Backup the container and install it on another server

LXD
14

Acknowledging that the maintainer has said this is an abuse of the provided imaging mechanisms, I mad a simple script to backup all of my containers:

#!/usr/bin/env bash
set -ex

BACKUP_DIR=/path/to/where/backups/should/live
HOSTS=($(lxc list -c n --format csv))

for HOST in "${HOSTS[@]}"
do
    BACKUP_NAME=${HOST}-$(date +"%Y-%m-%d")

    lxc snapshot ${HOST} auto-backup
    lxc publish ${HOST}/auto-backup --alias ${BACKUP_NAME}
    lxc image export ${BACKUP_NAME} ${BACKUP_DIR}/${BACKUP_NAME}.tar.gz
    lxc image delete ${BACKUP_NAME}
    lxc delete ${HOST}/auto-backup
done
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