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Documentation around user label is lacking

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Frederik Ring 2023-04-28 16:01:17 +02:00
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README.md
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@ -657,7 +657,22 @@ volumes:
The backup procedure is guaranteed to wait for all `pre` or `post` commands to finish before proceeding. The backup procedure is guaranteed to wait for all `pre` or `post` commands to finish before proceeding.
However there are no guarantees about the order in which they are run, which could also happen concurrently. However there are no guarantees about the order in which they are run, which could also happen concurrently.
By default the backup command is executed by the root user. It is possible to specify a custom user in container labels with the format `docker-volume-backup.[step]-[pre|post]-[user]`. The option will allow you to run a specific step command by specified user. Make sure the user exists and present in `passwd` inside the target container. By default the backup command is executed by the root user. It is possible to specify a custom user that is used to run commands in dedicated labels with the format `docker-volume-backup.[step]-[pre|post].user`:
```yml
version: '3'
services:
gitea:
image: gitea/gitea
volumes:
- backup_data:/tmp
labels:
- docker-volume-backup.archive-pre.user=git
- docker-volume-backup.archive-pre=/bin/bash -c 'cd /tmp; /usr/local/bin/gitea dump -c /data/gitea/conf/app.ini -R -f dump.zip'
```
Make sure the user exists and is present in `passwd` inside the target container.
### Encrypting your backup using GPG ### Encrypting your backup using GPG