286 lines
8.1 KiB
Go
286 lines
8.1 KiB
Go
package controllers
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import (
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"context"
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"math/rand"
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"net/http/httptest"
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"time"
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"github.com/google/go-github/v33/github"
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corev1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/client-go/kubernetes/scheme"
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"k8s.io/utils/pointer"
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ctrl "sigs.k8s.io/controller-runtime"
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logf "sigs.k8s.io/controller-runtime/pkg/log"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"sigs.k8s.io/controller-runtime/pkg/client"
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actionsv1alpha1 "github.com/summerwind/actions-runner-controller/api/v1alpha1"
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"github.com/summerwind/actions-runner-controller/github/fake"
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)
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var (
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runnersList *fake.RunnersList
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server *httptest.Server
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)
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// SetupTest will set up a testing environment.
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// This includes:
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// * creating a Namespace to be used during the test
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// * starting the 'RunnerReconciler'
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// * stopping the 'RunnerReplicaSetReconciler" after the test ends
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// Call this function at the start of each of your tests.
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func SetupTest(ctx context.Context) *corev1.Namespace {
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var stopCh chan struct{}
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ns := &corev1.Namespace{}
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BeforeEach(func() {
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stopCh = make(chan struct{})
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*ns = corev1.Namespace{
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ObjectMeta: metav1.ObjectMeta{Name: "testns-" + randStringRunes(5)},
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}
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err := k8sClient.Create(ctx, ns)
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Expect(err).NotTo(HaveOccurred(), "failed to create test namespace")
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mgr, err := ctrl.NewManager(cfg, ctrl.Options{})
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Expect(err).NotTo(HaveOccurred(), "failed to create manager")
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runnersList = fake.NewRunnersList()
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server = runnersList.GetServer()
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ghClient := newGithubClient(server)
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controller := &RunnerReplicaSetReconciler{
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Client: mgr.GetClient(),
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Scheme: scheme.Scheme,
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Log: logf.Log,
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Recorder: mgr.GetEventRecorderFor("runnerreplicaset-controller"),
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GitHubClient: ghClient,
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Name: "runnerreplicaset-" + ns.Name,
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}
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err = controller.SetupWithManager(mgr)
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Expect(err).NotTo(HaveOccurred(), "failed to setup controller")
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go func() {
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defer GinkgoRecover()
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err := mgr.Start(stopCh)
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Expect(err).NotTo(HaveOccurred(), "failed to start manager")
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}()
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})
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AfterEach(func() {
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close(stopCh)
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server.Close()
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err := k8sClient.Delete(ctx, ns)
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Expect(err).NotTo(HaveOccurred(), "failed to delete test namespace")
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})
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return ns
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}
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var letterRunes = []rune("abcdefghijklmnopqrstuvwxyz1234567890")
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func randStringRunes(n int) string {
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b := make([]rune, n)
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for i := range b {
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b[i] = letterRunes[rand.Intn(len(letterRunes))]
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}
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return string(b)
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}
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func intPtr(v int) *int {
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return &v
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}
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var _ = Context("Inside of a new namespace", func() {
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ctx := context.TODO()
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ns := SetupTest(ctx)
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Describe("when no existing resources exist", func() {
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It("should create a new Runner resource from the specified template, add a another Runner on replicas increased, and removes all the replicas when set to 0", func() {
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name := "example-runnerreplicaset"
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{
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rs := &actionsv1alpha1.RunnerReplicaSet{
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ObjectMeta: metav1.ObjectMeta{
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Name: name,
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Namespace: ns.Name,
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},
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Spec: actionsv1alpha1.RunnerReplicaSetSpec{
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Replicas: intPtr(1),
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Selector: &metav1.LabelSelector{
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MatchLabels: map[string]string{
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"foo": "bar",
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},
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},
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Template: actionsv1alpha1.RunnerTemplate{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{
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"foo": "bar",
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},
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},
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Spec: actionsv1alpha1.RunnerSpec{
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Repository: "foo/bar",
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Image: "bar",
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Env: []corev1.EnvVar{
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{Name: "FOO", Value: "FOOVALUE"},
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},
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},
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},
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},
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}
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err := k8sClient.Create(ctx, rs)
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Expect(err).NotTo(HaveOccurred(), "failed to create test RunnerReplicaSet resource")
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runners := actionsv1alpha1.RunnerList{Items: []actionsv1alpha1.Runner{}}
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Eventually(
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func() int {
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selector, err := metav1.LabelSelectorAsSelector(
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&metav1.LabelSelector{
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MatchLabels: map[string]string{
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"foo": "bar",
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},
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},
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)
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if err != nil {
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logf.Log.Error(err, "failed to create labelselector")
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return -1
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}
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err = k8sClient.List(
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ctx,
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&runners,
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client.InNamespace(ns.Name),
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client.MatchingLabelsSelector{Selector: selector},
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)
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if err != nil {
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logf.Log.Error(err, "list runners")
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return -1
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}
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for i, runner := range runners.Items {
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runnersList.Add(&github.Runner{
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ID: pointer.Int64Ptr(int64(i) + 1),
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Name: pointer.StringPtr(runner.Name),
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OS: pointer.StringPtr("linux"),
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Status: pointer.StringPtr("online"),
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Busy: pointer.BoolPtr(false),
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})
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}
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return len(runners.Items)
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},
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time.Second*5, time.Millisecond*500).Should(BeEquivalentTo(1))
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}
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{
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// We wrap the update in the Eventually block to avoid the below error that occurs due to concurrent modification
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// made by the controller to update .Status.AvailableReplicas and .Status.ReadyReplicas
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// Operation cannot be fulfilled on runnerreplicasets.actions.summerwind.dev "example-runnerreplicaset": the object has been modified; please apply your changes to the latest version and try again
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Eventually(func() error {
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var rs actionsv1alpha1.RunnerReplicaSet
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err := k8sClient.Get(ctx, types.NamespacedName{Namespace: ns.Name, Name: name}, &rs)
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Expect(err).NotTo(HaveOccurred(), "failed to get test RunnerReplicaSet resource")
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rs.Spec.Replicas = intPtr(2)
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return k8sClient.Update(ctx, &rs)
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},
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time.Second*1, time.Millisecond*500).Should(BeNil())
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runners := actionsv1alpha1.RunnerList{Items: []actionsv1alpha1.Runner{}}
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Eventually(
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func() int {
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selector, err := metav1.LabelSelectorAsSelector(
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&metav1.LabelSelector{
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MatchLabels: map[string]string{
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"foo": "bar",
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},
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},
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)
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if err != nil {
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logf.Log.Error(err, "failed to create labelselector")
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return -1
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}
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err = k8sClient.List(
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ctx,
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&runners,
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client.InNamespace(ns.Name),
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client.MatchingLabelsSelector{Selector: selector},
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)
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if err != nil {
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logf.Log.Error(err, "list runners")
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}
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for i, runner := range runners.Items {
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runnersList.Add(&github.Runner{
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ID: pointer.Int64Ptr(int64(i) + 1),
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Name: pointer.StringPtr(runner.Name),
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OS: pointer.StringPtr("linux"),
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Status: pointer.StringPtr("online"),
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Busy: pointer.BoolPtr(false),
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})
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}
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return len(runners.Items)
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},
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time.Second*5, time.Millisecond*500).Should(BeEquivalentTo(2))
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}
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{
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// We wrap the update in the Eventually block to avoid the below error that occurs due to concurrent modification
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// made by the controller to update .Status.AvailableReplicas and .Status.ReadyReplicas
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// Operation cannot be fulfilled on runnersets.actions.summerwind.dev "example-runnerset": the object has been modified; please apply your changes to the latest version and try again
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Eventually(func() error {
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var rs actionsv1alpha1.RunnerReplicaSet
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err := k8sClient.Get(ctx, types.NamespacedName{Namespace: ns.Name, Name: name}, &rs)
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Expect(err).NotTo(HaveOccurred(), "failed to get test RunnerReplicaSet resource")
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rs.Spec.Replicas = intPtr(0)
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return k8sClient.Update(ctx, &rs)
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},
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time.Second*1, time.Millisecond*500).Should(BeNil())
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runners := actionsv1alpha1.RunnerList{Items: []actionsv1alpha1.Runner{}}
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Eventually(
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func() int {
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err := k8sClient.List(ctx, &runners, client.InNamespace(ns.Name))
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if err != nil {
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logf.Log.Error(err, "list runners")
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return -1
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}
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for i, runner := range runners.Items {
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runnersList.Add(&github.Runner{
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ID: pointer.Int64Ptr(int64(i) + 1),
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Name: pointer.StringPtr(runner.Name),
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OS: pointer.StringPtr("linux"),
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Status: pointer.StringPtr("online"),
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Busy: pointer.BoolPtr(false),
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})
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}
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return len(runners.Items)
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},
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time.Second*5, time.Millisecond*500).Should(BeEquivalentTo(0))
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}
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})
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})
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})
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