mirror of
https://github.com/offen/docker-volume-backup.git
synced 2024-11-14 10:30:27 +01:00
41 lines
1.4 KiB
Markdown
41 lines
1.4 KiB
Markdown
|
---
|
||
|
|
title: Define different retention schedules
|
||
|
|
layout: default
|
||
|
|
parent: How Tos
|
||
|
|
nav_order: 9
|
||
|
|
---
|
||
|
|
|
||
|
|
# Define different retention schedules
|
||
|
|
|
||
|
|
If you want to manage backup retention on different schedules, the most straight forward approach is to define a dedicated configuration for retention rule using a different prefix in the `BACKUP_FILENAME` parameter and then run them on different cron schedules.
|
||
|
|
|
||
|
|
For example, if you wanted to keep daily backups for 7 days, weekly backups for a month, and retain monthly backups forever, you could create three configuration files and mount them into `/etc/dockervolumebackup/conf.d`:
|
||
|
|
|
||
|
|
```ini
|
||
|
|
# 01daily.conf
|
||
|
|
BACKUP_FILENAME="daily-backup-%Y-%m-%dT%H-%M-%S.tar.gz"
|
||
|
|
# run every day at 2am
|
||
|
|
BACKUP_CRON_EXPRESSION="0 2 * * *"
|
||
|
|
BACKUP_PRUNING_PREFIX="daily-backup-"
|
||
|
|
BACKUP_RETENTION_DAYS="7"
|
||
|
|
```
|
||
|
|
|
||
|
|
```ini
|
||
|
|
# 02weekly.conf
|
||
|
|
BACKUP_FILENAME="weekly-backup-%Y-%m-%dT%H-%M-%S.tar.gz"
|
||
|
|
# run every monday at 3am
|
||
|
|
BACKUP_CRON_EXPRESSION="0 3 * * 1"
|
||
|
|
BACKUP_PRUNING_PREFIX="weekly-backup-"
|
||
|
|
BACKUP_RETENTION_DAYS="31"
|
||
|
|
```
|
||
|
|
|
||
|
|
```ini
|
||
|
|
# 03monthly.conf
|
||
|
|
BACKUP_FILENAME="monthly-backup-%Y-%m-%dT%H-%M-%S.tar.gz"
|
||
|
|
# run every 1st of a month at 4am
|
||
|
|
BACKUP_CRON_EXPRESSION="0 4 1 * *"
|
||
|
|
```
|
||
|
|
|
||
|
|
{: .note }
|
||
|
|
While it's possible to define colliding cron schedules for each of these configurations, you might need to adjust the value for `LOCK_TIMEOUT` in case your backups are large and might take longer than an hour.
|