dispatchcloud

Documentation

Index

• Variables
• func ChooseInstanceType(cc *arvados.Cluster, ctr *arvados.Container) ([]arvados.InstanceType, error)
• func EstimateScratchSpace(ctr *arvados.Container) (needScratch int64)
• type ConstraintsNotSatisfiableError

Variables

var Command cmd.Handler = service.Command(arvados.ServiceNameDispatchCloud, newHandler)

var Drivers = map[string]cloud.Driver{
	"azure":    azure.Driver,
	"ec2":      ec2.Driver,
	"loopback": loopback.Driver,
}

Drivers is a map of available cloud drivers. Clusters.*.Containers.CloudVMs.Driver configuration values correspond to keys in this map.

var ErrInstanceTypesNotConfigured = errors.New("site configuration does not list any instance types")

Functions

func ChooseInstanceType

func ChooseInstanceType(cc *arvados.Cluster, ctr *arvados.Container) ([]arvados.InstanceType, error)

ChooseInstanceType returns the arvados.InstanceTypes eligible to run ctr, i.e., those that have enough RAM, VCPUs, etc., and are not too expensive according to cluster configuration.

The returned types are sorted with lower prices first.

The error is non-nil if and only if the returned slice is empty.

func EstimateScratchSpace

func EstimateScratchSpace(ctr *arvados.Container) (needScratch int64)

EstimateScratchSpace estimates how much available disk space (in bytes) is needed to run the container by summing the capacity requested by 'tmp' mounts plus disk space required to load the Docker image plus arv-mount block cache.

Types

type ConstraintsNotSatisfiableError

type ConstraintsNotSatisfiableError struct {
	AvailableTypes []arvados.InstanceType
	// contains filtered or unexported fields
}

ConstraintsNotSatisfiableError includes a list of available instance types to be reported back to the user.