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Merge pull request #98636 from knabben/netpol-udp-tests

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Adding UDP network policies tests
This commit is contained in:
Kubernetes Prow Robot 2021-02-14 07:27:04 -08:00 committed by GitHub
commit 3081b481b5
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2 changed files with 75 additions and 1 deletions
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2
test/e2e/network/netpol/kubemanager.go
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@ -116,7 +116,7 @@ func (k *kubeManager) probeConnectivity(nsFrom string, podFrom string, container
case v1.ProtocolTCP:
cmd = []string{"/agnhost", "connect", fmt.Sprintf("%s:%d", addrTo, toPort), "--timeout=1s", "--protocol=tcp"}
case v1.ProtocolUDP:
cmd = []string{"nc", "-v", "-z", "-w", "1", "-u", addrTo, fmt.Sprintf("%d", toPort)}
cmd = []string{"/agnhost", "connect", fmt.Sprintf("%s:%d", addrTo, toPort), "--timeout=1s", "--protocol=udp"}
default:
framework.Failf("protocol %s not supported", protocol)
}

74
test/e2e/network/netpol/network_policy.go
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@ -961,6 +961,80 @@ var _ = SIGDescribeCopy("Netpol [LinuxOnly]", func() {
})
})
var _ = SIGDescribeCopy("Netpol [Feature:UDPConnectivity][LinuxOnly]", func() {
f := framework.NewDefaultFramework("udp-network-policy")
ginkgo.BeforeEach(func() {
// Windows does not support UDP testing via agnhost.
e2eskipper.SkipIfNodeOSDistroIs("windows")
})
ginkgo.Context("NetworkPolicy between server and client using UDP", func() {
ginkgo.BeforeEach(func() {
initializeResourcesByFixedNS(f)
})
ginkgo.AfterEach(func() {
if !useFixedNamespaces {
_, _, _, model, k8s := getK8SModel(f)
framework.ExpectNoError(k8s.deleteNamespaces(model.NamespaceNames), "unable to clean up UDP netpol namespaces")
}
})
ginkgo.It("should support a 'default-deny-ingress' policy [Feature:NetworkPolicy]", func() {
nsX, _, _, model, k8s := getK8SModel(f)
policy := GetDenyIngress("deny-all")
CreatePolicy(k8s, policy, nsX)
reachability := NewReachability(model.AllPods(), true)
reachability.ExpectPeer(&Peer{}, &Peer{Namespace: nsX}, false)
ValidateOrFail(k8s, model, &TestCase{ToPort: 80, Protocol: v1.ProtocolUDP, Reachability: reachability})
})
ginkgo.It("should enforce policy based on Ports [Feature:NetworkPolicy]", func() {
ginkgo.By("Creating a network policy allowPort81Policy which only allows allow listed namespaces (y) to connect on exactly one port (81)")
nsX, nsY, nsZ, model, k8s := getK8SModel(f)
allowedLabels := &metav1.LabelSelector{
MatchLabels: map[string]string{
"ns": nsY,
},
}
allowPort81Policy := GetAllowIngressByNamespaceAndPort("allow-ingress-on-port-81-ns-x", map[string]string{"pod": "a"}, allowedLabels, &intstr.IntOrString{IntVal: 81}, &protocolUDP)
CreatePolicy(k8s, allowPort81Policy, nsX)
reachability := NewReachability(model.AllPods(), true)
reachability.ExpectPeer(&Peer{Namespace: nsX}, &Peer{Namespace: nsX, Pod: "a"}, false)
reachability.ExpectPeer(&Peer{Namespace: nsZ}, &Peer{Namespace: nsX, Pod: "a"}, false)
ValidateOrFail(k8s, model, &TestCase{ToPort: 81, Protocol: v1.ProtocolUDP, Reachability: reachability})
})
ginkgo.It("should enforce policy to allow traffic only from a pod in a different namespace based on PodSelector and NamespaceSelector [Feature:NetworkPolicy]", func() {
nsX, nsY, _, model, k8s := getK8SModel(f)
allowedNamespaces := &metav1.LabelSelector{
MatchLabels: map[string]string{
"ns": nsY,
},
}
allowedPods := &metav1.LabelSelector{
MatchLabels: map[string]string{
"pod": "a",
},
}
policy := GetAllowIngressByNamespaceAndPod("allow-ns-y-pod-a-via-namespace-pod-selector", map[string]string{"pod": "a"}, allowedNamespaces, allowedPods)
CreatePolicy(k8s, policy, nsX)
reachability := NewReachability(model.AllPods(), true)
reachability.ExpectAllIngress(NewPodString(nsX, "a"), false)
reachability.Expect(NewPodString(nsY, "a"), NewPodString(nsX, "a"), true)
ValidateOrFail(k8s, model, &TestCase{ToPort: 80, Protocol: v1.ProtocolUDP, Reachability: reachability})
})
})
})
var _ = SIGDescribeCopy("Netpol [Feature:SCTPConnectivity][LinuxOnly][Disruptive]", func() {
f := framework.NewDefaultFramework("sctp-network-policy")