machine installs Docker machine.
The machine step arranges for the Docker machine CLI to be present at the
host. The step is able to pinpoint a given version and to verify the
installation download against its sha256 sum if necessary. By default, it will
install the latest available at github. In addition, bash completion is made
available to all users of the system.
Version of Docker machine to install. This defaults to an empty string, in which case the step will detect the latest from the releases available at github.
This is the sha256 sum of the binary release available at github. When the
downloaded file does not match, the step will fail. This option is best used in
combination with a specific --version.
This environment variable is the same as the --version option.
This environment variable is the same as the --sha256 option.