docker/dtr dumpcerts

Estimated reading time: 1 minute

Dump out the TLS certificates used by this DTR instance


docker run -i --rm docker/dtr \
    dumpcerts [command options] > backup.tar


This command creates a backup of the certificates used by DTR for communicating across replicas with TLS.


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
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