mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-10-31 13:50:01 +00:00
279 lines
10 KiB
Go
279 lines
10 KiB
Go
/*
|
|
Copyright 2018 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 podsecuritypolicy
|
|
|
|
import (
|
|
"fmt"
|
|
"reflect"
|
|
"testing"
|
|
|
|
"k8s.io/apimachinery/pkg/util/diff"
|
|
utilfeature "k8s.io/apiserver/pkg/util/feature"
|
|
featuregatetesting "k8s.io/component-base/featuregate/testing"
|
|
api "k8s.io/kubernetes/pkg/apis/core"
|
|
"k8s.io/kubernetes/pkg/apis/policy"
|
|
"k8s.io/kubernetes/pkg/features"
|
|
)
|
|
|
|
func TestDropAllowedProcMountTypes(t *testing.T) {
|
|
allowedProcMountTypes := []api.ProcMountType{api.UnmaskedProcMount}
|
|
scWithoutAllowedProcMountTypes := func() *policy.PodSecurityPolicySpec {
|
|
return &policy.PodSecurityPolicySpec{}
|
|
}
|
|
scWithAllowedProcMountTypes := func() *policy.PodSecurityPolicySpec {
|
|
return &policy.PodSecurityPolicySpec{
|
|
AllowedProcMountTypes: allowedProcMountTypes,
|
|
}
|
|
}
|
|
|
|
scInfo := []struct {
|
|
description string
|
|
hasAllowedProcMountTypes bool
|
|
sc func() *policy.PodSecurityPolicySpec
|
|
}{
|
|
{
|
|
description: "PodSecurityPolicySpec Without AllowedProcMountTypes",
|
|
hasAllowedProcMountTypes: false,
|
|
sc: scWithoutAllowedProcMountTypes,
|
|
},
|
|
{
|
|
description: "PodSecurityPolicySpec With AllowedProcMountTypes",
|
|
hasAllowedProcMountTypes: true,
|
|
sc: scWithAllowedProcMountTypes,
|
|
},
|
|
{
|
|
description: "is nil",
|
|
hasAllowedProcMountTypes: false,
|
|
sc: func() *policy.PodSecurityPolicySpec { return nil },
|
|
},
|
|
}
|
|
|
|
for _, enabled := range []bool{true, false} {
|
|
for _, oldPSPSpecInfo := range scInfo {
|
|
for _, newPSPSpecInfo := range scInfo {
|
|
oldPSPSpecHasAllowedProcMountTypes, oldPSPSpec := oldPSPSpecInfo.hasAllowedProcMountTypes, oldPSPSpecInfo.sc()
|
|
newPSPSpecHasAllowedProcMountTypes, newPSPSpec := newPSPSpecInfo.hasAllowedProcMountTypes, newPSPSpecInfo.sc()
|
|
if newPSPSpec == nil {
|
|
continue
|
|
}
|
|
|
|
t.Run(fmt.Sprintf("feature enabled=%v, old PodSecurityPolicySpec %v, new PodSecurityPolicySpec %v", enabled, oldPSPSpecInfo.description, newPSPSpecInfo.description), func(t *testing.T) {
|
|
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ProcMountType, enabled)()
|
|
|
|
DropDisabledFields(newPSPSpec, oldPSPSpec)
|
|
|
|
// old PodSecurityPolicySpec should never be changed
|
|
if !reflect.DeepEqual(oldPSPSpec, oldPSPSpecInfo.sc()) {
|
|
t.Errorf("old PodSecurityPolicySpec changed: %v", diff.ObjectReflectDiff(oldPSPSpec, oldPSPSpecInfo.sc()))
|
|
}
|
|
|
|
switch {
|
|
case enabled || oldPSPSpecHasAllowedProcMountTypes:
|
|
// new PodSecurityPolicySpec should not be changed if the feature is enabled, or if the old PodSecurityPolicySpec had AllowedProcMountTypes
|
|
if !reflect.DeepEqual(newPSPSpec, newPSPSpecInfo.sc()) {
|
|
t.Errorf("new PodSecurityPolicySpec changed: %v", diff.ObjectReflectDiff(newPSPSpec, newPSPSpecInfo.sc()))
|
|
}
|
|
case newPSPSpecHasAllowedProcMountTypes:
|
|
// new PodSecurityPolicySpec should be changed
|
|
if reflect.DeepEqual(newPSPSpec, newPSPSpecInfo.sc()) {
|
|
t.Errorf("new PodSecurityPolicySpec was not changed")
|
|
}
|
|
// new PodSecurityPolicySpec should not have AllowedProcMountTypes
|
|
if !reflect.DeepEqual(newPSPSpec, scWithoutAllowedProcMountTypes()) {
|
|
t.Errorf("new PodSecurityPolicySpec had PodSecurityPolicySpecAllowedProcMountTypes: %v", diff.ObjectReflectDiff(newPSPSpec, scWithoutAllowedProcMountTypes()))
|
|
}
|
|
default:
|
|
// new PodSecurityPolicySpec should not need to be changed
|
|
if !reflect.DeepEqual(newPSPSpec, newPSPSpecInfo.sc()) {
|
|
t.Errorf("new PodSecurityPolicySpec changed: %v", diff.ObjectReflectDiff(newPSPSpec, newPSPSpecInfo.sc()))
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestDropRunAsGroup(t *testing.T) {
|
|
group := func() *policy.RunAsGroupStrategyOptions {
|
|
return &policy.RunAsGroupStrategyOptions{}
|
|
}
|
|
scWithoutRunAsGroup := func() *policy.PodSecurityPolicySpec {
|
|
return &policy.PodSecurityPolicySpec{}
|
|
}
|
|
scWithRunAsGroup := func() *policy.PodSecurityPolicySpec {
|
|
return &policy.PodSecurityPolicySpec{
|
|
RunAsGroup: group(),
|
|
}
|
|
}
|
|
scInfo := []struct {
|
|
description string
|
|
hasRunAsGroup bool
|
|
sc func() *policy.PodSecurityPolicySpec
|
|
}{
|
|
{
|
|
description: "PodSecurityPolicySpec Without RunAsGroup",
|
|
hasRunAsGroup: false,
|
|
sc: scWithoutRunAsGroup,
|
|
},
|
|
{
|
|
description: "PodSecurityPolicySpec With RunAsGroup",
|
|
hasRunAsGroup: true,
|
|
sc: scWithRunAsGroup,
|
|
},
|
|
{
|
|
description: "is nil",
|
|
hasRunAsGroup: false,
|
|
sc: func() *policy.PodSecurityPolicySpec { return nil },
|
|
},
|
|
}
|
|
|
|
for _, enabled := range []bool{true, false} {
|
|
for _, oldPSPSpecInfo := range scInfo {
|
|
for _, newPSPSpecInfo := range scInfo {
|
|
oldPSPSpecHasRunAsGroup, oldPSPSpec := oldPSPSpecInfo.hasRunAsGroup, oldPSPSpecInfo.sc()
|
|
newPSPSpecHasRunAsGroup, newPSPSpec := newPSPSpecInfo.hasRunAsGroup, newPSPSpecInfo.sc()
|
|
if newPSPSpec == nil {
|
|
continue
|
|
}
|
|
|
|
t.Run(fmt.Sprintf("feature enabled=%v, old PodSecurityPolicySpec %v, new PodSecurityPolicySpec %v", enabled, oldPSPSpecInfo.description, newPSPSpecInfo.description), func(t *testing.T) {
|
|
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.RunAsGroup, enabled)()
|
|
|
|
DropDisabledFields(newPSPSpec, oldPSPSpec)
|
|
|
|
// old PodSecurityPolicySpec should never be changed
|
|
if !reflect.DeepEqual(oldPSPSpec, oldPSPSpecInfo.sc()) {
|
|
t.Errorf("old PodSecurityPolicySpec changed: %v", diff.ObjectReflectDiff(oldPSPSpec, oldPSPSpecInfo.sc()))
|
|
}
|
|
|
|
switch {
|
|
case enabled || oldPSPSpecHasRunAsGroup:
|
|
// new PodSecurityPolicySpec should not be changed if the feature is enabled, or if the old PodSecurityPolicySpec had RunAsGroup
|
|
if !reflect.DeepEqual(newPSPSpec, newPSPSpecInfo.sc()) {
|
|
t.Errorf("new PodSecurityPolicySpec changed: %v", diff.ObjectReflectDiff(newPSPSpec, newPSPSpecInfo.sc()))
|
|
}
|
|
case newPSPSpecHasRunAsGroup:
|
|
// new PodSecurityPolicySpec should be changed
|
|
if reflect.DeepEqual(newPSPSpec, newPSPSpecInfo.sc()) {
|
|
t.Errorf("new PodSecurityPolicySpec was not changed")
|
|
}
|
|
// new PodSecurityPolicySpec should not have RunAsGroup
|
|
if !reflect.DeepEqual(newPSPSpec, scWithoutRunAsGroup()) {
|
|
t.Errorf("new PodSecurityPolicySpec had RunAsGroup: %v", diff.ObjectReflectDiff(newPSPSpec, scWithoutRunAsGroup()))
|
|
}
|
|
default:
|
|
// new PodSecurityPolicySpec should not need to be changed
|
|
if !reflect.DeepEqual(newPSPSpec, newPSPSpecInfo.sc()) {
|
|
t.Errorf("new PodSecurityPolicySpec changed: %v", diff.ObjectReflectDiff(newPSPSpec, newPSPSpecInfo.sc()))
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestDropSysctls(t *testing.T) {
|
|
scWithSysctls := func() *policy.PodSecurityPolicySpec {
|
|
return &policy.PodSecurityPolicySpec{
|
|
AllowedUnsafeSysctls: []string{"foo/*"},
|
|
ForbiddenSysctls: []string{"bar.*"},
|
|
}
|
|
}
|
|
scWithOneSysctls := func() *policy.PodSecurityPolicySpec {
|
|
return &policy.PodSecurityPolicySpec{
|
|
AllowedUnsafeSysctls: []string{"foo/*"},
|
|
}
|
|
}
|
|
scWithoutSysctls := func() *policy.PodSecurityPolicySpec {
|
|
return &policy.PodSecurityPolicySpec{}
|
|
}
|
|
|
|
scInfo := []struct {
|
|
description string
|
|
hasSysctls bool
|
|
sc func() *policy.PodSecurityPolicySpec
|
|
}{
|
|
{
|
|
description: "has Sysctls",
|
|
hasSysctls: true,
|
|
sc: scWithSysctls,
|
|
},
|
|
{
|
|
description: "has one Sysctl",
|
|
hasSysctls: true,
|
|
sc: scWithOneSysctls,
|
|
},
|
|
{
|
|
description: "does not have Sysctls",
|
|
hasSysctls: false,
|
|
sc: scWithoutSysctls,
|
|
},
|
|
{
|
|
description: "is nil",
|
|
hasSysctls: false,
|
|
sc: func() *policy.PodSecurityPolicySpec { return nil },
|
|
},
|
|
}
|
|
|
|
for _, enabled := range []bool{true, false} {
|
|
for _, oldPSPSpecInfo := range scInfo {
|
|
for _, newPSPSpecInfo := range scInfo {
|
|
oldPSPSpecHasSysctls, oldPSPSpec := oldPSPSpecInfo.hasSysctls, oldPSPSpecInfo.sc()
|
|
newPSPSpecHasSysctls, newPSPSpec := newPSPSpecInfo.hasSysctls, newPSPSpecInfo.sc()
|
|
if newPSPSpec == nil {
|
|
continue
|
|
}
|
|
|
|
t.Run(fmt.Sprintf("feature enabled=%v, old PodSecurityPolicySpec %v, new PodSecurityPolicySpec %v", enabled, oldPSPSpecInfo.description, newPSPSpecInfo.description), func(t *testing.T) {
|
|
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.Sysctls, enabled)()
|
|
|
|
DropDisabledFields(newPSPSpec, oldPSPSpec)
|
|
|
|
// old PodSecurityPolicySpec should never be changed
|
|
if !reflect.DeepEqual(oldPSPSpec, oldPSPSpecInfo.sc()) {
|
|
t.Errorf("old PodSecurityPolicySpec changed: %v", diff.ObjectReflectDiff(oldPSPSpec, oldPSPSpecInfo.sc()))
|
|
}
|
|
|
|
switch {
|
|
case enabled || oldPSPSpecHasSysctls:
|
|
// new PodSecurityPolicySpec should not be changed if the feature is enabled, or if the old PodSecurityPolicySpec had Sysctls
|
|
if !reflect.DeepEqual(newPSPSpec, newPSPSpecInfo.sc()) {
|
|
t.Errorf("new PodSecurityPolicySpec changed: %v", diff.ObjectReflectDiff(newPSPSpec, newPSPSpecInfo.sc()))
|
|
}
|
|
case newPSPSpecHasSysctls:
|
|
// new PodSecurityPolicySpec should be changed
|
|
if reflect.DeepEqual(newPSPSpec, newPSPSpecInfo.sc()) {
|
|
t.Errorf("new PodSecurityPolicySpec was not changed")
|
|
}
|
|
// new PodSecurityPolicySpec should not have Sysctls
|
|
if !reflect.DeepEqual(newPSPSpec, scWithoutSysctls()) {
|
|
t.Errorf("new PodSecurityPolicySpec had Sysctls: %v", diff.ObjectReflectDiff(newPSPSpec, scWithoutSysctls()))
|
|
}
|
|
default:
|
|
// new PodSecurityPolicySpec should not need to be changed
|
|
if !reflect.DeepEqual(newPSPSpec, newPSPSpecInfo.sc()) {
|
|
t.Errorf("new PodSecurityPolicySpec changed: %v", diff.ObjectReflectDiff(newPSPSpec, newPSPSpecInfo.sc()))
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|
|
}
|
|
}
|