pool

Documentation

Index

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

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")
	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
	ResourceID string
	// DeletionTimestamp is the time when the owner of the resource was deleted
	DeletionTimestamp time.Time
}

type IntrospectResponse

type IntrospectResponse struct {
	UsedResources    map[string]string
	WarmResources    []string
	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) (shouldReconcile bool)
	ReSync(resources []string)
	ReconcilePool() *worker.WarmPoolJob
	ProcessCoolDownQueue() bool
	Introspect() IntrospectResponse
}

func NewResourcePool

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