kubernetes checkpoint 源码

2022-09-18
浏览 (233)

kubernetes checkpoint 代码

文件路径：/pkg/kubelet/cm/memorymanager/state/checkpoint.go

/*
Copyright 2020 The Kubernetes Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package state

import (
	"encoding/json"

	"k8s.io/kubernetes/pkg/kubelet/checkpointmanager"
	"k8s.io/kubernetes/pkg/kubelet/checkpointmanager/checksum"
)

var _ checkpointmanager.Checkpoint = &MemoryManagerCheckpoint{}

// MemoryManagerCheckpoint struct is used to store memory/pod assignments in a checkpoint
type MemoryManagerCheckpoint struct {
	PolicyName   string                     `json:"policyName"`
	MachineState NUMANodeMap                `json:"machineState"`
	Entries      ContainerMemoryAssignments `json:"entries,omitempty"`
	Checksum     checksum.Checksum          `json:"checksum"`
}

// NewMemoryManagerCheckpoint returns an instance of Checkpoint
func NewMemoryManagerCheckpoint() *MemoryManagerCheckpoint {
	//nolint:staticcheck // unexported-type-in-api user-facing error message
	return &MemoryManagerCheckpoint{
		Entries:      ContainerMemoryAssignments{},
		MachineState: NUMANodeMap{},
	}
}

// MarshalCheckpoint returns marshalled checkpoint
func (mp *MemoryManagerCheckpoint) MarshalCheckpoint() ([]byte, error) {
	// make sure checksum wasn't set before so it doesn't affect output checksum
	mp.Checksum = 0
	mp.Checksum = checksum.New(mp)
	return json.Marshal(*mp)
}

// UnmarshalCheckpoint tries to unmarshal passed bytes to checkpoint
func (mp *MemoryManagerCheckpoint) UnmarshalCheckpoint(blob []byte) error {
	return json.Unmarshal(blob, mp)
}

// VerifyChecksum verifies that current checksum of checkpoint is valid
func (mp *MemoryManagerCheckpoint) VerifyChecksum() error {
	ck := mp.Checksum
	mp.Checksum = 0
	err := ck.Verify(mp)
	mp.Checksum = ck
	return err
}

相关信息

kubernetes 源码目录

相关文章

kubernetes state 源码

kubernetes state_checkpoint 源码

kubernetes state_checkpoint_test 源码

kubernetes state_mem 源码

0 赞

所属分类： 后端技术
本文标签： golang docker
版权声明： 原创文章如转载，请注明本文链接: https://m.seaxiang.com/blog/0e80014bc7354558a7cec2449dc93fca

热门推荐

1、直接访问google.com
2、 - 优质文章
3、 gate.io
4、 harmony 鸿蒙hdc使用指导
5、 harmony 鸿蒙初识ArkTS语言
6、 harmony 鸿蒙ArkUI组件（ArkTS）开发常见问题
7、 flink kafka connector scan.startup.mode 的几个选项
8、 golang
9、 openharmony
10、 Vue中input框自动聚焦

Loading...