add: GetImagesAndAliasesFromApplication to retrieve images with aliases

fix: now using alias to retrieve annotations when updating Helm type app

Signed-off-by: David Vidal Villamide <david@askharilabs.com>

pkg/argocd/argocd.go

@@ -503,6 +503,24 @@ func GetImagesFromApplication(app *v1alpha1.Application) image.ContainerImageLis
 	return images
 }
 
+// GetImagesFromApplicationImagesAnnotation returns the list of known images for the given application from the images annotation
+func GetImagesAndAliasesFromApplication(app *v1alpha1.Application) image.ContainerImageList {
+	images := GetImagesFromApplication(app)
+
+	// We update the ImageAlias field of the Images found in the app.Status.Summary.Images list.
+	for _, img := range *parseImageList(app.Annotations) {
+		if image := images.ContainsImage(img, false); image != nil {
+			if img.ImageAlias == "" {
+				image.ImageAlias = img.ImageName
+			} else {
+				image.ImageAlias = img.ImageAlias
+			}
+		}
+	}
+
+	return images
+}
+
 // GetApplicationTypeByName first retrieves application with given appName and
 // returns its application type
 func GetApplicationTypeByName(client ArgoCD, appName string) (ApplicationType, error) {

pkg/argocd/argocd_test.go

@@ -79,6 +79,65 @@ func Test_GetImagesFromApplication(t *testing.T) {
 	})
 }
 
+func Test_GetImagesAndAliasesFromApplication(t *testing.T) {
+	t.Run("Get list of images from application", func(t *testing.T) {
+		application := &v1alpha1.Application{
+			ObjectMeta: v1.ObjectMeta{
+				Name:      "test-app",
+				Namespace: "argocd",
+			},
+			Spec: v1alpha1.ApplicationSpec{},
+			Status: v1alpha1.ApplicationStatus{
+				Summary: v1alpha1.ApplicationSummary{
+					Images: []string{"nginx:1.12.2", "that/image", "quay.io/dexidp/dex:v1.23.0"},
+				},
+			},
+		}
+		imageList := GetImagesAndAliasesFromApplication(application)
+		require.Len(t, imageList, 3)
+		assert.Equal(t, "nginx", imageList[0].ImageName)
+		assert.Equal(t, "that/image", imageList[1].ImageName)
+		assert.Equal(t, "dexidp/dex", imageList[2].ImageName)
+	})
+
+	t.Run("Get list of images and image aliases from application that has no images", func(t *testing.T) {
+		application := &v1alpha1.Application{
+			ObjectMeta: v1.ObjectMeta{
+				Name:      "test-app",
+				Namespace: "argocd",
+			},
+			Spec: v1alpha1.ApplicationSpec{},
+			Status: v1alpha1.ApplicationStatus{
+				Summary: v1alpha1.ApplicationSummary{},
+			},
+		}
+		imageList := GetImagesAndAliasesFromApplication(application)
+		assert.Empty(t, imageList)
+	})
+
+	t.Run("Get list of images and aliases from application annotations", func(t *testing.T) {
+		application := &v1alpha1.Application{
+			ObjectMeta: v1.ObjectMeta{
+				Name:      "test-app",
+				Namespace: "argocd",
+				Annotations: map[string]string{
+					common.ImageUpdaterAnnotation: "webserver=nginx",
+				},
+			},
+			Spec: v1alpha1.ApplicationSpec{},
+			Status: v1alpha1.ApplicationStatus{
+				Summary: v1alpha1.ApplicationSummary{
+					Images: []string{"nginx:1.12.2"},
+				},
+			},
+		}
+		imageList := GetImagesAndAliasesFromApplication(application)
+		require.Len(t, imageList, 1)
+		assert.Equal(t, "nginx", imageList[0].ImageName)
+		assert.Equal(t, "webserver", imageList[0].ImageAlias)
+	})
+}
+
 func Test_GetApplicationType(t *testing.T) {
 	t.Run("Get application of type Helm", func(t *testing.T) {
 		application := &v1alpha1.Application{

pkg/argocd/update.go

@@ -416,15 +416,17 @@ func marshalParamsOverride(app *v1alpha1.Application, originalData []byte) ([]by
 		}
 
 		if strings.HasPrefix(app.Annotations[common.WriteBackTargetAnnotation], common.HelmPrefix) {
-			images := GetImagesFromApplication(app)
+			images := GetImagesAndAliasesFromApplication(app)
 
 			for _, c := range images {
-				helmAnnotationParamName, helmAnnotationParamVersion := getHelmParamNamesFromAnnotation(app.Annotations, c.ImageName)
+				helmAnnotationParamName := c.GetParameterHelmImageName(app.Annotations)
+				helmAnnotationParamVersion := c.GetParameterHelmImageTag(app.Annotations)
+
 				if helmAnnotationParamName == "" {
-					return nil, fmt.Errorf("could not find an image-name annotation for image %s", c.ImageName)
+					return nil, fmt.Errorf("could not find an image-name annotation for image %s", c.ImageAlias)
 				}
 				if helmAnnotationParamVersion == "" {
-					return nil, fmt.Errorf("could not find an image-tag annotation for image %s", c.ImageName)
+					return nil, fmt.Errorf("could not find an image-tag annotation for image %s", c.ImageAlias)
 				}
 
 				helmParamName := getHelmParam(appSource.Helm.Parameters, helmAnnotationParamName)