Added JobTemplate, a preliminary step for ScheduledJob and Workflow

cmd/libs/go2idl/conversion-gen/main.go

@@ -41,6 +41,7 @@ func main() {
 		"k8s.io/kubernetes/pkg/apis/autoscaling/v1",
 		"k8s.io/kubernetes/pkg/apis/batch",
 		"k8s.io/kubernetes/pkg/apis/batch/v1",
+		"k8s.io/kubernetes/pkg/apis/batch/v2alpha1",
 		"k8s.io/kubernetes/pkg/apis/apps",
 		"k8s.io/kubernetes/pkg/apis/apps/v1alpha1",
 		"k8s.io/kubernetes/pkg/apis/componentconfig",

cmd/libs/go2idl/deepcopy-gen/main.go

@@ -41,6 +41,7 @@ func main() {
 		"k8s.io/kubernetes/pkg/apis/autoscaling/v1",
 		"k8s.io/kubernetes/pkg/apis/batch",
 		"k8s.io/kubernetes/pkg/apis/batch/v1",
+		"k8s.io/kubernetes/pkg/apis/batch/v2alpha1",
 		"k8s.io/kubernetes/pkg/apis/apps",
 		"k8s.io/kubernetes/pkg/apis/apps/v1alpha1",
 		"k8s.io/kubernetes/pkg/apis/componentconfig",

cmd/libs/go2idl/go-to-protobuf/protobuf/cmd.go

@@ -70,6 +70,7 @@ func New() *Generator {
 			`k8s.io/kubernetes/pkg/apis/extensions/v1beta1`,
 			`k8s.io/kubernetes/pkg/apis/autoscaling/v1`,
 			`k8s.io/kubernetes/pkg/apis/batch/v1`,
+			`k8s.io/kubernetes/pkg/apis/batch/v2alpha1`,
 			`k8s.io/kubernetes/pkg/apis/apps/v1alpha1`,
 			`k8s.io/kubernetes/federation/apis/federation/v1alpha1`,
 		}, ","),

hack/update-generated-swagger-docs.sh

@@ -57,7 +57,7 @@ EOF
   mv "$TMPFILE" "pkg/$(kube::util::group-version-to-pkg-path "${group_version}")/types_swagger_doc_generated.go"
 }
 
-GROUP_VERSIONS=(unversioned v1 authorization/v1beta1 autoscaling/v1 batch/v1 extensions/v1beta1 apps/v1alpha1)
+GROUP_VERSIONS=(unversioned v1 authorization/v1beta1 autoscaling/v1 batch/v1 batch/v2alpha1 extensions/v1beta1 apps/v1alpha1)
 # To avoid compile errors, remove the currently existing files.
 for group_version in "${GROUP_VERSIONS[@]}"; do
   rm -f "pkg/$(kube::util::group-version-to-pkg-path "${group_version}")/types_swagger_doc_generated.go"

hack/update-swagger-spec.sh

@@ -74,7 +74,7 @@ APISERVER_PID=$!
 kube::util::wait_for_url "http://127.0.0.1:${API_PORT}/healthz" "apiserver: "
 
 SWAGGER_API_PATH="http://127.0.0.1:${API_PORT}/swaggerapi/"
-DEFAULT_GROUP_VERSIONS="v1 autoscaling/v1 batch/v1 extensions/v1beta1 apps/v1alpha1"
+DEFAULT_GROUP_VERSIONS="v1 autoscaling/v1 batch/v1 batch/v2alpha1 extensions/v1beta1 apps/v1alpha1"
 VERSIONS=${VERSIONS:-$DEFAULT_GROUP_VERSIONS}
 
 kube::log::status "Updating " ${SWAGGER_ROOT_DIR}

pkg/apis/batch/install/install.go

@@ -30,6 +30,7 @@ import (
 	"k8s.io/kubernetes/pkg/apimachinery/registered"
 	"k8s.io/kubernetes/pkg/apis/batch"
 	"k8s.io/kubernetes/pkg/apis/batch/v1"
+	"k8s.io/kubernetes/pkg/apis/batch/v2alpha1"
 	"k8s.io/kubernetes/pkg/runtime"
 	"k8s.io/kubernetes/pkg/util/sets"
 )
@@ -39,7 +40,7 @@ const importPrefix = "k8s.io/kubernetes/pkg/apis/batch"
 var accessor = meta.NewAccessor()
 
 // availableVersions lists all known external versions for this group from most preferred to least preferred
-var availableVersions = []unversioned.GroupVersion{v1.SchemeGroupVersion}
+var availableVersions = []unversioned.GroupVersion{v1.SchemeGroupVersion, v2alpha1.SchemeGroupVersion}
 
 func init() {
 	registered.RegisterVersions(availableVersions)
@@ -106,6 +107,11 @@ func interfacesFor(version unversioned.GroupVersion) (*meta.VersionInterfaces, e
 			ObjectConvertor:  api.Scheme,
 			MetadataAccessor: accessor,
 		}, nil
+	case v2alpha1.SchemeGroupVersion:
+		return &meta.VersionInterfaces{
+			ObjectConvertor:  api.Scheme,
+			MetadataAccessor: accessor,
+		}, nil
 	default:
 		g, _ := registered.Group(batch.GroupName)
 		return nil, fmt.Errorf("unsupported storage version: %s (valid: %v)", version, g.GroupVersions)
@@ -124,6 +130,8 @@ func addVersionsToScheme(externalVersions ...unversioned.GroupVersion) {
 		switch v {
 		case v1.SchemeGroupVersion:
 			v1.AddToScheme(api.Scheme)
+		case v2alpha1.SchemeGroupVersion:
+			v2alpha1.AddToScheme(api.Scheme)
 		}
 	}
 }

pkg/apis/batch/register.go

@@ -48,9 +48,11 @@ func addKnownTypes(scheme *runtime.Scheme) {
 	scheme.AddKnownTypes(SchemeGroupVersion,
 		&Job{},
 		&JobList{},
+		&JobTemplate{},
 		&api.ListOptions{},
 	)
 }
 
-func (obj *Job) GetObjectKind() unversioned.ObjectKind     { return &obj.TypeMeta }
+func (obj *Job) GetObjectKind() unversioned.ObjectKind         { return &obj.TypeMeta }
-func (obj *JobList) GetObjectKind() unversioned.ObjectKind { return &obj.TypeMeta }
+func (obj *JobList) GetObjectKind() unversioned.ObjectKind     { return &obj.TypeMeta }
+func (obj *JobTemplate) GetObjectKind() unversioned.ObjectKind { return &obj.TypeMeta }

pkg/apis/batch/types.go

@@ -50,6 +50,29 @@ type JobList struct {
 	Items []Job `json:"items"`
 }
 
+// JobTemplate describes a template for creating copies of a predefined pod.
+type JobTemplate struct {
+	unversioned.TypeMeta `json:",inline"`
+	// Standard object's metadata.
+	// More info: http://releases.k8s.io/HEAD/docs/devel/api-conventions.md#metadata
+	api.ObjectMeta `json:"metadata,omitempty"`
+
+	// Template defines jobs that will be created from this template
+	// http://releases.k8s.io/HEAD/docs/devel/api-conventions.md#spec-and-status
+	Template JobTemplateSpec `json:"template,omitempty"`
+}
+
+// JobTemplateSpec describes the data a Job should have when created from a template
+type JobTemplateSpec struct {
+	// Standard object's metadata of the jobs created from this template.
+	// More info: http://releases.k8s.io/HEAD/docs/devel/api-conventions.md#metadata
+	api.ObjectMeta `json:"metadata,omitempty"`
+
+	// Specification of the desired behavior of the job.
+	// More info: http://releases.k8s.io/HEAD/docs/devel/api-conventions.md#spec-and-status
+	Spec JobSpec `json:"spec,omitempty"`
+}
+
 // JobSpec describes how the job execution will look like.
 type JobSpec struct {
 

pkg/apis/batch/v2alpha1/conversion.go

@@ -0,0 +1,113 @@
+/*
+Copyright 2016 The Kubernetes Authors 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 v2alpha1
+
+import (
+	"fmt"
+	"reflect"
+
+	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/api/unversioned"
+	v1 "k8s.io/kubernetes/pkg/api/v1"
+	"k8s.io/kubernetes/pkg/apis/batch"
+	"k8s.io/kubernetes/pkg/conversion"
+	"k8s.io/kubernetes/pkg/runtime"
+)
+
+func addConversionFuncs(scheme *runtime.Scheme) {
+	// Add non-generated conversion functions
+	err := scheme.AddConversionFuncs(
+		Convert_batch_JobSpec_To_v2alpha1_JobSpec,
+		Convert_v2alpha1_JobSpec_To_batch_JobSpec,
+	)
+	if err != nil {
+		// If one of the conversion functions is malformed, detect it immediately.
+		panic(err)
+	}
+
+	err = api.Scheme.AddFieldLabelConversionFunc("batch/v2alpha1", "Job",
+		func(label, value string) (string, string, error) {
+			switch label {
+			case "metadata.name", "metadata.namespace", "status.successful":
+				return label, value, nil
+			default:
+				return "", "", fmt.Errorf("field label not supported: %s", label)
+			}
+		})
+	if err != nil {
+		// If one of the conversion functions is malformed, detect it immediately.
+		panic(err)
+	}
+}
+
+func Convert_batch_JobSpec_To_v2alpha1_JobSpec(in *batch.JobSpec, out *JobSpec, s conversion.Scope) error {
+	if defaulting, found := s.DefaultingInterface(reflect.TypeOf(*in)); found {
+		defaulting.(func(*batch.JobSpec))(in)
+	}
+	out.Parallelism = in.Parallelism
+	out.Completions = in.Completions
+	out.ActiveDeadlineSeconds = in.ActiveDeadlineSeconds
+	// unable to generate simple pointer conversion for unversioned.LabelSelector -> v1.LabelSelector
+	if in.Selector != nil {
+		out.Selector = new(LabelSelector)
+		if err := Convert_unversioned_LabelSelector_To_v2alpha1_LabelSelector(in.Selector, out.Selector, s); err != nil {
+			return err
+		}
+	} else {
+		out.Selector = nil
+	}
+	if in.ManualSelector != nil {
+		out.ManualSelector = new(bool)
+		*out.ManualSelector = *in.ManualSelector
+	} else {
+		out.ManualSelector = nil
+	}
+
+	if err := v1.Convert_api_PodTemplateSpec_To_v1_PodTemplateSpec(&in.Template, &out.Template, s); err != nil {
+		return err
+	}
+	return nil
+}
+
+func Convert_v2alpha1_JobSpec_To_batch_JobSpec(in *JobSpec, out *batch.JobSpec, s conversion.Scope) error {
+	if defaulting, found := s.DefaultingInterface(reflect.TypeOf(*in)); found {
+		defaulting.(func(*JobSpec))(in)
+	}
+	out.Parallelism = in.Parallelism
+	out.Completions = in.Completions
+	out.ActiveDeadlineSeconds = in.ActiveDeadlineSeconds
+	// unable to generate simple pointer conversion for unversioned.LabelSelector -> v1.LabelSelector
+	if in.Selector != nil {
+		out.Selector = new(unversioned.LabelSelector)
+		if err := Convert_v2alpha1_LabelSelector_To_unversioned_LabelSelector(in.Selector, out.Selector, s); err != nil {
+			return err
+		}
+	} else {
+		out.Selector = nil
+	}
+	if in.ManualSelector != nil {
+		out.ManualSelector = new(bool)
+		*out.ManualSelector = *in.ManualSelector
+	} else {
+		out.ManualSelector = nil
+	}
+
+	if err := v1.Convert_v1_PodTemplateSpec_To_api_PodTemplateSpec(&in.Template, &out.Template, s); err != nil {
+		return err
+	}
+	return nil
+}

pkg/apis/batch/v2alpha1/defaults.go

@@ -0,0 +1,42 @@
+/*
+Copyright 2016 The Kubernetes Authors 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 v2alpha1
+
+import (
+	"k8s.io/kubernetes/pkg/runtime"
+)
+
+func addDefaultingFuncs(scheme *runtime.Scheme) {
+	scheme.AddDefaultingFuncs(
+		SetDefaults_Job,
+	)
+}
+
+func SetDefaults_Job(obj *Job) {
+	// For a non-parallel job, you can leave both `.spec.completions` and
+	// `.spec.parallelism` unset.  When both are unset, both are defaulted to 1.
+	if obj.Spec.Completions == nil && obj.Spec.Parallelism == nil {
+		obj.Spec.Completions = new(int32)
+		*obj.Spec.Completions = 1
+		obj.Spec.Parallelism = new(int32)
+		*obj.Spec.Parallelism = 1
+	}
+	if obj.Spec.Parallelism == nil {
+		obj.Spec.Parallelism = new(int32)
+		*obj.Spec.Parallelism = 1
+	}
+}

pkg/apis/batch/v2alpha1/doc.go

@@ -0,0 +1,18 @@
+/*
+Copyright 2016 The Kubernetes Authors 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.
+*/
+
+// +genconversion=true
+package v2alpha1

pkg/apis/batch/v2alpha1/register.go

@@ -0,0 +1,51 @@
+/*
+Copyright 2016 The Kubernetes Authors 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 v2alpha1
+
+import (
+	"k8s.io/kubernetes/pkg/api/unversioned"
+	"k8s.io/kubernetes/pkg/api/v1"
+	"k8s.io/kubernetes/pkg/runtime"
+	versionedwatch "k8s.io/kubernetes/pkg/watch/versioned"
+)
+
+// GroupName is the group name use in this package
+const GroupName = "batch"
+
+// SchemeGroupVersion is group version used to register these objects
+var SchemeGroupVersion = unversioned.GroupVersion{Group: GroupName, Version: "v2alpha1"}
+
+func AddToScheme(scheme *runtime.Scheme) {
+	addKnownTypes(scheme)
+	addDefaultingFuncs(scheme)
+	addConversionFuncs(scheme)
+}
+
+// Adds the list of known types to api.Scheme.
+func addKnownTypes(scheme *runtime.Scheme) {
+	scheme.AddKnownTypes(SchemeGroupVersion,
+		&Job{},
+		&JobList{},
+		&JobTemplate{},
+		&v1.ListOptions{},
+	)
+	versionedwatch.AddToGroupVersion(scheme, SchemeGroupVersion)
+}
+
+func (obj *JobTemplate) GetObjectKind() unversioned.ObjectKind { return &obj.TypeMeta }
+func (obj *Job) GetObjectKind() unversioned.ObjectKind         { return &obj.TypeMeta }
+func (obj *JobList) GetObjectKind() unversioned.ObjectKind     { return &obj.TypeMeta }

pkg/apis/batch/v2alpha1/types.go

@@ -0,0 +1,207 @@
+/*
+Copyright 2016 The Kubernetes Authors 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 v2alpha1
+
+import (
+	"k8s.io/kubernetes/pkg/api/unversioned"
+	"k8s.io/kubernetes/pkg/api/v1"
+)
+
+// Job represents the configuration of a single job.
+type Job struct {
+	unversioned.TypeMeta `json:",inline"`
+	// Standard object's metadata.
+	// More info: http://releases.k8s.io/HEAD/docs/devel/api-conventions.md#metadata
+	v1.ObjectMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
+
+	// Spec is a structure defining the expected behavior of a job.
+	// More info: http://releases.k8s.io/HEAD/docs/devel/api-conventions.md#spec-and-status
+	Spec JobSpec `json:"spec,omitempty" protobuf:"bytes,2,opt,name=spec"`
+
+	// Status is a structure describing current status of a job.
+	// More info: http://releases.k8s.io/HEAD/docs/devel/api-conventions.md#spec-and-status
+	Status JobStatus `json:"status,omitempty" protobuf:"bytes,3,opt,name=status"`
+}
+
+// JobList is a collection of jobs.
+type JobList struct {
+	unversioned.TypeMeta `json:",inline"`
+	// Standard list metadata
+	// More info: http://releases.k8s.io/HEAD/docs/devel/api-conventions.md#metadata
+	unversioned.ListMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
+
+	// Items is the list of Job.
+	Items []Job `json:"items" protobuf:"bytes,2,rep,name=items"`
+}
+
+// JobTemplate describes a template for creating copies of a predefined pod.
+type JobTemplate struct {
+	unversioned.TypeMeta `json:",inline"`
+	// Standard object's metadata.
+	// More info: http://releases.k8s.io/HEAD/docs/devel/api-conventions.md#metadata
+	v1.ObjectMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
+
+	// Template defines jobs that will be created from this template
+	// http://releases.k8s.io/HEAD/docs/devel/api-conventions.md#spec-and-status
+	Template JobTemplateSpec `json:"template,omitempty" protobuf:"bytes,2,opt,name=template"`
+}
+
+// JobTemplateSpec describes the data a Job should have when created from a template
+type JobTemplateSpec struct {
+	// Standard object's metadata of the jobs created from this template.
+	// More info: http://releases.k8s.io/HEAD/docs/devel/api-conventions.md#metadata
+	v1.ObjectMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
+
+	// Specification of the desired behavior of the job.
+	// More info: http://releases.k8s.io/HEAD/docs/devel/api-conventions.md#spec-and-status
+	Spec JobSpec `json:"spec,omitempty" protobuf:"bytes,2,opt,name=spec"`
+}
+
+// JobSpec describes how the job execution will look like.
+type JobSpec struct {
+
+	// Parallelism specifies the maximum desired number of pods the job should
+	// run at any given time. The actual number of pods running in steady state will
+	// be less than this number when ((.spec.completions - .status.successful) < .spec.parallelism),
+	// i.e. when the work left to do is less than max parallelism.
+	// More info: http://releases.k8s.io/HEAD/docs/user-guide/jobs.md
+	Parallelism *int32 `json:"parallelism,omitempty" protobuf:"varint,1,opt,name=parallelism"`
+
+	// Completions specifies the desired number of successfully finished pods the
+	// job should be run with.  Setting to nil means that the success of any
+	// pod signals the success of all pods, and allows parallelism to have any positive
+	// value.  Setting to 1 means that parallelism is limited to 1 and the success of that
+	// pod signals the success of the job.
+	// More info: http://releases.k8s.io/HEAD/docs/user-guide/jobs.md
+	Completions *int32 `json:"completions,omitempty" protobuf:"varint,2,opt,name=completions"`
+
+	// Optional duration in seconds relative to the startTime that the job may be active
+	// before the system tries to terminate it; value must be positive integer
+	ActiveDeadlineSeconds *int64 `json:"activeDeadlineSeconds,omitempty" protobuf:"varint,3,opt,name=activeDeadlineSeconds"`
+
+	// Selector is a label query over pods that should match the pod count.
+	// Normally, the system sets this field for you.
+	// More info: http://releases.k8s.io/HEAD/docs/user-guide/labels.md#label-selectors
+	Selector *LabelSelector `json:"selector,omitempty" protobuf:"bytes,4,opt,name=selector"`
+
+	// ManualSelector controls generation of pod labels and pod selectors.
+	// Leave `manualSelector` unset unless you are certain what you are doing.
+	// When false or unset, the system pick labels unique to this job
+	// and appends those labels to the pod template.  When true,
+	// the user is responsible for picking unique labels and specifying
+	// the selector.  Failure to pick a unique label may cause this
+	// and other jobs to not function correctly.  However, You may see
+	// `manualSelector=true` in jobs that were created with the old `extensions/v1beta1`
+	// API.
+	// More info: http://releases.k8s.io/HEAD/docs/design/selector-generation.md
+	ManualSelector *bool `json:"manualSelector,omitempty" protobuf:"varint,5,opt,name=manualSelector"`
+
+	// Template is the object that describes the pod that will be created when
+	// executing a job.
+	// More info: http://releases.k8s.io/HEAD/docs/user-guide/jobs.md
+	Template v1.PodTemplateSpec `json:"template" protobuf:"bytes,6,opt,name=template"`
+}
+
+// JobStatus represents the current state of a Job.
+type JobStatus struct {
+
+	// Conditions represent the latest available observations of an object's current state.
+	// More info: http://releases.k8s.io/HEAD/docs/user-guide/jobs.md
+	Conditions []JobCondition `json:"conditions,omitempty" patchStrategy:"merge" patchMergeKey:"type" protobuf:"bytes,1,rep,name=conditions"`
+
+	// StartTime represents time when the job was acknowledged by the Job Manager.
+	// It is not guaranteed to be set in happens-before order across separate operations.
+	// It is represented in RFC3339 form and is in UTC.
+	StartTime *unversioned.Time `json:"startTime,omitempty" protobuf:"bytes,2,opt,name=startTime"`
+
+	// CompletionTime represents time when the job was completed. It is not guaranteed to
+	// be set in happens-before order across separate operations.
+	// It is represented in RFC3339 form and is in UTC.
+	CompletionTime *unversioned.Time `json:"completionTime,omitempty" protobuf:"bytes,3,opt,name=completionTime"`
+
+	// Active is the number of actively running pods.
+	Active int32 `json:"active,omitempty" protobuf:"varint,4,opt,name=active"`
+
+	// Succeeded is the number of pods which reached Phase Succeeded.
+	Succeeded int32 `json:"succeeded,omitempty" protobuf:"varint,5,opt,name=succeeded"`
+
+	// Failed is the number of pods which reached Phase Failed.
+	Failed int32 `json:"failed,omitempty" protobuf:"varint,6,opt,name=failed"`
+}
+
+type JobConditionType string
+
+// These are valid conditions of a job.
+const (
+	// JobComplete means the job has completed its execution.
+	JobComplete JobConditionType = "Complete"
+	// JobFailed means the job has failed its execution.
+	JobFailed JobConditionType = "Failed"
+)
+
+// JobCondition describes current state of a job.
+type JobCondition struct {
+	// Type of job condition, Complete or Failed.
+	Type JobConditionType `json:"type" protobuf:"bytes,1,opt,name=type,casttype=JobConditionType"`
+	// Status of the condition, one of True, False, Unknown.
+	Status v1.ConditionStatus `json:"status" protobuf:"bytes,2,opt,name=status,casttype=k8s.io/kubernetes/pkg/api/v1.ConditionStatus"`
+	// Last time the condition was checked.
+	LastProbeTime unversioned.Time `json:"lastProbeTime,omitempty" protobuf:"bytes,3,opt,name=lastProbeTime"`
+	// Last time the condition transit from one status to another.
+	LastTransitionTime unversioned.Time `json:"lastTransitionTime,omitempty" protobuf:"bytes,4,opt,name=lastTransitionTime"`
+	// (brief) reason for the condition's last transition.
+	Reason string `json:"reason,omitempty" protobuf:"bytes,5,opt,name=reason"`
+	// Human readable message indicating details about last transition.
+	Message string `json:"message,omitempty" protobuf:"bytes,6,opt,name=message"`
+}
+
+// A label selector is a label query over a set of resources. The result of matchLabels and
+// matchExpressions are ANDed. An empty label selector matches all objects. A null
+// label selector matches no objects.
+type LabelSelector struct {
+	// matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels
+	// map is equivalent to an element of matchExpressions, whose key field is "key", the
+	// operator is "In", and the values array contains only "value". The requirements are ANDed.
+	MatchLabels map[string]string `json:"matchLabels,omitempty" protobuf:"bytes,1,rep,name=matchLabels"`
+	// matchExpressions is a list of label selector requirements. The requirements are ANDed.
+	MatchExpressions []LabelSelectorRequirement `json:"matchExpressions,omitempty" protobuf:"bytes,2,rep,name=matchExpressions"`
+}
+
+// A label selector requirement is a selector that contains values, a key, and an operator that
+// relates the key and values.
+type LabelSelectorRequirement struct {
+	// key is the label key that the selector applies to.
+	Key string `json:"key" patchStrategy:"merge" patchMergeKey:"key" protobuf:"bytes,1,opt,name=key"`
+	// operator represents a key's relationship to a set of values.
+	// Valid operators ard In, NotIn, Exists and DoesNotExist.
+	Operator LabelSelectorOperator `json:"operator" protobuf:"bytes,2,opt,name=operator,casttype=LabelSelectorOperator"`
+	// values is an array of string values. If the operator is In or NotIn,
+	// the values array must be non-empty. If the operator is Exists or DoesNotExist,
+	// the values array must be empty. This array is replaced during a strategic
+	// merge patch.
+	Values []string `json:"values,omitempty" protobuf:"bytes,3,rep,name=values"`
+}
+
+// A label selector operator is the set of operators that can be used in a selector requirement.
+type LabelSelectorOperator string
+
+const (
+	LabelSelectorOpIn           LabelSelectorOperator = "In"
+	LabelSelectorOpNotIn        LabelSelectorOperator = "NotIn"
+	LabelSelectorOpExists       LabelSelectorOperator = "Exists"
+	LabelSelectorOpDoesNotExist LabelSelectorOperator = "DoesNotExist"
+)

pkg/apis/extensions/register.go

@@ -55,6 +55,7 @@ func addKnownTypes(scheme *runtime.Scheme) {
 		&HorizontalPodAutoscalerList{},
 		&batch.Job{},
 		&batch.JobList{},
+		&batch.JobTemplate{},
 		&ReplicationControllerDummy{},
 		&Scale{},
 		&ThirdPartyResource{},

pkg/client/unversioned/batch.go

@@ -18,8 +18,10 @@ package unversioned
 
 import (
 	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/api/unversioned"
 	"k8s.io/kubernetes/pkg/apimachinery/registered"
 	"k8s.io/kubernetes/pkg/apis/batch"
+	"k8s.io/kubernetes/pkg/apis/batch/v2alpha1"
 	"k8s.io/kubernetes/pkg/client/restclient"
 )
 
@@ -38,7 +40,19 @@ func (c *BatchClient) Jobs(namespace string) JobInterface {
 
 func NewBatch(c *restclient.Config) (*BatchClient, error) {
 	config := *c
-	if err := setBatchDefaults(&config); err != nil {
+	if err := setBatchDefaults(&config, nil); err != nil {
+		return nil, err
+	}
+	client, err := restclient.RESTClientFor(&config)
+	if err != nil {
+		return nil, err
+	}
+	return &BatchClient{client}, nil
+}
+
+func NewBatchV2Alpha1(c *restclient.Config) (*BatchClient, error) {
+	config := *c
+	if err := setBatchDefaults(&config, &v2alpha1.SchemeGroupVersion); err != nil {
 		return nil, err
 	}
 	client, err := restclient.RESTClientFor(&config)
@@ -49,14 +63,22 @@ func NewBatch(c *restclient.Config) (*BatchClient, error) {
 }
 
 func NewBatchOrDie(c *restclient.Config) *BatchClient {
-	client, err := NewBatch(c)
+	var (
+		client *BatchClient
+		err    error
+	)
+	if c.ContentConfig.GroupVersion != nil && *c.ContentConfig.GroupVersion == v2alpha1.SchemeGroupVersion {
+		client, err = NewBatchV2Alpha1(c)
+	} else {
+		client, err = NewBatch(c)
+	}
 	if err != nil {
 		panic(err)
 	}
 	return client
 }
 
-func setBatchDefaults(config *restclient.Config) error {
+func setBatchDefaults(config *restclient.Config, gv *unversioned.GroupVersion) error {
 	// if batch group is not registered, return an error
 	g, err := registered.Group(batch.GroupName)
 	if err != nil {
@@ -69,6 +91,9 @@ func setBatchDefaults(config *restclient.Config) error {
 	// TODO: Unconditionally set the config.Version, until we fix the config.
 	//if config.Version == "" {
 	copyGroupVersion := g.GroupVersion
+	if gv != nil {
+		copyGroupVersion = *gv
+	}
 	config.GroupVersion = &copyGroupVersion
 	//}
 

pkg/master/master.go

@@ -38,6 +38,7 @@ import (
 	autoscalingapiv1 "k8s.io/kubernetes/pkg/apis/autoscaling/v1"
 	"k8s.io/kubernetes/pkg/apis/batch"
 	batchapiv1 "k8s.io/kubernetes/pkg/apis/batch/v1"
+	batchapiv2alpha1 "k8s.io/kubernetes/pkg/apis/batch/v2alpha1"
 	"k8s.io/kubernetes/pkg/apis/extensions"
 	extensionsapiv1beta1 "k8s.io/kubernetes/pkg/apis/extensions/v1beta1"
 	"k8s.io/kubernetes/pkg/apiserver"
@@ -306,8 +307,9 @@ func (m *Master) InstallAPIs(c *Config) {
 	}
 
 	// Install batch unless disabled.
-	if c.APIResourceConfigSource.AnyResourcesForVersionEnabled(batchapiv1.SchemeGroupVersion) {
+	if c.APIResourceConfigSource.AnyResourcesForVersionEnabled(batchapiv1.SchemeGroupVersion) ||
-		batchResources := m.getBatchResources(c)
+		c.APIResourceConfigSource.AnyResourcesForVersionEnabled(batchapiv2alpha1.SchemeGroupVersion) {
+		batchv1Resources := m.getBatchResources(c, batchapiv1.SchemeGroupVersion)
 		batchGroupMeta := registered.GroupOrDie(batch.GroupName)
 
 		// Hard code preferred group version to batch/v1
@@ -316,13 +318,18 @@ func (m *Master) InstallAPIs(c *Config) {
 		apiGroupInfo := genericapiserver.APIGroupInfo{
 			GroupMeta: *batchGroupMeta,
 			VersionedResourcesStorageMap: map[string]map[string]rest.Storage{
-				"v1": batchResources,
+				"v1": batchv1Resources,
 			},
 			OptionsExternalVersion: &registered.GroupOrDie(api.GroupName).GroupVersion,
 			Scheme:                 api.Scheme,
 			ParameterCodec:         api.ParameterCodec,
 			NegotiatedSerializer:   api.Codecs,
 		}
+		if c.APIResourceConfigSource.AnyResourcesForVersionEnabled(batchapiv2alpha1.SchemeGroupVersion) {
+			batchv2alpha1Resources := m.getBatchResources(c, batchapiv2alpha1.SchemeGroupVersion)
+			apiGroupInfo.VersionedResourcesStorageMap["v2alpha1"] = batchv2alpha1Resources
+		}
+
 		apiGroupsInfo = append(apiGroupsInfo, apiGroupInfo)
 
 		batchGVForDiscovery := unversioned.GroupVersionForDiscovery{
@@ -819,10 +826,7 @@ func (m *Master) getAutoscalingResources(c *Config) map[string]rest.Storage {
 }
 
 // getBatchResources returns the resources for batch api
-func (m *Master) getBatchResources(c *Config) map[string]rest.Storage {
+func (m *Master) getBatchResources(c *Config, version unversioned.GroupVersion) map[string]rest.Storage {
-	// TODO update when we support more than one version of this group
-	version := batchapiv1.SchemeGroupVersion
-
 	storage := map[string]rest.Storage{}
 	if c.APIResourceConfigSource.ResourceEnabled(version.WithResource("jobs")) {
 		jobsStorage, jobsStatusStorage := jobetcd.NewREST(m.GetRESTOptionsOrDie(c, batch.Resource("jobs")))