refactor: Add registry pkg registry scanner (#933)

Signed-off-by: Ishita Sequeira <ishiseq29@gmail.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/registry-scanner/pkg/cache/cache.go b/registry-scanner/pkg/cache/cache.go
new file mode 100644
index 0000000..1ceef66
--- /dev/null
+++ b/registry-scanner/pkg/cache/cache.go
@@ -0,0 +1,20 @@
+package cache
+
+import (
+	"github.com/argoproj-labs/argocd-image-updater/registry-scanner/pkg/tag"
+)
+
+type ImageTagCache interface {
+	HasTag(imageName string, imageTag string) bool
+	GetTag(imageName string, imageTag string) (*tag.ImageTag, error)
+	SetTag(imageName string, imgTag *tag.ImageTag)
+	ClearCache()
+	NumEntries() int
+}
+
+// KnownImage represents a known image and the applications using it, without
+// any version/tag information.
+type KnownImage struct {
+	ImageName string
+	// Applications []string
+}