fix: ArgoCD CLI diff shows installationID annotations (#22409) (#22567)

Signed-off-by: yang.xiao <yang.xiao@daocloud.io>

server/settings/settings.go

@@ -89,6 +89,11 @@ func (s *Server) Get(ctx context.Context, _ *settingspkg.SettingsQuery) (*settin
 		return nil, err
 	}
 
+	installationID, err := s.mgr.GetInstallationID()
+	if err != nil {
+		return nil, err
+	}
+
 	set := settingspkg.Settings{
 		URL:                argoCDSettings.URL,
 		AdditionalURLs:     argoCDSettings.AdditionalURLs,
@@ -112,6 +117,7 @@ func (s *Server) Get(ctx context.Context, _ *settingspkg.SettingsQuery) (*settin
 		KustomizeVersions:         kustomizeVersions,
 		UiCssURL:                  argoCDSettings.UiCssURL,
 		TrackingMethod:            trackingMethod,
+		InstallationID:            installationID,
 		ExecEnabled:               argoCDSettings.ExecEnabled,
 		AppsInAnyNamespaceEnabled: s.appsInAnyNamespaceEnabled,
 		ImpersonationEnabled:      argoCDSettings.ImpersonationEnabled,

server/settings/settings_test.go

@@ -0,0 +1,82 @@
+package settings
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/client-go/kubernetes/fake"
+
+	"github.com/argoproj/argo-cd/v3/common"
+	"github.com/argoproj/argo-cd/v3/util/settings"
+)
+
+const testNamespace = "default"
+
+func fixtures(data map[string]string) (*fake.Clientset, *settings.SettingsManager) {
+	kubeClient := fake.NewClientset(&corev1.ConfigMap{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      common.ArgoCDConfigMapName,
+			Namespace: testNamespace,
+			Labels: map[string]string{
+				"app.kubernetes.io/part-of": "argocd",
+			},
+		},
+		Data: data,
+	}, &corev1.Secret{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      "argocd-secret",
+			Namespace: testNamespace,
+		},
+		Data: map[string][]byte{
+			"admin.password":   []byte("test"),
+			"server.secretkey": []byte("test"),
+		},
+	})
+	settingsManager := settings.NewSettingsManager(context.Background(), kubeClient, testNamespace)
+	return kubeClient, settingsManager
+}
+
+func TestSettingsServer(t *testing.T) {
+	newServer := func(data map[string]string) *Server {
+		_, settingsMgr := fixtures(data)
+		return NewServer(settingsMgr, nil, nil, false, false, false)
+	}
+
+	t.Run("TestGetInstallationID", func(t *testing.T) {
+		settingsServer := newServer(map[string]string{
+			"installationID": "1234567890",
+		})
+		resp, err := settingsServer.Get(t.Context(), nil)
+		require.NoError(t, err)
+		assert.Equal(t, "1234567890", resp.InstallationID)
+	})
+
+	t.Run("TestGetInstallationIDNotSet", func(t *testing.T) {
+		settingsServer := newServer(map[string]string{})
+		resp, err := settingsServer.Get(t.Context(), nil)
+		require.NoError(t, err)
+		assert.Empty(t, resp.InstallationID)
+	})
+
+	t.Run("TestGetTrackingMethod", func(t *testing.T) {
+		settingsServer := newServer(map[string]string{
+			"application.resourceTrackingMethod": "annotation+label",
+		})
+		resp, err := settingsServer.Get(t.Context(), nil)
+		require.NoError(t, err)
+		assert.Equal(t, "annotation+label", resp.TrackingMethod)
+	})
+
+	t.Run("TestGetAppLabelKey", func(t *testing.T) {
+		settingsServer := newServer(map[string]string{
+			"application.instanceLabelKey": "instance",
+		})
+		resp, err := settingsServer.Get(t.Context(), nil)
+		require.NoError(t, err)
+		assert.Equal(t, "instance", resp.AppLabelKey)
+	})
+}