580 lines
17 KiB
Go
580 lines
17 KiB
Go
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/*
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Copyright 2014 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 clientcmd
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path"
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"path/filepath"
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"reflect"
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"strings"
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"testing"
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"github.com/ghodss/yaml"
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"k8s.io/apimachinery/pkg/runtime"
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clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
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clientcmdlatest "k8s.io/client-go/tools/clientcmd/api/latest"
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)
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var (
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testConfigAlfa = clientcmdapi.Config{
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AuthInfos: map[string]*clientcmdapi.AuthInfo{
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"red-user": {Token: "red-token"}},
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Clusters: map[string]*clientcmdapi.Cluster{
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"cow-cluster": {Server: "http://cow.org:8080"}},
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Contexts: map[string]*clientcmdapi.Context{
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"federal-context": {AuthInfo: "red-user", Cluster: "cow-cluster", Namespace: "hammer-ns"}},
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}
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testConfigBravo = clientcmdapi.Config{
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AuthInfos: map[string]*clientcmdapi.AuthInfo{
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"black-user": {Token: "black-token"}},
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Clusters: map[string]*clientcmdapi.Cluster{
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"pig-cluster": {Server: "http://pig.org:8080"}},
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Contexts: map[string]*clientcmdapi.Context{
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"queen-anne-context": {AuthInfo: "black-user", Cluster: "pig-cluster", Namespace: "saw-ns"}},
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}
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testConfigCharlie = clientcmdapi.Config{
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AuthInfos: map[string]*clientcmdapi.AuthInfo{
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"green-user": {Token: "green-token"}},
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Clusters: map[string]*clientcmdapi.Cluster{
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"horse-cluster": {Server: "http://horse.org:8080"}},
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Contexts: map[string]*clientcmdapi.Context{
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"shaker-context": {AuthInfo: "green-user", Cluster: "horse-cluster", Namespace: "chisel-ns"}},
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}
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testConfigDelta = clientcmdapi.Config{
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AuthInfos: map[string]*clientcmdapi.AuthInfo{
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"blue-user": {Token: "blue-token"}},
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Clusters: map[string]*clientcmdapi.Cluster{
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"chicken-cluster": {Server: "http://chicken.org:8080"}},
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Contexts: map[string]*clientcmdapi.Context{
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"gothic-context": {AuthInfo: "blue-user", Cluster: "chicken-cluster", Namespace: "plane-ns"}},
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}
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testConfigConflictAlfa = clientcmdapi.Config{
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AuthInfos: map[string]*clientcmdapi.AuthInfo{
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"red-user": {Token: "a-different-red-token"},
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"yellow-user": {Token: "yellow-token"}},
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Clusters: map[string]*clientcmdapi.Cluster{
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"cow-cluster": {Server: "http://a-different-cow.org:8080", InsecureSkipTLSVerify: true},
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"donkey-cluster": {Server: "http://donkey.org:8080", InsecureSkipTLSVerify: true}},
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CurrentContext: "federal-context",
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}
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)
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func TestNonExistentCommandLineFile(t *testing.T) {
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loadingRules := ClientConfigLoadingRules{
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ExplicitPath: "bogus_file",
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}
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_, err := loadingRules.Load()
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if err == nil {
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t.Fatalf("Expected error for missing command-line file, got none")
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}
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if !strings.Contains(err.Error(), "bogus_file") {
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t.Fatalf("Expected error about 'bogus_file', got %s", err.Error())
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}
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}
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func TestToleratingMissingFiles(t *testing.T) {
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loadingRules := ClientConfigLoadingRules{
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Precedence: []string{"bogus1", "bogus2", "bogus3"},
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}
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_, err := loadingRules.Load()
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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}
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func TestErrorReadingFile(t *testing.T) {
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commandLineFile, _ := ioutil.TempFile("", "")
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defer os.Remove(commandLineFile.Name())
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if err := ioutil.WriteFile(commandLineFile.Name(), []byte("bogus value"), 0644); err != nil {
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t.Fatalf("Error creating tempfile: %v", err)
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}
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loadingRules := ClientConfigLoadingRules{
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ExplicitPath: commandLineFile.Name(),
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}
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_, err := loadingRules.Load()
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if err == nil {
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t.Fatalf("Expected error for unloadable file, got none")
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}
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if !strings.Contains(err.Error(), commandLineFile.Name()) {
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t.Fatalf("Expected error about '%s', got %s", commandLineFile.Name(), err.Error())
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}
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}
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func TestErrorReadingNonFile(t *testing.T) {
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tmpdir, err := ioutil.TempDir("", "")
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if err != nil {
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t.Fatalf("Couldn't create tmpdir")
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}
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defer os.RemoveAll(tmpdir)
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loadingRules := ClientConfigLoadingRules{
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ExplicitPath: tmpdir,
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}
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_, err = loadingRules.Load()
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if err == nil {
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t.Fatalf("Expected error for non-file, got none")
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}
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if !strings.Contains(err.Error(), tmpdir) {
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t.Fatalf("Expected error about '%s', got %s", tmpdir, err.Error())
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}
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}
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func TestConflictingCurrentContext(t *testing.T) {
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commandLineFile, _ := ioutil.TempFile("", "")
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defer os.Remove(commandLineFile.Name())
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envVarFile, _ := ioutil.TempFile("", "")
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defer os.Remove(envVarFile.Name())
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mockCommandLineConfig := clientcmdapi.Config{
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CurrentContext: "any-context-value",
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}
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mockEnvVarConfig := clientcmdapi.Config{
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CurrentContext: "a-different-context",
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}
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WriteToFile(mockCommandLineConfig, commandLineFile.Name())
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WriteToFile(mockEnvVarConfig, envVarFile.Name())
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loadingRules := ClientConfigLoadingRules{
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ExplicitPath: commandLineFile.Name(),
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Precedence: []string{envVarFile.Name()},
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}
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mergedConfig, err := loadingRules.Load()
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if err != nil {
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t.Errorf("Unexpected error: %v", err)
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}
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if mergedConfig.CurrentContext != mockCommandLineConfig.CurrentContext {
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t.Errorf("expected %v, got %v", mockCommandLineConfig.CurrentContext, mergedConfig.CurrentContext)
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}
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}
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func TestLoadingEmptyMaps(t *testing.T) {
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configFile, _ := ioutil.TempFile("", "")
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defer os.Remove(configFile.Name())
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mockConfig := clientcmdapi.Config{
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CurrentContext: "any-context-value",
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}
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WriteToFile(mockConfig, configFile.Name())
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config, err := LoadFromFile(configFile.Name())
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if err != nil {
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t.Errorf("Unexpected error: %v", err)
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}
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if config.Clusters == nil {
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t.Error("expected config.Clusters to be non-nil")
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}
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if config.AuthInfos == nil {
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t.Error("expected config.AuthInfos to be non-nil")
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}
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if config.Contexts == nil {
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t.Error("expected config.Contexts to be non-nil")
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}
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}
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func TestResolveRelativePaths(t *testing.T) {
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pathResolutionConfig1 := clientcmdapi.Config{
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AuthInfos: map[string]*clientcmdapi.AuthInfo{
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"relative-user-1": {ClientCertificate: "relative/client/cert", ClientKey: "../relative/client/key"},
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"absolute-user-1": {ClientCertificate: "/absolute/client/cert", ClientKey: "/absolute/client/key"},
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},
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Clusters: map[string]*clientcmdapi.Cluster{
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"relative-server-1": {CertificateAuthority: "../relative/ca"},
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"absolute-server-1": {CertificateAuthority: "/absolute/ca"},
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},
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}
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pathResolutionConfig2 := clientcmdapi.Config{
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AuthInfos: map[string]*clientcmdapi.AuthInfo{
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"relative-user-2": {ClientCertificate: "relative/client/cert2", ClientKey: "../relative/client/key2"},
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"absolute-user-2": {ClientCertificate: "/absolute/client/cert2", ClientKey: "/absolute/client/key2"},
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},
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Clusters: map[string]*clientcmdapi.Cluster{
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"relative-server-2": {CertificateAuthority: "../relative/ca2"},
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"absolute-server-2": {CertificateAuthority: "/absolute/ca2"},
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},
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}
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configDir1, _ := ioutil.TempDir("", "")
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defer os.RemoveAll(configDir1)
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configFile1 := path.Join(configDir1, ".kubeconfig")
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configDir1, _ = filepath.Abs(configDir1)
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configDir2, _ := ioutil.TempDir("", "")
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defer os.RemoveAll(configDir2)
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configDir2, _ = ioutil.TempDir(configDir2, "")
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configFile2 := path.Join(configDir2, ".kubeconfig")
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configDir2, _ = filepath.Abs(configDir2)
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WriteToFile(pathResolutionConfig1, configFile1)
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WriteToFile(pathResolutionConfig2, configFile2)
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loadingRules := ClientConfigLoadingRules{
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Precedence: []string{configFile1, configFile2},
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}
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mergedConfig, err := loadingRules.Load()
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if err != nil {
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t.Errorf("Unexpected error: %v", err)
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}
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foundClusterCount := 0
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for key, cluster := range mergedConfig.Clusters {
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if key == "relative-server-1" {
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foundClusterCount++
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matchStringArg(path.Join(configDir1, pathResolutionConfig1.Clusters["relative-server-1"].CertificateAuthority), cluster.CertificateAuthority, t)
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}
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if key == "relative-server-2" {
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foundClusterCount++
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matchStringArg(path.Join(configDir2, pathResolutionConfig2.Clusters["relative-server-2"].CertificateAuthority), cluster.CertificateAuthority, t)
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}
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if key == "absolute-server-1" {
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foundClusterCount++
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matchStringArg(pathResolutionConfig1.Clusters["absolute-server-1"].CertificateAuthority, cluster.CertificateAuthority, t)
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}
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if key == "absolute-server-2" {
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foundClusterCount++
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matchStringArg(pathResolutionConfig2.Clusters["absolute-server-2"].CertificateAuthority, cluster.CertificateAuthority, t)
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}
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}
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if foundClusterCount != 4 {
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t.Errorf("Expected 4 clusters, found %v: %v", foundClusterCount, mergedConfig.Clusters)
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}
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foundAuthInfoCount := 0
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for key, authInfo := range mergedConfig.AuthInfos {
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if key == "relative-user-1" {
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foundAuthInfoCount++
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matchStringArg(path.Join(configDir1, pathResolutionConfig1.AuthInfos["relative-user-1"].ClientCertificate), authInfo.ClientCertificate, t)
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matchStringArg(path.Join(configDir1, pathResolutionConfig1.AuthInfos["relative-user-1"].ClientKey), authInfo.ClientKey, t)
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}
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if key == "relative-user-2" {
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foundAuthInfoCount++
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matchStringArg(path.Join(configDir2, pathResolutionConfig2.AuthInfos["relative-user-2"].ClientCertificate), authInfo.ClientCertificate, t)
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matchStringArg(path.Join(configDir2, pathResolutionConfig2.AuthInfos["relative-user-2"].ClientKey), authInfo.ClientKey, t)
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}
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if key == "absolute-user-1" {
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foundAuthInfoCount++
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matchStringArg(pathResolutionConfig1.AuthInfos["absolute-user-1"].ClientCertificate, authInfo.ClientCertificate, t)
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matchStringArg(pathResolutionConfig1.AuthInfos["absolute-user-1"].ClientKey, authInfo.ClientKey, t)
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}
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if key == "absolute-user-2" {
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foundAuthInfoCount++
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matchStringArg(pathResolutionConfig2.AuthInfos["absolute-user-2"].ClientCertificate, authInfo.ClientCertificate, t)
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matchStringArg(pathResolutionConfig2.AuthInfos["absolute-user-2"].ClientKey, authInfo.ClientKey, t)
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}
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}
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if foundAuthInfoCount != 4 {
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t.Errorf("Expected 4 users, found %v: %v", foundAuthInfoCount, mergedConfig.AuthInfos)
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}
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}
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func TestMigratingFile(t *testing.T) {
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sourceFile, _ := ioutil.TempFile("", "")
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defer os.Remove(sourceFile.Name())
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destinationFile, _ := ioutil.TempFile("", "")
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// delete the file so that we'll write to it
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os.Remove(destinationFile.Name())
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WriteToFile(testConfigAlfa, sourceFile.Name())
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loadingRules := ClientConfigLoadingRules{
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MigrationRules: map[string]string{destinationFile.Name(): sourceFile.Name()},
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}
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if _, err := loadingRules.Load(); err != nil {
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t.Errorf("unexpected error %v", err)
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}
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// the load should have recreated this file
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defer os.Remove(destinationFile.Name())
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sourceContent, err := ioutil.ReadFile(sourceFile.Name())
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if err != nil {
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t.Errorf("unexpected error %v", err)
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}
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destinationContent, err := ioutil.ReadFile(destinationFile.Name())
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if err != nil {
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t.Errorf("unexpected error %v", err)
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}
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if !reflect.DeepEqual(sourceContent, destinationContent) {
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t.Errorf("source and destination do not match")
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}
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}
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func TestMigratingFileLeaveExistingFileAlone(t *testing.T) {
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sourceFile, _ := ioutil.TempFile("", "")
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defer os.Remove(sourceFile.Name())
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destinationFile, _ := ioutil.TempFile("", "")
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defer os.Remove(destinationFile.Name())
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WriteToFile(testConfigAlfa, sourceFile.Name())
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loadingRules := ClientConfigLoadingRules{
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MigrationRules: map[string]string{destinationFile.Name(): sourceFile.Name()},
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}
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if _, err := loadingRules.Load(); err != nil {
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t.Errorf("unexpected error %v", err)
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}
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destinationContent, err := ioutil.ReadFile(destinationFile.Name())
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if err != nil {
|
||
|
|
t.Errorf("unexpected error %v", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
if len(destinationContent) > 0 {
|
||
|
|
t.Errorf("destination should not have been touched")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestMigratingFileSourceMissingSkip(t *testing.T) {
|
||
|
|
sourceFilename := "some-missing-file"
|
||
|
|
destinationFile, _ := ioutil.TempFile("", "")
|
||
|
|
// delete the file so that we'll write to it
|
||
|
|
os.Remove(destinationFile.Name())
|
||
|
|
|
||
|
|
loadingRules := ClientConfigLoadingRules{
|
||
|
|
MigrationRules: map[string]string{destinationFile.Name(): sourceFilename},
|
||
|
|
}
|
||
|
|
|
||
|
|
if _, err := loadingRules.Load(); err != nil {
|
||
|
|
t.Errorf("unexpected error %v", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
if _, err := os.Stat(destinationFile.Name()); !os.IsNotExist(err) {
|
||
|
|
t.Errorf("destination should not exist")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestFileLocking(t *testing.T) {
|
||
|
|
f, _ := ioutil.TempFile("", "")
|
||
|
|
defer os.Remove(f.Name())
|
||
|
|
|
||
|
|
err := lockFile(f.Name())
|
||
|
|
if err != nil {
|
||
|
|
t.Errorf("unexpected error while locking file: %v", err)
|
||
|
|
}
|
||
|
|
defer unlockFile(f.Name())
|
||
|
|
|
||
|
|
err = lockFile(f.Name())
|
||
|
|
if err == nil {
|
||
|
|
t.Error("expected error while locking file.")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func Example_noMergingOnExplicitPaths() {
|
||
|
|
commandLineFile, _ := ioutil.TempFile("", "")
|
||
|
|
defer os.Remove(commandLineFile.Name())
|
||
|
|
envVarFile, _ := ioutil.TempFile("", "")
|
||
|
|
defer os.Remove(envVarFile.Name())
|
||
|
|
|
||
|
|
WriteToFile(testConfigAlfa, commandLineFile.Name())
|
||
|
|
WriteToFile(testConfigConflictAlfa, envVarFile.Name())
|
||
|
|
|
||
|
|
loadingRules := ClientConfigLoadingRules{
|
||
|
|
ExplicitPath: commandLineFile.Name(),
|
||
|
|
Precedence: []string{envVarFile.Name()},
|
||
|
|
}
|
||
|
|
|
||
|
|
mergedConfig, err := loadingRules.Load()
|
||
|
|
|
||
|
|
json, err := runtime.Encode(clientcmdlatest.Codec, mergedConfig)
|
||
|
|
if err != nil {
|
||
|
|
fmt.Printf("Unexpected error: %v", err)
|
||
|
|
}
|
||
|
|
output, err := yaml.JSONToYAML(json)
|
||
|
|
if err != nil {
|
||
|
|
fmt.Printf("Unexpected error: %v", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
fmt.Printf("%v", string(output))
|
||
|
|
// Output:
|
||
|
|
// apiVersion: v1
|
||
|
|
// clusters:
|
||
|
|
// - cluster:
|
||
|
|
// server: http://cow.org:8080
|
||
|
|
// name: cow-cluster
|
||
|
|
// contexts:
|
||
|
|
// - context:
|
||
|
|
// cluster: cow-cluster
|
||
|
|
// namespace: hammer-ns
|
||
|
|
// user: red-user
|
||
|
|
// name: federal-context
|
||
|
|
// current-context: ""
|
||
|
|
// kind: Config
|
||
|
|
// preferences: {}
|
||
|
|
// users:
|
||
|
|
// - name: red-user
|
||
|
|
// user:
|
||
|
|
// token: red-token
|
||
|
|
}
|
||
|
|
|
||
|
|
func Example_mergingSomeWithConflict() {
|
||
|
|
commandLineFile, _ := ioutil.TempFile("", "")
|
||
|
|
defer os.Remove(commandLineFile.Name())
|
||
|
|
envVarFile, _ := ioutil.TempFile("", "")
|
||
|
|
defer os.Remove(envVarFile.Name())
|
||
|
|
|
||
|
|
WriteToFile(testConfigAlfa, commandLineFile.Name())
|
||
|
|
WriteToFile(testConfigConflictAlfa, envVarFile.Name())
|
||
|
|
|
||
|
|
loadingRules := ClientConfigLoadingRules{
|
||
|
|
Precedence: []string{commandLineFile.Name(), envVarFile.Name()},
|
||
|
|
}
|
||
|
|
|
||
|
|
mergedConfig, err := loadingRules.Load()
|
||
|
|
|
||
|
|
json, err := runtime.Encode(clientcmdlatest.Codec, mergedConfig)
|
||
|
|
if err != nil {
|
||
|
|
fmt.Printf("Unexpected error: %v", err)
|
||
|
|
}
|
||
|
|
output, err := yaml.JSONToYAML(json)
|
||
|
|
if err != nil {
|
||
|
|
fmt.Printf("Unexpected error: %v", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
fmt.Printf("%v", string(output))
|
||
|
|
// Output:
|
||
|
|
// apiVersion: v1
|
||
|
|
// clusters:
|
||
|
|
// - cluster:
|
||
|
|
// server: http://cow.org:8080
|
||
|
|
// name: cow-cluster
|
||
|
|
// - cluster:
|
||
|
|
// insecure-skip-tls-verify: true
|
||
|
|
// server: http://donkey.org:8080
|
||
|
|
// name: donkey-cluster
|
||
|
|
// contexts:
|
||
|
|
// - context:
|
||
|
|
// cluster: cow-cluster
|
||
|
|
// namespace: hammer-ns
|
||
|
|
// user: red-user
|
||
|
|
// name: federal-context
|
||
|
|
// current-context: federal-context
|
||
|
|
// kind: Config
|
||
|
|
// preferences: {}
|
||
|
|
// users:
|
||
|
|
// - name: red-user
|
||
|
|
// user:
|
||
|
|
// token: red-token
|
||
|
|
// - name: yellow-user
|
||
|
|
// user:
|
||
|
|
// token: yellow-token
|
||
|
|
}
|
||
|
|
|
||
|
|
func Example_mergingEverythingNoConflicts() {
|
||
|
|
commandLineFile, _ := ioutil.TempFile("", "")
|
||
|
|
defer os.Remove(commandLineFile.Name())
|
||
|
|
envVarFile, _ := ioutil.TempFile("", "")
|
||
|
|
defer os.Remove(envVarFile.Name())
|
||
|
|
currentDirFile, _ := ioutil.TempFile("", "")
|
||
|
|
defer os.Remove(currentDirFile.Name())
|
||
|
|
homeDirFile, _ := ioutil.TempFile("", "")
|
||
|
|
defer os.Remove(homeDirFile.Name())
|
||
|
|
|
||
|
|
WriteToFile(testConfigAlfa, commandLineFile.Name())
|
||
|
|
WriteToFile(testConfigBravo, envVarFile.Name())
|
||
|
|
WriteToFile(testConfigCharlie, currentDirFile.Name())
|
||
|
|
WriteToFile(testConfigDelta, homeDirFile.Name())
|
||
|
|
|
||
|
|
loadingRules := ClientConfigLoadingRules{
|
||
|
|
Precedence: []string{commandLineFile.Name(), envVarFile.Name(), currentDirFile.Name(), homeDirFile.Name()},
|
||
|
|
}
|
||
|
|
|
||
|
|
mergedConfig, err := loadingRules.Load()
|
||
|
|
|
||
|
|
json, err := runtime.Encode(clientcmdlatest.Codec, mergedConfig)
|
||
|
|
if err != nil {
|
||
|
|
fmt.Printf("Unexpected error: %v", err)
|
||
|
|
}
|
||
|
|
output, err := yaml.JSONToYAML(json)
|
||
|
|
if err != nil {
|
||
|
|
fmt.Printf("Unexpected error: %v", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
fmt.Printf("%v", string(output))
|
||
|
|
// Output:
|
||
|
|
// apiVersion: v1
|
||
|
|
// clusters:
|
||
|
|
// - cluster:
|
||
|
|
// server: http://chicken.org:8080
|
||
|
|
// name: chicken-cluster
|
||
|
|
// - cluster:
|
||
|
|
// server: http://cow.org:8080
|
||
|
|
// name: cow-cluster
|
||
|
|
// - cluster:
|
||
|
|
// server: http://horse.org:8080
|
||
|
|
// name: horse-cluster
|
||
|
|
// - cluster:
|
||
|
|
// server: http://pig.org:8080
|
||
|
|
// name: pig-cluster
|
||
|
|
// contexts:
|
||
|
|
// - context:
|
||
|
|
// cluster: cow-cluster
|
||
|
|
// namespace: hammer-ns
|
||
|
|
// user: red-user
|
||
|
|
// name: federal-context
|
||
|
|
// - context:
|
||
|
|
// cluster: chicken-cluster
|
||
|
|
// namespace: plane-ns
|
||
|
|
// user: blue-user
|
||
|
|
// name: gothic-context
|
||
|
|
// - context:
|
||
|
|
// cluster: pig-cluster
|
||
|
|
// namespace: saw-ns
|
||
|
|
// user: black-user
|
||
|
|
// name: queen-anne-context
|
||
|
|
// - context:
|
||
|
|
// cluster: horse-cluster
|
||
|
|
// namespace: chisel-ns
|
||
|
|
// user: green-user
|
||
|
|
// name: shaker-context
|
||
|
|
// current-context: ""
|
||
|
|
// kind: Config
|
||
|
|
// preferences: {}
|
||
|
|
// users:
|
||
|
|
// - name: black-user
|
||
|
|
// user:
|
||
|
|
// token: black-token
|
||
|
|
// - name: blue-user
|
||
|
|
// user:
|
||
|
|
// token: blue-token
|
||
|
|
// - name: green-user
|
||
|
|
// user:
|
||
|
|
// token: green-token
|
||
|
|
// - name: red-user
|
||
|
|
// user:
|
||
|
|
// token: red-token
|
||
|
|
}
|