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image.go
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image.go
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package model
import (
"encoding/json"
"strings"
logger "github.com/dmartinol/application-exporter/pkg/log"
"github.com/openshift/api/image/docker10"
imageV1 "github.com/openshift/api/image/v1"
)
type ApplicationImage interface {
ImageFullName() string
ImageName() string
ImageVersion() string
}
type Image struct {
FullName string
}
func NewImageByRegistry(imageName string) *Image {
image := &Image{FullName: imageName}
return image
}
func (i *Image) ImageFullName() string {
return i.FullName
}
func (i *Image) ImageName() string {
imageName := i.FullName[strings.LastIndex(i.FullName, "/")+1:]
if strings.Contains(imageName, ":") {
imageName = imageName[0:strings.LastIndex(imageName, ":")]
}
return imageName
}
func (i *Image) ImageVersion() string {
imageName := i.FullName[strings.LastIndex(i.FullName, "/")+1:]
if strings.Contains(imageName, ":") {
return strings.Split(imageName, ":")[1]
}
return "NA"
}
type ImageByStream struct {
FullName string
Delegate imageV1.Image
}
func NewImageByStream(imageFullName string, delegate imageV1.Image) *ImageByStream {
imageByStream := &ImageByStream{Delegate: delegate}
imageByStream.FullName = imageFullName
return imageByStream
}
func (i *ImageByStream) ImageFullName() string {
return i.FullName
}
func (i *ImageByStream) ImageName() string {
imagePath := i.onlyImagePath()
imageName := imagePath[strings.LastIndex(imagePath, "/")+1:]
if strings.Contains(imageName, ":") {
imageName = imageName[0:strings.LastIndex(imageName, ":")]
}
logger.Debugf("Image name of %s is %s", i.imageReference(), imageName)
return imageName
}
func (i *ImageByStream) ImageVersion() string {
imageName := i.onlyImagePath()
imageVersion := "NA"
if strings.LastIndex(imageName, ":") > strings.LastIndex(imageName, "/") {
imageVersion = imageName[strings.LastIndex(imageName, ":")+1:]
} else {
obj := &docker10.DockerImage{}
if len(i.Delegate.DockerImageMetadata.Raw) != 0 {
if err := json.Unmarshal(i.Delegate.DockerImageMetadata.Raw, obj); err != nil {
logger.Warnf("Cannot unmarshal DockerImageMetadata: %s", err)
} else {
logger.Debugf("Config.Labels for %s: %s", imageName, obj.Config.Labels)
imageVersion = obj.Config.Labels["version"]
}
} else {
logger.Warnf("No DockerImageMetadata for %s", i.Delegate.Name)
}
}
logger.Debugf("Image version of %s is %s", i.imageReference(), imageVersion)
return imageVersion
}
func (i *ImageByStream) onlyImagePath() string {
// Remove @sha
return strings.Split(i.imageReference(), "@")[0]
}
func (i *ImageByStream) imageReference() string {
return i.Delegate.DockerImageReference
}