The dtr component enables Cluster to customize the Docker Trusted Registry
(DTR) configuration.
cluster:
  dtr:
    ca: "path_to/ca.pem"
    cert: "path_to/cert.pem"
    install_options: "--option1=value --option2=value"
    key: "path_to/key.pem"
    pre_pull_images: true
    version: "docker/dtr:#.#.#"
| Setting | Type | Default | Description | 
|---|---|---|---|
| ca | String | None | Path to the CA certificate | 
| cert | String | None | Path to the TLS/SSL public certificate | 
| install_options | String | None | Additional options to pass to :ref:`MSR CLI Install<msr-cli-install>’ | 
| key | String | None | Path to the TLS/SSL private key | 
| pre_pull_images | Boolean | false | Pre pull the DTR images on each node | 
| version | String | “docker/dtr:2.8.0” | Image of DTR to use |