|
| 1 | +package cluster |
| 2 | + |
| 3 | +import ( |
| 4 | + "bufio" |
| 5 | + "fmt" |
| 6 | + "os" |
| 7 | + "path/filepath" |
| 8 | + "strings" |
| 9 | + |
| 10 | + g "github.com/onsi/ginkgo" |
| 11 | + o "github.com/onsi/gomega" |
| 12 | + |
| 13 | + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" |
| 14 | + apiv1 "k8s.io/kubernetes/pkg/api/v1" |
| 15 | + "k8s.io/kubernetes/test/e2e/framework" |
| 16 | +) |
| 17 | + |
| 18 | +var _ = g.Describe("[Feature:Audit] Basic audit", func() { |
| 19 | + f := framework.NewDefaultFramework("audit") |
| 20 | + |
| 21 | + g.It("should audit API calls", func() { |
| 22 | + namespace := f.Namespace.Name |
| 23 | + |
| 24 | + // Create & Delete pod |
| 25 | + pod := &apiv1.Pod{ |
| 26 | + ObjectMeta: metav1.ObjectMeta{ |
| 27 | + Name: "audit-pod", |
| 28 | + }, |
| 29 | + Spec: apiv1.PodSpec{ |
| 30 | + Containers: []apiv1.Container{{ |
| 31 | + Name: "pause", |
| 32 | + Image: framework.GetPauseImageName(f.ClientSet), |
| 33 | + }}, |
| 34 | + }, |
| 35 | + } |
| 36 | + f.PodClient().CreateSync(pod) |
| 37 | + f.PodClient().DeleteSync(pod.Name, &metav1.DeleteOptions{}, framework.DefaultPodDeletionTimeout) |
| 38 | + |
| 39 | + // Create, Read, Delete secret |
| 40 | + secret := &apiv1.Secret{ |
| 41 | + ObjectMeta: metav1.ObjectMeta{ |
| 42 | + Name: "audit-secret", |
| 43 | + }, |
| 44 | + Data: map[string][]byte{ |
| 45 | + "top-secret": []byte("foo-bar"), |
| 46 | + }, |
| 47 | + } |
| 48 | + _, err := f.ClientSet.Core().Secrets(f.Namespace.Name).Create(secret) |
| 49 | + framework.ExpectNoError(err, "failed to create audit-secret") |
| 50 | + _, err = f.ClientSet.Core().Secrets(f.Namespace.Name).Get(secret.Name, metav1.GetOptions{}) |
| 51 | + framework.ExpectNoError(err, "failed to get audit-secret") |
| 52 | + err = f.ClientSet.Core().Secrets(f.Namespace.Name).Delete(secret.Name, &metav1.DeleteOptions{}) |
| 53 | + framework.ExpectNoError(err, "failed to delete audit-secret") |
| 54 | + |
| 55 | + // /version should not be audited |
| 56 | + _, err = f.ClientSet.Core().RESTClient().Get().AbsPath("/version").DoRaw() |
| 57 | + framework.ExpectNoError(err, "failed to query version") |
| 58 | + |
| 59 | + expectedEvents := []auditEvent{{ |
| 60 | + method: "create", |
| 61 | + namespace: namespace, |
| 62 | + uri: fmt.Sprintf("/api/v1/namespaces/%s/pods", namespace), |
| 63 | + response: "201", |
| 64 | + }, { |
| 65 | + method: "delete", |
| 66 | + namespace: namespace, |
| 67 | + uri: fmt.Sprintf("/api/v1/namespaces/%s/pods/%s", namespace, pod.Name), |
| 68 | + response: "200", |
| 69 | + }, { |
| 70 | + method: "create", |
| 71 | + namespace: namespace, |
| 72 | + uri: fmt.Sprintf("/api/v1/namespaces/%s/secrets", namespace), |
| 73 | + response: "201", |
| 74 | + }, { |
| 75 | + method: "get", |
| 76 | + namespace: namespace, |
| 77 | + uri: fmt.Sprintf("/api/v1/namespaces/%s/secrets/%s", namespace, secret.Name), |
| 78 | + response: "200", |
| 79 | + }, { |
| 80 | + method: "delete", |
| 81 | + namespace: namespace, |
| 82 | + uri: fmt.Sprintf("/api/v1/namespaces/%s/secrets/%s", namespace, secret.Name), |
| 83 | + response: "200", |
| 84 | + }} |
| 85 | + expectAuditLines(f, expectedEvents) |
| 86 | + }) |
| 87 | +}) |
| 88 | + |
| 89 | +type auditEvent struct { |
| 90 | + method, namespace, uri, response string |
| 91 | +} |
| 92 | + |
| 93 | +// Search the audit log for the expected audit lines. |
| 94 | +func expectAuditLines(f *framework.Framework, expected []auditEvent) { |
| 95 | + expectations := map[auditEvent]bool{} |
| 96 | + for _, event := range expected { |
| 97 | + expectations[event] = false |
| 98 | + } |
| 99 | + |
| 100 | + stream, err := os.Open(filepath.Join(os.Getenv("LOG_DIR"), "audit.log")) |
| 101 | + defer stream.Close() |
| 102 | + framework.ExpectNoError(err, "error opening audit log") |
| 103 | + scanner := bufio.NewScanner(stream) |
| 104 | + for scanner.Scan() { |
| 105 | + line := scanner.Text() |
| 106 | + event, err := parseAuditLine(line) |
| 107 | + framework.ExpectNoError(err) |
| 108 | + |
| 109 | + // If the event was expected, mark it as found. |
| 110 | + if _, found := expectations[event]; found { |
| 111 | + expectations[event] = true |
| 112 | + } |
| 113 | + } |
| 114 | + framework.ExpectNoError(scanner.Err(), "error reading audit log") |
| 115 | + |
| 116 | + for event, found := range expectations { |
| 117 | + o.Expect(found).To(o.BeTrue(), "Event %#v not found!", event) |
| 118 | + } |
| 119 | +} |
| 120 | + |
| 121 | +func parseAuditLine(line string) (auditEvent, error) { |
| 122 | + fields := strings.Fields(line) |
| 123 | + if len(fields) < 3 { |
| 124 | + return auditEvent{}, fmt.Errorf("could not parse audit line: %s", line) |
| 125 | + } |
| 126 | + // Ignore first field (timestamp) |
| 127 | + if fields[1] != "AUDIT:" { |
| 128 | + return auditEvent{}, fmt.Errorf("unexpected audit line format: %s", line) |
| 129 | + } |
| 130 | + fields = fields[2:] |
| 131 | + event := auditEvent{} |
| 132 | + for _, f := range fields { |
| 133 | + parts := strings.SplitN(f, "=", 2) |
| 134 | + if len(parts) != 2 { |
| 135 | + return auditEvent{}, fmt.Errorf("could not parse audit line (part: %q): %s", f, line) |
| 136 | + } |
| 137 | + value := strings.Trim(parts[1], "\"") |
| 138 | + switch parts[0] { |
| 139 | + case "method": |
| 140 | + event.method = value |
| 141 | + case "namespace": |
| 142 | + event.namespace = value |
| 143 | + case "uri": |
| 144 | + event.uri = value |
| 145 | + case "response": |
| 146 | + event.response = value |
| 147 | + } |
| 148 | + } |
| 149 | + return event, nil |
| 150 | +} |
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