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Merge pull request #18290 from wojtek-t/fast_namespace_deletion 

Support collection deletion in apiserver.
pull/6/head
Jeff Lowdermilk 2015-12-11 13:34:56 -08:00
parent 9c49cdaa6e f28bb68d8c
commit f6686ba3a4
14 changed files with 12299 additions and 8479 deletions
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1013
api/swagger-spec/v1.json
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267
api/swagger-spec/v1beta1.json
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@ -129,6 +129,83 @@
"consumes": [
"*/*"
]
},
{
"type": "unversioned.Status",
"method": "DELETE",
"summary": "delete collection of HorizontalPodAutoscaler",
"nickname": "deletecollectionNamespacedHorizontalPodAutoscaler",
"parameters": [
{
"type": "string",
"paramType": "query",
"name": "pretty",
"description": "If 'true', then the output is pretty printed.",
"required": false,
"allowMultiple": false
},
{
"type": "string",
"paramType": "query",
"name": "labelSelector",
"description": "A selector to restrict the list of returned objects by their labels. Defaults to everything.",
"required": false,
"allowMultiple": false
},
{
"type": "string",
"paramType": "query",
"name": "fieldSelector",
"description": "A selector to restrict the list of returned objects by their fields. Defaults to everything.",
"required": false,
"allowMultiple": false
},
{
"type": "boolean",
"paramType": "query",
"name": "watch",
"description": "Watch for changes to the described resources and return them as a stream of add, update, and remove notifications. Specify resourceVersion.",
"required": false,
"allowMultiple": false
},
{
"type": "string",
"paramType": "query",
"name": "resourceVersion",
"description": "When specified with a watch call, shows changes that occur after that particular version of a resource. Defaults to changes from the beginning of history.",
"required": false,
"allowMultiple": false
},
{
"type": "integer",
"paramType": "query",
"name": "timeoutSeconds",
"description": "Timeout for the list/watch call.",
"required": false,
"allowMultiple": false
},
{
"type": "string",
"paramType": "path",
"name": "namespace",
"description": "object name and auth scope, such as for teams and projects",
"required": true,
"allowMultiple": false
}
],
"responseMessages": [
{
"code": 200,
"message": "OK",
"responseModel": "unversioned.Status"
}
],
"produces": [
"application/json"
],
"consumes": [
"*/*"
]
}
]
},
@ -852,6 +929,83 @@
"consumes": [
"*/*"
]
},
{
"type": "unversioned.Status",
"method": "DELETE",
"summary": "delete collection of Ingress",
"nickname": "deletecollectionNamespacedIngress",
"parameters": [
{
"type": "string",
"paramType": "query",
"name": "pretty",
"description": "If 'true', then the output is pretty printed.",
"required": false,
"allowMultiple": false
},
{
"type": "string",
"paramType": "query",
"name": "labelSelector",
"description": "A selector to restrict the list of returned objects by their labels. Defaults to everything.",
"required": false,
"allowMultiple": false
},
{
"type": "string",
"paramType": "query",
"name": "fieldSelector",
"description": "A selector to restrict the list of returned objects by their fields. Defaults to everything.",
"required": false,
"allowMultiple": false
},
{
"type": "boolean",
"paramType": "query",
"name": "watch",
"description": "Watch for changes to the described resources and return them as a stream of add, update, and remove notifications. Specify resourceVersion.",
"required": false,
"allowMultiple": false
},
{
"type": "string",
"paramType": "query",
"name": "resourceVersion",
"description": "When specified with a watch call, shows changes that occur after that particular version of a resource. Defaults to changes from the beginning of history.",
"required": false,
"allowMultiple": false
},
{
"type": "integer",
"paramType": "query",
"name": "timeoutSeconds",
"description": "Timeout for the list/watch call.",
"required": false,
"allowMultiple": false
},
{
"type": "string",
"paramType": "path",
"name": "namespace",
"description": "object name and auth scope, such as for teams and projects",
"required": true,
"allowMultiple": false
}
],
"responseMessages": [
{
"code": 200,
"message": "OK",
"responseModel": "unversioned.Status"
}
],
"produces": [
"application/json"
],
"consumes": [
"*/*"
]
}
]
},
@ -1575,6 +1729,83 @@
"consumes": [
"*/*"
]
},
{
"type": "unversioned.Status",
"method": "DELETE",
"summary": "delete collection of Job",
"nickname": "deletecollectionNamespacedJob",
"parameters": [
{
"type": "string",
"paramType": "query",
"name": "pretty",
"description": "If 'true', then the output is pretty printed.",
"required": false,
"allowMultiple": false
},
{
"type": "string",
"paramType": "query",
"name": "labelSelector",
"description": "A selector to restrict the list of returned objects by their labels. Defaults to everything.",
"required": false,
"allowMultiple": false
},
{
"type": "string",
"paramType": "query",
"name": "fieldSelector",
"description": "A selector to restrict the list of returned objects by their fields. Defaults to everything.",
"required": false,
"allowMultiple": false
},
{
"type": "boolean",
"paramType": "query",
"name": "watch",
"description": "Watch for changes to the described resources and return them as a stream of add, update, and remove notifications. Specify resourceVersion.",
"required": false,
"allowMultiple": false
},
{
"type": "string",
"paramType": "query",
"name": "resourceVersion",
"description": "When specified with a watch call, shows changes that occur after that particular version of a resource. Defaults to changes from the beginning of history.",
"required": false,
"allowMultiple": false
},
{
"type": "integer",
"paramType": "query",
"name": "timeoutSeconds",
"description": "Timeout for the list/watch call.",
"required": false,
"allowMultiple": false
},
{
"type": "string",
"paramType": "path",
"name": "namespace",
"description": "object name and auth scope, such as for teams and projects",
"required": true,
"allowMultiple": false
}
],
"responseMessages": [
{
"code": 200,
"message": "OK",
"responseModel": "unversioned.Status"
}
],
"produces": [
"application/json"
],
"consumes": [
"*/*"
]
}
]
},
@ -2574,24 +2805,6 @@
}
}
},
"json.WatchEvent": {
"id": "json.WatchEvent",
"properties": {
"type": {
"type": "string",
"description": "the type of watch event; may be ADDED, MODIFIED, DELETED, or ERROR"
},
"object": {
"type": "string",
"description": "the object being watched; will match the type of the resource endpoint or be a Status object if the type is ERROR"
}
}
},
"unversioned.Patch": {
"id": "unversioned.Patch",
"description": "Patch is provided to give a concrete name and type to the Kubernetes PATCH request body.",
"properties": {}
},
"unversioned.Status": {
"id": "unversioned.Status",
"description": "Status is a return value for calls that don't return other objects.",
@ -2675,6 +2888,24 @@
}
}
},
"json.WatchEvent": {
"id": "json.WatchEvent",
"properties": {
"type": {
"type": "string",
"description": "the type of watch event; may be ADDED, MODIFIED, DELETED, or ERROR"
},
"object": {
"type": "string",
"description": "the object being watched; will match the type of the resource endpoint or be a Status object if the type is ERROR"
}
}
},
"unversioned.Patch": {
"id": "unversioned.Patch",
"description": "Patch is provided to give a concrete name and type to the Kubernetes PATCH request body.",
"properties": {}
},
"v1.DeleteOptions": {
"id": "v1.DeleteOptions",
"description": "DeleteOptions may be provided when deleting an API object",

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docs/api-reference/extensions/v1beta1/operations.html
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docs/api-reference/v1/operations.html
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12
pkg/api/rest/rest.go
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@ -125,6 +125,17 @@ func (w GracefulDeleteAdapter) Delete(ctx api.Context, name string, options *api
return w.Deleter.Delete(ctx, name)
}
// CollectionDeleter is an object that can delete a collection
// of RESTful resources.
type CollectionDeleter interface {
// DeleteCollection selects all resources in the storage matching given 'listOptions'
// and deletes them. If 'options' are provided, the resource will attempt to honor
// them or return an invalid request error.
// DeleteCollection may not be atomic - i.e. it may delete some objects and still
// return an error after it. On success, returns a list of deleted objects.
DeleteCollection(ctx api.Context, options *api.DeleteOptions, listOptions *unversioned.ListOptions) (runtime.Object, error)
}
// Creater is an object that can create an instance of a RESTful object.
type Creater interface {
// New returns an empty object that can be used with Create after request data has been put into it.
@ -192,6 +203,7 @@ type StandardStorage interface {
Lister
CreaterUpdater
GracefulDeleter
CollectionDeleter
Watcher
}

22
pkg/apiserver/api_installer.go
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@ -199,6 +199,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
getterWithOptions, isGetterWithOptions := storage.(rest.GetterWithOptions)
deleter, isDeleter := storage.(rest.Deleter)
gracefulDeleter, isGracefulDeleter := storage.(rest.GracefulDeleter)
collectionDeleter, isCollectionDeleter := storage.(rest.CollectionDeleter)
updater, isUpdater := storage.(rest.Updater)
patcher, isPatcher := storage.(rest.Patcher)
watcher, isWatcher := storage.(rest.Watcher)
@ -334,6 +335,8 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
// Add actions at the resource path: /api/apiVersion/resource
actions = appendIf(actions, action{"LIST", resourcePath, resourceParams, namer}, isLister)
actions = appendIf(actions, action{"POST", resourcePath, resourceParams, namer}, isCreater)
actions = appendIf(actions, action{"DELETECOLLECTION", resourcePath, resourceParams, namer}, isCollectionDeleter)
// DEPRECATED
actions = appendIf(actions, action{"WATCHLIST", "watch/" + resourcePath, resourceParams, namer}, allowWatchList)
// Add actions at the item path: /api/apiVersion/resource/{name}
@ -372,6 +375,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
actions = appendIf(actions, action{"LIST", resourcePath, resourceParams, namer}, isLister)
actions = appendIf(actions, action{"POST", resourcePath, resourceParams, namer}, isCreater)
actions = appendIf(actions, action{"DELETECOLLECTION", resourcePath, resourceParams, namer}, isCollectionDeleter)
// DEPRECATED
actions = appendIf(actions, action{"WATCHLIST", "watch/" + resourcePath, resourceParams, namer}, allowWatchList)
@ -567,6 +571,24 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
}
addParams(route, action.Params)
ws.Route(route)
case "DELETECOLLECTION":
doc := "delete collection of " + kind
if hasSubresource {
doc = "delete collection of " + subresource + " of a " + kind
}
route := ws.DELETE(action.Path).To(DeleteCollection(collectionDeleter, isCollectionDeleter, reqScope, admit)).
Filter(m).
Doc(doc).
Param(ws.QueryParameter("pretty", "If 'true', then the output is pretty printed.")).
Operation("deletecollection"+namespaced+kind+strings.Title(subresource)).
Produces(append(storageMeta.ProducesMIMETypes(action.Verb), "application/json")...).
Writes(versionedStatus).
Returns(http.StatusOK, "OK", versionedStatus)
if err := addObjectParams(ws, route, versionedListOptions); err != nil {
return nil, err
}
addParams(route, action.Params)
ws.Route(route)
// TODO: deprecated
case "WATCH": // Watch a resource.
doc := "watch changes to an object of kind " + kind

93
pkg/apiserver/resthandler.go
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@ -730,6 +730,99 @@ func DeleteResource(r rest.GracefulDeleter, checkBody bool, scope RequestScope,
}
}
// DeleteCollection returns a function that will handle a collection deletion
func DeleteCollection(r rest.CollectionDeleter, checkBody bool, scope RequestScope, admit admission.Interface) restful.RouteFunction {
return func(req *restful.Request, res *restful.Response) {
w := res.ResponseWriter
// TODO: we either want to remove timeout or document it (if we document, move timeout out of this function and declare it in api_installer)
timeout := parseTimeout(req.Request.URL.Query().Get("timeout"))
namespace, err := scope.Namer.Namespace(req)
if err != nil {
errorJSON(err, scope.Codec, w)
return
}
ctx := scope.ContextFunc(req)
ctx = api.WithNamespace(ctx, namespace)
if admit != nil && admit.Handles(admission.Delete) {
userInfo, _ := api.UserFrom(ctx)
err = admit.Admit(admission.NewAttributesRecord(nil, scope.Kind.GroupKind(), namespace, "", scope.Resource.GroupResource(), scope.Subresource, admission.Delete, userInfo))
if err != nil {
errorJSON(err, scope.Codec, w)
return
}
}
listOptions := unversioned.ListOptions{}
if err := scope.Codec.DecodeParametersInto(req.Request.URL.Query(), &listOptions); err != nil {
errorJSON(err, scope.Codec, w)
return
}
// transform fields
// TODO: DecodeParametersInto should do this.
if listOptions.FieldSelector.Selector != nil {
fn := func(label, value string) (newLabel, newValue string, err error) {
return scope.Convertor.ConvertFieldLabel(scope.Kind.GroupVersion().String(), scope.Kind.Kind, label, value)
}
if listOptions.FieldSelector.Selector, err = listOptions.FieldSelector.Selector.Transform(fn); err != nil {
// TODO: allow bad request to set field causes based on query parameters
err = errors.NewBadRequest(err.Error())
errorJSON(err, scope.Codec, w)
return
}
}
options := &api.DeleteOptions{}
if checkBody {
body, err := readBody(req.Request)
if err != nil {
errorJSON(err, scope.Codec, w)
return
}
if len(body) > 0 {
if err := scope.Codec.DecodeInto(body, options); err != nil {
errorJSON(err, scope.Codec, w)
return
}
}
}
result, err := finishRequest(timeout, func() (runtime.Object, error) {
return r.DeleteCollection(ctx, options, &listOptions)
})
if err != nil {
errorJSON(err, scope.Codec, w)
return
}
// if the rest.Deleter returns a nil object, fill out a status. Callers may return a valid
// object with the response.
if result == nil {
result = &unversioned.Status{
Status: unversioned.StatusSuccess,
Code: http.StatusOK,
Details: &unversioned.StatusDetails{
Kind: scope.Kind.Kind,
},
}
} else {
// when a non-status response is returned, set the self link
if _, ok := result.(*unversioned.Status); !ok {
if _, err := setListSelfLink(result, req, scope.Namer); err != nil {
errorJSON(err, scope.Codec, w)
return
}
}
}
write(http.StatusOK, scope.Kind.GroupVersion(), scope.Codec, result, w, req.Request)
}
}
// resultFunc is a function that returns a rest result and can be run in a goroutine
type resultFunc func() (runtime.Object, error)

26
pkg/client/unversioned/events.go
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@ -42,6 +42,8 @@ type EventInterface interface {
// Search finds events about the specified object
Search(objOrRef runtime.Object) (*api.EventList, error)
Delete(name string) error
// DeleteCollection deletes a collection of events.
DeleteCollection(options *api.DeleteOptions, listOptions unversioned.ListOptions) error
// Returns the appropriate field selector based on the API version being used to communicate with the server.
// The returned field selector can be used with List and Watch to filter desired events.
GetFieldSelector(involvedObjectName, involvedObjectNamespace, involvedObjectKind, involvedObjectUID *string) fields.Selector
@ -184,6 +186,30 @@ func (e *events) Delete(name string) error {
Error()
}
// DeleteCollection deletes a collection of objects.
func (e *events) DeleteCollection(options *api.DeleteOptions, listOptions unversioned.ListOptions) error {
// TODO: to make this reusable in other client libraries
if options == nil {
return e.client.Delete().
NamespaceIfScoped(e.namespace, len(e.namespace) > 0).
Resource("events").
VersionedParams(&listOptions, api.Scheme).
Do().
Error()
}
body, err := api.Scheme.EncodeToVersion(options, e.client.APIVersion().String())
if err != nil {
return err
}
return e.client.Delete().
NamespaceIfScoped(e.namespace, len(e.namespace) > 0).
Resource("events").
VersionedParams(&listOptions, api.Scheme).
Body(body).
Do().
Error()
}
// Returns the appropriate field selector based on the API version being used to communicate with the server.
// The returned field selector can be used with List and Watch to filter desired events.
func (e *events) GetFieldSelector(involvedObjectName, involvedObjectNamespace, involvedObjectKind, involvedObjectUID *string) fields.Selector {

44
pkg/client/unversioned/testclient/actions.go
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@ -166,6 +166,41 @@ func NewDeleteAction(resource, namespace, name string) DeleteActionImpl {
return action
}
func NewRootDeleteCollectionAction(resource string, opts unversioned.ListOptions) DeleteCollectionActionImpl {
action := DeleteCollectionActionImpl{}
action.Verb = "delete-collection"
action.Resource = resource
labelSelector := opts.LabelSelector.Selector
if labelSelector == nil {
labelSelector = labels.Everything()
}
fieldSelector := opts.FieldSelector.Selector
if fieldSelector == nil {
fieldSelector = fields.Everything()
}
action.ListRestrictions = ListRestrictions{labelSelector, fieldSelector}
return action
}
func NewDeleteCollectionAction(resource, namespace string, opts unversioned.ListOptions) DeleteCollectionActionImpl {
action := DeleteCollectionActionImpl{}
action.Verb = "delete-collection"
action.Resource = resource
action.Namespace = namespace
labelSelector := opts.LabelSelector.Selector
if labelSelector == nil {
labelSelector = labels.Everything()
}
fieldSelector := opts.FieldSelector.Selector
if fieldSelector == nil {
fieldSelector = fields.Everything()
}
action.ListRestrictions = ListRestrictions{labelSelector, fieldSelector}
return action
}
func NewRootWatchAction(resource string, opts unversioned.ListOptions) WatchActionImpl {
action := WatchActionImpl{}
action.Verb = "watch"
@ -363,6 +398,15 @@ func (a DeleteActionImpl) GetName() string {
return a.Name
}
type DeleteCollectionActionImpl struct {
ActionImpl
ListRestrictions ListRestrictions
}
func (a DeleteCollectionActionImpl) GetListRestrictions() ListRestrictions {
return a.ListRestrictions
}
type WatchActionImpl struct {
ActionImpl
WatchRestrictions WatchRestrictions

9
pkg/client/unversioned/testclient/fake_events.go
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@ -110,6 +110,15 @@ func (c *FakeEvents) Delete(name string) error {
return err
}
func (c *FakeEvents) DeleteCollection(options *api.DeleteOptions, listOptions unversioned.ListOptions) error {
action := NewRootDeleteCollectionAction("events", listOptions)
if c.Namespace != "" {
action = NewDeleteCollectionAction("events", c.Namespace, listOptions)
}
_, err := c.Fake.Invokes(action, &api.EventList{})
return err
}
// Watch starts watching for events matching the given selectors.
func (c *FakeEvents) Watch(opts unversioned.ListOptions) (watch.Interface, error) {
action := NewRootWatchAction("events", opts)

12
pkg/controller/namespace/namespace_controller.go
View File

@ -436,17 +436,7 @@ func deletePods(kubeClient client.Interface, ns string, before unversioned.Time)
}
func deleteEvents(kubeClient client.Interface, ns string) error {
items, err := kubeClient.Events(ns).List(unversioned.ListOptions{})
if err != nil {
return err
}
for i := range items.Items {
err := kubeClient.Events(ns).Delete(items.Items[i].Name)
if err != nil && !errors.IsNotFound(err) {
return err
}
}
return nil
return kubeClient.Events(ns).DeleteCollection(nil, unversioned.ListOptions{})
}
func deleteSecrets(kubeClient client.Interface, ns string) error {

2
pkg/controller/namespace/namespace_controller_test.go
View File

@ -109,7 +109,7 @@ func testSyncNamespaceThatIsTerminating(t *testing.T, versions *unversioned.APIV
strings.Join([]string{"list", "resourcequotas", ""}, "-"),
strings.Join([]string{"list", "secrets", ""}, "-"),
strings.Join([]string{"list", "limitranges", ""}, "-"),
strings.Join([]string{"list", "events", ""}, "-"),
strings.Join([]string{"delete-collection", "events", ""}, "-"),
strings.Join([]string{"list", "serviceaccounts", ""}, "-"),
strings.Join([]string{"list", "persistentvolumeclaims", ""}, "-"),
strings.Join([]string{"create", "namespaces", "finalize"}, "-"),

32
pkg/registry/generic/etcd/etcd.go
View File

@ -22,6 +22,7 @@ import (
"k8s.io/kubernetes/pkg/api"
kubeerr "k8s.io/kubernetes/pkg/api/errors"
etcderr "k8s.io/kubernetes/pkg/api/errors/etcd"
"k8s.io/kubernetes/pkg/api/meta"
"k8s.io/kubernetes/pkg/api/rest"
"k8s.io/kubernetes/pkg/api/unversioned"
"k8s.io/kubernetes/pkg/api/validation"
@ -418,6 +419,37 @@ func (e *Etcd) Delete(ctx api.Context, name string, options *api.DeleteOptions)
return e.finalizeDelete(out, true)
}
// DeleteCollection remove all items returned by List with a given ListOptions from etcd.
//
// DeleteCollection is currently NOT atomic. It can happen that only subset of objects
// will be deleted from etcd, and then an error will be returned.
// In case of success, the list of deleted objects will be returned.
//
// TODO: Currently, there is no easy way to remove 'directory' entry from etcd (if we
// are removing all objects of a given type) with the current API (it's technically
// possibly with etcd API, but watch is not delivered correctly then).
// It will be possible to fix it with v3 etcd API.
func (e *Etcd) DeleteCollection(ctx api.Context, options *api.DeleteOptions, listOptions *unversioned.ListOptions) (runtime.Object, error) {
listObj, err := e.List(ctx, listOptions)
if err != nil {
return nil, err
}
items, err := meta.ExtractList(listObj)
if err != nil {
return nil, err
}
for _, item := range items {
accessor, err := meta.Accessor(item)
if err != nil {
return nil, err
}
if _, err := e.Delete(ctx, accessor.Name(), options); err != nil {
return nil, err
}
}
return listObj, nil
}
func (e *Etcd) finalizeDelete(obj runtime.Object, runHooks bool) (runtime.Object, error) {
if runHooks && e.AfterDelete != nil {
if err := e.AfterDelete(obj); err != nil {

90
pkg/registry/generic/etcd/etcd_test.go
View File

@ -25,6 +25,9 @@ import (
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/errors"
"k8s.io/kubernetes/pkg/api/testapi"
"k8s.io/kubernetes/pkg/api/unversioned"
"k8s.io/kubernetes/pkg/fields"
"k8s.io/kubernetes/pkg/labels"
"k8s.io/kubernetes/pkg/registry/generic"
"k8s.io/kubernetes/pkg/runtime"
etcdstorage "k8s.io/kubernetes/pkg/storage/etcd"
@ -90,7 +93,20 @@ func NewTestGenericEtcdRegistry(t *testing.T) (*etcdtesting.EtcdTestServer, *Etc
return path.Join(podPrefix, id), nil
},
ObjectNameFunc: func(obj runtime.Object) (string, error) { return obj.(*api.Pod).Name, nil },
Storage: s,
PredicateFunc: func(label labels.Selector, field fields.Selector) generic.Matcher {
return &generic.SelectionPredicate{
Label: label,
Field: field,
GetAttrs: func(obj runtime.Object) (labels.Set, fields.Set, error) {
pod, ok := obj.(*api.Pod)
if !ok {
return nil, nil, fmt.Errorf("not a pod")
}
return labels.Set(pod.ObjectMeta.Labels), generic.ObjectMetaFieldsSet(pod.ObjectMeta, true), nil
},
}
},
Storage: s,
}
}
@ -366,6 +382,78 @@ func TestEtcdDelete(t *testing.T) {
}
}
func TestEtcdDeleteCollection(t *testing.T) {
podA := &api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo"}}
podB := &api.Pod{ObjectMeta: api.ObjectMeta{Name: "bar"}}
testContext := api.WithNamespace(api.NewContext(), "test")
server, registry := NewTestGenericEtcdRegistry(t)
defer server.Terminate(t)
if _, err := registry.Create(testContext, podA); err != nil {
t.Errorf("Unexpected error: %v", err)
}
if _, err := registry.Create(testContext, podB); err != nil {
t.Errorf("Unexpected error: %v", err)
}
// Delete all pods.
deleted, err := registry.DeleteCollection(testContext, nil, &unversioned.ListOptions{})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
deletedPods := deleted.(*api.PodList)
if len(deletedPods.Items) != 2 {
t.Errorf("Unexpected number of pods deleted: %d, expected: 2", len(deletedPods.Items))
}
if _, err := registry.Get(testContext, podA.Name); !errors.IsNotFound(err) {
t.Errorf("Unexpected error: %v", err)
}
if _, err := registry.Get(testContext, podB.Name); !errors.IsNotFound(err) {
t.Errorf("Unexpected error: %v", err)
}
}
// Test whether objects deleted with DeleteCollection are correctly delivered
// to watchers.
func TestEtcdDeleteCollectionWithWatch(t *testing.T) {
podA := &api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo"}}
testContext := api.WithNamespace(api.NewContext(), "test")
server, registry := NewTestGenericEtcdRegistry(t)
defer server.Terminate(t)
objCreated, err := registry.Create(testContext, podA)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
podCreated := objCreated.(*api.Pod)
watcher, err := registry.WatchPredicate(testContext, setMatcher{sets.NewString("foo")}, podCreated.ResourceVersion)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if _, err := registry.DeleteCollection(testContext, nil, &unversioned.ListOptions{}); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
got, open := <-watcher.ResultChan()
if !open {
t.Errorf("Unexpected channel close")
} else {
if got.Type != "DELETED" {
t.Errorf("Unexpected event type: %s", got.Type)
}
gotObject := got.Object.(*api.Pod)
gotObject.ResourceVersion = podCreated.ResourceVersion
if e, a := podCreated, gotObject; !reflect.DeepEqual(e, a) {
t.Errorf("Expected: %#v, got: %#v", e, a)
}
}
}
func TestEtcdWatch(t *testing.T) {
testContext := api.WithNamespace(api.NewContext(), "test")
noNamespaceContext := api.NewContext()