Backup Docker container configurations and volumes

docker_backup.sh

#! /usr/bin/env bash

DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
DATE=$(date +%Y-%m-%d)
BACKUP_DIR=${DIR}/${DATE}

echo "Backing up containers"
mkdir -p $BACKUP_DIR/containers/
for container in $(docker ps -qa)
do
    name=$(docker inspect --format '{{.Name}}' $container | sed -e 's/\///')
    echo "$name"
    docker inspect $name > $BACKUP_DIR/containers/${name}.json
done


echo "Backing up volumes"
mkdir -p $BACKUP_DIR/volumes/
for volume in $(docker volume ls -q)
do
    echo "$volume"
    docker run --rm -v ${volume}:/data:ro -v $BACKUP_DIR/volumes:/backup debian tar -czf /backup/${volume}.tgz -C /data .
done