Exemplo n.º 1
0
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
}
Exemplo n.º 2
0
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)
		}
	}
}
Exemplo n.º 3
0
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)
	}
}
Exemplo n.º 4
0
// 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
}
Exemplo n.º 5
0
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)
			}
		}
	}
}
Exemplo n.º 6
0
// 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
}
Exemplo n.º 7
0
	"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
Exemplo n.º 8
0
// 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
}
Exemplo n.º 9
0
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
}
Exemplo n.º 10
0
// 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)
				}
			}
		}
	}
}
Exemplo n.º 11
0
func (f *ring0Factory) LabelsForObject(object runtime.Object) (map[string]string, error) {
	return meta.NewAccessor().Labels(object)
}