def finished_configuring
      Docker.options = @docker_options_for_cert.merge(docker_options)

      return self unless @docker_auth_needed
      Docker.authenticate! username: @docker_auth_user, password: @docker_auth_password, email: @docker_auth_email
      @docker_auth_needed = false
      self
    end
def finished_configuring
      Docker.options = @docker_options_for_cert.merge(docker_options)

      return self unless @docker_auth_needed
      Docker.authenticate! username: @docker_auth_user, password: @docker_auth_password, email: @docker_auth_email
      @docker_auth_needed = false
      self
    end
Called to do any necessary setup to allow staged configuration. These involve:
 - Setting Docker.options based on the cert path
 - Calling Docker.authenticate! with the login parameters, if these were entered
 @return [Config] self for chaining