agent/api/errors/errors.go
func IsInstanceTypeChangedError(err error) bool {
	if awserr, ok := err.(awserr.Error); ok {
		return strings.Contains(awserr.Message(), InstanceTypeChangedErrorMessage)
	}
	return false
}
func IsInstanceTypeChangedError(err error) bool {
	if awserr, ok := err.(awserr.Error); ok {
		return strings.Contains(awserr.Message(), InstanceTypeChangedErrorMessage)
	}
	return false
}
// IsInstanceTypeChangedError returns true if the error when
// registering the container instance is because of instance type being
// changed