Add AdvancedAuditing E2E test

test/e2e/BUILD

@@ -44,6 +44,7 @@ go_library(
     srcs = [
         "addon_update.go",
         "apparmor.go",
+        "audit.go",
         "cadvisor.go",
         "certificates.go",
         "cluster_upgrade.go",

test/e2e/audit.go

+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package e2e
+
+import (
+	"bufio"
+	"fmt"
+	"strings"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	apiv1 "k8s.io/kubernetes/pkg/api/v1"
+	"k8s.io/kubernetes/test/e2e/framework"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = framework.KubeDescribe("Advanced Audit [Feature:Audit]", func() {
+	f := framework.NewDefaultFramework("audit")
+
+	It("should audit API calls", func() {
+		namespace := f.Namespace.Name
+
+		// Create & Delete pod
+		pod := &apiv1.Pod{
+			ObjectMeta: metav1.ObjectMeta{
+				Name: "audit-pod",
+			},
+			Spec: apiv1.PodSpec{
+				Containers: []apiv1.Container{{
+					Name:  "pause",
+					Image: framework.GetPauseImageName(f.ClientSet),
+				}},
+			},
+		}
+		f.PodClient().CreateSync(pod)
+		f.PodClient().DeleteSync(pod.Name, &metav1.DeleteOptions{}, framework.DefaultPodDeletionTimeout)
+
+		// Create, Read, Delete secret
+		secret := &apiv1.Secret{
+			ObjectMeta: metav1.ObjectMeta{
+				Name: "audit-secret",
+			},
+			Data: map[string][]byte{
+				"top-secret": []byte("foo-bar"),
+			},
+		}
+		_, err := f.ClientSet.Core().Secrets(f.Namespace.Name).Create(secret)
+		framework.ExpectNoError(err, "failed to create audit-secret")
+		_, err = f.ClientSet.Core().Secrets(f.Namespace.Name).Get(secret.Name, metav1.GetOptions{})
+		framework.ExpectNoError(err, "failed to get audit-secret")
+		err = f.ClientSet.Core().Secrets(f.Namespace.Name).Delete(secret.Name, &metav1.DeleteOptions{})
+		framework.ExpectNoError(err, "failed to delete audit-secret")
+
+		// /version should not be audited
+		_, err = f.ClientSet.Core().RESTClient().Get().AbsPath("/version").DoRaw()
+		framework.ExpectNoError(err, "failed to query version")
+
+		expectedEvents := []auditEvent{{
+			method:    "create",
+			namespace: namespace,
+			uri:       fmt.Sprintf("/api/v1/namespaces/%s/pods", namespace),
+			response:  "201",
+		}, {
+			method:    "delete",
+			namespace: namespace,
+			uri:       fmt.Sprintf("/api/v1/namespaces/%s/pods/%s", namespace, pod.Name),
+			response:  "200",
+		}, {
+			method:    "create",
+			namespace: namespace,
+			uri:       fmt.Sprintf("/api/v1/namespaces/%s/secrets", namespace),
+			response:  "201",
+		}, {
+			method:    "get",
+			namespace: namespace,
+			uri:       fmt.Sprintf("/api/v1/namespaces/%s/secrets/%s", namespace, secret.Name),
+			response:  "200",
+		}, {
+			method:    "delete",
+			namespace: namespace,
+			uri:       fmt.Sprintf("/api/v1/namespaces/%s/secrets/%s", namespace, secret.Name),
+			response:  "200",
+		}}
+		expectAuditLines(f, expectedEvents)
+	})
+})
+
+type auditEvent struct {
+	method, namespace, uri, response string
+}
+
+// Search the audit log for the expected audit lines.
+func expectAuditLines(f *framework.Framework, expected []auditEvent) {
+	expectations := map[auditEvent]bool{}
+	for _, event := range expected {
+		expectations[event] = false
+	}
+
+	// Fetch the log stream.
+	stream, err := f.ClientSet.Core().RESTClient().Get().AbsPath("/logs/kube-apiserver-audit.log").Stream()
+	framework.ExpectNoError(err, "could not read audit log")
+	defer stream.Close()
+
+	scanner := bufio.NewScanner(stream)
+	for scanner.Scan() {
+		line := scanner.Text()
+		event, err := parseAuditLine(line)
+		framework.ExpectNoError(err)
+
+		// If the event was expected, mark it as found.
+		if _, found := expectations[event]; found {
+			expectations[event] = true
+		}
+
+		// /version should not be audited (filtered in the policy).
+		Expect(event.uri).NotTo(HavePrefix("/version"))
+	}
+	framework.ExpectNoError(scanner.Err(), "error reading audit log")
+
+	for event, found := range expectations {
+		Expect(found).To(BeTrue(), "Event %#v not found!", event)
+	}
+}
+
+func parseAuditLine(line string) (auditEvent, error) {
+	fields := strings.Fields(line)
+	if len(fields) < 3 {
+		return auditEvent{}, fmt.Errorf("could not parse audit line: %s", line)
+	}
+	// Ignore first field (timestamp)
+	if fields[1] != "AUDIT:" {
+		return auditEvent{}, fmt.Errorf("unexpected audit line format: %s", line)
+	}
+	fields = fields[2:]
+	event := auditEvent{}
+	for _, f := range fields {
+		parts := strings.SplitN(f, "=", 2)
+		if len(parts) != 2 {
+			return auditEvent{}, fmt.Errorf("could not parse audit line (part: %q): %s", f, line)
+		}
+		value := strings.Trim(parts[1], "\"")
+		switch parts[0] {
+		case "method":
+			event.method = value
+		case "namespace":
+			event.namespace = value
+		case "uri":
+			event.uri = value
+		case "response":
+			event.response = value
+		}
+	}
+	return event, nil
+}