defaultpodtopologyspread

Documentation

Index

• Constants
• func New(_ *runtime.Unknown, handle framework.FrameworkHandle) (framework.Plugin, error)
• type DefaultPodTopologySpread
  • func (pl *DefaultPodTopologySpread) Name() string
  • func (pl *DefaultPodTopologySpread) NormalizeScore(ctx context.Context, state *framework.CycleState, pod *v1.Pod, ...) *framework.Status
  • func (pl *DefaultPodTopologySpread) PostFilter(ctx context.Context, cycleState *framework.CycleState, pod *v1.Pod, ...) *framework.Status
  • func (pl *DefaultPodTopologySpread) Score(ctx context.Context, state *framework.CycleState, pod *v1.Pod, nodeName string) (int64, *framework.Status)
  • func (pl *DefaultPodTopologySpread) ScoreExtensions() framework.ScoreExtensions

Constants

const (
	// Name is the name of the plugin used in the plugin registry and configurations.
	Name = "DefaultPodTopologySpread"
)

Functions

func New

func New(_ *runtime.Unknown, handle framework.FrameworkHandle) (framework.Plugin, error)

New initializes a new plugin and returns it.

Types

type DefaultPodTopologySpread

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

DefaultPodTopologySpread is a plugin that calculates selector spread priority.

func (*DefaultPodTopologySpread) Name

func (pl *DefaultPodTopologySpread) Name() string

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

func (*DefaultPodTopologySpread) NormalizeScore

func (pl *DefaultPodTopologySpread) NormalizeScore(ctx context.Context, state *framework.CycleState, pod *v1.Pod, scores framework.NodeScoreList) *framework.Status

NormalizeScore invoked after scoring all nodes. For this plugin, it calculates the source of each node based on the number of existing matching pods on the node where zone information is included on the nodes, it favors nodes in zones with fewer existing matching pods.

func (*DefaultPodTopologySpread) PostFilter

func (pl *DefaultPodTopologySpread) PostFilter(ctx context.Context, cycleState *framework.CycleState, pod *v1.Pod, nodes []*v1.Node, _ framework.NodeToStatusMap) *framework.Status

PostFilter builds and writes cycle state used by Score and NormalizeScore.

func (*DefaultPodTopologySpread) Score

func (pl *DefaultPodTopologySpread) Score(ctx context.Context, state *framework.CycleState, pod *v1.Pod, nodeName string) (int64, *framework.Status)

Score invoked at the Score extension point. The "score" returned in this function is the matching number of pods on the `nodeName`, it is normalized later.

func (*DefaultPodTopologySpread) ScoreExtensions

func (pl *DefaultPodTopologySpread) ScoreExtensions() framework.ScoreExtensions

ScoreExtensions of the Score plugin.