#!/bin/bash
# Copyright (C) 2016 Ian Kelling

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at

#     http://www.apache.org/licenses/LICENSE-2.0

# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


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

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

usage() {
    cat <<'EOF'
usage: $0 [-h|--help] [SERVER]
Kexec this or a remote machine using host faiserver

If SERVER argument, ssh to root@SERVER before doing kexec. This does
what pxe would do, but skipping boot sequence up to and including the
pxe dhcp.

EOF
    exit $1
}
case $1 in
    -h|--help) usage ;;
esac


if [[ $1 ]]; then
    prefix="ssh root@$1"
fi
$prefix touch /tmp/keyscript-off
$prefix pxe-kexec -n --ignore-whitelist -l fai-generated faiserver