type DockerBuildInfo struct {
	Hub  string
	Tag  string
	OS   string
	Arch string
}

// NewBuildInfoFromOldString creates a BuildInfo struct based on the output
// of previous Istio components '-- version' output
func NewBuildInfoFromOldString(oldOutput string) (BuildInfo, error) {
	res := BuildInfo{}

	lines := strings.Split(oldOutput, "\n")
	for _, line := range lines {