Add e2e tests for auto provider

Signed-off-by: ArkaSaha30 <[email protected]>

Author: ArkaSaha30

test/e2e/auto_provider_test.go

@@ -0,0 +1,221 @@
+package e2e
+
+import (
+	"context"
+	"fmt"
+	"testing"
+	"time"
+
+	certv1 "github.com/cert-manager/cert-manager/pkg/apis/certmanager/v1"
+	appsv1 "k8s.io/api/apps/v1"
+	corev1 "k8s.io/api/core/v1"
+	apiextensionsV1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
+	k8serrors "k8s.io/apimachinery/pkg/api/errors"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"sigs.k8s.io/e2e-framework/klient"
+	"sigs.k8s.io/e2e-framework/klient/k8s"
+	"sigs.k8s.io/e2e-framework/klient/wait"
+	"sigs.k8s.io/e2e-framework/pkg/envconf"
+	"sigs.k8s.io/e2e-framework/pkg/features"
+
+	ecv1alpha1 "go.etcd.io/etcd-operator/api/v1alpha1"
+	"go.etcd.io/etcd-operator/pkg/certificate/auto"
+	interfaces "go.etcd.io/etcd-operator/pkg/certificate/interfaces"
+)
+
+const (
+	autoCertificateName      = "sample-cert"
+	autoCertificateNamespace = "default"
+	autoCertificateValidity  = 365 * 24 * time.Hour
+)
+
+func TestAutoProvider(t *testing.T) {
+	feature := features.New("Auto Provider Certificate").WithLabel("app", "auto")
+
+	cmConfig := &interfaces.Config{
+		CommonName:       autoCertificateName,
+		ValidityDuration: autoCertificateValidity,
+	}
+
+	feature.Setup(
+		func(ctx context.Context, t *testing.T, cfg *envconf.Config) context.Context {
+			client := cfg.Client()
+			_ = appsv1.AddToScheme(client.Resources().GetScheme())
+			_ = corev1.AddToScheme(client.Resources().GetScheme())
+			_ = certv1.AddToScheme(client.Resources().GetScheme())
+			_ = apiextensionsV1.AddToScheme(client.Resources().GetScheme())
+
+			return ctx
+		})
+
+	feature.Assess("Ensure certificate",
+		func(ctx context.Context, t *testing.T, cfg *envconf.Config) context.Context {
+			client := cfg.Client()
+			acProvider := auto.New(client.Resources().GetControllerRuntimeClient())
+			err := acProvider.EnsureCertificateSecret(ctx, autoCertificateName, autoCertificateNamespace, cmConfig)
+			if err != nil {
+				t.Fatalf("Auto Provider Certificate could not be created: %v", err)
+			}
+			return ctx
+		})
+
+	feature.Assess("Validate certificate secret",
+		func(ctx context.Context, t *testing.T, cfg *envconf.Config) context.Context {
+			client := cfg.Client()
+			acProvider := auto.New(client.Resources().GetControllerRuntimeClient())
+			err := acProvider.ValidateCertificateSecret(ctx, autoCertificateName, autoCertificateNamespace, cmConfig)
+			if err != nil {
+				t.Fatalf("Failed to validate Auto Provider Certificate secret: %v", err)
+			}
+			return ctx
+		})
+
+	feature.Assess("Delete certificate secret",
+		func(ctx context.Context, t *testing.T, cfg *envconf.Config) context.Context {
+			client := cfg.Client()
+			acProvider := auto.New(client.Resources().GetControllerRuntimeClient())
+			err := acProvider.DeleteCertificateSecret(ctx, autoCertificateName, autoCertificateNamespace)
+			if err != nil {
+				t.Fatalf("Failed to delete Certificate secret: %v", err)
+			}
+			return ctx
+		})
+
+	feature.Assess("Verify Delete certificate",
+		func(ctx context.Context, t *testing.T, cfg *envconf.Config) context.Context {
+			client := cfg.Client()
+			acProvider := auto.New(client.Resources().GetControllerRuntimeClient())
+			_, err := acProvider.GetCertificateConfig(ctx, autoCertificateName, autoCertificateNamespace)
+			if err == nil {
+				t.Fatalf("Auto Provider Certificate found, deletion failed: %v", err)
+			}
+			return ctx
+		})
+
+	_ = testEnv.Test(t, feature.Feature())
+}
+
+func TestClusterAutoCertCreation(t *testing.T) {
+	feature := features.New("cluster-auto-cert-creation")
+
+	const etcdClusterName = "etcd-cluster-auto-cert"
+	const size = 3
+
+	etcdCluster := &ecv1alpha1.EtcdCluster{
+		TypeMeta: metav1.TypeMeta{
+			APIVersion: "operator.etcd.io/v1alpha1",
+			Kind:       "EtcdCluster",
+		},
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      etcdClusterName,
+			Namespace: namespace,
+		},
+		Spec: ecv1alpha1.EtcdClusterSpec{
+			Size:    size,
+			Version: etcdVersion,
+			TLS: &ecv1alpha1.TLSCertificate{
+				Provider: "auto",
+				ProviderCfg: ecv1alpha1.ProviderConfig{
+					AutoCfg: &ecv1alpha1.ProviderAutoConfig{
+						CommonConfig: ecv1alpha1.CommonConfig{
+							CommonName:       "etcd-operator-system",
+							ValidityDuration: "8760h",
+						},
+					},
+				},
+			},
+		},
+	}
+
+	feature.Setup(func(ctx context.Context, t *testing.T, cfg *envconf.Config) context.Context {
+		client := cfg.Client()
+		_ = appsv1.AddToScheme(client.Resources().GetScheme())
+		_ = corev1.AddToScheme(client.Resources().GetScheme())
+		_ = certv1.AddToScheme(client.Resources().GetScheme())
+		_ = apiextensionsV1.AddToScheme(client.Resources().GetScheme())
+
+		// create etcd cluster
+		if err := client.Resources().Create(ctx, etcdCluster); err != nil {
+			t.Fatalf("unable to create etcd cluster: %s", err)
+		}
+
+		// get etcd cluster object
+		var ec ecv1alpha1.EtcdCluster
+		if err := client.Resources().Get(ctx, etcdClusterName, namespace, &ec); err != nil {
+			t.Fatalf("unable to fetch etcd cluster: %s", err)
+		}
+
+		return ctx
+	})
+
+	feature.Assess("Check certificate secrets exist",
+		func(ctx context.Context, t *testing.T, c *envconf.Config) context.Context {
+			client := c.Client()
+			// checks if corresponding client, server, peer secrets are created in the respective namespace
+			if err := wait.For(
+				func(context.Context) (bool, error) {
+					return validateSecretExists(ctx, client, etcdClusterName, namespace, "secret")
+				},
+				wait.WithTimeout(3*time.Minute),
+				wait.WithInterval(10*time.Second),
+			); err != nil {
+				t.Fatalf("timed out waiting for certificate: %s", err)
+			}
+			return ctx
+		},
+	)
+
+	feature.Assess("Verify Data Operations",
+		func(ctx context.Context, t *testing.T, c *envconf.Config) context.Context {
+			// verify etcdCluster is accessible via client certificate with put and get
+			verifyDataOperations(t, c, etcdClusterName)
+			return ctx
+		},
+	)
+
+	_ = testEnv.Test(t, feature.Feature())
+}
+
+func validateSecretExists(ctx context.Context, client klient.Client,
+	etcdClusterName, etcdClusterNamespace, resourceType string) (bool, error) {
+	clientCertName := fmt.Sprintf("%s-client-tls", etcdClusterName)
+	serverCertName := fmt.Sprintf("%s-server-tls", etcdClusterName)
+	peerCertName := fmt.Sprintf("%s-peer-tls", etcdClusterName)
+
+	var obj any
+
+	switch resourceType {
+	case "secret":
+		var secretObj corev1.Secret
+		obj = &secretObj
+	default:
+		return false, fmt.Errorf("invalid resource type: %v", resourceType)
+	}
+
+	runtimeObj, err := obj.(k8s.Object)
+	if !err {
+		return false, fmt.Errorf("object does not implement runtime.Object: %T", obj)
+	}
+
+	if err := client.Resources().Get(ctx, clientCertName, etcdClusterNamespace, runtimeObj); err != nil {
+		if k8serrors.IsNotFound(err) {
+			return false, nil
+		}
+		return false, fmt.Errorf("failed to get Client %s: %v", resourceType, err)
+	}
+
+	if err := client.Resources().Get(ctx, serverCertName, etcdClusterNamespace, runtimeObj); err != nil {
+		if k8serrors.IsNotFound(err) {
+			return false, nil
+		}
+		return false, fmt.Errorf("failed to get Server %s: %v", resourceType, err)
+	}
+
+	if err := client.Resources().Get(ctx, peerCertName, etcdClusterNamespace, runtimeObj); err != nil {
+		if k8serrors.IsNotFound(err) {
+			return false, nil
+		}
+		return false, fmt.Errorf("failed to get Peer %s: %v", resourceType, err)
+	}
+	return true, nil
+}