scheduling

Documentation

Index

• func Calculate(req router.Request, resp router.Response) error
• func Nodes(req router.Request, computeClass *adminv1.ProjectComputeClassInstance) (*corev1.Affinity, []corev1.Toleration)
• func PriorityClassName(req router.Request, computeClass *adminv1.ProjectComputeClassInstance) (string, error)
• func ResourceRequirements(req router.Request, app *v1.AppInstance, containerName string, ...) (*corev1.ResourceRequirements, error)

Functions

func Calculate

func Calculate(req router.Request, resp router.Response) error

Calculate is a handler that sets the scheduling rules for an AppInstance to its status if and only if its generation is different from its observedGeneration.

This is necessary because querying for scheduling rules will result in all running AppInstances using the backing resources (the Acorn Config or a ComputeClass, for example) to be redeployed when the resources change. By calculating scheduling rules only when the generation changes, we can ensure that updated backing resources are only applied when an AppInstance is updated directly.

func Nodes

func Nodes(req router.Request, computeClass *adminv1.ProjectComputeClassInstance) (*corev1.Affinity, []corev1.Toleration)

Nodes returns the Affinity and Tolerations from a ComputeClass if they exist

func PriorityClassName

func PriorityClassName(req router.Request, computeClass *adminv1.ProjectComputeClassInstance) (string, error)

PriorityClass checks that a defined PriorityClass exists and returns the name of it

func ResourceRequirements

func ResourceRequirements(req router.Request, app *v1.AppInstance, containerName string, container v1.Container, computeClass *adminv1.ProjectComputeClassInstance) (*corev1.ResourceRequirements, error)

ResourceRequirements determines the cpu and memory amount to be set for the limits/requests of the Pod