Cloning v1beta3 as v1 and exposing it in the apiserver

cmd/kube-apiserver/app/server.go

@@ -225,6 +225,8 @@ func (s *APIServer) Run(_ []string) error {
 		disableV1beta3 = true
 	}
 
+	_, enableV1 := s.RuntimeConfig["api/v1"]
+
 	// TODO: expose same flags as client.BindClientConfigFlags but for a server
 	clientConfig := &client.Config{
 		Host:    net.JoinHostPort(s.InsecureBindAddress.String(), strconv.Itoa(s.InsecurePort)),
@@ -298,6 +300,7 @@ func (s *APIServer) Run(_ []string) error {
 		Authorizer:             authorizer,
 		AdmissionControl:       admissionController,
 		DisableV1Beta3:         disableV1beta3,
+		EnableV1:               enableV1,
 		MasterServiceNamespace: s.MasterServiceNamespace,
 		ClusterName:            s.ClusterName,
 		ExternalHost:           s.ExternalHost,

pkg/api/latest/latest.go

@@ -22,6 +22,7 @@ import (
 
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/api/meta"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/api/v1"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/api/v1beta1"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/api/v1beta2"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/api/v1beta3"
@@ -40,7 +41,7 @@ const OldestVersion = "v1beta1"
 // may be assumed to be least feature rich to most feature rich, and clients may
 // choose to prefer the latter items in the list over the former items when presented
 // with a set of versions to choose.
-var Versions = []string{"v1beta1", "v1beta2", "v1beta3"}
+var Versions = []string{"v1beta1", "v1beta2", "v1beta3", "v1"}
 
 // Codec is the default codec for serializing output that should use
 // the latest supported version.  Use this Codec when writing to
@@ -86,6 +87,12 @@ func InterfacesFor(version string) (*meta.VersionInterfaces, error) {
 			ObjectConvertor:  api.Scheme,
 			MetadataAccessor: accessor,
 		}, nil
+	case "v1":
+		return &meta.VersionInterfaces{
+			Codec:            v1.Codec,
+			ObjectConvertor:  api.Scheme,
+			MetadataAccessor: accessor,
+		}, nil
 	default:
 		return nil, fmt.Errorf("unsupported storage version: %s (valid: %s)", version, strings.Join(Versions, ", "))
 	}
@@ -103,7 +110,7 @@ func init() {
 		},
 	)
 	// list of versions we support on the server
-	versions := []string{"v1beta1", "v1beta2", "v1beta3"}
+	versions := []string{"v1beta1", "v1beta2", "v1beta3", "v1"}
 
 	// versions that used mixed case URL formats
 	versionMixedCase := map[string]bool{
@@ -116,6 +123,7 @@ func init() {
 		"v1beta1": meta.RESTScopeNamespaceLegacy,
 		"v1beta2": meta.RESTScopeNamespaceLegacy,
 		"v1beta3": meta.RESTScopeNamespace,
+		"v1":      meta.RESTScopeNamespace,
 	}
 
 	// the list of kinds that are scoped at the root of the api hierarchy

pkg/api/v1/conversion_test.go

+/*
+Copyright 2015 Google Inc. All rights reserved.
+
+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 v1_test
+
+import (
+	"testing"
+
+	newer "github.com/GoogleCloudPlatform/kubernetes/pkg/api"
+	current "github.com/GoogleCloudPlatform/kubernetes/pkg/api/v1"
+)
+
+func TestNodeConversion(t *testing.T) {
+	obj, err := current.Codec.Decode([]byte(`{"kind":"Minion","apiVersion":"v1"}`))
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if _, ok := obj.(*newer.Node); !ok {
+		t.Errorf("unexpected type: %#v", obj)
+	}
+
+	obj, err = current.Codec.Decode([]byte(`{"kind":"MinionList","apiVersion":"v1"}`))
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if _, ok := obj.(*newer.NodeList); !ok {
+		t.Errorf("unexpected type: %#v", obj)
+	}
+
+	obj = &newer.Node{}
+	if err := current.Codec.DecodeInto([]byte(`{"kind":"Minion","apiVersion":"v1"}`), obj); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+}

pkg/api/v1/defaults.go

+/*
+Copyright 2015 Google Inc. All rights reserved.
+
+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 v1
+
+import (
+	"strings"
+
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
+)
+
+func init() {
+	api.Scheme.AddDefaultingFuncs(
+		func(obj *ReplicationController) {
+			var labels map[string]string
+			if obj.Spec.Template != nil {
+				labels = obj.Spec.Template.Labels
+			}
+			// TODO: support templates defined elsewhere when we support them in the API
+			if labels != nil {
+				if len(obj.Spec.Selector) == 0 {
+					obj.Spec.Selector = labels
+				}
+				if len(obj.Labels) == 0 {
+					obj.Labels = labels
+				}
+			}
+		},
+		func(obj *Volume) {
+			if util.AllPtrFieldsNil(&obj.VolumeSource) {
+				obj.VolumeSource = VolumeSource{
+					EmptyDir: &EmptyDirVolumeSource{},
+				}
+			}
+		},
+		func(obj *ContainerPort) {
+			if obj.Protocol == "" {
+				obj.Protocol = ProtocolTCP
+			}
+		},
+		func(obj *Container) {
+			if obj.ImagePullPolicy == "" {
+				// TODO(dchen1107): Move ParseImageName code to pkg/util
+				parts := strings.Split(obj.Image, ":")
+				// Check image tag
+				if parts[len(parts)-1] == "latest" {
+					obj.ImagePullPolicy = PullAlways
+				} else {
+					obj.ImagePullPolicy = PullIfNotPresent
+				}
+			}
+			if obj.TerminationMessagePath == "" {
+				obj.TerminationMessagePath = TerminationMessagePathDefault
+			}
+		},
+		func(obj *ServiceSpec) {
+			if obj.SessionAffinity == "" {
+				obj.SessionAffinity = AffinityTypeNone
+			}
+			for i := range obj.Ports {
+				sp := &obj.Ports[i]
+				if sp.Protocol == "" {
+					sp.Protocol = ProtocolTCP
+				}
+				if sp.TargetPort == util.NewIntOrStringFromInt(0) || sp.TargetPort == util.NewIntOrStringFromString("") {
+					sp.TargetPort = util.NewIntOrStringFromInt(sp.Port)
+				}
+			}
+		},
+		func(obj *PodSpec) {
+			if obj.DNSPolicy == "" {
+				obj.DNSPolicy = DNSClusterFirst
+			}
+			if obj.RestartPolicy == "" {
+				obj.RestartPolicy = RestartPolicyAlways
+			}
+			if obj.HostNetwork {
+				defaultHostNetworkPorts(&obj.Containers)
+			}
+		},
+		func(obj *Probe) {
+			if obj.TimeoutSeconds == 0 {
+				obj.TimeoutSeconds = 1
+			}
+		},
+		func(obj *Secret) {
+			if obj.Type == "" {
+				obj.Type = SecretTypeOpaque
+			}
+		},
+		func(obj *PersistentVolume) {
+			if obj.Status.Phase == "" {
+				obj.Status.Phase = VolumePending
+			}
+		},
+		func(obj *PersistentVolumeClaim) {
+			if obj.Status.Phase == "" {
+				obj.Status.Phase = ClaimPending
+			}
+		},
+		func(obj *Endpoints) {
+			for i := range obj.Subsets {
+				ss := &obj.Subsets[i]
+				for i := range ss.Ports {
+					ep := &ss.Ports[i]
+					if ep.Protocol == "" {
+						ep.Protocol = ProtocolTCP
+					}
+				}
+			}
+		},
+		func(obj *HTTPGetAction) {
+			if obj.Path == "" {
+				obj.Path = "/"
+			}
+		},
+		func(obj *NamespaceStatus) {
+			if obj.Phase == "" {
+				obj.Phase = NamespaceActive
+			}
+		},
+		func(obj *Node) {
+			if obj.Spec.ExternalID == "" {
+				obj.Spec.ExternalID = obj.Name
+			}
+		},
+		func(obj *ObjectFieldSelector) {
+			if obj.APIVersion == "" {
+				obj.APIVersion = "v1"
+			}
+		},
+	)
+}
+
+// With host networking default all container ports to host ports.
+func defaultHostNetworkPorts(containers *[]Container) {
+	for i := range *containers {
+		for j := range (*containers)[i].Ports {
+			if (*containers)[i].Ports[j].HostPort == 0 {
+				(*containers)[i].Ports[j].HostPort = (*containers)[i].Ports[j].ContainerPort
+			}
+		}
+	}
+}

pkg/api/v1/doc.go

+/*
+Copyright 2015 Google Inc. All rights reserved.
+
+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 v1 is the v1 version of the API.
+package v1

pkg/api/v1/register.go

+/*
+Copyright 2015 Google Inc. All rights reserved.
+
+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 v1
+
+import (
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
+)
+
+// Codec encodes internal objects to the v1 scheme
+var Codec = runtime.CodecFor(api.Scheme, "v1")
+
+func init() {
+	api.Scheme.AddKnownTypes("v1",
+		&Pod{},
+		&PodList{},
+		&PodStatusResult{},
+		&PodTemplate{},
+		&PodTemplateList{},
+		&ReplicationController{},
+		&ReplicationControllerList{},
+		&Service{},
+		&ServiceList{},
+		&Endpoints{},
+		&EndpointsList{},
+		&Node{},
+		&NodeList{},
+		&Binding{},
+		&Status{},
+		&Event{},
+		&EventList{},
+		&List{},
+		&LimitRange{},
+		&LimitRangeList{},
+		&ResourceQuota{},
+		&ResourceQuotaList{},
+		&Namespace{},
+		&NamespaceList{},
+		&Secret{},
+		&SecretList{},
+		&PersistentVolume{},
+		&PersistentVolumeList{},
+		&PersistentVolumeClaim{},
+		&PersistentVolumeClaimList{},
+		&DeleteOptions{},
+		&ListOptions{},
+		&PodLogOptions{},
+		&PodExecOptions{},
+		&PodProxyOptions{},
+		&ComponentStatus{},
+		&ComponentStatusList{},
+	)
+	// Legacy names are supported
+	api.Scheme.AddKnownTypeWithName("v1", "Minion", &Node{})
+	api.Scheme.AddKnownTypeWithName("v1", "MinionList", &NodeList{})
+}
+
+func (*Pod) IsAnAPIObject()                       {}
+func (*PodList) IsAnAPIObject()                   {}
+func (*PodStatusResult) IsAnAPIObject()           {}
+func (*PodTemplate) IsAnAPIObject()               {}
+func (*PodTemplateList) IsAnAPIObject()           {}
+func (*ReplicationController) IsAnAPIObject()     {}
+func (*ReplicationControllerList) IsAnAPIObject() {}
+func (*Service) IsAnAPIObject()                   {}
+func (*ServiceList) IsAnAPIObject()               {}
+func (*Endpoints) IsAnAPIObject()                 {}
+func (*EndpointsList) IsAnAPIObject()             {}
+func (*Node) IsAnAPIObject()                      {}
+func (*NodeList) IsAnAPIObject()                  {}
+func (*Binding) IsAnAPIObject()                   {}
+func (*Status) IsAnAPIObject()                    {}
+func (*Event) IsAnAPIObject()                     {}
+func (*EventList) IsAnAPIObject()                 {}
+func (*List) IsAnAPIObject()                      {}
+func (*LimitRange) IsAnAPIObject()                {}
+func (*LimitRangeList) IsAnAPIObject()            {}
+func (*ResourceQuota) IsAnAPIObject()             {}
+func (*ResourceQuotaList) IsAnAPIObject()         {}
+func (*Namespace) IsAnAPIObject()                 {}
+func (*NamespaceList) IsAnAPIObject()             {}
+func (*Secret) IsAnAPIObject()                    {}
+func (*SecretList) IsAnAPIObject()                {}
+func (*PersistentVolume) IsAnAPIObject()          {}
+func (*PersistentVolumeList) IsAnAPIObject()      {}
+func (*PersistentVolumeClaim) IsAnAPIObject()     {}
+func (*PersistentVolumeClaimList) IsAnAPIObject() {}
+func (*DeleteOptions) IsAnAPIObject()             {}
+func (*ListOptions) IsAnAPIObject()               {}
+func (*PodLogOptions) IsAnAPIObject()             {}
+func (*PodExecOptions) IsAnAPIObject()            {}
+func (*PodProxyOptions) IsAnAPIObject()           {}
+func (*ComponentStatus) IsAnAPIObject()           {}
+func (*ComponentStatusList) IsAnAPIObject()       {}

pkg/master/master.go

@@ -32,6 +32,7 @@ import (
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/api/latest"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/api/rest"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/api/v1"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/api/v1beta1"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/api/v1beta2"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/api/v1beta3"
@@ -88,6 +89,8 @@ type Config struct {
 	EnableSwaggerSupport bool
 	// allow v1beta3 to be conditionally disabled
 	DisableV1Beta3 bool
+	// allow v1 to be conditionally enabled
+	EnableV1 bool
 	// allow downstream consumers to disable the index route
 	EnableIndex            bool
 	EnableProfiling        bool
@@ -150,6 +153,7 @@ type Master struct {
 	admissionControl      admission.Interface
 	masterCount           int
 	v1beta3               bool
+	v1                    bool
 	requestContextMapper  api.RequestContextMapper
 
 	// External host is the name that should be used in external (public internet) URLs for this master
@@ -288,6 +292,7 @@ func New(c *Config) *Master {
 		authorizer:            c.Authorizer,
 		admissionControl:      c.AdmissionControl,
 		v1beta3:               !c.DisableV1Beta3,
+		v1:                    c.EnableV1,
 		requestContextMapper:  c.RequestContextMapper,
 
 		cacheTimeout: c.CacheTimeout,
@@ -448,7 +453,13 @@ func (m *Master) init(c *Config) {
 		if err := m.api_v1beta3().InstallREST(m.handlerContainer); err != nil {
 			glog.Fatalf("Unable to setup API v1beta3: %v", err)
 		}
-		apiVersions = []string{"v1beta1", "v1beta2", "v1beta3"}
+		apiVersions = append(apiVersions, "v1beta3")
+	}
+	if m.v1 {
+		if err := m.api_v1().InstallREST(m.handlerContainer); err != nil {
+			glog.Fatalf("Unable to setup API v1: %v", err)
+		}
+		apiVersions = append(apiVersions, "v1")
 	}
 
 	apiserver.InstallSupport(m.muxHelper, m.rootWebService)
@@ -667,3 +678,19 @@ func (m *Master) api_v1beta3() *apiserver.APIGroupVersion {
 	version.Codec = v1beta3.Codec
 	return version
 }
+
+// api_v1 returns the resources and codec for API version v1.
+func (m *Master) api_v1() *apiserver.APIGroupVersion {
+	storage := make(map[string]rest.Storage)
+	for k, v := range m.storage {
+		if k == "minions" {
+			continue
+		}
+		storage[strings.ToLower(k)] = v
+	}
+	version := m.defaultAPIGroupVersion()
+	version.Storage = storage
+	version.Version = "v1"
+	version.Codec = v1.Codec
+	return version
+}