docker/dtr backup
Estimated reading time: 1 minuteBackup a DTR cluster to a tar file and stream it to stdout
Usage
docker run -i --rm docker/dtr \
backup [command options] > backup.tar
Description
This command creates a backup of configurations and image metadata, in a tar file. It can be used to make periodic backups of a DTR installation.
This command only creates backups of configurations, and image metadata. It does not backup the Docker images stored in your registry.
You should implement a separate backup policy for the Docker images stored in your registry, taking in consideration whether your DTR installation is configured to store images on the filesystem or using a cloud provider.
WARNING: This backup contains sensitive information and should be stored securely.
Options
| Option | Description |
|---|---|
--ucp-url |
Specify the UCP controller URL including domain and port |
--ucp-username |
Specify the UCP admin username |
--ucp-password |
Specify the UCP admin password |
--debug |
Enable debug mode, provides additional logging |
--hub-username |
Specify the Docker Hub username for pulling images |
--hub-password |
Specify the Docker Hub password for pulling images |
--ucp-insecure-tls |
Disable TLS verification for UCP |
--ucp-ca |
Use a PEM-encoded TLS CA certificate for UCP |
--existing-replica-id |
ID of an existing replica in a cluster |
--config-only |
Backup/restore only the configurations of DTR and not the database |