scheduling

package
v0.35.8 Latest Latest
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 Go to latest Published: Sep 5, 2024 License: Apache-2.0 Imports: 26 Imported by: 20

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Index

Constants

View Source 
const IsDefaultStorageClassAnnotation = "storageclass.kubernetes.io/is-default-class"

Variables

View Source 
var AllowUndefinedWellKnownLabels = func(options CompatibilityOptions) CompatibilityOptions {
	options.AllowUndefined = v1beta1.WellKnownLabels
	return options
}
View Source 
var KnownEphemeralTaints = []v1.Taint{
	{Key: v1.TaintNodeNotReady, Effect: v1.TaintEffectNoSchedule},
	{Key: v1.TaintNodeUnreachable, Effect: v1.TaintEffectNoSchedule},
	{Key: cloudproviderapi.TaintExternalCloudProvider, Effect: v1.TaintEffectNoSchedule, Value: "true"},
}

KnownEphemeralTaints are taints that are expected to be added to a node while it's initializing If the node is a Karpenter-managed node, we don't consider these taints while the node is uninitialized since we expect these taints to eventually be removed

Functions

func DiscoverDefaultStorageClassName 

func DiscoverDefaultStorageClassName(ctx context.Context, kubeClient client.Client) (string, error)

func HasPreferredNodeAffinity 

func HasPreferredNodeAffinity(p *v1.Pod) bool

HasPreferredNodeAffinity returns true if the pod has a preferred node affinity term

func ResetDefaultStorageClass 

func ResetDefaultStorageClass()

ResetDefaultStorageClass is intended to be called from unit tests to reset the default storage class

Types

type CompatibilityOptions added in v0.34.0 

type CompatibilityOptions struct {
	AllowUndefined sets.Set[string]
}

type HostPort 

type HostPort struct {
	IP       net.IP
	Port     int32
	Protocol v1.Protocol
}

+k8s:deepcopy-gen=true

func GetHostPorts 

func GetHostPorts(pod *v1.Pod) []HostPort

func (*HostPort) DeepCopy 

func (in *HostPort) DeepCopy() *HostPort

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new HostPort.

func (*HostPort) DeepCopyInto 

func (in *HostPort) DeepCopyInto(out *HostPort)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

func (HostPort) Matches 

func (p HostPort) Matches(rhs HostPort) bool

func (HostPort) String 

func (p HostPort) String() string

type HostPortUsage 

type HostPortUsage struct {
	// contains filtered or unexported fields
}

HostPortUsage tracks HostPort usage within a node. On a node, each <hostIP, hostPort, protocol> used by pods bound to the node must be unique. We need to track this to keep an accurate concept of what pods can potentially schedule together. +k8s:deepcopy-gen=true

func NewHostPortUsage 

func NewHostPortUsage() *HostPortUsage

func (*HostPortUsage) Add 

func (u *HostPortUsage) Add(usedBy *v1.Pod, ports []HostPort)

Add adds a port to the HostPortUsage

func (*HostPortUsage) Conflicts 

func (u *HostPortUsage) Conflicts(usedBy *v1.Pod, ports []HostPort) error

func (*HostPortUsage) DeepCopy 

func (in *HostPortUsage) DeepCopy() *HostPortUsage

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new HostPortUsage.

func (*HostPortUsage) DeepCopyInto 

func (in *HostPortUsage) DeepCopyInto(out *HostPortUsage)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

func (*HostPortUsage) DeletePod 

func (u *HostPortUsage) DeletePod(key types.NamespacedName)

DeletePod deletes all host port usage from the HostPortUsage that were created by the pod with the given name.

type Requirement 

type Requirement struct {
	Key string

	MinValues *int
	// contains filtered or unexported fields
}

Requirement is an efficient represenatation of v1.NodeSelectorRequirement

func NewRequirement 

func NewRequirement(key string, operator v1.NodeSelectorOperator, values ...string) *Requirement

func NewRequirementWithFlexibility added in v0.35.0 

func NewRequirementWithFlexibility(key string, operator v1.NodeSelectorOperator, minValues *int, values ...string) *Requirement

NewRequirementWithFlexibility constructs new requirement from the combination of key, values, minValues and the operator that connects the keys and values.

func (*Requirement) Any 

func (r *Requirement) Any() string

func (*Requirement) Has 

func (r *Requirement) Has(value string) bool

Has returns true if the requirement allows the value

func (*Requirement) Insert 

func (r *Requirement) Insert(items ...string)

func (*Requirement) Intersection 

func (r *Requirement) Intersection(requirement *Requirement) *Requirement

Intersection constraints the Requirement from the incoming requirements nolint:gocyclo

func (*Requirement) Len 

func (r *Requirement) Len() int

func (*Requirement) NodeSelectorRequirement 

func (r *Requirement) NodeSelectorRequirement() v1beta1.NodeSelectorRequirementWithMinValues

func (*Requirement) Operator 

func (r *Requirement) Operator() v1.NodeSelectorOperator

func (*Requirement) String 

func (r *Requirement) String() string

func (*Requirement) Values 

func (r *Requirement) Values() []string

type Requirements 

type Requirements map[string]*Requirement

Requirements are an efficient set representation under the hood. Since its underlying types are slices and maps, this type should not be used as a pointer.

func NewLabelRequirements 

func NewLabelRequirements(labels map[string]string) Requirements

NewLabelRequirements constructs requirements from labels

func NewNodeSelectorRequirements 

func NewNodeSelectorRequirements(requirements ...v1.NodeSelectorRequirement) Requirements

NewRequirements constructs requirements from NodeSelectorRequirements

func NewNodeSelectorRequirementsWithMinValues added in v0.35.0 

func NewNodeSelectorRequirementsWithMinValues(requirements ...v1beta1.NodeSelectorRequirementWithMinValues) Requirements

NewRequirements constructs requirements from NodeSelectorRequirementWithMinValues

func NewPodRequirements 

func NewPodRequirements(pod *v1.Pod) Requirements

NewPodRequirements constructs requirements from a pod and treats any preferred requirements as required.

func NewRequirements 

func NewRequirements(requirements ...*Requirement) Requirements

func NewStrictPodRequirements 

func NewStrictPodRequirements(pod *v1.Pod) Requirements

NewStrictPodRequirements constructs requirements from a pod and only includes true requirements (not preferences).

func (Requirements) Add 

func (r Requirements) Add(requirements ...*Requirement)

Add requirements to provided requirements. Mutates existing requirements

func (Requirements) Compatible 

func (r Requirements) Compatible(requirements Requirements, options ...functional.Option[CompatibilityOptions]) (errs error)

Compatible ensures the provided requirements can loosely be met.

func (Requirements) Get 

func (r Requirements) Get(key string) *Requirement

func (Requirements) Has 

func (r Requirements) Has(key string) bool

func (Requirements) HasMinValues added in v0.35.0 

func (r Requirements) HasMinValues() bool

func (Requirements) Intersects 

func (r Requirements) Intersects(requirements Requirements) (errs error)

Intersects returns errors if the requirements don't have overlapping values, undefined keys are allowed

func (Requirements) Keys 

func (r Requirements) Keys() sets.Set[string]

Keys returns unique set of the label keys from the requirements

func (Requirements) Labels 

func (r Requirements) Labels() map[string]string

func (Requirements) NodeSelectorRequirements 

func (r Requirements) NodeSelectorRequirements() []v1beta1.NodeSelectorRequirementWithMinValues

func (Requirements) String 

func (r Requirements) String() string

func (Requirements) Values 

func (r Requirements) Values() []*Requirement

type Taints 

type Taints []v1.Taint

Taints is a decorated alias type for []v1.Taint

func (Taints) Merge 

func (ts Taints) Merge(with Taints) Taints

Merge merges in taints with the passed in taints.

func (Taints) Tolerates 

func (ts Taints) Tolerates(pod *v1.Pod) (errs error)

Tolerates returns true if the pod tolerates all taints.

type VolumeUsage 

type VolumeUsage struct {
	// contains filtered or unexported fields
}

VolumeUsage tracks volume limits on a per node basis. The number of volumes that can be mounted varies by instance type. We need to be aware and track the mounted volume usage to inform our awareness of which pods can schedule to which nodes. +k8s:deepcopy-gen=true

func NewVolumeUsage 

func NewVolumeUsage() *VolumeUsage

func (*VolumeUsage) Add 

func (v *VolumeUsage) Add(pod *v1.Pod, volumes Volumes)

func (*VolumeUsage) AddLimit 

func (v *VolumeUsage) AddLimit(storageDriver string, value int)

func (*VolumeUsage) DeepCopy 

func (in *VolumeUsage) DeepCopy() *VolumeUsage

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new VolumeUsage.

func (*VolumeUsage) DeepCopyInto 

func (in *VolumeUsage) DeepCopyInto(out *VolumeUsage)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

func (*VolumeUsage) DeletePod 

func (v *VolumeUsage) DeletePod(key types.NamespacedName)

func (*VolumeUsage) ExceedsLimits 

func (v *VolumeUsage) ExceedsLimits(vols Volumes) error

type Volumes 

type Volumes map[string]sets.Set[string]

+k8s:deepcopy-gen=true

func GetVolumes 

func GetVolumes(ctx context.Context, kubeClient client.Client, pod *v1.Pod) (Volumes, error)

func (Volumes) Add 

func (u Volumes) Add(provisioner string, pvcID string)

func (Volumes) DeepCopy 

func (in Volumes) DeepCopy() Volumes

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new Volumes.

func (Volumes) DeepCopyInto 

func (in Volumes) DeepCopyInto(out *Volumes)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

func (Volumes) Insert 

func (u Volumes) Insert(volumes Volumes)

func (Volumes) Union 

func (u Volumes) Union(vol Volumes) Volumes

Source Files

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