#!/bin/bash
# Basic shell script to backup required LXD parts ##
## Backup and restore LXD config ##
## Today's date ##

if [[ $1 != 'virtual-machine' ]] && [[ $1 != 'container' ]]; then
	echo "use $0 virtual-machine|container"
	exit
fi
NOW=$(date +'%Y-%m-%d')

echo $(date) "Starting LXC backup ..."
## Dump LXD server config ##
echo $(date) "Making backup of lxd.config ..."
lxd init --dump >"/nfs/nas/LXD-Backup/lxd.config.${NOW}"

## Dump all instances list ##
echo $(date) "Making backup of lxd.instances.list ..."
lxc list >"/nfs/nas/LXD-Backup/lxd.instances.list.${NOW}"

## Make sure we know LXD version too ##
echo $(date) "Making backup of lxd.version ..."
snap list lxd >"/nfs/nas/LXD-Backup/lxd-version.${NOW}"

## Backup all container Instances
for i in $(lxc list type=$1 -c n --format csv); do
	echo $(date) "Making backup of ${i} ..."
	lxc export "${i}" "/nfs/nas/LXD-Backup/${i}-backup-${NOW}.tar.xz" --optimized-storage
done
echo $(date) "LXD backup ended."