podspread

package

v1.28.0 Latest Latest Go to latest Published: Apr 3, 2024 License: Apache-2.0 Imports: 14 Imported by: 0

Details

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Repository

github.com/waok8s/wao-scheduler

Links

Open Source Insights

Documentation ¶

Index ¶

Constants
Variables
func New(_ runtime.Object, fh framework.Handle) (framework.Plugin, error)
type PodSpread
type SchedulingSession
type SpreadInfo
- func (s SpreadInfo) GetAreasOnlyControlPlane() []string
- func (s SpreadInfo) GetNodeArea(node string) (area string, isControlPlane bool)
type SpreadMode

Constants ¶

View Source

const (
	AnnotationPodSpreadRate = "wao.bitmedia.co.jp/podspread-rate"
)

Variables ¶

View Source

var (
	Name = "PodSpread"

	ReasonInvalidAnnotation         = "invalid annotation"
	ReasonEmptyNodeName             = "node not found"
	ReasonNotControlledByReplicaSet = "the pod is not controlled by any ReplicaSet"
	ReasonK8sClient                 = "skip this plugin as k8s client got error"
	ReasonSchedulingSession         = "skip this plugin as SchedulingSession update failed"
)

Functions ¶

func New ¶

func New(_ runtime.Object, fh framework.Handle) (framework.Plugin, error)

New initializes a new plugin and returns it.

Types ¶

type PodSpread ¶

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

func (*PodSpread) Name ¶

func (*PodSpread) Name() string

Name returns name of the plugin. It is used in logs, etc.

func (*PodSpread) PreFilter ¶

func (pl *PodSpread) PreFilter(ctx context.Context, cycleState *framework.CycleState, pod *corev1.Pod) (*framework.PreFilterResult, *framework.Status)

PreFilter invoked at the prefilter extension point.

func (*PodSpread) PreFilterExtensions ¶

func (pl *PodSpread) PreFilterExtensions() framework.PreFilterExtensions

PreFilterExtensions do not exist for this plugin.

type SchedulingSession ¶

type SchedulingSession struct {
	TotalReplicas int
	Redunduncy    int
	DeployedNodes map[string]int
	TotalDeployed int
	SpreadMode    SpreadMode
	SpreadInfo    SpreadInfo
}

type SpreadInfo ¶

type SpreadInfo map[string]map[string]bool

SpreadInfo holds area info.

area1:           # nodes has "area1" label (zone or region)
  node11: true   # node11 is a control plane node
  node12: false  # node12 is a worker node
area2:
  node21: false

func (SpreadInfo) GetAreasOnlyControlPlane ¶

func (s SpreadInfo) GetAreasOnlyControlPlane() []string

GetAreasOnlyControlPlane returns areas no worker nodes. These areas should be excluded from scheduling.

func (SpreadInfo) GetNodeArea ¶

func (s SpreadInfo) GetNodeArea(node string) (area string, isControlPlane bool)

type SpreadMode ¶

type SpreadMode string

const (
	SpreadModeRegion SpreadMode = "SpreadModeRegion"
	SpreadModeZone   SpreadMode = "SpreadModeZone"
	SpreadModeNode   SpreadMode = "SpreadModeNode"
)

Source Files ¶

View all Source files

podspread.go

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