The Pulumi Docker provider uses the Docker SDK to manage resources.
Pulumi relies on the Docker SDK to authenticate requests from your computer to Docker. Your credentials are never sent to pulumi.com.
Configuring The Provider
Once obtained, there are two ways to communicate your configuration tokens to Pulumi:
Set the environment variable
$ export DOCKER_HOST=tcp://127.0.0.1:2376/
Set them using configuration, if you prefer that they be stored alongside your Pulumi stack for easy multi-user access:
$ pulumi config set docker:host tcp://127.0.0.1:2376/