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Adapted pull primary backups to hardlinks

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Kevin Veen-Birkenbach 2022-03-29 21:20:51 +02:00
parent f4b8e2b8dd
commit 0727b179a6
2 changed files with 25 additions and 16 deletions
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39
roles/native-pull-primary-backups/files/pull-remote-backup.sh
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@ -11,26 +11,35 @@ directories="$(ssh "$source_host" find "$source_path" -maxdepth 1 -type d)" || e
for backup_type_dir in $directories; do for backup_type_dir in $directories; do
if [ "$backup_type_dir" != "$source_path" ]; then if [ "$backup_type_dir" != "$source_path" ]; then
# this folder is neccessary to make restricted rsync possible: # folder which contains versions
current_version="$backup_type_dir/versions/current/" versions_dir="$backup_type_dir/versions/"
# this is the folder where the versions will be copied to: # link name of last backup
diff_store="$backup_type_dir/versions/$(date '+%Y%m%d%H%M%S')/" latest_version_link="$backup_type_dir/latest"
# this is the folder which contains the actual backup: # this folder contains the last backup
latest_path="$backup_type_dir/latest/" latest_version_dir="$versions_dir$(date '+%Y%m%d%H%M%S')/"
# this is the link name of the previous version
previous_version_link="$backup_type_dir/previous"
# source path of the backup files: # source path of the backup files:
remote_source_path="$source_host:$latest_path" remote_source_path="$source_host:$latest_version_link/"
# file in which the logs will be saved:
log_path="$backup_type_dir/log.txt" #identifiy previous version
versions=( $(basename -a "$versions_dir"*/ | sort) )|| exit 1
last_version="${versions[-1]}" || exit 1
previous_version_dir="$versions_dir$last_version/"
# create working folders: # create working folders:
mkdir -vp "$latest_path" mkdir -vp "$latest_version_dir"
mkdir -vp "$diff_store"
rm -vr "$current_version" # delete links
mkdir -vp "$current_version" rm -v "$latest_version_link"
rm -v "$previous_version_link"
# create links
ln -vs "$latest_version_dir" "$latest_version_link" || exit 1
ln -vs "$previous_version_dir" "$previous_version_link"|| exit 1
# do backup: # do backup:
rsync -abP --delete --delete-excluded --rsync-path="sudo rsync" --log-file="$log_path" --backup-dir="$current_version" "$remote_source_path" "$latest_path" || ((errors+=1)); rsync -abP --delete --delete-excluded --rsync-path="sudo rsync" --link-dest="$previous_version_link" "$remote_source_path" "$latest_version_link" || ((errors+=1));
mv -v "$current_version"* "$diff_store"
fi fi
done done
exit $errors; exit $errors;

2
roles/native-user-backup/templates/ssh-wrapper.sh.j2
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@ -9,7 +9,7 @@ fi
# define executable commands # define executable commands
hashed_machine_id_command="sha256sum /etc/machine-id"; hashed_machine_id_command="sha256sum /etc/machine-id";
find_command="find /Backups/{{hashed_machine_id.stdout}}/ -maxdepth 1 -type d"; find_command="find /Backups/{{hashed_machine_id.stdout}}/ -maxdepth 1 -type d";
rsync_command="sudo rsync --server --sender -blogDtpre.iLsfxCIvu --backup-dir /Backups/{{hashed_machine_id.stdout}}/docker-volume-backup/diffs/current/ . /Backups/{{hashed_machine_id.stdout}}/docker-volume-backup/latest/" rsync_command="sudo rsync --server --sender -blogDtpre.iLsfxCIvu . /Backups/{{hashed_machine_id.stdout}}/docker-volume-backup/latest"
# filter commands # filter commands
case "$SSH_ORIGINAL_COMMAND" in case "$SSH_ORIGINAL_COMMAND" in