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add integration test

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This commit is contained in:
Antonio Ojea
2022-08-17 11:38:16 +02:00
committed by Antonio Ojea
parent 756f1bfe99
commit 23252d70b4
3 changed files with 406 additions and 71 deletions
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71
test/integration/controlplane/synthetic_controlplane_test.go
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@@ -695,77 +695,6 @@ func TestAPIServerService(t *testing.T) {
}
}
func TestServiceAlloc(t *testing.T) {
// Create an IPv4 single stack control-plane
serviceCIDR := "192.168.0.0/29"
client, _, tearDownFn := framework.StartTestServer(t, framework.TestServerSetup{
ModifyServerRunOptions: func(opts *options.ServerRunOptions) {
opts.ServiceClusterIPRanges = serviceCIDR
},
})
defer tearDownFn()
svc := func(i int) *corev1.Service {
return &corev1.Service{
ObjectMeta: metav1.ObjectMeta{
Name: fmt.Sprintf("svc-%v", i),
},
Spec: corev1.ServiceSpec{
Type: corev1.ServiceTypeClusterIP,
Ports: []corev1.ServicePort{
{Port: 80},
},
},
}
}
// Wait until the default "kubernetes" service is created.
if err := wait.Poll(250*time.Millisecond, time.Minute, func() (bool, error) {
_, err := client.CoreV1().Services(metav1.NamespaceDefault).Get(context.TODO(), "kubernetes", metav1.GetOptions{})
if err != nil && !apierrors.IsNotFound(err) {
return false, err
}
return !apierrors.IsNotFound(err), nil
}); err != nil {
t.Fatalf("creating kubernetes service timed out")
}
// make 5 more services to take up all IPs
for i := 0; i < 5; i++ {
if _, err := client.CoreV1().Services(metav1.NamespaceDefault).Create(context.TODO(), svc(i), metav1.CreateOptions{}); err != nil {
t.Error(err)
}
}
// Make another service. It will fail because we're out of cluster IPs
if _, err := client.CoreV1().Services(metav1.NamespaceDefault).Create(context.TODO(), svc(8), metav1.CreateOptions{}); err != nil {
if !strings.Contains(err.Error(), "range is full") {
t.Errorf("unexpected error text: %v", err)
}
} else {
svcs, err := client.CoreV1().Services(metav1.NamespaceAll).List(context.TODO(), metav1.ListOptions{})
if err != nil {
t.Fatalf("unexpected success, and error getting the services: %v", err)
}
allIPs := []string{}
for _, s := range svcs.Items {
allIPs = append(allIPs, s.Spec.ClusterIP)
}
t.Fatalf("unexpected creation success. The following IPs exist: %#v. It should only be possible to allocate 2 IP addresses in this cluster.\n\n%#v", allIPs, svcs)
}
// Delete the first service.
if err := client.CoreV1().Services(metav1.NamespaceDefault).Delete(context.TODO(), svc(1).ObjectMeta.Name, metav1.DeleteOptions{}); err != nil {
t.Fatalf("got unexpected error: %v", err)
}
// This time creating the second service should work.
if _, err := client.CoreV1().Services(metav1.NamespaceDefault).Create(context.TODO(), svc(8), metav1.CreateOptions{}); err != nil {
t.Fatalf("got unexpected error: %v", err)
}
}
// TestUpdateNodeObjects represents a simple version of the behavior of node checkins at steady
// state. This test allows for easy profiling of a realistic primary scenario for baseline CPU
// in very large clusters. It is disabled by default - start a kube-apiserver and pass