440 lines
14 KiB
Go
440 lines
14 KiB
Go
/*
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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 cmd
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io/ioutil"
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"net/http"
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"os"
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"testing"
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"github.com/spf13/cobra"
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kubeerr "k8s.io/apimachinery/pkg/api/errors"
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"k8s.io/apimachinery/pkg/api/meta"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/api/annotations"
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"k8s.io/kubernetes/pkg/api/testapi"
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"k8s.io/kubernetes/pkg/client/restclient/fake"
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cmdtesting "k8s.io/kubernetes/pkg/kubectl/cmd/testing"
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cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
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)
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func TestApplyExtraArgsFail(t *testing.T) {
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buf := bytes.NewBuffer([]byte{})
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errBuf := bytes.NewBuffer([]byte{})
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f, _, _, _ := cmdtesting.NewAPIFactory()
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c := NewCmdApply(f, buf, errBuf)
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if validateApplyArgs(c, []string{"rc"}) == nil {
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t.Fatalf("unexpected non-error")
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}
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}
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func validateApplyArgs(cmd *cobra.Command, args []string) error {
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if len(args) != 0 {
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return cmdutil.UsageError(cmd, "Unexpected args: %v", args)
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}
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return nil
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}
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const (
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filenameRC = "../../../test/fixtures/pkg/kubectl/cmd/apply/rc.yaml"
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filenameSVC = "../../../test/fixtures/pkg/kubectl/cmd/apply/service.yaml"
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filenameRCSVC = "../../../test/fixtures/pkg/kubectl/cmd/apply/rc-service.yaml"
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)
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func readBytesFromFile(t *testing.T, filename string) []byte {
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file, err := os.Open(filename)
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if err != nil {
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t.Fatal(err)
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}
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defer file.Close()
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data, err := ioutil.ReadAll(file)
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if err != nil {
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t.Fatal(err)
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}
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return data
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}
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func readReplicationController(t *testing.T, filenameRC string) (string, []byte) {
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rcObj := readReplicationControllerFromFile(t, filenameRC)
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metaAccessor, err := meta.Accessor(rcObj)
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if err != nil {
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t.Fatal(err)
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}
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rcBytes, err := runtime.Encode(testapi.Default.Codec(), rcObj)
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if err != nil {
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t.Fatal(err)
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}
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return metaAccessor.GetName(), rcBytes
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}
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func readReplicationControllerFromFile(t *testing.T, filename string) *api.ReplicationController {
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data := readBytesFromFile(t, filename)
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rc := api.ReplicationController{}
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if err := runtime.DecodeInto(testapi.Default.Codec(), data, &rc); err != nil {
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t.Fatal(err)
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}
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return &rc
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}
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func readServiceFromFile(t *testing.T, filename string) *api.Service {
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data := readBytesFromFile(t, filename)
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svc := api.Service{}
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if err := runtime.DecodeInto(testapi.Default.Codec(), data, &svc); err != nil {
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t.Fatal(err)
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}
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return &svc
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}
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func annotateRuntimeObject(t *testing.T, originalObj, currentObj runtime.Object, kind string) (string, []byte) {
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originalAccessor, err := meta.Accessor(originalObj)
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if err != nil {
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t.Fatal(err)
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}
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originalLabels := originalAccessor.GetLabels()
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originalLabels["DELETE_ME"] = "DELETE_ME"
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originalAccessor.SetLabels(originalLabels)
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original, err := runtime.Encode(testapi.Default.Codec(), originalObj)
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if err != nil {
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t.Fatal(err)
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}
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currentAccessor, err := meta.Accessor(currentObj)
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if err != nil {
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t.Fatal(err)
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}
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currentAnnotations := currentAccessor.GetAnnotations()
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if currentAnnotations == nil {
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currentAnnotations = make(map[string]string)
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}
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currentAnnotations[annotations.LastAppliedConfigAnnotation] = string(original)
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currentAccessor.SetAnnotations(currentAnnotations)
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current, err := runtime.Encode(testapi.Default.Codec(), currentObj)
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if err != nil {
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t.Fatal(err)
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}
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return currentAccessor.GetName(), current
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}
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func readAndAnnotateReplicationController(t *testing.T, filename string) (string, []byte) {
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rc1 := readReplicationControllerFromFile(t, filename)
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rc2 := readReplicationControllerFromFile(t, filename)
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return annotateRuntimeObject(t, rc1, rc2, "ReplicationController")
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}
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func readAndAnnotateService(t *testing.T, filename string) (string, []byte) {
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svc1 := readServiceFromFile(t, filename)
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svc2 := readServiceFromFile(t, filename)
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return annotateRuntimeObject(t, svc1, svc2, "Service")
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}
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func validatePatchApplication(t *testing.T, req *http.Request) {
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patch, err := ioutil.ReadAll(req.Body)
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if err != nil {
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t.Fatal(err)
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}
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patchMap := map[string]interface{}{}
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if err := json.Unmarshal(patch, &patchMap); err != nil {
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t.Fatal(err)
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}
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annotationsMap := walkMapPath(t, patchMap, []string{"metadata", "annotations"})
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if _, ok := annotationsMap[annotations.LastAppliedConfigAnnotation]; !ok {
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t.Fatalf("patch does not contain annotation:\n%s\n", patch)
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}
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labelMap := walkMapPath(t, patchMap, []string{"metadata", "labels"})
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if deleteMe, ok := labelMap["DELETE_ME"]; !ok || deleteMe != nil {
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t.Fatalf("patch does not remove deleted key: DELETE_ME:\n%s\n", patch)
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}
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}
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func walkMapPath(t *testing.T, start map[string]interface{}, path []string) map[string]interface{} {
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finish := start
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for i := 0; i < len(path); i++ {
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var ok bool
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finish, ok = finish[path[i]].(map[string]interface{})
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if !ok {
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t.Fatalf("key:%s of path:%v not found in map:%v", path[i], path, start)
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}
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}
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return finish
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}
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func TestApplyObjectWithoutAnnotation(t *testing.T) {
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initTestErrorHandler(t)
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nameRC, rcBytes := readReplicationController(t, filenameRC)
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pathRC := "/namespaces/test/replicationcontrollers/" + nameRC
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f, tf, _, ns := cmdtesting.NewAPIFactory()
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tf.Printer = &testPrinter{}
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tf.Client = &fake.RESTClient{
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NegotiatedSerializer: ns,
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Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
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switch p, m := req.URL.Path, req.Method; {
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case p == pathRC && m == "GET":
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bodyRC := ioutil.NopCloser(bytes.NewReader(rcBytes))
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: bodyRC}, nil
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case p == pathRC && m == "PATCH":
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bodyRC := ioutil.NopCloser(bytes.NewReader(rcBytes))
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: bodyRC}, nil
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default:
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t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
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return nil, nil
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}
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}),
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}
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tf.Namespace = "test"
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tf.ClientConfig = defaultClientConfig()
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buf := bytes.NewBuffer([]byte{})
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errBuf := bytes.NewBuffer([]byte{})
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cmd := NewCmdApply(f, buf, errBuf)
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cmd.Flags().Set("filename", filenameRC)
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cmd.Flags().Set("output", "name")
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cmd.Run(cmd, []string{})
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// uses the name from the file, not the response
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expectRC := "replicationcontroller/" + nameRC + "\n"
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expectWarning := warningNoLastAppliedConfigAnnotation
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if errBuf.String() != expectWarning {
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t.Fatalf("unexpected non-warning: %s\nexpected: %s", errBuf.String(), expectWarning)
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}
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if buf.String() != expectRC {
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t.Fatalf("unexpected output: %s\nexpected: %s", buf.String(), expectRC)
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}
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}
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func TestApplyObject(t *testing.T) {
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initTestErrorHandler(t)
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nameRC, currentRC := readAndAnnotateReplicationController(t, filenameRC)
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pathRC := "/namespaces/test/replicationcontrollers/" + nameRC
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f, tf, _, ns := cmdtesting.NewAPIFactory()
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tf.Printer = &testPrinter{}
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tf.Client = &fake.RESTClient{
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NegotiatedSerializer: ns,
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Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
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switch p, m := req.URL.Path, req.Method; {
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case p == pathRC && m == "GET":
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bodyRC := ioutil.NopCloser(bytes.NewReader(currentRC))
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: bodyRC}, nil
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case p == pathRC && m == "PATCH":
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validatePatchApplication(t, req)
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bodyRC := ioutil.NopCloser(bytes.NewReader(currentRC))
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: bodyRC}, nil
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default:
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t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
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return nil, nil
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}
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}),
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}
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tf.Namespace = "test"
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buf := bytes.NewBuffer([]byte{})
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errBuf := bytes.NewBuffer([]byte{})
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cmd := NewCmdApply(f, buf, errBuf)
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cmd.Flags().Set("filename", filenameRC)
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cmd.Flags().Set("output", "name")
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cmd.Run(cmd, []string{})
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// uses the name from the file, not the response
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expectRC := "replicationcontroller/" + nameRC + "\n"
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if buf.String() != expectRC {
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t.Fatalf("unexpected output: %s\nexpected: %s", buf.String(), expectRC)
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}
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}
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func TestApplyRetry(t *testing.T) {
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initTestErrorHandler(t)
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nameRC, currentRC := readAndAnnotateReplicationController(t, filenameRC)
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pathRC := "/namespaces/test/replicationcontrollers/" + nameRC
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firstPatch := true
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retry := false
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getCount := 0
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f, tf, _, ns := cmdtesting.NewAPIFactory()
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tf.Printer = &testPrinter{}
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tf.Client = &fake.RESTClient{
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NegotiatedSerializer: ns,
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Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
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switch p, m := req.URL.Path, req.Method; {
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case p == pathRC && m == "GET":
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getCount++
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bodyRC := ioutil.NopCloser(bytes.NewReader(currentRC))
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: bodyRC}, nil
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case p == pathRC && m == "PATCH":
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if firstPatch {
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firstPatch = false
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statusErr := kubeerr.NewConflict(schema.GroupResource{Group: "", Resource: "rc"}, "test-rc", fmt.Errorf("the object has been modified. Please apply at first."))
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bodyBytes, _ := json.Marshal(statusErr)
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bodyErr := ioutil.NopCloser(bytes.NewReader(bodyBytes))
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return &http.Response{StatusCode: http.StatusConflict, Header: defaultHeader(), Body: bodyErr}, nil
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}
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retry = true
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validatePatchApplication(t, req)
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bodyRC := ioutil.NopCloser(bytes.NewReader(currentRC))
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: bodyRC}, nil
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default:
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t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
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return nil, nil
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}
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}),
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}
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tf.Namespace = "test"
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buf := bytes.NewBuffer([]byte{})
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errBuf := bytes.NewBuffer([]byte{})
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cmd := NewCmdApply(f, buf, errBuf)
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cmd.Flags().Set("filename", filenameRC)
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cmd.Flags().Set("output", "name")
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cmd.Run(cmd, []string{})
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if !retry || getCount != 2 {
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t.Fatalf("apply didn't retry when get conflict error")
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}
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// uses the name from the file, not the response
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expectRC := "replicationcontroller/" + nameRC + "\n"
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if buf.String() != expectRC {
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t.Fatalf("unexpected output: %s\nexpected: %s", buf.String(), expectRC)
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}
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}
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func TestApplyNonExistObject(t *testing.T) {
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nameRC, currentRC := readAndAnnotateReplicationController(t, filenameRC)
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pathRC := "/namespaces/test/replicationcontrollers"
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pathNameRC := pathRC + "/" + nameRC
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f, tf, _, ns := cmdtesting.NewAPIFactory()
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tf.Printer = &testPrinter{}
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tf.Client = &fake.RESTClient{
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NegotiatedSerializer: ns,
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Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
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switch p, m := req.URL.Path, req.Method; {
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case p == "/api/v1/namespaces/test" && m == "GET":
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return &http.Response{StatusCode: 404, Header: defaultHeader(), Body: ioutil.NopCloser(bytes.NewReader(nil))}, nil
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case p == pathNameRC && m == "GET":
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return &http.Response{StatusCode: 404, Header: defaultHeader(), Body: ioutil.NopCloser(bytes.NewReader(nil))}, nil
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case p == pathRC && m == "POST":
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bodyRC := ioutil.NopCloser(bytes.NewReader(currentRC))
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return &http.Response{StatusCode: 201, Header: defaultHeader(), Body: bodyRC}, nil
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default:
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t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
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return nil, nil
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}
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}),
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}
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tf.Namespace = "test"
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buf := bytes.NewBuffer([]byte{})
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errBuf := bytes.NewBuffer([]byte{})
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cmd := NewCmdApply(f, buf, errBuf)
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cmd.Flags().Set("filename", filenameRC)
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cmd.Flags().Set("output", "name")
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cmd.Run(cmd, []string{})
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// uses the name from the file, not the response
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expectRC := "replicationcontroller/" + nameRC + "\n"
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if buf.String() != expectRC {
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t.Errorf("unexpected output: %s\nexpected: %s", buf.String(), expectRC)
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}
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}
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func TestApplyMultipleObjectsAsList(t *testing.T) {
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testApplyMultipleObjects(t, true)
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}
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func TestApplyMultipleObjectsAsFiles(t *testing.T) {
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testApplyMultipleObjects(t, false)
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}
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func testApplyMultipleObjects(t *testing.T, asList bool) {
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nameRC, currentRC := readAndAnnotateReplicationController(t, filenameRC)
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pathRC := "/namespaces/test/replicationcontrollers/" + nameRC
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nameSVC, currentSVC := readAndAnnotateService(t, filenameSVC)
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pathSVC := "/namespaces/test/services/" + nameSVC
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f, tf, _, ns := cmdtesting.NewAPIFactory()
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tf.Printer = &testPrinter{}
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tf.Client = &fake.RESTClient{
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NegotiatedSerializer: ns,
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Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
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switch p, m := req.URL.Path, req.Method; {
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case p == pathRC && m == "GET":
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bodyRC := ioutil.NopCloser(bytes.NewReader(currentRC))
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: bodyRC}, nil
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case p == pathRC && m == "PATCH":
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validatePatchApplication(t, req)
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bodyRC := ioutil.NopCloser(bytes.NewReader(currentRC))
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: bodyRC}, nil
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case p == pathSVC && m == "GET":
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bodySVC := ioutil.NopCloser(bytes.NewReader(currentSVC))
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: bodySVC}, nil
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case p == pathSVC && m == "PATCH":
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validatePatchApplication(t, req)
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bodySVC := ioutil.NopCloser(bytes.NewReader(currentSVC))
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: bodySVC}, nil
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default:
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t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
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return nil, nil
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}
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}),
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}
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tf.Namespace = "test"
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buf := bytes.NewBuffer([]byte{})
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errBuf := bytes.NewBuffer([]byte{})
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cmd := NewCmdApply(f, buf, errBuf)
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if asList {
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cmd.Flags().Set("filename", filenameRCSVC)
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} else {
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cmd.Flags().Set("filename", filenameRC)
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cmd.Flags().Set("filename", filenameSVC)
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}
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cmd.Flags().Set("output", "name")
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cmd.Run(cmd, []string{})
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// Names should come from the REST response, NOT the files
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expectRC := "replicationcontroller/" + nameRC + "\n"
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expectSVC := "service/" + nameSVC + "\n"
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// Test both possible orders since output is non-deterministic.
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expectOne := expectRC + expectSVC
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expectTwo := expectSVC + expectRC
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if buf.String() != expectOne && buf.String() != expectTwo {
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t.Fatalf("unexpected output: %s\nexpected: %s OR %s", buf.String(), expectOne, expectTwo)
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}
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}
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