2020-10-11 18:39:06 +02:00
#!/bin/bash
2021-08-19 13:43:22 +02:00
# Just backups volumes of running containers
# If rsync stucks consider:
2020-12-29 11:11:08 +01:00
# @see https://stackoverflow.com/questions/20773118/rsync-suddenly-hanging-indefinitely-during-transfers
2021-08-19 13:43:22 +02:00
#
2021-08-24 19:58:28 +02:00
echo "start volume backups..."
backup_time = " $( date '+%Y%m%d%H%M%S' ) " &&
backups_folder = "/Backups/" &&
repository_name = " $( cd " $( dirname " $( readlink -f " ${ 0 } " ) " ) " && basename ` git rev-parse --show-toplevel` ) " &&
machine_id = " $( sha256sum /etc/machine-id | head -c 64) " &&
backup_repository_folder = " $backups_folder $machine_id / $repository_name / " || exit 1
for volume_name in $( docker volume ls --format '{{.Name}}' )
2020-10-11 18:39:06 +02:00
do
2021-08-24 19:58:28 +02:00
echo " start backup routine for volume: $volume_name " &&
containers = " $( docker ps --filter volume = " $volume_name " --format '{{.Names}}' ) " &&
containers_array = ( $containers ) &&
container = ${ containers_array [0] } || exit 1
2021-08-20 09:58:10 +02:00
if [ -z " $containers " ]
then
2021-08-24 19:58:28 +02:00
echo "skipped due to no running containers using this volume." || exit 1
2021-08-20 09:58:10 +02:00
else
2021-08-24 19:58:28 +02:00
echo "stop containers:" && docker stop $containers || exit 1
2021-08-20 09:58:10 +02:00
for source_path in $( docker inspect --format " {{ range .Mounts }}{{ if eq .Type \"volume\"}}{{ if eq .Name \" $volume_name \"}}{{ println .Destination }}{{ end }}{{ end }}{{ end }} " " $container " ) ;
do
2021-08-24 19:58:28 +02:00
destination_path = " $backup_repository_folder " " latest/ $volume_name " &&
raw_destination_path = " $destination_path /raw " &&
prepared_destination_path = " $destination_path /prepared " &&
log_path = " $backup_repository_folder " "log.txt" &&
backup_dir_path = " $backup_repository_folder " " diffs/ $backup_time / $volume_name " &&
raw_backup_dir_path = " $backup_dir_path /raw " &&
prepared_backup_dir_path = " $backup_dir_path /prepared " || exit 1
2021-08-20 09:58:10 +02:00
if [ -d " $destination_path " ]
then
2021-08-24 19:58:28 +02:00
echo " backup volume: $volume_name " || exit 1
2021-08-20 09:58:10 +02:00
else
2021-08-24 19:58:28 +02:00
echo " first backup volume: $volume_name " &&
mkdir -vp " $raw_destination_path " &&
mkdir -vp " $raw_backup_dir_path " &&
mkdir -vp " $prepared_destination_path " &&
mkdir -vp " $prepared_backup_dir_path " || exit 1
2021-08-20 09:58:10 +02:00
fi
docker run --rm --volumes-from " $container " -v " $backups_folder : $backups_folder " "kevinveenbirkenbach/alpine-rsync" sh -c "
2021-08-24 19:58:28 +02:00
rsync -abP --delete --delete-excluded --log-file= $log_path --backup-dir= $raw_backup_dir_path '$source_path/' $raw_destination_path " &&
echo "start containers:" && docker start $containers || exit 1
2021-08-20 09:58:10 +02:00
done
fi
2021-08-24 19:58:28 +02:00
echo " end backup routine for volume: $volume_name " || exit 1
2020-10-11 18:39:06 +02:00
done
2021-08-24 19:58:28 +02:00
echo "finished backup routine." || exit 1