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Backups are defined by the service developer in the backups section of the Manifest. By default, this action is a command executed within a Docker container.
embassyOS provides a system utility for creating backups. This system utility is the duplicity library that is run inside the Docker image entitled _compat_.
The path to be backed up can be specified in the Manifest. In the create backup example below, it is the last argument:
... # create backup entrypoint: compat # Arguments to pass into the entrypoint executable. In this example, the full command run will be: `compat duplicity <package-id> /mnt/backup /root/data` args: - duplicity - <package-id> - /mnt/backup # For duplicity, the backup mount point needs to be something other than `/root`, so we default to `/root/data` - /root/data ...
For restoration purposes, it might be beneficial to ignore certain files or folders. For instance, ignore the shared/public folder that is mounted for dependencies that expose this feature as it causes data inconsistencies on restore.
In this case, create a
.backupignore file in the mounted volume directory. This file contains a list of relative paths to the ignored files.
The BTCPay Server wrapper demonstrates a good use of a backupignore template.
/datadir/.backupignore gets populated with: