apiv2: Enable filtering images by ID

It is more practical for API usage and also it is more in sync how
filtering of containers works.

Signed-off-by: Matej Marusak <mmarusak@redhat.com>

2 files changed, 10 insertions, 0 deletions

diff --git a/libpod/image/filters.go b/libpod/image/filters.go
index d545f1bfc..de10f9443 100644
--- a/libpod/image/filters.go
+++ b/libpod/image/filters.go
@@ -102,6 +102,13 @@ func ReferenceFilter(ctx context.Context, referenceFilter string) ResultFilter {
 	}
 }
 
+// IdFilter allows you to filter by image Id
+func IdFilter(idFilter string) ResultFilter {
+	return func(i *Image) bool {
+		return i.ID() == idFilter
+	}
+}
+
 // OutputImageFilter allows you to filter by an a specific image name
 func OutputImageFilter(userImage *Image) ResultFilter {
 	return func(i *Image) bool {
@@ -165,6 +172,8 @@ func (ir *Runtime) createFilterFuncs(filters []string, img *Image) ([]ResultFilt
 		case "reference":
 			referenceFilter := strings.Join(splitFilter[1:], "=")
 			filterFuncs = append(filterFuncs, ReferenceFilter(ctx, referenceFilter))
+		case "id":
+			filterFuncs = append(filterFuncs, IdFilter(splitFilter[1]))
 		default:
 			return nil, errors.Errorf("invalid filter %s ", splitFilter[0])
 		}
diff --git a/pkg/api/server/register_images.go b/pkg/api/server/register_images.go
index f082c5fec..cc5be8086 100644
--- a/pkg/api/server/register_images.go
+++ b/pkg/api/server/register_images.go
@@ -621,6 +621,7 @@ func (s *APIServer) registerImagesHandlers(r *mux.Router) error {
 	//        - `dangling=true`
 	//        - `label=key` or `label="key=value"` of an image label
 	//        - `reference`=(`<image-name>[:<tag>]`)
+	//        - `id`=(`<image-id>`)
 	//        - `since`=(`<image-name>[:<tag>]`,  `<image id>` or `<image@digest>`)
 	//     type: string
 	// produces: