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Add specific types for PredicateMetadata and PredicateMetadataProducer

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This commit is contained in:
Bobby (Babak) Salamat 2017-08-17 17:08:41 -07:00
parent a4edc6c871
commit 20931d7a68
15 changed files with 98 additions and 56 deletions
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27
plugin/pkg/scheduler/algorithm/predicates/metadata.go
View File

@ -54,6 +54,9 @@ type predicateMetadata struct {
serviceAffinityMatchingPodServices []*v1.Service serviceAffinityMatchingPodServices []*v1.Service
} }
// Ensure that predicateMetadata implements algorithm.PredicateMetadata.
var _ algorithm.PredicateMetadata = &predicateMetadata{}
// PredicateMetadataProducer: Helper types/variables... // PredicateMetadataProducer: Helper types/variables...
type PredicateMetadataProducer func(pm *predicateMetadata) type PredicateMetadataProducer func(pm *predicateMetadata)
@ -66,7 +69,7 @@ func RegisterPredicateMetadataProducer(predicateName string, precomp PredicateMe
predicateMetadataProducers[predicateName] = precomp predicateMetadataProducers[predicateName] = precomp
} }
func NewPredicateMetadataFactory(podLister algorithm.PodLister) algorithm.MetadataProducer { func NewPredicateMetadataFactory(podLister algorithm.PodLister) algorithm.PredicateMetadataProducer {
factory := &PredicateMetadataFactory{ factory := &PredicateMetadataFactory{
podLister, podLister,
} }
@ -74,7 +77,7 @@ func NewPredicateMetadataFactory(podLister algorithm.PodLister) algorithm.Metada
} }
// GetMetadata returns the predicateMetadata used which will be used by various predicates. // GetMetadata returns the predicateMetadata used which will be used by various predicates.
func (pfactory *PredicateMetadataFactory) GetMetadata(pod *v1.Pod, nodeNameToInfoMap map[string]*schedulercache.NodeInfo) interface{} { func (pfactory *PredicateMetadataFactory) GetMetadata(pod *v1.Pod, nodeNameToInfoMap map[string]*schedulercache.NodeInfo) algorithm.PredicateMetadata {
// If we cannot compute metadata, just return nil // If we cannot compute metadata, just return nil
if pod == nil { if pod == nil {
return nil return nil
@ -159,3 +162,23 @@ func (meta *predicateMetadata) AddPod(addedPod *v1.Pod, nodeInfo *schedulercache
} }
return nil return nil
} }
// ShallowCopy copies a metadata struct into a new struct and creates a copy of
// its maps and slices, but it does not copy the contents of pointer values.
func (meta *predicateMetadata) ShallowCopy() algorithm.PredicateMetadata {
newPredMeta := &predicateMetadata{
pod: meta.pod,
podBestEffort: meta.podBestEffort,
podRequest: meta.podRequest,
serviceAffinityInUse: meta.serviceAffinityInUse,
}
for k, v := range meta.podPorts {
newPredMeta.podPorts[k] = v
}
for k, v := range meta.matchingAntiAffinityTerms {
newPredMeta.matchingAntiAffinityTerms[k] = append([]matchingPodAntiAffinityTerm(nil), v...)
}
newPredMeta.serviceAffinityMatchingPodServices = append([]*v1.Service(nil), meta.serviceAffinityMatchingPodServices...)
newPredMeta.serviceAffinityMatchingPodList = append([]*v1.Pod(nil), meta.serviceAffinityMatchingPodList...)
return (algorithm.PredicateMetadata)(newPredMeta)
}

40
plugin/pkg/scheduler/algorithm/predicates/predicates.go
View File

@ -152,7 +152,7 @@ func isVolumeConflict(volume v1.Volume, pod *v1.Pod) bool {
// - Ceph RBD forbids if any two pods share at least same monitor, and match pool and image. // - Ceph RBD forbids if any two pods share at least same monitor, and match pool and image.
// - ISCSI forbids if any two pods share at least same IQN, LUN and Target // - ISCSI forbids if any two pods share at least same IQN, LUN and Target
// TODO: migrate this into some per-volume specific code? // TODO: migrate this into some per-volume specific code?
func NoDiskConflict(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func NoDiskConflict(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
for _, v := range pod.Spec.Volumes { for _, v := range pod.Spec.Volumes {
for _, ev := range nodeInfo.Pods() { for _, ev := range nodeInfo.Pods() {
if isVolumeConflict(v, ev) { if isVolumeConflict(v, ev) {
@ -250,7 +250,7 @@ func (c *MaxPDVolumeCountChecker) filterVolumes(volumes []v1.Volume, namespace s
return nil return nil
} }
func (c *MaxPDVolumeCountChecker) predicate(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func (c *MaxPDVolumeCountChecker) predicate(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
// If a pod doesn't have any volume attached to it, the predicate will always be true. // If a pod doesn't have any volume attached to it, the predicate will always be true.
// Thus we make a fast path for it, to avoid unnecessary computations in this case. // Thus we make a fast path for it, to avoid unnecessary computations in this case.
if len(pod.Spec.Volumes) == 0 { if len(pod.Spec.Volumes) == 0 {
@ -371,7 +371,7 @@ func NewVolumeZonePredicate(pvInfo PersistentVolumeInfo, pvcInfo PersistentVolum
return c.predicate return c.predicate
} }
func (c *VolumeZoneChecker) predicate(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func (c *VolumeZoneChecker) predicate(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
// If a pod doesn't have any volume attached to it, the predicate will always be true. // If a pod doesn't have any volume attached to it, the predicate will always be true.
// Thus we make a fast path for it, to avoid unnecessary computations in this case. // Thus we make a fast path for it, to avoid unnecessary computations in this case.
if len(pod.Spec.Volumes) == 0 { if len(pod.Spec.Volumes) == 0 {
@ -517,7 +517,7 @@ func podName(pod *v1.Pod) string {
// PodFitsResources checks if a node has sufficient resources, such as cpu, memory, gpu, opaque int resources etc to run a pod. // PodFitsResources checks if a node has sufficient resources, such as cpu, memory, gpu, opaque int resources etc to run a pod.
// First return value indicates whether a node has sufficient resources to run a pod while the second return value indicates the // First return value indicates whether a node has sufficient resources to run a pod while the second return value indicates the
// predicate failure reasons if the node has insufficient resources to run the pod. // predicate failure reasons if the node has insufficient resources to run the pod.
func PodFitsResources(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func PodFitsResources(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
node := nodeInfo.Node() node := nodeInfo.Node()
if node == nil { if node == nil {
return false, nil, fmt.Errorf("node not found") return false, nil, fmt.Errorf("node not found")
@ -635,7 +635,7 @@ func podMatchesNodeLabels(pod *v1.Pod, node *v1.Node) bool {
} }
// PodMatchNodeSelector checks if a pod node selector matches the node label. // PodMatchNodeSelector checks if a pod node selector matches the node label.
func PodMatchNodeSelector(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func PodMatchNodeSelector(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
node := nodeInfo.Node() node := nodeInfo.Node()
if node == nil { if node == nil {
return false, nil, fmt.Errorf("node not found") return false, nil, fmt.Errorf("node not found")
@ -647,7 +647,7 @@ func PodMatchNodeSelector(pod *v1.Pod, meta interface{}, nodeInfo *schedulercach
} }
// PodFitsHost checks if a pod spec node name matches the current node. // PodFitsHost checks if a pod spec node name matches the current node.
func PodFitsHost(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func PodFitsHost(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
if len(pod.Spec.NodeName) == 0 { if len(pod.Spec.NodeName) == 0 {
return true, nil, nil return true, nil, nil
} }
@ -686,7 +686,7 @@ func NewNodeLabelPredicate(labels []string, presence bool) algorithm.FitPredicat
// Alternately, eliminating nodes that have a certain label, regardless of value, is also useful // Alternately, eliminating nodes that have a certain label, regardless of value, is also useful
// A node may have a label with "retiring" as key and the date as the value // A node may have a label with "retiring" as key and the date as the value
// and it may be desirable to avoid scheduling new pods on this node // and it may be desirable to avoid scheduling new pods on this node
func (n *NodeLabelChecker) CheckNodeLabelPresence(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func (n *NodeLabelChecker) CheckNodeLabelPresence(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
node := nodeInfo.Node() node := nodeInfo.Node()
if node == nil { if node == nil {
return false, nil, fmt.Errorf("node not found") return false, nil, fmt.Errorf("node not found")
@ -769,7 +769,7 @@ func NewServiceAffinityPredicate(podLister algorithm.PodLister, serviceLister al
// //
// WARNING: This Predicate is NOT guaranteed to work if some of the predicateMetadata data isn't precomputed... // WARNING: This Predicate is NOT guaranteed to work if some of the predicateMetadata data isn't precomputed...
// For that reason it is not exported, i.e. it is highly coupled to the implementation of the FitPredicate construction. // For that reason it is not exported, i.e. it is highly coupled to the implementation of the FitPredicate construction.
func (s *ServiceAffinity) checkServiceAffinity(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func (s *ServiceAffinity) checkServiceAffinity(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
var services []*v1.Service var services []*v1.Service
var pods []*v1.Pod var pods []*v1.Pod
if pm, ok := meta.(*predicateMetadata); ok && (pm.serviceAffinityMatchingPodList != nil || pm.serviceAffinityMatchingPodServices != nil) { if pm, ok := meta.(*predicateMetadata); ok && (pm.serviceAffinityMatchingPodList != nil || pm.serviceAffinityMatchingPodServices != nil) {
@ -808,7 +808,7 @@ func (s *ServiceAffinity) checkServiceAffinity(pod *v1.Pod, meta interface{}, no
} }
// PodFitsHostPorts checks if a node has free ports for the requested pod ports. // PodFitsHostPorts checks if a node has free ports for the requested pod ports.
func PodFitsHostPorts(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func PodFitsHostPorts(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
var wantPorts map[int]bool var wantPorts map[int]bool
if predicateMeta, ok := meta.(*predicateMetadata); ok { if predicateMeta, ok := meta.(*predicateMetadata); ok {
wantPorts = predicateMeta.podPorts wantPorts = predicateMeta.podPorts
@ -849,7 +849,7 @@ func haveSame(a1, a2 []string) bool {
// GeneralPredicates checks whether noncriticalPredicates and EssentialPredicates pass. noncriticalPredicates are the predicates // GeneralPredicates checks whether noncriticalPredicates and EssentialPredicates pass. noncriticalPredicates are the predicates
// that only non-critical pods need and EssentialPredicates are the predicates that all pods, including critical pods, need // that only non-critical pods need and EssentialPredicates are the predicates that all pods, including critical pods, need
func GeneralPredicates(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func GeneralPredicates(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
var predicateFails []algorithm.PredicateFailureReason var predicateFails []algorithm.PredicateFailureReason
fit, reasons, err := noncriticalPredicates(pod, meta, nodeInfo) fit, reasons, err := noncriticalPredicates(pod, meta, nodeInfo)
if err != nil { if err != nil {
@ -871,7 +871,7 @@ func GeneralPredicates(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.N
} }
// noncriticalPredicates are the predicates that only non-critical pods need // noncriticalPredicates are the predicates that only non-critical pods need
func noncriticalPredicates(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func noncriticalPredicates(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
var predicateFails []algorithm.PredicateFailureReason var predicateFails []algorithm.PredicateFailureReason
fit, reasons, err := PodFitsResources(pod, meta, nodeInfo) fit, reasons, err := PodFitsResources(pod, meta, nodeInfo)
if err != nil { if err != nil {
@ -885,7 +885,7 @@ func noncriticalPredicates(pod *v1.Pod, meta interface{}, nodeInfo *schedulercac
} }
// EssentialPredicates are the predicates that all pods, including critical pods, need // EssentialPredicates are the predicates that all pods, including critical pods, need
func EssentialPredicates(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func EssentialPredicates(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
var predicateFails []algorithm.PredicateFailureReason var predicateFails []algorithm.PredicateFailureReason
fit, reasons, err := PodFitsHost(pod, meta, nodeInfo) fit, reasons, err := PodFitsHost(pod, meta, nodeInfo)
if err != nil { if err != nil {
@ -931,7 +931,7 @@ func NewPodAffinityPredicate(info NodeInfo, podLister algorithm.PodLister) algor
// InterPodAffinityMatches checks if a pod can be scheduled on the specified node with pod affinity/anti-affinity configuration. // InterPodAffinityMatches checks if a pod can be scheduled on the specified node with pod affinity/anti-affinity configuration.
// First return value indicates whether a pod can be scheduled on the specified node while the second return value indicates the // First return value indicates whether a pod can be scheduled on the specified node while the second return value indicates the
// predicate failure reasons if the pod cannot be scheduled on the specified node. // predicate failure reasons if the pod cannot be scheduled on the specified node.
func (c *PodAffinityChecker) InterPodAffinityMatches(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func (c *PodAffinityChecker) InterPodAffinityMatches(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
node := nodeInfo.Node() node := nodeInfo.Node()
if node == nil { if node == nil {
return false, nil, fmt.Errorf("node not found") return false, nil, fmt.Errorf("node not found")
@ -1116,7 +1116,7 @@ func (c *PodAffinityChecker) getMatchingAntiAffinityTerms(pod *v1.Pod, allPods [
// Checks if scheduling the pod onto this node would break any anti-affinity // Checks if scheduling the pod onto this node would break any anti-affinity
// rules indicated by the existing pods. // rules indicated by the existing pods.
func (c *PodAffinityChecker) satisfiesExistingPodsAntiAffinity(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) bool { func (c *PodAffinityChecker) satisfiesExistingPodsAntiAffinity(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) bool {
node := nodeInfo.Node() node := nodeInfo.Node()
if node == nil { if node == nil {
return false return false
@ -1224,7 +1224,7 @@ func (c *PodAffinityChecker) satisfiesPodsAffinityAntiAffinity(pod *v1.Pod, node
} }
// PodToleratesNodeTaints checks if a pod tolerations can tolerate the node taints // PodToleratesNodeTaints checks if a pod tolerations can tolerate the node taints
func PodToleratesNodeTaints(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func PodToleratesNodeTaints(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
return podToleratesNodeTaints(pod, nodeInfo, func(t *v1.Taint) bool { return podToleratesNodeTaints(pod, nodeInfo, func(t *v1.Taint) bool {
// PodToleratesNodeTaints is only interested in NoSchedule and NoExecute taints. // PodToleratesNodeTaints is only interested in NoSchedule and NoExecute taints.
return t.Effect == v1.TaintEffectNoSchedule || t.Effect == v1.TaintEffectNoExecute return t.Effect == v1.TaintEffectNoSchedule || t.Effect == v1.TaintEffectNoExecute
@ -1232,7 +1232,7 @@ func PodToleratesNodeTaints(pod *v1.Pod, meta interface{}, nodeInfo *schedulerca
} }
// PodToleratesNodeNoExecuteTaints checks if a pod tolerations can tolerate the node's NoExecute taints // PodToleratesNodeNoExecuteTaints checks if a pod tolerations can tolerate the node's NoExecute taints
func PodToleratesNodeNoExecuteTaints(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func PodToleratesNodeNoExecuteTaints(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
return podToleratesNodeTaints(pod, nodeInfo, func(t *v1.Taint) bool { return podToleratesNodeTaints(pod, nodeInfo, func(t *v1.Taint) bool {
return t.Effect == v1.TaintEffectNoExecute return t.Effect == v1.TaintEffectNoExecute
}) })
@ -1257,7 +1257,7 @@ func isPodBestEffort(pod *v1.Pod) bool {
// CheckNodeMemoryPressurePredicate checks if a pod can be scheduled on a node // CheckNodeMemoryPressurePredicate checks if a pod can be scheduled on a node
// reporting memory pressure condition. // reporting memory pressure condition.
func CheckNodeMemoryPressurePredicate(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func CheckNodeMemoryPressurePredicate(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
var podBestEffort bool var podBestEffort bool
if predicateMeta, ok := meta.(*predicateMetadata); ok { if predicateMeta, ok := meta.(*predicateMetadata); ok {
podBestEffort = predicateMeta.podBestEffort podBestEffort = predicateMeta.podBestEffort
@ -1279,7 +1279,7 @@ func CheckNodeMemoryPressurePredicate(pod *v1.Pod, meta interface{}, nodeInfo *s
// CheckNodeDiskPressurePredicate checks if a pod can be scheduled on a node // CheckNodeDiskPressurePredicate checks if a pod can be scheduled on a node
// reporting disk pressure condition. // reporting disk pressure condition.
func CheckNodeDiskPressurePredicate(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func CheckNodeDiskPressurePredicate(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
// check if node is under disk pressure // check if node is under disk pressure
if nodeInfo.DiskPressureCondition() == v1.ConditionTrue { if nodeInfo.DiskPressureCondition() == v1.ConditionTrue {
return false, []algorithm.PredicateFailureReason{ErrNodeUnderDiskPressure}, nil return false, []algorithm.PredicateFailureReason{ErrNodeUnderDiskPressure}, nil
@ -1289,7 +1289,7 @@ func CheckNodeDiskPressurePredicate(pod *v1.Pod, meta interface{}, nodeInfo *sch
// CheckNodeConditionPredicate checks if a pod can be scheduled on a node reporting out of disk, // CheckNodeConditionPredicate checks if a pod can be scheduled on a node reporting out of disk,
// network unavailable and not ready condition. Only node conditions are accounted in this predicate. // network unavailable and not ready condition. Only node conditions are accounted in this predicate.
func CheckNodeConditionPredicate(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func CheckNodeConditionPredicate(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
reasons := []algorithm.PredicateFailureReason{} reasons := []algorithm.PredicateFailureReason{}
if nodeInfo == nil || nodeInfo.Node() == nil { if nodeInfo == nil || nodeInfo.Node() == nil {
@ -1337,7 +1337,7 @@ func NewVolumeNodePredicate(pvInfo PersistentVolumeInfo, pvcInfo PersistentVolum
return c.predicate return c.predicate
} }
func (c *VolumeNodeChecker) predicate(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func (c *VolumeNodeChecker) predicate(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
if !utilfeature.DefaultFeatureGate.Enabled(features.PersistentLocalVolumes) { if !utilfeature.DefaultFeatureGate.Enabled(features.PersistentLocalVolumes) {
return true, nil, nil return true, nil, nil
} }

4
plugin/pkg/scheduler/algorithm/predicates/predicates_test.go
View File

@ -139,7 +139,7 @@ func newResourceInitPod(pod *v1.Pod, usage ...schedulercache.Resource) *v1.Pod {
return pod return pod
} }
func PredicateMetadata(p *v1.Pod, nodeInfo map[string]*schedulercache.NodeInfo) interface{} { func PredicateMetadata(p *v1.Pod, nodeInfo map[string]*schedulercache.NodeInfo) algorithm.PredicateMetadata {
pm := PredicateMetadataFactory{schedulertesting.FakePodLister{p}} pm := PredicateMetadataFactory{schedulertesting.FakePodLister{p}}
return pm.GetMetadata(p, nodeInfo) return pm.GetMetadata(p, nodeInfo)
} }
@ -2984,7 +2984,7 @@ func TestInterPodAffinityWithMultipleNodes(t *testing.T) {
nodeInfo.SetNode(&node) nodeInfo.SetNode(&node)
nodeInfoMap := map[string]*schedulercache.NodeInfo{node.Name: nodeInfo} nodeInfoMap := map[string]*schedulercache.NodeInfo{node.Name: nodeInfo}
var meta interface{} = nil var meta algorithm.PredicateMetadata = nil
if !test.nometa { if !test.nometa {
meta = PredicateMetadata(test.pod, nodeInfoMap) meta = PredicateMetadata(test.pod, nodeInfoMap)

21
plugin/pkg/scheduler/algorithm/types.go
View File

@ -27,8 +27,7 @@ import (
// FitPredicate is a function that indicates if a pod fits into an existing node. // FitPredicate is a function that indicates if a pod fits into an existing node.
// The failure information is given by the error. // The failure information is given by the error.
// TODO: Change interface{} to a specific type. type FitPredicate func(pod *v1.Pod, meta PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []PredicateFailureReason, error)
type FitPredicate func(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []PredicateFailureReason, error)
// PriorityMapFunction is a function that computes per-node results for a given node. // PriorityMapFunction is a function that computes per-node results for a given node.
// TODO: Figure out the exact API of this method. // TODO: Figure out the exact API of this method.
@ -41,7 +40,12 @@ type PriorityMapFunction func(pod *v1.Pod, meta interface{}, nodeInfo *scheduler
// TODO: Change interface{} to a specific type. // TODO: Change interface{} to a specific type.
type PriorityReduceFunction func(pod *v1.Pod, meta interface{}, nodeNameToInfo map[string]*schedulercache.NodeInfo, result schedulerapi.HostPriorityList) error type PriorityReduceFunction func(pod *v1.Pod, meta interface{}, nodeNameToInfo map[string]*schedulercache.NodeInfo, result schedulerapi.HostPriorityList) error
// MetadataProducer is a function that computes metadata for a given pod. // PredicateMetadataProducer is a function that computes predicate metadata for a given pod.
type PredicateMetadataProducer func(pod *v1.Pod, nodeNameToInfo map[string]*schedulercache.NodeInfo) PredicateMetadata
// MetadataProducer is a function that computes metadata for a given pod. This
// is now used for only for priority functions. For predicates please use PredicateMetadataProducer.
// TODO: Rename this once we have a specific type for priority metadata producer.
type MetadataProducer func(pod *v1.Pod, nodeNameToInfo map[string]*schedulercache.NodeInfo) interface{} type MetadataProducer func(pod *v1.Pod, nodeNameToInfo map[string]*schedulercache.NodeInfo) interface{}
// DEPRECATED // DEPRECATED
@ -57,6 +61,11 @@ type PriorityConfig struct {
Weight int Weight int
} }
// EmptyPredicateMetadataProducer returns a no-op MetadataProducer type.
func EmptyPredicateMetadataProducer(pod *v1.Pod, nodeNameToInfo map[string]*schedulercache.NodeInfo) PredicateMetadata {
return nil
}
// EmptyMetadataProducer returns a no-op MetadataProducer type. // EmptyMetadataProducer returns a no-op MetadataProducer type.
func EmptyMetadataProducer(pod *v1.Pod, nodeNameToInfo map[string]*schedulercache.NodeInfo) interface{} { func EmptyMetadataProducer(pod *v1.Pod, nodeNameToInfo map[string]*schedulercache.NodeInfo) interface{} {
return nil return nil
@ -147,3 +156,9 @@ type EmptyStatefulSetLister struct{}
func (f EmptyStatefulSetLister) GetPodStatefulSets(pod *v1.Pod) (sss []*apps.StatefulSet, err error) { func (f EmptyStatefulSetLister) GetPodStatefulSets(pod *v1.Pod) (sss []*apps.StatefulSet, err error) {
return nil, nil return nil, nil
} }
type PredicateMetadata interface {
ShallowCopy() PredicateMetadata
AddPod(addedPod *v1.Pod, nodeInfo *schedulercache.NodeInfo) error
RemovePod(deletedPod *v1.Pod) error
}

2
plugin/pkg/scheduler/algorithmprovider/defaults/defaults.go
View File

@ -52,7 +52,7 @@ const (
func init() { func init() {
// Register functions that extract metadata used by predicates and priorities computations. // Register functions that extract metadata used by predicates and priorities computations.
factory.RegisterPredicateMetadataProducerFactory( factory.RegisterPredicateMetadataProducerFactory(
func(args factory.PluginFactoryArgs) algorithm.MetadataProducer { func(args factory.PluginFactoryArgs) algorithm.PredicateMetadataProducer {
return predicates.NewPredicateMetadataFactory(args.PodLister) return predicates.NewPredicateMetadataFactory(args.PodLister)
}) })
factory.RegisterPriorityMetadataProducerFactory( factory.RegisterPriorityMetadataProducerFactory(

2
plugin/pkg/scheduler/core/extender_test.go
View File

@ -314,7 +314,7 @@ func TestGenericSchedulerWithExtenders(t *testing.T) {
cache.AddNode(&v1.Node{ObjectMeta: metav1.ObjectMeta{Name: name}}) cache.AddNode(&v1.Node{ObjectMeta: metav1.ObjectMeta{Name: name}})
} }
scheduler := NewGenericScheduler( scheduler := NewGenericScheduler(
cache, nil, test.predicates, algorithm.EmptyMetadataProducer, test.prioritizers, algorithm.EmptyMetadataProducer, extenders) cache, nil, test.predicates, algorithm.EmptyPredicateMetadataProducer, test.prioritizers, algorithm.EmptyMetadataProducer, extenders)
podIgnored := &v1.Pod{} podIgnored := &v1.Pod{}
machine, err := scheduler.Schedule(podIgnored, schedulertesting.FakeNodeLister(makeNodeList(test.nodes))) machine, err := scheduler.Schedule(podIgnored, schedulertesting.FakeNodeLister(makeNodeList(test.nodes)))
if test.expectsErr { if test.expectsErr {

12
plugin/pkg/scheduler/core/generic_scheduler.go
View File

@ -74,7 +74,7 @@ type genericScheduler struct {
equivalenceCache *EquivalenceCache equivalenceCache *EquivalenceCache
predicates map[string]algorithm.FitPredicate predicates map[string]algorithm.FitPredicate
priorityMetaProducer algorithm.MetadataProducer priorityMetaProducer algorithm.MetadataProducer
predicateMetaProducer algorithm.MetadataProducer predicateMetaProducer algorithm.PredicateMetadataProducer
prioritizers []algorithm.PriorityConfig prioritizers []algorithm.PriorityConfig
extenders []algorithm.SchedulerExtender extenders []algorithm.SchedulerExtender
pods algorithm.PodLister pods algorithm.PodLister
@ -188,7 +188,7 @@ func findNodesThatFit(
nodes []*v1.Node, nodes []*v1.Node,
predicateFuncs map[string]algorithm.FitPredicate, predicateFuncs map[string]algorithm.FitPredicate,
extenders []algorithm.SchedulerExtender, extenders []algorithm.SchedulerExtender,
metadataProducer algorithm.MetadataProducer, metadataProducer algorithm.PredicateMetadataProducer,
ecache *EquivalenceCache, ecache *EquivalenceCache,
) ([]*v1.Node, FailedPredicateMap, error) { ) ([]*v1.Node, FailedPredicateMap, error) {
var filtered []*v1.Node var filtered []*v1.Node
@ -253,7 +253,7 @@ func findNodesThatFit(
} }
// Checks whether node with a given name and NodeInfo satisfies all predicateFuncs. // Checks whether node with a given name and NodeInfo satisfies all predicateFuncs.
func podFitsOnNode(pod *v1.Pod, meta interface{}, info *schedulercache.NodeInfo, predicateFuncs map[string]algorithm.FitPredicate, func podFitsOnNode(pod *v1.Pod, meta algorithm.PredicateMetadata, info *schedulercache.NodeInfo, predicateFuncs map[string]algorithm.FitPredicate,
ecache *EquivalenceCache) (bool, []algorithm.PredicateFailureReason, error) { ecache *EquivalenceCache) (bool, []algorithm.PredicateFailureReason, error) {
var ( var (
equivalenceHash uint64 equivalenceHash uint64
@ -450,7 +450,7 @@ func selectNodesForPreemption(pod *v1.Pod,
nodeNameToInfo map[string]*schedulercache.NodeInfo, nodeNameToInfo map[string]*schedulercache.NodeInfo,
nodes []*v1.Node, nodes []*v1.Node,
predicates map[string]algorithm.FitPredicate, predicates map[string]algorithm.FitPredicate,
metadataProducer algorithm.MetadataProducer, metadataProducer algorithm.PredicateMetadataProducer,
) map[string][]*v1.Pod { ) map[string][]*v1.Pod {
nodeNameToPods := map[string][]*v1.Pod{} nodeNameToPods := map[string][]*v1.Pod{}
@ -483,7 +483,7 @@ func selectNodesForPreemption(pod *v1.Pod,
// NOTE: This function assumes that it is never called if "pod" cannot be scheduled // NOTE: This function assumes that it is never called if "pod" cannot be scheduled
// due to pod affinity, node affinity, or node anti-affinity reasons. None of // due to pod affinity, node affinity, or node anti-affinity reasons. None of
// these predicates can be satisfied by removing more pods from the node. // these predicates can be satisfied by removing more pods from the node.
func selectVictimsOnNode(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo, fitPredicates map[string]algorithm.FitPredicate) ([]*v1.Pod, bool) { func selectVictimsOnNode(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo, fitPredicates map[string]algorithm.FitPredicate) ([]*v1.Pod, bool) {
higherPriority := func(pod1, pod2 interface{}) bool { higherPriority := func(pod1, pod2 interface{}) bool {
return util.GetPodPriority(pod1.(*v1.Pod)) > util.GetPodPriority(pod2.(*v1.Pod)) return util.GetPodPriority(pod1.(*v1.Pod)) > util.GetPodPriority(pod2.(*v1.Pod))
} }
@ -567,7 +567,7 @@ func NewGenericScheduler(
cache schedulercache.Cache, cache schedulercache.Cache,
eCache *EquivalenceCache, eCache *EquivalenceCache,
predicates map[string]algorithm.FitPredicate, predicates map[string]algorithm.FitPredicate,
predicateMetaProducer algorithm.MetadataProducer, predicateMetaProducer algorithm.PredicateMetadataProducer,
prioritizers []algorithm.PriorityConfig, prioritizers []algorithm.PriorityConfig,
priorityMetaProducer algorithm.MetadataProducer, priorityMetaProducer algorithm.MetadataProducer,
extenders []algorithm.SchedulerExtender) algorithm.ScheduleAlgorithm { extenders []algorithm.SchedulerExtender) algorithm.ScheduleAlgorithm {

16
plugin/pkg/scheduler/core/generic_scheduler_test.go
View File

@ -41,15 +41,15 @@ import (
schedulertesting "k8s.io/kubernetes/plugin/pkg/scheduler/testing" schedulertesting "k8s.io/kubernetes/plugin/pkg/scheduler/testing"
) )
func falsePredicate(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func falsePredicate(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
return false, []algorithm.PredicateFailureReason{algorithmpredicates.ErrFakePredicate}, nil return false, []algorithm.PredicateFailureReason{algorithmpredicates.ErrFakePredicate}, nil
} }
func truePredicate(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func truePredicate(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
return true, nil, nil return true, nil, nil
} }
func matchesPredicate(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func matchesPredicate(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
node := nodeInfo.Node() node := nodeInfo.Node()
if node == nil { if node == nil {
return false, nil, fmt.Errorf("node not found") return false, nil, fmt.Errorf("node not found")
@ -60,7 +60,7 @@ func matchesPredicate(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.No
return false, []algorithm.PredicateFailureReason{algorithmpredicates.ErrFakePredicate}, nil return false, []algorithm.PredicateFailureReason{algorithmpredicates.ErrFakePredicate}, nil
} }
func hasNoPodsPredicate(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func hasNoPodsPredicate(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
if len(nodeInfo.Pods()) == 0 { if len(nodeInfo.Pods()) == 0 {
return true, nil, nil return true, nil, nil
} }
@ -307,7 +307,7 @@ func TestGenericScheduler(t *testing.T) {
} }
scheduler := NewGenericScheduler( scheduler := NewGenericScheduler(
cache, nil, test.predicates, algorithm.EmptyMetadataProducer, test.prioritizers, algorithm.EmptyMetadataProducer, cache, nil, test.predicates, algorithm.EmptyPredicateMetadataProducer, test.prioritizers, algorithm.EmptyMetadataProducer,
[]algorithm.SchedulerExtender{}) []algorithm.SchedulerExtender{})
machine, err := scheduler.Schedule(test.pod, schedulertesting.FakeNodeLister(makeNodeList(test.nodes))) machine, err := scheduler.Schedule(test.pod, schedulertesting.FakeNodeLister(makeNodeList(test.nodes)))
@ -328,7 +328,7 @@ func TestFindFitAllError(t *testing.T) {
"2": schedulercache.NewNodeInfo(), "2": schedulercache.NewNodeInfo(),
"1": schedulercache.NewNodeInfo(), "1": schedulercache.NewNodeInfo(),
} }
_, predicateMap, err := findNodesThatFit(&v1.Pod{}, nodeNameToInfo, makeNodeList(nodes), predicates, nil, algorithm.EmptyMetadataProducer, nil) _, predicateMap, err := findNodesThatFit(&v1.Pod{}, nodeNameToInfo, makeNodeList(nodes), predicates, nil, algorithm.EmptyPredicateMetadataProducer, nil)
if err != nil { if err != nil {
t.Errorf("unexpected error: %v", err) t.Errorf("unexpected error: %v", err)
@ -362,7 +362,7 @@ func TestFindFitSomeError(t *testing.T) {
nodeNameToInfo[name].SetNode(&v1.Node{ObjectMeta: metav1.ObjectMeta{Name: name}}) nodeNameToInfo[name].SetNode(&v1.Node{ObjectMeta: metav1.ObjectMeta{Name: name}})
} }
_, predicateMap, err := findNodesThatFit(pod, nodeNameToInfo, makeNodeList(nodes), predicates, nil, algorithm.EmptyMetadataProducer, nil) _, predicateMap, err := findNodesThatFit(pod, nodeNameToInfo, makeNodeList(nodes), predicates, nil, algorithm.EmptyPredicateMetadataProducer, nil)
if err != nil { if err != nil {
t.Errorf("unexpected error: %v", err) t.Errorf("unexpected error: %v", err)
} }
@ -583,7 +583,7 @@ func (n FakeNodeInfo) GetNodeInfo(nodeName string) (*v1.Node, error) {
return &node, nil return &node, nil
} }
func PredicateMetadata(p *v1.Pod, nodeInfo map[string]*schedulercache.NodeInfo) interface{} { func PredicateMetadata(p *v1.Pod, nodeInfo map[string]*schedulercache.NodeInfo) algorithm.PredicateMetadata {
return algorithmpredicates.NewPredicateMetadataFactory(schedulertesting.FakePodLister{p})(p, nodeInfo) return algorithmpredicates.NewPredicateMetadataFactory(schedulertesting.FakePodLister{p})(p, nodeInfo)
} }

2
plugin/pkg/scheduler/factory/factory.go
View File

@ -753,7 +753,7 @@ func (f *ConfigFactory) GetPriorityMetadataProducer() (algorithm.MetadataProduce
return getPriorityMetadataProducer(*pluginArgs) return getPriorityMetadataProducer(*pluginArgs)
} }
func (f *ConfigFactory) GetPredicateMetadataProducer() (algorithm.MetadataProducer, error) { func (f *ConfigFactory) GetPredicateMetadataProducer() (algorithm.PredicateMetadataProducer, error) {
pluginArgs, err := f.getPluginArgs() pluginArgs, err := f.getPluginArgs()
if err != nil { if err != nil {
return nil, err return nil, err

4
plugin/pkg/scheduler/factory/factory_test.go
View File

@ -226,11 +226,11 @@ func TestCreateFromEmptyConfig(t *testing.T) {
factory.CreateFromConfig(policy) factory.CreateFromConfig(policy)
} }
func PredicateOne(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func PredicateOne(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
return true, nil, nil return true, nil, nil
} }
func PredicateTwo(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func PredicateTwo(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
return true, nil, nil return true, nil, nil
} }

12
plugin/pkg/scheduler/factory/plugins.go
View File

@ -47,8 +47,12 @@ type PluginFactoryArgs struct {
} }
// MetadataProducerFactory produces MetadataProducer from the given args. // MetadataProducerFactory produces MetadataProducer from the given args.
// TODO: Rename this to PriorityMetadataProducerFactory.
type MetadataProducerFactory func(PluginFactoryArgs) algorithm.MetadataProducer type MetadataProducerFactory func(PluginFactoryArgs) algorithm.MetadataProducer
// PredicateMetadataProducerFactory produces PredicateMetadataProducer from the given args.
type PredicateMetadataProducerFactory func(PluginFactoryArgs) algorithm.PredicateMetadataProducer
// A FitPredicateFactory produces a FitPredicate from the given args. // A FitPredicateFactory produces a FitPredicate from the given args.
type FitPredicateFactory func(PluginFactoryArgs) algorithm.FitPredicate type FitPredicateFactory func(PluginFactoryArgs) algorithm.FitPredicate
@ -80,7 +84,7 @@ var (
// Registered metadata producers // Registered metadata producers
priorityMetadataProducer MetadataProducerFactory priorityMetadataProducer MetadataProducerFactory
predicateMetadataProducer MetadataProducerFactory predicateMetadataProducer PredicateMetadataProducerFactory
// get equivalence pod function // get equivalence pod function
getEquivalencePodFunc algorithm.GetEquivalencePodFunc getEquivalencePodFunc algorithm.GetEquivalencePodFunc
@ -181,7 +185,7 @@ func RegisterPriorityMetadataProducerFactory(factory MetadataProducerFactory) {
priorityMetadataProducer = factory priorityMetadataProducer = factory
} }
func RegisterPredicateMetadataProducerFactory(factory MetadataProducerFactory) { func RegisterPredicateMetadataProducerFactory(factory PredicateMetadataProducerFactory) {
schedulerFactoryMutex.Lock() schedulerFactoryMutex.Lock()
defer schedulerFactoryMutex.Unlock() defer schedulerFactoryMutex.Unlock()
predicateMetadataProducer = factory predicateMetadataProducer = factory
@ -343,12 +347,12 @@ func getPriorityMetadataProducer(args PluginFactoryArgs) (algorithm.MetadataProd
return priorityMetadataProducer(args), nil return priorityMetadataProducer(args), nil
} }
func getPredicateMetadataProducer(args PluginFactoryArgs) (algorithm.MetadataProducer, error) { func getPredicateMetadataProducer(args PluginFactoryArgs) (algorithm.PredicateMetadataProducer, error) {
schedulerFactoryMutex.Lock() schedulerFactoryMutex.Lock()
defer schedulerFactoryMutex.Unlock() defer schedulerFactoryMutex.Unlock()
if predicateMetadataProducer == nil { if predicateMetadataProducer == nil {
return algorithm.EmptyMetadataProducer, nil return algorithm.EmptyPredicateMetadataProducer, nil
} }
return predicateMetadataProducer(args), nil return predicateMetadataProducer(args), nil
} }

2
plugin/pkg/scheduler/scheduler.go
View File

@ -66,7 +66,7 @@ func (sched *Scheduler) StopEverything() {
type Configurator interface { type Configurator interface {
GetPriorityFunctionConfigs(priorityKeys sets.String) ([]algorithm.PriorityConfig, error) GetPriorityFunctionConfigs(priorityKeys sets.String) ([]algorithm.PriorityConfig, error)
GetPriorityMetadataProducer() (algorithm.MetadataProducer, error) GetPriorityMetadataProducer() (algorithm.MetadataProducer, error)
GetPredicateMetadataProducer() (algorithm.MetadataProducer, error) GetPredicateMetadataProducer() (algorithm.PredicateMetadataProducer, error)
GetPredicates(predicateKeys sets.String) (map[string]algorithm.FitPredicate, error) GetPredicates(predicateKeys sets.String) (map[string]algorithm.FitPredicate, error)
GetHardPodAffinitySymmetricWeight() int GetHardPodAffinitySymmetricWeight() int
GetSchedulerName() string GetSchedulerName() string

4
plugin/pkg/scheduler/scheduler_test.go
View File

@ -500,7 +500,7 @@ func setupTestScheduler(queuedPodStore *clientcache.FIFO, scache schedulercache.
scache, scache,
nil, nil,
predicateMap, predicateMap,
algorithm.EmptyMetadataProducer, algorithm.EmptyPredicateMetadataProducer,
[]algorithm.PriorityConfig{}, []algorithm.PriorityConfig{},
algorithm.EmptyMetadataProducer, algorithm.EmptyMetadataProducer,
[]algorithm.SchedulerExtender{}) []algorithm.SchedulerExtender{})
@ -536,7 +536,7 @@ func setupTestSchedulerLongBindingWithRetry(queuedPodStore *clientcache.FIFO, sc
scache, scache,
nil, nil,
predicateMap, predicateMap,
algorithm.EmptyMetadataProducer, algorithm.EmptyPredicateMetadataProducer,
[]algorithm.PriorityConfig{}, []algorithm.PriorityConfig{},
algorithm.EmptyMetadataProducer, algorithm.EmptyMetadataProducer,
[]algorithm.SchedulerExtender{}) []algorithm.SchedulerExtender{})

2
plugin/pkg/scheduler/testutil.go
View File

@ -45,7 +45,7 @@ func (fc *FakeConfigurator) GetPriorityMetadataProducer() (algorithm.MetadataPro
} }
// GetPredicateMetadataProducer is not implemented yet. // GetPredicateMetadataProducer is not implemented yet.
func (fc *FakeConfigurator) GetPredicateMetadataProducer() (algorithm.MetadataProducer, error) { func (fc *FakeConfigurator) GetPredicateMetadataProducer() (algorithm.PredicateMetadataProducer, error) {
return nil, fmt.Errorf("not implemented") return nil, fmt.Errorf("not implemented")
} }

4
test/integration/scheduler/scheduler_test.go
View File

@ -56,11 +56,11 @@ type nodeStateManager struct {
makeUnSchedulable nodeMutationFunc makeUnSchedulable nodeMutationFunc
} }
func PredicateOne(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func PredicateOne(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
return true, nil, nil return true, nil, nil
} }
func PredicateTwo(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) { func PredicateTwo(pod *v1.Pod, meta algorithm.PredicateMetadata, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
return true, nil, nil return true, nil, nil
} }