func newExternalScheme() (*runtime.Scheme, meta.RESTMapper, runtime.Codec) {
scheme := runtime.NewScheme()
scheme.AddKnownTypeWithName(InternalGV.WithKind("Type"), &InternalType{})
scheme.AddKnownTypeWithName(UnlikelyGV.WithKind("Type"), &ExternalType{})
//This tests that kubectl will not confuse the external scheme with the internal scheme, even when they accidentally have versions of the same name.
scheme.AddKnownTypeWithName(ValidVersionGV.WithKind("Type"), &ExternalType2{})
codecs := serializer.NewCodecFactory(scheme)
codec := codecs.LegacyCodec(UnlikelyGV)
mapper := meta.NewDefaultRESTMapper([]schema.GroupVersion{UnlikelyGV, ValidVersionGV}, func(version schema.GroupVersion) (*meta.VersionInterfaces, error) {
return &meta.VersionInterfaces{
ObjectConvertor: scheme,
MetadataAccessor: meta.NewAccessor(),
}, versionErrIfFalse(version == ValidVersionGV || version == UnlikelyGV)
})
for _, gv := range []schema.GroupVersion{UnlikelyGV, ValidVersionGV} {
for kind := range scheme.KnownTypes(gv) {
gvk := gv.WithKind(kind)
scope := meta.RESTScopeNamespace
mapper.Add(gvk, scope)
}
}
return scheme, mapper, codec
}
func TestResourceVersionerOfAPI(t *testing.T) {
type T struct {
runtime.Object
Expected string
}
testCases := map[string]T{
"empty api object": {&MyAPIObject{}, ""},
"api object with version": {&MyAPIObject{TypeMeta: InternalTypeMeta{ResourceVersion: "1"}}, "1"},
"pointer to api object with version": {&MyAPIObject{TypeMeta: InternalTypeMeta{ResourceVersion: "1"}}, "1"},
}
versioning := meta.NewAccessor()
for key, testCase := range testCases {
actual, err := versioning.ResourceVersion(testCase.Object)
if err != nil {
t.Errorf("%s: unexpected error %#v", key, err)
}
if actual != testCase.Expected {
t.Errorf("%s: expected %v, got %v", key, testCase.Expected, actual)
}
}
failingCases := map[string]struct {
runtime.Object
Expected string
}{
"not a valid object to try": {&MyIncorrectlyMarkedAsAPIObject{}, "1"},
}
for key, testCase := range failingCases {
_, err := versioning.ResourceVersion(testCase.Object)
if err == nil {
t.Errorf("%s: expected error, got nil", key)
}
}
setCases := map[string]struct {
runtime.Object
Expected string
}{
"pointer to api object with version": {&MyAPIObject{TypeMeta: InternalTypeMeta{ResourceVersion: "1"}}, "1"},
}
for key, testCase := range setCases {
if err := versioning.SetResourceVersion(testCase.Object, "5"); err != nil {
t.Errorf("%s: unexpected error %#v", key, err)
}
actual, err := versioning.ResourceVersion(testCase.Object)
if err != nil {
t.Errorf("%s: unexpected error %#v", key, err)
}
if actual != "5" {
t.Errorf("%s: expected %v, got %v", key, "5", actual)
}
}
}
func makeInterfacesFor(versionList []schema.GroupVersion) func(version schema.GroupVersion) (*meta.VersionInterfaces, error) {
accessor := meta.NewAccessor()
return func(version schema.GroupVersion) (*meta.VersionInterfaces, error) {
for ix := range versionList {
if versionList[ix].String() == version.String() {
return &meta.VersionInterfaces{
ObjectConvertor: thirdpartyresourcedata.NewThirdPartyObjectConverter(api.Scheme),
MetadataAccessor: accessor,
}, nil
}
}
return nil, fmt.Errorf("unsupported storage version: %s (valid: %v)", version, versionList)
}
}
// Enable enables group versions that are allowed, adds methods to the scheme, etc.
func (gmf *GroupMetaFactory) Enable(m *registered.APIRegistrationManager, scheme *runtime.Scheme) error {
externalVersions := []schema.GroupVersion{}
for _, v := range gmf.prioritizedVersionList {
if !m.IsAllowedVersion(v) {
continue
}
externalVersions = append(externalVersions, v)
if err := m.EnableVersions(v); err != nil {
return err
}
gmf.VersionArgs[v.Version].AddToScheme(scheme)
}
if len(externalVersions) == 0 {
glog.V(4).Infof("No version is registered for group %v", gmf.GroupArgs.GroupName)
return nil
}
if gmf.GroupArgs.AddInternalObjectsToScheme != nil {
gmf.GroupArgs.AddInternalObjectsToScheme(scheme)
}
preferredExternalVersion := externalVersions[0]
accessor := meta.NewAccessor()
groupMeta := &apimachinery.GroupMeta{
GroupVersion: preferredExternalVersion,
GroupVersions: externalVersions,
SelfLinker: runtime.SelfLinker(accessor),
}
for _, v := range externalVersions {
gvf := gmf.VersionArgs[v.Version]
if err := groupMeta.AddVersionInterfaces(
schema.GroupVersion{Group: gvf.GroupName, Version: gvf.VersionName},
&meta.VersionInterfaces{
ObjectConvertor: scheme,
MetadataAccessor: accessor,
},
); err != nil {
return err
}
}
groupMeta.InterfacesFor = groupMeta.DefaultInterfacesFor
groupMeta.RESTMapper = gmf.newRESTMapper(scheme, externalVersions, groupMeta)
if err := m.RegisterGroup(*groupMeta); err != nil {
return err
}
return nil
}
func TestTypeMetaSelfLinker(t *testing.T) {
table := map[string]struct {
obj runtime.Object
expect string
try string
succeed bool
}{
"normal": {
obj: &MyAPIObject{TypeMeta: InternalTypeMeta{SelfLink: "foobar"}},
expect: "foobar",
try: "newbar",
succeed: true,
},
"fail": {
obj: &MyIncorrectlyMarkedAsAPIObject{},
succeed: false,
},
}
linker := runtime.SelfLinker(meta.NewAccessor())
for name, item := range table {
got, err := linker.SelfLink(item.obj)
if e, a := item.succeed, err == nil; e != a {
t.Errorf("%v: expected %v, got %v", name, e, a)
}
if e, a := item.expect, got; item.succeed && e != a {
t.Errorf("%v: expected %v, got %v", name, e, a)
}
err = linker.SetSelfLink(item.obj, item.try)
if e, a := item.succeed, err == nil; e != a {
t.Errorf("%v: expected %v, got %v", name, e, a)
}
if item.succeed {
got, err := linker.SelfLink(item.obj)
if err != nil {
t.Errorf("%v: expected no err, got %v", name, err)
}
if e, a := item.try, got; e != a {
t.Errorf("%v: expected %v, got %v", name, e, a)
}
}
}
}
// Admit admits resources into cluster that do not violate any defined LimitRange in the namespace
func (l *limitRanger) Admit(a admission.Attributes) (err error) {
if !l.actions.SupportsAttributes(a) {
return nil
}
obj := a.GetObject()
name := "Unknown"
if obj != nil {
name, _ = meta.NewAccessor().Name(obj)
if len(name) == 0 {
name, _ = meta.NewAccessor().GenerateName(obj)
}
}
items, err := l.lister.LimitRanges(a.GetNamespace()).List(labels.Everything())
if err != nil {
return admission.NewForbidden(a, fmt.Errorf("unable to %s %v at this time because there was an error enforcing limit ranges", a.GetOperation(), a.GetResource()))
}
// if there are no items held in our indexer, check our live-lookup LRU, if that misses, do the live lookup to prime it.
if len(items) == 0 {
lruItemObj, ok := l.liveLookupCache.Get(a.GetNamespace())
if !ok || lruItemObj.(liveLookupEntry).expiry.Before(time.Now()) {
// TODO: If there are multiple operations at the same time and cache has just expired,
// this may cause multiple List operations being issued at the same time.
// If there is already in-flight List() for a given namespace, we should wait until
// it is finished and cache is updated instead of doing the same, also to avoid
// throttling - see #22422 for details.
liveList, err := l.client.Core().LimitRanges(a.GetNamespace()).List(api.ListOptions{})
if err != nil {
return admission.NewForbidden(a, err)
}
newEntry := liveLookupEntry{expiry: time.Now().Add(l.liveTTL)}
for i := range liveList.Items {
newEntry.items = append(newEntry.items, &liveList.Items[i])
}
l.liveLookupCache.Add(a.GetNamespace(), newEntry)
lruItemObj = newEntry
}
lruEntry := lruItemObj.(liveLookupEntry)
for i := range lruEntry.items {
items = append(items, lruEntry.items[i])
}
}
// ensure it meets each prescribed min/max
for i := range items {
limitRange := items[i]
if !l.actions.SupportsLimit(limitRange) {
continue
}
err = l.actions.Limit(limitRange, a.GetResource().Resource, a.GetObject())
if err != nil {
return admission.NewForbidden(a, err)
}
}
return nil
}
"github.com/golang/glog"
"k8s.io/apimachinery/pkg/api/meta"
"k8s.io/apimachinery/pkg/apimachinery"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/util/sets"
core "k8s.io/kubernetes/federation/apis/core"
core_v1 "k8s.io/kubernetes/federation/apis/core/v1"
"k8s.io/kubernetes/pkg/api"
)
const importPrefix = "k8s.io/kubernetes/pkg/api"
var accessor = meta.NewAccessor()
// availableVersions lists all known external versions for this group from most preferred to least preferred
var availableVersions = []schema.GroupVersion{core_v1.SchemeGroupVersion}
func init() {
api.Registry.RegisterVersions(availableVersions)
externalVersions := []schema.GroupVersion{}
for _, v := range availableVersions {
if api.Registry.IsAllowedVersion(v) {
externalVersions = append(externalVersions, v)
}
}
if len(externalVersions) == 0 {
glog.V(4).Infof("No version is registered for group %v", core.GroupName)
return
// VersionInterfaces provides an object converter and metadata
// accessor appropriate for use with unstructured objects.
func VersionInterfaces(schema.GroupVersion) (*meta.VersionInterfaces, error) {
return &meta.VersionInterfaces{
ObjectConvertor: &unstructured.UnstructuredObjectConverter{},
MetadataAccessor: meta.NewAccessor(),
}, nil
}
func visitToPatch(
originalObj runtime.Object,
updates *resource.Info,
mapper meta.RESTMapper,
resourceMapper *resource.Mapper,
encoder runtime.Encoder,
out, errOut io.Writer,
defaultVersion schema.GroupVersion,
results *editResults,
file string,
) error {
patchVisitor := resource.NewFlattenListVisitor(updates, resourceMapper)
err := patchVisitor.Visit(func(info *resource.Info, incomingErr error) error {
currOriginalObj := originalObj
// if we're editing a list, then navigate the list to find the item that we're currently trying to edit
if meta.IsListType(originalObj) {
currOriginalObj = nil
editObjUID, err := meta.NewAccessor().UID(info.Object)
if err != nil {
return err
}
listItems, err := meta.ExtractList(originalObj)
if err != nil {
return err
}
// iterate through the list to find the item with the matching UID
for i := range listItems {
originalObjUID, err := meta.NewAccessor().UID(listItems[i])
if err != nil {
return err
}
if editObjUID == originalObjUID {
currOriginalObj = listItems[i]
break
}
}
if currOriginalObj == nil {
return fmt.Errorf("no original object found for %#v", info.Object)
}
}
originalSerialization, err := runtime.Encode(encoder, currOriginalObj)
if err != nil {
return err
}
editedSerialization, err := runtime.Encode(encoder, info.Object)
if err != nil {
return err
}
// compute the patch on a per-item basis
// use strategic merge to create a patch
originalJS, err := yaml.ToJSON(originalSerialization)
if err != nil {
return err
}
editedJS, err := yaml.ToJSON(editedSerialization)
if err != nil {
return err
}
if reflect.DeepEqual(originalJS, editedJS) {
// no edit, so just skip it.
cmdutil.PrintSuccess(mapper, false, out, info.Mapping.Resource, info.Name, false, "skipped")
return nil
}
preconditions := []strategicpatch.PreconditionFunc{strategicpatch.RequireKeyUnchanged("apiVersion"),
strategicpatch.RequireKeyUnchanged("kind"), strategicpatch.RequireMetadataKeyUnchanged("name")}
patch, err := strategicpatch.CreateTwoWayMergePatch(originalJS, editedJS, currOriginalObj, preconditions...)
if err != nil {
glog.V(4).Infof("Unable to calculate diff, no merge is possible: %v", err)
if strategicpatch.IsPreconditionFailed(err) {
return fmt.Errorf("%s", "At least one of apiVersion, kind and name was changed")
}
return err
}
results.version = defaultVersion
patched, err := resource.NewHelper(info.Client, info.Mapping).Patch(info.Namespace, info.Name, types.StrategicMergePatchType, patch)
if err != nil {
fmt.Fprintln(out, results.addError(err, info))
return nil
}
info.Refresh(patched, true)
cmdutil.PrintSuccess(mapper, false, out, info.Mapping.Resource, info.Name, false, "edited")
return nil
})
return err
}
// Verifies that AddGroupVersions works as expected.
func TestInstallAPIGroups(t *testing.T) {
etcdserver, config, assert := setUp(t)
defer etcdserver.Terminate(t)
config.LegacyAPIGroupPrefixes = sets.NewString("/apiPrefix")
config.DiscoveryAddresses = DefaultDiscoveryAddresses{DefaultAddress: "ExternalAddress"}
s, err := config.SkipComplete().New()
if err != nil {
t.Fatalf("Error in bringing up the server: %v", err)
}
testAPI := func(gv schema.GroupVersion) APIGroupInfo {
getter, noVerbs := testGetterStorage{}, testNoVerbsStorage{}
scheme := runtime.NewScheme()
scheme.AddKnownTypeWithName(gv.WithKind("Getter"), getter.New())
scheme.AddKnownTypeWithName(gv.WithKind("NoVerb"), noVerbs.New())
scheme.AddKnownTypes(v1.SchemeGroupVersion,
&v1.ListOptions{},
&v1.DeleteOptions{},
&metav1.ExportOptions{},
&metav1.Status{},
)
interfacesFor := func(version schema.GroupVersion) (*meta.VersionInterfaces, error) {
return &meta.VersionInterfaces{
ObjectConvertor: scheme,
MetadataAccessor: meta.NewAccessor(),
}, nil
}
mapper := api.NewDefaultRESTMapperFromScheme([]schema.GroupVersion{gv}, interfacesFor, "", sets.NewString(), sets.NewString(), scheme)
groupMeta := apimachinery.GroupMeta{
GroupVersion: gv,
GroupVersions: []schema.GroupVersion{gv},
RESTMapper: mapper,
InterfacesFor: interfacesFor,
}
return APIGroupInfo{
GroupMeta: groupMeta,
VersionedResourcesStorageMap: map[string]map[string]rest.Storage{
gv.Version: {
"getter": &testGetterStorage{Version: gv.Version},
"noverbs": &testNoVerbsStorage{Version: gv.Version},
},
},
OptionsExternalVersion: &schema.GroupVersion{Version: "v1"},
ParameterCodec: api.ParameterCodec,
NegotiatedSerializer: api.Codecs,
Scheme: scheme,
}
}
apis := []APIGroupInfo{
testAPI(schema.GroupVersion{Group: "", Version: "v1"}),
testAPI(schema.GroupVersion{Group: "extensions", Version: "v1"}),
testAPI(schema.GroupVersion{Group: "batch", Version: "v1"}),
}
err = s.InstallLegacyAPIGroup("/apiPrefix", &apis[0])
assert.NoError(err)
groupPaths := []string{
config.LegacyAPIGroupPrefixes.List()[0], // /apiPrefix
}
for _, api := range apis[1:] {
err = s.InstallAPIGroup(&api)
assert.NoError(err)
groupPaths = append(groupPaths, APIGroupPrefix+"/"+api.GroupMeta.GroupVersion.Group) // /apis/<group>
}
server := httptest.NewServer(s.InsecureHandler)
defer server.Close()
for i := range apis {
// should serve APIGroup at group path
info := &apis[i]
path := groupPaths[i]
resp, err := http.Get(server.URL + path)
if err != nil {
t.Errorf("[%d] unexpected error getting path %q path: %v", i, path, err)
continue
}
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
t.Errorf("[%d] unexpected error reading body at path %q: %v", i, path, err)
continue
}
t.Logf("[%d] json at %s: %s", i, path, string(body))
if i == 0 {
// legacy API returns APIVersions
group := metav1.APIVersions{}
err = json.Unmarshal(body, &group)
if err != nil {
t.Errorf("[%d] unexpected error parsing json body at path %q: %v", i, path, err)
continue
}
} else {
// API groups return APIGroup
group := metav1.APIGroup{}
err = json.Unmarshal(body, &group)
if err != nil {
t.Errorf("[%d] unexpected error parsing json body at path %q: %v", i, path, err)
continue
}
if got, expected := group.Name, info.GroupMeta.GroupVersion.Group; got != expected {
t.Errorf("[%d] unexpected group name at path %q: got=%q expected=%q", i, path, got, expected)
continue
}
if got, expected := group.PreferredVersion.Version, info.GroupMeta.GroupVersion.Version; got != expected {
t.Errorf("[%d] unexpected group version at path %q: got=%q expected=%q", i, path, got, expected)
continue
}
}
// should serve APIResourceList at group path + /<group-version>
path = path + "/" + info.GroupMeta.GroupVersion.Version
resp, err = http.Get(server.URL + path)
if err != nil {
t.Errorf("[%d] unexpected error getting path %q path: %v", i, path, err)
continue
}
body, err = ioutil.ReadAll(resp.Body)
if err != nil {
t.Errorf("[%d] unexpected error reading body at path %q: %v", i, path, err)
continue
}
t.Logf("[%d] json at %s: %s", i, path, string(body))
resources := metav1.APIResourceList{}
err = json.Unmarshal(body, &resources)
if err != nil {
t.Errorf("[%d] unexpected error parsing json body at path %q: %v", i, path, err)
continue
}
if got, expected := resources.GroupVersion, info.GroupMeta.GroupVersion.String(); got != expected {
t.Errorf("[%d] unexpected groupVersion at path %q: got=%q expected=%q", i, path, got, expected)
continue
}
// the verbs should match the features of resources
for _, r := range resources.APIResources {
switch r.Name {
case "getter":
if got, expected := sets.NewString([]string(r.Verbs)...), sets.NewString("get"); !got.Equal(expected) {
t.Errorf("[%d] unexpected verbs for resource %s/%s: got=%v expected=%v", i, resources.GroupVersion, r.Name, got, expected)
}
case "noverbs":
if r.Verbs == nil {
t.Errorf("[%d] unexpected nil verbs slice. Expected: []string{}", i)
}
if got, expected := sets.NewString([]string(r.Verbs)...), sets.NewString(); !got.Equal(expected) {
t.Errorf("[%d] unexpected verbs for resource %s/%s: got=%v expected=%v", i, resources.GroupVersion, r.Name, got, expected)
}
}
}
}
}
func (f *ring0Factory) LabelsForObject(object runtime.Object) (map[string]string, error) {
return meta.NewAccessor().Labels(object)
}