fix: Cluster API does not support updating labels and annotations (#7901

)

Signed-off-by: May Zhang <may_zhang@intuit.com>

server/cluster/cluster.go

@@ -181,6 +181,12 @@ var clusterFieldsByPath = map[string]func(updated *appv1.Cluster, existing *appv
 	"clusterResources": func(updated *appv1.Cluster, existing *appv1.Cluster) {
 		updated.ClusterResources = existing.ClusterResources
 	},
+	"labels": func(updated *appv1.Cluster, existing *appv1.Cluster) {
+		updated.Labels = existing.Labels
+	},
+	"annotations": func(updated *appv1.Cluster, existing *appv1.Cluster) {
+		updated.Annotations = existing.Annotations
+	},
 }
 
 // Update updates a cluster

server/cluster/cluster_test.go

@@ -109,4 +109,38 @@ func TestUpdateCluster_FieldsPathSet(t *testing.T) {
 	assert.Equal(t, updated.Name, "minikube")
 	assert.Equal(t, updated.Namespaces, []string{"default", "kube-system"})
 	assert.Equal(t, *updated.Shard, int64(1))
+
+	labelEnv := map[string]string{
+		"env": "qa",
+	}
+	_, err = server.Update(context.Background(), &clusterapi.ClusterUpdateRequest{
+		Cluster: &v1alpha1.Cluster{
+			Server: "https://127.0.0.1",
+			Labels: labelEnv,
+		},
+		UpdatedFields: []string{"labels"},
+	})
+
+	require.NoError(t, err)
+
+	assert.Equal(t, updated.Name, "minikube")
+	assert.Equal(t, updated.Namespaces, []string{"default", "kube-system"})
+	assert.Equal(t, updated.Labels, labelEnv)
+
+	annotationEnv := map[string]string{
+		"env": "qa",
+	}
+	_, err = server.Update(context.Background(), &clusterapi.ClusterUpdateRequest{
+		Cluster: &v1alpha1.Cluster{
+			Server:      "https://127.0.0.1",
+			Annotations: annotationEnv,
+		},
+		UpdatedFields: []string{"annotations"},
+	})
+
+	require.NoError(t, err)
+
+	assert.Equal(t, updated.Name, "minikube")
+	assert.Equal(t, updated.Namespaces, []string{"default", "kube-system"})
+	assert.Equal(t, updated.Annotations, annotationEnv)
 }