open-nomad/api/resources.go

101 lines
2.3 KiB
Go

package api
import "github.com/hashicorp/nomad/helper"
// Resources encapsulates the required resources of
// a given task or task group.
type Resources struct {
CPU *int
MemoryMB *int `mapstructure:"memory"`
DiskMB *int `mapstructure:"disk"`
IOPS *int
Networks []*NetworkResource
}
// Canonicalize will supply missing values in the cases
// where they are not provided.
func (r *Resources) Canonicalize() {
defaultResources := DefaultResources()
if r.CPU == nil {
r.CPU = defaultResources.CPU
}
if r.MemoryMB == nil {
r.MemoryMB = defaultResources.MemoryMB
}
if r.IOPS == nil {
r.IOPS = defaultResources.IOPS
}
for _, n := range r.Networks {
n.Canonicalize()
}
}
// DefaultResources is a small resources object that contains the
// default resources requests that we will provide to an object.
// --- THIS FUNCTION IS REPLICATED IN nomad/structs/structs.go
// and should be kept in sync.
func DefaultResources() *Resources {
return &Resources{
CPU: helper.IntToPtr(100),
MemoryMB: helper.IntToPtr(300),
IOPS: helper.IntToPtr(0),
}
}
// MinResources is a small resources object that contains the
// absolute minimum resources that we will provide to an object.
// This should not be confused with the defaults which are
// provided in DefaultResources() --- THIS LOGIC IS REPLICATED
// IN nomad/structs/structs.go and should be kept in sync.
func MinResources() *Resources {
return &Resources{
CPU: helper.IntToPtr(100),
MemoryMB: helper.IntToPtr(10),
IOPS: helper.IntToPtr(0),
}
}
// Merge merges this resource with another resource.
func (r *Resources) Merge(other *Resources) {
if other == nil {
return
}
if other.CPU != nil {
r.CPU = other.CPU
}
if other.MemoryMB != nil {
r.MemoryMB = other.MemoryMB
}
if other.DiskMB != nil {
r.DiskMB = other.DiskMB
}
if other.IOPS != nil {
r.IOPS = other.IOPS
}
if len(other.Networks) != 0 {
r.Networks = other.Networks
}
}
type Port struct {
Label string
Value int `mapstructure:"static"`
}
// NetworkResource is used to describe required network
// resources of a given task.
type NetworkResource struct {
Device string
CIDR string
IP string
MBits *int
ReservedPorts []Port
DynamicPorts []Port
}
func (n *NetworkResource) Canonicalize() {
if n.MBits == nil {
n.MBits = helper.IntToPtr(10)
}
}