[release-2.13] Fix mapping file marshalling

.github/workflows/kind.yml

@@ -250,7 +250,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version-file: go.mod
+          go-version: 'stable'
 
       - name: Download Coverage Results
         uses: actions/download-artifact@v4

pkg/dryrun/dryrun.go

@@ -490,13 +490,13 @@ func (d *DryRunner) setupReconciler(
 	}
 
 	if d.mappingsPath != "" {
-		reader, err := os.Open(d.mappingsPath)
+		mFile, err := os.ReadFile(d.mappingsPath)
 		if err != nil {
 			return nil, err
 		}
 
 		apiMappings := []mappings.APIMapping{}
-		if err := yaml.NewDecoder(reader).Decode(&apiMappings); err != nil {
+		if err := k8syaml.Unmarshal(mFile, &apiMappings); err != nil {
 			return nil, err
 		}
 

pkg/dryrun/dryrun_test.go

@@ -91,6 +91,14 @@ func cliTest(scenarioPath string) func(t *testing.T) {
 			}
 		}
 
+		mappingsPath := path.Join(scenarioPath, "mappings.yaml")
+		if PathExists(mappingsPath) {
+			err = cmd.Flags().Set("mappings-file", mappingsPath)
+			if err != nil {
+				t.Fatal(err)
+			}
+		}
+
 		err = cmd.Execute()
 		if err != nil && !errors.Is(err, ErrNonCompliant) {
 			t.Fatal(err)

pkg/dryrun/testdata/test_mappings/input_resource.yaml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: LimitRange # limit memory usage
+metadata:
+  name: mem-limit-range
+spec:
+  limits:
+  - default:
+      memory: 512Mi
+    defaultRequest:
+      memory: 256Mi
+    type: Container

pkg/dryrun/testdata/test_mappings/mappings.yaml

@@ -0,0 +1,12 @@
+- Group: ""
+  Kind: LimitRange
+  Plural: limitranges
+  Scope: namespace
+  Singular: limitrange
+  Version: v1
+- Group: ""
+  Kind: Fake
+  Plural: fakes
+  Scope: root
+  Singular: fake
+  Version: beta1

pkg/dryrun/testdata/test_mappings/output.txt

@@ -0,0 +1,5 @@
+# Diffs:
+v1 LimitRange default/mem-limit-range:
+
+# Compliance messages:
+Compliant; notification - limitranges [mem-limit-range] found as specified in namespace default

pkg/dryrun/testdata/test_mappings/policy.yaml

@@ -0,0 +1,23 @@
+apiVersion: policy.open-cluster-management.io/v1
+kind: ConfigurationPolicy
+metadata:
+  name: hello
+  namespace: default
+spec:
+  remediationAction: enforce
+  namespaceSelector:
+    include: ["default"]
+  object-templates:
+    - complianceType: musthave
+      objectDefinition:
+        apiVersion: v1
+        kind: LimitRange # limit memory usage
+        metadata:
+          name: mem-limit-range
+        spec:
+          limits:
+          - default:
+              memory: 512Mi
+            defaultRequest:
+              memory: 256Mi
+            type: Container