109 lines
3.4 KiB
Go
109 lines
3.4 KiB
Go
/*
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Copyright 2024.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package controller
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import (
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"testing"
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appsv1 "k8s.io/api/apps/v1"
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"k8s.io/apimachinery/pkg/api/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/types"
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"sigs.k8s.io/controller-runtime/pkg/reconcile"
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operatorv1alpha1 "go.etcd.io/etcd-operator/api/v1alpha1"
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)
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func TestControllerReconcile(t *testing.T) {
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ctx := t.Context()
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const (
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resourceName = "test-etcd-cluster"
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expectedSize int32 = 1
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)
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typeNamespacedName := types.NamespacedName{
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Name: resourceName,
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Namespace: "default",
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}
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etcdcluster := &operatorv1alpha1.EtcdCluster{}
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t.Log("Checking for EtcdCluster resource")
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err := k8sClient.Get(ctx, typeNamespacedName, etcdcluster)
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if err != nil && errors.IsNotFound(err) {
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t.Log("Creating EtcdCluster resource")
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resource := &operatorv1alpha1.EtcdCluster{
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ObjectMeta: metav1.ObjectMeta{
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Name: resourceName,
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Namespace: "default",
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},
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Spec: operatorv1alpha1.EtcdClusterSpec{
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Size: int(expectedSize),
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},
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}
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if createErr := k8sClient.Create(ctx, resource); createErr != nil {
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t.Fatalf("Failed to create EtcdCluster resource: %v", createErr)
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}
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} else if err != nil {
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t.Fatalf("Failed to get EtcdCluster resource: %v", err)
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}
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// Defer a cleanup function to remove the resource after the test finishes.
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defer func() {
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t.Log("Cleaning up the EtcdCluster resource")
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resource := &operatorv1alpha1.EtcdCluster{}
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if getErr := k8sClient.Get(ctx, typeNamespacedName, resource); getErr != nil {
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t.Errorf("Failed to get EtcdCluster resource before deletion: %v", getErr)
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} else {
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if deleteErr := k8sClient.Delete(ctx, resource); deleteErr != nil {
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t.Errorf("Failed to delete EtcdCluster resource: %v", deleteErr)
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}
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}
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}()
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reconciler := &EtcdClusterReconciler{
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Client: k8sClient,
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Scheme: k8sClient.Scheme(),
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}
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// Reconcile, as it is, returns err since StatefulSet status.ReadyReplicas cannot report its actual status.
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// This is due to envtest limitation. Envtest does not include kubelet, making pods to never report its readiness .
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_, _ = reconciler.Reconcile(ctx, reconcile.Request{
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NamespacedName: typeNamespacedName,
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})
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// Verify Statefulset has been created with expected replica size
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etcdClusterSts := &appsv1.StatefulSet{}
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err = k8sClient.Get(ctx, typeNamespacedName, etcdClusterSts)
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if err != nil {
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t.Fatalf("Failed to find corresponding Statefulset for %s: %v", resourceName, err)
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}
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if *etcdClusterSts.Spec.Replicas != expectedSize {
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t.Fatalf("Unexpected StatefulSet Size: expected %d, got: %d", expectedSize, *etcdClusterSts.Spec.Replicas)
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}
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// TODO: Add more specific checks (e.g., verifying status conditions or created resources).
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// For example:
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// updated := &operatorv1alpha1.EtcdCluster{}
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// if err := k8sClient.Get(ctx, typeNamespacedName, updated); err != nil {
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// t.Fatalf("Failed to retrieve updated resource: %v", err)
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// }
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// // Validate updated fields or status
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}
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