148 lines
4.2 KiB
Go
148 lines
4.2 KiB
Go
/*
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Copyright 2017 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 admission
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import (
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"io/ioutil"
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"os"
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"reflect"
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"testing"
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"k8s.io/kubernetes/pkg/apis/componentconfig"
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_ "k8s.io/kubernetes/pkg/apis/componentconfig/install"
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)
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func TestReadAdmissionConfiguration(t *testing.T) {
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// create a place holder file to hold per test config
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configFile, err := ioutil.TempFile("", "admission-plugin-config")
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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if err = configFile.Close(); err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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configFileName := configFile.Name()
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// the location that will be fixed up to be relative to the test config file.
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imagePolicyWebhookFile, err := makeAbs("image-policy-webhook.json", os.TempDir())
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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// individual test scenarios
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testCases := map[string]struct {
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ConfigBody string
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ExpectedAdmissionConfig *componentconfig.AdmissionConfiguration
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PluginNames []string
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}{
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"v1Alpha1 configuration - path fixup": {
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ConfigBody: `{
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"apiVersion": "componentconfig/v1alpha1",
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"kind": "AdmissionConfiguration",
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"plugins": [
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{"name": "ImagePolicyWebhook", "path": "image-policy-webhook.json"},
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{"name": "ResourceQuota"}
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]}`,
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ExpectedAdmissionConfig: &componentconfig.AdmissionConfiguration{
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Plugins: []componentconfig.AdmissionPluginConfiguration{
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{
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Name: "ImagePolicyWebhook",
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Path: imagePolicyWebhookFile,
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},
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{
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Name: "ResourceQuota",
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},
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},
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},
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PluginNames: []string{},
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},
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"v1Alpha1 configuration - abspath": {
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ConfigBody: `{
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"apiVersion": "componentconfig/v1alpha1",
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"kind": "AdmissionConfiguration",
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"plugins": [
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{"name": "ImagePolicyWebhook", "path": "/tmp/image-policy-webhook.json"},
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{"name": "ResourceQuota"}
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]}`,
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ExpectedAdmissionConfig: &componentconfig.AdmissionConfiguration{
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Plugins: []componentconfig.AdmissionPluginConfiguration{
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{
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Name: "ImagePolicyWebhook",
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Path: "/tmp/image-policy-webhook.json",
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},
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{
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Name: "ResourceQuota",
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},
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},
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},
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PluginNames: []string{},
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},
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"legacy configuration with using legacy plugins": {
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ConfigBody: `{
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"imagePolicy": {
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"kubeConfigFile": "/home/user/.kube/config",
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"allowTTL": 30,
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"denyTTL": 30,
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"retryBackoff": 500,
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"defaultAllow": true
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},
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"podNodeSelectorPluginConfig": {
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"clusterDefaultNodeSelector": ""
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}
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}`,
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ExpectedAdmissionConfig: &componentconfig.AdmissionConfiguration{
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Plugins: []componentconfig.AdmissionPluginConfiguration{
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{
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Name: "ImagePolicyWebhook",
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Path: configFileName,
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},
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{
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Name: "PodNodeSelector",
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Path: configFileName,
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},
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},
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},
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PluginNames: []string{"ImagePolicyWebhook", "PodNodeSelector"},
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},
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"legacy configuration not using legacy plugins": {
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ConfigBody: `{
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"imagePolicy": {
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"kubeConfigFile": "/home/user/.kube/config",
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"allowTTL": 30,
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"denyTTL": 30,
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"retryBackoff": 500,
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"defaultAllow": true
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},
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"podNodeSelectorPluginConfig": {
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"clusterDefaultNodeSelector": ""
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}
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}`,
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ExpectedAdmissionConfig: &componentconfig.AdmissionConfiguration{},
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PluginNames: []string{"NamespaceLifecycle", "InitialResources"},
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},
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}
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for testName, testCase := range testCases {
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if err = ioutil.WriteFile(configFileName, []byte(testCase.ConfigBody), 0644); err != nil {
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t.Fatalf("unexpected err writing temp file: %v", err)
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}
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config, err := ReadAdmissionConfiguration(testCase.PluginNames, configFileName)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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if !reflect.DeepEqual(config.(configProvider).config, testCase.ExpectedAdmissionConfig) {
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t.Errorf("%s: Expected:\n\t%#v\nGot:\n\t%#v", testName, testCase.ExpectedAdmissionConfig, config.(configProvider).config)
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}
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}
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}
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