k8s.io/kubernetes@v1.29.3/pkg/security/apparmor/validate_test.go (about)

     1  /*
     2  Copyright 2016 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package apparmor
    18  
    19  import (
    20  	"errors"
    21  	"fmt"
    22  	"testing"
    23  
    24  	v1 "k8s.io/api/core/v1"
    25  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    26  
    27  	"github.com/stretchr/testify/assert"
    28  )
    29  
    30  func TestValidateBadHost(t *testing.T) {
    31  	hostErr := errors.New("expected host error")
    32  	v := &validator{
    33  		validateHostErr: hostErr,
    34  	}
    35  
    36  	tests := []struct {
    37  		profile     string
    38  		expectValid bool
    39  	}{
    40  		{"", true},
    41  		{v1.AppArmorBetaProfileRuntimeDefault, false},
    42  		{v1.AppArmorBetaProfileNamePrefix + "docker-default", false},
    43  	}
    44  
    45  	for _, test := range tests {
    46  		err := v.Validate(getPodWithProfile(test.profile))
    47  		if test.expectValid {
    48  			assert.NoError(t, err, "Pod with profile %q should be valid", test.profile)
    49  		} else {
    50  			assert.Equal(t, hostErr, err, "Pod with profile %q should trigger a host validation error", test.profile)
    51  		}
    52  	}
    53  }
    54  
    55  func TestValidateValidHost(t *testing.T) {
    56  	v := &validator{}
    57  
    58  	tests := []struct {
    59  		profile     string
    60  		expectValid bool
    61  	}{
    62  		{"", true},
    63  		{v1.AppArmorBetaProfileRuntimeDefault, true},
    64  		{v1.AppArmorBetaProfileNamePrefix + "docker-default", true},
    65  		{v1.AppArmorBetaProfileNamePrefix + "foo-container", true},
    66  		{v1.AppArmorBetaProfileNamePrefix + "/usr/sbin/ntpd", true},
    67  		{"docker-default", false},
    68  		{v1.AppArmorBetaProfileNamePrefix + "", false}, // Empty profile explicitly forbidden.
    69  		{v1.AppArmorBetaProfileNamePrefix + " ", false},
    70  	}
    71  
    72  	for _, test := range tests {
    73  		err := v.Validate(getPodWithProfile(test.profile))
    74  		if test.expectValid {
    75  			assert.NoError(t, err, "Pod with profile %q should be valid", test.profile)
    76  		} else {
    77  			assert.Error(t, err, fmt.Sprintf("Pod with profile %q should trigger a validation error", test.profile))
    78  		}
    79  	}
    80  
    81  	// Test multi-container pod.
    82  	pod := &v1.Pod{
    83  		ObjectMeta: metav1.ObjectMeta{
    84  			Annotations: map[string]string{
    85  				v1.AppArmorBetaContainerAnnotationKeyPrefix + "init":  v1.AppArmorBetaProfileNamePrefix + "foo-container",
    86  				v1.AppArmorBetaContainerAnnotationKeyPrefix + "test1": v1.AppArmorBetaProfileRuntimeDefault,
    87  				v1.AppArmorBetaContainerAnnotationKeyPrefix + "test2": v1.AppArmorBetaProfileNamePrefix + "docker-default",
    88  			},
    89  		},
    90  		Spec: v1.PodSpec{
    91  			InitContainers: []v1.Container{
    92  				{Name: "init"},
    93  			},
    94  			Containers: []v1.Container{
    95  				{Name: "test1"},
    96  				{Name: "test2"},
    97  				{Name: "no-profile"},
    98  			},
    99  		},
   100  	}
   101  	assert.NoError(t, v.Validate(pod), "Multi-container pod should validate")
   102  }
   103  
   104  func getPodWithProfile(profile string) *v1.Pod {
   105  	annotations := map[string]string{
   106  		v1.AppArmorBetaContainerAnnotationKeyPrefix + "test": profile,
   107  	}
   108  	if profile == "" {
   109  		annotations = map[string]string{
   110  			"foo": "bar",
   111  		}
   112  	}
   113  	return &v1.Pod{
   114  		ObjectMeta: metav1.ObjectMeta{
   115  			Annotations: annotations,
   116  		},
   117  		Spec: v1.PodSpec{
   118  			Containers: []v1.Container{
   119  				{
   120  					Name: "test",
   121  				},
   122  			},
   123  		},
   124  	}
   125  }