new_disk || [[ ! -e $f ]]; then
        s rm -f $f
        s qemu-img create -o preallocation=metadata -f qcow2 $f 20G
    fi
done

if [[ $SSH_CLIENT ]]; then
    console_arg=--noautoconsole
else
    console_arg='&'
fi

# --cpu host: this causes mkfs.btrfs to fail with a stack trace which began
# something like:
# init_module+0x108/0x1000 [raid6_pq]
s virt-install --os-variant $variant  -n $name --pxe -r 2048 --vcpus 1 \
  ${disk_arg[*]} -w bridge=br0,mac=52:54:00:9c:ef:ad \
  --graphics spice,listen=0.0.0.0 $console_arg

if [[ ${0##*/} == arch-revm ]]; then
    sleep 80
    ./arch-init-remote $name
fi