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Chao Xu
2016-09-28 15:08:08 -07:00
parent 6631b2769f
commit a6d206121d
2242 changed files with 0 additions and 541007 deletions
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289
dynamic/client.go Normal file
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/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
// Package dynamic provides a client interface to arbitrary Kubernetes
// APIs that exposes common high level operations and exposes common
// metadata.
package dynamic
import (
"encoding/json"
"errors"
"io"
"net/url"
"strings"
"k8s.io/client-go/1.5/pkg/api"
"k8s.io/client-go/1.5/pkg/api/unversioned"
"k8s.io/client-go/1.5/pkg/api/v1"
"k8s.io/client-go/1.5/pkg/conversion/queryparams"
"k8s.io/client-go/1.5/pkg/runtime"
"k8s.io/client-go/1.5/pkg/runtime/serializer"
"k8s.io/client-go/1.5/pkg/util/flowcontrol"
"k8s.io/client-go/1.5/pkg/watch"
"k8s.io/client-go/1.5/rest"
)
// Client is a Kubernetes client that allows you to access metadata
// and manipulate metadata of a Kubernetes API group.
type Client struct {
cl *rest.RESTClient
parameterCodec runtime.ParameterCodec
}
// NewClient returns a new client based on the passed in config. The
// codec is ignored, as the dynamic client uses it's own codec.
func NewClient(conf *rest.Config) (*Client, error) {
// avoid changing the original config
confCopy := *conf
conf = &confCopy
contentConfig := ContentConfig()
contentConfig.GroupVersion = conf.GroupVersion
if conf.NegotiatedSerializer != nil {
contentConfig.NegotiatedSerializer = conf.NegotiatedSerializer
}
conf.ContentConfig = contentConfig
if conf.APIPath == "" {
conf.APIPath = "/api"
}
if len(conf.UserAgent) == 0 {
conf.UserAgent = rest.DefaultKubernetesUserAgent()
}
cl, err := rest.RESTClientFor(conf)
if err != nil {
return nil, err
}
return &Client{cl: cl}, nil
}
// GetRateLimiter returns rate limier.
func (c *Client) GetRateLimiter() flowcontrol.RateLimiter {
return c.cl.GetRateLimiter()
}
// Resource returns an API interface to the specified resource for this client's
// group and version. If resource is not a namespaced resource, then namespace
// is ignored. The ResourceClient inherits the parameter codec of c.
func (c *Client) Resource(resource *unversioned.APIResource, namespace string) *ResourceClient {
return &ResourceClient{
cl: c.cl,
resource: resource,
ns: namespace,
parameterCodec: c.parameterCodec,
}
}
// ParameterCodec returns a client with the provided parameter codec.
func (c *Client) ParameterCodec(parameterCodec runtime.ParameterCodec) *Client {
return &Client{
cl: c.cl,
parameterCodec: parameterCodec,
}
}
// ResourceClient is an API interface to a specific resource under a
// dynamic client.
type ResourceClient struct {
cl *rest.RESTClient
resource *unversioned.APIResource
ns string
parameterCodec runtime.ParameterCodec
}
// List returns a list of objects for this resource.
func (rc *ResourceClient) List(opts runtime.Object) (runtime.Object, error) {
parameterEncoder := rc.parameterCodec
if parameterEncoder == nil {
parameterEncoder = defaultParameterEncoder
}
return rc.cl.Get().
NamespaceIfScoped(rc.ns, rc.resource.Namespaced).
Resource(rc.resource.Name).
VersionedParams(opts, parameterEncoder).
Do().
Get()
}
// Get gets the resource with the specified name.
func (rc *ResourceClient) Get(name string) (*runtime.Unstructured, error) {
result := new(runtime.Unstructured)
err := rc.cl.Get().
NamespaceIfScoped(rc.ns, rc.resource.Namespaced).
Resource(rc.resource.Name).
Name(name).
Do().
Into(result)
return result, err
}
// Delete deletes the resource with the specified name.
func (rc *ResourceClient) Delete(name string, opts *v1.DeleteOptions) error {
return rc.cl.Delete().
NamespaceIfScoped(rc.ns, rc.resource.Namespaced).
Resource(rc.resource.Name).
Name(name).
Body(opts).
Do().
Error()
}
// DeleteCollection deletes a collection of objects.
func (rc *ResourceClient) DeleteCollection(deleteOptions *v1.DeleteOptions, listOptions runtime.Object) error {
parameterEncoder := rc.parameterCodec
if parameterEncoder == nil {
parameterEncoder = defaultParameterEncoder
}
return rc.cl.Delete().
NamespaceIfScoped(rc.ns, rc.resource.Namespaced).
Resource(rc.resource.Name).
VersionedParams(listOptions, parameterEncoder).
Body(deleteOptions).
Do().
Error()
}
// Create creates the provided resource.
func (rc *ResourceClient) Create(obj *runtime.Unstructured) (*runtime.Unstructured, error) {
result := new(runtime.Unstructured)
err := rc.cl.Post().
NamespaceIfScoped(rc.ns, rc.resource.Namespaced).
Resource(rc.resource.Name).
Body(obj).
Do().
Into(result)
return result, err
}
// Update updates the provided resource.
func (rc *ResourceClient) Update(obj *runtime.Unstructured) (*runtime.Unstructured, error) {
result := new(runtime.Unstructured)
if len(obj.GetName()) == 0 {
return result, errors.New("object missing name")
}
err := rc.cl.Put().
NamespaceIfScoped(rc.ns, rc.resource.Namespaced).
Resource(rc.resource.Name).
Name(obj.GetName()).
Body(obj).
Do().
Into(result)
return result, err
}
// Watch returns a watch.Interface that watches the resource.
func (rc *ResourceClient) Watch(opts runtime.Object) (watch.Interface, error) {
parameterEncoder := rc.parameterCodec
if parameterEncoder == nil {
parameterEncoder = defaultParameterEncoder
}
return rc.cl.Get().
Prefix("watch").
NamespaceIfScoped(rc.ns, rc.resource.Namespaced).
Resource(rc.resource.Name).
VersionedParams(opts, parameterEncoder).
Watch()
}
func (rc *ResourceClient) Patch(name string, pt api.PatchType, data []byte) (*runtime.Unstructured, error) {
result := new(runtime.Unstructured)
err := rc.cl.Patch(pt).
NamespaceIfScoped(rc.ns, rc.resource.Namespaced).
Resource(rc.resource.Name).
Name(name).
Body(data).
Do().
Into(result)
return result, err
}
// dynamicCodec is a codec that wraps the standard unstructured codec
// with special handling for Status objects.
type dynamicCodec struct{}
func (dynamicCodec) Decode(data []byte, gvk *unversioned.GroupVersionKind, obj runtime.Object) (runtime.Object, *unversioned.GroupVersionKind, error) {
obj, gvk, err := runtime.UnstructuredJSONScheme.Decode(data, gvk, obj)
if err != nil {
return nil, nil, err
}
if _, ok := obj.(*unversioned.Status); !ok && strings.ToLower(gvk.Kind) == "status" {
obj = &unversioned.Status{}
err := json.Unmarshal(data, obj)
if err != nil {
return nil, nil, err
}
}
return obj, gvk, nil
}
func (dynamicCodec) Encode(obj runtime.Object, w io.Writer) error {
return runtime.UnstructuredJSONScheme.Encode(obj, w)
}
// ContentConfig returns a rest.ContentConfig for dynamic types.
func ContentConfig() rest.ContentConfig {
// TODO: it's questionable that this should be using anything other than unstructured schema and JSON
codec := dynamicCodec{}
streamingInfo, _ := api.Codecs.StreamingSerializerForMediaType("application/json;stream=watch", nil)
return rest.ContentConfig{
AcceptContentTypes: runtime.ContentTypeJSON,
ContentType: runtime.ContentTypeJSON,
NegotiatedSerializer: serializer.NegotiatedSerializerWrapper(runtime.SerializerInfo{Serializer: codec}, streamingInfo),
}
}
// paramaterCodec is a codec converts an API object to query
// parameters without trying to convert to the target version.
type parameterCodec struct{}
func (parameterCodec) EncodeParameters(obj runtime.Object, to unversioned.GroupVersion) (url.Values, error) {
return queryparams.Convert(obj)
}
func (parameterCodec) DecodeParameters(parameters url.Values, from unversioned.GroupVersion, into runtime.Object) error {
return errors.New("DecodeParameters not implemented on dynamic parameterCodec")
}
var defaultParameterEncoder runtime.ParameterCodec = parameterCodec{}
type versionedParameterEncoderWithV1Fallback struct{}
func (versionedParameterEncoderWithV1Fallback) EncodeParameters(obj runtime.Object, to unversioned.GroupVersion) (url.Values, error) {
ret, err := api.ParameterCodec.EncodeParameters(obj, to)
if err != nil && runtime.IsNotRegisteredError(err) {
// fallback to v1
return api.ParameterCodec.EncodeParameters(obj, v1.SchemeGroupVersion)
}
return ret, err
}
func (versionedParameterEncoderWithV1Fallback) DecodeParameters(parameters url.Values, from unversioned.GroupVersion, into runtime.Object) error {
return errors.New("DecodeParameters not implemented on versionedParameterEncoderWithV1Fallback")
}
// VersionedParameterEncoderWithV1Fallback is useful for encoding query
// parameters for thirdparty resources. It tries to convert object to the
// specified version before converting it to query parameters, and falls back to
// converting to v1 if the object is not registered in the specified version.
// For the record, currently API server always treats query parameters sent to a
// thirdparty resource endpoint as v1.
var VersionedParameterEncoderWithV1Fallback runtime.ParameterCodec = versionedParameterEncoderWithV1Fallback{}

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/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package dynamic
import (
"sync"
"k8s.io/client-go/1.5/pkg/api"
"k8s.io/client-go/1.5/pkg/api/meta"
"k8s.io/client-go/1.5/pkg/api/unversioned"
"k8s.io/client-go/1.5/pkg/runtime"
"k8s.io/client-go/1.5/pkg/runtime/serializer"
"k8s.io/client-go/1.5/rest"
)
// ClientPool manages a pool of dynamic clients.
type ClientPool interface {
// ClientForGroupVersionKind returns a client configured for the specified groupVersionResource.
// Resource may be empty.
ClientForGroupVersionResource(resource unversioned.GroupVersionResource) (*Client, error)
// ClientForGroupVersionKind returns a client configured for the specified groupVersionKind.
// Kind may be empty.
ClientForGroupVersionKind(kind unversioned.GroupVersionKind) (*Client, error)
}
// APIPathResolverFunc knows how to convert a groupVersion to its API path. The Kind field is
// optional.
type APIPathResolverFunc func(kind unversioned.GroupVersionKind) string
// LegacyAPIPathResolverFunc can resolve paths properly with the legacy API.
func LegacyAPIPathResolverFunc(kind unversioned.GroupVersionKind) string {
if len(kind.Group) == 0 {
return "/api"
}
return "/apis"
}
// clientPoolImpl implements ClientPool and caches clients for the resource group versions
// is asked to retrieve. This type is thread safe.
type clientPoolImpl struct {
lock sync.RWMutex
config *rest.Config
clients map[unversioned.GroupVersion]*Client
apiPathResolverFunc APIPathResolverFunc
mapper meta.RESTMapper
}
// NewClientPool returns a ClientPool from the specified config. It reuses clients for the the same
// group version. It is expected this type may be wrapped by specific logic that special cases certain
// resources or groups.
func NewClientPool(config *rest.Config, mapper meta.RESTMapper, apiPathResolverFunc APIPathResolverFunc) ClientPool {
confCopy := *config
return &clientPoolImpl{
config: &confCopy,
clients: map[unversioned.GroupVersion]*Client{},
apiPathResolverFunc: apiPathResolverFunc,
mapper: mapper,
}
}
// ClientForGroupVersionResource uses the provided RESTMapper to identify the appropriate resource. Resource may
// be empty. If no matching kind is found the underlying client for that group is still returned.
func (c *clientPoolImpl) ClientForGroupVersionResource(resource unversioned.GroupVersionResource) (*Client, error) {
kinds, err := c.mapper.KindsFor(resource)
if err != nil {
if meta.IsNoMatchError(err) {
return c.ClientForGroupVersionKind(unversioned.GroupVersionKind{Group: resource.Group, Version: resource.Version})
}
return nil, err
}
return c.ClientForGroupVersionKind(kinds[0])
}
// ClientForGroupVersion returns a client for the specified groupVersion, creates one if none exists. Kind
// in the GroupVersionKind may be empty.
func (c *clientPoolImpl) ClientForGroupVersionKind(kind unversioned.GroupVersionKind) (*Client, error) {
c.lock.Lock()
defer c.lock.Unlock()
gv := kind.GroupVersion()
// do we have a client already configured?
if existingClient, found := c.clients[gv]; found {
return existingClient, nil
}
// avoid changing the original config
confCopy := *c.config
conf := &confCopy
// we need to set the api path based on group version, if no group, default to legacy path
conf.APIPath = c.apiPathResolverFunc(kind)
// we need to make a client
conf.GroupVersion = &gv
if conf.NegotiatedSerializer == nil {
streamingInfo, _ := api.Codecs.StreamingSerializerForMediaType("application/json;stream=watch", nil)
conf.NegotiatedSerializer = serializer.NegotiatedSerializerWrapper(runtime.SerializerInfo{Serializer: dynamicCodec{}}, streamingInfo)
}
dynamicClient, err := NewClient(conf)
if err != nil {
return nil, err
}
c.clients[gv] = dynamicClient
return dynamicClient, nil
}

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dynamic/client_test.go Normal file
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/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package dynamic
import (
"bytes"
"fmt"
"io/ioutil"
"net/http"
"net/http/httptest"
"reflect"
"testing"
"k8s.io/client-go/1.5/pkg/api"
"k8s.io/client-go/1.5/pkg/api/unversioned"
"k8s.io/client-go/1.5/pkg/api/v1"
"k8s.io/client-go/1.5/pkg/runtime"
"k8s.io/client-go/1.5/pkg/runtime/serializer/streaming"
"k8s.io/client-go/1.5/pkg/watch"
"k8s.io/client-go/1.5/pkg/watch/versioned"
"k8s.io/client-go/1.5/rest"
)
func getJSON(version, kind, name string) []byte {
return []byte(fmt.Sprintf(`{"apiVersion": %q, "kind": %q, "metadata": {"name": %q}}`, version, kind, name))
}
func getListJSON(version, kind string, items ...[]byte) []byte {
json := fmt.Sprintf(`{"apiVersion": %q, "kind": %q, "items": [%s]}`,
version, kind, bytes.Join(items, []byte(",")))
return []byte(json)
}
func getObject(version, kind, name string) *runtime.Unstructured {
return &runtime.Unstructured{
Object: map[string]interface{}{
"apiVersion": version,
"kind": kind,
"metadata": map[string]interface{}{
"name": name,
},
},
}
}
func getClientServer(gv *unversioned.GroupVersion, h func(http.ResponseWriter, *http.Request)) (*Client, *httptest.Server, error) {
srv := httptest.NewServer(http.HandlerFunc(h))
cl, err := NewClient(&rest.Config{
Host: srv.URL,
ContentConfig: rest.ContentConfig{GroupVersion: gv},
})
if err != nil {
srv.Close()
return nil, nil, err
}
return cl, srv, nil
}
func TestList(t *testing.T) {
tcs := []struct {
name string
namespace string
path string
resp []byte
want *runtime.UnstructuredList
}{
{
name: "normal_list",
path: "/api/gtest/vtest/rtest",
resp: getListJSON("vTest", "rTestList",
getJSON("vTest", "rTest", "item1"),
getJSON("vTest", "rTest", "item2")),
want: &runtime.UnstructuredList{
Object: map[string]interface{}{
"apiVersion": "vTest",
"kind": "rTestList",
},
Items: []*runtime.Unstructured{
getObject("vTest", "rTest", "item1"),
getObject("vTest", "rTest", "item2"),
},
},
},
{
name: "namespaced_list",
namespace: "nstest",
path: "/api/gtest/vtest/namespaces/nstest/rtest",
resp: getListJSON("vTest", "rTestList",
getJSON("vTest", "rTest", "item1"),
getJSON("vTest", "rTest", "item2")),
want: &runtime.UnstructuredList{
Object: map[string]interface{}{
"apiVersion": "vTest",
"kind": "rTestList",
},
Items: []*runtime.Unstructured{
getObject("vTest", "rTest", "item1"),
getObject("vTest", "rTest", "item2"),
},
},
},
}
for _, tc := range tcs {
gv := &unversioned.GroupVersion{Group: "gtest", Version: "vtest"}
resource := &unversioned.APIResource{Name: "rtest", Namespaced: len(tc.namespace) != 0}
cl, srv, err := getClientServer(gv, func(w http.ResponseWriter, r *http.Request) {
if r.Method != "GET" {
t.Errorf("List(%q) got HTTP method %s. wanted GET", tc.name, r.Method)
}
if r.URL.Path != tc.path {
t.Errorf("List(%q) got path %s. wanted %s", tc.name, r.URL.Path, tc.path)
}
w.Header().Set("Content-Type", runtime.ContentTypeJSON)
w.Write(tc.resp)
})
if err != nil {
t.Errorf("unexpected error when creating client: %v", err)
continue
}
defer srv.Close()
got, err := cl.Resource(resource, tc.namespace).List(&v1.ListOptions{})
if err != nil {
t.Errorf("unexpected error when listing %q: %v", tc.name, err)
continue
}
if !reflect.DeepEqual(got, tc.want) {
t.Errorf("List(%q) want: %v\ngot: %v", tc.name, tc.want, got)
}
}
}
func TestGet(t *testing.T) {
tcs := []struct {
namespace string
name string
path string
resp []byte
want *runtime.Unstructured
}{
{
name: "normal_get",
path: "/api/gtest/vtest/rtest/normal_get",
resp: getJSON("vTest", "rTest", "normal_get"),
want: getObject("vTest", "rTest", "normal_get"),
},
{
namespace: "nstest",
name: "namespaced_get",
path: "/api/gtest/vtest/namespaces/nstest/rtest/namespaced_get",
resp: getJSON("vTest", "rTest", "namespaced_get"),
want: getObject("vTest", "rTest", "namespaced_get"),
},
}
for _, tc := range tcs {
gv := &unversioned.GroupVersion{Group: "gtest", Version: "vtest"}
resource := &unversioned.APIResource{Name: "rtest", Namespaced: len(tc.namespace) != 0}
cl, srv, err := getClientServer(gv, func(w http.ResponseWriter, r *http.Request) {
if r.Method != "GET" {
t.Errorf("Get(%q) got HTTP method %s. wanted GET", tc.name, r.Method)
}
if r.URL.Path != tc.path {
t.Errorf("Get(%q) got path %s. wanted %s", tc.name, r.URL.Path, tc.path)
}
w.Header().Set("Content-Type", runtime.ContentTypeJSON)
w.Write(tc.resp)
})
if err != nil {
t.Errorf("unexpected error when creating client: %v", err)
continue
}
defer srv.Close()
got, err := cl.Resource(resource, tc.namespace).Get(tc.name)
if err != nil {
t.Errorf("unexpected error when getting %q: %v", tc.name, err)
continue
}
if !reflect.DeepEqual(got, tc.want) {
t.Errorf("Get(%q) want: %v\ngot: %v", tc.name, tc.want, got)
}
}
}
func TestDelete(t *testing.T) {
statusOK := &unversioned.Status{
TypeMeta: unversioned.TypeMeta{Kind: "Status"},
Status: unversioned.StatusSuccess,
}
tcs := []struct {
namespace string
name string
path string
}{
{
name: "normal_delete",
path: "/api/gtest/vtest/rtest/normal_delete",
},
{
namespace: "nstest",
name: "namespaced_delete",
path: "/api/gtest/vtest/namespaces/nstest/rtest/namespaced_delete",
},
}
for _, tc := range tcs {
gv := &unversioned.GroupVersion{Group: "gtest", Version: "vtest"}
resource := &unversioned.APIResource{Name: "rtest", Namespaced: len(tc.namespace) != 0}
cl, srv, err := getClientServer(gv, func(w http.ResponseWriter, r *http.Request) {
if r.Method != "DELETE" {
t.Errorf("Delete(%q) got HTTP method %s. wanted DELETE", tc.name, r.Method)
}
if r.URL.Path != tc.path {
t.Errorf("Delete(%q) got path %s. wanted %s", tc.name, r.URL.Path, tc.path)
}
w.Header().Set("Content-Type", runtime.ContentTypeJSON)
runtime.UnstructuredJSONScheme.Encode(statusOK, w)
})
if err != nil {
t.Errorf("unexpected error when creating client: %v", err)
continue
}
defer srv.Close()
err = cl.Resource(resource, tc.namespace).Delete(tc.name, nil)
if err != nil {
t.Errorf("unexpected error when deleting %q: %v", tc.name, err)
continue
}
}
}
func TestDeleteCollection(t *testing.T) {
statusOK := &unversioned.Status{
TypeMeta: unversioned.TypeMeta{Kind: "Status"},
Status: unversioned.StatusSuccess,
}
tcs := []struct {
namespace string
name string
path string
}{
{
name: "normal_delete_collection",
path: "/api/gtest/vtest/rtest",
},
{
namespace: "nstest",
name: "namespaced_delete_collection",
path: "/api/gtest/vtest/namespaces/nstest/rtest",
},
}
for _, tc := range tcs {
gv := &unversioned.GroupVersion{Group: "gtest", Version: "vtest"}
resource := &unversioned.APIResource{Name: "rtest", Namespaced: len(tc.namespace) != 0}
cl, srv, err := getClientServer(gv, func(w http.ResponseWriter, r *http.Request) {
if r.Method != "DELETE" {
t.Errorf("DeleteCollection(%q) got HTTP method %s. wanted DELETE", tc.name, r.Method)
}
if r.URL.Path != tc.path {
t.Errorf("DeleteCollection(%q) got path %s. wanted %s", tc.name, r.URL.Path, tc.path)
}
w.Header().Set("Content-Type", runtime.ContentTypeJSON)
runtime.UnstructuredJSONScheme.Encode(statusOK, w)
})
if err != nil {
t.Errorf("unexpected error when creating client: %v", err)
continue
}
defer srv.Close()
err = cl.Resource(resource, tc.namespace).DeleteCollection(nil, &v1.ListOptions{})
if err != nil {
t.Errorf("unexpected error when deleting collection %q: %v", tc.name, err)
continue
}
}
}
func TestCreate(t *testing.T) {
tcs := []struct {
name string
namespace string
obj *runtime.Unstructured
path string
}{
{
name: "normal_create",
path: "/api/gtest/vtest/rtest",
obj: getObject("vTest", "rTest", "normal_create"),
},
{
name: "namespaced_create",
namespace: "nstest",
path: "/api/gtest/vtest/namespaces/nstest/rtest",
obj: getObject("vTest", "rTest", "namespaced_create"),
},
}
for _, tc := range tcs {
gv := &unversioned.GroupVersion{Group: "gtest", Version: "vtest"}
resource := &unversioned.APIResource{Name: "rtest", Namespaced: len(tc.namespace) != 0}
cl, srv, err := getClientServer(gv, func(w http.ResponseWriter, r *http.Request) {
if r.Method != "POST" {
t.Errorf("Create(%q) got HTTP method %s. wanted POST", tc.name, r.Method)
}
if r.URL.Path != tc.path {
t.Errorf("Create(%q) got path %s. wanted %s", tc.name, r.URL.Path, tc.path)
}
w.Header().Set("Content-Type", runtime.ContentTypeJSON)
data, err := ioutil.ReadAll(r.Body)
if err != nil {
t.Errorf("Create(%q) unexpected error reading body: %v", tc.name, err)
w.WriteHeader(http.StatusInternalServerError)
return
}
w.Write(data)
})
if err != nil {
t.Errorf("unexpected error when creating client: %v", err)
continue
}
defer srv.Close()
got, err := cl.Resource(resource, tc.namespace).Create(tc.obj)
if err != nil {
t.Errorf("unexpected error when creating %q: %v", tc.name, err)
continue
}
if !reflect.DeepEqual(got, tc.obj) {
t.Errorf("Create(%q) want: %v\ngot: %v", tc.name, tc.obj, got)
}
}
}
func TestUpdate(t *testing.T) {
tcs := []struct {
name string
namespace string
obj *runtime.Unstructured
path string
}{
{
name: "normal_update",
path: "/api/gtest/vtest/rtest/normal_update",
obj: getObject("vTest", "rTest", "normal_update"),
},
{
name: "namespaced_update",
namespace: "nstest",
path: "/api/gtest/vtest/namespaces/nstest/rtest/namespaced_update",
obj: getObject("vTest", "rTest", "namespaced_update"),
},
}
for _, tc := range tcs {
gv := &unversioned.GroupVersion{Group: "gtest", Version: "vtest"}
resource := &unversioned.APIResource{Name: "rtest", Namespaced: len(tc.namespace) != 0}
cl, srv, err := getClientServer(gv, func(w http.ResponseWriter, r *http.Request) {
if r.Method != "PUT" {
t.Errorf("Update(%q) got HTTP method %s. wanted PUT", tc.name, r.Method)
}
if r.URL.Path != tc.path {
t.Errorf("Update(%q) got path %s. wanted %s", tc.name, r.URL.Path, tc.path)
}
w.Header().Set("Content-Type", runtime.ContentTypeJSON)
data, err := ioutil.ReadAll(r.Body)
if err != nil {
t.Errorf("Update(%q) unexpected error reading body: %v", tc.name, err)
w.WriteHeader(http.StatusInternalServerError)
return
}
w.Write(data)
})
if err != nil {
t.Errorf("unexpected error when creating client: %v", err)
continue
}
defer srv.Close()
got, err := cl.Resource(resource, tc.namespace).Update(tc.obj)
if err != nil {
t.Errorf("unexpected error when updating %q: %v", tc.name, err)
continue
}
if !reflect.DeepEqual(got, tc.obj) {
t.Errorf("Update(%q) want: %v\ngot: %v", tc.name, tc.obj, got)
}
}
}
func TestWatch(t *testing.T) {
tcs := []struct {
name string
namespace string
events []watch.Event
path string
}{
{
name: "normal_watch",
path: "/api/gtest/vtest/watch/rtest",
events: []watch.Event{
{Type: watch.Added, Object: getObject("vTest", "rTest", "normal_watch")},
{Type: watch.Modified, Object: getObject("vTest", "rTest", "normal_watch")},
{Type: watch.Deleted, Object: getObject("vTest", "rTest", "normal_watch")},
},
},
{
name: "namespaced_watch",
namespace: "nstest",
path: "/api/gtest/vtest/watch/namespaces/nstest/rtest",
events: []watch.Event{
{Type: watch.Added, Object: getObject("vTest", "rTest", "namespaced_watch")},
{Type: watch.Modified, Object: getObject("vTest", "rTest", "namespaced_watch")},
{Type: watch.Deleted, Object: getObject("vTest", "rTest", "namespaced_watch")},
},
},
}
for _, tc := range tcs {
gv := &unversioned.GroupVersion{Group: "gtest", Version: "vtest"}
resource := &unversioned.APIResource{Name: "rtest", Namespaced: len(tc.namespace) != 0}
cl, srv, err := getClientServer(gv, func(w http.ResponseWriter, r *http.Request) {
if r.Method != "GET" {
t.Errorf("Watch(%q) got HTTP method %s. wanted GET", tc.name, r.Method)
}
if r.URL.Path != tc.path {
t.Errorf("Watch(%q) got path %s. wanted %s", tc.name, r.URL.Path, tc.path)
}
enc := versioned.NewEncoder(streaming.NewEncoder(w, dynamicCodec{}), dynamicCodec{})
for _, e := range tc.events {
enc.Encode(&e)
}
})
if err != nil {
t.Errorf("unexpected error when creating client: %v", err)
continue
}
defer srv.Close()
watcher, err := cl.Resource(resource, tc.namespace).Watch(&v1.ListOptions{})
if err != nil {
t.Errorf("unexpected error when watching %q: %v", tc.name, err)
continue
}
for _, want := range tc.events {
got := <-watcher.ResultChan()
if !reflect.DeepEqual(got, want) {
t.Errorf("Watch(%q) want: %v\ngot: %v", tc.name, want, got)
}
}
}
}
func TestPatch(t *testing.T) {
tcs := []struct {
name string
namespace string
patch []byte
want *runtime.Unstructured
path string
}{
{
name: "normal_patch",
path: "/api/gtest/vtest/rtest/normal_patch",
patch: getJSON("vTest", "rTest", "normal_patch"),
want: getObject("vTest", "rTest", "normal_patch"),
},
{
name: "namespaced_patch",
namespace: "nstest",
path: "/api/gtest/vtest/namespaces/nstest/rtest/namespaced_patch",
patch: getJSON("vTest", "rTest", "namespaced_patch"),
want: getObject("vTest", "rTest", "namespaced_patch"),
},
}
for _, tc := range tcs {
gv := &unversioned.GroupVersion{Group: "gtest", Version: "vtest"}
resource := &unversioned.APIResource{Name: "rtest", Namespaced: len(tc.namespace) != 0}
cl, srv, err := getClientServer(gv, func(w http.ResponseWriter, r *http.Request) {
if r.Method != "PATCH" {
t.Errorf("Patch(%q) got HTTP method %s. wanted PATCH", tc.name, r.Method)
}
if r.URL.Path != tc.path {
t.Errorf("Patch(%q) got path %s. wanted %s", tc.name, r.URL.Path, tc.path)
}
content := r.Header.Get("Content-Type")
if content != string(api.StrategicMergePatchType) {
t.Errorf("Patch(%q) got Content-Type %s. wanted %s", tc.name, content, api.StrategicMergePatchType)
}
data, err := ioutil.ReadAll(r.Body)
if err != nil {
t.Errorf("Patch(%q) unexpected error reading body: %v", tc.name, err)
w.WriteHeader(http.StatusInternalServerError)
return
}
w.Write(data)
})
if err != nil {
t.Errorf("unexpected error when creating client: %v", err)
continue
}
defer srv.Close()
got, err := cl.Resource(resource, tc.namespace).Patch(tc.name, api.StrategicMergePatchType, tc.patch)
if err != nil {
t.Errorf("unexpected error when patching %q: %v", tc.name, err)
continue
}
if !reflect.DeepEqual(got, tc.want) {
t.Errorf("Patch(%q) want: %v\ngot: %v", tc.name, tc.want, got)
}
}
}

94
dynamic/dynamic_util.go Normal file
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@@ -0,0 +1,94 @@
/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package dynamic
import (
"fmt"
"k8s.io/client-go/1.5/pkg/api/meta"
"k8s.io/client-go/1.5/pkg/api/unversioned"
"k8s.io/client-go/1.5/pkg/runtime"
)
// VersionInterfaces provides an object converter and metadata
// accessor appropriate for use with unstructured objects.
func VersionInterfaces(unversioned.GroupVersion) (*meta.VersionInterfaces, error) {
return &meta.VersionInterfaces{
ObjectConvertor: &runtime.UnstructuredObjectConverter{},
MetadataAccessor: meta.NewAccessor(),
}, nil
}
// NewDiscoveryRESTMapper returns a RESTMapper based on discovery information.
func NewDiscoveryRESTMapper(resources []*unversioned.APIResourceList, versionFunc meta.VersionInterfacesFunc) (*meta.DefaultRESTMapper, error) {
rm := meta.NewDefaultRESTMapper(nil, versionFunc)
for _, resourceList := range resources {
gv, err := unversioned.ParseGroupVersion(resourceList.GroupVersion)
if err != nil {
return nil, err
}
for _, resource := range resourceList.APIResources {
gvk := gv.WithKind(resource.Kind)
scope := meta.RESTScopeRoot
if resource.Namespaced {
scope = meta.RESTScopeNamespace
}
rm.Add(gvk, scope)
}
}
return rm, nil
}
// ObjectTyper provides an ObjectTyper implementation for
// runtime.Unstructured object based on discovery information.
type ObjectTyper struct {
registered map[unversioned.GroupVersionKind]bool
}
// NewObjectTyper constructs an ObjectTyper from discovery information.
func NewObjectTyper(resources []*unversioned.APIResourceList) (runtime.ObjectTyper, error) {
ot := &ObjectTyper{registered: make(map[unversioned.GroupVersionKind]bool)}
for _, resourceList := range resources {
gv, err := unversioned.ParseGroupVersion(resourceList.GroupVersion)
if err != nil {
return nil, err
}
for _, resource := range resourceList.APIResources {
ot.registered[gv.WithKind(resource.Kind)] = true
}
}
return ot, nil
}
// ObjectKinds returns a slice of one element with the
// group,version,kind of the provided object, or an error if the
// object is not *runtime.Unstructured or has no group,version,kind
// information.
func (ot *ObjectTyper) ObjectKinds(obj runtime.Object) ([]unversioned.GroupVersionKind, bool, error) {
if _, ok := obj.(*runtime.Unstructured); !ok {
return nil, false, fmt.Errorf("type %T is invalid for dynamic object typer", obj)
}
return []unversioned.GroupVersionKind{obj.GetObjectKind().GroupVersionKind()}, false, nil
}
// Recognizes returns true if the provided group,version,kind was in
// the discovery information.
func (ot *ObjectTyper) Recognizes(gvk unversioned.GroupVersionKind) bool {
return ot.registered[gvk]
}

78
dynamic/dynamic_util_test.go Normal file
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@@ -0,0 +1,78 @@
/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package dynamic
import (
"testing"
"k8s.io/client-go/1.5/pkg/api/unversioned"
)
func TestDiscoveryRESTMapper(t *testing.T) {
resources := []*unversioned.APIResourceList{
{
GroupVersion: "test/beta1",
APIResources: []unversioned.APIResource{
{
Name: "test_kinds",
Namespaced: true,
Kind: "test_kind",
},
},
},
}
gvk := unversioned.GroupVersionKind{
Group: "test",
Version: "beta1",
Kind: "test_kind",
}
mapper, err := NewDiscoveryRESTMapper(resources, VersionInterfaces)
if err != nil {
t.Fatalf("unexpected error creating mapper: %s", err)
}
for _, res := range []unversioned.GroupVersionResource{
{
Group: "test",
Version: "beta1",
Resource: "test_kinds",
},
{
Version: "beta1",
Resource: "test_kinds",
},
{
Group: "test",
Resource: "test_kinds",
},
{
Resource: "test_kinds",
},
} {
got, err := mapper.KindFor(res)
if err != nil {
t.Errorf("KindFor(%#v) unexpected error: %s", res, err)
continue
}
if got != gvk {
t.Errorf("KindFor(%#v) = %#v; want %#v", res, got, gvk)
}
}
}