#!/bin/bash -e

START=$1
BACKUP_DIR="/root/backup"

MACHINES=""
for nspawn in $(ls /etc/systemd/nspawn/*.nspawn); do
    nspawn_file=$(basename $nspawn)
    machine=${nspawn_file%.*}
    if [ -d "/var/lib/risotto/srv/$machine" ]; then
        MACHINES="$MACHINES$machine "
    fi
done

cd /var/lib/risotto/srv/
mkdir -p "$BACKUP_DIR"
for machine in $MACHINES; do
    machinectl stop $machine || true
    while true; do
        machinectl status "$machine" > /dev/null 2>&1 || break
        sleep 1
    done
    BACKUP_FILE="$BACKUP_DIR/backup_$machine.tar.bz2"
    rm -f "$BACKUP_FILE"
    tar -cvJf $BACKUP_FILE $machine
done

if [ -z "$START" ]; then
    machinectl start $MACHINES
fi

exit 0