Combine input & output volumes

pkg/admission/admit_job.go

@@ -144,10 +144,9 @@ func validateJob(job v1alpha1.Job, reviewResponse *v1beta1.AdmissionResponse) st
 		}
 	}
 
-	//TODO(tommylikehu): Fix me and enable it.
-	//if validateInfo, ok := ValidateIO(job.Spec.Volumes); ok {
-	//	msg = msg + validateInfo
-	//}
+	if validateInfo, ok := ValidateIO(job.Spec.Volumes); ok {
+		msg = msg + validateInfo
+	}
 
 	if msg != "" {
 		reviewResponse.Allowed = false

pkg/admission/mutate_job.go

@@ -19,16 +19,13 @@ package admission
 import (
 	"encoding/json"
 	"fmt"
-	"math/rand"
-	"strconv"
-	"time"
-
 	"github.com/golang/glog"
+	"strconv"
 
 	"k8s.io/api/admission/v1beta1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 
-	v1alpha1 "volcano.sh/volcano/pkg/apis/batch/v1alpha1"
+	"volcano.sh/volcano/pkg/apis/batch/v1alpha1"
 )
 
 type patchOperation struct {
@@ -74,7 +71,6 @@ func MutateJobs(ar v1beta1.AdmissionReview) *v1beta1.AdmissionResponse {
 func createPatch(job v1alpha1.Job) ([]byte, error) {
 	var patch []patchOperation
 	patch = append(patch, mutateSpec(job.Spec.Tasks, "/spec/tasks")...)
-	patch = append(patch, mutateMetadata(job.ObjectMeta, "/metadata")...)
 
 	return json.Marshal(patch)
 }
@@ -95,30 +91,3 @@ func mutateSpec(tasks []v1alpha1.TaskSpec, basePath string) (patch []patchOperat
 
 	return patch
 }
-
-func mutateMetadata(metadata metav1.ObjectMeta, basePath string) (patch []patchOperation) {
-	if len(metadata.Annotations) == 0 {
-		metadata.Annotations = make(map[string]string)
-	}
-	randomStr := genRandomStr(5)
-	metadata.Annotations[PVCInputName] = fmt.Sprintf("%s-input-%s", metadata.Name, randomStr)
-	metadata.Annotations[PVCOutputName] = fmt.Sprintf("%s-output-%s", metadata.Name, randomStr)
-	patch = append(patch, patchOperation{
-		Op:    "replace",
-		Path:  basePath,
-		Value: metadata,
-	})
-
-	return patch
-}
-
-func genRandomStr(l int) string {
-	str := "0123456789abcdefghijklmnopqrstuvwxyz"
-	bytes := []byte(str)
-	result := []byte{}
-	r := rand.New(rand.NewSource(time.Now().UnixNano()))
-	for i := 0; i < l; i++ {
-		result = append(result, bytes[r.Intn(len(bytes))])
-	}
-	return string(result)
-}

pkg/apis/batch/v1alpha1/job.go

@@ -47,32 +47,29 @@ type JobSpec struct {
 	// +optional
 	MinAvailable int32 `json:"minAvailable,omitempty" protobuf:"bytes,2,opt,name=minAvailable"`
 
-	// The volume mount for input of Job
-	Input *VolumeSpec `json:"input,omitempty" protobuf:"bytes,3,opt,name=input"`
-
-	// The volume mount for output of Job
-	Output *VolumeSpec `json:"output,omitempty" protobuf:"bytes,4,opt,name=output"`
+	// The volumes mount on Job
+	Volumes []VolumeSpec `json:"volumes,omitempty" protobuf:"bytes,3,opt,name=volumes"`
 
 	// Tasks specifies the task specification of Job
 	// +optional
-	Tasks []TaskSpec `json:"tasks,omitempty" protobuf:"bytes,5,opt,name=tasks"`
+	Tasks []TaskSpec `json:"tasks,omitempty" protobuf:"bytes,4,opt,name=tasks"`
 
 	// Specifies the default lifecycle of tasks
 	// +optional
-	Policies []LifecyclePolicy `json:"policies,omitempty" protobuf:"bytes,6,opt,name=policies"`
+	Policies []LifecyclePolicy `json:"policies,omitempty" protobuf:"bytes,5,opt,name=policies"`
 
 	// Specifies the plugin of job
 	// Key is plugin name, value is the arguments of the plugin
 	// +optional
-	Plugins map[string][]string `json:"plugins,omitempty" protobuf:"bytes,7,opt,name=plugins"`
+	Plugins map[string][]string `json:"plugins,omitempty" protobuf:"bytes,6,opt,name=plugins"`
 
 	//Specifies the queue that will be used in the scheduler, "default" queue is used this leaves empty.
-	Queue string `json:"queue,omitempty" protobuf:"bytes,8,opt,name=queue"`
+	Queue string `json:"queue,omitempty" protobuf:"bytes,7,opt,name=queue"`
 
 	// Specifies the maximum number of retries before marking this Job failed.
 	// Defaults to 3.
 	// +optional
-	MaxRetry int32 `json:"maxRetry,omitempty" protobuf:"bytes,9,opt,name=maxRetry"`
+	MaxRetry int32 `json:"maxRetry,omitempty" protobuf:"bytes,8,opt,name=maxRetry"`
 }
 
 // VolumeSpec defines the specification of Volume, e.g. PVC
@@ -81,8 +78,11 @@ type VolumeSpec struct {
 	// not contain ':'.
 	MountPath string `json:"mountPath" protobuf:"bytes,1,opt,name=mountPath"`
 
+	// defined the PVC name
+	VolumeClaimName string `json:"volumeClaimName,omitempty" protobuf:"bytes,2,opt,name=volumeClaimName"`
+
 	// VolumeClaim defines the PVC used by the VolumeMount.
-	VolumeClaim *v1.PersistentVolumeClaimSpec `json:"volumeClaim,omitempty" protobuf:"bytes,1,opt,name=volumeClaim"`
+	VolumeClaim *v1.PersistentVolumeClaimSpec `json:"volumeClaim,omitempty" protobuf:"bytes,3,opt,name=volumeClaim"`
 }
 
 type JobEvent string

pkg/controllers/job/helpers/helpers.go

@@ -18,9 +18,11 @@ package helpers
 
 import (
 	"fmt"
+	"math/rand"
 	"strings"
+	"time"
 
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 )
 
 const (
@@ -39,3 +41,14 @@ func GetTaskIndex(pod *v1.Pod) string {
 func MakePodName(jobName string, taskName string, index int) string {
 	return fmt.Sprintf(PodNameFmt, jobName, taskName, index)
 }
+
+func GenRandomStr(l int) string {
+	str := "0123456789abcdefghijklmnopqrstuvwxyz"
+	bytes := []byte(str)
+	result := []byte{}
+	r := rand.New(rand.NewSource(time.Now().UnixNano()))
+	for i := 0; i < l; i++ {
+		result = append(result, bytes[r.Intn(len(bytes))])
+	}
+	return string(result)
+}

pkg/controllers/job/job_controller_util.go

@@ -21,12 +21,10 @@ import (
 
 	"github.com/golang/glog"
 
-	"k8s.io/api/core/v1"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-
 	kbapi "github.com/kubernetes-sigs/kube-batch/pkg/apis/scheduling/v1alpha1"
+	v1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 
-	admissioncontroller "volcano.sh/volcano/pkg/admission"
 	vkv1 "volcano.sh/volcano/pkg/apis/batch/v1alpha1"
 	"volcano.sh/volcano/pkg/apis/helpers"
 	"volcano.sh/volcano/pkg/controllers/apis"
@@ -54,7 +52,7 @@ func createJobPod(job *vkv1.Job, template *v1.PodTemplateSpec, ix int) *v1.Pod {
 
 	pod := &v1.Pod{
 		ObjectMeta: metav1.ObjectMeta{
-			Name:      MakePodName(job.Name, template.Name, ix),
+			Name:      vkjobhelpers.MakePodName(job.Name, template.Name, ix),
 			Namespace: job.Namespace,
 			OwnerReferences: []metav1.OwnerReference{
 				*metav1.NewControllerRef(job, helpers.JobKind),
@@ -70,61 +68,34 @@ func createJobPod(job *vkv1.Job, template *v1.PodTemplateSpec, ix int) *v1.Pod {
 		pod.Spec.SchedulerName = job.Spec.SchedulerName
 	}
 
-	inputPVC := job.Annotations[admissioncontroller.PVCInputName]
-	outputPVC := job.Annotations[admissioncontroller.PVCOutputName]
-	if job.Spec.Output != nil {
-		if job.Spec.Output.VolumeClaim == nil {
-			volume := v1.Volume{
-				Name: outputPVC,
-			}
-			volume.EmptyDir = &v1.EmptyDirVolumeSource{}
-			pod.Spec.Volumes = append(pod.Spec.Volumes, volume)
-		} else {
-			volume := v1.Volume{
-				Name: outputPVC,
-			}
-			volume.PersistentVolumeClaim = &v1.PersistentVolumeClaimVolumeSource{
-				ClaimName: outputPVC,
-			}
-
-			pod.Spec.Volumes = append(pod.Spec.Volumes, volume)
-		}
-
-		for i, c := range pod.Spec.Containers {
-			vm := v1.VolumeMount{
-				MountPath: job.Spec.Output.MountPath,
-				Name:      outputPVC,
-			}
-			pod.Spec.Containers[i].VolumeMounts = append(c.VolumeMounts, vm)
-		}
-	}
-
-	if job.Spec.Input != nil {
-		if job.Spec.Input.VolumeClaim == nil {
-			volume := v1.Volume{
-				Name: inputPVC,
-			}
-			volume.EmptyDir = &v1.EmptyDirVolumeSource{}
-			pod.Spec.Volumes = append(pod.Spec.Volumes, volume)
-		} else {
-			volume := v1.Volume{
-				Name: inputPVC,
-			}
-			volume.PersistentVolumeClaim = &v1.PersistentVolumeClaimVolumeSource{
-				ClaimName: inputPVC,
+	volumeMap := make(map[string]bool)
+	for _, volume := range job.Spec.Volumes {
+		vcName := volume.VolumeClaimName
+		if _, ok := volumeMap[vcName]; !ok {
+			if _, ok := job.Status.ControlledResources["volume-emptyDir-"+vcName]; ok && volume.VolumeClaim == nil {
+				volume := v1.Volume{
+					Name: vcName,
+				}
+				volume.EmptyDir = &v1.EmptyDirVolumeSource{}
+				pod.Spec.Volumes = append(pod.Spec.Volumes, volume)
+			} else {
+				volume := v1.Volume{
+					Name: vcName,
+				}
+				volume.PersistentVolumeClaim = &v1.PersistentVolumeClaimVolumeSource{
+					ClaimName: vcName,
+				}
+				pod.Spec.Volumes = append(pod.Spec.Volumes, volume)
 			}
-
-			pod.Spec.Volumes = append(pod.Spec.Volumes, volume)
+			volumeMap[vcName] = true
 		}
 
 		for i, c := range pod.Spec.Containers {
 			vm := v1.VolumeMount{
-				MountPath: job.Spec.Input.MountPath,
-				Name:      inputPVC,
+				MountPath: volume.MountPath,
+				Name:      vcName,
 			}
-
 			pod.Spec.Containers[i].VolumeMounts = append(c.VolumeMounts, vm)
-
 		}
 	}