2020-06-19 14:52:56 +08:00
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< title > 管理容器的计算资源 · Kubernetes Handbook - Kubernetes中文指南/云原生应用架构实践手册 by Jimmy Song(宋净超)< / title >
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< a href = "https://jimmysong.io" target = "_blank" class = "custom-link" > 回到主页< / a >
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< a href = "https://jimmysong.io/awesome-cloud-native" target = "_blank" class = "custom-link" > Awesome Cloud Native< / a >
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< a href = "https://cloudnative.to" target = "_blank" class = "custom-link" > 云原生社区< / a >
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< a href = "https://cloudnativeindustryalliance.github.io/whitepaper2020/" target = "_blank" class = "custom-link" > 中国云原生发展白皮书2020< / a >
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< a href = "https://jimmysong.io/guide-to-cloud-native-app/" target = "_blank" class = "custom-link" > 云原生应用白皮书< / a >
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< li class = "header" > 前言< / li >
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< a href = "../" >
< b > 1.1.< / b >
序言
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< li class = "header" > 云原生< / li >
< li class = "chapter " data-level = "2.1" data-path = "../cloud-native/cloud-native-definition.html" >
< a href = "../cloud-native/cloud-native-definition.html" >
< b > 2.1.< / b >
云原生（ ）
< / a >
< / li >
< li class = "chapter " data-level = "2.2" data-path = "../cloud-native/cloud-native-philosophy.html" >
< a href = "../cloud-native/cloud-native-philosophy.html" >
< b > 2.2.< / b >
云原生的设计哲学
< / a >
< / li >
< li class = "chapter " data-level = "2.3" data-path = "../cloud-native/play-with-kubernetes.html" >
< a href = "../cloud-native/play-with-kubernetes.html" >
< b > 2.3.< / b >
Play with Kubernetes
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< li class = "chapter " data-level = "2.4" data-path = "../cloud-native/cloud-native-local-quick-start.html" >
< a href = "../cloud-native/cloud-native-local-quick-start.html" >
< b > 2.4.< / b >
快速部署一个云原生本地实验环境
< / a >
< / li >
< li class = "chapter " data-level = "2.5" data-path = "../cloud-native/setup-kubernetes-with-rancher-and-aliyun.html" >
< a href = "../cloud-native/setup-kubernetes-with-rancher-and-aliyun.html" >
< b > 2.5.< / b >
使用 Rancher 在阿里云上部署 Kubenretes 集群
< / a >
< / li >
< li class = "chapter " data-level = "2.6" data-path = "../cloud-native/kubernetes-and-cloud-native-app-overview.html" >
< a href = "../cloud-native/kubernetes-and-cloud-native-app-overview.html" >
< b > 2.6.< / b >
Kubernetes 与云原生应用概览
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< / li >
< li class = "chapter " data-level = "2.7" data-path = "../cloud-native/from-kubernetes-to-cloud-native.html" >
< a href = "../cloud-native/from-kubernetes-to-cloud-native.html" >
< b > 2.7.< / b >
云原生应用之路 —— 从 Kubernetes 到 Cloud Native
< / a >
< / li >
< li class = "chapter " data-level = "2.8" data-path = "../cloud-native/cloud-native-programming-languages.html" >
< a href = "../cloud-native/cloud-native-programming-languages.html" >
< b > 2.8.< / b >
云原生编程语言
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< li class = "chapter " data-level = "2.8.1" data-path = "../cloud-native/cloud-native-programming-language-ballerina.html" >
< a href = "../cloud-native/cloud-native-programming-language-ballerina.html" >
< b > 2.8.1.< / b >
云原生编程语言 Ballerina
< / a >
< / li >
< li class = "chapter " data-level = "2.8.2" data-path = "../cloud-native/cloud-native-programming-language-pulumi.html" >
< a href = "../cloud-native/cloud-native-programming-language-pulumi.html" >
< b > 2.8.2.< / b >
云原生编程语言 Pulumi
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< li class = "chapter " data-level = "2.9" data-path = "../cloud-native/the-future-of-cloud-native.html" >
< a href = "../cloud-native/the-future-of-cloud-native.html" >
< b > 2.9.< / b >
云原生的未来
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< / li >
< li class = "chapter " data-level = "2.10" data-path = "../cloud-native/define-cloud-native-app.html" >
< a href = "../cloud-native/define-cloud-native-app.html" >
< b > 2.10.< / b >
定义云原生应用
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< li class = "chapter " data-level = "2.10.1" data-path = "../cloud-native/workload.html" >
< a href = "../cloud-native/workload.html" >
< b > 2.10.1.< / b >
Workload
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< / li >
< li class = "chapter " data-level = "2.10.2" data-path = "../cloud-native/component.html" >
< a href = "../cloud-native/component.html" >
< b > 2.10.2.< / b >
Component
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< / li >
< li class = "chapter " data-level = "2.10.3" data-path = "../cloud-native/trait.html" >
< a href = "../cloud-native/trait.html" >
< b > 2.10.3.< / b >
Trait
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< / li >
< li class = "chapter " data-level = "2.10.4" data-path = "../cloud-native/application-scope.html" >
< a href = "../cloud-native/application-scope.html" >
< b > 2.10.4.< / b >
Application Scope
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< / li >
< li class = "chapter " data-level = "2.10.5" data-path = "../cloud-native/application-configuration.html" >
< a href = "../cloud-native/application-configuration.html" >
< b > 2.10.5.< / b >
Application Configuration
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< / li >
< li class = "header" > 概念与原理< / li >
< li class = "chapter " data-level = "3.1" data-path = "../concepts/" >
< a href = "../concepts/" >
< b > 3.1.< / b >
Kubernetes 架构
< / a >
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< li class = "chapter " data-level = "3.1.1" data-path = "../concepts/concepts.html" >
< a href = "../concepts/concepts.html" >
< b > 3.1.1.< / b >
设计理念
< / a >
< / li >
< li class = "chapter " data-level = "3.1.2" data-path = "../concepts/etcd.html" >
< a href = "../concepts/etcd.html" >
< b > 3.1.2.< / b >
Etcd 解析
< / a >
< / li >
< li class = "chapter " data-level = "3.1.3" data-path = "../concepts/open-interfaces.html" >
< a href = "../concepts/open-interfaces.html" >
< b > 3.1.3.< / b >
开放接口
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< li class = "chapter " data-level = "3.1.3.1" data-path = "../concepts/cri.html" >
< a href = "../concepts/cri.html" >
< b > 3.1.3.1.< / b >
CRI - Container Runtime Interface（ ）
< / a >
< / li >
< li class = "chapter " data-level = "3.1.3.2" data-path = "../concepts/cni.html" >
< a href = "../concepts/cni.html" >
< b > 3.1.3.2.< / b >
CNI - Container Network Interface（ ）
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< / li >
< li class = "chapter " data-level = "3.1.3.3" data-path = "../concepts/csi.html" >
< a href = "../concepts/csi.html" >
< b > 3.1.3.3.< / b >
CSI - Container Storage Interface（ ）
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< li class = "chapter " data-level = "3.2" data-path = "../concepts/networking.html" >
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< b > 3.2.< / b >
Kubernetes 中的网络
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< li class = "chapter " data-level = "3.2.1" data-path = "../concepts/flannel.html" >
< a href = "../concepts/flannel.html" >
< b > 3.2.1.< / b >
Kubernetes 中的网络解析 —— 以 flannel 为例
< / a >
< / li >
< li class = "chapter " data-level = "3.2.2" data-path = "../concepts/calico.html" >
< a href = "../concepts/calico.html" >
< b > 3.2.2.< / b >
Kubernetes 中的网络解析 —— 以 calico 为例
< / a >
< / li >
< li class = "chapter " data-level = "3.2.3" data-path = "../concepts/cilium.html" >
< a href = "../concepts/cilium.html" >
< b > 3.2.3.< / b >
具备 API 感知的网络和安全性管理开源软件 Cilium
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< li class = "chapter " data-level = "3.2.3.1" data-path = "../concepts/cilium-concepts.html" >
< a href = "../concepts/cilium-concepts.html" >
< b > 3.2.3.1.< / b >
Cilium 架构设计与概念解析
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< li class = "chapter " data-level = "3.3" data-path = "../concepts/objects.html" >
< a href = "../concepts/objects.html" >
< b > 3.3.< / b >
资源对象与基本概念解析
< / a >
< / li >
< li class = "chapter " data-level = "3.4" data-path = "../concepts/pod-state-and-lifecycle.html" >
< a href = "../concepts/pod-state-and-lifecycle.html" >
< b > 3.4.< / b >
Pod 状态与生命周期管理
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< li class = "chapter " data-level = "3.4.1" data-path = "../concepts/pod-overview.html" >
< a href = "../concepts/pod-overview.html" >
< b > 3.4.1.< / b >
Pod 概览
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< / li >
< li class = "chapter " data-level = "3.4.2" data-path = "../concepts/pod.html" >
< a href = "../concepts/pod.html" >
< b > 3.4.2.< / b >
Pod 解析
< / a >
< / li >
< li class = "chapter " data-level = "3.4.3" data-path = "../concepts/init-containers.html" >
< a href = "../concepts/init-containers.html" >
< b > 3.4.3.< / b >
Init 容器
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< / li >
< li class = "chapter " data-level = "3.4.4" data-path = "../concepts/pause-container.html" >
< a href = "../concepts/pause-container.html" >
< b > 3.4.4.< / b >
Pause 容器
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< / li >
< li class = "chapter " data-level = "3.4.5" data-path = "../concepts/pod-security-policy.html" >
< a href = "../concepts/pod-security-policy.html" >
< b > 3.4.5.< / b >
Pod 安全策略
< / a >
< / li >
< li class = "chapter " data-level = "3.4.6" data-path = "../concepts/pod-lifecycle.html" >
< a href = "../concepts/pod-lifecycle.html" >
< b > 3.4.6.< / b >
Pod 的生命周期
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< / li >
< li class = "chapter " data-level = "3.4.7" data-path = "../concepts/pod-hook.html" >
< a href = "../concepts/pod-hook.html" >
< b > 3.4.7.< / b >
Pod Hook
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< / li >
< li class = "chapter " data-level = "3.4.8" data-path = "../concepts/pod-preset.html" >
< a href = "../concepts/pod-preset.html" >
< b > 3.4.8.< / b >
Pod Preset
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< / li >
< li class = "chapter " data-level = "3.4.9" data-path = "../concepts/pod-disruption-budget.html" >
< a href = "../concepts/pod-disruption-budget.html" >
< b > 3.4.9.< / b >
Pod 中断与 PDB（
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< li class = "chapter " data-level = "3.5" data-path = "../concepts/cluster.html" >
< a href = "../concepts/cluster.html" >
< b > 3.5.< / b >
集群资源管理
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< ul class = "articles" >
< li class = "chapter " data-level = "3.5.1" data-path = "../concepts/node.html" >
< a href = "../concepts/node.html" >
< b > 3.5.1.< / b >
Node
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< / li >
< li class = "chapter " data-level = "3.5.2" data-path = "../concepts/namespace.html" >
< a href = "../concepts/namespace.html" >
< b > 3.5.2.< / b >
Namespace
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< / li >
< li class = "chapter " data-level = "3.5.3" data-path = "../concepts/label.html" >
< a href = "../concepts/label.html" >
< b > 3.5.3.< / b >
Label
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< / li >
< li class = "chapter " data-level = "3.5.4" data-path = "../concepts/annotation.html" >
< a href = "../concepts/annotation.html" >
< b > 3.5.4.< / b >
Annotation
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< / li >
< li class = "chapter " data-level = "3.5.5" data-path = "../concepts/taint-and-toleration.html" >
< a href = "../concepts/taint-and-toleration.html" >
< b > 3.5.5.< / b >
Taint 和 Toleration（ ）
< / a >
< / li >
< li class = "chapter " data-level = "3.5.6" data-path = "../concepts/garbage-collection.html" >
< a href = "../concepts/garbage-collection.html" >
< b > 3.5.6.< / b >
垃圾收集
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< / li >
< li class = "chapter " data-level = "3.6" data-path = "../concepts/controllers.html" >
< a href = "../concepts/controllers.html" >
< b > 3.6.< / b >
控制器
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< ul class = "articles" >
< li class = "chapter " data-level = "3.6.1" data-path = "../concepts/deployment.html" >
< a href = "../concepts/deployment.html" >
< b > 3.6.1.< / b >
Deployment
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< / li >
< li class = "chapter " data-level = "3.6.2" data-path = "../concepts/statefulset.html" >
< a href = "../concepts/statefulset.html" >
< b > 3.6.2.< / b >
StatefulSet
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< / li >
< li class = "chapter " data-level = "3.6.3" data-path = "../concepts/daemonset.html" >
< a href = "../concepts/daemonset.html" >
< b > 3.6.3.< / b >
DaemonSet
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< li class = "chapter " data-level = "3.6.4" data-path = "../concepts/replicaset.html" >
< a href = "../concepts/replicaset.html" >
< b > 3.6.4.< / b >
ReplicationController 和 ReplicaSet
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< / li >
< li class = "chapter " data-level = "3.6.5" data-path = "../concepts/job.html" >
< a href = "../concepts/job.html" >
< b > 3.6.5.< / b >
Job
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< / li >
< li class = "chapter " data-level = "3.6.6" data-path = "../concepts/cronjob.html" >
< a href = "../concepts/cronjob.html" >
< b > 3.6.6.< / b >
CronJob
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< / li >
< li class = "chapter " data-level = "3.6.7" data-path = "../concepts/horizontal-pod-autoscaling.html" >
< a href = "../concepts/horizontal-pod-autoscaling.html" >
< b > 3.6.7.< / b >
Horizontal Pod Autoscaling
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< ul class = "articles" >
< li class = "chapter " data-level = "3.6.7.1" data-path = "../concepts/custom-metrics-hpa.html" >
< a href = "../concepts/custom-metrics-hpa.html" >
< b > 3.6.7.1.< / b >
自定义指标 HPA
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< li class = "chapter " data-level = "3.6.8" data-path = "../concepts/admission-controller.html" >
< a href = "../concepts/admission-controller.html" >
< b > 3.6.8.< / b >
准入控制器（ ）
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< / li >
< li class = "chapter " data-level = "3.7" data-path = "../concepts/service-discovery.html" >
< a href = "../concepts/service-discovery.html" >
< b > 3.7.< / b >
服务发现
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< ul class = "articles" >
< li class = "chapter " data-level = "3.7.1" data-path = "../concepts/service.html" >
< a href = "../concepts/service.html" >
< b > 3.7.1.< / b >
Service
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< / li >
< li class = "chapter " data-level = "3.7.2" data-path = "../concepts/ingress.html" >
< a href = "../concepts/ingress.html" >
< b > 3.7.2.< / b >
Ingress
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< ul class = "articles" >
< li class = "chapter " data-level = "3.7.2.1" data-path = "../concepts/traefik-ingress-controller.html" >
< a href = "../concepts/traefik-ingress-controller.html" >
< b > 3.7.2.1.< / b >
Traefik Ingress Controller
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< li class = "chapter " data-level = "3.8" data-path = "../concepts/authentication-and-permission.html" >
< a href = "../concepts/authentication-and-permission.html" >
< b > 3.8.< / b >
身份与权限控制
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< ul class = "articles" >
< li class = "chapter " data-level = "3.8.1" data-path = "../concepts/serviceaccount.html" >
< a href = "../concepts/serviceaccount.html" >
< b > 3.8.1.< / b >
ServiceAccount
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< / li >
< li class = "chapter " data-level = "3.8.2" data-path = "../concepts/rbac.html" >
< a href = "../concepts/rbac.html" >
< b > 3.8.2.< / b >
RBAC—— 基于角色的访问控制
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< / li >
< li class = "chapter " data-level = "3.8.3" data-path = "../concepts/network-policy.html" >
< a href = "../concepts/network-policy.html" >
< b > 3.8.3.< / b >
NetworkPolicy
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< li class = "chapter " data-level = "3.9" data-path = "../concepts/storage.html" >
< a href = "../concepts/storage.html" >
< b > 3.9.< / b >
存储
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< li class = "chapter " data-level = "3.9.1" data-path = "../concepts/secret.html" >
< a href = "../concepts/secret.html" >
< b > 3.9.1.< / b >
Secret
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< / li >
< li class = "chapter " data-level = "3.9.2" data-path = "../concepts/configmap.html" >
< a href = "../concepts/configmap.html" >
< b > 3.9.2.< / b >
ConfigMap
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< li class = "chapter " data-level = "3.9.2.1" data-path = "../concepts/configmap-hot-update.html" >
< a href = "../concepts/configmap-hot-update.html" >
< b > 3.9.2.1.< / b >
ConfigMap 的热更新
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< li class = "chapter " data-level = "3.9.3" data-path = "../concepts/volume.html" >
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< b > 3.9.3.< / b >
Volume
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< li class = "chapter " data-level = "3.9.4" data-path = "../concepts/persistent-volume.html" >
< a href = "../concepts/persistent-volume.html" >
< b > 3.9.4.< / b >
Persistent Volume（ ）
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< li class = "chapter " data-level = "3.9.5" data-path = "../concepts/storageclass.html" >
< a href = "../concepts/storageclass.html" >
< b > 3.9.5.< / b >
Storage Class
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< li class = "chapter " data-level = "3.9.6" data-path = "../concepts/local-persistent-storage.html" >
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< b > 3.9.6.< / b >
本地持久化存储
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< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "3.10" data-path = "../concepts/extension.html" >
< a href = "../concepts/extension.html" >
< b > 3.10.< / b >
集群扩展
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.10.1" data-path = "../concepts/custom-resource.html" >
< a href = "../concepts/custom-resource.html" >
< b > 3.10.1.< / b >
使用自定义资源扩展 API
< / a >
< / li >
< li class = "chapter " data-level = "3.10.2" data-path = "../concepts/crd.html" >
< a href = "../concepts/crd.html" >
< b > 3.10.2.< / b >
使用 CRD 扩展 Kubernetes API
< / a >
< / li >
< li class = "chapter " data-level = "3.10.3" data-path = "../concepts/aggregated-api-server.html" >
< a href = "../concepts/aggregated-api-server.html" >
< b > 3.10.3.< / b >
Aggregated API Server
< / a >
< / li >
< li class = "chapter " data-level = "3.10.4" data-path = "../concepts/apiservice.html" >
< a href = "../concepts/apiservice.html" >
< b > 3.10.4.< / b >
APIService
< / a >
< / li >
< li class = "chapter " data-level = "3.10.5" data-path = "../concepts/service-catalog.html" >
< a href = "../concepts/service-catalog.html" >
< b > 3.10.5.< / b >
Service Catalog
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "3.11" data-path = "../concepts/scheduling.html" >
< a href = "../concepts/scheduling.html" >
< b > 3.11.< / b >
资源调度
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.11.1" data-path = "../concepts/qos.html" >
< a href = "../concepts/qos.html" >
< b > 3.11.1.< / b >
QoS（ ）
< / a >
< / li >
< / ul >
< / li >
< li class = "header" > 用户指南< / li >
< li class = "chapter " data-level = "4.1" data-path = "../guide/" >
< a href = "../guide/" >
< b > 4.1.< / b >
用户指南
< / a >
< / li >
< li class = "chapter " data-level = "4.2" data-path = "../guide/resource-configuration.html" >
< a href = "../guide/resource-configuration.html" >
< b > 4.2.< / b >
资源对象配置
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "4.2.1" data-path = "../guide/configure-liveness-readiness-probes.html" >
< a href = "../guide/configure-liveness-readiness-probes.html" >
< b > 4.2.1.< / b >
配置 Pod 的 liveness 和 readiness 探针
< / a >
< / li >
< li class = "chapter " data-level = "4.2.2" data-path = "../guide/configure-pod-service-account.html" >
< a href = "../guide/configure-pod-service-account.html" >
< b > 4.2.2.< / b >
配置 Pod 的 Service Account
< / a >
< / li >
< li class = "chapter " data-level = "4.2.3" data-path = "../guide/secret-configuration.html" >
< a href = "../guide/secret-configuration.html" >
< b > 4.2.3.< / b >
Secret 配置
< / a >
< / li >
< li class = "chapter " data-level = "4.2.4" data-path = "../guide/resource-quota-management.html" >
< a href = "../guide/resource-quota-management.html" >
< b > 4.2.4.< / b >
管理 namespace 中的资源配额
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "4.3" data-path = "../guide/command-usage.html" >
< a href = "../guide/command-usage.html" >
< b > 4.3.< / b >
命令使用
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "4.3.1" data-path = "../guide/docker-cli-to-kubectl.html" >
< a href = "../guide/docker-cli-to-kubectl.html" >
< b > 4.3.1.< / b >
Docker 用户过渡到 kubectl 命令行指南
< / a >
< / li >
< li class = "chapter " data-level = "4.3.2" data-path = "../guide/using-kubectl.html" >
< a href = "../guide/using-kubectl.html" >
< b > 4.3.2.< / b >
kubectl 命令概览
< / a >
< / li >
< li class = "chapter " data-level = "4.3.3" data-path = "../guide/kubectl-cheatsheet.html" >
< a href = "../guide/kubectl-cheatsheet.html" >
< b > 4.3.3.< / b >
kubectl 命令技巧大全
< / a >
< / li >
< li class = "chapter " data-level = "4.3.4" data-path = "../guide/using-etcdctl-to-access-kubernetes-data.html" >
< a href = "../guide/using-etcdctl-to-access-kubernetes-data.html" >
< b > 4.3.4.< / b >
使用 etcdctl 访问 kubernetes 数据
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "4.4" data-path = "../guide/cluster-security-management.html" >
< a href = "../guide/cluster-security-management.html" >
< b > 4.4.< / b >
集群安全性管理
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "4.4.1" data-path = "../guide/managing-tls-in-a-cluster.html" >
< a href = "../guide/managing-tls-in-a-cluster.html" >
< b > 4.4.1.< / b >
管理集群中的 TLS
< / a >
< / li >
< li class = "chapter " data-level = "4.4.2" data-path = "../guide/kubelet-authentication-authorization.html" >
< a href = "../guide/kubelet-authentication-authorization.html" >
< b > 4.4.2.< / b >
kubelet 的认证授权
< / a >
< / li >
< li class = "chapter " data-level = "4.4.3" data-path = "../guide/tls-bootstrapping.html" >
< a href = "../guide/tls-bootstrapping.html" >
< b > 4.4.3.< / b >
TLS bootstrap
< / a >
< / li >
< li class = "chapter " data-level = "4.4.4" data-path = "../guide/kubectl-user-authentication-authorization.html" >
< a href = "../guide/kubectl-user-authentication-authorization.html" >
< b > 4.4.4.< / b >
创建用户认证授权的 kubeconfig 文件
< / a >
< / li >
< li class = "chapter " data-level = "4.4.5" data-path = "../guide/ip-masq-agent.html" >
< a href = "../guide/ip-masq-agent.html" >
< b > 4.4.5.< / b >
IP 伪装代理
< / a >
< / li >
< li class = "chapter " data-level = "4.4.6" data-path = "../guide/auth-with-kubeconfig-or-token.html" >
< a href = "../guide/auth-with-kubeconfig-or-token.html" >
< b > 4.4.6.< / b >
使用 kubeconfig 或 token 进行用户身份认证
< / a >
< / li >
< li class = "chapter " data-level = "4.4.7" data-path = "../guide/authentication.html" >
< a href = "../guide/authentication.html" >
< b > 4.4.7.< / b >
Kubernetes 中的用户与身份认证授权
< / a >
< / li >
< li class = "chapter " data-level = "4.4.8" data-path = "../guide/kubernetes-security-best-practice.html" >
< a href = "../guide/kubernetes-security-best-practice.html" >
< b > 4.4.8.< / b >
Kubernetes 集群安全性配置最佳实践
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "4.5" data-path = "../guide/access-kubernetes-cluster.html" >
< a href = "../guide/access-kubernetes-cluster.html" >
< b > 4.5.< / b >
访问 Kubernetes 集群
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "4.5.1" data-path = "../guide/access-cluster.html" >
< a href = "../guide/access-cluster.html" >
< b > 4.5.1.< / b >
访问集群
< / a >
< / li >
< li class = "chapter " data-level = "4.5.2" data-path = "../guide/authenticate-across-clusters-kubeconfig.html" >
< a href = "../guide/authenticate-across-clusters-kubeconfig.html" >
< b > 4.5.2.< / b >
使用 kubeconfig 文件配置跨集群认证
< / a >
< / li >
< li class = "chapter " data-level = "4.5.3" data-path = "../guide/connecting-to-applications-port-forward.html" >
< a href = "../guide/connecting-to-applications-port-forward.html" >
< b > 4.5.3.< / b >
通过端口转发访问集群中的应用程序
< / a >
< / li >
< li class = "chapter " data-level = "4.5.4" data-path = "../guide/service-access-application-cluster.html" >
< a href = "../guide/service-access-application-cluster.html" >
< b > 4.5.4.< / b >
使用 service 访问群集中的应用程序
< / a >
< / li >
< li class = "chapter " data-level = "4.5.5" data-path = "../guide/accessing-kubernetes-pods-from-outside-of-the-cluster.html" >
< a href = "../guide/accessing-kubernetes-pods-from-outside-of-the-cluster.html" >
< b > 4.5.5.< / b >
从外部访问 Kubernetes 中的 Pod
< / a >
< / li >
< li class = "chapter " data-level = "4.5.6" data-path = "../guide/cabin-mobile-dashboard-for-kubernetes.html" >
< a href = "../guide/cabin-mobile-dashboard-for-kubernetes.html" >
< b > 4.5.6.< / b >
Cabin - Kubernetes 手机客户端
< / a >
< / li >
< li class = "chapter " data-level = "4.5.7" data-path = "../guide/kubernetes-desktop-client.html" >
< a href = "../guide/kubernetes-desktop-client.html" >
< b > 4.5.7.< / b >
Kubernetic - Kubernetes 桌面客户端
< / a >
< / li >
< li class = "chapter " data-level = "4.5.8" data-path = "../guide/kubernator-kubernetes-ui.html" >
< a href = "../guide/kubernator-kubernetes-ui.html" >
< b > 4.5.8.< / b >
Kubernator - 更底层的 Kubernetes UI
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "4.6" data-path = "../guide/application-development-deployment-flow.html" >
< a href = "../guide/application-development-deployment-flow.html" >
< b > 4.6.< / b >
在 Kubernetes 中开发部署应用
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "4.6.1" data-path = "../guide/deploy-applications-in-kubernetes.html" >
< a href = "../guide/deploy-applications-in-kubernetes.html" >
< b > 4.6.1.< / b >
适用于 kubernetes 的应用开发部署流程
< / a >
< / li >
< li class = "chapter " data-level = "4.6.2" data-path = "../guide/migrating-hadoop-yarn-to-kubernetes.html" >
< a href = "../guide/migrating-hadoop-yarn-to-kubernetes.html" >
< b > 4.6.2.< / b >
迁移传统应用到 Kubernetes 中 —— 以 Hadoop YARN 为例
< / a >
< / li >
< li class = "chapter " data-level = "4.6.3" data-path = "../guide/using-statefulset.html" >
< a href = "../guide/using-statefulset.html" >
< b > 4.6.3.< / b >
使用 StatefulSet 部署用状态应用
< / a >
< / li >
< / ul >
< / li >
< li class = "header" > 最佳实践< / li >
< li class = "chapter " data-level = "5.1" data-path = "./" >
< a href = "./" >
< b > 5.1.< / b >
最佳实践概览
< / a >
< / li >
< li class = "chapter " data-level = "5.2" data-path = "install-kubernetes-on-centos.html" >
< a href = "install-kubernetes-on-centos.html" >
< b > 5.2.< / b >
在 CentOS 上部署 Kubernetes 集群
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.2.1" data-path = "create-tls-and-secret-key.html" >
< a href = "create-tls-and-secret-key.html" >
< b > 5.2.1.< / b >
创建 TLS 证书和秘钥
< / a >
< / li >
< li class = "chapter " data-level = "5.2.2" data-path = "create-kubeconfig.html" >
< a href = "create-kubeconfig.html" >
< b > 5.2.2.< / b >
创建 kubeconfig 文件
< / a >
< / li >
< li class = "chapter " data-level = "5.2.3" data-path = "etcd-cluster-installation.html" >
< a href = "etcd-cluster-installation.html" >
< b > 5.2.3.< / b >
创建高可用 etcd 集群
< / a >
< / li >
< li class = "chapter " data-level = "5.2.4" data-path = "kubectl-installation.html" >
< a href = "kubectl-installation.html" >
< b > 5.2.4.< / b >
安装 kubectl 命令行工具
< / a >
< / li >
< li class = "chapter " data-level = "5.2.5" data-path = "master-installation.html" >
< a href = "master-installation.html" >
< b > 5.2.5.< / b >
部署 master 节点
< / a >
< / li >
< li class = "chapter " data-level = "5.2.6" data-path = "flannel-installation.html" >
< a href = "flannel-installation.html" >
< b > 5.2.6.< / b >
安装 flannel 网络插件
< / a >
< / li >
< li class = "chapter " data-level = "5.2.7" data-path = "node-installation.html" >
< a href = "node-installation.html" >
< b > 5.2.7.< / b >
部署 node 节点
< / a >
< / li >
< li class = "chapter " data-level = "5.2.8" data-path = "kubedns-addon-installation.html" >
< a href = "kubedns-addon-installation.html" >
< b > 5.2.8.< / b >
安装 kubedns 插件
< / a >
< / li >
< li class = "chapter " data-level = "5.2.9" data-path = "dashboard-addon-installation.html" >
< a href = "dashboard-addon-installation.html" >
< b > 5.2.9.< / b >
安装 dashboard 插件
< / a >
< / li >
< li class = "chapter " data-level = "5.2.10" data-path = "heapster-addon-installation.html" >
< a href = "heapster-addon-installation.html" >
< b > 5.2.10.< / b >
安装 heapster 插件
< / a >
< / li >
< li class = "chapter " data-level = "5.2.11" data-path = "efk-addon-installation.html" >
< a href = "efk-addon-installation.html" >
< b > 5.2.11.< / b >
安装 EFK 插件
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "5.3" data-path = "install-kubernetes-with-kubeadm.html" >
< a href = "install-kubernetes-with-kubeadm.html" >
< b > 5.3.< / b >
生产级的 Kubernetes 简化管理工具 kubeadm
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.3.1" data-path = "install-kubernetes-on-ubuntu-server-16.04-with-kubeadm.html" >
< a href = "install-kubernetes-on-ubuntu-server-16.04-with-kubeadm.html" >
< b > 5.3.1.< / b >
使用 kubeadm 在 Ubuntu Server 16.04 上快速构建测试集群
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "5.4" data-path = "service-discovery-and-loadbalancing.html" >
< a href = "service-discovery-and-loadbalancing.html" >
< b > 5.4.< / b >
服务发现与负载均衡
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.4.1" data-path = "traefik-ingress-installation.html" >
< a href = "traefik-ingress-installation.html" >
< b > 5.4.1.< / b >
安装 Traefik ingress
< / a >
< / li >
< li class = "chapter " data-level = "5.4.2" data-path = "distributed-load-test.html" >
< a href = "distributed-load-test.html" >
< b > 5.4.2.< / b >
分布式负载测试
< / a >
< / li >
< li class = "chapter " data-level = "5.4.3" data-path = "network-and-cluster-perfermance-test.html" >
< a href = "network-and-cluster-perfermance-test.html" >
< b > 5.4.3.< / b >
网络和集群性能测试
< / a >
< / li >
< li class = "chapter " data-level = "5.4.4" data-path = "edge-node-configuration.html" >
< a href = "edge-node-configuration.html" >
< b > 5.4.4.< / b >
边缘节点配置
< / a >
< / li >
< li class = "chapter " data-level = "5.4.5" data-path = "nginx-ingress-installation.html" >
< a href = "nginx-ingress-installation.html" >
< b > 5.4.5.< / b >
安装 Nginx ingress
< / a >
< / li >
< li class = "chapter " data-level = "5.4.6" data-path = "dns-installation.html" >
< a href = "dns-installation.html" >
< b > 5.4.6.< / b >
安装配置 DNS
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.4.6.1" data-path = "configuring-dns.html" >
< a href = "configuring-dns.html" >
< b > 5.4.6.1.< / b >
安装配置 Kube-dns
< / a >
< / li >
< li class = "chapter " data-level = "5.4.6.2" data-path = "coredns.html" >
< a href = "coredns.html" >
< b > 5.4.6.2.< / b >
安装配置 CoreDNS
< / a >
< / li >
< / ul >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "5.5" data-path = "operation.html" >
< a href = "operation.html" >
< b > 5.5.< / b >
运维管理
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.5.1" data-path = "master-ha.html" >
< a href = "master-ha.html" >
< b > 5.5.1.< / b >
Master 节点高可用
< / a >
< / li >
< li class = "chapter " data-level = "5.5.2" data-path = "service-rolling-update.html" >
< a href = "service-rolling-update.html" >
< b > 5.5.2.< / b >
服务滚动升级
< / a >
< / li >
< li class = "chapter " data-level = "5.5.3" data-path = "app-log-collection.html" >
< a href = "app-log-collection.html" >
< b > 5.5.3.< / b >
应用日志收集
< / a >
< / li >
< li class = "chapter " data-level = "5.5.4" data-path = "configuration-best-practice.html" >
< a href = "configuration-best-practice.html" >
< b > 5.5.4.< / b >
配置最佳实践
< / a >
< / li >
< li class = "chapter " data-level = "5.5.5" data-path = "monitor.html" >
< a href = "monitor.html" >
< b > 5.5.5.< / b >
集群及应用监控
< / a >
< / li >
< li class = "chapter " data-level = "5.5.6" data-path = "data-persistence-problem.html" >
< a href = "data-persistence-problem.html" >
< b > 5.5.6.< / b >
数据持久化问题
< / a >
< / li >
< li class = "chapter active" data-level = "5.5.7" data-path = "manage-compute-resources-container.html" >
< a href = "manage-compute-resources-container.html" >
< b > 5.5.7.< / b >
管理容器的计算资源
< / a >
< / li >
< li class = "chapter " data-level = "5.5.8" data-path = "federation.html" >
< a href = "federation.html" >
< b > 5.5.8.< / b >
集群联邦
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "5.6" data-path = "storage.html" >
< a href = "storage.html" >
< b > 5.6.< / b >
存储管理
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.6.1" data-path = "glusterfs.html" >
< a href = "glusterfs.html" >
< b > 5.6.1.< / b >
GlusterFS
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.6.1.1" data-path = "using-glusterfs-for-persistent-storage.html" >
< a href = "using-glusterfs-for-persistent-storage.html" >
< b > 5.6.1.1.< / b >
使用 GlusterFS 做持久化存储
< / a >
< / li >
< li class = "chapter " data-level = "5.6.1.2" data-path = "using-heketi-gluster-for-persistent-storage.html" >
< a href = "using-heketi-gluster-for-persistent-storage.html" >
< b > 5.6.1.2.< / b >
使用 Heketi 作为 Kubernetes 的持久存储 GlusterFS 的 external provisioner
< / a >
< / li >
< li class = "chapter " data-level = "5.6.1.3" data-path = "storage-for-containers-using-glusterfs-with-openshift.html" >
< a href = "storage-for-containers-using-glusterfs-with-openshift.html" >
< b > 5.6.1.3.< / b >
在 OpenShift 中使用 GlusterFS 做持久化存储
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "5.6.2" data-path = "glusterd-2.0.html" >
< a href = "glusterd-2.0.html" >
< b > 5.6.2.< / b >
GlusterD-2.0
< / a >
< / li >
< li class = "chapter " data-level = "5.6.3" data-path = "ceph.html" >
< a href = "ceph.html" >
< b > 5.6.3.< / b >
Ceph
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.6.3.1" data-path = "ceph-helm-install-guide-zh.html" >
< a href = "ceph-helm-install-guide-zh.html" >
< b > 5.6.3.1.< / b >
用 Helm 托管安装 Ceph 集群并提供后端存储
< / a >
< / li >
< li class = "chapter " data-level = "5.6.3.2" data-path = "using-ceph-for-persistent-storage.html" >
< a href = "using-ceph-for-persistent-storage.html" >
< b > 5.6.3.2.< / b >
使用 Ceph 做持久化存储
< / a >
< / li >
< li class = "chapter " data-level = "5.6.3.3" data-path = "rbd-provisioner.html" >
< a href = "rbd-provisioner.html" >
< b > 5.6.3.3.< / b >
使用 rbd-provisioner 提供 rbd 持久化存储
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "5.6.4" data-path = "openebs.html" >
< a href = "openebs.html" >
< b > 5.6.4.< / b >
OpenEBS
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.6.4.1" data-path = "using-openebs-for-persistent-storage.html" >
< a href = "using-openebs-for-persistent-storage.html" >
< b > 5.6.4.1.< / b >
使用 OpenEBS 做持久化存储
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "5.6.5" data-path = "rook.html" >
< a href = "rook.html" >
< b > 5.6.5.< / b >
Rook
< / a >
< / li >
< li class = "chapter " data-level = "5.6.6" data-path = "nfs.html" >
< a href = "nfs.html" >
< b > 5.6.6.< / b >
NFS
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.6.6.1" data-path = "using-nfs-for-persistent-storage.html" >
< a href = "using-nfs-for-persistent-storage.html" >
< b > 5.6.6.1.< / b >
利用 NFS 动态提供 Kubernetes 后端存储卷
< / a >
< / li >
< / ul >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "5.7" data-path = "monitoring.html" >
< a href = "monitoring.html" >
< b > 5.7.< / b >
集群与应用监控
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.7.1" data-path = "heapster.html" >
< a href = "heapster.html" >
< b > 5.7.1.< / b >
Heapster
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.7.1.1" data-path = "using-heapster-to-get-object-metrics.html" >
< a href = "using-heapster-to-get-object-metrics.html" >
< b > 5.7.1.1.< / b >
使用 Heapster 获取集群和对象的 metric 数据
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "5.7.2" data-path = "prometheus.html" >
< a href = "prometheus.html" >
< b > 5.7.2.< / b >
Prometheus
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.7.2.1" data-path = "using-prometheus-to-monitor-kuberentes-cluster.html" >
< a href = "using-prometheus-to-monitor-kuberentes-cluster.html" >
< b > 5.7.2.1.< / b >
使用 Prometheus 监控 kubernetes 集群
< / a >
< / li >
< li class = "chapter " data-level = "5.7.2.2" data-path = "promql.html" >
< a href = "promql.html" >
< b > 5.7.2.2.< / b >
Prometheus 查询语言 PromQL 使用说明
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "5.7.3" data-path = "vistio-visualize-your-istio-mesh.html" >
< a href = "vistio-visualize-your-istio-mesh.html" >
< b > 5.7.3.< / b >
使用 Vistio 监控 Istio 服务网格中的流量
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "5.8" data-path = "distributed-tracing.html" >
< a href = "distributed-tracing.html" >
< b > 5.8.< / b >
分布式跟踪
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.8.1" data-path = "opentracing.html" >
< a href = "opentracing.html" >
< b > 5.8.1.< / b >
OpenTracing
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "5.9" data-path = "services-management-tool.html" >
< a href = "services-management-tool.html" >
< b > 5.9.< / b >
服务编排管理
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.9.1" data-path = "helm.html" >
< a href = "helm.html" >
< b > 5.9.1.< / b >
使用 Helm 管理 Kubernetes 应用
< / a >
< / li >
< li class = "chapter " data-level = "5.9.2" data-path = "create-private-charts-repo.html" >
< a href = "create-private-charts-repo.html" >
< b > 5.9.2.< / b >
构建私有 Chart 仓库
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "5.10" data-path = "ci-cd.html" >
< a href = "ci-cd.html" >
< b > 5.10.< / b >
持续集成与发布
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.10.1" data-path = "jenkins-ci-cd.html" >
< a href = "jenkins-ci-cd.html" >
< b > 5.10.1.< / b >
使用 Jenkins 进行持续集成与发布
< / a >
< / li >
< li class = "chapter " data-level = "5.10.2" data-path = "drone-ci-cd.html" >
< a href = "drone-ci-cd.html" >
< b > 5.10.2.< / b >
使用 Drone 进行持续集成与发布
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "5.11" data-path = "update-and-upgrade.html" >
< a href = "update-and-upgrade.html" >
< b > 5.11.< / b >
更新与升级
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.11.1" data-path = "manually-upgrade.html" >
< a href = "manually-upgrade.html" >
< b > 5.11.1.< / b >
手动升级 Kubernetes 集群
< / a >
< / li >
< li class = "chapter " data-level = "5.11.2" data-path = "dashboard-upgrade.html" >
< a href = "dashboard-upgrade.html" >
< b > 5.11.2.< / b >
升级 dashboard
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "5.12" data-path = "controller-extended.html" >
< a href = "controller-extended.html" >
< b > 5.12.< / b >
扩展控制器
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.12.1" data-path = "openkruise.html" >
< a href = "openkruise.html" >
< b > 5.12.1.< / b >
OpenKruise
< / a >
2020-06-22 17:07:42 +08:00
< ul class = "articles" >
< li class = "chapter " data-level = "5.12.1.1" data-path = "in-place-update.html" >
< a href = "in-place-update.html" >
< b > 5.12.1.1.< / b >
原地升级
< / a >
< / li >
< / ul >
2020-06-19 14:52:56 +08:00
< / li >
< / ul >
< / li >
< li class = "header" > 领域应用< / li >
< li class = "chapter " data-level = "6.1" data-path = "../usecases/" >
< a href = "../usecases/" >
< b > 6.1.< / b >
领域应用概览
< / a >
< / li >
< li class = "chapter " data-level = "6.2" data-path = "../usecases/microservices.html" >
< a href = "../usecases/microservices.html" >
< b > 6.2.< / b >
微服务架构
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.2.1" data-path = "../usecases/service-discovery-in-microservices.html" >
< a href = "../usecases/service-discovery-in-microservices.html" >
< b > 6.2.1.< / b >
微服务中的服务发现
< / a >
< / li >
< li class = "chapter " data-level = "6.2.2" data-path = "../usecases/microservices-for-java-developers.html" >
< a href = "../usecases/microservices-for-java-developers.html" >
< b > 6.2.2.< / b >
使用 Java 构建微服务并发布到 Kubernetes 平台
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.2.2.1" data-path = "../usecases/spring-boot-quick-start-guide.html" >
< a href = "../usecases/spring-boot-quick-start-guide.html" >
< b > 6.2.2.1.< / b >
Spring Boot 快速开始指南
< / a >
< / li >
< / ul >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "6.3" data-path = "../usecases/service-mesh.html" >
< a href = "../usecases/service-mesh.html" >
< b > 6.3.< / b >
Service Mesh 服务网格
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.3.1" data-path = "../usecases/the-enterprise-path-to-service-mesh-architectures.html" >
< a href = "../usecases/the-enterprise-path-to-service-mesh-architectures.html" >
< b > 6.3.1.< / b >
企业级服务网格架构
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.3.1.1" data-path = "../usecases/service-mesh-fundamental.html" >
< a href = "../usecases/service-mesh-fundamental.html" >
< b > 6.3.1.1.< / b >
Service Mesh 基础
< / a >
< / li >
< li class = "chapter " data-level = "6.3.1.2" data-path = "../usecases/comparing-service-mesh-technologies.html" >
< a href = "../usecases/comparing-service-mesh-technologies.html" >
< b > 6.3.1.2.< / b >
Service Mesh 技术对比
< / a >
< / li >
< li class = "chapter " data-level = "6.3.1.3" data-path = "../usecases/service-mesh-adoption-and-evolution.html" >
< a href = "../usecases/service-mesh-adoption-and-evolution.html" >
< b > 6.3.1.3.< / b >
采纳和演进
< / a >
< / li >
< li class = "chapter " data-level = "6.3.1.4" data-path = "../usecases/service-mesh-customization-and-integration.html" >
< a href = "../usecases/service-mesh-customization-and-integration.html" >
< b > 6.3.1.4.< / b >
定制和集成
< / a >
< / li >
< li class = "chapter " data-level = "6.3.1.5" data-path = "../usecases/service-mesh-conclusion.html" >
< a href = "../usecases/service-mesh-conclusion.html" >
< b > 6.3.1.5.< / b >
总结
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "6.3.2" data-path = "../usecases/istio.html" >
< a href = "../usecases/istio.html" >
< b > 6.3.2.< / b >
Istio
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.3.2.1" data-path = "../usecases/istio-installation.html" >
< a href = "../usecases/istio-installation.html" >
< b > 6.3.2.1.< / b >
安装并试用 Istio service mesh
< / a >
< / li >
< li class = "chapter " data-level = "6.3.2.2" data-path = "../usecases/sidecar-spec-in-istio.html" >
< a href = "../usecases/sidecar-spec-in-istio.html" >
< b > 6.3.2.2.< / b >
Istio 中 sidecar 的注入规范及示例
< / a >
< / li >
< li class = "chapter " data-level = "6.3.2.3" data-path = "../usecases/istio-community-tips.html" >
< a href = "../usecases/istio-community-tips.html" >
< b > 6.3.2.3.< / b >
如何参与 Istio 社区及注意事项
< / a >
< / li >
< li class = "chapter " data-level = "6.3.2.4" data-path = "../usecases/istio-tutorials-collection.html" >
< a href = "../usecases/istio-tutorials-collection.html" >
< b > 6.3.2.4.< / b >
Istio 免费学习资源汇总
< / a >
< / li >
< li class = "chapter " data-level = "6.3.2.5" data-path = "../usecases/understand-sidecar-injection-and-traffic-hijack-in-istio-service-mesh.html" >
< a href = "../usecases/understand-sidecar-injection-and-traffic-hijack-in-istio-service-mesh.html" >
< b > 6.3.2.5.< / b >
Sidecar 的注入与流量劫持
< / a >
< / li >
< li class = "chapter " data-level = "6.3.2.6" data-path = "../usecases/envoy-sidecar-routing-of-istio-service-mesh-deep-dive.html" >
< a href = "../usecases/envoy-sidecar-routing-of-istio-service-mesh-deep-dive.html" >
< b > 6.3.2.6.< / b >
Envoy Sidecar 代理的路由转发
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "6.3.3" data-path = "../usecases/linkerd.html" >
< a href = "../usecases/linkerd.html" >
< b > 6.3.3.< / b >
Linkerd
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.3.3.1" data-path = "../usecases/linkerd-user-guide.html" >
< a href = "../usecases/linkerd-user-guide.html" >
< b > 6.3.3.1.< / b >
Linkerd 使用指南
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "6.3.4" data-path = "../usecases/conduit.html" >
< a href = "../usecases/conduit.html" >
< b > 6.3.4.< / b >
Conduit
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.3.4.1" data-path = "../usecases/conduit-overview.html" >
< a href = "../usecases/conduit-overview.html" >
< b > 6.3.4.1.< / b >
Condiut 概览
< / a >
< / li >
< li class = "chapter " data-level = "6.3.4.2" data-path = "../usecases/conduit-installation.html" >
< a href = "../usecases/conduit-installation.html" >
< b > 6.3.4.2.< / b >
安装 Conduit
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "6.3.5" data-path = "../usecases/envoy.html" >
< a href = "../usecases/envoy.html" >
< b > 6.3.5.< / b >
Envoy
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.3.5.1" data-path = "../usecases/envoy-terminology.html" >
< a href = "../usecases/envoy-terminology.html" >
< b > 6.3.5.1.< / b >
Envoy 的架构与基本术语
< / a >
< / li >
< li class = "chapter " data-level = "6.3.5.2" data-path = "../usecases/envoy-front-proxy.html" >
< a href = "../usecases/envoy-front-proxy.html" >
< b > 6.3.5.2.< / b >
Envoy 作为前端代理
< / a >
< / li >
< li class = "chapter " data-level = "6.3.5.3" data-path = "../usecases/envoy-mesh-in-kubernetes-tutorial.html" >
< a href = "../usecases/envoy-mesh-in-kubernetes-tutorial.html" >
< b > 6.3.5.3.< / b >
Envoy mesh 教程
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "6.3.6" data-path = "../usecases/mosn.html" >
< a href = "../usecases/mosn.html" >
< b > 6.3.6.< / b >
MOSN
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "6.4" data-path = "../usecases/big-data.html" >
< a href = "../usecases/big-data.html" >
< b > 6.4.< / b >
大数据
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.4.1" data-path = "../usecases/spark-standalone-on-kubernetes.html" >
< a href = "../usecases/spark-standalone-on-kubernetes.html" >
< b > 6.4.1.< / b >
Spark standalone on Kubernetes
< / a >
< / li >
< li class = "chapter " data-level = "6.4.2" data-path = "../usecases/running-spark-with-kubernetes-native-scheduler.html" >
< a href = "../usecases/running-spark-with-kubernetes-native-scheduler.html" >
< b > 6.4.2.< / b >
运行支持 Kubernetes 原生调度的 Spark 程序
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "6.5" data-path = "../usecases/serverless.html" >
< a href = "../usecases/serverless.html" >
< b > 6.5.< / b >
Serverless 架构
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.5.1" data-path = "../usecases/understanding-serverless.html" >
< a href = "../usecases/understanding-serverless.html" >
< b > 6.5.1.< / b >
理解 Serverless
< / a >
< / li >
< li class = "chapter " data-level = "6.5.2" data-path = "../usecases/faas.html" >
< a href = "../usecases/faas.html" >
< b > 6.5.2.< / b >
FaaS（ ）
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.5.2.1" data-path = "../usecases/openfaas-quick-start.html" >
< a href = "../usecases/openfaas-quick-start.html" >
< b > 6.5.2.1.< / b >
OpenFaaS 快速入门指南
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "6.5.3" data-path = "../usecases/knative.html" >
< a href = "../usecases/knative.html" >
< b > 6.5.3.< / b >
Knative
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "6.6" data-path = "../usecases/cloud-native-app-standard.html" >
< a href = "../usecases/cloud-native-app-standard.html" >
< b > 6.6.< / b >
云原生应用标准
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.6.1" data-path = "../usecases/oam.html" >
< a href = "../usecases/oam.html" >
< b > 6.6.1.< / b >
OAM（ ）
< / a >
2020-06-23 21:27:48 +08:00
< / li >
< li class = "chapter " data-level = "6.6.2" data-path = "../usecases/crossplane.html" >
< a href = "../usecases/crossplane.html" >
< b > 6.6.2.< / b >
Crossplane
< / a >
2020-06-19 14:52:56 +08:00
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "6.7" data-path = "../usecases/edge-computing.html" >
< a href = "../usecases/edge-computing.html" >
< b > 6.7.< / b >
边缘计算
< / a >
< / li >
< li class = "chapter " data-level = "6.8" data-path = "../usecases/ai.html" >
< a href = "../usecases/ai.html" >
< b > 6.8.< / b >
人工智能
< / a >
< / li >
< li class = "header" > 开发指南< / li >
< li class = "chapter " data-level = "7.1" data-path = "../develop/" >
< a href = "../develop/" >
< b > 7.1.< / b >
开发指南概览
< / a >
< / li >
< li class = "chapter " data-level = "7.2" data-path = "../develop/sigs-and-working-group.html" >
< a href = "../develop/sigs-and-working-group.html" >
< b > 7.2.< / b >
SIG 和工作组
< / a >
< / li >
< li class = "chapter " data-level = "7.3" data-path = "../develop/developing-environment.html" >
< a href = "../develop/developing-environment.html" >
< b > 7.3.< / b >
开发环境搭建
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "7.3.1" data-path = "../develop/using-vagrant-and-virtualbox-for-development.html" >
< a href = "../develop/using-vagrant-and-virtualbox-for-development.html" >
< b > 7.3.1.< / b >
本地分布式开发环境搭建（使用 Vagrant 和 Virtualbox）
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "7.4" data-path = "../develop/testing.html" >
< a href = "../develop/testing.html" >
< b > 7.4.< / b >
单元测试和集成测试
< / a >
< / li >
< li class = "chapter " data-level = "7.5" data-path = "../develop/client-go-sample.html" >
< a href = "../develop/client-go-sample.html" >
< b > 7.5.< / b >
client-go 示例
< / a >
< / li >
< li class = "chapter " data-level = "7.6" data-path = "../develop/operator.html" >
< a href = "../develop/operator.html" >
< b > 7.6.< / b >
Operator
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "7.6.1" data-path = "../develop/operator-sdk.html" >
< a href = "../develop/operator-sdk.html" >
< b > 7.6.1.< / b >
operator-sdk
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "7.7" data-path = "../develop/kubebuilder.html" >
< a href = "../develop/kubebuilder.html" >
< b > 7.7.< / b >
kubebuilder
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "7.7.1" data-path = "../develop/kubebuilder-example.html" >
< a href = "../develop/kubebuilder-example.html" >
< b > 7.7.1.< / b >
使用 kubebuilder 创建 operator 示例
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "7.8" data-path = "../develop/advance-developer.html" >
< a href = "../develop/advance-developer.html" >
< b > 7.8.< / b >
高级开发指南
< / a >
< / li >
< li class = "chapter " data-level = "7.9" data-path = "../develop/contribute.html" >
< a href = "../develop/contribute.html" >
< b > 7.9.< / b >
社区贡献
< / a >
< / li >
< li class = "chapter " data-level = "7.10" data-path = "../develop/minikube.html" >
< a href = "../develop/minikube.html" >
< b > 7.10.< / b >
Minikube
< / a >
< / li >
< li class = "header" > CNCF（ ） < / li >
< li class = "chapter " data-level = "8.1" data-path = "../cloud-native/cncf.html" >
< a href = "../cloud-native/cncf.html" >
< b > 8.1.< / b >
CNCF - 云原生计算基金会简介
< / a >
< / li >
< li class = "chapter " data-level = "8.2" data-path = "../cloud-native/cncf-charter.html" >
< a href = "../cloud-native/cncf-charter.html" >
< b > 8.2.< / b >
CNCF 章程
< / a >
< / li >
< li class = "chapter " data-level = "8.3" data-path = "../cloud-native/cncf-sig.html" >
< a href = "../cloud-native/cncf-sig.html" >
< b > 8.3.< / b >
CNCF 特别兴趣小组（ ）
< / a >
< / li >
< li class = "chapter " data-level = "8.4" data-path = "../cloud-native/cncf-sandbox-criteria.html" >
< a href = "../cloud-native/cncf-sandbox-criteria.html" >
< b > 8.4.< / b >
开源项目加入 CNCF Sandbox 的要求
< / a >
< / li >
< li class = "chapter " data-level = "8.5" data-path = "../cloud-native/cncf-project-governing.html" >
< a href = "../cloud-native/cncf-project-governing.html" >
< b > 8.5.< / b >
CNCF 中的项目治理
< / a >
< / li >
< li class = "chapter " data-level = "8.6" data-path = "../cloud-native/cncf-ambassador.html" >
< a href = "../cloud-native/cncf-ambassador.html" >
< b > 8.6.< / b >
CNCF Ambassador
< / a >
< / li >
< li class = "header" > 附录< / li >
< li class = "chapter " data-level = "9.1" data-path = "../appendix/" >
< a href = "../appendix/" >
< b > 9.1.< / b >
附录说明
< / a >
< / li >
< li class = "chapter " data-level = "9.2" data-path = "../appendix/debug-kubernetes-services.html" >
< a href = "../appendix/debug-kubernetes-services.html" >
< b > 9.2.< / b >
Kubernetes 中的应用故障排查
< / a >
< / li >
< li class = "chapter " data-level = "9.3" data-path = "../appendix/material-share.html" >
< a href = "../appendix/material-share.html" >
< b > 9.3.< / b >
Kubernetes 相关资讯和情报链接
< / a >
< / li >
< li class = "chapter " data-level = "9.4" data-path = "../appendix/docker-best-practice.html" >
< a href = "../appendix/docker-best-practice.html" >
< b > 9.4.< / b >
Docker 最佳实践
< / a >
< / li >
< li class = "chapter " data-level = "9.5" data-path = "../appendix/tricks.html" >
< a href = "../appendix/tricks.html" >
< b > 9.5.< / b >
使用技巧
< / a >
< / li >
< li class = "chapter " data-level = "9.6" data-path = "../appendix/issues.html" >
< a href = "../appendix/issues.html" >
< b > 9.6.< / b >
问题记录
< / a >
< / li >
< li class = "chapter " data-level = "9.7" data-path = "../appendix/kubernetes-changelog.html" >
< a href = "../appendix/kubernetes-changelog.html" >
< b > 9.7.< / b >
Kubernetes 版本更新日志
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "9.7.1" data-path = "../appendix/kubernetes-1.7-changelog.html" >
< a href = "../appendix/kubernetes-1.7-changelog.html" >
< b > 9.7.1.< / b >
Kubernetes1.7 更新日志
< / a >
< / li >
< li class = "chapter " data-level = "9.7.2" data-path = "../appendix/kubernetes-1.8-changelog.html" >
< a href = "../appendix/kubernetes-1.8-changelog.html" >
< b > 9.7.2.< / b >
Kubernetes1.8 更新日志
< / a >
< / li >
< li class = "chapter " data-level = "9.7.3" data-path = "../appendix/kubernetes-1.9-changelog.html" >
< a href = "../appendix/kubernetes-1.9-changelog.html" >
< b > 9.7.3.< / b >
Kubernetes1.9 更新日志
< / a >
< / li >
< li class = "chapter " data-level = "9.7.4" data-path = "../appendix/kubernetes-1.10-changelog.html" >
< a href = "../appendix/kubernetes-1.10-changelog.html" >
< b > 9.7.4.< / b >
Kubernetes1.10 更新日志
< / a >
< / li >
< li class = "chapter " data-level = "9.7.5" data-path = "../appendix/kubernetes-1.11-changelog.html" >
< a href = "../appendix/kubernetes-1.11-changelog.html" >
< b > 9.7.5.< / b >
Kubernetes1.11 更新日志
< / a >
< / li >
< li class = "chapter " data-level = "9.7.6" data-path = "../appendix/kubernetes-1.12-changelog.html" >
< a href = "../appendix/kubernetes-1.12-changelog.html" >
< b > 9.7.6.< / b >
Kubernetes1.12 更新日志
< / a >
< / li >
< li class = "chapter " data-level = "9.7.7" data-path = "../appendix/kubernetes-1.13-changelog.html" >
< a href = "../appendix/kubernetes-1.13-changelog.html" >
< b > 9.7.7.< / b >
Kubernetes1.13 更新日志
< / a >
< / li >
< li class = "chapter " data-level = "9.7.8" data-path = "../appendix/kubernetes-1.14-changelog.html" >
< a href = "../appendix/kubernetes-1.14-changelog.html" >
< b > 9.7.8.< / b >
Kubernetes1.14 更新日志
< / a >
< / li >
< li class = "chapter " data-level = "9.7.9" data-path = "../appendix/kubernetes-1.15-changelog.html" >
< a href = "../appendix/kubernetes-1.15-changelog.html" >
< b > 9.7.9.< / b >
Kubernetes1.15 更新日志
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "9.8" data-path = "../appendix/summary-and-outlook.html" >
< a href = "../appendix/summary-and-outlook.html" >
< b > 9.8.< / b >
Kubernetes 及云原生年度总结及展望
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "9.8.1" data-path = "../appendix/kubernetes-and-cloud-native-summary-in-2017-and-outlook-for-2018.html" >
< a href = "../appendix/kubernetes-and-cloud-native-summary-in-2017-and-outlook-for-2018.html" >
< b > 9.8.1.< / b >
Kubernetes 与云原生 2017 年年终总结及 2018 年展望
< / a >
< / li >
< li class = "chapter " data-level = "9.8.2" data-path = "../appendix/kubernetes-and-cloud-native-summary-in-2018-and-outlook-for-2019.html" >
< a href = "../appendix/kubernetes-and-cloud-native-summary-in-2018-and-outlook-for-2019.html" >
< b > 9.8.2.< / b >
Kubernetes 与云原生 2018 年年终总结及 2019 年展望
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "9.9" data-path = "../appendix/cncf-annual-report.html" >
< a href = "../appendix/cncf-annual-report.html" >
< b > 9.9.< / b >
CNCF 年度报告解读
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "9.9.1" data-path = "../appendix/cncf-annual-report-2018.html" >
< a href = "../appendix/cncf-annual-report-2018.html" >
< b > 9.9.1.< / b >
CNCF 2018 年年度报告解读
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "9.10" data-path = "../appendix/about-kcsp.html" >
< a href = "../appendix/about-kcsp.html" >
< b > 9.10.< / b >
Kubernetes 认证服务提供商（ ）
< / a >
< / li >
< li class = "chapter " data-level = "9.11" data-path = "../appendix/about-cka-candidate.html" >
< a href = "../appendix/about-cka-candidate.html" >
< b > 9.11.< / b >
认证 Kubernetes 管理员（ ）
< / a >
< / li >
< li class = "divider" > < / li >
< li >
< a href = "https://www.gitbook.com" target = "blank" class = "gitbook-link" >
本书使用 GitBook 发布
< / a >
< / li >
< / ul >
< / nav >
< / div >
< div class = "book-body" >
< div class = "body-inner" >
< div class = "book-header" role = "navigation" >
<!-- Title -->
< h1 >
< i class = "fa fa-circle-o-notch fa-spin" > < / i >
< a href = ".." > 管理容器的计算资源< / a >
< / h1 >
< / div >
< div class = "page-wrapper" tabindex = "-1" role = "main" >
< div class = "page-inner" >
< div class = "search-plus" id = "book-search-results" >
< div class = "search-noresults" >
< section class = "normal markdown-section" >
< h1 id = "管理容器的计算资源" > 管 理 容 器 的 计 算 资 源 < / h1 >
< p > 当 您 定 义 < a href = "http://kubernetes.io/docs/user-guide/pods" target = "_blank" > Pod< / a > 的 时 候 可 以 选 择 为 每 个 容 器 指 定 需 要 的 CPU 和 内 存 （ RAM） 大 小 。 当 为 容 器 指 定 了 资 源 请 求 后 ， 调 度 器 就 能 够 更 好 的 判 断 出 将 容 器 调 度 到 哪 个 节 点 上 。 如 果 您 还 为 容 器 指 定 了 资 源 限 制 ， 节 点 上 的 资 源 就 可 以 按 照 指 定 的 方 式 做 竞 争 。 < / p >
< h2 id = "资源类型" > 资 源 类 型 < / h2 >
< p > < em > CPU< / em > 和 < em > memory< / em > 都 是 < em > 资 源 类 型 < / em > 。 资 源 类 型 具 有 基 本 单 位 。 CPU 的 单 位 是 core， memory 的 单 位 是 byte。 < / p >
< p > CPU和 内 存 统 称 为 < em > 计 算 资 源 < / em > ， 也 可 以 称 为 < em > 资 源 < / em > 。 计 算 资 源 的 数 量 是 可 以 被 请 求 、 分 配 和 消 耗 的 可 测 量 的 。 它 们 与 < a href = "https://kubernetes.io/docs/api/" target = "_blank" > API 资 源 < / a > 不 同 。 API 资 源 （ 如 Pod 和 < a href = "https://kubernetes.io/docs/user-guide/services" target = "_blank" > Service< / a > ） 是 可 通 过 Kubernetes API server 读 取 和 修 改 的 对 象 。 < / p >
< h2 id = "pod-和-容器的资源请求和限制" > Pod 和 容 器 的 资 源 请 求 和 限 制 < / h2 >
< p > Pod 中 的 每 个 容 器 都 可 以 指 定 以 下 的 一 个 或 者 多 个 值 ： < / p >
< ul >
< li > < code > spec.containers[].resources.limits.cpu< / code > < / li >
< li > < code > spec.containers[].resources.limits.memory< / code > < / li >
< li > < code > spec.containers[].resources.requests.cpu< / code > < / li >
< li > < code > spec.containers[].resources.requests.memory< / code > < / li >
< / ul >
< p > 尽 管 只 能 在 个 别 容 器 上 指 定 请 求 和 限 制 ， 但 是 我 们 可 以 方 便 地 计 算 出 Pod 资 源 请 求 和 限 制 。 特 定 资 源 类 型 的 Pod 资 源 请 求 /限 制 是 Pod 中 每 个 容 器 的 该 类 型 的 资 源 请 求 /限 制 的 总 和 。 < / p >
< h2 id = "cpu-的含义" > CPU 的 含 义 < / h2 >
< p > CPU 资 源 的 限 制 和 请 求 以 < em > cpu< / em > 为 单 位 。 < / p >
< p > Kubernetes 中 的 一 个 cpu 等 于 ： < / p >
< ul >
< li > 1 AWS vCPU< / li >
< li > 1 GCP Core< / li >
< li > 1 Azure vCore< / li >
< li > 1 < em > Hyperthread< / em > 在 带 有 超 线 程 的 裸 机 Intel 处 理 器 上 < / li >
< / ul >
< p > 允 许 浮 点 数 请 求 。 具 有 < code > spec.containers[].resources.requests.cpu< / code > 为 0.5 的 容 器 保 证 了 一 半 CPU 要 求 1 CPU的 一 半 。 表 达 式 < code > 0.1< / code > 等 价 于 表 达 式 < code > 100m< / code > ， 可 以 看 作 “ 100 millicpu” 。 有 些 人 说 成 是 “ 一 百 毫 cpu” ， 其 实 说 的 是 同 样 的 事 情 。 具 有 小 数 点 （ 如 < code > 0.1< / code > ） 的 请 求 由 API 转 换 为 < code > 100m< / code > ， 精 度 不 超 过 < code > 1m< / code > 。 因 此 ， 可 能 会 优 先 选 择 < code > 100m< / code > 的 形 式 。 < / p >
< p > CPU 总 是 要 用 绝 对 数 量 ， 不 可 以 使 用 相 对 数 量 ； 0.1 的 CPU 在 单 核 、 双 核 、 48核 的 机 器 中 的 意 义 是 一 样 的 。 < / p >
< h2 id = "内存的含义" > 内 存 的 含 义 < / h2 >
< p > 内 存 的 限 制 和 请 求 以 字 节 为 单 位 。 您 可 以 使 用 以 下 后 缀 之 一 作 为 平 均 整 数 或 定 点 整 数 表 示 内 存 ： E， P， T， G， M， K。 您 还 可 以 使 用 两 个 字 母 的 等 效 的 幂 数 ： Ei， Pi， Ti ， Gi， Mi， Ki。 例 如 ， 以 下 代 表 大 致 相 同 的 值 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > < span class = "token number" > 128974848< / span > , 129e6, 129M, 123Mi
< / code > < / pre >
< p > 下 面 是 个 例 子 。 < / p >
< p > 以 下 Pod 有 两 个 容 器 。 每 个 容 器 的 请 求 为 0.25 cpu 和 64MiB（ 2< sup > 26< / sup > 字 节 ） 内 存 ， 每 个 容 器 的 限 制 为 0.5 cpu 和 128MiB 内 存 。 您 可 以 说 该 Pod 请 求 0.5 cpu 和 128 MiB 的 内 存 ， 限 制 为 1 cpu 和 256MiB 的 内 存 。 < / p >
< pre class = "language-" > < code class = "lang-yaml" > < span class = "token key atrule" > apiVersion< / span > < span class = "token punctuation" > :< / span > v1
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > Pod
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > frontend
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > containers< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > db
< span class = "token key atrule" > image< / span > < span class = "token punctuation" > :< / span > mysql
< span class = "token key atrule" > resources< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > requests< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > memory< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " 64Mi" < / span >
< span class = "token key atrule" > cpu< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " 250m" < / span >
< span class = "token key atrule" > limits< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > memory< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " 128Mi" < / span >
< span class = "token key atrule" > cpu< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " 500m" < / span >
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > wp
< span class = "token key atrule" > image< / span > < span class = "token punctuation" > :< / span > wordpress
< span class = "token key atrule" > resources< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > requests< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > memory< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " 64Mi" < / span >
< span class = "token key atrule" > cpu< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " 250m" < / span >
< span class = "token key atrule" > limits< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > memory< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " 128Mi" < / span >
< span class = "token key atrule" > cpu< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " 500m" < / span >
< / code > < / pre >
< h2 id = "具有资源请求的-pod-如何调度" > 具 有 资 源 请 求 的 Pod 如 何 调 度 < / h2 >
< p > 当 您 创 建 一 个 Pod 时 ， Kubernetes 调 度 程 序 将 为 Pod 选 择 一 个 节 点 。 每 个 节 点 具 有 每 种 资 源 类 型 的 最 大 容 量 ： 可 为 Pod 提 供 的 CPU 和 内 存 量 。 调 度 程 序 确 保 对 于 每 种 资 源 类 型 ， 调 度 的 容 器 的 资 源 请 求 的 总 和 小 于 节 点 的 容 量 。 请 注 意 ， 尽 管 节 点 上 的 实 际 内 存 或 CPU 资 源 使 用 量 非 常 低 ， 但 如 果 容 量 检 查 失 败 ， 则 调 度 程 序 仍 然 拒 绝 在 该 节 点 上 放 置 Pod。 当 资 源 使 用 量 稍 后 增 加 时 ， 例 如 在 请 求 率 的 每 日 峰 值 期 间 ， 这 可 以 防 止 节 点 上 的 资 源 短 缺 。 < / p >
< h2 id = "具有资源限制的-pod-如何运行" > 具 有 资 源 限 制 的 Pod 如 何 运 行 < / h2 >
< p > 当 kubelet 启 动 一 个 Pod 的 容 器 时 ， 它 会 将 CPU 和 内 存 限 制 传 递 到 容 器 运 行 时 。 < / p >
< p > 当 使 用 Docker 时 ： < / p >
< ul >
< li > < code > spec.containers[].resources.requests.cpu< / code > 的 值 将 转 换 成 millicore 值 ， 这 是 个 浮 点 数 ， 并 乘 以 1024， 这 个 数 字 中 的 较 大 者 或 2用 作 < code > docker run< / code > 命 令 中 的 < a href = "https://docs.docker.com/engine/reference/run/#/cpu-share-constraint" target = "_blank" > < code > --cpu-shares< / code > < / a > 标 志 的 值 。 < / li >
< li > < code > spec.containers[].resources.limits.cpu< / code > 被 转 换 成 millicore 值 。 被 乘 以 100000 然 后 除 以 1000。 这 个 数 字 用 作 < code > docker run< / code > 命 令 中 的 < a href = "https://docs.docker.com/engine/reference/run/#/cpu-quota-constraint" target = "_blank" > < code > --cpu-quota< / code > < / a > 标 志 的 值 。 [< code > --cpu-quota< / code > ] 标 志 被 设 置 成 了 100000， 表 示 测 量 配 额 使 用 的 默 认 100ms 周 期 。 如 果 [< code > --cpu-cfs-quota< / code > ] 标 志 设 置 为 true， 则 kubelet 会 强 制 执 行 cpu 限 制 。 从 Kubernetes 1.2 版 本 起 ， 此 标 志 默 认 为 true。 < / li >
< li > < code > spec.containers[].resources.limits.memory< / code > 被 转 换 为 整 型 ， 作 为 < code > docker run< / code > 命 令 中 的 < a href = "https://docs.docker.com/engine/reference/run/#/user-memory-constraints" target = "_blank" > < code > --memory< / code > < / a > 标 志 的 值 。 < / li >
< / ul >
< p > 如 果 容 器 超 过 其 内 存 限 制 ， 则 可 能 会 被 终 止 。 如 果 可 重 新 启 动 ， 则 与 所 有 其 他 类 型 的 运 行 时 故 障 一 样 ， kubelet 将 重 新 启 动 它 。 < / p >
< p > 如 果 一 个 容 器 超 过 其 内 存 请 求 ， 那 么 当 节 点 内 存 不 足 时 ， 它 的 Pod 可 能 被 逐 出 。 < / p >
< p > 容 器 可 能 被 允 许 也 可 能 不 被 允 许 超 过 其 CPU 限 制 时 间 。 但 是 ， 由 于 CPU 使 用 率 过 高 ， 不 会 被 杀 死 。 < / p >
< p > 要 确 定 容 器 是 否 由 于 资 源 限 制 而 无 法 安 排 或 被 杀 死 ， 请 参 阅 疑 难 解 答 ]部 分 。 < / p >
< h2 id = "监控计算资源使用" > 监 控 计 算 资 源 使 用 < / h2 >
< p > Pod 的 资 源 使 用 情 况 被 报 告 为 Pod 状 态 的 一 部 分 。 < / p >
< p > 如 果 为 集 群 配 置 了 可 选 监 控 ， 则 可 以 从 监 控 系 统 检 索 Pod 资 源 的 使 用 情 况 。 < / p >
< h2 id = "疑难解答" > 疑 难 解 答 < / h2 >
< h3 id = "我的-pod-处于-pending-状态且事件信息显示-failedscheduling" > 我 的 Pod 处 于 pending 状 态 且 事 件 信 息 显 示 failedScheduling< / h3 >
< p > 如 果 调 度 器 找 不 到 任 何 该 Pod 可 以 匹 配 的 节 点 ， 则 该 Pod 将 保 持 不 可 调 度 状 态 ， 直 到 找 到 一 个 可 以 被 调 度 到 的 位 置 。 每 当 调 度 器 找 不 到 Pod 可 以 调 度 的 地 方 时 ， 会 产 生 一 个 事 件 ， 如 下 所 示 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > $ kubectl describe pod frontend < span class = "token operator" > |< / span > < span class = "token function" > grep< / span > -A < span class = "token number" > 3< / span > Events
Events:
FirstSeen LastSeen Count From Subobject PathReason Message
36s 5s < span class = "token number" > 6< / span > < span class = "token punctuation" > {< / span > scheduler < span class = "token punctuation" > }< / span > FailedScheduling Failed < span class = "token keyword" > for< / span > reason PodExceedsFreeCPU and possibly others
< / code > < / pre >
< p > 在 上 述 示 例 中 ， 由 于 节 点 上 的 CPU 资 源 不 足 ， 名 为 “ frontend” 的 Pod 将 无 法 调 度 。 由 于 内 存 不 足 （ PodExceedsFreeMemory） ， 类 似 的 错 误 消 息 也 可 能 会 导 致 失 败 。 一 般 来 说 ， 如 果 有 这 种 类 型 的 消 息 而 处 于 pending 状 态 ， 您 可 以 尝 试 如 下 几 件 事 情 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > $ kubectl describe nodes e2e-test-minion-group-4lw4
Name: e2e-test-minion-group-4lw4
< span class = "token punctuation" > [< / span > < span class = "token punctuation" > ..< / span > . lines removed < span class = "token keyword" > for< / span > clarity < span class = "token punctuation" > ..< / span > .< span class = "token punctuation" > ]< / span >
Capacity:
alpha.kubernetes.io/nvidia-gpu: < span class = "token number" > 0< / span >
cpu: < span class = "token number" > 2< / span >
memory: 7679792Ki
pods: < span class = "token number" > 110< / span >
Allocatable:
alpha.kubernetes.io/nvidia-gpu: < span class = "token number" > 0< / span >
cpu: 1800m
memory: 7474992Ki
pods: < span class = "token number" > 110< / span >
< span class = "token punctuation" > [< / span > < span class = "token punctuation" > ..< / span > . lines removed < span class = "token keyword" > for< / span > clarity < span class = "token punctuation" > ..< / span > .< span class = "token punctuation" > ]< / span >
Non-terminated Pods: < span class = "token punctuation" > (< / span > < span class = "token number" > 5< / span > < span class = "token keyword" > in< / span > total< span class = "token punctuation" > )< / span >
Namespace Name CPU Requests CPU Limits Memory Requests Memory Limits
--------- ---- ------------ ---------- --------------- -------------
kube-system fluentd-gcp-v1.38-28bv1 100m < span class = "token punctuation" > (< / span > < span class = "token number" > 5< / span > %< span class = "token punctuation" > )< / span > < span class = "token number" > 0< / span > < span class = "token punctuation" > (< / span > < span class = "token number" > 0< / span > %< span class = "token punctuation" > )< / span > 200Mi < span class = "token punctuation" > (< / span > < span class = "token number" > 2< / span > %< span class = "token punctuation" > )< / span > 200Mi < span class = "token punctuation" > (< / span > < span class = "token number" > 2< / span > %< span class = "token punctuation" > )< / span >
kube-system kube-dns-3297075139-61lj3 260m < span class = "token punctuation" > (< / span > < span class = "token number" > 13< / span > %< span class = "token punctuation" > )< / span > < span class = "token number" > 0< / span > < span class = "token punctuation" > (< / span > < span class = "token number" > 0< / span > %< span class = "token punctuation" > )< / span > 100Mi < span class = "token punctuation" > (< / span > < span class = "token number" > 1< / span > %< span class = "token punctuation" > )< / span > 170Mi < span class = "token punctuation" > (< / span > < span class = "token number" > 2< / span > %< span class = "token punctuation" > )< / span >
kube-system kube-proxy-e2e-test-< span class = "token punctuation" > ..< / span > . 100m < span class = "token punctuation" > (< / span > < span class = "token number" > 5< / span > %< span class = "token punctuation" > )< / span > < span class = "token number" > 0< / span > < span class = "token punctuation" > (< / span > < span class = "token number" > 0< / span > %< span class = "token punctuation" > )< / span > < span class = "token number" > 0< / span > < span class = "token punctuation" > (< / span > < span class = "token number" > 0< / span > %< span class = "token punctuation" > )< / span > < span class = "token number" > 0< / span > < span class = "token punctuation" > (< / span > < span class = "token number" > 0< / span > %< span class = "token punctuation" > )< / span >
kube-system monitoring-influxdb-grafana-v4-z1m12 200m < span class = "token punctuation" > (< / span > < span class = "token number" > 10< / span > %< span class = "token punctuation" > )< / span > 200m < span class = "token punctuation" > (< / span > < span class = "token number" > 10< / span > %< span class = "token punctuation" > )< / span > 600Mi < span class = "token punctuation" > (< / span > < span class = "token number" > 8< / span > %< span class = "token punctuation" > )< / span > 600Mi < span class = "token punctuation" > (< / span > < span class = "token number" > 8< / span > %< span class = "token punctuation" > )< / span >
kube-system node-problem-detector-v0.1-fj7m3 20m < span class = "token punctuation" > (< / span > < span class = "token number" > 1< / span > %< span class = "token punctuation" > )< / span > 200m < span class = "token punctuation" > (< / span > < span class = "token number" > 10< / span > %< span class = "token punctuation" > )< / span > 20Mi < span class = "token punctuation" > (< / span > < span class = "token number" > 0< / span > %< span class = "token punctuation" > )< / span > 100Mi < span class = "token punctuation" > (< / span > < span class = "token number" > 1< / span > %< span class = "token punctuation" > )< / span >
Allocated resources:
< span class = "token punctuation" > (< / span > Total limits may be over < span class = "token number" > 100< / span > percent, i.e., overcommitted.< span class = "token punctuation" > )< / span >
CPU Requests CPU Limits Memory Requests Memory Limits
------------ ---------- --------------- -------------
680m < span class = "token punctuation" > (< / span > < span class = "token number" > 34< / span > %< span class = "token punctuation" > )< / span > 400m < span class = "token punctuation" > (< / span > < span class = "token number" > 20< / span > %< span class = "token punctuation" > )< / span > 920Mi < span class = "token punctuation" > (< / span > < span class = "token number" > 12< / span > %< span class = "token punctuation" > )< / span > 1070Mi < span class = "token punctuation" > (< / span > < span class = "token number" > 14< / span > %< span class = "token punctuation" > )< / span >
< / code > < / pre >
< h2 id = "我的容器被终结了" > 我 的 容 器 被 终 结 了 < / h2 >
< p > 您 的 容 器 可 能 因 为 资 源 枯 竭 而 被 终 结 了 。 要 查 看 容 器 是 否 因 为 遇 到 资 源 限 制 而 被 杀 死 ， 请 在 相 关 的 Pod 上 调 用 < code > kubectl describe pod< / code > ： < / p >
< pre class = "language-" > < code class = "lang-bash" > < span class = "token punctuation" > [< / span > < span class = "token number" > 12< / span > :54:41< span class = "token punctuation" > ]< / span > $ kubectl describe pod simmemleak-hra99
Name: simmemleak-hra99
Namespace: default
Image< span class = "token punctuation" > (< / span > s< span class = "token punctuation" > )< / span > : saadali/simmemleak
Node: kubernetes-node-tf0f/10.240.216.66
Labels: < span class = "token assign-left variable" > name< / span > < span class = "token operator" > =< / span > simmemleak
Status: Running
Reason:
Message:
IP: < span class = "token number" > 10.244< / span > .2.75
Replication Controllers: simmemleak < span class = "token punctuation" > (< / span > < span class = "token number" > 1< / span > /1 replicas created< span class = "token punctuation" > )< / span >
Containers:
simmemleak:
Image: saadali/simmemleak
Limits:
cpu: 100m
memory: 50Mi
State: Running
Started: Tue, 07 Jul < span class = "token number" > 2015< / span > < span class = "token number" > 12< / span > :54:41 -0700
Last Termination State: Terminated
Exit Code: < span class = "token number" > 1< / span >
Started: Fri, 07 Jul < span class = "token number" > 2015< / span > < span class = "token number" > 12< / span > :54:30 -0700
Finished: Fri, 07 Jul < span class = "token number" > 2015< / span > < span class = "token number" > 12< / span > :54:33 -0700
Ready: False
Restart Count: < span class = "token number" > 5< / span >
Conditions:
Type Status
Ready False
Events:
FirstSeen LastSeen Count From SubobjectPath Reason Message
Tue, 07 Jul < span class = "token number" > 2015< / span > < span class = "token number" > 12< / span > :53:51 -0700 Tue, 07 Jul < span class = "token number" > 2015< / span > < span class = "token number" > 12< / span > :53:51 -0700 < span class = "token number" > 1< / span > < span class = "token punctuation" > {< / span > scheduler < span class = "token punctuation" > }< / span > scheduled Successfully assigned simmemleak-hra99 to kubernetes-node-tf0f
Tue, 07 Jul < span class = "token number" > 2015< / span > < span class = "token number" > 12< / span > :53:51 -0700 Tue, 07 Jul < span class = "token number" > 2015< / span > < span class = "token number" > 12< / span > :53:51 -0700 < span class = "token number" > 1< / span > < span class = "token punctuation" > {< / span > kubelet kubernetes-node-tf0f< span class = "token punctuation" > }< / span > implicitly required container POD pulled Pod container image < span class = "token string" > " gcr.io/google_containers/pause:0.8.0" < / span > already present on machine
Tue, 07 Jul < span class = "token number" > 2015< / span > < span class = "token number" > 12< / span > :53:51 -0700 Tue, 07 Jul < span class = "token number" > 2015< / span > < span class = "token number" > 12< / span > :53:51 -0700 < span class = "token number" > 1< / span > < span class = "token punctuation" > {< / span > kubelet kubernetes-node-tf0f< span class = "token punctuation" > }< / span > implicitly required container POD created Created with docker < span class = "token function" > id< / span > 6a41280f516d
Tue, 07 Jul < span class = "token number" > 2015< / span > < span class = "token number" > 12< / span > :53:51 -0700 Tue, 07 Jul < span class = "token number" > 2015< / span > < span class = "token number" > 12< / span > :53:51 -0700 < span class = "token number" > 1< / span > < span class = "token punctuation" > {< / span > kubelet kubernetes-node-tf0f< span class = "token punctuation" > }< / span > implicitly required container POD started Started with docker < span class = "token function" > id< / span > 6a41280f516d
Tue, 07 Jul < span class = "token number" > 2015< / span > < span class = "token number" > 12< / span > :53:51 -0700 Tue, 07 Jul < span class = "token number" > 2015< / span > < span class = "token number" > 12< / span > :53:51 -0700 < span class = "token number" > 1< / span > < span class = "token punctuation" > {< / span > kubelet kubernetes-node-tf0f< span class = "token punctuation" > }< / span > spec.containers< span class = "token punctuation" > {< / span > simmemleak< span class = "token punctuation" > }< / span > created Created with docker < span class = "token function" > id< / span > 87348f12526a
< / code > < / pre >
< p > 在 上 面 的 例 子 中 ， < code > Restart Count: 5< / code > 意 味 着 Pod 中 的 < code > simmemleak< / code > 容 器 被 终 止 并 重 启 了 五 次 。 < / p >
< p > 您 可 以 使 用 < code > kubectl get pod< / code > 命 令 加 上 < code > -o go-template=...< / code > 选 项 来 获 取 之 前 终 止 容 器 的 状 态 。 < / p >
< pre class = "language-" > < code class = "lang-bash" > < span class = "token punctuation" > [< / span > < span class = "token number" > 13< / span > :59:01< span class = "token punctuation" > ]< / span > $ kubectl get pod -o go-template< span class = "token operator" > =< / span > < span class = "token string" > ' {{range.status.containerStatuses}}{{" Container Name: " }}{{.name}}{{" < span class = "token entity" title = "\r" > \r< / span > < span class = "token entity" title = "\n" > \n< / span > LastState: " }}{{.lastState}}{{end}}' < / span > simmemleak-60xbc
Container Name: simmemleak
LastState: map< span class = "token punctuation" > [< / span > terminated:map< span class = "token punctuation" > [< / span > exitCode:137 reason:OOM Killed startedAt:2015-07-07T20:58:43Z finishedAt:2015-07-07T20:58:43Z containerID:docker://0e4095bba1feccdfe7ef9fb6ebffe972b4b14285d5acdec6f0d3ae8a22fad8b2< span class = "token punctuation" > ]< / span > < span class = "token punctuation" > ]< / span >
< / code > < / pre >
< p > 您 可 以 看 到 容 器 因 为 < code > reason:OOM killed< / code > 被 终 止 ， < code > OOM< / code > 表 示 Out Of Memory。 < / p >
< h2 id = "不透明整型资源（alpha功能）" > 不 透 明 整 型 资 源 （ Alpha功 能 ） < / h2 >
< p > Kubernetes 1.5 版 本 中 引 入 不 透 明 整 型 资 源 。 不 透 明 的 整 数 资 源 允 许 集 群 运 维 人 员 发 布 新 的 节 点 级 资 源 ， 否 则 系 统 将 不 了 解 这 些 资 源 。 < / p >
< p > 用 户 可 以 在 Pod 的 spec 中 消 费 这 些 资 源 ， 就 像 CPU 和 内 存 一 样 。 调 度 器 负 责 资 源 计 量 ， 以 便 在 不 超 过 可 用 量 的 同 时 分 配 给 Pod。 < / p >
< p > < strong > 注 意 ： < / strong > 不 透 明 整 型 资 源 在 kubernetes 1.5 中 还 是 Alpha 版 本 。 只 实 现 了 资 源 计 量 ， 节 点 级 别 的 隔 离 还 处 于 积 极 的 开 发 阶 段 。 < / p >
< p > 不 透 明 整 型 资 源 是 以 < code > pod.alpha.kubernetes.io/opaque-int-resource-< / code > 为 前 缀 的 资 源 。 API server 将 限 制 这 些 资 源 的 数 量 为 整 数 。 < em > 有 效 < / em > 数 量 的 例 子 有 < code > 3< / code > 、 < code > 3000m< / code > 和 < code > 3Ki< / code > 。 < em > 无 效 < / em > 数 量 的 例 子 有 < code > 0.5< / code > 和 < code > 1500m< / code > 。 < / p >
< p > 申 请 使 用 不 透 明 整 型 资 源 需 要 两 步 。 首 先 ， 集 群 运 维 人 员 必 须 在 一 个 或 多 个 节 点 上 通 告 每 个 节 点 不 透 明 的 资 源 。 然 后 ， 用 户 必 须 在 Pod 中 请 求 不 透 明 资 源 。 < / p >
< p > 要 发 布 新 的 不 透 明 整 型 资 源 ， 集 群 运 维 人 员 应 向 API server 提 交 < code > PATCH< / code > HTTP请 求 ， 以 指 定 集 群 中 节 点 的 < code > status.capacity< / code > 的 可 用 数 量 。 在 此 操 作 之 后 ， 节 点 的 < code > status.capacity< / code > 将 包 括 一 个 新 的 资 源 。 < code > status.allocatable< / code > 字 段 由 kubelet 异 步 地 使 用 新 资 源 自 动 更 新 。 请 注 意 ， 由 于 调 度 器 在 评 估 Pod 适 应 度 时 使 用 节 点 < code > status.allocatable< / code > 值 ， 所 以 在 使 用 新 资 源 修 补 节 点 容 量 和 请 求 在 该 节 点 上 调 度 资 源 的 第 一 个 pod 之 间 可 能 会 有 短 暂 的 延 迟 。 < / p >
< p > < strong > 示 例 < / strong > < / p >
< p > 这 是 一 个 HTTP 请 求 ， master 节 点 是 k8s-master， 在 k8s-node-1 节 点 上 通 告 5 个 “ foo” 资 源 。 < / p >
< pre class = "language-" > < code class = "lang-http" > < span class = "token request-line" > < span class = "token property" > PATCH< / span > /api/v1/nodes/k8s-node-1/status HTTP/1.1< / span >
< span class = "token header-name keyword" > Accept:< / span > application/json
< span class = "token header-name keyword" > Content-Type:< / span > application/json-patch+json
< span class = "token header-name keyword" > Host:< / span > k8s-master:8080< span class = "token application-json" >
< span class = "token punctuation" > [< / span >
< span class = "token punctuation" > {< / span >
< span class = "token property" > " op" < / span > < span class = "token operator" > :< / span > < span class = "token string" > " add" < / span > < span class = "token punctuation" > ,< / span >
< span class = "token property" > " path" < / span > < span class = "token operator" > :< / span > < span class = "token string" > " /status/capacity/pod.alpha.kubernetes.io~1opaque-int-resource-foo" < / span > < span class = "token punctuation" > ,< / span >
< span class = "token property" > " value" < / span > < span class = "token operator" > :< / span > < span class = "token string" > " 5" < / span >
< span class = "token punctuation" > }< / span >
< span class = "token punctuation" > ]< / span >
< / span > < / code > < / pre >
< pre class = "language-" > < code class = "lang-bash" > < span class = "token function" > curl< / span > --header < span class = "token string" > " Content-Type: application/json-patch+json" < / span > < span class = "token punctuation" > \< / span >
--request PATCH < span class = "token punctuation" > \< / span >
--data < span class = "token string" > ' [{" op" : " add" , " path" : " /status/capacity/pod.alpha.kubernetes.io~1opaque-int-resource-foo" , " value" : " 5" }]' < / span > < span class = "token punctuation" > \< / span >
http://k8s-master:8080/api/v1/nodes/k8s-node-1/status
< / code > < / pre >
< p > < strong > 注 意 ： < / strong > 在 前 面 的 请 求 中 ， < code > ~1< / code > 是 patch 路 径 中 < code > /< / code > 字 符 的 编 码 。 JSON-Patch 中 的 操 作 路 径 值 被 解 释 为 JSON-Pointer。 更 多 详 细 信 息 请 参 阅 < a href = "https://tools.ietf.org/html/rfc6901#section-3" target = "_blank" > IETF RFC 6901, section 3< / a > 。 < / p >
< pre class = "language-" > < code class = "lang-yaml" > < span class = "token key atrule" > apiVersion< / span > < span class = "token punctuation" > :< / span > v1
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > Pod
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > my< span class = "token punctuation" > -< / span > pod
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > containers< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > my< span class = "token punctuation" > -< / span > container
< span class = "token key atrule" > image< / span > < span class = "token punctuation" > :< / span > myimage
< span class = "token key atrule" > resources< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > requests< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > cpu< / span > < span class = "token punctuation" > :< / span > < span class = "token number" > 2< / span >
< span class = "token key atrule" > pod.alpha.kubernetes.io/opaque-int-resource-foo< / span > < span class = "token punctuation" > :< / span > < span class = "token number" > 1< / span >
< / code > < / pre >
< h2 id = "计划改进" > 计 划 改 进 < / h2 >
< p > 在 kubernetes 1.5 版 本 中 仅 允 许 在 容 器 上 指 定 资 源 量 。 计 划 改 进 对 所 有 容 器 在 Pod 中 共 享 资 源 的 计 量 ， 如 < a href = "https://kubernetes.io/docs/concepts/storage/volumes/#emptydir" target = "_blank" > emptyDir volume< / a > 。 < / p >
< p > 在 kubernetes 1.5 版 本 中 仅 支 持 容 器 对 CPU 和 内 存 的 申 请 和 限 制 。 计 划 增 加 新 的 资 源 类 型 ， 包 括 节 点 磁 盘 空 间 资 源 和 一 个 可 支 持 自 定 义 资 源 类 型 的 框 架 。 < / p >
< p > Kubernetes 通 过 支 持 通 过 多 级 别 的 < a href = "http://issue.k8s.io/168" target = "_blank" > 服 务 质 量 < / a > 来 支 持 资 源 的 过 度 使 用 。 < / p >
< p > 在 kubernetes 1.5 版 本 中 ， 一 个 CPU 单 位 在 不 同 的 云 提 供 商 和 同 一 云 提 供 商 的 不 同 机 器 类 型 中 的 意 味 都 不 同 。 例 如 ， 在 AWS 上 ， 节 点 的 容 量 报 告 为 < a href = "http://aws.amazon.com/ec2/faqs/" target = "_blank" > ECU< / a > ， 而 在 GCE 中 报 告 为 逻 辑 内 核 。 我 们 计 划 修 改 cpu 资 源 的 定 义 ， 以 便 在 不 同 的 提 供 商 和 平 台 之 间 保 持 一 致 。 < / p >
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