mirror of
https://github.com/offen/docker-volume-backup.git
synced 2024-11-26 23:20:28 +01:00
Frederik Ring
0bb94a2f56
* Set up documentation site using jekyll * Add workflow for deploying docs * Ini formatting is hard to read * Add instructions on how to run docs locally * Work through docs * Remove content from README * Miscellaneous fixes * Fix artifact upload
35 lines
1.1 KiB
Markdown
35 lines
1.1 KiB
Markdown
---
|
|
title: Automatically prune old backups
|
|
layout: default
|
|
parent: How Tos
|
|
nav_order: 3
|
|
---
|
|
|
|
# Automatically prune old backups
|
|
|
|
When `BACKUP_RETENTION_DAYS` is configured, the command will check if there are any archives in the remote storage backend(s) or local archive that are older than the given retention value and rotate these backups away.
|
|
|
|
{: .note }
|
|
Be aware that this mechanism looks at __all files in the target bucket or archive__, which means that other files that are older than the given deadline are deleted as well.
|
|
In case you need to use a target that cannot be used exclusively for your backups, you can configure `BACKUP_PRUNING_PREFIX` to limit which files are considered eligible for deletion:
|
|
|
|
```yml
|
|
version: '3'
|
|
|
|
services:
|
|
# ... define other services using the `data` volume here
|
|
backup:
|
|
image: offen/docker-volume-backup:v2
|
|
environment:
|
|
BACKUP_FILENAME: backup-%Y-%m-%dT%H-%M-%S.tar.gz
|
|
BACKUP_PRUNING_PREFIX: backup-
|
|
BACKUP_RETENTION_DAYS: '7'
|
|
volumes:
|
|
- ${HOME}/backups:/archive
|
|
- data:/backup/my-app-backup:ro
|
|
- /var/run/docker.sock:/var/run/docker.sock:ro
|
|
|
|
volumes:
|
|
data:
|
|
```
|