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snapshot-style restore example (#76)

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* snapshot-style restore example

* manual backup recommendation
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@ -555,6 +555,26 @@ In case you need to restore a volume from a backup, the most straight forward pr
Depending on your setup and the application(s) you are running, this might involve other steps to be taken still. Depending on your setup and the application(s) you are running, this might involve other steps to be taken still.
---
If you want to rollback an entire volume to an earlier backup snapshot (recommended for database volumes):
- Trigger a manual backup if necessary (see `Manually triggering a backup`).
- Stop the container(s) that are using the volume.
- If volume was initially created using docker-compose, find out exact volume name using:
```console
docker volume ls
```
- Remove existing volume (the example assumes it's named `data`):
```console
docker volume rm data
```
- Create new volume with the same name and restore a snapshot:
```console
docker run --rm -it -v data:/backup/my-app-backup -v /path/to/local_backups:/archive:ro alpine tar -xvzf /archive/full_backup_filename.tar.gz
```
- Restart the container(s) that are using the volume.
### Set the timezone the container runs in ### Set the timezone the container runs in
By default a container based on this image will run in the UTC timezone. By default a container based on this image will run in the UTC timezone.