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| bin |
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| ENVTEST_K8S_VERSION = 1.27.1 | ||
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| .PHONY: test | ||
| test-integration: envtest | ||
| KUBEBUILDER_ASSETS="$(shell $(ENVTEST) use $(ENVTEST_K8S_VERSION) --bin-dir $(LOCALBIN) -p path)" go test ./... -v | ||
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| ## Location to install dependencies to | ||
| LOCALBIN ?= $(shell pwd)/bin | ||
| $(LOCALBIN): | ||
| mkdir -p $(LOCALBIN) | ||
| ENVTEST ?= $(LOCALBIN)/setup-envtest | ||
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| .PHONY: envtest | ||
| envtest: $(ENVTEST) ## Download envtest-setup locally if necessary. | ||
| $(ENVTEST): $(LOCALBIN) | ||
| test -s $(LOCALBIN)/setup-envtest || GOBIN=$(LOCALBIN) go install sigs.k8s.io/controller-runtime/tools/setup-envtest@latest | ||
|
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,137 @@ | ||
| package main | ||
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| import ( | ||
| "bytes" | ||
| "fmt" | ||
| "net/http" | ||
| "net/http/httptest" | ||
| "net/url" | ||
| "strconv" | ||
| "sync" | ||
| "sync/atomic" | ||
| "testing" | ||
| "time" | ||
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| "github.com/stretchr/testify/assert" | ||
| "github.com/stretchr/testify/require" | ||
| appsv1 "k8s.io/api/apps/v1" | ||
| corev1 "k8s.io/api/core/v1" | ||
| disv1 "k8s.io/api/discovery/v1" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/types" | ||
| "k8s.io/utils/ptr" | ||
| ) | ||
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| func TestIntegration(t *testing.T) { | ||
| const modelName = "test-model-a" | ||
| deploy := testDeployment(modelName) | ||
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| require.NoError(t, testK8sClient.Create(testCtx, deploy)) | ||
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| backendRequests := &atomic.Int32{} | ||
| testBackend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | ||
| backendRequests.Add(1) | ||
| w.WriteHeader(200) | ||
| })) | ||
| testBackendURL, err := url.Parse(testBackend.URL) | ||
| require.NoError(t, err) | ||
| testBackendPort, err := strconv.Atoi(testBackendURL.Port()) | ||
| require.NoError(t, testK8sClient.Create(testCtx, endpointSlice(modelName, testBackendURL.Hostname(), int32(testBackendPort)))) | ||
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| var wg sync.WaitGroup | ||
| wg.Add(1) | ||
| go func() { | ||
| defer wg.Done() | ||
| time.Sleep(3 * time.Second) | ||
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| body := []byte(fmt.Sprintf(`{"model": %q}`, modelName)) | ||
| req, err := http.NewRequest(http.MethodPost, testServer.URL, bytes.NewReader(body)) | ||
| requireNoError(err) | ||
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| res, err := testHTTPClient.Do(req) | ||
| require.NoError(t, err) | ||
| require.Equal(t, 200, res.StatusCode) | ||
| require.Equal(t, int32(1), backendRequests.Load()) | ||
| }() | ||
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| require.EventuallyWithT(t, func(t *assert.CollectT) { | ||
| err := testK8sClient.Get(testCtx, types.NamespacedName{Namespace: deploy.Namespace, Name: deploy.Name}, deploy) | ||
| assert.NoError(t, err, "getting the deployment") | ||
| assert.GreaterOrEqual(t, deploy.Spec.Replicas, 1, "scale-up should have occurred") | ||
| }, 3*time.Second, time.Second/2, "waiting for the deployment to be scaled up") | ||
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| t.Logf("Waiting for wait group") | ||
| wg.Wait() | ||
| } | ||
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| func testDeployment(name string) *appsv1.Deployment { | ||
| return &appsv1.Deployment{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: name + "-deploy", | ||
| Namespace: testNamespace, | ||
| Labels: map[string]string{ | ||
| "app": name, | ||
| }, | ||
| Annotations: map[string]string{ | ||
| "lingo.substratus.ai/models": name, | ||
| }, | ||
| }, | ||
| Spec: appsv1.DeploymentSpec{ | ||
| Selector: &metav1.LabelSelector{ | ||
| MatchLabels: map[string]string{ | ||
| "app": name, | ||
| }, | ||
| }, | ||
| Template: corev1.PodTemplateSpec{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Labels: map[string]string{ | ||
| "app": name, | ||
| }, | ||
| }, | ||
| Spec: corev1.PodSpec{ | ||
| Containers: []corev1.Container{ | ||
| { | ||
| Name: "model", | ||
| Image: "some-model:1.2.3", | ||
| Ports: []corev1.ContainerPort{ | ||
| { | ||
| ContainerPort: 80, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
| } | ||
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| func endpointSlice(name, ip string, port int32) *disv1.EndpointSlice { | ||
| return &disv1.EndpointSlice{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: name + "-deploy", | ||
| Namespace: testNamespace, | ||
| Labels: map[string]string{ | ||
| disv1.LabelServiceName: name + "-deploy", | ||
| }, | ||
| }, | ||
| AddressType: disv1.AddressTypeIPv4, | ||
| Endpoints: []disv1.Endpoint{ | ||
| { | ||
| Addresses: []string{ip}, | ||
| Conditions: disv1.EndpointConditions{ | ||
| Ready: ptr.To(true), | ||
| Serving: ptr.To(true), | ||
| Terminating: ptr.To(false), | ||
| }, | ||
| }, | ||
| }, | ||
| Ports: []disv1.EndpointPort{ | ||
| { | ||
| Name: ptr.To("http"), | ||
| Port: ptr.To(port), | ||
| Protocol: ptr.To(corev1.ProtocolTCP), | ||
| }, | ||
| }, | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,105 @@ | ||
| package main | ||
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| import ( | ||
| "context" | ||
| "log" | ||
| "net/http" | ||
| "net/http/httptest" | ||
| "os" | ||
| "testing" | ||
| "time" | ||
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| corev1 "k8s.io/api/core/v1" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| clientgoscheme "k8s.io/client-go/kubernetes/scheme" | ||
| ctrl "sigs.k8s.io/controller-runtime" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| "sigs.k8s.io/controller-runtime/pkg/envtest" | ||
| metricsserver "sigs.k8s.io/controller-runtime/pkg/metrics/server" | ||
| ) | ||
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| var ( | ||
| testNamespace = "test" | ||
| testK8sClient client.Client | ||
| testEnv *envtest.Environment | ||
| testCtx context.Context | ||
| testCancel context.CancelFunc | ||
| testServer *httptest.Server | ||
| testHTTPClient = &http.Client{Timeout: 10 * time.Second} | ||
| ) | ||
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| func TestMain(m *testing.M) { | ||
| testCtx, testCancel = context.WithCancel(context.TODO()) | ||
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| log.Println("bootstrapping test environment") | ||
| testEnv = &envtest.Environment{} | ||
| cfg, err := testEnv.Start() | ||
| requireNoError(err) | ||
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| requireNoError(clientgoscheme.AddToScheme(scheme)) | ||
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| testK8sClient, err = client.New(cfg, client.Options{Scheme: scheme}) | ||
| requireNoError(err) | ||
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| requireNoError(testK8sClient.Create(testCtx, &corev1.Namespace{ | ||
| ObjectMeta: metav1.ObjectMeta{Name: testNamespace}, | ||
| })) | ||
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| mgr, err := ctrl.NewManager(cfg, ctrl.Options{ | ||
| Scheme: scheme, | ||
| Metrics: metricsserver.Options{ | ||
| BindAddress: "0", | ||
| }, | ||
| }) | ||
| requireNoError(err) | ||
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| fifo := NewFIFOQueueManager(1, 1000) | ||
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| endpoints, err := NewEndpointsManager(mgr) | ||
| requireNoError(err) | ||
| endpoints.EndpointSizeCallback = fifo.UpdateQueueSize | ||
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| scaler, err := NewDeploymentManager(mgr) | ||
| requireNoError(err) | ||
| scaler.Namespace = testNamespace | ||
| scaler.ScaleDownPeriod = 30 * time.Second | ||
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| autoscaler := NewAutoscaler() | ||
| autoscaler.Interval = 3 * time.Second | ||
| autoscaler.AverageCount = 10 // 10 * 3 seconds = 30 sec avg | ||
| autoscaler.Scaler = scaler | ||
| autoscaler.FIFO = fifo | ||
| go autoscaler.Start() | ||
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| handler := &Handler{ | ||
| Deployments: scaler, | ||
| Endpoints: endpoints, | ||
| FIFO: fifo, | ||
| } | ||
| testServer = httptest.NewServer(handler) | ||
| defer testServer.Close() | ||
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| ctx := ctrl.SetupSignalHandler() | ||
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| go func() { | ||
| log.Println("starting manager") | ||
| requireNoError(mgr.Start(ctx)) | ||
| }() | ||
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| log.Println("running tests") | ||
| code := m.Run() | ||
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| // TODO: Run cleanup on ctrl-C, etc. | ||
| log.Println("stopping manager") | ||
| testCancel() | ||
| log.Println("stopping test environment") | ||
| requireNoError(testEnv.Stop()) | ||
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| os.Exit(code) | ||
| } | ||
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| func requireNoError(err error) { | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| } |