1296 lines
33 KiB
Go
1296 lines
33 KiB
Go
/*
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Copyright 2020 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package debug
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import (
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"fmt"
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"testing"
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"github.com/google/go-cmp/cmp"
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corev1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/utils/ptr"
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)
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var testNode = &corev1.Node{
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ObjectMeta: metav1.ObjectMeta{
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Name: "node-XXX",
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},
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}
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func TestLegacyProfile(t *testing.T) {
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pod := &corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{Name: "pod"},
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Spec: corev1.PodSpec{EphemeralContainers: []corev1.EphemeralContainer{
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{
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EphemeralContainerCommon: corev1.EphemeralContainerCommon{
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Name: "dbg", Image: "dbgimage",
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},
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},
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}},
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}
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tests := map[string]struct {
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pod *corev1.Pod
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containerName string
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target runtime.Object
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expectPod *corev1.Pod
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expectErr bool
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}{
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"bad inputs results in error": {
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pod: nil,
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containerName: "dbg",
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target: runtime.Object(nil),
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expectErr: true,
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},
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"debug by ephemeral container": {
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pod: pod,
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containerName: "dbg",
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target: pod,
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expectPod: &corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{Name: "pod"},
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Spec: corev1.PodSpec{EphemeralContainers: []corev1.EphemeralContainer{
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{
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EphemeralContainerCommon: corev1.EphemeralContainerCommon{Name: "dbg", Image: "dbgimage"},
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},
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}},
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},
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},
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"debug by pod copy": {
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pod: &corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "podcopy",
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Labels: map[string]string{
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"app": "podcopy",
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},
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Annotations: map[string]string{
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"test": "test",
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},
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},
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Spec: corev1.PodSpec{
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InitContainers: []corev1.Container{{Name: "init-container"}},
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Containers: []corev1.Container{
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{
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Name: "app",
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Image: "appimage",
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LivenessProbe: &corev1.Probe{},
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ReadinessProbe: &corev1.Probe{},
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StartupProbe: &corev1.Probe{},
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},
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{
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Name: "dbg",
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Image: "dbgimage",
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SecurityContext: &corev1.SecurityContext{
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Capabilities: &corev1.Capabilities{
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Add: []corev1.Capability{"NET_ADMIN"},
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},
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},
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},
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},
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},
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},
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containerName: "dbg",
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target: &corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "podcopy",
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Labels: map[string]string{
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"app": "podcopy",
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},
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Annotations: map[string]string{
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"test": "test",
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},
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},
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Spec: corev1.PodSpec{
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InitContainers: []corev1.Container{{Name: "init-container"}},
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Containers: []corev1.Container{
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{
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Name: "app",
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Image: "appimage",
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LivenessProbe: &corev1.Probe{},
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ReadinessProbe: &corev1.Probe{},
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StartupProbe: &corev1.Probe{},
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},
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},
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},
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},
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expectPod: &corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "podcopy",
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Annotations: map[string]string{
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"test": "test",
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},
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},
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Spec: corev1.PodSpec{
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InitContainers: []corev1.Container{{Name: "init-container"}},
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Containers: []corev1.Container{
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{
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Name: "app",
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Image: "appimage",
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LivenessProbe: &corev1.Probe{},
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ReadinessProbe: &corev1.Probe{},
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StartupProbe: &corev1.Probe{},
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},
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{
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Name: "dbg",
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Image: "dbgimage",
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SecurityContext: &corev1.SecurityContext{
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Capabilities: &corev1.Capabilities{
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Add: []corev1.Capability{"NET_ADMIN"},
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},
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},
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},
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},
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},
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},
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},
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"debug by node": {
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pod: &corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{Name: "pod"},
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Spec: corev1.PodSpec{
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Containers: []corev1.Container{
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{
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Name: "dbg",
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Image: "dbgimage",
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SecurityContext: &corev1.SecurityContext{
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Capabilities: &corev1.Capabilities{
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Add: []corev1.Capability{"NET_ADMIN"},
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},
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},
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},
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},
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},
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},
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containerName: "dbg",
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target: testNode,
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expectPod: &corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{Name: "pod"},
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Spec: corev1.PodSpec{
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HostNetwork: true,
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HostPID: true,
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HostIPC: true,
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Containers: []corev1.Container{
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{
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Name: "dbg",
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Image: "dbgimage",
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SecurityContext: &corev1.SecurityContext{
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Capabilities: &corev1.Capabilities{
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Add: []corev1.Capability{"NET_ADMIN"},
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},
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},
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VolumeMounts: []corev1.VolumeMount{
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{
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MountPath: "/host",
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Name: "host-root",
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},
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},
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},
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},
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Volumes: []corev1.Volume{
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{
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Name: "host-root",
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VolumeSource: corev1.VolumeSource{
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HostPath: &corev1.HostPathVolumeSource{Path: "/"},
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},
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},
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},
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},
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},
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},
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}
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for name, test := range tests {
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t.Run(name, func(t *testing.T) {
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applier := &legacyProfile{KeepFlags{InitContainers: true}}
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err := applier.Apply(test.pod, test.containerName, test.target)
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if (err != nil) != test.expectErr {
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t.Fatalf("expect error: %v, got error: %v", test.expectErr, (err != nil))
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}
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if err != nil {
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return
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}
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if diff := cmp.Diff(test.expectPod, test.pod); diff != "" {
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t.Error("unexpected diff in generated object: (-want +got):\n", diff)
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}
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})
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}
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}
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func TestGeneralProfile(t *testing.T) {
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pod := &corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{Name: "pod"},
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Spec: corev1.PodSpec{EphemeralContainers: []corev1.EphemeralContainer{
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{
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EphemeralContainerCommon: corev1.EphemeralContainerCommon{
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Name: "dbg", Image: "dbgimage",
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},
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},
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}},
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}
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tests := map[string]struct {
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pod *corev1.Pod
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containerName string
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target runtime.Object
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expectPod *corev1.Pod
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expectErr bool
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}{
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"bad inputs results in error": {
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pod: nil,
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containerName: "dbg",
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target: runtime.Object(nil),
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expectErr: true,
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},
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"debug by ephemeral container": {
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pod: pod,
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containerName: "dbg",
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target: pod,
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expectPod: &corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{Name: "pod"},
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Spec: corev1.PodSpec{EphemeralContainers: []corev1.EphemeralContainer{
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{
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EphemeralContainerCommon: corev1.EphemeralContainerCommon{
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Name: "dbg", Image: "dbgimage",
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SecurityContext: &corev1.SecurityContext{
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Capabilities: &corev1.Capabilities{
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Add: []corev1.Capability{"SYS_PTRACE"},
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},
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},
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},
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},
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}},
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},
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},
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"debug by pod copy": {
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pod: &corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "podcopy",
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Labels: map[string]string{
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"app": "podcopy",
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},
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Annotations: map[string]string{
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"test": "test",
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},
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},
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Spec: corev1.PodSpec{
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InitContainers: []corev1.Container{{Name: "init-container"}},
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Containers: []corev1.Container{
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{
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Name: "app",
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Image: "appimage",
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LivenessProbe: &corev1.Probe{},
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ReadinessProbe: &corev1.Probe{},
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StartupProbe: &corev1.Probe{},
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},
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{
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Name: "dbg",
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Image: "dbgimage",
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SecurityContext: &corev1.SecurityContext{
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Capabilities: &corev1.Capabilities{
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Add: []corev1.Capability{"NET_ADMIN"},
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},
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},
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},
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},
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},
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},
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containerName: "dbg",
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target: &corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "podcopy",
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Labels: map[string]string{
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"app": "podcopy",
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},
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Annotations: map[string]string{
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"test": "test",
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},
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},
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Spec: corev1.PodSpec{
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InitContainers: []corev1.Container{{Name: "init-container"}},
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Containers: []corev1.Container{
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{
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Name: "app",
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Image: "appimage",
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LivenessProbe: &corev1.Probe{},
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ReadinessProbe: &corev1.Probe{},
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StartupProbe: &corev1.Probe{},
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},
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},
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},
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},
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expectPod: &corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{Name: "podcopy"},
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Spec: corev1.PodSpec{
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InitContainers: []corev1.Container{{Name: "init-container"}},
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Containers: []corev1.Container{
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{Name: "app", Image: "appimage"},
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{
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Name: "dbg",
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Image: "dbgimage",
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SecurityContext: &corev1.SecurityContext{
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Capabilities: &corev1.Capabilities{
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Add: []corev1.Capability{"NET_ADMIN", "SYS_PTRACE"},
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},
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},
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},
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},
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ShareProcessNamespace: ptr.To(true),
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},
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},
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},
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"debug by node": {
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pod: &corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{Name: "pod"},
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Spec: corev1.PodSpec{
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Containers: []corev1.Container{
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{Name: "dbg", Image: "dbgimage"},
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},
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},
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},
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containerName: "dbg",
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target: testNode,
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expectPod: &corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{Name: "pod"},
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Spec: corev1.PodSpec{
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HostNetwork: true,
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HostPID: true,
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HostIPC: true,
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Containers: []corev1.Container{
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{
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Name: "dbg",
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Image: "dbgimage",
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VolumeMounts: []corev1.VolumeMount{
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{
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MountPath: "/host",
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Name: "host-root",
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},
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},
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},
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},
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Volumes: []corev1.Volume{
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{
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Name: "host-root",
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VolumeSource: corev1.VolumeSource{
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HostPath: &corev1.HostPathVolumeSource{Path: "/"},
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},
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},
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},
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},
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},
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},
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}
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for name, test := range tests {
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t.Run(name, func(t *testing.T) {
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applier := &generalProfile{KeepFlags{InitContainers: true}}
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err := applier.Apply(test.pod, test.containerName, test.target)
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if (err != nil) != test.expectErr {
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t.Fatalf("expect error: %v, got error: %v", test.expectErr, (err != nil))
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}
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if err != nil {
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return
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}
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if diff := cmp.Diff(test.expectPod, test.pod); diff != "" {
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t.Error("unexpected diff in generated object: (-want +got):\n", diff)
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}
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})
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}
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}
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func TestBaselineProfile(t *testing.T) {
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pod := &corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{Name: "pod"},
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Spec: corev1.PodSpec{EphemeralContainers: []corev1.EphemeralContainer{
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{
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EphemeralContainerCommon: corev1.EphemeralContainerCommon{
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Name: "dbg", Image: "dbgimage",
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SecurityContext: &corev1.SecurityContext{
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Capabilities: &corev1.Capabilities{
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Add: []corev1.Capability{"SYS_PTRACE"},
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},
|
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},
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},
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},
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}},
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}
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|
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tests := map[string]struct {
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pod *corev1.Pod
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containerName string
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target runtime.Object
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expectPod *corev1.Pod
|
|
expectErr bool
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}{
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"bad inputs results in error": {
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pod: nil,
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containerName: "dbg",
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target: runtime.Object(nil),
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expectErr: true,
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},
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"debug by ephemeral container": {
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pod: pod,
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containerName: "dbg",
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target: pod,
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expectPod: &corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{Name: "pod"},
|
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Spec: corev1.PodSpec{EphemeralContainers: []corev1.EphemeralContainer{
|
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{
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EphemeralContainerCommon: corev1.EphemeralContainerCommon{
|
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Name: "dbg", Image: "dbgimage",
|
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},
|
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},
|
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}},
|
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},
|
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},
|
|
"debug by pod copy": {
|
|
pod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "podcopy",
|
|
Labels: map[string]string{
|
|
"app": "podcopy",
|
|
},
|
|
Annotations: map[string]string{
|
|
"test": "test",
|
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},
|
|
},
|
|
Spec: corev1.PodSpec{
|
|
InitContainers: []corev1.Container{{Name: "init-container"}},
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "app",
|
|
Image: "appimage",
|
|
LivenessProbe: &corev1.Probe{},
|
|
ReadinessProbe: &corev1.Probe{},
|
|
StartupProbe: &corev1.Probe{},
|
|
},
|
|
{Name: "dbg", Image: "dbgimage"},
|
|
},
|
|
},
|
|
},
|
|
containerName: "dbg",
|
|
target: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "podcopy",
|
|
Labels: map[string]string{
|
|
"app": "podcopy",
|
|
},
|
|
Annotations: map[string]string{
|
|
"test": "test",
|
|
},
|
|
},
|
|
Spec: corev1.PodSpec{
|
|
InitContainers: []corev1.Container{{Name: "init-container"}},
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "app",
|
|
Image: "appimage",
|
|
LivenessProbe: &corev1.Probe{},
|
|
ReadinessProbe: &corev1.Probe{},
|
|
StartupProbe: &corev1.Probe{},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
expectPod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "podcopy"},
|
|
Spec: corev1.PodSpec{
|
|
ShareProcessNamespace: ptr.To(true),
|
|
InitContainers: []corev1.Container{{Name: "init-container"}},
|
|
Containers: []corev1.Container{
|
|
{Name: "app", Image: "appimage"},
|
|
{
|
|
Name: "dbg",
|
|
Image: "dbgimage",
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
"debug by node": {
|
|
pod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "pod"},
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{Name: "dbg", Image: "dbgimage"},
|
|
},
|
|
},
|
|
},
|
|
containerName: "dbg",
|
|
target: testNode,
|
|
expectPod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "pod"},
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "dbg",
|
|
Image: "dbgimage",
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
for name, test := range tests {
|
|
t.Run(name, func(t *testing.T) {
|
|
applier := &baselineProfile{KeepFlags{InitContainers: true}}
|
|
err := applier.Apply(test.pod, test.containerName, test.target)
|
|
if (err != nil) != test.expectErr {
|
|
t.Fatalf("expect error: %v, got error: %v", test.expectErr, (err != nil))
|
|
}
|
|
if err != nil {
|
|
return
|
|
}
|
|
if diff := cmp.Diff(test.expectPod, test.pod); diff != "" {
|
|
t.Error("unexpected diff in generated object: (-want +got):\n", diff)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestRestrictedProfile(t *testing.T) {
|
|
pod := &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "pod"},
|
|
Spec: corev1.PodSpec{EphemeralContainers: []corev1.EphemeralContainer{
|
|
{
|
|
EphemeralContainerCommon: corev1.EphemeralContainerCommon{
|
|
Name: "dbg", Image: "dbgimage",
|
|
SecurityContext: &corev1.SecurityContext{
|
|
Capabilities: &corev1.Capabilities{
|
|
Add: []corev1.Capability{"SYS_PTRACE"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}},
|
|
}
|
|
|
|
tests := map[string]struct {
|
|
pod *corev1.Pod
|
|
containerName string
|
|
target runtime.Object
|
|
expectPod *corev1.Pod
|
|
expectErr bool
|
|
}{
|
|
"bad inputs results in error": {
|
|
pod: nil,
|
|
containerName: "dbg",
|
|
target: runtime.Object(nil),
|
|
expectErr: true,
|
|
},
|
|
"debug by ephemeral container": {
|
|
pod: pod,
|
|
containerName: "dbg",
|
|
target: pod,
|
|
expectPod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "pod"},
|
|
Spec: corev1.PodSpec{EphemeralContainers: []corev1.EphemeralContainer{
|
|
{
|
|
EphemeralContainerCommon: corev1.EphemeralContainerCommon{
|
|
Name: "dbg", Image: "dbgimage",
|
|
SecurityContext: &corev1.SecurityContext{
|
|
RunAsNonRoot: ptr.To(true),
|
|
Capabilities: &corev1.Capabilities{
|
|
Drop: []corev1.Capability{"ALL"},
|
|
},
|
|
AllowPrivilegeEscalation: ptr.To(false),
|
|
SeccompProfile: &corev1.SeccompProfile{Type: "RuntimeDefault"},
|
|
},
|
|
},
|
|
},
|
|
}},
|
|
},
|
|
},
|
|
"debug by pod copy": {
|
|
pod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "podcopy",
|
|
Labels: map[string]string{
|
|
"app": "podcopy",
|
|
},
|
|
Annotations: map[string]string{
|
|
"test": "test",
|
|
},
|
|
},
|
|
Spec: corev1.PodSpec{
|
|
InitContainers: []corev1.Container{{Name: "init-container"}},
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "app",
|
|
Image: "appimage",
|
|
LivenessProbe: &corev1.Probe{},
|
|
ReadinessProbe: &corev1.Probe{},
|
|
StartupProbe: &corev1.Probe{},
|
|
},
|
|
{Name: "dbg", Image: "dbgimage"},
|
|
},
|
|
},
|
|
},
|
|
containerName: "dbg",
|
|
target: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "podcopy",
|
|
Labels: map[string]string{
|
|
"app": "podcopy",
|
|
},
|
|
Annotations: map[string]string{
|
|
"test": "test",
|
|
},
|
|
},
|
|
Spec: corev1.PodSpec{
|
|
InitContainers: []corev1.Container{{Name: "init-container"}},
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "app",
|
|
Image: "appimage",
|
|
LivenessProbe: &corev1.Probe{},
|
|
ReadinessProbe: &corev1.Probe{},
|
|
StartupProbe: &corev1.Probe{},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
expectPod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "podcopy"},
|
|
Spec: corev1.PodSpec{
|
|
ShareProcessNamespace: ptr.To(true),
|
|
InitContainers: []corev1.Container{{Name: "init-container"}},
|
|
Containers: []corev1.Container{
|
|
{Name: "app", Image: "appimage"},
|
|
{
|
|
Name: "dbg",
|
|
Image: "dbgimage",
|
|
SecurityContext: &corev1.SecurityContext{
|
|
RunAsNonRoot: ptr.To(true),
|
|
Capabilities: &corev1.Capabilities{
|
|
Drop: []corev1.Capability{"ALL"},
|
|
},
|
|
AllowPrivilegeEscalation: ptr.To(false),
|
|
SeccompProfile: &corev1.SeccompProfile{Type: "RuntimeDefault"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
"debug by node": {
|
|
pod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "pod"},
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "dbg",
|
|
Image: "dbgimage",
|
|
SecurityContext: &corev1.SecurityContext{
|
|
Capabilities: &corev1.Capabilities{
|
|
Add: []corev1.Capability{"ALL"},
|
|
},
|
|
AllowPrivilegeEscalation: ptr.To(false),
|
|
SeccompProfile: &corev1.SeccompProfile{Type: "RuntimeDefault"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
containerName: "dbg",
|
|
target: testNode,
|
|
expectPod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "pod"},
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "dbg",
|
|
Image: "dbgimage",
|
|
SecurityContext: &corev1.SecurityContext{
|
|
RunAsNonRoot: ptr.To(true),
|
|
Capabilities: &corev1.Capabilities{
|
|
Drop: []corev1.Capability{"ALL"},
|
|
},
|
|
AllowPrivilegeEscalation: ptr.To(false),
|
|
SeccompProfile: &corev1.SeccompProfile{Type: "RuntimeDefault"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
for name, test := range tests {
|
|
t.Run(name, func(t *testing.T) {
|
|
applier := &restrictedProfile{KeepFlags{InitContainers: true}}
|
|
err := applier.Apply(test.pod, test.containerName, test.target)
|
|
if (err != nil) != test.expectErr {
|
|
t.Fatalf("expect error: %v, got error: %v", test.expectErr, (err != nil))
|
|
}
|
|
if err != nil {
|
|
return
|
|
}
|
|
if diff := cmp.Diff(test.expectPod, test.pod); diff != "" {
|
|
t.Error("unexpected diff in generated object: (-want +got):\n", diff)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestNetAdminProfile(t *testing.T) {
|
|
pod := &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "pod"},
|
|
Spec: corev1.PodSpec{EphemeralContainers: []corev1.EphemeralContainer{
|
|
{
|
|
EphemeralContainerCommon: corev1.EphemeralContainerCommon{
|
|
Name: "dbg", Image: "dbgimage",
|
|
},
|
|
},
|
|
}},
|
|
}
|
|
|
|
tests := []struct {
|
|
name string
|
|
pod *corev1.Pod
|
|
containerName string
|
|
target runtime.Object
|
|
expectPod *corev1.Pod
|
|
expectErr error
|
|
}{
|
|
{
|
|
name: "nil target",
|
|
pod: pod,
|
|
containerName: "dbg",
|
|
target: nil,
|
|
expectErr: fmt.Errorf("netadmin profile: objects of type <nil> are not supported"),
|
|
},
|
|
{
|
|
name: "debug by ephemeral container",
|
|
pod: pod,
|
|
containerName: "dbg",
|
|
target: pod,
|
|
expectPod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "pod"},
|
|
Spec: corev1.PodSpec{EphemeralContainers: []corev1.EphemeralContainer{
|
|
{
|
|
EphemeralContainerCommon: corev1.EphemeralContainerCommon{
|
|
Name: "dbg", Image: "dbgimage",
|
|
SecurityContext: &corev1.SecurityContext{
|
|
Capabilities: &corev1.Capabilities{
|
|
Add: []corev1.Capability{"NET_ADMIN", "NET_RAW"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}},
|
|
},
|
|
},
|
|
{
|
|
name: "debug by pod copy",
|
|
pod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "podcopy",
|
|
Labels: map[string]string{
|
|
"app": "podcopy",
|
|
},
|
|
Annotations: map[string]string{
|
|
"test": "test",
|
|
},
|
|
},
|
|
Spec: corev1.PodSpec{
|
|
InitContainers: []corev1.Container{{Name: "init-container"}},
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "app",
|
|
Image: "appimage",
|
|
LivenessProbe: &corev1.Probe{},
|
|
ReadinessProbe: &corev1.Probe{},
|
|
StartupProbe: &corev1.Probe{},
|
|
},
|
|
{Name: "dbg", Image: "dbgimage"},
|
|
},
|
|
},
|
|
},
|
|
containerName: "dbg",
|
|
target: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "podcopy",
|
|
Labels: map[string]string{
|
|
"app": "podcopy",
|
|
},
|
|
Annotations: map[string]string{
|
|
"test": "test",
|
|
},
|
|
},
|
|
Spec: corev1.PodSpec{
|
|
InitContainers: []corev1.Container{{Name: "init-container"}},
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "app",
|
|
Image: "appimage",
|
|
LivenessProbe: &corev1.Probe{},
|
|
ReadinessProbe: &corev1.Probe{},
|
|
StartupProbe: &corev1.Probe{},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
expectPod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "podcopy"},
|
|
Spec: corev1.PodSpec{
|
|
ShareProcessNamespace: ptr.To(true),
|
|
InitContainers: []corev1.Container{{Name: "init-container"}},
|
|
Containers: []corev1.Container{
|
|
{Name: "app", Image: "appimage"},
|
|
{
|
|
Name: "dbg",
|
|
Image: "dbgimage",
|
|
SecurityContext: &corev1.SecurityContext{
|
|
Capabilities: &corev1.Capabilities{
|
|
Add: []corev1.Capability{"NET_ADMIN", "NET_RAW"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "debug by pod copy preserve existing capability",
|
|
pod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "podcopy"},
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "app",
|
|
Image: "appimage",
|
|
LivenessProbe: &corev1.Probe{},
|
|
ReadinessProbe: &corev1.Probe{},
|
|
StartupProbe: &corev1.Probe{},
|
|
},
|
|
{
|
|
Name: "dbg",
|
|
Image: "dbgimage",
|
|
SecurityContext: &corev1.SecurityContext{
|
|
Capabilities: &corev1.Capabilities{
|
|
Add: []corev1.Capability{"SYS_PTRACE"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
containerName: "dbg",
|
|
target: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "podcopy"},
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "app",
|
|
Image: "appimage",
|
|
LivenessProbe: &corev1.Probe{},
|
|
ReadinessProbe: &corev1.Probe{},
|
|
StartupProbe: &corev1.Probe{},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
expectPod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "podcopy"},
|
|
Spec: corev1.PodSpec{
|
|
ShareProcessNamespace: ptr.To(true),
|
|
Containers: []corev1.Container{
|
|
{Name: "app", Image: "appimage"},
|
|
{
|
|
Name: "dbg",
|
|
Image: "dbgimage",
|
|
SecurityContext: &corev1.SecurityContext{
|
|
Capabilities: &corev1.Capabilities{
|
|
Add: []corev1.Capability{"SYS_PTRACE", "NET_ADMIN", "NET_RAW"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "debug by node",
|
|
pod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "pod"},
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{Name: "dbg", Image: "dbgimage"},
|
|
},
|
|
},
|
|
},
|
|
containerName: "dbg",
|
|
target: testNode,
|
|
expectPod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "pod"},
|
|
Spec: corev1.PodSpec{
|
|
HostNetwork: true,
|
|
HostPID: true,
|
|
HostIPC: true,
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "dbg",
|
|
Image: "dbgimage",
|
|
SecurityContext: &corev1.SecurityContext{
|
|
Capabilities: &corev1.Capabilities{
|
|
Add: []corev1.Capability{"NET_ADMIN", "NET_RAW"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "debug by node preserve existing capability",
|
|
pod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "pod"},
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "dbg",
|
|
Image: "dbgimage",
|
|
SecurityContext: &corev1.SecurityContext{
|
|
Capabilities: &corev1.Capabilities{
|
|
Add: []corev1.Capability{"SYS_PTRACE"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
containerName: "dbg",
|
|
target: testNode,
|
|
expectPod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "pod"},
|
|
Spec: corev1.PodSpec{
|
|
HostNetwork: true,
|
|
HostPID: true,
|
|
HostIPC: true,
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "dbg",
|
|
Image: "dbgimage",
|
|
SecurityContext: &corev1.SecurityContext{
|
|
Capabilities: &corev1.Capabilities{
|
|
Add: []corev1.Capability{"SYS_PTRACE", "NET_ADMIN", "NET_RAW"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
applier := &netadminProfile{KeepFlags{InitContainers: true}}
|
|
err := applier.Apply(test.pod, test.containerName, test.target)
|
|
if (err == nil) != (test.expectErr == nil) || (err != nil && test.expectErr != nil && err.Error() != test.expectErr.Error()) {
|
|
t.Fatalf("expect error: %v, got error: %v", test.expectErr, err)
|
|
}
|
|
if err != nil {
|
|
return
|
|
}
|
|
if diff := cmp.Diff(test.expectPod, test.pod); diff != "" {
|
|
t.Error("unexpected diff in generated object: (-want +got):\n", diff)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestSysAdminProfile(t *testing.T) {
|
|
pod := &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "pod"},
|
|
Spec: corev1.PodSpec{EphemeralContainers: []corev1.EphemeralContainer{
|
|
{
|
|
EphemeralContainerCommon: corev1.EphemeralContainerCommon{
|
|
Name: "dbg", Image: "dbgimage",
|
|
},
|
|
},
|
|
}},
|
|
}
|
|
|
|
tests := []struct {
|
|
name string
|
|
pod *corev1.Pod
|
|
containerName string
|
|
target runtime.Object
|
|
expectPod *corev1.Pod
|
|
expectErr error
|
|
}{
|
|
{
|
|
name: "nil target",
|
|
pod: pod,
|
|
containerName: "dbg",
|
|
target: nil,
|
|
expectErr: fmt.Errorf("sysadmin profile: objects of type <nil> are not supported"),
|
|
},
|
|
{
|
|
name: "debug by ephemeral container",
|
|
pod: pod,
|
|
containerName: "dbg",
|
|
target: pod,
|
|
expectPod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "pod"},
|
|
Spec: corev1.PodSpec{EphemeralContainers: []corev1.EphemeralContainer{
|
|
{
|
|
EphemeralContainerCommon: corev1.EphemeralContainerCommon{
|
|
Name: "dbg", Image: "dbgimage",
|
|
SecurityContext: &corev1.SecurityContext{
|
|
Privileged: ptr.To(true),
|
|
},
|
|
},
|
|
},
|
|
}},
|
|
},
|
|
},
|
|
{
|
|
name: "debug by pod copy",
|
|
pod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "podcopy",
|
|
Labels: map[string]string{
|
|
"app": "podcopy",
|
|
},
|
|
Annotations: map[string]string{
|
|
"test": "test",
|
|
},
|
|
},
|
|
Spec: corev1.PodSpec{
|
|
InitContainers: []corev1.Container{{Name: "init-container"}},
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "app",
|
|
Image: "appimage",
|
|
LivenessProbe: &corev1.Probe{},
|
|
ReadinessProbe: &corev1.Probe{},
|
|
StartupProbe: &corev1.Probe{},
|
|
},
|
|
{Name: "dbg", Image: "dbgimage"},
|
|
},
|
|
},
|
|
},
|
|
containerName: "dbg",
|
|
target: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "podcopy",
|
|
Labels: map[string]string{
|
|
"app": "podcopy",
|
|
},
|
|
Annotations: map[string]string{
|
|
"test": "test",
|
|
},
|
|
},
|
|
Spec: corev1.PodSpec{
|
|
InitContainers: []corev1.Container{{Name: "init-container"}},
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "app",
|
|
Image: "appimage",
|
|
LivenessProbe: &corev1.Probe{},
|
|
ReadinessProbe: &corev1.Probe{},
|
|
StartupProbe: &corev1.Probe{},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
expectPod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "podcopy"},
|
|
Spec: corev1.PodSpec{
|
|
InitContainers: []corev1.Container{{Name: "init-container"}},
|
|
Containers: []corev1.Container{
|
|
{Name: "app", Image: "appimage"},
|
|
{
|
|
Name: "dbg",
|
|
Image: "dbgimage",
|
|
SecurityContext: &corev1.SecurityContext{
|
|
Privileged: ptr.To(true),
|
|
},
|
|
},
|
|
},
|
|
ShareProcessNamespace: ptr.To(true),
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "debug by pod copy preserve existing capability",
|
|
pod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "podcopy"},
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "app",
|
|
Image: "appimage",
|
|
LivenessProbe: &corev1.Probe{},
|
|
ReadinessProbe: &corev1.Probe{},
|
|
StartupProbe: &corev1.Probe{},
|
|
},
|
|
{
|
|
Name: "dbg",
|
|
Image: "dbgimage",
|
|
SecurityContext: &corev1.SecurityContext{
|
|
Capabilities: &corev1.Capabilities{
|
|
Add: []corev1.Capability{"SYS_PTRACE"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
containerName: "dbg",
|
|
target: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "podcopy"},
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "app",
|
|
Image: "appimage",
|
|
LivenessProbe: &corev1.Probe{},
|
|
ReadinessProbe: &corev1.Probe{},
|
|
StartupProbe: &corev1.Probe{},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
expectPod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "podcopy"},
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{Name: "app", Image: "appimage"},
|
|
{
|
|
Name: "dbg",
|
|
Image: "dbgimage",
|
|
SecurityContext: &corev1.SecurityContext{
|
|
Privileged: ptr.To(true),
|
|
Capabilities: &corev1.Capabilities{
|
|
Add: []corev1.Capability{"SYS_PTRACE"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ShareProcessNamespace: ptr.To(true),
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "debug by node",
|
|
pod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "pod"},
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{Name: "dbg", Image: "dbgimage"},
|
|
},
|
|
},
|
|
},
|
|
containerName: "dbg",
|
|
target: testNode,
|
|
expectPod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "pod"},
|
|
Spec: corev1.PodSpec{
|
|
HostNetwork: true,
|
|
HostPID: true,
|
|
HostIPC: true,
|
|
Volumes: []corev1.Volume{
|
|
{
|
|
Name: "host-root",
|
|
VolumeSource: corev1.VolumeSource{HostPath: &corev1.HostPathVolumeSource{Path: "/"}},
|
|
},
|
|
},
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "dbg",
|
|
Image: "dbgimage",
|
|
SecurityContext: &corev1.SecurityContext{
|
|
Privileged: ptr.To(true),
|
|
},
|
|
VolumeMounts: []corev1.VolumeMount{{Name: "host-root", MountPath: "/host"}},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "debug by node preserve existing capability",
|
|
pod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "pod"},
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "dbg",
|
|
Image: "dbgimage",
|
|
SecurityContext: &corev1.SecurityContext{
|
|
Capabilities: &corev1.Capabilities{
|
|
Add: []corev1.Capability{"SYS_PTRACE"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
containerName: "dbg",
|
|
target: testNode,
|
|
expectPod: &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "pod"},
|
|
Spec: corev1.PodSpec{
|
|
HostNetwork: true,
|
|
HostPID: true,
|
|
HostIPC: true,
|
|
Volumes: []corev1.Volume{
|
|
{
|
|
Name: "host-root",
|
|
VolumeSource: corev1.VolumeSource{HostPath: &corev1.HostPathVolumeSource{Path: "/"}},
|
|
},
|
|
},
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "dbg",
|
|
Image: "dbgimage",
|
|
SecurityContext: &corev1.SecurityContext{
|
|
Privileged: ptr.To(true),
|
|
Capabilities: &corev1.Capabilities{
|
|
Add: []corev1.Capability{"SYS_PTRACE"},
|
|
},
|
|
},
|
|
VolumeMounts: []corev1.VolumeMount{{Name: "host-root", MountPath: "/host"}},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
applier := &sysadminProfile{KeepFlags{InitContainers: true}}
|
|
err := applier.Apply(test.pod, test.containerName, test.target)
|
|
if (err == nil) != (test.expectErr == nil) || (err != nil && test.expectErr != nil && err.Error() != test.expectErr.Error()) {
|
|
t.Fatalf("expect error: %v, got error: %v", test.expectErr, err)
|
|
}
|
|
if err != nil {
|
|
return
|
|
}
|
|
if diff := cmp.Diff(test.expectPod, test.pod); diff != "" {
|
|
t.Error("unexpected diff in generated object: (-want +got):\n", diff)
|
|
}
|
|
})
|
|
}
|
|
}
|