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images.go
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/
images.go
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package images
import (
"strings"
"github.com/acorn-io/baaah/pkg/router"
"github.com/acorn-io/baaah/pkg/typed"
v1 "github.com/acorn-io/runtime/pkg/apis/internal.acorn.io/v1"
"github.com/acorn-io/runtime/pkg/tags"
"github.com/google/go-containerregistry/pkg/name"
apierror "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
kclient "sigs.k8s.io/controller-runtime/pkg/client"
)
func MigrateRemoteImages(req router.Request, _ router.Response) error {
image := req.Object.(*v1.ImageInstance)
if !image.ZZ_Remote || image.Repo == "" || image.Digest == "" {
return nil
}
apps := &v1.AppInstanceList{}
if err := req.List(apps, &kclient.ListOptions{}); err != nil {
return err
}
for _, app := range apps.Items {
if app.Status.AppImage.ID == image.Name && app.Status.AppImage.Digest == image.Digest {
app.Status.AppImage.ID = image.Repo
if err := req.Client.Status().Update(req.Ctx, &app); err != nil {
return err
}
}
}
return req.Client.Delete(req.Ctx, image)
}
func CreateImages(req router.Request, _ router.Response) error {
app := req.Object.(*v1.AppInstance)
if app.Status.AppImage.ID == "" {
return nil
}
repo, err := getRepo(req, app)
if err != nil {
return nil
}
return createNestedReferences(req, app, repo)
}
func createNestedReferences(req router.Request, app *v1.AppInstance, repo string) error {
for _, imageData := range typed.Concat(app.Status.AppImage.ImageData.Acorns, app.Status.AppImage.ImageData.Images) {
if !tags.IsLocalReference(imageData.Image) {
continue
}
imageName := strings.TrimPrefix(imageData.Image, "sha256:")
nestedImage := &v1.ImageInstance{}
err := req.Get(nestedImage, app.Namespace, imageName)
if err == nil {
continue
}
if apierror.IsNotFound(err) {
err = req.Client.Create(req.Ctx, &v1.ImageInstance{
ObjectMeta: metav1.ObjectMeta{
Name: imageName,
Namespace: app.Namespace,
},
Repo: repo,
Digest: "sha256:" + imageName,
})
}
if err != nil {
return err
}
}
return nil
}
func getRepo(req router.Request, app *v1.AppInstance) (string, error) {
var (
imageName = app.Status.AppImage.ID
)
if tags.IsLocalReference(imageName) {
image := &v1.ImageInstance{}
if err := req.Get(image, app.Namespace, imageName); err != nil {
return "", err
}
return image.Repo, nil
}
ref, err := name.ParseReference(imageName, name.WithDefaultTag(""))
if err != nil {
return "", err
}
return ref.Context().String(), nil
}