Function GetStrippedDockerImageName

pkg/util/dockerfile/get.go:16–42

GetStrippedDockerImageName returns a tag stripped image name and checks if it's a valid image name

(imageName string)

// GetStrippedDockerImageName returns a tag stripped image name and checks if it's a valid image name
func GetStrippedDockerImageName(imageName string) (string, string, error) {
	imageName = strings.TrimSpace(imageName)
	
	// Check if we can parse the name
	ref, err := reference.ParseNormalizedNamed(imageName)
	if err != nil {
		return "", "", err
	}
	
	// Check if there was a tag
	tag := ""
	if refTagged, ok := ref.(reference.NamedTagged); ok {
		tag = refTagged.Tag()
	}
	
	repoInfo, err := dockerregistry.ParseRepositoryInfo(ref)
	if err != nil {
		return "", "", err
	}
	
	if repoInfo.Index.Official {
		// strip docker.io and library from image
		return strings.TrimPrefix(strings.TrimPrefix(reference.TrimNamed(ref).Name(), repoInfo.Index.Name+"/library/"), repoInfo.Index.Name+"/"), tag, nil
	}
	
	return reference.TrimNamed(ref).Name(), tag, nil
}

// GetPorts retrieves all the exported ports from a dockerfile
func GetPorts(filename string) ([]int, error) {