cjones/restic-automatic-backup-scheduler
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Prefix envvars with RESTIC_ for consistencty

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Fix #63
This commit is contained in:
Erik Westrup
2022-02-01 16:59:12 +01:00
parent 4e8b8adff6
commit 79d13a1e64
4 changed files with 30 additions and 21 deletions
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24
usr/local/sbin/restic_backup.sh
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@@ -26,9 +26,9 @@ assert_envvars() {
}
assert_envvars \
B2_ACCOUNT_ID B2_ACCOUNT_KEY B2_CONNECTIONS \
BACKUP_PATHS BACKUP_TAG \
RESTIC_BACKUP_PATHS RESTIC_BACKUP_TAG \
RESTIC_BACKUP_EXCLUDE_FILE RESTIC_BACKUP_EXTRA_ARGS RESTIC_PASSWORD_FILE RESTIC_REPOSITORY RESTIC_VERBOSITY_LEVEL \
RETENTION_DAYS RETENTION_MONTHS RETENTION_WEEKS RETENTION_YEARS
RESTIC_RETENTION_DAYS RESTIC_RETENTION_MONTHS RESTIC_RETENTION_WEEKS RESTIC_RETENTION_YEARS
@@ -46,9 +46,9 @@ trap exit_hook INT TERM
# NOTE that restic will fail the backup if not all listed --exclude-files exist. Thus we should only list them if they are really all available.
## Global backup configuration.
exclusion_args="--exclude-file ${RESTIC_BACKUP_EXCLUDE_FILE}"
## Self-contained backup files per backup path. E.g. having an USB disk at /mnt/media in BACKUP_PATHS,
## Self-contained backup files per backup path. E.g. having an USB disk at /mnt/media in RESTIC_BACKUP_PATHS,
# a file /mnt/media/.backup_exclude.txt will automatically be detected and used:
for backup_path in ${BACKUP_PATHS[@]}; do
for backup_path in ${RESTIC_BACKUP_PATHS[@]}; do
if [ -f "$backup_path/.backup_exclude.txt" ]; then
exclusion_args+=" --exclude-file $backup_path/.backup_exclude.txt"
fi
@@ -65,16 +65,16 @@ wait $!
# Do the backup!
# See restic-backup(1) or http://restic.readthedocs.io/en/latest/040_backup.html
# --one-file-system makes sure we only backup exactly those mounted file systems specified in $BACKUP_PATHS, and thus not directories like /dev, /sys etc.
# --one-file-system makes sure we only backup exactly those mounted file systems specified in $RESTIC_BACKUP_PATHS, and thus not directories like /dev, /sys etc.
# --tag lets us reference these backups later when doing restic-forget.
restic backup \
--verbose=$RESTIC_VERBOSITY_LEVEL \
--one-file-system \
--tag $BACKUP_TAG \
--tag $RESTIC_BACKUP_TAG \
--option b2.connections=$B2_CONNECTIONS \
$exclusion_args \
$RESTIC_BACKUP_EXTRA_ARGS \
$BACKUP_PATHS &
$RESTIC_BACKUP_PATHS &
wait $!
# Dereference and delete/prune old backups.
@@ -82,14 +82,14 @@ wait $!
# --group-by only the tag and path, and not by hostname. This is because I create a B2 Bucket per host, and if this hostname accidentially change some time, there would now be multiple backup sets.
restic forget \
--verbose=$RESTIC_VERBOSITY_LEVEL \
--tag $BACKUP_TAG \
--tag $RESTIC_BACKUP_TAG \
--option b2.connections=$B2_CONNECTIONS \
--prune \
--group-by "paths,tags" \
--keep-daily $RETENTION_DAYS \
--keep-weekly $RETENTION_WEEKS \
--keep-monthly $RETENTION_MONTHS \
--keep-yearly $RETENTION_YEARS &
--keep-daily $RESTIC_RETENTION_DAYS \
--keep-weekly $RESTIC_RETENTION_WEEKS \
--keep-monthly $RESTIC_RETENTION_MONTHS \
--keep-yearly $RESTIC_RETENTION_YEARS &
wait $!
# Check repository for errors.