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Add E2E Tests #23
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Add E2E Tests #23
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,75 @@ | ||
| package e2e | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "path/filepath" | ||
| "testing" | ||
| "time" | ||
|
|
||
| corev1 "k8s.io/api/core/v1" | ||
|
|
||
| "sigs.k8s.io/e2e-framework/pkg/envconf" | ||
| "sigs.k8s.io/e2e-framework/pkg/features" | ||
| "sigs.k8s.io/e2e-framework/third_party/helm" | ||
| ) | ||
|
|
||
| func assertLabelsSet(t *testing.T, nodes corev1.NodeList) bool { | ||
| t.Helper() | ||
|
|
||
| for _, node := range nodes.Items { | ||
| for _, label := range expectedLabels { | ||
| if _, ok := node.Labels[label]; !ok { | ||
| return ok | ||
| } | ||
| } | ||
| } | ||
| return true | ||
| } | ||
|
|
||
| func TestSetLabels(t *testing.T) { | ||
| feature := features.New("Set Labels"). | ||
| Setup(func(ctx context.Context, t *testing.T, config *envconf.Config) context.Context { | ||
| manager := helm.New(config.KubeconfigFile()) | ||
| err := manager.RunInstall( | ||
| helm.WithName("test-decorator"), | ||
| helm.WithNamespace(namespace), | ||
| helm.WithChart(filepath.Join(curDir, "..", "helm", "k8s-node-decorator")), | ||
| helm.WithArgs("--set", fmt.Sprintf("decorator.image.tag=%s", tag)), | ||
| helm.WithArgs("--set", fmt.Sprintf("decorator.image.repository=%s", repo)), | ||
| helm.WithArgs("--set", fmt.Sprintf("decorator.prefix=%s", LabelPrefix)), | ||
| helm.WithArgs("--set", fmt.Sprintf("rbac.name=%s", rbacName)), | ||
| helm.WithWait(), | ||
| helm.WithTimeout("10m"), | ||
| ) | ||
| if err != nil { | ||
| t.Fatal("failed to invoke helm install operation due to an error", err) | ||
| } | ||
| return ctx | ||
| }). | ||
| Assess("Check Label", func(ctx context.Context, t *testing.T, config *envconf.Config) context.Context { | ||
| nodes := corev1.NodeList{} | ||
|
|
||
| err := config.Client().Resources().List(ctx, &nodes) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
|
|
||
| // retry when labels are not set in a timely manner | ||
| for i := 1; i <= 3; i++ { | ||
| ok := assertLabelsSet(t, nodes) | ||
| if ok { | ||
| t.Log("all expected labels are set") | ||
| break | ||
| } else { | ||
| t.Log("failed to assert decorator labels, retrying after 5s...") | ||
| time.Sleep(5 * time.Second) | ||
| } | ||
| } | ||
|
|
||
| return ctx | ||
| }). | ||
| Feature() | ||
|
|
||
| testenv.Test(t, feature) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,109 @@ | ||
| package e2e | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "os" | ||
| "testing" | ||
|
|
||
| "sigs.k8s.io/e2e-framework/klient/conf" | ||
| "sigs.k8s.io/e2e-framework/pkg/env" | ||
| "sigs.k8s.io/e2e-framework/pkg/envconf" | ||
| "sigs.k8s.io/e2e-framework/pkg/envfuncs" | ||
|
|
||
| rbacv1 "k8s.io/api/rbac/v1" | ||
| ) | ||
|
|
||
| const ( | ||
| TagEnvVar = "DECORATOR_TEST_TAG" | ||
| RepoEnvVar = "DECORATOR_TEST_REPO" | ||
|
|
||
| LabelPrefix = "decorator.linode.com" | ||
| ) | ||
|
|
||
| var ( | ||
| testenv env.Environment | ||
| curDir string | ||
| namespace string | ||
| tag string | ||
| repo string | ||
| expectedLabels []string | ||
| rbacName string | ||
| ) | ||
|
|
||
| func configureRBACName() { | ||
| rbacName = envconf.RandomName("test-decorator-rbac", 32) | ||
| } | ||
|
|
||
| func configureExpectedNodeLabels() { | ||
| expectedLabels = []string{ | ||
| LabelPrefix + "/label", | ||
| LabelPrefix + "/instance-id", | ||
| LabelPrefix + "/region", | ||
| LabelPrefix + "/instance-type", | ||
| LabelPrefix + "/host", | ||
| } | ||
| } | ||
|
|
||
| func configureImage() { | ||
| tag = os.Getenv(TagEnvVar) | ||
| if tag == "" { | ||
| panic(fmt.Sprintf( | ||
| "you have to configure the environment variable %q "+ | ||
| "for the test container image.", | ||
| TagEnvVar, | ||
| )) | ||
| } | ||
|
|
||
| repo = os.Getenv(RepoEnvVar) | ||
| if repo == "" { | ||
| repo = "docker.io/linode/k8s-node-decorator" | ||
| } | ||
| } | ||
|
|
||
| func configureCurrentDirectory() { | ||
| c, err := os.Getwd() | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| curDir = c | ||
| } | ||
|
|
||
| func cleanupDecoratorClusterRoles(ctx context.Context, config *envconf.Config) (context.Context, error) { | ||
| clusterRole := rbacv1.ClusterRole{} | ||
| clusterRoleBinding := rbacv1.ClusterRoleBinding{} | ||
|
|
||
| config.Client().Resources().Get(ctx, rbacName, namespace, &clusterRole) | ||
| config.Client().Resources().Get(ctx, rbacName, namespace, &clusterRoleBinding) | ||
|
|
||
| config.Client().Resources().Delete(ctx, &clusterRole) | ||
| config.Client().Resources().Delete(ctx, &clusterRoleBinding) | ||
|
|
||
| return ctx, nil | ||
| } | ||
|
|
||
| func TestMain(m *testing.M) { | ||
| configureRBACName() | ||
| configureCurrentDirectory() | ||
| configureImage() | ||
| configureExpectedNodeLabels() | ||
|
|
||
| testenv = env.New() | ||
| namespace = envconf.RandomName("test-decorator", 32) | ||
| path := conf.ResolveKubeConfigFile() | ||
| if path == "" { | ||
| panic("a kubeconfig file is required for e2e testing.") | ||
| } | ||
| cfg := envconf.NewWithKubeConfig(path) | ||
| testenv = env.NewWithConfig(cfg) | ||
|
|
||
| testenv.Setup( | ||
| envfuncs.CreateNamespace(namespace), | ||
| ) | ||
| testenv.Finish( | ||
| envfuncs.DeleteNamespace(namespace), | ||
| cleanupDecoratorClusterRoles, | ||
| ) | ||
|
|
||
| os.Exit(testenv.Run(m)) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| terraform { | ||
| required_providers { | ||
| linode = { | ||
| source = "linode/linode" | ||
| } | ||
| } | ||
| } | ||
|
|
||
| provider "linode" { | ||
| } | ||
|
|
||
| resource "linode_lke_cluster" "e2e-test-cluster" { | ||
| label = var.lke_cluster_label | ||
| k8s_version = var.lke_k8s_version | ||
| region = var.linode_region | ||
|
|
||
| pool { | ||
| type = "g6-standard-1" | ||
| count = 1 | ||
| } | ||
| } | ||
|
|
||
| resource "local_sensitive_file" "kubeconfig" { | ||
| content_base64 = linode_lke_cluster.e2e-test-cluster.kubeconfig | ||
| filename = var.lke_kubeconfig_path | ||
| file_permission = "0600" | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,19 @@ | ||
| variable "linode_region" { | ||
| type = string | ||
| default = "us-mia" | ||
| } | ||
|
|
||
| variable "lke_k8s_version" { | ||
| type = string | ||
| default = "1.29" | ||
| } | ||
|
|
||
| variable "lke_cluster_label" { | ||
| type = string | ||
| default = "test-decorator" | ||
| } | ||
|
|
||
| variable "lke_kubeconfig_path" { | ||
| type = string | ||
| default = "./kubeconfig.yaml" | ||
| } |
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Just FYI, in other projects we use Linode Cluster API because Terraform provider is deprecated as i know.