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Policies.go
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Policies.go
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// SPDX-License-Identifier: Apache-2.0
// Copyright 2017-2020 Authors of Cilium
package k8sTest
import (
"context"
"encoding/json"
"fmt"
"regexp"
"sync"
"time"
"github.com/cilium/cilium/api/v1/models"
"github.com/cilium/cilium/pkg/annotation"
"github.com/cilium/cilium/pkg/policy"
. "github.com/cilium/cilium/test/ginkgo-ext"
"github.com/cilium/cilium/test/helpers"
"github.com/google/uuid"
. "github.com/onsi/gomega"
"github.com/onsi/gomega/types"
"github.com/sirupsen/logrus"
v1 "k8s.io/api/core/v1"
)
var _ = SkipDescribeIf(func() bool {
// We only need to run on 4.9 with kube-proxy and net-next with KPR
// and the third node. Other CI jobs are not expected to increase
// code coverage.
//
// For GKE coverage, see the K8sPolicyTestExtended Describe block below.
return helpers.RunsOnGKE() || helpers.RunsOn419Kernel() || helpers.RunsOn54Kernel()
}, "K8sPolicyTest", func() {
var (
kubectl *helpers.Kubectl
// these are set in BeforeAll()
ciliumFilename string
demoPath string
l3Policy string
l3PolicyDeny string
l3NamedPortPolicy string
l3NamedPortPolicyDeny string
l7Policy string
l7NamedPortPolicy string
l7PolicyKafka string
l7PolicyTLS string
TLSCaCerts string
TLSArtiiCrt string
TLSArtiiKey string
TLSLyftCrt string
TLSLyftKey string
TLSCa string
serviceAccountPolicy string
serviceAccountPolicyDeny string
knpDenyIngress string
knpDenyEgress string
knpDenyIngressEgress string
cnpDenyIngress string
cnpDenyEgress string
knpAllowIngress string
knpAllowEgress string
cnpMatchExpression string
cnpMatchExpressionDeny string
connectivityCheckYml string
app1Service = "app1-service"
apps = []string{helpers.App1, helpers.App2, helpers.App3}
daemonCfg map[string]string
)
BeforeAll(func() {
kubectl = helpers.CreateKubectl(helpers.K8s1VMName(), logger)
demoPath = helpers.ManifestGet(kubectl.BasePath(), "demo-named-port.yaml")
l3Policy = helpers.ManifestGet(kubectl.BasePath(), "l3-l4-policy.yaml")
l3PolicyDeny = helpers.ManifestGet(kubectl.BasePath(), "l3-l4-policy-deny.yaml")
l3NamedPortPolicy = helpers.ManifestGet(kubectl.BasePath(), "l3-l4-policy-named-port.yaml")
l3NamedPortPolicyDeny = helpers.ManifestGet(kubectl.BasePath(), "l3-l4-policy-named-port-deny.yaml")
l7Policy = helpers.ManifestGet(kubectl.BasePath(), "l7-policy.yaml")
l7NamedPortPolicy = helpers.ManifestGet(kubectl.BasePath(), "l7-policy-named-port.yaml")
l7PolicyKafka = helpers.ManifestGet(kubectl.BasePath(), "l7-policy-kafka.yaml")
l7PolicyTLS = helpers.ManifestGet(kubectl.BasePath(), "l7-policy-TLS.yaml")
TLSCaCerts = helpers.ManifestGet(kubectl.BasePath(), "testCA.crt")
TLSArtiiCrt = helpers.ManifestGet(kubectl.BasePath(), "internal-artii.crt")
TLSArtiiKey = helpers.ManifestGet(kubectl.BasePath(), "internal-artii.key")
TLSLyftCrt = helpers.ManifestGet(kubectl.BasePath(), "internal-lyft.crt")
TLSLyftKey = helpers.ManifestGet(kubectl.BasePath(), "internal-lyft.key")
TLSCa = helpers.ManifestGet(kubectl.BasePath(), "ca.crt")
serviceAccountPolicy = helpers.ManifestGet(kubectl.BasePath(), "service-account.yaml")
serviceAccountPolicyDeny = helpers.ManifestGet(kubectl.BasePath(), "service-account-deny.yaml")
knpDenyIngress = helpers.ManifestGet(kubectl.BasePath(), "knp-default-deny-ingress.yaml")
knpDenyEgress = helpers.ManifestGet(kubectl.BasePath(), "knp-default-deny-egress.yaml")
knpDenyIngressEgress = helpers.ManifestGet(kubectl.BasePath(), "knp-default-deny-ingress-egress.yaml")
cnpDenyIngress = helpers.ManifestGet(kubectl.BasePath(), "cnp-default-deny-ingress.yaml")
cnpDenyEgress = helpers.ManifestGet(kubectl.BasePath(), "cnp-default-deny-egress.yaml")
knpAllowIngress = helpers.ManifestGet(kubectl.BasePath(), "knp-default-allow-ingress.yaml")
knpAllowEgress = helpers.ManifestGet(kubectl.BasePath(), "knp-default-allow-egress.yaml")
cnpMatchExpression = helpers.ManifestGet(kubectl.BasePath(), "cnp-matchexpressions.yaml")
cnpMatchExpressionDeny = helpers.ManifestGet(kubectl.BasePath(), "cnp-matchexpressions-deny.yaml")
connectivityCheckYml = kubectl.GetFilePath("../examples/kubernetes/connectivity-check/connectivity-check-proxy.yaml")
daemonCfg = map[string]string{
"tls.secretsBackend": "k8s",
}
ciliumFilename = helpers.TimestampFilename("cilium.yaml")
DeployCiliumOptionsAndDNS(kubectl, ciliumFilename, daemonCfg)
})
AfterFailed(func() {
kubectl.CiliumReport("cilium service list", "cilium endpoint list")
})
AfterAll(func() {
UninstallCiliumFromManifest(kubectl, ciliumFilename)
kubectl.CloseSSHClient()
})
JustAfterEach(func() {
kubectl.ValidateNoErrorsInLogs(CurrentGinkgoTestDescription().Duration)
})
Context("Basic Test", func() {
var (
ciliumPod string
clusterIP string
appPods map[string]string
namespaceForTest string
)
validateConnectivity := func(expectWorldSuccess, expectClusterSuccess bool) {
var wg sync.WaitGroup
for _, appPod := range []string{appPods[helpers.App2], appPods[helpers.App3]} {
wg.Add(1)
go func(pod string) {
defer GinkgoRecover()
defer wg.Done()
By("HTTP connectivity to 1.1.1.1")
res := kubectl.ExecPodCmd(
namespaceForTest, pod,
helpers.CurlWithRetries("http://1.1.1.1/", 5, true))
ExpectWithOffset(1, res).To(getMatcher(expectWorldSuccess),
"HTTP egress connectivity to 1.1.1.1 from pod %q", pod)
}(appPod)
wg.Add(1)
go func(pod string) {
defer GinkgoRecover()
defer wg.Done()
By("ICMP connectivity to 8.8.8.8")
res := kubectl.ExecPodCmd(
namespaceForTest, pod,
helpers.Ping("8.8.8.8"))
ExpectWithOffset(1, res).To(getMatcher(expectWorldSuccess),
"ICMP egress connectivity to 8.8.8.8 from pod %q", pod)
}(appPod)
wg.Add(1)
go func(pod string) {
defer GinkgoRecover()
defer wg.Done()
By("DNS lookup of kubernetes.default.svc.cluster.local")
// -R3 retry 3 times, -N1 ndots set to 1, -t A only lookup A records
res := kubectl.ExecPodCmd(
namespaceForTest, pod,
"host -v -R3 -N1 -t A kubernetes.default.svc.cluster.local.")
// kube-dns is always whitelisted so this should always work
ExpectWithOffset(1, res).To(getMatcher(expectWorldSuccess || expectClusterSuccess),
"DNS connectivity of kubernetes.default.svc.cluster.local from pod %q", pod)
}(appPod)
wg.Add(1)
go func(pod string) {
defer GinkgoRecover()
defer wg.Done()
By("HTTP connectivity from pod to pod")
res := kubectl.ExecPodCmd(
namespaceForTest, pod,
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
ExpectWithOffset(1, res).To(getMatcher(expectClusterSuccess),
"HTTP connectivity to clusterIP %q of app1 from pod %q", clusterIP, appPods[helpers.App2])
}(appPod)
}
wg.Wait()
}
BeforeAll(func() {
namespaceForTest = helpers.GenerateNamespaceForTest("")
kubectl.NamespaceDelete(namespaceForTest)
kubectl.NamespaceCreate(namespaceForTest).ExpectSuccess("could not create namespace")
kubectl.Apply(helpers.ApplyOptions{FilePath: demoPath, Namespace: namespaceForTest}).ExpectSuccess("could not create resource")
err := kubectl.WaitforPods(namespaceForTest, "-l zgroup=testapp", helpers.HelperTimeout)
Expect(err).Should(BeNil(), "Test pods are not ready after timeout")
ciliumPod, err = kubectl.GetCiliumPodOnNode(helpers.K8s1)
Expect(err).Should(BeNil(), "cannot get CiliumPod")
clusterIP, _, err = kubectl.GetServiceHostPort(namespaceForTest, app1Service)
Expect(err).To(BeNil(), "Cannot get service in %q namespace", namespaceForTest)
appPods = helpers.GetAppPods(apps, namespaceForTest, kubectl, "id")
logger.WithFields(logrus.Fields{
"ciliumPod": ciliumPod,
"clusterIP": clusterIP}).Info("Initial data")
})
AfterAll(func() {
kubectl.NamespaceDelete(namespaceForTest)
kubectl.Delete(demoPath)
ExpectAllPodsTerminated(kubectl)
})
BeforeEach(func() {
kubectl.CiliumExecMustSucceed(context.TODO(),
ciliumPod, fmt.Sprintf("cilium config %s=%s",
helpers.PolicyEnforcement, helpers.PolicyEnforcementDefault))
err := kubectl.CiliumEndpointWaitReady()
Expect(err).To(BeNil(), "Endpoints are not ready after timeout")
err = kubectl.WaitforPods(namespaceForTest, "-l zgroup=testapp", helpers.HelperTimeout)
Expect(err).Should(BeNil())
})
AfterEach(func() {
cmd := fmt.Sprintf("%s delete --all cnp,ccnp,netpol -n %s", helpers.KubectlCmd, namespaceForTest)
_ = kubectl.Exec(cmd)
})
It("checks all kind of Kubernetes policies", func() {
logger.Infof("PolicyRulesTest: cluster service ip '%s'", clusterIP)
By("Testing L3/L4 rules")
_, err := kubectl.CiliumPolicyAction(
namespaceForTest, l3Policy, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil())
for _, appName := range []string{helpers.App1, helpers.App2, helpers.App3} {
err = kubectl.WaitForCEPIdentity(namespaceForTest, appPods[appName])
Expect(err).Should(BeNil())
}
trace := kubectl.CiliumExecMustSucceed(context.TODO(), ciliumPod, fmt.Sprintf(
"cilium policy trace --src-k8s-pod %s:%s --dst-k8s-pod %s:%s --dport 80/TCP",
namespaceForTest, appPods[helpers.App2], namespaceForTest, appPods[helpers.App1]))
trace.ExpectContains("Final verdict: ALLOWED", "Policy trace output mismatch")
trace = kubectl.CiliumExecMustSucceed(context.TODO(), ciliumPod, fmt.Sprintf(
"cilium policy trace --src-k8s-pod %s:%s --dst-k8s-pod %s:%s --dport 0/ANY",
namespaceForTest, appPods[helpers.App3], namespaceForTest, appPods[helpers.App1]))
trace.ExpectContains("Final verdict: DENIED", "Policy trace output mismatch")
res := kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectSuccess("%q cannot curl clusterIP %q", appPods[helpers.App2], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("%q can curl to %q", appPods[helpers.App3], clusterIP)
By("Testing L3/L4 deny rules")
_, err = kubectl.CiliumPolicyAction(
namespaceForTest, l3PolicyDeny, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil())
trace = kubectl.CiliumExecMustSucceed(context.TODO(), ciliumPod, fmt.Sprintf(
"cilium policy trace --src-k8s-pod %s:%s --dst-k8s-pod %s:%s --dport 80/TCP",
namespaceForTest, appPods[helpers.App2], namespaceForTest, appPods[helpers.App1]))
trace.ExpectContains("Final verdict: DENIED", "Policy trace output mismatch")
trace = kubectl.CiliumExecMustSucceed(context.TODO(), ciliumPod, fmt.Sprintf(
"cilium policy trace --src-k8s-pod %s:%s --dst-k8s-pod %s:%s --dport 0/ANY",
namespaceForTest, appPods[helpers.App3], namespaceForTest, appPods[helpers.App1]))
trace.ExpectContains("Final verdict: DENIED", "Policy trace output mismatch")
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("%q can curl clusterIP %q", appPods[helpers.App2], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("%q can curl to %q", appPods[helpers.App3], clusterIP)
_, err = kubectl.CiliumPolicyAction(
namespaceForTest, l3Policy,
helpers.KubectlDelete, helpers.HelperTimeout)
Expect(err).Should(BeNil(), "Cannot delete L3 Policy")
_, err = kubectl.CiliumPolicyAction(
namespaceForTest, l3PolicyDeny,
helpers.KubectlDelete, helpers.HelperTimeout)
Expect(err).Should(BeNil(), "Cannot delete L3 Policy Deny")
By("Testing L7 Policy")
_, err = kubectl.CiliumPolicyAction(
namespaceForTest, l7Policy, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil(), "Cannot install %q policy", l7Policy)
// Cilium launches Envoy with path normalization enabled by default, so '//public' will be seen as '/public'.
// Note that 'hhtpd' performs slash merging and serves '/public' when '//public' is requested.
// Policy enforcement will block this if path normalization is not done prior as policy only allows '/public'.
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail("http://%s//public", clusterIP))
res.ExpectSuccess("Cannot connect from %q to 'http://%s//public'",
appPods[helpers.App2], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail(fmt.Sprintf("http://%s/private", clusterIP)))
res.ExpectFail("Unexpected connection from %q to 'http://%s/private'",
appPods[helpers.App2], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("Unexpected connection from %q to 'http://%s/public'",
appPods[helpers.App3], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail("http://%s/private", clusterIP))
res.ExpectFail("Unexpected connection from %q to 'http://%s/private'",
appPods[helpers.App3], clusterIP)
By("Testing L7 Policy with L3/L4 deny rules")
_, err = kubectl.CiliumPolicyAction(
namespaceForTest, l3PolicyDeny, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil())
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail("http://%s/public", clusterIP))
res.ExpectFail("Unexpected connection from %q to 'http://%s/public'",
appPods[helpers.App2], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail(fmt.Sprintf("http://%s/private", clusterIP)))
res.ExpectFail("Unexpected connection from %q to 'http://%s/private'",
appPods[helpers.App2], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("Unexpected connection from %q to 'http://%s/public'",
appPods[helpers.App3], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail("http://%s/private", clusterIP))
res.ExpectFail("Unexpected connection from %q to 'http://%s/private'",
appPods[helpers.App3], clusterIP)
}, 500)
It("checks policies with named ports", func() {
logger.Infof("PolicyRulesTest: cluster service ip '%s'", clusterIP)
By("Testing L3/L4 rules with named ports")
_, err := kubectl.CiliumPolicyAction(
namespaceForTest, l3NamedPortPolicy, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil())
for _, appName := range []string{helpers.App1, helpers.App2, helpers.App3} {
err = kubectl.WaitForCEPIdentity(namespaceForTest, appPods[appName])
Expect(err).Should(BeNil())
}
trace := kubectl.CiliumExecMustSucceed(context.TODO(), ciliumPod, fmt.Sprintf(
"cilium policy trace --src-k8s-pod %s:%s --dst-k8s-pod %s:%s --dport http-80/TCP",
namespaceForTest, appPods[helpers.App2], namespaceForTest, appPods[helpers.App1]))
trace.ExpectContains("Final verdict: ALLOWED", "Policy trace output mismatch")
trace = kubectl.CiliumExecMustSucceed(context.TODO(), ciliumPod, fmt.Sprintf(
"cilium policy trace --src-k8s-pod %s:%s --dst-k8s-pod %s:%s --dport 0/ANY",
namespaceForTest, appPods[helpers.App3], namespaceForTest, appPods[helpers.App1]))
trace.ExpectContains("Final verdict: DENIED", "Policy trace output mismatch")
res := kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectSuccess("%q cannot curl clusterIP %q", appPods[helpers.App2], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("%q can curl to %q", appPods[helpers.App3], clusterIP)
By("Testing L3/L4 deny rules with named ports")
_, err = kubectl.CiliumPolicyAction(
namespaceForTest, l3NamedPortPolicyDeny, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil())
trace = kubectl.CiliumExecMustSucceed(context.TODO(), ciliumPod, fmt.Sprintf(
"cilium policy trace --src-k8s-pod %s:%s --dst-k8s-pod %s:%s --dport http-80/TCP",
namespaceForTest, appPods[helpers.App2], namespaceForTest, appPods[helpers.App1]))
trace.ExpectContains("Final verdict: DENIED", "Policy trace output mismatch")
trace = kubectl.CiliumExecMustSucceed(context.TODO(), ciliumPod, fmt.Sprintf(
"cilium policy trace --src-k8s-pod %s:%s --dst-k8s-pod %s:%s --dport 0/ANY",
namespaceForTest, appPods[helpers.App3], namespaceForTest, appPods[helpers.App1]))
trace.ExpectContains("Final verdict: DENIED", "Policy trace output mismatch")
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("%q can curl clusterIP %q", appPods[helpers.App2], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("%q can curl to %q", appPods[helpers.App3], clusterIP)
_, err = kubectl.CiliumPolicyAction(
namespaceForTest, l3NamedPortPolicy,
helpers.KubectlDelete, helpers.HelperTimeout)
Expect(err).Should(BeNil(), "Cannot delete L3 Policy")
_, err = kubectl.CiliumPolicyAction(
namespaceForTest, l3NamedPortPolicyDeny,
helpers.KubectlDelete, helpers.HelperTimeout)
Expect(err).Should(BeNil(), "Cannot delete L3 Policy Deny")
By("Testing L7 Policy with named port")
_, err = kubectl.CiliumPolicyAction(
namespaceForTest, l7NamedPortPolicy, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil(), "Cannot install %q policy", l7NamedPortPolicy)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail("http://%s/public", clusterIP))
res.ExpectSuccess("Cannot connect from %q to 'http://%s/public'",
appPods[helpers.App2], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail(fmt.Sprintf("http://%s/private", clusterIP)))
res.ExpectFail("Unexpected connection from %q to 'http://%s/private'",
appPods[helpers.App2], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("Unexpected connection from %q to 'http://%s/public'",
appPods[helpers.App3], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail("http://%s/private", clusterIP))
res.ExpectFail("Unexpected connection from %q to 'http://%s/private'",
appPods[helpers.App3], clusterIP)
By("Testing L7 Policy with L3/L4 deny rules with named ports")
_, err = kubectl.CiliumPolicyAction(
namespaceForTest, l3NamedPortPolicyDeny, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil())
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail("http://%s/public", clusterIP))
res.ExpectFail("Unexpected connection from %q to 'http://%s/public'",
appPods[helpers.App2], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail(fmt.Sprintf("http://%s/private", clusterIP)))
res.ExpectFail("Unexpected connection from %q to 'http://%s/private'",
appPods[helpers.App2], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("Unexpected connection from %q to 'http://%s/public'",
appPods[helpers.App3], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail("http://%s/private", clusterIP))
res.ExpectFail("Unexpected connection from %q to 'http://%s/private'",
appPods[helpers.App3], clusterIP)
}, 500)
SkipItIf(helpers.SkipQuarantined, "TLS policy", func() {
By("Testing L7 Policy with TLS")
res := kubectl.CreateSecret("generic", "user-agent", "default", "--from-literal=user-agent=CURRL")
res.ExpectSuccess("Cannot create secret %s", "user-agent")
res = kubectl.CreateSecret("generic", "test-client", "default", "--from-file="+TLSCa)
res.ExpectSuccess("Cannot create secret %s", "test-client")
res = kubectl.CreateSecret("tls", "artii-server", "default", "--cert="+TLSArtiiCrt+" --key="+TLSArtiiKey)
res.ExpectSuccess("Cannot create secret %s", "artii-server")
res = kubectl.CreateSecret("tls", "lyft-server", "default", "--cert="+TLSLyftCrt+" --key="+TLSLyftKey)
res.ExpectSuccess("Cannot create secret %s", "lyft-server")
res = kubectl.CopyFileToPod(namespaceForTest, appPods[helpers.App2], TLSCaCerts, "/cacert.pem")
res.ExpectSuccess("Cannot copy certs to %s", appPods[helpers.App2])
_, err := kubectl.CiliumPolicyAction(
namespaceForTest, l7PolicyTLS, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil(), "Cannot install %q policy", l7PolicyTLS)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlWithRetries("-4 --max-time 15 %s 'https://artii.herokuapp.com/make?text=cilium&font=univers'", 5, true, "-v --cacert /cacert.pem"))
res.ExpectSuccess("Cannot connect from %q to 'https://artii.herokuapp.com/make?text=cilium&font=univers'",
appPods[helpers.App2])
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlWithRetries("-4 %s 'https://artii.herokuapp.com:443/fonts_list'", 5, true, "-v --cacert /cacert.pem"))
res.ExpectFailWithError("403 Forbidden", "Unexpected connection from %q to 'https://artii.herokuapp.com:443/fonts_list'",
appPods[helpers.App2])
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlWithRetries("-4 %s https://www.lyft.com:443/privacy", 5, true, "-v --cacert /cacert.pem"))
res.ExpectSuccess("Cannot connect from %q to 'https://www.lyft.com:443/privacy'",
appPods[helpers.App2])
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlWithRetries("-4 %s https://www.lyft.com:443/private", 5, true, "-v --cacert /cacert.pem"))
res.ExpectFailWithError("403 Forbidden", "Unexpected connection from %q to 'https://www.lyft.com:443/private'",
appPods[helpers.App2])
}, 500)
It("Invalid Policy report status correctly", func() {
manifest := helpers.ManifestGet(kubectl.BasePath(), "invalid_cnp.yaml")
cnpName := "foo"
kubectl.Apply(helpers.ApplyOptions{FilePath: manifest, Namespace: namespaceForTest}).ExpectSuccess("Cannot apply policy manifest")
body := func() bool {
cnp := kubectl.GetCNP(namespaceForTest, cnpName)
if cnp != nil && len(cnp.Status.Nodes) > 0 {
for _, node := range cnp.Status.Nodes {
if node.Error == "" {
return false
}
}
return true
}
return false
}
err := helpers.WithTimeout(
body,
fmt.Sprintf("CNP %q does not report the status correctly after timeout", cnpName),
&helpers.TimeoutConfig{Timeout: 100 * time.Second})
Expect(err).To(BeNil(), "CNP status for invalid policy did not update correctly")
})
It("ServiceAccount Based Enforcement", func() {
// Load policy allowing serviceAccount of app2 to talk
// to app1 on port 80 TCP
_, err := kubectl.CiliumPolicyAction(
namespaceForTest, serviceAccountPolicy, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil())
for _, appName := range []string{helpers.App1, helpers.App2, helpers.App3} {
err = kubectl.WaitForCEPIdentity(namespaceForTest, appPods[appName])
Expect(err).Should(BeNil())
}
trace := kubectl.CiliumExecMustSucceed(context.TODO(), ciliumPod, fmt.Sprintf(
"cilium policy trace --src-k8s-pod %s:%s --dst-k8s-pod %s:%s --dport 80/TCP",
namespaceForTest, appPods[helpers.App2], namespaceForTest, appPods[helpers.App1]))
trace.ExpectContains("Final verdict: ALLOWED", "Policy trace output mismatch")
trace = kubectl.CiliumExecMustSucceed(context.TODO(), ciliumPod, fmt.Sprintf(
"cilium policy trace --src-k8s-pod %s:%s --dst-k8s-pod %s:%s --dport 0/ANY",
namespaceForTest, appPods[helpers.App3], namespaceForTest, appPods[helpers.App1]))
trace.ExpectContains("Final verdict: DENIED", "Policy trace output mismatch")
res := kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectSuccess("%q cannot curl clusterIP %q", appPods[helpers.App2], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("%q can curl to %q", appPods[helpers.App3], clusterIP)
By("Testing ServiceAccount Based Enforcement with Policy Denies")
// Load policy denying serviceAccount of app2 to talk
// to app1 on port 80 TCP
_, err = kubectl.CiliumPolicyAction(
namespaceForTest, serviceAccountPolicyDeny, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil())
for _, appName := range []string{helpers.App1, helpers.App2, helpers.App3} {
err = kubectl.WaitForCEPIdentity(namespaceForTest, appPods[appName])
Expect(err).Should(BeNil())
}
trace = kubectl.CiliumExecMustSucceed(context.TODO(), ciliumPod, fmt.Sprintf(
"cilium policy trace --src-k8s-pod %s:%s --dst-k8s-pod %s:%s --dport 80/TCP",
namespaceForTest, appPods[helpers.App2], namespaceForTest, appPods[helpers.App1]))
trace.ExpectContains("Final verdict: DENIED", "Policy trace output mismatch")
trace = kubectl.CiliumExecMustSucceed(context.TODO(), ciliumPod, fmt.Sprintf(
"cilium policy trace --src-k8s-pod %s:%s --dst-k8s-pod %s:%s --dport 0/ANY",
namespaceForTest, appPods[helpers.App3], namespaceForTest, appPods[helpers.App1]))
trace.ExpectContains("Final verdict: DENIED", "Policy trace output mismatch")
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("%q can curl clusterIP %q", appPods[helpers.App2], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("%q can curl to %q", appPods[helpers.App3], clusterIP)
}, 500)
It("CNP test MatchExpressions key", func() {
_, err := kubectl.CiliumPolicyAction(
namespaceForTest, cnpMatchExpression, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil(), "cannot install policy %s", cnpMatchExpression)
res := kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectSuccess("%q cannot curl clusterIP %q", appPods[helpers.App2], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("%q can curl to %q", appPods[helpers.App3], clusterIP)
By("Testing CNP test MatchExpressions key with policy Denies")
_, err = kubectl.CiliumPolicyAction(
namespaceForTest, cnpMatchExpressionDeny, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil(), "cannot install policy %s", cnpMatchExpression)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("%q can curl clusterIP %q", appPods[helpers.App2], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("%q can curl to %q", appPods[helpers.App3], clusterIP)
})
It("Denies traffic with k8s default-deny ingress policy", func() {
res := kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectSuccess("%q cannot curl clusterIP %q", appPods[helpers.App2], clusterIP)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectSuccess("%q cannot curl to %q", appPods[helpers.App3], clusterIP)
By("Installing knp ingress default-deny")
// Import the policy and wait for all required endpoints to enforce the policy
_, err := kubectl.CiliumPolicyAction(
namespaceForTest, knpDenyIngress, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil(),
"L3 deny-ingress Policy cannot be applied in %q namespace", namespaceForTest)
By("Testing connectivity with ingress default-deny policy loaded")
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("Ingress connectivity should be denied by policy")
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("Ingress connectivity should be denied by policy")
})
It("Denies traffic with k8s default-deny egress policy", func() {
By("Installing knp egress default-deny")
_, err := kubectl.CiliumPolicyAction(
namespaceForTest, knpDenyEgress, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil(),
"L3 deny-egress Policy cannot be applied in %q namespace", namespaceForTest)
By("Testing if egress policy enforcement is enabled on the endpoint")
for _, pod := range []string{appPods[helpers.App2], appPods[helpers.App3]} {
res := kubectl.ExecPodCmd(
namespaceForTest, pod,
helpers.CurlFail("http://1.1.1.1/"))
res.ExpectFail("Egress connectivity should be denied for pod %q", pod)
res = kubectl.ExecPodCmd(
namespaceForTest, pod,
helpers.Ping("8.8.8.8"))
res.ExpectFail("Egress ping connectivity should be denied for pod %q", pod)
res = kubectl.ExecPodCmd(
namespaceForTest, pod,
"host kubernetes.default.svc.cluster.local")
res.ExpectFail("Egress DNS connectivity should be denied for pod %q", pod)
}
})
It("Denies traffic with k8s default-deny ingress-egress policy", func() {
By("Installing knp ingress-egress default-deny")
_, err := kubectl.CiliumPolicyAction(
namespaceForTest, knpDenyIngressEgress, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil(),
"L3 deny-ingress-egress policy cannot be applied in %q namespace", namespaceForTest)
By("Testing if egress and ingress policy enforcement is enabled on the endpoint")
for _, pod := range []string{appPods[helpers.App2], appPods[helpers.App3]} {
res := kubectl.ExecPodCmd(
namespaceForTest, pod,
helpers.CurlFail("http://1.1.1.1/"))
res.ExpectFail("Egress connectivity should be denied for pod %q", pod)
res = kubectl.ExecPodCmd(
namespaceForTest, pod,
helpers.Ping("8.8.8.8"))
res.ExpectFail("Egress ping connectivity should be denied for pod %q", pod)
res = kubectl.ExecPodCmd(
namespaceForTest, pod,
"host kubernetes.default.svc.cluster.local")
res.ExpectFail("Egress DNS connectivity should be denied for pod %q", pod)
}
By("Testing ingress connectivity with default-deny policy loaded")
res := kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("Ingress connectivity should be denied by policy")
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("Ingress connectivity should be denied by policy")
})
It("Denies traffic with cnp default-deny ingress policy", func() {
By("Installing cnp ingress default-deny")
_, err := kubectl.CiliumPolicyAction(
namespaceForTest, cnpDenyIngress, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil(),
"L3 deny-ingress Policy cannot be applied in %q namespace", namespaceForTest)
By("Testing connectivity with ingress default-deny policy loaded")
res := kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
res.ExpectFail("Ingress connectivity should be denied by policy")
By("Testing egress connnectivity works correctly")
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.PingWithCount("8.8.8.8", 25))
res.ExpectSuccess("Egress ping connectivity should work")
})
It("Denies traffic with cnp default-deny egress policy", func() {
By("Installing cnp egress default-deny")
_, err := kubectl.CiliumPolicyAction(
namespaceForTest, cnpDenyEgress, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil(),
"L3 deny-egress Policy cannot be applied in %q namespace", namespaceForTest)
for _, pod := range apps {
res := kubectl.ExecPodCmd(
namespaceForTest, pod,
helpers.CurlFail("http://1.1.1.1/"))
res.ExpectFail("Egress connectivity should be denied for pod %q", pod)
res = kubectl.ExecPodCmd(
namespaceForTest, pod,
helpers.Ping("8.8.8.8"))
res.ExpectFail("Egress ping connectivity should be denied for pod %q", pod)
res = kubectl.ExecPodCmd(
namespaceForTest, pod,
"host kubernetes.default.svc.cluster.local")
res.ExpectFail("Egress DNS connectivity should be denied for pod %q", pod)
}
})
It("Allows traffic with k8s default-allow ingress policy", func() {
By("Installing ingress default-allow")
_, err := kubectl.CiliumPolicyAction(
namespaceForTest, knpAllowIngress, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil(),
"L3 allow-ingress Policy cannot be applied in %q namespace", namespaceForTest)
By("Testing connectivity with ingress default-allow policy loaded")
res := kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail("http://%s/public", clusterIP))
res.ExpectSuccess("Ingress connectivity should be allowed by policy")
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail("http://%s/public", clusterIP))
res.ExpectSuccess("Ingress connectivity should be allowed by policy")
})
It("Allows traffic with k8s default-allow egress policy", func() {
By("Installing egress default-allow")
_, err := kubectl.CiliumPolicyAction(
namespaceForTest, knpAllowEgress, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil(),
"L3 allow-egress Policy cannot be applied in %q namespace", namespaceForTest)
By("Checking connectivity between pods and external services after installing egress policy")
for _, pod := range []string{appPods[helpers.App2], appPods[helpers.App3]} {
res := kubectl.ExecPodCmd(
namespaceForTest, pod,
helpers.CurlWithRetries("http://1.1.1.1/", 5, true))
res.ExpectSuccess("Egress connectivity should be allowed for pod %q", pod)
res = kubectl.ExecPodCmd(
namespaceForTest, pod,
helpers.Ping("8.8.8.8"))
res.ExpectSuccess("Egress ping connectivity should be allowed for pod %q", pod)
// -R3 retry 3 times, -N1 ndots set to 1, -t A only lookup A records
res = kubectl.ExecPodCmd(
namespaceForTest, pod,
"host -v -R3 -N1 -t A kubernetes.default.svc.cluster.local.")
res.ExpectSuccess("Egress DNS connectivity should be allowed for pod %q", pod)
}
})
Context("Validate to-entities policies", func() {
const (
WorldConnectivityDeny = false
WorldConnectivityAllow = true
ClusterConnectivityDeny = false
ClusterConnectivityAllow = true
)
var (
cnpToEntitiesAll string
ccnpToEntitiesAllDeny string
cnpToEntitiesWorld string
cnpToEntitiesCluster string
cnpToEntitiesHost string
)
BeforeAll(func() {
cnpToEntitiesAll = helpers.ManifestGet(kubectl.BasePath(), "cnp-to-entities-all.yaml")
ccnpToEntitiesAllDeny = helpers.ManifestGet(kubectl.BasePath(), "ccnp-to-entities-all-deny.yaml")
cnpToEntitiesWorld = helpers.ManifestGet(kubectl.BasePath(), "cnp-to-entities-world.yaml")
cnpToEntitiesCluster = helpers.ManifestGet(kubectl.BasePath(), "cnp-to-entities-cluster.yaml")
cnpToEntitiesHost = helpers.ManifestGet(kubectl.BasePath(), "cnp-to-entities-host.yaml")
})
It("Validate toEntities All", func() {
By("Installing toEntities All")
importPolicy(kubectl, namespaceForTest, cnpToEntitiesAll, "to-entities-all")
By("Verifying policy correctness")
validateConnectivity(WorldConnectivityAllow, ClusterConnectivityAllow)
By("Installing deny toEntities All")
importPolicy(kubectl, namespaceForTest, ccnpToEntitiesAllDeny, "to-entities-all-deny")
By("Verifying policy correctness")
validateConnectivity(WorldConnectivityDeny, ClusterConnectivityDeny)
})
It("Validate toEntities World", func() {
By("Installing toEntities World")
importPolicy(kubectl, namespaceForTest, cnpToEntitiesWorld, "to-entities-world")
By("Verifying policy correctness")
validateConnectivity(WorldConnectivityAllow, ClusterConnectivityDeny)
})
It("Validate toEntities Cluster", func() {
By("Installing toEntities Cluster")
importPolicy(kubectl, namespaceForTest, cnpToEntitiesCluster, "to-entities-cluster")
By("Verifying policy correctness")
validateConnectivity(WorldConnectivityDeny, ClusterConnectivityAllow)
})
It("Validate toEntities Host", func() {
By("Installing toEntities Host")
importPolicy(kubectl, namespaceForTest, cnpToEntitiesHost, "to-entities-host")
By("Verifying policy correctness")
validateConnectivity(WorldConnectivityDeny, ClusterConnectivityDeny)
})
})
Context("Validate CNP update", func() {
const (
allowAll = iota
denyFromApp3
denyAll
)
var (
cnpUpdateAllow string
cnpUpdateDeny string
cnpUpdateDenyAll string
cnpUpdateNoSpecs string
cnpUpdateDenyLabelled string
)
BeforeAll(func() {
cnpUpdateAllow = helpers.ManifestGet(kubectl.BasePath(), "cnp-update-allow-all.yaml")
cnpUpdateDenyAll = helpers.ManifestGet(kubectl.BasePath(), "cnp-update-deny-all.yaml")
cnpUpdateDeny = helpers.ManifestGet(kubectl.BasePath(), "cnp-update-deny-ingress.yaml")
cnpUpdateNoSpecs = helpers.ManifestGet(kubectl.BasePath(), "cnp-update-no-specs.yaml")
cnpUpdateDenyLabelled = helpers.ManifestGet(kubectl.BasePath(), "cnp-update-deny-ingress-labelled.yaml")
})
validateL3L4 := func(allow int) {
var allowApp2, allowApp3 bool
switch allow {
case allowAll:
allowApp2 = true
allowApp3 = true
case denyFromApp3:
allowApp2 = true
case denyAll:
}
res := kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App2],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
ExpectWithOffset(1, res).To(getMatcher(allowApp2),
"%q curl clusterIP %q (expected to allow: %t)",
appPods[helpers.App2], clusterIP, allowApp2)
res = kubectl.ExecPodCmd(
namespaceForTest, appPods[helpers.App3],
helpers.CurlFail(fmt.Sprintf("http://%s/public", clusterIP)))
ExpectWithOffset(1, res).To(getMatcher(allowApp3),
"%q curl clusterIP %q (expected to allow: %t)",
appPods[helpers.App3], clusterIP, allowApp3)
}
It("Enforces connectivity correctly when the same L3/L4 CNP is updated", func() {
By("Applying default allow policy")
_, err := kubectl.CiliumPolicyAction(
namespaceForTest, cnpUpdateAllow, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil(), "%q Policy cannot be applied", cnpUpdateAllow)
validateL3L4(allowAll)
By("Applying l3-l4 policy")
_, err = kubectl.CiliumPolicyAction(
namespaceForTest, cnpUpdateDeny, helpers.KubectlApply, helpers.HelperTimeout)
Expect(err).Should(BeNil(), "%q Policy cannot be applied", cnpUpdateDeny)
validateL3L4(denyFromApp3)