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#!/bin/bash
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# @see https://www.freedesktop.org/software/systemd/man/machine-id.html
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backup_time = " $( date '+%Y%m%d%H%M%S' ) " ;
backups_folder = "/Backups/" ;
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for docker_container_name in $( docker ps --format '{{.Names}}' ) ;
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do
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echo " stop container: $docker_container_name " && docker stop " $docker_container_name "
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for source_path in $( docker inspect --format '{{ range .Mounts }}{{ if eq .Type "volume" }}{{ println .Destination }}{{ end }}{{ end }}' " $docker_container_name " ) ;
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do
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repository_name = " $( cd " $( dirname " $( readlink -f " ${ 0 } " ) " ) " && basename ` git rev-parse --show-toplevel` ) " ;
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machine_id = " $( sha256sum /etc/machine-id | head -c 64) " ;
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backup_repository_folder = " $backups_folder $machine_id / $repository_name / " ;
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destination_path = " $backup_repository_folder " " latest/ $docker_container_name $source_path " ;
log_path = " $backup_repository_folder " "log.txt" ;
backup_dir_path = " $backup_repository_folder " " diffs/ $backup_time / $docker_container_name $source_path " ;
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if [ -d " $destination_path " ]
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then
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echo " backup: $source_path " ;
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else
echo " first backup: $source_path "
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mkdir -vp " $destination_path " ;
mkdir -vp " $backup_dir_path " ;
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fi
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docker run --rm --volumes-from " $docker_container_name " -v " $backups_folder : $backups_folder " "kevinveenbirkenbach/alpine-rsync" sh -c "
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rsync -abvv --delete --delete-excluded --log-file= $log_path --backup-dir= $backup_dir_path '$source_path/' $destination_path " ;
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done
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echo " start container: $docker_container_name " && docker start " $docker_container_name " ;
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done