/
universal_resource.go
82 lines (73 loc) · 1.99 KB
/
universal_resource.go
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package main
import (
"errors"
"fmt"
"k8s.io/apimachinery/pkg/api/resource"
"strconv"
"strings"
)
const (
ResourceInfinity int64 = -1
)
// UniversalResource 资源配额,Request 不允许 0 值,Limit 允许 0 值代表无限制,针对 CPU 单位为 m,针对内存单位为 Mi
type UniversalResource struct {
Request int64
Limit int64
}
func (l *UniversalResource) UnmarshalYAML(unmarshal func(interface{}) error) (err error) {
var s string
if err = unmarshal(&s); err != nil {
return
}
if err = l.Set(s); err != nil {
return
}
return
}
func (l UniversalResource) IsZero() bool {
return l.Request == 0 && l.Limit == 0
}
func (l UniversalResource) String() string {
if l.Limit == ResourceInfinity {
return fmt.Sprintf("%d:-", l.Request)
}
return fmt.Sprintf("%d:%d", l.Request, l.Limit)
}
func (l *UniversalResource) Set(s string) (err error) {
splits := strings.Split(s, ":")
if len(splits) != 2 {
err = errors.New("资源配额格式不正确")
return
}
if l.Request, err = strconv.ParseInt(splits[0], 10, 64); err != nil {
return
}
if splits[1] == "-" {
l.Limit = ResourceInfinity
} else {
if l.Limit, err = strconv.ParseInt(splits[1], 10, 64); err != nil {
return
}
}
if l.Request <= 0 || (l.Limit != ResourceInfinity && l.Limit < l.Request) {
err = errors.New("资源配额格式不正确")
return
}
return
}
func (l UniversalResource) AsCPU() (resource.Quantity, resource.Quantity) {
if l.Limit == ResourceInfinity {
return resource.MustParse(fmt.Sprintf("%dm", l.Request)),
resource.MustParse(fmt.Sprintf("999"))
}
return resource.MustParse(fmt.Sprintf("%dm", l.Request)),
resource.MustParse(fmt.Sprintf("%dm", l.Limit))
}
func (l UniversalResource) AsMEM() (resource.Quantity, resource.Quantity) {
if l.Limit == ResourceInfinity {
return resource.MustParse(fmt.Sprintf("%dMi", l.Request)),
resource.MustParse(fmt.Sprintf("999Gi"))
}
return resource.MustParse(fmt.Sprintf("%dMi", l.Request)),
resource.MustParse(fmt.Sprintf("%dMi", l.Limit))
}