drivers/google/compute_util.go
func (c *ComputeUtil) configureInstance(d *Driver) error {
	log.Infof("Configuring instance")

	instance, err := c.instance()
	if err != nil {
		return err
	}

	if err := c.addFirewallTag(instance); err != nil {
		return err
	}

	return c.uploadSSHKey(instance, d.GetSSHKeyPath())
}
func (c *ComputeUtil) configureInstance(d *Driver) error {
	log.Infof("Configuring instance")

	instance, err := c.instance()
	if err != nil {
		return err
	}

	if err := c.addFirewallTag(instance); err != nil {
		return err
	}

	return c.uploadSSHKey(instance, d.GetSSHKeyPath())
}
// configureInstance configures an existing instance for use with Docker Machine.