Do not use namespace in url paths pre v1beta3 from client

pkg/client/fake.go

@@ -96,16 +96,16 @@ type FakeRESTClient struct {
 }
 
 func (c *FakeRESTClient) Get() *Request {
-	return NewRequest(c, "GET", &url.URL{Host: "localhost"}, c.Codec)
+	return NewRequest(c, "GET", &url.URL{Host: "localhost"}, c.Codec, true)
 }
 func (c *FakeRESTClient) Put() *Request {
-	return NewRequest(c, "PUT", &url.URL{Host: "localhost"}, c.Codec)
+	return NewRequest(c, "PUT", &url.URL{Host: "localhost"}, c.Codec, true)
 }
 func (c *FakeRESTClient) Post() *Request {
-	return NewRequest(c, "POST", &url.URL{Host: "localhost"}, c.Codec)
+	return NewRequest(c, "POST", &url.URL{Host: "localhost"}, c.Codec, true)
 }
 func (c *FakeRESTClient) Delete() *Request {
-	return NewRequest(c, "DELETE", &url.URL{Host: "localhost"}, c.Codec)
+	return NewRequest(c, "DELETE", &url.URL{Host: "localhost"}, c.Codec, true)
 }
 func (c *FakeRESTClient) Do(req *http.Request) (*http.Response, error) {
 	c.Req = req

pkg/client/helper.go

@@ -117,7 +117,7 @@ func RESTClientFor(config *Config) (*RESTClient, error) {
 		return nil, err
 	}
 
-	client := NewRESTClient(baseURL, versionInterfaces.Codec)
+	client := NewRESTClient(baseURL, versionInterfaces.Codec, NamespaceInPathFor(version))
 
 	transport, err := TransportFor(config)
 	if err != nil {
@@ -252,3 +252,9 @@ func defaultVersionFor(config *Config) string {
 	}
 	return version
 }
+
+// namespaceInPathFor is used to control what api version should use namespace in url paths
+func NamespaceInPathFor(version string) bool {
+	// we use query param for v1beta1/v1beta2, v1beta3+ will use path param
+	return (version != "v1beta1" && version != "v1beta2")
+}

pkg/client/request.go

@@ -96,19 +96,22 @@ type Request struct {
 	sync     bool
 	timeout  time.Duration
 
+	// flag to control how to use namespace in urls
+	namespaceAsPath bool
+
 	// output
 	err  error
 	body io.Reader
 }
 
 // NewRequest creates a new request with the core attributes.
-func NewRequest(client HTTPClient, verb string, baseURL *url.URL, codec runtime.Codec) *Request {
+func NewRequest(client HTTPClient, verb string, baseURL *url.URL, codec runtime.Codec, namespaceAsPath bool) *Request {
 	return &Request{
 		client:          client,
 		verb:            verb,
 		baseURL:         baseURL,
 		codec:           codec,
-
+		namespaceAsPath: namespaceAsPath,
 		path:            baseURL.Path,
 	}
 }
@@ -136,8 +139,14 @@ func (r *Request) Namespace(namespace string) *Request {
 	if r.err != nil {
 		return r
 	}
+
 	if len(namespace) > 0 {
+		if r.namespaceAsPath {
 			return r.Path("ns").Path(namespace)
+		} else {
+			return r.setParam("namespace", namespace)
+		}
+
 	}
 	return r
 }

pkg/client/request_test.go

@@ -137,7 +137,7 @@ func TestTransformResponse(t *testing.T) {
 		{Response: &http.Response{StatusCode: 200, Body: ioutil.NopCloser(bytes.NewReader(invalid))}, Data: invalid},
 	}
 	for i, test := range testCases {
-		r := NewRequest(nil, "", uri, testapi.Codec())
+		r := NewRequest(nil, "", uri, testapi.Codec(), true)
 		if test.Response.Body == nil {
 			test.Response.Body = ioutil.NopCloser(bytes.NewReader([]byte{}))
 		}

pkg/client/restclient.go

@@ -36,6 +36,10 @@ import (
 type RESTClient struct {
 	baseURL *url.URL
 
+	// namespaceInPath controls if URLs should encode the namespace as path param instead of query param
+	// needed for backward compatibility
+	namespaceInPath bool
+
 	// Codec is the encoding and decoding scheme that applies to a particular set of
 	// REST resources.
 	Codec runtime.Codec
@@ -56,7 +60,7 @@ type RESTClient struct {
 // NewRESTClient creates a new RESTClient. This client performs generic REST functions
 // such as Get, Put, Post, and Delete on specified paths.  Codec controls encoding and
 // decoding of responses from the server.
-func NewRESTClient(baseURL *url.URL, c runtime.Codec) *RESTClient {
+func NewRESTClient(baseURL *url.URL, c runtime.Codec, namespaceInPath bool) *RESTClient {
 	base := *baseURL
 	if !strings.HasSuffix(base.Path, "/") {
 		base.Path += "/"
@@ -68,6 +72,8 @@ func NewRESTClient(baseURL *url.URL, c runtime.Codec) *RESTClient {
 		baseURL: &base,
 		Codec:   c,
 
+		namespaceInPath: namespaceInPath,
+
 		// Make asynchronous requests by default
 		Sync: false,
 
@@ -98,7 +104,7 @@ func (c *RESTClient) Verb(verb string) *Request {
 	if poller == nil {
 		poller = c.DefaultPoll
 	}
-	return NewRequest(c.Client, verb, c.baseURL, c.Codec).Poller(poller).Sync(c.Sync).Timeout(c.Timeout)
+	return NewRequest(c.Client, verb, c.baseURL, c.Codec, c.namespaceInPath).Poller(poller).Sync(c.Sync).Timeout(c.Timeout)
 }
 
 // Post begins a POST request. Short for c.Verb("POST").

pkg/config/config_test.go

@@ -48,7 +48,7 @@ func getFakeClient(t *testing.T, validURLs []string) (ClientPosterFunc, *httptes
 	return func(mapping *meta.RESTMapping) (RESTClientPoster, error) {
 		fakeCodec := runtime.CodecFor(api.Scheme, "v1beta1")
 		fakeUri, _ := url.Parse(server.URL + "/api/v1beta1")
-		return client.NewRESTClient(fakeUri, fakeCodec), nil
+		return client.NewRESTClient(fakeUri, fakeCodec, false), nil
 	}, server
 }
 

pkg/controller/replication_controller_test.go

@@ -37,6 +37,13 @@ import (
 	"github.com/coreos/go-etcd/etcd"
 )
 
+func makeNamespaceURL(namespace, suffix string) string {
+	if client.NamespaceInPathFor(testapi.Version()) {
+		return makeURL("/ns/" + namespace + suffix)
+	}
+	return makeURL(suffix + "?namespace=" + namespace)
+}
+
 func makeURL(suffix string) string {
 	return path.Join("/api", testapi.Version(), suffix)
 }
@@ -221,7 +228,7 @@ func TestCreateReplica(t *testing.T) {
 		},
 		Spec: controllerSpec.Spec.Template.Spec,
 	}
-	fakeHandler.ValidateRequest(t, makeURL("/ns/default/pods"), "POST", nil)
+	fakeHandler.ValidateRequest(t, makeNamespaceURL("default", "/pods"), "POST", nil)
 	actualPod, err := client.Codec.Decode([]byte(fakeHandler.RequestBody))
 	if err != nil {
 		t.Errorf("Unexpected error: %#v", err)

plugin/pkg/scheduler/factory/factory.go

@@ -204,7 +204,7 @@ func (factory *ConfigFactory) pollMinions() (cache.Enumerator, error) {
 
 func (factory *ConfigFactory) makeDefaultErrorFunc(backoff *podBackoff, podQueue *cache.FIFO) func(pod *api.Pod, err error) {
 	return func(pod *api.Pod, err error) {
-		glog.Errorf("Error scheduling %v: %v; retrying", pod.Name, err)
+		glog.Errorf("Error scheduling %v %v: %v; retrying", pod.Namespace, pod.Name, err)
 		backoff.gc()
 		// Retry asynchronously.
 		// Note that this is extremely rudimentary and we need a more real error handling path.

plugin/pkg/scheduler/factory/factory_test.go

@@ -19,6 +19,7 @@ package factory
 import (
 	"net/http"
 	"net/http/httptest"
+	"path"
 	"reflect"
 	"testing"
 	"time"
@@ -183,6 +184,22 @@ func TestPollMinions(t *testing.T) {
 	}
 }
 
+func makeNamespaceURL(namespace, suffix string, isClient bool) string {
+	if client.NamespaceInPathFor(testapi.Version()) {
+		return makeURL("/ns/" + namespace + suffix)
+	}
+	// if this is a url the client should call, encode the url
+	if isClient {
+		return makeURL(suffix + "?namespace=" + namespace)
+	}
+	// its not a client url, so its what the server needs to listen on
+	return makeURL(suffix)
+}
+
+func makeURL(suffix string) string {
+	return path.Join("/api", testapi.Version(), suffix)
+}
+
 func TestDefaultErrorFunc(t *testing.T) {
 	testPod := &api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo", Namespace: "bar"}}
 	handler := util.FakeHandler{
@@ -191,8 +208,9 @@ func TestDefaultErrorFunc(t *testing.T) {
 		T:            t,
 	}
 	mux := http.NewServeMux()
+
 	// FakeHandler musn't be sent requests other than the one you want to test.
-	mux.Handle("/api/"+testapi.Version()+"/ns/bar/pods/foo", &handler)
+	mux.Handle(makeNamespaceURL("bar", "/pods/foo", false), &handler)
 	server := httptest.NewServer(mux)
 	defer server.Close()
 	factory := NewConfigFactory(client.NewOrDie(&client.Config{Host: server.URL, Version: testapi.Version()}))
@@ -213,7 +231,7 @@ func TestDefaultErrorFunc(t *testing.T) {
 		if !exists {
 			continue
 		}
-		handler.ValidateRequest(t, "/api/"+testapi.Version()+"/ns/bar/pods/foo", "GET", nil)
+		handler.ValidateRequest(t, makeNamespaceURL("bar", "/pods/foo", true), "GET", nil)
 		if e, a := testPod, got; !reflect.DeepEqual(e, a) {
 			t.Errorf("Expected %v, got %v", e, a)
 		}