test/e2e: Add test for config option to disable Grafana

openshift · Jun 30, 2021 · 3b4aeeb · 3b4aeeb
1 parent 85cf851
commit 3b4aeeb
Showing 1 changed file with 55 additions and 0 deletions.
diff --git a/test/e2e/config_test.go b/test/e2e/config_test.go
@@ -15,12 +15,14 @@
 package e2e
 
 import (
+	"context"
 	"testing"
 	"time"
 
 	configv1 "github.com/openshift/api/config/v1"
 	"github.com/pkg/errors"
 	v1 "k8s.io/api/core/v1"
+	apierrors "k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 
 	"github.com/openshift/cluster-monitoring-operator/test/e2e/framework"
@@ -94,6 +96,59 @@ func TestClusterMonitoringOperatorConfiguration(t *testing.T) {
 	assertOperatorCondition(t, configv1.OperatorAvailable, configv1.ConditionTrue)
 }
 
+func TestGrafanaConfiguration(t *testing.T) {
+	config := &v1.ConfigMap{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      "cluster-monitoring-config",
+			Namespace: f.Ns,
+		},
+		Data: map[string]string{
+			"config.yaml": "grafana: { enabled: false }",
+		},
+	}
+
+	if err := f.OperatorClient.CreateOrUpdateConfigMap(config); err != nil {
+		t.Fatal(err)
+	}
+
+	// Wait for Grafana deployment to disappear.
+	err := framework.Poll(time.Second, 5*time.Minute, func() error {
+		_, err := f.KubeClient.AppsV1().Deployments(f.Ns).Get(context.TODO(), "grafana", metav1.GetOptions{})
+		if apierrors.IsNotFound(err) {
+			return nil
+		}
+
+		return errors.New("Grafana deployment still exists")
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	t.Log("asserting that CMO is healthy after disabling Grafana")
+	assertOperatorCondition(t, configv1.OperatorDegraded, configv1.ConditionFalse)
+	assertOperatorCondition(t, configv1.OperatorAvailable, configv1.ConditionTrue)
+
+	// Push a default configuration that re-enables Grafana.
+	config.Data["config.yaml"] = "grafana: { enabled: true }"
+
+	if err := f.OperatorClient.CreateOrUpdateConfigMap(config); err != nil {
+		t.Fatal(err)
+	}
+
+	// Wait for Grafana deployment to appear.
+	err = framework.Poll(time.Second, 5*time.Minute, func() error {
+		_, err := f.KubeClient.AppsV1().Deployments(f.Ns).Get(context.TODO(), "grafana", metav1.GetOptions{})
+		return err
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	t.Log("asserting that CMO is healthy after re-enabling Grafana")
+	assertOperatorCondition(t, configv1.OperatorDegraded, configv1.ConditionFalse)
+	assertOperatorCondition(t, configv1.OperatorAvailable, configv1.ConditionTrue)
+}
+
 func assertOperatorCondition(t *testing.T, conditionType configv1.ClusterStatusConditionType, conditionStatus configv1.ConditionStatus) {
 	t.Helper()