Fix namespace export error when resources reference deleted resources

server/codegen/assets/templates/gocode/envoy/store_encode.go.tpl

@@ -215,16 +215,9 @@ func (e StoreEncoder) encode{{.expIdent}}(ctx context.Context, p envoyx.EncodePa
 	var auxID uint64
 	err = func() (err error) {
 		for fieldLabel, ref := range n.References {
-			rn := tree.ParentForRef(n, ref)
-			if rn == nil {
-				err = fmt.Errorf("parent reference %v not found", ref)
-				return
-			}
-
-			auxID = rn.Resource.GetID()
+			auxID = safeParentID(tree, n, ref)
 			if auxID == 0 {
-				err = fmt.Errorf("parent reference does not provide an identifier")
-				return
+				continue
 			}
 
 			err = n.Resource.SetValue(fieldLabel, 0, auxID)
@@ -508,4 +501,13 @@ func (e StoreEncoder) makeNamespaceFilter(scope *envoyx.Node, refs map[string]*e
 
 	return
 }
-{{ end }}
+{{ end }}
+
+func safeParentID(tt envoyx.Traverser, n *envoyx.Node, ref envoyx.Ref) (out uint64) {
+	rn := tt.ParentForRef(n, ref)
+	if rn == nil {
+		return
+	}
+
+	return rn.Resource.GetID()
+}

server/codegen/assets/templates/gocode/envoy/yaml_encode.go.tpl

@@ -294,3 +294,12 @@ func (e YamlEncoder) getWriter(p envoyx.EncodeParams) (out io.Writer, err error)
 	err = errors.Errorf("YAML encoder expects a writer conforming to io.Writer interface")
 	return
 }
+
+func safeParentIdentifier(tt envoyx.Traverser, n *envoyx.Node, ref envoyx.Ref) (out string) {
+	aux := tt.ParentForRef(n, ref)
+	if aux == nil {
+		return ref.Identifiers.FriendlyIdentifier()
+	}
+
+	return aux.Identifiers.FriendlyIdentifier()
+}