119 lines
2.8 KiB
Go
119 lines
2.8 KiB
Go
/*
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Copyright 2021 Alibaba Group Holding Limited.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package common
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import (
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"bytes"
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corev1 "k8s.io/api/core/v1"
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)
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const (
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ResourceIOPS corev1.ResourceName = "iops"
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ResourceBPS corev1.ResourceName = "bps"
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ResourceReadIOPS corev1.ResourceName = "iops.read"
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ResourceWriteIOPS corev1.ResourceName = "iops.write"
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ResourceReadBPS corev1.ResourceName = "bps.read"
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ResourceWriteBPS corev1.ResourceName = "bps.write"
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)
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const Unlimited int64 = -1
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var ExtendedResource = []corev1.ResourceName{
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ResourceIOPS,
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ResourceBPS,
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ResourceReadIOPS,
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ResourceWriteIOPS,
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ResourceReadBPS,
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ResourceWriteBPS,
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}
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func ResourceBlkioValueStr(limit corev1.ResourceList) (string, bool) {
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buf := bytes.Buffer{}
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for _, r := range ExtendedResource {
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v, ok := limit[r]
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if ok {
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buf.WriteString(string(r))
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buf.WriteRune('=')
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buf.WriteString(v.String())
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buf.WriteRune(',')
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}
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}
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if buf.Len() > 0 {
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s := buf.String()
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return s[:len(s)-1], true
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}
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return "", false
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}
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func getResourceBlkioValue(limit corev1.ResourceList, key corev1.ResourceName) int64 {
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if limit == nil {
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return Unlimited
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}
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v, ok := limit[key]
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if !ok {
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return Unlimited
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}
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return v.Value()
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}
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func blkioValueOverwrite(total, sub int64) int64 {
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if total == Unlimited {
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return sub
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}
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if sub == Unlimited {
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return total
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}
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if sub < total {
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return sub
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}
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return total
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}
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func GetResourceReadIOPSValue(limit corev1.ResourceList) int64 {
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return blkioValueOverwrite(
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getResourceBlkioValue(limit, ResourceIOPS),
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getResourceBlkioValue(limit, ResourceReadIOPS),
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)
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}
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func GetResourceWriteIOPSValue(limit corev1.ResourceList) int64 {
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return blkioValueOverwrite(
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getResourceBlkioValue(limit, ResourceIOPS),
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getResourceBlkioValue(limit, ResourceWriteIOPS),
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)
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}
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func GetResourceReadBPSValue(limit corev1.ResourceList) int64 {
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return blkioValueOverwrite(
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getResourceBlkioValue(limit, ResourceBPS),
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getResourceBlkioValue(limit, ResourceReadBPS),
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)
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}
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func GetResourceWriteBPSValue(limit corev1.ResourceList) int64 {
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return blkioValueOverwrite(
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getResourceBlkioValue(limit, ResourceBPS),
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getResourceBlkioValue(limit, ResourceWriteBPS),
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)
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}
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type ExtendedResourceRequirements struct {
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corev1.ResourceRequirements `json:",inline"`
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LimitsIO corev1.ResourceList `json:"limits.io,omitempty"`
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}
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