kubernetes/pkg/registry/core/pod/strategy_test.go
Patrick Ohly d64165c803 generic ephemeral volumes: fix and test apiserver feature gate
The implementation should have preserved an existing ephemeral volume
source during an update even when the feature gate is currently
disabled, but due to a cut-and-paste error it was checking for CSI
volumes instead.

The new test detected that. It's based on
https://github.com/kubernetes/kubernetes/pull/97058/files#diff-7826f7adbc1996a05ab52e3f5f02429e94b68ce6bce0dc534d1be636154fded3
2021-03-03 10:13:05 +01:00

1200 lines
34 KiB
Go

/*
Copyright 2014 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 pod
import (
"context"
"fmt"
"net/http"
"net/url"
"reflect"
"testing"
"github.com/stretchr/testify/require"
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
utilfeature "k8s.io/apiserver/pkg/util/feature"
"k8s.io/client-go/tools/cache"
featuregatetesting "k8s.io/component-base/featuregate/testing"
apitesting "k8s.io/kubernetes/pkg/api/testing"
api "k8s.io/kubernetes/pkg/apis/core"
"k8s.io/kubernetes/pkg/features"
"k8s.io/kubernetes/pkg/kubelet/client"
// ensure types are installed
_ "k8s.io/kubernetes/pkg/apis/core/install"
)
func TestMatchPod(t *testing.T) {
testCases := []struct {
in *api.Pod
fieldSelector fields.Selector
expectMatch bool
}{
{
in: &api.Pod{
Spec: api.PodSpec{NodeName: "nodeA"},
},
fieldSelector: fields.ParseSelectorOrDie("spec.nodeName=nodeA"),
expectMatch: true,
},
{
in: &api.Pod{
Spec: api.PodSpec{NodeName: "nodeB"},
},
fieldSelector: fields.ParseSelectorOrDie("spec.nodeName=nodeA"),
expectMatch: false,
},
{
in: &api.Pod{
Spec: api.PodSpec{RestartPolicy: api.RestartPolicyAlways},
},
fieldSelector: fields.ParseSelectorOrDie("spec.restartPolicy=Always"),
expectMatch: true,
},
{
in: &api.Pod{
Spec: api.PodSpec{RestartPolicy: api.RestartPolicyAlways},
},
fieldSelector: fields.ParseSelectorOrDie("spec.restartPolicy=Never"),
expectMatch: false,
},
{
in: &api.Pod{
Spec: api.PodSpec{SchedulerName: "scheduler1"},
},
fieldSelector: fields.ParseSelectorOrDie("spec.schedulerName=scheduler1"),
expectMatch: true,
},
{
in: &api.Pod{
Spec: api.PodSpec{SchedulerName: "scheduler1"},
},
fieldSelector: fields.ParseSelectorOrDie("spec.schedulerName=scheduler2"),
expectMatch: false,
},
{
in: &api.Pod{
Spec: api.PodSpec{ServiceAccountName: "serviceAccount1"},
},
fieldSelector: fields.ParseSelectorOrDie("spec.serviceAccountName=serviceAccount1"),
expectMatch: true,
},
{
in: &api.Pod{
Spec: api.PodSpec{SchedulerName: "serviceAccount1"},
},
fieldSelector: fields.ParseSelectorOrDie("spec.serviceAccountName=serviceAccount2"),
expectMatch: false,
},
{
in: &api.Pod{
Status: api.PodStatus{Phase: api.PodRunning},
},
fieldSelector: fields.ParseSelectorOrDie("status.phase=Running"),
expectMatch: true,
},
{
in: &api.Pod{
Status: api.PodStatus{Phase: api.PodRunning},
},
fieldSelector: fields.ParseSelectorOrDie("status.phase=Pending"),
expectMatch: false,
},
{
in: &api.Pod{
Status: api.PodStatus{
PodIPs: []api.PodIP{
{IP: "1.2.3.4"},
},
},
},
fieldSelector: fields.ParseSelectorOrDie("status.podIP=1.2.3.4"),
expectMatch: true,
},
{
in: &api.Pod{
Status: api.PodStatus{
PodIPs: []api.PodIP{
{IP: "1.2.3.4"},
},
},
},
fieldSelector: fields.ParseSelectorOrDie("status.podIP=4.3.2.1"),
expectMatch: false,
},
{
in: &api.Pod{
Status: api.PodStatus{NominatedNodeName: "node1"},
},
fieldSelector: fields.ParseSelectorOrDie("status.nominatedNodeName=node1"),
expectMatch: true,
},
{
in: &api.Pod{
Status: api.PodStatus{NominatedNodeName: "node1"},
},
fieldSelector: fields.ParseSelectorOrDie("status.nominatedNodeName=node2"),
expectMatch: false,
},
{
in: &api.Pod{
Status: api.PodStatus{
PodIPs: []api.PodIP{
{IP: "2001:db8::"},
},
},
},
fieldSelector: fields.ParseSelectorOrDie("status.podIP=2001:db8::"),
expectMatch: true,
},
{
in: &api.Pod{
Status: api.PodStatus{
PodIPs: []api.PodIP{
{IP: "2001:db8::"},
},
},
},
fieldSelector: fields.ParseSelectorOrDie("status.podIP=2001:db7::"),
expectMatch: false,
},
}
for _, testCase := range testCases {
m := MatchPod(labels.Everything(), testCase.fieldSelector)
result, err := m.Matches(testCase.in)
if err != nil {
t.Errorf("Unexpected error %v", err)
}
if result != testCase.expectMatch {
t.Errorf("Result %v, Expected %v, Selector: %v, Pod: %v", result, testCase.expectMatch, testCase.fieldSelector.String(), testCase.in)
}
}
}
func getResourceList(cpu, memory string) api.ResourceList {
res := api.ResourceList{}
if cpu != "" {
res[api.ResourceCPU] = resource.MustParse(cpu)
}
if memory != "" {
res[api.ResourceMemory] = resource.MustParse(memory)
}
return res
}
func getResourceRequirements(requests, limits api.ResourceList) api.ResourceRequirements {
res := api.ResourceRequirements{}
res.Requests = requests
res.Limits = limits
return res
}
func newContainer(name string, requests api.ResourceList, limits api.ResourceList) api.Container {
return api.Container{
Name: name,
Resources: getResourceRequirements(requests, limits),
}
}
func newPod(name string, containers []api.Container) *api.Pod {
return &api.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: name,
},
Spec: api.PodSpec{
Containers: containers,
},
}
}
func TestGetPodQOS(t *testing.T) {
testCases := []struct {
pod *api.Pod
expected api.PodQOSClass
}{
{
pod: newPod("guaranteed", []api.Container{
newContainer("guaranteed", getResourceList("100m", "100Mi"), getResourceList("100m", "100Mi")),
}),
expected: api.PodQOSGuaranteed,
},
{
pod: newPod("best-effort", []api.Container{
newContainer("best-effort", getResourceList("", ""), getResourceList("", "")),
}),
expected: api.PodQOSBestEffort,
},
{
pod: newPod("burstable", []api.Container{
newContainer("burstable", getResourceList("100m", "100Mi"), getResourceList("", "")),
}),
expected: api.PodQOSBurstable,
},
}
for id, testCase := range testCases {
Strategy.PrepareForCreate(genericapirequest.NewContext(), testCase.pod)
actual := testCase.pod.Status.QOSClass
if actual != testCase.expected {
t.Errorf("[%d]: invalid qos pod %s, expected: %s, actual: %s", id, testCase.pod.Name, testCase.expected, actual)
}
}
}
func TestCheckGracefulDelete(t *testing.T) {
defaultGracePeriod := int64(30)
tcs := []struct {
in *api.Pod
gracePeriod int64
}{
{
in: &api.Pod{
Spec: api.PodSpec{NodeName: "something"},
Status: api.PodStatus{Phase: api.PodPending},
},
gracePeriod: defaultGracePeriod,
},
{
in: &api.Pod{
Spec: api.PodSpec{NodeName: "something"},
Status: api.PodStatus{Phase: api.PodFailed},
},
gracePeriod: 0,
},
{
in: &api.Pod{
Spec: api.PodSpec{},
Status: api.PodStatus{Phase: api.PodPending},
},
gracePeriod: 0,
},
{
in: &api.Pod{
Spec: api.PodSpec{},
Status: api.PodStatus{Phase: api.PodSucceeded},
},
gracePeriod: 0,
},
{
in: &api.Pod{
Spec: api.PodSpec{},
Status: api.PodStatus{},
},
gracePeriod: 0,
},
}
for _, tc := range tcs {
out := &metav1.DeleteOptions{GracePeriodSeconds: &defaultGracePeriod}
Strategy.CheckGracefulDelete(genericapirequest.NewContext(), tc.in, out)
if out.GracePeriodSeconds == nil {
t.Errorf("out grace period was nil but supposed to be %v", tc.gracePeriod)
}
if *(out.GracePeriodSeconds) != tc.gracePeriod {
t.Errorf("out grace period was %v but was expected to be %v", *out, tc.gracePeriod)
}
}
}
type mockPodGetter struct {
pod *api.Pod
}
func (g mockPodGetter) Get(context.Context, string, *metav1.GetOptions) (runtime.Object, error) {
return g.pod, nil
}
func TestCheckLogLocation(t *testing.T) {
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.EphemeralContainers, true)()
ctx := genericapirequest.NewDefaultContext()
fakePodName := "test"
tcs := []struct {
name string
in *api.Pod
opts *api.PodLogOptions
expectedErr error
expectedTransport http.RoundTripper
}{
{
name: "simple",
in: &api.Pod{
ObjectMeta: metav1.ObjectMeta{Name: fakePodName},
Spec: api.PodSpec{
Containers: []api.Container{
{Name: "mycontainer"},
},
NodeName: "foo",
},
Status: api.PodStatus{},
},
opts: &api.PodLogOptions{},
expectedErr: nil,
expectedTransport: fakeSecureRoundTripper,
},
{
name: "insecure",
in: &api.Pod{
ObjectMeta: metav1.ObjectMeta{Name: fakePodName},
Spec: api.PodSpec{
Containers: []api.Container{
{Name: "mycontainer"},
},
NodeName: "foo",
},
Status: api.PodStatus{},
},
opts: &api.PodLogOptions{
InsecureSkipTLSVerifyBackend: true,
},
expectedErr: nil,
expectedTransport: fakeInsecureRoundTripper,
},
{
name: "missing container",
in: &api.Pod{
ObjectMeta: metav1.ObjectMeta{Name: fakePodName},
Spec: api.PodSpec{},
Status: api.PodStatus{},
},
opts: &api.PodLogOptions{},
expectedErr: errors.NewBadRequest("a container name must be specified for pod test"),
expectedTransport: nil,
},
{
name: "choice of two containers",
in: &api.Pod{
ObjectMeta: metav1.ObjectMeta{Name: fakePodName},
Spec: api.PodSpec{
Containers: []api.Container{
{Name: "container1"},
{Name: "container2"},
},
},
Status: api.PodStatus{},
},
opts: &api.PodLogOptions{},
expectedErr: errors.NewBadRequest("a container name must be specified for pod test, choose one of: [container1 container2]"),
expectedTransport: nil,
},
{
name: "initcontainers",
in: &api.Pod{
ObjectMeta: metav1.ObjectMeta{Name: fakePodName},
Spec: api.PodSpec{
Containers: []api.Container{
{Name: "container1"},
{Name: "container2"},
},
InitContainers: []api.Container{
{Name: "initcontainer1"},
},
},
Status: api.PodStatus{},
},
opts: &api.PodLogOptions{},
expectedErr: errors.NewBadRequest("a container name must be specified for pod test, choose one of: [initcontainer1 container1 container2]"),
expectedTransport: nil,
},
{
in: &api.Pod{
ObjectMeta: metav1.ObjectMeta{Name: fakePodName},
Spec: api.PodSpec{
Containers: []api.Container{
{Name: "container1"},
{Name: "container2"},
},
InitContainers: []api.Container{
{Name: "initcontainer1"},
},
EphemeralContainers: []api.EphemeralContainer{
{EphemeralContainerCommon: api.EphemeralContainerCommon{Name: "debugger"}},
},
},
Status: api.PodStatus{},
},
opts: &api.PodLogOptions{},
expectedErr: errors.NewBadRequest("a container name must be specified for pod test, choose one of: [initcontainer1 container1 container2 debugger]"),
expectedTransport: nil,
},
{
name: "bad container",
in: &api.Pod{
ObjectMeta: metav1.ObjectMeta{Name: fakePodName},
Spec: api.PodSpec{
Containers: []api.Container{
{Name: "container1"},
{Name: "container2"},
},
},
Status: api.PodStatus{},
},
opts: &api.PodLogOptions{
Container: "unknown",
},
expectedErr: errors.NewBadRequest("container unknown is not valid for pod test"),
expectedTransport: nil,
},
{
name: "good with two containers",
in: &api.Pod{
ObjectMeta: metav1.ObjectMeta{Name: fakePodName},
Spec: api.PodSpec{
Containers: []api.Container{
{Name: "container1"},
{Name: "container2"},
},
NodeName: "foo",
},
Status: api.PodStatus{},
},
opts: &api.PodLogOptions{
Container: "container2",
},
expectedErr: nil,
expectedTransport: fakeSecureRoundTripper,
},
}
for _, tc := range tcs {
t.Run(tc.name, func(t *testing.T) {
getter := &mockPodGetter{tc.in}
connectionGetter := &mockConnectionInfoGetter{&client.ConnectionInfo{
Transport: fakeSecureRoundTripper,
InsecureSkipTLSVerifyTransport: fakeInsecureRoundTripper,
}}
_, actualTransport, err := LogLocation(ctx, getter, connectionGetter, fakePodName, tc.opts)
if !reflect.DeepEqual(err, tc.expectedErr) {
t.Errorf("expected %q, got %q", tc.expectedErr, err)
}
if actualTransport != tc.expectedTransport {
t.Errorf("expected %q, got %q", tc.expectedTransport, actualTransport)
}
})
}
}
func TestSelectableFieldLabelConversions(t *testing.T) {
apitesting.TestSelectableFieldLabelConversionsOfKind(t,
"v1",
"Pod",
ToSelectableFields(&api.Pod{}),
nil,
)
}
type mockConnectionInfoGetter struct {
info *client.ConnectionInfo
}
func (g mockConnectionInfoGetter) GetConnectionInfo(ctx context.Context, nodeName types.NodeName) (*client.ConnectionInfo, error) {
return g.info, nil
}
func TestPortForwardLocation(t *testing.T) {
ctx := genericapirequest.NewDefaultContext()
tcs := []struct {
in *api.Pod
info *client.ConnectionInfo
opts *api.PodPortForwardOptions
expectedErr error
expectedURL *url.URL
}{
{
in: &api.Pod{
Spec: api.PodSpec{},
},
opts: &api.PodPortForwardOptions{},
expectedErr: errors.NewBadRequest("pod test does not have a host assigned"),
},
{
in: &api.Pod{
ObjectMeta: metav1.ObjectMeta{
Namespace: "ns",
Name: "pod1",
},
Spec: api.PodSpec{
NodeName: "node1",
},
},
info: &client.ConnectionInfo{},
opts: &api.PodPortForwardOptions{},
expectedURL: &url.URL{Host: ":", Path: "/portForward/ns/pod1"},
},
{
in: &api.Pod{
ObjectMeta: metav1.ObjectMeta{
Namespace: "ns",
Name: "pod1",
},
Spec: api.PodSpec{
NodeName: "node1",
},
},
info: &client.ConnectionInfo{},
opts: &api.PodPortForwardOptions{Ports: []int32{80}},
expectedURL: &url.URL{Host: ":", Path: "/portForward/ns/pod1", RawQuery: "port=80"},
},
}
for _, tc := range tcs {
getter := &mockPodGetter{tc.in}
connectionGetter := &mockConnectionInfoGetter{tc.info}
loc, _, err := PortForwardLocation(ctx, getter, connectionGetter, "test", tc.opts)
if !reflect.DeepEqual(err, tc.expectedErr) {
t.Errorf("expected %v, got %v", tc.expectedErr, err)
}
if !reflect.DeepEqual(loc, tc.expectedURL) {
t.Errorf("expected %v, got %v", tc.expectedURL, loc)
}
}
}
func TestGetPodIP(t *testing.T) {
testCases := []struct {
name string
pod *api.Pod
expectedIP string
}{
{
name: "nil pod",
pod: nil,
expectedIP: "",
},
{
name: "no status object",
pod: &api.Pod{
ObjectMeta: metav1.ObjectMeta{Namespace: "ns", Name: "pod1"},
Spec: api.PodSpec{},
},
expectedIP: "",
},
{
name: "no pod ips",
pod: &api.Pod{
ObjectMeta: metav1.ObjectMeta{Namespace: "ns", Name: "pod1"},
Spec: api.PodSpec{},
Status: api.PodStatus{},
},
expectedIP: "",
},
{
name: "empty list",
pod: &api.Pod{
ObjectMeta: metav1.ObjectMeta{Namespace: "ns", Name: "pod1"},
Spec: api.PodSpec{},
Status: api.PodStatus{
PodIPs: []api.PodIP{},
},
},
expectedIP: "",
},
{
name: "1 ip",
pod: &api.Pod{
ObjectMeta: metav1.ObjectMeta{Namespace: "ns", Name: "pod1"},
Spec: api.PodSpec{},
Status: api.PodStatus{
PodIPs: []api.PodIP{
{IP: "10.0.0.10"},
},
},
},
expectedIP: "10.0.0.10",
},
{
name: "multiple ips",
pod: &api.Pod{
ObjectMeta: metav1.ObjectMeta{Namespace: "ns", Name: "pod1"},
Spec: api.PodSpec{},
Status: api.PodStatus{
PodIPs: []api.PodIP{
{IP: "10.0.0.10"},
{IP: "10.0.0.20"},
},
},
},
expectedIP: "10.0.0.10",
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
podIP := getPodIP(tc.pod)
if podIP != tc.expectedIP {
t.Errorf("expected pod ip:%v does not match actual %v", tc.expectedIP, podIP)
}
})
}
}
type fakeTransport struct {
val string
}
func (f fakeTransport) RoundTrip(*http.Request) (*http.Response, error) {
return nil, nil
}
var (
fakeSecureRoundTripper = fakeTransport{val: "secure"}
fakeInsecureRoundTripper = fakeTransport{val: "insecure"}
)
func TestPodIndexFunc(t *testing.T) {
tcs := []struct {
name string
indexFunc cache.IndexFunc
pod interface{}
expectedValue string
expectedErr error
}{
{
name: "node name index",
indexFunc: NodeNameIndexFunc,
pod: &api.Pod{
Spec: api.PodSpec{
NodeName: "test-pod",
},
},
expectedValue: "test-pod",
expectedErr: nil,
},
{
name: "not a pod failed",
indexFunc: NodeNameIndexFunc,
pod: "not a pod object",
expectedValue: "test-pod",
expectedErr: fmt.Errorf("not a pod"),
},
}
for _, tc := range tcs {
indexValues, err := tc.indexFunc(tc.pod)
if !reflect.DeepEqual(err, tc.expectedErr) {
t.Errorf("name %v, expected %v, got %v", tc.name, tc.expectedErr, err)
}
if err == nil && len(indexValues) != 1 && indexValues[0] != tc.expectedValue {
t.Errorf("name %v, expected %v, got %v", tc.name, tc.expectedValue, indexValues)
}
}
}
func TestApplySeccompVersionSkew(t *testing.T) {
const containerName = "container"
testProfile := "test"
for _, test := range []struct {
description string
pod *api.Pod
validation func(*testing.T, *api.Pod)
}{
{
description: "Security context nil",
pod: &api.Pod{},
validation: func(t *testing.T, pod *api.Pod) {
require.NotNil(t, pod)
},
},
{
description: "Security context not nil",
pod: &api.Pod{
Spec: api.PodSpec{SecurityContext: &api.PodSecurityContext{}},
},
validation: func(t *testing.T, pod *api.Pod) {
require.NotNil(t, pod)
},
},
{
description: "Field type unconfined and no annotation present",
pod: &api.Pod{
Spec: api.PodSpec{
SecurityContext: &api.PodSecurityContext{
SeccompProfile: &api.SeccompProfile{
Type: api.SeccompProfileTypeUnconfined,
},
},
},
},
validation: func(t *testing.T, pod *api.Pod) {
require.Len(t, pod.Annotations, 1)
require.Equal(t, v1.SeccompProfileNameUnconfined, pod.Annotations[api.SeccompPodAnnotationKey])
},
},
{
description: "Field type default and no annotation present",
pod: &api.Pod{
Spec: api.PodSpec{
SecurityContext: &api.PodSecurityContext{
SeccompProfile: &api.SeccompProfile{
Type: api.SeccompProfileTypeRuntimeDefault,
},
},
},
},
validation: func(t *testing.T, pod *api.Pod) {
require.Len(t, pod.Annotations, 1)
require.Equal(t, v1.SeccompProfileRuntimeDefault, pod.Annotations[v1.SeccompPodAnnotationKey])
},
},
{
description: "Field type localhost and no annotation present",
pod: &api.Pod{
Spec: api.PodSpec{
SecurityContext: &api.PodSecurityContext{
SeccompProfile: &api.SeccompProfile{
Type: api.SeccompProfileTypeLocalhost,
LocalhostProfile: &testProfile,
},
},
},
},
validation: func(t *testing.T, pod *api.Pod) {
require.Len(t, pod.Annotations, 1)
require.Equal(t, "localhost/test", pod.Annotations[v1.SeccompPodAnnotationKey])
},
},
{
description: "Field type localhost but profile is nil",
pod: &api.Pod{
Spec: api.PodSpec{
SecurityContext: &api.PodSecurityContext{
SeccompProfile: &api.SeccompProfile{
Type: api.SeccompProfileTypeLocalhost,
},
},
},
},
validation: func(t *testing.T, pod *api.Pod) {
require.Len(t, pod.Annotations, 0)
},
},
{
description: "Annotation 'unconfined' and no field present",
pod: &api.Pod{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
v1.SeccompPodAnnotationKey: v1.SeccompProfileNameUnconfined,
},
},
Spec: api.PodSpec{},
},
validation: func(t *testing.T, pod *api.Pod) {
require.Equal(t, api.SeccompProfileTypeUnconfined, pod.Spec.SecurityContext.SeccompProfile.Type)
require.Nil(t, pod.Spec.SecurityContext.SeccompProfile.LocalhostProfile)
},
},
{
description: "Annotation 'runtime/default' and no field present",
pod: &api.Pod{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
v1.SeccompPodAnnotationKey: v1.SeccompProfileRuntimeDefault,
},
},
Spec: api.PodSpec{SecurityContext: &api.PodSecurityContext{}},
},
validation: func(t *testing.T, pod *api.Pod) {
require.Equal(t, api.SeccompProfileTypeRuntimeDefault, pod.Spec.SecurityContext.SeccompProfile.Type)
require.Nil(t, pod.Spec.SecurityContext.SeccompProfile.LocalhostProfile)
},
},
{
description: "Annotation 'docker/default' and no field present",
pod: &api.Pod{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
v1.SeccompPodAnnotationKey: v1.DeprecatedSeccompProfileDockerDefault,
},
},
Spec: api.PodSpec{SecurityContext: &api.PodSecurityContext{}},
},
validation: func(t *testing.T, pod *api.Pod) {
require.Equal(t, api.SeccompProfileTypeRuntimeDefault, pod.Spec.SecurityContext.SeccompProfile.Type)
require.Nil(t, pod.Spec.SecurityContext.SeccompProfile.LocalhostProfile)
},
},
{
description: "Annotation 'localhost/test' and no field present",
pod: &api.Pod{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
v1.SeccompPodAnnotationKey: v1.SeccompLocalhostProfileNamePrefix + testProfile,
},
},
Spec: api.PodSpec{SecurityContext: &api.PodSecurityContext{}},
},
validation: func(t *testing.T, pod *api.Pod) {
require.Equal(t, api.SeccompProfileTypeLocalhost, pod.Spec.SecurityContext.SeccompProfile.Type)
require.Equal(t, testProfile, *pod.Spec.SecurityContext.SeccompProfile.LocalhostProfile)
},
},
{
description: "Annotation 'localhost/' has zero length",
pod: &api.Pod{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
v1.SeccompPodAnnotationKey: v1.SeccompLocalhostProfileNamePrefix,
},
},
Spec: api.PodSpec{SecurityContext: &api.PodSecurityContext{}},
},
validation: func(t *testing.T, pod *api.Pod) {
require.Nil(t, pod.Spec.SecurityContext.SeccompProfile)
},
},
{
description: "Security context nil (container)",
pod: &api.Pod{
Spec: api.PodSpec{
Containers: []api.Container{{}},
},
},
validation: func(t *testing.T, pod *api.Pod) {
require.NotNil(t, pod)
},
},
{
description: "Security context not nil (container)",
pod: &api.Pod{
Spec: api.PodSpec{
Containers: []api.Container{{
SecurityContext: &api.SecurityContext{},
}},
},
},
validation: func(t *testing.T, pod *api.Pod) {
require.NotNil(t, pod)
},
},
{
description: "Field type unconfined and no annotation present (container)",
pod: &api.Pod{
Spec: api.PodSpec{
Containers: []api.Container{
{
Name: containerName,
SecurityContext: &api.SecurityContext{
SeccompProfile: &api.SeccompProfile{
Type: api.SeccompProfileTypeUnconfined,
},
},
},
},
},
},
validation: func(t *testing.T, pod *api.Pod) {
require.Len(t, pod.Annotations, 1)
require.Equal(t, v1.SeccompProfileNameUnconfined, pod.Annotations[v1.SeccompContainerAnnotationKeyPrefix+containerName])
},
},
{
description: "Field type runtime/default and no annotation present (container)",
pod: &api.Pod{
Spec: api.PodSpec{
Containers: []api.Container{
{
Name: containerName,
SecurityContext: &api.SecurityContext{
SeccompProfile: &api.SeccompProfile{
Type: api.SeccompProfileTypeRuntimeDefault,
},
},
},
},
},
},
validation: func(t *testing.T, pod *api.Pod) {
require.Len(t, pod.Annotations, 1)
require.Equal(t, v1.SeccompProfileRuntimeDefault, pod.Annotations[v1.SeccompContainerAnnotationKeyPrefix+containerName])
},
},
{
description: "Field type localhost and no annotation present (container)",
pod: &api.Pod{
Spec: api.PodSpec{
Containers: []api.Container{
{
Name: containerName,
SecurityContext: &api.SecurityContext{
SeccompProfile: &api.SeccompProfile{
Type: api.SeccompProfileTypeLocalhost,
LocalhostProfile: &testProfile,
},
},
},
},
},
},
validation: func(t *testing.T, pod *api.Pod) {
require.Len(t, pod.Annotations, 1)
require.Equal(t, "localhost/test", pod.Annotations[v1.SeccompContainerAnnotationKeyPrefix+containerName])
},
},
{
description: "Multiple containers with fields (container)",
pod: &api.Pod{
Spec: api.PodSpec{
Containers: []api.Container{
{
Name: containerName + "1",
SecurityContext: &api.SecurityContext{
SeccompProfile: &api.SeccompProfile{
Type: api.SeccompProfileTypeUnconfined,
},
},
},
{
Name: containerName + "2",
},
{
Name: containerName + "3",
SecurityContext: &api.SecurityContext{
SeccompProfile: &api.SeccompProfile{
Type: api.SeccompProfileTypeRuntimeDefault,
},
},
},
},
},
},
validation: func(t *testing.T, pod *api.Pod) {
require.Len(t, pod.Annotations, 2)
require.Equal(t, v1.SeccompProfileNameUnconfined, pod.Annotations[v1.SeccompContainerAnnotationKeyPrefix+containerName+"1"])
require.Equal(t, v1.SeccompProfileRuntimeDefault, pod.Annotations[v1.SeccompContainerAnnotationKeyPrefix+containerName+"3"])
},
},
{
description: "Annotation 'unconfined' and no field present (container)",
pod: &api.Pod{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
v1.SeccompContainerAnnotationKeyPrefix + containerName: v1.SeccompProfileNameUnconfined,
},
},
Spec: api.PodSpec{
Containers: []api.Container{{
Name: containerName,
}},
},
},
validation: func(t *testing.T, pod *api.Pod) {
require.Equal(t, api.SeccompProfileTypeUnconfined, pod.Spec.Containers[0].SecurityContext.SeccompProfile.Type)
require.Nil(t, pod.Spec.Containers[0].SecurityContext.SeccompProfile.LocalhostProfile)
},
},
{
description: "Annotation 'runtime/default' and no field present (container)",
pod: &api.Pod{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
v1.SeccompContainerAnnotationKeyPrefix + containerName: v1.SeccompProfileRuntimeDefault,
},
},
Spec: api.PodSpec{
Containers: []api.Container{{
Name: containerName,
SecurityContext: &api.SecurityContext{},
}},
},
},
validation: func(t *testing.T, pod *api.Pod) {
require.Equal(t, api.SeccompProfileTypeRuntimeDefault, pod.Spec.Containers[0].SecurityContext.SeccompProfile.Type)
require.Nil(t, pod.Spec.Containers[0].SecurityContext.SeccompProfile.LocalhostProfile)
},
},
{
description: "Annotation 'docker/default' and no field present (container)",
pod: &api.Pod{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
v1.SeccompContainerAnnotationKeyPrefix + containerName: v1.DeprecatedSeccompProfileDockerDefault,
},
},
Spec: api.PodSpec{
Containers: []api.Container{{
Name: containerName,
SecurityContext: &api.SecurityContext{},
}},
},
},
validation: func(t *testing.T, pod *api.Pod) {
require.Equal(t, api.SeccompProfileTypeRuntimeDefault, pod.Spec.Containers[0].SecurityContext.SeccompProfile.Type)
require.Nil(t, pod.Spec.Containers[0].SecurityContext.SeccompProfile.LocalhostProfile)
},
},
{
description: "Multiple containers by annotations (container)",
pod: &api.Pod{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
v1.SeccompContainerAnnotationKeyPrefix + containerName + "1": v1.SeccompLocalhostProfileNamePrefix + testProfile,
v1.SeccompContainerAnnotationKeyPrefix + containerName + "3": v1.SeccompProfileRuntimeDefault,
},
},
Spec: api.PodSpec{
Containers: []api.Container{
{Name: containerName + "1"},
{Name: containerName + "2"},
{Name: containerName + "3"},
},
},
},
validation: func(t *testing.T, pod *api.Pod) {
require.Equal(t, api.SeccompProfileTypeLocalhost, pod.Spec.Containers[0].SecurityContext.SeccompProfile.Type)
require.Equal(t, testProfile, *pod.Spec.Containers[0].SecurityContext.SeccompProfile.LocalhostProfile)
require.Equal(t, api.SeccompProfileTypeRuntimeDefault, pod.Spec.Containers[2].SecurityContext.SeccompProfile.Type)
},
},
{
description: "Annotation 'localhost/test' and no field present (container)",
pod: &api.Pod{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
v1.SeccompContainerAnnotationKeyPrefix + containerName: v1.SeccompLocalhostProfileNamePrefix + testProfile,
},
},
Spec: api.PodSpec{
Containers: []api.Container{{
Name: containerName,
SecurityContext: &api.SecurityContext{},
}},
},
},
validation: func(t *testing.T, pod *api.Pod) {
require.Equal(t, api.SeccompProfileTypeLocalhost, pod.Spec.Containers[0].SecurityContext.SeccompProfile.Type)
require.Equal(t, testProfile, *pod.Spec.Containers[0].SecurityContext.SeccompProfile.LocalhostProfile)
},
},
} {
output := &api.Pod{
ObjectMeta: metav1.ObjectMeta{Annotations: map[string]string{}},
}
for i, ctr := range test.pod.Spec.Containers {
output.Spec.Containers = append(output.Spec.Containers, api.Container{})
if ctr.SecurityContext != nil && ctr.SecurityContext.SeccompProfile != nil {
output.Spec.Containers[i].SecurityContext = &api.SecurityContext{
SeccompProfile: &api.SeccompProfile{
Type: api.SeccompProfileType(ctr.SecurityContext.SeccompProfile.Type),
LocalhostProfile: ctr.SecurityContext.SeccompProfile.LocalhostProfile,
},
}
}
}
applySeccompVersionSkew(test.pod)
test.validation(t, test.pod)
}
}
// TestEphemeralVolumeEnablement checks the behavior of the API server
// when the GenericEphemeralVolume feature is turned on and then off:
// the Ephemeral struct must be preserved even during updates.
func TestEphemeralVolumeEnablement(t *testing.T) {
// Enable the Feature Gate during the first pod creation
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.GenericEphemeralVolume, true)()
pod := createPodWithGenericEphemeralVolume()
expectedPod := pod.DeepCopy()
Strategy.PrepareForCreate(context.Background(), pod)
require.Equal(t, expectedPod.Spec, pod.Spec, "pod spec")
errs := Strategy.Validate(context.Background(), pod)
require.Empty(t, errs, "errors from validation")
// Now let's disable the Feature Gate, update some other field from the Pod and expect the volume to remain present
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.GenericEphemeralVolume, false)()
updatePod := testUpdatePod(t, pod, "aaa")
// And let's enable the FG again, add another from and check if the volume is still present
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.GenericEphemeralVolume, true)()
testUpdatePod(t, updatePod, "bbb")
}
// TestEphemeralVolumeDisabled checks the behavior of the API server
// when the GenericEphemeralVolume is off: the Ephemeral struct gets dropped,
// validation fails.
func TestEphemeralVolumeDisabled(t *testing.T) {
// Disable the Feature Gate during the first pod creation
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.GenericEphemeralVolume, false)()
pod := createPodWithGenericEphemeralVolume()
expectedPod := pod.DeepCopy()
expectedPod.Spec.Volumes[0].VolumeSource.Ephemeral = nil
Strategy.PrepareForCreate(context.Background(), pod)
require.Equal(t, expectedPod.Spec, pod.Spec, "pod spec")
errs := Strategy.Validate(context.Background(), pod)
require.NotEmpty(t, errs, "no errors from validation")
}
func testUpdatePod(t *testing.T, oldPod *api.Pod, labelValue string) *api.Pod {
updatedPod := oldPod.DeepCopy()
updatedPod.Labels = map[string]string{"XYZ": labelValue}
expectedPod := updatedPod.DeepCopy()
Strategy.PrepareForUpdate(context.Background(), updatedPod, oldPod)
require.Equal(t, expectedPod.Spec, updatedPod.Spec, "updated pod spec")
errs := Strategy.Validate(context.Background(), updatedPod)
require.Empty(t, errs, "errors from validation")
return updatedPod
}
func createPodWithGenericEphemeralVolume() *api.Pod {
return &api.Pod{
ObjectMeta: metav1.ObjectMeta{
Namespace: "ns",
Name: "pod",
},
Spec: api.PodSpec{
RestartPolicy: api.RestartPolicyAlways,
DNSPolicy: api.DNSClusterFirst,
Containers: []api.Container{{
Name: "foo",
Image: "example",
TerminationMessagePolicy: api.TerminationMessageReadFile,
ImagePullPolicy: api.PullAlways,
}},
Volumes: []api.Volume{
{
Name: "ephemeral",
VolumeSource: api.VolumeSource{
Ephemeral: &api.EphemeralVolumeSource{
VolumeClaimTemplate: &api.PersistentVolumeClaimTemplate{
Spec: api.PersistentVolumeClaimSpec{
AccessModes: []api.PersistentVolumeAccessMode{
api.ReadWriteOnce,
},
Resources: api.ResourceRequirements{
Requests: api.ResourceList{
api.ResourceStorage: resource.MustParse("1Gi"),
},
},
},
},
},
},
},
},
},
}
}