239 lines
7.9 KiB
Go
239 lines
7.9 KiB
Go
/*
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Copyright 2016 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 dockershim
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"k8s.io/kubernetes/pkg/api/v1"
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runtimeapi "k8s.io/kubernetes/pkg/kubelet/api/v1alpha1/runtime"
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"k8s.io/kubernetes/pkg/security/apparmor"
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)
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func TestLabelsAndAnnotationsRoundTrip(t *testing.T) {
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expectedLabels := map[string]string{"foo.123.abc": "baz", "bar.456.xyz": "qwe"}
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expectedAnnotations := map[string]string{"uio.ert": "dfs", "jkl": "asd"}
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// Merge labels and annotations into docker labels.
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dockerLabels := makeLabels(expectedLabels, expectedAnnotations)
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// Extract labels and annotations from docker labels.
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actualLabels, actualAnnotations := extractLabels(dockerLabels)
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assert.Equal(t, expectedLabels, actualLabels)
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assert.Equal(t, expectedAnnotations, actualAnnotations)
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}
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// TestGetContainerSecurityOpts tests the logic of generating container security options from sandbox annotations.
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// The actual profile loading logic is tested in dockertools.
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// TODO: Migrate the corresponding test to dockershim.
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func TestGetContainerSecurityOpts(t *testing.T) {
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containerName := "bar"
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makeConfig := func(annotations map[string]string) *runtimeapi.PodSandboxConfig {
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return makeSandboxConfigWithLabelsAndAnnotations("pod", "ns", "1234", 1, nil, annotations)
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}
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tests := []struct {
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msg string
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config *runtimeapi.PodSandboxConfig
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expectedOpts []string
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}{{
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msg: "No security annotations",
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config: makeConfig(nil),
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expectedOpts: []string{"seccomp=unconfined"},
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}, {
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msg: "Seccomp unconfined",
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config: makeConfig(map[string]string{
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v1.SeccompContainerAnnotationKeyPrefix + containerName: "unconfined",
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}),
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expectedOpts: []string{"seccomp=unconfined"},
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}, {
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msg: "Seccomp default",
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config: makeConfig(map[string]string{
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v1.SeccompContainerAnnotationKeyPrefix + containerName: "docker/default",
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}),
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expectedOpts: nil,
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}, {
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msg: "Seccomp pod default",
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config: makeConfig(map[string]string{
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v1.SeccompPodAnnotationKey: "docker/default",
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}),
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expectedOpts: nil,
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}, {
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msg: "AppArmor runtime/default",
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config: makeConfig(map[string]string{
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apparmor.ContainerAnnotationKeyPrefix + containerName: apparmor.ProfileRuntimeDefault,
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}),
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expectedOpts: []string{"seccomp=unconfined"},
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}, {
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msg: "AppArmor local profile",
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config: makeConfig(map[string]string{
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apparmor.ContainerAnnotationKeyPrefix + containerName: apparmor.ProfileNamePrefix + "foo",
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}),
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expectedOpts: []string{"seccomp=unconfined", "apparmor=foo"},
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}, {
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msg: "AppArmor and seccomp profile",
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config: makeConfig(map[string]string{
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v1.SeccompContainerAnnotationKeyPrefix + containerName: "docker/default",
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apparmor.ContainerAnnotationKeyPrefix + containerName: apparmor.ProfileNamePrefix + "foo",
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}),
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expectedOpts: []string{"apparmor=foo"},
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}}
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for i, test := range tests {
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opts, err := getContainerSecurityOpts(containerName, test.config, "test/seccomp/profile/root")
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assert.NoError(t, err, "TestCase[%d]: %s", i, test.msg)
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assert.Len(t, opts, len(test.expectedOpts), "TestCase[%d]: %s", i, test.msg)
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for _, opt := range test.expectedOpts {
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assert.Contains(t, opts, opt, "TestCase[%d]: %s", i, test.msg)
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}
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}
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}
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// TestGetSandboxSecurityOpts tests the logic of generating sandbox security options from sandbox annotations.
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func TestGetSandboxSecurityOpts(t *testing.T) {
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makeConfig := func(annotations map[string]string) *runtimeapi.PodSandboxConfig {
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return makeSandboxConfigWithLabelsAndAnnotations("pod", "ns", "1234", 1, nil, annotations)
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}
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tests := []struct {
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msg string
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config *runtimeapi.PodSandboxConfig
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expectedOpts []string
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}{{
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msg: "No security annotations",
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config: makeConfig(nil),
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expectedOpts: []string{"seccomp=unconfined"},
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}, {
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msg: "Seccomp default",
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config: makeConfig(map[string]string{
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v1.SeccompPodAnnotationKey: "docker/default",
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}),
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expectedOpts: nil,
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}, {
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msg: "Seccomp unconfined",
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config: makeConfig(map[string]string{
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v1.SeccompPodAnnotationKey: "unconfined",
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}),
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expectedOpts: []string{"seccomp=unconfined"},
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}, {
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msg: "Seccomp pod and container profile",
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config: makeConfig(map[string]string{
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v1.SeccompContainerAnnotationKeyPrefix + "test-container": "unconfined",
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v1.SeccompPodAnnotationKey: "docker/default",
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}),
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expectedOpts: nil,
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}}
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for i, test := range tests {
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opts, err := getSandboxSecurityOpts(test.config, "test/seccomp/profile/root")
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assert.NoError(t, err, "TestCase[%d]: %s", i, test.msg)
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assert.Len(t, opts, len(test.expectedOpts), "TestCase[%d]: %s", i, test.msg)
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for _, opt := range test.expectedOpts {
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assert.Contains(t, opts, opt, "TestCase[%d]: %s", i, test.msg)
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}
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}
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}
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// TestGetSystclsFromAnnotations tests the logic of getting sysctls from annotations.
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func TestGetSystclsFromAnnotations(t *testing.T) {
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tests := []struct {
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annotations map[string]string
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expectedSysctls map[string]string
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}{{
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annotations: map[string]string{
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v1.SysctlsPodAnnotationKey: "kernel.shmmni=32768,kernel.shmmax=1000000000",
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v1.UnsafeSysctlsPodAnnotationKey: "knet.ipv4.route.min_pmtu=1000",
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},
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expectedSysctls: map[string]string{
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"kernel.shmmni": "32768",
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"kernel.shmmax": "1000000000",
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"knet.ipv4.route.min_pmtu": "1000",
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},
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}, {
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annotations: map[string]string{
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v1.SysctlsPodAnnotationKey: "kernel.shmmni=32768,kernel.shmmax=1000000000",
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},
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expectedSysctls: map[string]string{
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"kernel.shmmni": "32768",
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"kernel.shmmax": "1000000000",
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},
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}, {
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annotations: map[string]string{
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v1.UnsafeSysctlsPodAnnotationKey: "knet.ipv4.route.min_pmtu=1000",
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},
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expectedSysctls: map[string]string{
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"knet.ipv4.route.min_pmtu": "1000",
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},
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}}
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for i, test := range tests {
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actual, err := getSysctlsFromAnnotations(test.annotations)
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assert.NoError(t, err, "TestCase[%d]", i)
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assert.Len(t, actual, len(test.expectedSysctls), "TestCase[%d]", i)
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assert.Equal(t, test.expectedSysctls, actual, "TestCase[%d]", i)
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}
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}
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// TestGetUserFromImageUser tests the logic of getting image uid or user name of image user.
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func TestGetUserFromImageUser(t *testing.T) {
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newI64 := func(i int64) *int64 { return &i }
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newStr := func(s string) *string { return &s }
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for c, test := range map[string]struct {
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user string
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uid *int64
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name *string
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}{
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"no gid": {
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user: "0",
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uid: newI64(0),
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},
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"uid/gid": {
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user: "0:1",
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uid: newI64(0),
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},
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"empty user": {
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user: "",
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},
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"multiple spearators": {
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user: "1:2:3",
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uid: newI64(1),
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},
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"root username": {
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user: "root:root",
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name: newStr("root"),
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},
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"username": {
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user: "test:test",
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name: newStr("test"),
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},
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} {
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t.Logf("TestCase - %q", c)
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actualUID, actualName := getUserFromImageUser(test.user)
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assert.Equal(t, test.uid, actualUID)
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assert.Equal(t, test.name, actualName)
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}
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}
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func TestParsingCreationConflictError(t *testing.T) {
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// Expected error message from docker.
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msg := "Conflict. The name \"/k8s_POD_pfpod_e2e-tests-port-forwarding-dlxt2_81a3469e-99e1-11e6-89f2-42010af00002_0\" is already in use by container 24666ab8c814d16f986449e504ea0159468ddf8da01897144a770f66dce0e14e. You have to remove (or rename) that container to be able to reuse that name."
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matches := conflictRE.FindStringSubmatch(msg)
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require.Len(t, matches, 2)
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require.Equal(t, matches[1], "24666ab8c814d16f986449e504ea0159468ddf8da01897144a770f66dce0e14e")
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}
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