Propagate values from parent to child

Author: justinsb

internal/builtins/pkg_context.go

@@ -74,7 +74,7 @@ func (pc *PackageContextGenerator) Process(resourceList *framework.ResourceList)
 		updatedResources = append(updatedResources, resource)
 		if gvk.Equals(kptfileGVK) {
 			// it's a Kptfile, generate a corresponding package context
-			pkgContext, err := pkgContextResource(resource)
+			pkgContext, err := pkgContextResource(resource, resourceList.FunctionConfig)
 			if err != nil {
 				resourceList.Results = framework.Results{
 					&framework.Result{
@@ -103,7 +103,7 @@ func (pc *PackageContextGenerator) Process(resourceList *framework.ResourceList)
 
 // pkgContextResource generates package context resource from a given
 // Kptfile. The resource is generated adjacent to the Kptfile of the package.
-func pkgContextResource(kf *yaml.RNode) (*yaml.RNode, error) {
+func pkgContextResource(kf *yaml.RNode, parentConfig *yaml.RNode) (*yaml.RNode, error) {
 	cm := yaml.MustParse(AbstractPkgContext())
 
 	kptfilePath, _, err := kioutil.GetFileAnnotations(kf)
@@ -119,9 +119,17 @@ func pkgContextResource(kf *yaml.RNode) (*yaml.RNode, error) {
 			return nil, err
 		}
 	}
-	cm.SetDataMap(map[string]string{
+	data := map[string]string{
 		"name": kf.GetName(),
-	})
+	}
+	if parentConfig != nil {
+		parentConfigData := parentConfig.GetDataMap()
+		for k, v := range parentConfigData {
+			data["parent."+k] = v
+		}
+	}
+
+	cm.SetDataMap(data)
 	return cm, nil
 }