service_cidrs.go

Documentation: k8s.io/kubernetes/test/e2e/network

     1  /*
     2  Copyright 2023 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package network
    18  
    19  import (
    20  	"context"
    21  
    22  	"github.com/onsi/ginkgo/v2"
    23  	v1 "k8s.io/api/core/v1"
    24  	networkingv1alpha1 "k8s.io/api/networking/v1alpha1"
    25  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    26  	"k8s.io/apimachinery/pkg/util/intstr"
    27  	"k8s.io/apimachinery/pkg/util/wait"
    28  	clientset "k8s.io/client-go/kubernetes"
    29  	"k8s.io/kubernetes/test/e2e/feature"
    30  	"k8s.io/kubernetes/test/e2e/framework"
    31  	e2enode "k8s.io/kubernetes/test/e2e/framework/node"
    32  	e2epod "k8s.io/kubernetes/test/e2e/framework/pod"
    33  	e2eservice "k8s.io/kubernetes/test/e2e/framework/service"
    34  	e2eskipper "k8s.io/kubernetes/test/e2e/framework/skipper"
    35  	"k8s.io/kubernetes/test/e2e/network/common"
    36  	admissionapi "k8s.io/pod-security-admission/api"
    37  )
    38  
    39  var _ = common.SIGDescribe(feature.ServiceCIDRs, func() {
    40  
    41  	fr := framework.NewDefaultFramework("servicecidrs")
    42  	fr.NamespacePodSecurityEnforceLevel = admissionapi.LevelPrivileged
    43  
    44  	var (
    45  		cs clientset.Interface
    46  		ns string
    47  	)
    48  
    49  	ginkgo.BeforeEach(func(ctx context.Context) {
    50  		cs = fr.ClientSet
    51  		ns = fr.Namespace.Name
    52  
    53  		nodes, err := e2enode.GetBoundedReadySchedulableNodes(ctx, cs, 2)
    54  		framework.ExpectNoError(err)
    55  		if len(nodes.Items) < 2 {
    56  			e2eskipper.Skipf(
    57  				"Test requires >= 2 Ready nodes, but there are only %v nodes",
    58  				len(nodes.Items))
    59  		}
    60  
    61  	})
    62  
    63  	ginkgo.It("should create Services and servce on different Service CIDRs", func(ctx context.Context) {
    64  		// create a new service CIDR
    65  		svcCIDR := &networkingv1alpha1.ServiceCIDR{
    66  			ObjectMeta: metav1.ObjectMeta{
    67  				Name: "test-svc-cidr",
    68  			},
    69  			Spec: networkingv1alpha1.ServiceCIDRSpec{
    70  				CIDRs: []string{"10.196.196.0/24"},
    71  			},
    72  		}
    73  		_, err := cs.NetworkingV1alpha1().ServiceCIDRs().Create(context.TODO(), svcCIDR, metav1.CreateOptions{})
    74  		framework.ExpectNoError(err, "error creating ServiceCIDR")
    75  		if pollErr := wait.PollUntilContextTimeout(ctx, framework.Poll, e2eservice.RespondingTimeout, false, func(ctx context.Context) (bool, error) {
    76  			svcCIDR, err := cs.NetworkingV1alpha1().ServiceCIDRs().Get(ctx, svcCIDR.Name, metav1.GetOptions{})
    77  			if err != nil {
    78  				return false, nil
    79  			}
    80  			return isReady(svcCIDR), nil
    81  		}); pollErr != nil {
    82  			framework.Failf("Failed to wait for serviceCIDR to be ready: %v", pollErr)
    83  		}
    84  
    85  		serviceName := "cidr1-test"
    86  		jig := e2eservice.NewTestJig(cs, ns, serviceName)
    87  
    88  		ginkgo.By("creating service " + serviceName + " with type=NodePort in namespace " + ns)
    89  		nodePortService, err := jig.CreateTCPService(ctx, func(svc *v1.Service) {
    90  			svc.Spec.ClusterIP = "10.196.196.77"
    91  			svc.Spec.Type = v1.ServiceTypeNodePort
    92  			svc.Spec.Ports = []v1.ServicePort{
    93  				{Port: 80, Name: "http", Protocol: v1.ProtocolTCP, TargetPort: intstr.FromInt(9376)},
    94  			}
    95  		})
    96  		framework.ExpectNoError(err)
    97  		err = jig.CreateServicePods(ctx, 2)
    98  		framework.ExpectNoError(err)
    99  		execPod := e2epod.CreateExecPodOrFail(ctx, cs, ns, "execpod", nil)
   100  		err = jig.CheckServiceReachability(ctx, nodePortService, execPod)
   101  		framework.ExpectNoError(err)
   102  	})
   103  
   104  })
   105  
   106  func isReady(serviceCIDR *networkingv1alpha1.ServiceCIDR) bool {
   107  	if serviceCIDR == nil {
   108  		return false
   109  	}
   110  
   111  	for _, condition := range serviceCIDR.Status.Conditions {
   112  		if condition.Type == string(networkingv1alpha1.ServiceCIDRConditionReady) {
   113  			return condition.Status == metav1.ConditionStatus(metav1.ConditionTrue)
   114  		}
   115  	}
   116  	return false
   117  }
   118
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