81b3540206
Once we patch a kubelet configuration file, the patched output is in JSON. Make sure it's converted back to YAML, given the kubelet config in the cluster and on disk is always in YAML. Add unit test for the new function applyKubeletConfigPatches()
106 lines
3.1 KiB
Go
106 lines
3.1 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 kubelet
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import (
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"bytes"
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"io/ioutil"
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"os"
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"path/filepath"
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"testing"
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v1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/client-go/kubernetes/fake"
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core "k8s.io/client-go/testing"
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configutil "k8s.io/kubernetes/cmd/kubeadm/app/util/config"
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)
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func TestCreateConfigMap(t *testing.T) {
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nodeName := "fake-node"
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client := fake.NewSimpleClientset()
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client.PrependReactor("get", "nodes", func(action core.Action) (bool, runtime.Object, error) {
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return true, &v1.Node{
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ObjectMeta: metav1.ObjectMeta{
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Name: nodeName,
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},
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Spec: v1.NodeSpec{},
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}, nil
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})
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client.PrependReactor("create", "roles", func(action core.Action) (bool, runtime.Object, error) {
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return true, nil, nil
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})
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client.PrependReactor("create", "rolebindings", func(action core.Action) (bool, runtime.Object, error) {
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return true, nil, nil
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})
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client.PrependReactor("create", "configmaps", func(action core.Action) (bool, runtime.Object, error) {
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return true, nil, nil
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})
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internalcfg, err := configutil.DefaultedStaticInitConfiguration()
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if err != nil {
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t.Fatalf("unexpected failure when defaulting InitConfiguration: %v", err)
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}
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if err := CreateConfigMap(&internalcfg.ClusterConfiguration, client); err != nil {
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t.Errorf("CreateConfigMap: unexpected error %v", err)
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}
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}
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func TestCreateConfigMapRBACRules(t *testing.T) {
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client := fake.NewSimpleClientset()
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client.PrependReactor("create", "roles", func(action core.Action) (bool, runtime.Object, error) {
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return true, nil, nil
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})
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client.PrependReactor("create", "rolebindings", func(action core.Action) (bool, runtime.Object, error) {
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return true, nil, nil
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})
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if err := createConfigMapRBACRules(client); err != nil {
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t.Errorf("createConfigMapRBACRules: unexpected error %v", err)
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}
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}
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func TestApplyKubeletConfigPatches(t *testing.T) {
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var (
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input = []byte("bar: 0\nfoo: 0\n")
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patch = []byte("bar: 1\n")
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expectedOutput = []byte("bar: 1\nfoo: 0\n")
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)
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dir, err := ioutil.TempDir("", "patches")
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if err != nil {
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t.Fatalf("could not create temp dir: %v", err)
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}
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defer os.RemoveAll(dir)
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if err := ioutil.WriteFile(filepath.Join(dir, "kubeletconfiguration.yaml"), patch, 0644); err != nil {
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t.Fatalf("could not write patch file: %v", err)
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}
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output, err := applyKubeletConfigPatches(input, dir, ioutil.Discard)
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if err != nil {
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t.Fatalf("could not apply patch: %v", err)
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}
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if !bytes.Equal(output, expectedOutput) {
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t.Fatalf("expected output:\n%s\ngot\n%s\n", expectedOutput, output)
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}
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}
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