pool

Documentation

Index

• Constants
• Variables
• type CoolDownResource
• type IntrospectResponse
• type Pool
  • func NewResourcePool(log logr.Logger, poolConfig *config.WarmPoolConfig, ...) Pool
• type Resource

Constants

const (
	NumIPv4AddrPerPrefix = 16
)

Variables

var (
	ErrPoolAtMaxCapacity          = fmt.Errorf("cannot assign any more resource from warm pool")
	ErrResourceAreBeingCooledDown = fmt.Errorf("cannot assign resource now, resources are being cooled down")
	ErrResourcesAreBeingCreated   = fmt.Errorf("cannot assign resource now, resources are being created")
	ErrWarmPoolEmpty              = fmt.Errorf("warm pool is empty")
	ErrInsufficientCidrBlocks     = fmt.Errorf("InsufficientCidrBlocks: The specified subnet does not have enough free cidr blocks to satisfy the request")
	ErrResourceAlreadyAssigned    = fmt.Errorf("resource is already assigned to the requestor")
	ErrResourceDoesntExist        = fmt.Errorf("requested resource doesn't exist in used pool")
	ErrIncorrectResourceOwner     = fmt.Errorf("resource doesn't belong to the requestor")
)

Types

type CoolDownResource

type CoolDownResource struct {
	// ResourceID is the unique ID of the resource
	Resource Resource
	// DeletionTimestamp is the time when the owner of the resource was deleted
	DeletionTimestamp time.Time
}

type IntrospectResponse

type IntrospectResponse struct {
	UsedResources    map[string]Resource
	WarmResources    map[string][]Resource
	CoolingResources []CoolDownResource
}

IntrospectResponse is the pool state returned to the introspect API

type Pool

type Pool interface {
	AssignResource(requesterID string) (resourceID string, shouldReconcile bool, err error)
	FreeResource(requesterID string, resourceID string) (shouldReconcile bool, err error)
	GetAssignedResource(requesterID string) (resourceID string, ownsResource bool)
	UpdatePool(job *worker.WarmPoolJob, didSucceed bool, prefixAvailable bool) (shouldReconcile bool)
	ReSync(resources []string)
	ReconcilePool() *worker.WarmPoolJob
	ProcessCoolDownQueue() bool
	SetToDraining() *worker.WarmPoolJob
	SetToActive(warmPoolConfig *config.WarmPoolConfig) *worker.WarmPoolJob
	Introspect() IntrospectResponse
}

func NewResourcePool

func NewResourcePool(log logr.Logger, poolConfig *config.WarmPoolConfig, usedResources map[string]Resource,
	warmResources map[string][]Resource, nodeName string, capacity int, isPDPool bool) Pool

type Resource

type Resource struct {
	// could be IPv4 address or IPv4 prefix
	GroupID string
	// IPv4 address
	ResourceID string
}

Resource represents a secondary IPv4 address or a prefix-deconstructed IPv4 address, uniquely identified by GroupID and ResourceID