drivers/azure/azure.go
func (d *Driver) Start() error {
	if err := d.checkLegacyDriver(true); err != nil {
		return err
	}

	c, err := d.newAzureClient()
	if err != nil {
		return err
	}
	return c.StartVirtualMachine(d.ResourceGroup, d.naming().VM())
}
func (d *Driver) Start() error {
	if err := d.checkLegacyDriver(true); err != nil {
		return err
	}

	c, err := d.newAzureClient()
	if err != nil {
		return err
	}
	return c.StartVirtualMachine(d.ResourceGroup, d.naming().VM())
}
// Start issues a power on for the virtual machine instance.