fix: release_isc reset, archive refactored

Signed-off-by: Paul Bastide <[email protected]>

Author: prb112

internal/e2e/templates/isc_templates/release_isc.yaml

@@ -3,10 +3,6 @@ kind: ImageSetConfiguration
 apiVersion: mirror.openshift.io/v2alpha1
 mirror:
   platform:
-    architectures:
-      - "multi"
-      - "ppc64le"
-      - "amd64"
     channels:
     - name: {{.}} 
     graph: true

internal/pkg/archive/archive.go

@@ -144,9 +144,15 @@ func (o *MirrorArchive) addImagesDiff(ctx context.Context, collectedImages []v2a
 			return nil, fmt.Errorf("unable to find blobs corresponding to %s: %w", img.Destination, err)
 		}
 
-		if err := handleSignatureErrors(img, err); err != nil {
+		// Handle signature errors - only return error if it's a fatal signature error
+		if sigHandleErr := handleSignatureErrors(img, err); sigHandleErr != nil {
 			var archiveErr *ArchiveError
-			if errors.As(err, &archiveErr) && archiveErr.ReleaseErr != nil {
+			if errors.As(sigHandleErr, &archiveErr) && archiveErr.ReleaseErr != nil {
+				// For release images, signature errors should not be fatal
+				// Log the error but continue processing
+				o.logger.Warn("signature error for release image %s: %v", img.Destination, archiveErr.ReleaseErr)
+			} else if errors.As(sigHandleErr, &archiveErr) {
+				// For other image types, return the error
 				return nil, archiveErr
 			}
 		}