expander

Documentation

Index

• Variables
• type Option
• type Strategy

Variables

var (
	// AvailableExpanders is a list of available expander options
	AvailableExpanders = []string{RandomExpanderName, MostPodsExpanderName, LeastWasteExpanderName, PriceBasedExpanderName, PriorityBasedExpanderName}
	// RandomExpanderName selects a node group at random
	RandomExpanderName = "random"
	// MostPodsExpanderName selects a node group that fits the most pods
	MostPodsExpanderName = "most-pods"
	// LeastWasteExpanderName selects a node group that leaves the least fraction of CPU and Memory
	LeastWasteExpanderName = "least-waste"
	// PriceBasedExpanderName selects a node group that is the most cost-effective and consistent with
	// the preferred node size for the cluster
	PriceBasedExpanderName = "price"
	// PriorityBasedExpanderName selects a node group based on a user-configured priorities assigned to group names
	PriorityBasedExpanderName = "priority"
)

Types

type Option

type Option struct {
	NodeGroup cloudprovider.NodeGroup
	NodeCount int
	Debug     string
	Pods      []*apiv1.Pod
}

Option describes an option to expand the cluster.

type Strategy

type Strategy interface {
	BestOption(options []Option, nodeInfo map[string]*schedulernodeinfo.NodeInfo) *Option
}

Strategy describes an interface for selecting the best option when scaling up