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< title > Persistent Volume( 持久化卷) · 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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2020-10-10 20:02:03 +08:00
< a href = "https://jimmysong.io/awesome-cloud-native" target = "_blank" class = "custom-link" > 云原生开源项目大全< / a >
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< / li >
< li >
< a href = "https://cloudnative.to" target = "_blank" class = "custom-link" > 云原生社区< / a >
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< li class = "divider" > < / li >
< li class = "header" > 前言< / li >
< li class = "chapter " data-level = "1.1" data-path = "../" >
< a href = "../" >
< b > 1.1.< / b >
序言
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< / li >
< 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( Cloud Native) 的定义
< / 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 >
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< li class = "chapter " data-level = "2.3" data-path = "../cloud-native/quick-start.html" >
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< a href = "../cloud-native/quick-start.html" >
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< b > 2.3.< / b >
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云原生新手入门指南
< / a >
< / li >
< li class = "chapter " data-level = "2.4" data-path = "../cloud-native/play-with-kubernetes.html" >
< a href = "../cloud-native/play-with-kubernetes.html" >
< b > 2.4.< / b >
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Play with Kubernetes
< / a >
< / li >
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< li class = "chapter " data-level = "2.5" data-path = "../cloud-native/cloud-native-local-quick-start.html" >
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< a href = "../cloud-native/cloud-native-local-quick-start.html" >
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< b > 2.5.< / b >
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快速部署一个云原生本地实验环境
< / a >
< / li >
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< li class = "chapter " data-level = "2.6" data-path = "../cloud-native/setup-kubernetes-with-rancher-and-aliyun.html" >
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< a href = "../cloud-native/setup-kubernetes-with-rancher-and-aliyun.html" >
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< b > 2.6.< / b >
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使用 Rancher 在阿里云上部署 Kubenretes 集群
< / a >
< / li >
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< li class = "chapter " data-level = "2.7" data-path = "../cloud-native/kubernetes-and-cloud-native-app-overview.html" >
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< a href = "../cloud-native/kubernetes-and-cloud-native-app-overview.html" >
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< b > 2.7.< / b >
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Kubernetes 与云原生应用概览
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< / li >
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< li class = "chapter " data-level = "2.8" data-path = "../cloud-native/from-kubernetes-to-cloud-native.html" >
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< a href = "../cloud-native/from-kubernetes-to-cloud-native.html" >
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< b > 2.8.< / b >
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云原生应用之路 —— 从 Kubernetes 到 Cloud Native
< / a >
< / li >
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< li class = "chapter " data-level = "2.9" data-path = "../cloud-native/define-cloud-native-app.html" >
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< a href = "../cloud-native/define-cloud-native-app.html" >
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< b > 2.9.< / b >
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定义云原生应用
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< / a >
< ul class = "articles" >
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< li class = "chapter " data-level = "2.9.1" data-path = "../cloud-native/oam.html" >
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< a href = "../cloud-native/oam.html" >
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< b > 2.9.1.< / b >
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OAM
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< / a >
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< ul class = "articles" >
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< li class = "chapter " data-level = "2.9.1.1" data-path = "../cloud-native/workload.html" >
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< a href = "../cloud-native/workload.html" >
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< b > 2.9.1.1.< / b >
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Workload
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< / a >
< / li >
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< li class = "chapter " data-level = "2.9.1.2" data-path = "../cloud-native/component.html" >
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< a href = "../cloud-native/component.html" >
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< b > 2.9.1.2.< / b >
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Component
< / a >
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< / li >
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< li class = "chapter " data-level = "2.9.1.3" data-path = "../cloud-native/trait.html" >
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< a href = "../cloud-native/trait.html" >
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< b > 2.9.1.3.< / b >
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Trait
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< / a >
< / li >
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< li class = "chapter " data-level = "2.9.1.4" data-path = "../cloud-native/application-scope.html" >
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< a href = "../cloud-native/application-scope.html" >
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< b > 2.9.1.4.< / b >
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Application Scope
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< / a >
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< / li >
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< li class = "chapter " data-level = "2.9.1.5" data-path = "../cloud-native/application-configuration.html" >
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< a href = "../cloud-native/application-configuration.html" >
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< b > 2.9.1.5.< / b >
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Application Configuration
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< / li >
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< / ul >
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< / li >
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< li class = "chapter " data-level = "2.9.2" data-path = "../cloud-native/crossplane.html" >
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< a href = "../cloud-native/crossplane.html" >
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< b > 2.9.2.< / b >
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Crossplane
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< / a >
< / li >
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< / ul >
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< / li >
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< li class = "chapter " data-level = "2.10" data-path = "../cloud-native/cloud-native-programming-languages.html" >
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< a href = "../cloud-native/cloud-native-programming-languages.html" >
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< b > 2.10.< / b >
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云原生编程语言
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< / a >
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< ul class = "articles" >
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< li class = "chapter " data-level = "2.10.1" data-path = "../cloud-native/cloud-native-programming-language-ballerina.html" >
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< a href = "../cloud-native/cloud-native-programming-language-ballerina.html" >
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< b > 2.10.1.< / b >
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云原生编程语言 Ballerina
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< / a >
< / li >
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< li class = "chapter " data-level = "2.10.2" data-path = "../cloud-native/cloud-native-programming-language-pulumi.html" >
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< a href = "../cloud-native/cloud-native-programming-language-pulumi.html" >
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< b > 2.10.2.< / b >
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云原生编程语言 Pulumi
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< / a >
< / li >
< / ul >
< / li >
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< li class = "chapter " data-level = "2.11" data-path = "../cloud-native/the-future-of-cloud-native.html" >
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< a href = "../cloud-native/the-future-of-cloud-native.html" >
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< b > 2.11.< / b >
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云原生的未来
< / a >
< / li >
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< li class = "header" > 概念与原理< / li >
< li class = "chapter " data-level = "3.1" data-path = "./" >
< a href = "./" >
< b > 3.1.< / b >
Kubernetes 架构
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.1.1" data-path = "concepts.html" >
< a href = "concepts.html" >
< b > 3.1.1.< / b >
设计理念
< / a >
< / li >
< li class = "chapter " data-level = "3.1.2" data-path = "etcd.html" >
< a href = "etcd.html" >
< b > 3.1.2.< / b >
Etcd 解析
< / a >
< / li >
< li class = "chapter " data-level = "3.1.3" data-path = "open-interfaces.html" >
< a href = "open-interfaces.html" >
< b > 3.1.3.< / b >
开放接口
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.1.3.1" data-path = "cri.html" >
< a href = "cri.html" >
< b > 3.1.3.1.< / b >
CRI - Container Runtime Interface( 容器运行时接口)
< / a >
< / li >
< li class = "chapter " data-level = "3.1.3.2" data-path = "cni.html" >
< a href = "cni.html" >
< b > 3.1.3.2.< / b >
CNI - Container Network Interface( 容器网络接口)
< / a >
< / li >
< li class = "chapter " data-level = "3.1.3.3" data-path = "csi.html" >
< a href = "csi.html" >
< b > 3.1.3.3.< / b >
CSI - Container Storage Interface( 容器存储接口)
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< / ul >
< / li >
< li class = "chapter " data-level = "3.2" data-path = "networking.html" >
< a href = "networking.html" >
< b > 3.2.< / b >
Kubernetes 中的网络
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.2.1" data-path = "flannel.html" >
< a href = "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 = "calico.html" >
< a href = "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 = "cilium.html" >
< a href = "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
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.2.3.1" data-path = "cilium-concepts.html" >
< a href = "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 = "objects.html" >
< a href = "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 = "pod-state-and-lifecycle.html" >
< a href = "pod-state-and-lifecycle.html" >
< b > 3.4.< / b >
Pod 状态与生命周期管理
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< ul class = "articles" >
< li class = "chapter " data-level = "3.4.1" data-path = "pod-overview.html" >
< a href = "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 = "pod.html" >
< a href = "pod.html" >
< b > 3.4.2.< / b >
Pod 解析
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< / li >
< li class = "chapter " data-level = "3.4.3" data-path = "init-containers.html" >
< a href = "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 = "pause-container.html" >
< a href = "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 = "pod-security-policy.html" >
< a href = "pod-security-policy.html" >
< b > 3.4.5.< / b >
Pod 安全策略
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< / li >
< li class = "chapter " data-level = "3.4.6" data-path = "pod-lifecycle.html" >
< a href = "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 = "pod-hook.html" >
< a href = "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 = "pod-preset.html" >
< a href = "pod-preset.html" >
< b > 3.4.8.< / b >
Pod Preset
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< li class = "chapter " data-level = "3.4.9" data-path = "pod-disruption-budget.html" >
< a href = "pod-disruption-budget.html" >
< b > 3.4.9.< / b >
Pod 中断与 PDB( Pod 中断预算)
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< li class = "chapter " data-level = "3.5" data-path = "cluster.html" >
< a href = "cluster.html" >
< b > 3.5.< / b >
集群资源管理
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< a href = "node.html" >
< b > 3.5.1.< / b >
Node
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< li class = "chapter " data-level = "3.5.2" data-path = "namespace.html" >
< a href = "namespace.html" >
< b > 3.5.2.< / b >
Namespace
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< li class = "chapter " data-level = "3.5.3" data-path = "label.html" >
< a href = "label.html" >
< b > 3.5.3.< / b >
Label
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< a href = "annotation.html" >
< b > 3.5.4.< / b >
Annotation
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< li class = "chapter " data-level = "3.5.5" data-path = "taint-and-toleration.html" >
< a href = "taint-and-toleration.html" >
< b > 3.5.5.< / b >
Taint 和 Toleration( 污点和容忍)
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< / li >
< li class = "chapter " data-level = "3.5.6" data-path = "garbage-collection.html" >
< a href = "garbage-collection.html" >
< b > 3.5.6.< / b >
垃圾收集
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< li class = "chapter " data-level = "3.6" data-path = "controllers.html" >
< a href = "controllers.html" >
< b > 3.6.< / b >
控制器
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< li class = "chapter " data-level = "3.6.1" data-path = "deployment.html" >
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< b > 3.6.1.< / b >
Deployment
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< / li >
< li class = "chapter " data-level = "3.6.2" data-path = "statefulset.html" >
< a href = "statefulset.html" >
< b > 3.6.2.< / b >
StatefulSet
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< / li >
< li class = "chapter " data-level = "3.6.3" data-path = "daemonset.html" >
< a href = "daemonset.html" >
< b > 3.6.3.< / b >
DaemonSet
< / a >
< / li >
< li class = "chapter " data-level = "3.6.4" data-path = "replicaset.html" >
< a href = "replicaset.html" >
< b > 3.6.4.< / b >
ReplicationController 和 ReplicaSet
< / a >
< / li >
< li class = "chapter " data-level = "3.6.5" data-path = "job.html" >
< a href = "job.html" >
< b > 3.6.5.< / b >
Job
< / a >
< / li >
< li class = "chapter " data-level = "3.6.6" data-path = "cronjob.html" >
< a href = "cronjob.html" >
< b > 3.6.6.< / b >
CronJob
< / a >
< / li >
< li class = "chapter " data-level = "3.6.7" data-path = "horizontal-pod-autoscaling.html" >
< a href = "horizontal-pod-autoscaling.html" >
< b > 3.6.7.< / b >
Horizontal Pod Autoscaling
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.6.7.1" data-path = "custom-metrics-hpa.html" >
< a href = "custom-metrics-hpa.html" >
< b > 3.6.7.1.< / b >
自定义指标 HPA
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "3.6.8" data-path = "admission-controller.html" >
< a href = "admission-controller.html" >
< b > 3.6.8.< / b >
准入控制器( Admission Controller)
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "3.7" data-path = "service-discovery.html" >
< a href = "service-discovery.html" >
< b > 3.7.< / b >
服务发现
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.7.1" data-path = "service.html" >
< a href = "service.html" >
< b > 3.7.1.< / b >
Service
< / a >
< / li >
< li class = "chapter " data-level = "3.7.2" data-path = "ingress.html" >
< a href = "ingress.html" >
< b > 3.7.2.< / b >
Ingress
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.7.2.1" data-path = "traefik-ingress-controller.html" >
< a href = "traefik-ingress-controller.html" >
< b > 3.7.2.1.< / b >
Traefik Ingress Controller
< / a >
< / li >
< / ul >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "3.8" data-path = "authentication-and-permission.html" >
< a href = "authentication-and-permission.html" >
< b > 3.8.< / b >
身份与权限控制
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.8.1" data-path = "serviceaccount.html" >
< a href = "serviceaccount.html" >
< b > 3.8.1.< / b >
ServiceAccount
< / a >
< / li >
< li class = "chapter " data-level = "3.8.2" data-path = "rbac.html" >
< a href = "rbac.html" >
< b > 3.8.2.< / b >
RBAC—— 基于角色的访问控制
< / a >
< / li >
< li class = "chapter " data-level = "3.8.3" data-path = "network-policy.html" >
< a href = "network-policy.html" >
< b > 3.8.3.< / b >
NetworkPolicy
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "3.9" data-path = "storage.html" >
< a href = "storage.html" >
< b > 3.9.< / b >
存储
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.9.1" data-path = "secret.html" >
< a href = "secret.html" >
< b > 3.9.1.< / b >
Secret
< / a >
< / li >
< li class = "chapter " data-level = "3.9.2" data-path = "configmap.html" >
< a href = "configmap.html" >
< b > 3.9.2.< / b >
ConfigMap
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.9.2.1" data-path = "configmap-hot-update.html" >
< a href = "configmap-hot-update.html" >
< b > 3.9.2.1.< / b >
ConfigMap 的热更新
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "3.9.3" data-path = "volume.html" >
< a href = "volume.html" >
< b > 3.9.3.< / b >
Volume
< / a >
< / li >
< li class = "chapter active" data-level = "3.9.4" data-path = "persistent-volume.html" >
< a href = "persistent-volume.html" >
< b > 3.9.4.< / b >
Persistent Volume( 持久化卷)
< / a >
< / li >
< li class = "chapter " data-level = "3.9.5" data-path = "storageclass.html" >
< a href = "storageclass.html" >
< b > 3.9.5.< / b >
Storage Class
< / a >
< / li >
< li class = "chapter " data-level = "3.9.6" data-path = "local-persistent-storage.html" >
< a href = "local-persistent-storage.html" >
< b > 3.9.6.< / b >
本地持久化存储
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "3.10" data-path = "extension.html" >
< a href = "extension.html" >
< b > 3.10.< / b >
集群扩展
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.10.1" data-path = "custom-resource.html" >
< a href = "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 = "crd.html" >
< a href = "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 = "aggregated-api-server.html" >
< a href = "aggregated-api-server.html" >
< b > 3.10.3.< / b >
Aggregated API Server
< / a >
< / li >
< li class = "chapter " data-level = "3.10.4" data-path = "apiservice.html" >
< a href = "apiservice.html" >
< b > 3.10.4.< / b >
APIService
< / a >
< / li >
< li class = "chapter " data-level = "3.10.5" data-path = "service-catalog.html" >
< a href = "service-catalog.html" >
< b > 3.10.5.< / b >
Service Catalog
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "3.11" data-path = "scheduling.html" >
< a href = "scheduling.html" >
< b > 3.11.< / b >
资源调度
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.11.1" data-path = "qos.html" >
< a href = "qos.html" >
< b > 3.11.1.< / b >
QoS( 服务质量等级)
< / 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 >
2020-07-17 11:08:23 +08:00
TLS Bootstrap
2020-06-19 14:52:56 +08:00
< / 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 >
2020-06-29 12:32:43 +08:00
Lens - Kubernetes IDE/桌面客户端
2020-06-19 14:52:56 +08:00
< / 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 = "../practice/" >
< a href = "../practice/" >
< b > 5.1.< / b >
最佳实践概览
< / a >
< / li >
< li class = "chapter " data-level = "5.2" data-path = "../practice/install-kubernetes-on-centos.html" >
< a href = "../practice/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 = "../practice/create-tls-and-secret-key.html" >
< a href = "../practice/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 = "../practice/create-kubeconfig.html" >
< a href = "../practice/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 = "../practice/etcd-cluster-installation.html" >
< a href = "../practice/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 = "../practice/kubectl-installation.html" >
< a href = "../practice/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 = "../practice/master-installation.html" >
< a href = "../practice/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 = "../practice/flannel-installation.html" >
< a href = "../practice/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 = "../practice/node-installation.html" >
< a href = "../practice/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 = "../practice/kubedns-addon-installation.html" >
< a href = "../practice/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 = "../practice/dashboard-addon-installation.html" >
< a href = "../practice/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 = "../practice/heapster-addon-installation.html" >
< a href = "../practice/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 = "../practice/efk-addon-installation.html" >
< a href = "../practice/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 = "../practice/install-kubernetes-with-kubeadm.html" >
< a href = "../practice/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 = "../practice/install-kubernetes-on-ubuntu-server-16.04-with-kubeadm.html" >
< a href = "../practice/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 = "../practice/service-discovery-and-loadbalancing.html" >
< a href = "../practice/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 = "../practice/traefik-ingress-installation.html" >
< a href = "../practice/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 = "../practice/distributed-load-test.html" >
< a href = "../practice/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 = "../practice/network-and-cluster-perfermance-test.html" >
< a href = "../practice/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 = "../practice/edge-node-configuration.html" >
< a href = "../practice/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 = "../practice/nginx-ingress-installation.html" >
< a href = "../practice/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 = "../practice/dns-installation.html" >
< a href = "../practice/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 = "../practice/configuring-dns.html" >
< a href = "../practice/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 = "../practice/coredns.html" >
< a href = "../practice/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 = "../practice/operation.html" >
< a href = "../practice/operation.html" >
< b > 5.5.< / b >
运维管理
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.5.1" data-path = "../practice/master-ha.html" >
< a href = "../practice/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 = "../practice/service-rolling-update.html" >
< a href = "../practice/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 = "../practice/app-log-collection.html" >
< a href = "../practice/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 = "../practice/configuration-best-practice.html" >
< a href = "../practice/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 = "../practice/monitor.html" >
< a href = "../practice/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 = "../practice/data-persistence-problem.html" >
< a href = "../practice/data-persistence-problem.html" >
< b > 5.5.6.< / b >
数据持久化问题
< / a >
< / li >
< li class = "chapter " data-level = "5.5.7" data-path = "../practice/manage-compute-resources-container.html" >
< a href = "../practice/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 = "../practice/federation.html" >
< a href = "../practice/federation.html" >
< b > 5.5.8.< / b >
集群联邦
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "5.6" data-path = "../practice/storage.html" >
< a href = "../practice/storage.html" >
< b > 5.6.< / b >
存储管理
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.6.1" data-path = "../practice/glusterfs.html" >
< a href = "../practice/glusterfs.html" >
< b > 5.6.1.< / b >
GlusterFS
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.6.1.1" data-path = "../practice/using-glusterfs-for-persistent-storage.html" >
< a href = "../practice/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 = "../practice/using-heketi-gluster-for-persistent-storage.html" >
< a href = "../practice/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 = "../practice/storage-for-containers-using-glusterfs-with-openshift.html" >
< a href = "../practice/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 = "../practice/glusterd-2.0.html" >
< a href = "../practice/glusterd-2.0.html" >
< b > 5.6.2.< / b >
GlusterD-2.0
< / a >
< / li >
< li class = "chapter " data-level = "5.6.3" data-path = "../practice/ceph.html" >
< a href = "../practice/ceph.html" >
< b > 5.6.3.< / b >
Ceph
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.6.3.1" data-path = "../practice/ceph-helm-install-guide-zh.html" >
< a href = "../practice/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 = "../practice/using-ceph-for-persistent-storage.html" >
< a href = "../practice/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 = "../practice/rbd-provisioner.html" >
< a href = "../practice/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 = "../practice/openebs.html" >
< a href = "../practice/openebs.html" >
< b > 5.6.4.< / b >
OpenEBS
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.6.4.1" data-path = "../practice/using-openebs-for-persistent-storage.html" >
< a href = "../practice/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 = "../practice/rook.html" >
< a href = "../practice/rook.html" >
< b > 5.6.5.< / b >
Rook
< / a >
< / li >
< li class = "chapter " data-level = "5.6.6" data-path = "../practice/nfs.html" >
< a href = "../practice/nfs.html" >
< b > 5.6.6.< / b >
NFS
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.6.6.1" data-path = "../practice/using-nfs-for-persistent-storage.html" >
< a href = "../practice/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 = "../practice/monitoring.html" >
< a href = "../practice/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 = "../practice/heapster.html" >
< a href = "../practice/heapster.html" >
< b > 5.7.1.< / b >
Heapster
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.7.1.1" data-path = "../practice/using-heapster-to-get-object-metrics.html" >
< a href = "../practice/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 = "../practice/prometheus.html" >
< a href = "../practice/prometheus.html" >
< b > 5.7.2.< / b >
Prometheus
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "5.7.2.1" data-path = "../practice/using-prometheus-to-monitor-kuberentes-cluster.html" >
< a href = "../practice/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 = "../practice/promql.html" >
< a href = "../practice/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 = "../practice/vistio-visualize-your-istio-mesh.html" >
< a href = "../practice/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 = "../practice/distributed-tracing.html" >
< a href = "../practice/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 = "../practice/opentracing.html" >
< a href = "../practice/opentracing.html" >
< b > 5.8.1.< / b >
OpenTracing
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "5.9" data-path = "../practice/services-management-tool.html" >
< a href = "../practice/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 = "../practice/helm.html" >
< a href = "../practice/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 = "../practice/create-private-charts-repo.html" >
< a href = "../practice/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 = "../practice/ci-cd.html" >
< a href = "../practice/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 = "../practice/jenkins-ci-cd.html" >
< a href = "../practice/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 = "../practice/drone-ci-cd.html" >
< a href = "../practice/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 = "../practice/update-and-upgrade.html" >
< a href = "../practice/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 = "../practice/manually-upgrade.html" >
< a href = "../practice/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 = "../practice/dashboard-upgrade.html" >
< a href = "../practice/dashboard-upgrade.html" >
< b > 5.11.2.< / b >
升级 dashboard
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "5.12" data-path = "../practice/controller-extended.html" >
< a href = "../practice/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 = "../practice/openkruise.html" >
< a href = "../practice/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 = "../practice/in-place-update.html" >
< a href = "../practice/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 >
2020-11-18 17:21:45 +08:00
< / li >
< li class = "chapter " data-level = "6.3.2.7" data-path = "../usecases/how-to-integrate-istio-with-vm.html" >
< a href = "../usecases/how-to-integrate-istio-with-vm.html" >
< b > 6.3.2.7.< / b >
Istio 如何支持虚拟机
< / a >
2020-06-19 14:52:56 +08:00
< / 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( 函数即服务)
< / 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 >
2020-06-24 16:47:22 +08:00
< li class = "chapter " data-level = "6.6" data-path = "../usecases/edge-computing.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/edge-computing.html" >
2020-06-24 16:47:22 +08:00
< b > 6.6.< / b >
2020-06-19 14:52:56 +08:00
边缘计算
< / a >
< / li >
2020-06-24 16:47:22 +08:00
< li class = "chapter " data-level = "6.7" data-path = "../usecases/ai.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/ai.html" >
2020-06-24 16:47:22 +08:00
< b > 6.7.< / b >
2020-06-19 14:52:56 +08:00
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( 云原生计算基金会) < / 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( SIG) 说明
< / 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 >
2020-08-27 23:26:28 +08:00
< / li >
< li class = "chapter " data-level = "9.7.10" data-path = "../appendix/kubernetes-1.16-changelog.html" >
< a href = "../appendix/kubernetes-1.16-changelog.html" >
< b > 9.7.10.< / b >
Kubernetes1.16 更新日志
< / a >
< / li >
< li class = "chapter " data-level = "9.7.11" data-path = "../appendix/kubernetes-1.17-changelog.html" >
< a href = "../appendix/kubernetes-1.17-changelog.html" >
< b > 9.7.11.< / b >
Kubernetes1.17 更新日志
< / a >
2020-06-19 14:52:56 +08:00
< / 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( KCSP) 说明
< / 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( CKA) 说明
< / 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 = ".." > Persistent Volume( 持久化卷) < / 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 = "persistent-volume(持久化卷)" > Persistent Volume( 持 久 化 卷 ) < / h1 >
< p > 本 文 档 介 绍 了 Kubernetes 中 < code > PersistentVolume< / code > 的 当 前 状 态 。 建 议 您 在 阅 读 本 文 档 前 先 熟 悉 < a href = "https://kubernetes.io/docs/concepts/storage/volumes/" target = "_blank" > volume< / a > 。 < / p >
< h2 id = "介绍" > 介 绍 < / h2 >
< p > 对 于 管 理 计 算 资 源 来 说 , 管 理 存 储 资 源 明 显 是 另 一 个 问 题 。 < code > PersistentVolume< / code > 子 系 统 为 用 户 和 管 理 员 提 供 了 一 个 API, 该 API 将 如 何 提 供 存 储 的 细 节 抽 象 了 出 来 。 为 此 , 我 们 引 入 两 个 新 的 API 资 源 : < code > PersistentVolume< / code > 和 < code > PersistentVolumeClaim< / code > 。 < / p >
< p > < code > PersistentVolume< / code > ( PV) 是 由 管 理 员 设 置 的 存 储 , 它 是 群 集 的 一 部 分 。 就 像 节 点 是 集 群 中 的 资 源 一 样 , PV 也 是 集 群 中 的 资 源 。 PV 是 Volume 之 类 的 卷 插 件 , 但 具 有 独 立 于 使 用 PV 的 Pod 的 生 命 周 期 。 此 API 对 象 包 含 存 储 实 现 的 细 节 , 即 NFS、 iSCSI 或 特 定 于 云 供 应 商 的 存 储 系 统 。 < / p >
< p > < code > PersistentVolumeClaim< / code > ( PVC) 是 用 户 存 储 的 请 求 。 它 与 Pod 相 似 。 Pod 消 耗 节 点 资 源 , PVC 消 耗 PV 资 源 。 Pod 可 以 请 求 特 定 级 别 的 资 源 ( CPU 和 内 存 ) 。 声 明 可 以 请 求 特 定 的 大 小 和 访 问 模 式 ( 例 如 , 可 以 以 读 /写 一 次 或 只 读 多 次 模 式 挂 载 ) 。 < / p >
< p > 虽 然 < code > PersistentVolumeClaims< / code > 允 许 用 户 使 用 抽 象 存 储 资 源 , 但 用 户 需 要 具 有 不 同 性 质 ( 例 如 性 能 ) 的 < code > PersistentVolume< / code > 来 解 决 不 同 的 问 题 。 集 群 管 理 员 需 要 能 够 提 供 各 种 各 样 的 < code > PersistentVolume< / code > , 这 些 < code > PersistentVolume< / code > 的 大 小 和 访 问 模 式 可 以 各 有 不 同 , 但 不 需 要 向 用 户 公 开 实 现 这 些 卷 的 细 节 。 对 于 这 些 需 求 , < code > StorageClass< / code > 资 源 可 以 实 现 。 < / p >
< p > 请 参 阅 < a href = "https://kubernetes.io/docs/tasks/configure-pod-container/configure-persistent-volume-storage/" target = "_blank" > 工 作 示 例 的 详 细 过 程 < / a > 。 < / p >
< h2 id = "卷和声明的生命周期" > 卷 和 声 明 的 生 命 周 期 < / h2 >
< p > PV 属 于 集 群 中 的 资 源 。 PVC 是 对 这 些 资 源 的 请 求 , 也 作 为 对 资 源 的 请 求 的 检 查 。 PV 和 PVC 之 间 的 相 互 作 用 遵 循 这 样 的 生 命 周 期 : < / p >
< h3 id = "配置(provision)" > 配 置 ( Provision) < / h3 >
< p > 有 两 种 方 式 来 配 置 PV: 静 态 或 动 态 。 < / p >
< h4 id = "静态" > 静 态 < / h4 >
< p > 集 群 管 理 员 创 建 一 些 PV。 它 们 带 有 可 供 群 集 用 户 使 用 的 实 际 存 储 的 细 节 。 它 们 存 在 于 Kubernetes API 中 , 可 用 于 消 费 。 < / p >
< h4 id = "动态" > 动 态 < / h4 >
< p > 根 据 < code > StorageClasses< / code > , 当 管 理 员 创 建 的 静 态 PV 都 不 匹 配 用 户 的 < code > PersistentVolumeClaim< / code > 时 , 集 群 可 能 会 尝 试 动 态 地 为 PVC 创 建 卷 。 < / p >
< h3 id = "绑定" > 绑 定 < / h3 >
< p > 在 动 态 配 置 的 情 况 下 , 用 户 创 建 或 已 经 创 建 了 具 有 特 定 存 储 量 的 < code > PersistentVolumeClaim< / code > 以 及 某 些 访 问 模 式 。 master 中 的 控 制 环 路 监 视 新 的 PVC, 寻 找 匹 配 的 PV( 如 果 可 能 ) , 并 将 它 们 绑 定 在 一 起 。 如 果 为 新 的 PVC 动 态 调 配 PV, 则 该 环 路 将 始 终 将 该 PV 绑 定 到 PVC。 否 则 , 用 户 总 会 得 到 他 们 所 请 求 的 存 储 , 但 是 容 量 可 能 超 出 要 求 的 数 量 。 一 旦 PV 和 PVC 绑 定 后 , < code > PersistentVolumeClaim< / code > 绑 定 是 排 他 性 的 , 不 管 它 们 是 如 何 绑 定 的 。 PVC 跟 PV 绑 定 是 一 对 一 的 映 射 。 < / p >
< p > 如 果 没 有 匹 配 的 卷 , 声 明 将 无 限 期 地 保 持 未 绑 定 状 态 。 随 着 匹 配 卷 的 可 用 , 声 明 将 被 绑 定 。 例 如 , 配 置 了 许 多 50Gi PV的 集 群 将 不 会 匹 配 请 求 100Gi 的 PVC。 将 100Gi PV 添 加 到 群 集 时 , 可 以 绑 定 PVC。 < / p >
< h3 id = "使用" > 使 用 < / h3 >
< p > Pod 使 用 声 明 作 为 卷 。 集 群 检 查 声 明 以 查 找 绑 定 的 卷 并 为 集 群 挂 载 该 卷 。 对 于 支 持 多 种 访 问 模 式 的 卷 , 用 户 指 定 在 使 用 声 明 作 为 容 器 中 的 卷 时 所 需 的 模 式 。 < / p >
< p > 用 户 进 行 了 声 明 , 并 且 该 声 明 是 绑 定 的 , 则 只 要 用 户 需 要 , 绑 定 的 PV 就 属 于 该 用 户 。 用 户 通 过 在 Pod 的 volume 配 置 中 包 含 < code > persistentVolumeClaim< / code > 来 调 度 Pod 并 访 问 用 户 声 明 的 PV。 < / p >
< h3 id = "持久化卷声明的保护" > 持 久 化 卷 声 明 的 保 护 < / h3 >
< p > PVC 保 护 的 目 的 是 确 保 由 pod 正 在 使 用 的 PVC 不 会 从 系 统 中 移 除 , 因 为 如 果 被 移 除 的 话 可 能 会 导 致 数 据 丢 失 。 < / p >
< p > 注 意 : 当 pod 状 态 为 < code > Pending< / code > 并 且 pod 已 经 分 配 给 节 点 或 pod 为 < code > Running< / code > 状 态 时 , PVC 处 于 活 动 状 态 。 < / p >
< p > 当 启 用 PVC 保 护 alpha 功 能 时 , 如 果 用 户 删 除 了 一 个 pod 正 在 使 用 的 PVC, 则 该 PVC 不 会 被 立 即 删 除 。 PVC 的 删 除 将 被 推 迟 , 直 到 PVC 不 再 被 任 何 pod 使 用 。 < / p >
< p > 您 可 以 看 到 , 当 PVC 的 状 态 为 < code > Teminatiing< / code > 时 , PVC 受 到 保 护 , < code > Finalizers< / code > 列 表 中 包 含 < code > kubernetes.io/pvc-protection< / code > : < / p >
< pre class = "language-" > < code class = "lang-bash" > kubectl described pvc hostpath
Name: hostpath
Namespace: default
StorageClass: example-hostpath
Status: Terminating
Volume:
Labels: < span class = "token operator" > < < / span > none< span class = "token operator" > > < / span >
Annotations: volume.beta.kubernetes.io/storage-class< span class = "token operator" > =< / span > example-hostpath
volume.beta.kubernetes.io/storage-provisioner< span class = "token operator" > =< / span > example.com/hostpath
Finalizers: < span class = "token punctuation" > [< / span > kubernetes.io/pvc-protection< span class = "token punctuation" > ]< / span >
< span class = "token punctuation" > ..< / span > .
< / code > < / pre >
< h3 id = "回收" > 回 收 < / h3 >
< p > 用 户 用 完 volume 后 , 可 以 从 允 许 回 收 资 源 的 API 中 删 除 PVC 对 象 。 < code > PersistentVolume< / code > 的 回 收 策 略 告 诉 集 群 在 存 储 卷 声 明 释 放 后 应 如 何 处 理 该 卷 。 目 前 , volume 的 处 理 策 略 有 保 留 、 回 收 或 删 除 。 < / p >
< h4 id = "保留" > 保 留 < / h4 >
< p > 保 留 回 收 策 略 允 许 手 动 回 收 资 源 。 当 < code > PersistentVolumeClaim< / code > 被 删 除 时 , < code > PersistentVolume< / code > 仍 然 存 在 , volume 被 视 为 “ 已 释 放 ” 。 但 是 由 于 前 一 个 声 明 人 的 数 据 仍 然 存 在 , 所 以 还 不 能 马 上 进 行 其 他 声 明 。 管 理 员 可 以 通 过 以 下 步 骤 手 动 回 收 卷 。 < / p >
< ol >
< li > 删 除 < code > PersistentVolume< / code > 。 在 删 除 PV 后 , 外 部 基 础 架 构 中 的 关 联 存 储 资 产 ( 如 AWS EBS、 GCE PD、 Azure Disk 或 Cinder 卷 ) 仍 然 存 在 。 < / li >
< li > 手 动 清 理 相 关 存 储 资 产 上 的 数 据 。 < / li >
< li > 手 动 删 除 关 联 的 存 储 资 产 , 或 者 如 果 要 重 新 使 用 相 同 的 存 储 资 产 , 请 使 用 存 储 资 产 定 义 创 建 新 的 < code > PersistentVolume< / code > 。 < / li >
< / ol >
< h4 id = "回收" > 回 收 < / h4 >
< p > 如 果 存 储 卷 插 件 支 持 , 回 收 策 略 会 在 volume上 执 行 基 本 擦 除 ( < code > rm -rf / thevolume / *< / code > ) , 可 被 再 次 声 明 使 用 。 < / p >
< p > 但 是 , 管 理 员 可 以 使 用 如 < a href = "https://kubernetes.io/docs/admin/kube-controller-manager/" target = "_blank" > 此 处 < / a > 所 述 的 Kubernetes controller manager 命 令 行 参 数 来 配 置 自 定 义 回 收 站 pod 模 板 。 自 定 义 回 收 站 pod 模 板 必 须 包 含 < code > volumes< / code > 规 范 , 如 下 面 的 示 例 所 示 : < / 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 > pv< span class = "token punctuation" > -< / span > recycler
< span class = "token key atrule" > namespace< / span > < span class = "token punctuation" > :< / span > default
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > restartPolicy< / span > < span class = "token punctuation" > :< / span > Never
< span class = "token key atrule" > volumes< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > vol
< span class = "token key atrule" > hostPath< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > path< / span > < span class = "token punctuation" > :< / span > /any/path/it/will/be/replaced
< 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 > pv< span class = "token punctuation" > -< / span > recycler
< span class = "token key atrule" > image< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " k8s.gcr.io/busybox" < / span >
< span class = "token key atrule" > command< / span > < span class = "token punctuation" > :< / span > < span class = "token punctuation" > [< / span > < span class = "token string" > " /bin/sh" < / span > < span class = "token punctuation" > ,< / span > < span class = "token string" > " -c" < / span > < span class = "token punctuation" > ,< / span > < span class = "token string" > " test -e /scrub & & rm -rf /scrub/..?* /scrub/.[!.]* /scrub/* & & test -z \" $(ls -A /scrub)\" || exit 1" < / span > < span class = "token punctuation" > ]< / span >
< span class = "token key atrule" > volumeMounts< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > vol
< span class = "token key atrule" > mountPath< / span > < span class = "token punctuation" > :< / span > /scrub
< / code > < / pre >
< p > 但 是 , < code > volumes< / code > 部 分 的 自 定 义 回 收 站 模 块 中 指 定 的 特 定 路 径 将 被 替 换 为 正 在 回 收 的 卷 的 特 定 路 径 。 < / p >
< h4 id = "删除" > 删 除 < / h4 >
< p > 对 于 支 持 删 除 回 收 策 略 的 卷 插 件 , 删 除 操 作 将 从 Kubernetes 中 删 除 < code > PersistentVolume< / code > 对 象 , 并 删 除 外 部 基 础 架 构 ( 如 AWS EBS、 GCE PD、 Azure Disk 或 Cinder 卷 ) 中 的 关 联 存 储 资 产 。 动 态 配 置 的 卷 继 承 其 < code > StorageClass< / code > , 默 认 为 Delete。 管 理 员 应 该 根 据 用 户 的 期 望 来 配 置 < code > StorageClass< / code > , 否 则 就 必 须 要 在 PV 创 建 后 进 行 编 辑 或 修 补 。 请 参 阅 < a href = "https://kubernetes.io/docs/tasks/administer-cluster/change-pv-reclaim-policy/" target = "_blank" > 更 改 PersistentVolume 的 回 收 策 略 < / a > 。 < / p >
< h3 id = "扩展持久化卷声明" > 扩 展 持 久 化 卷 声 明 < / h3 >
< p > Kubernetes 1.8 增 加 了 对 扩 展 持 久 化 存 储 卷 的 Alpha 支 持 。 在 v1.9 中 , 以 下 持 久 化 卷 支 持 扩 展 持 久 化 卷 声 明 : < / p >
< ul >
< li > gcePersistentDisk< / li >
< li > awsElasticBlockStore< / li >
< li > Cinder< / li >
< li > glusterfs< / li >
< li > rbd< / li >
< / ul >
< p > 管 理 员 可 以 通 过 将 < code > ExpandPersistentVolumes< / code > 特 性 门 设 置 为 true来 允 许 扩 展 持 久 卷 声 明 。 管 理 员 还 应 该 启 用 < a href = "https://kubernetes.io/docs/admin/admission-controllers/#persistentvolumeclaimresize" target = "_blank" > < code > PersistentVolumeClaimResize< / code > 准 入 控 制 插 件 < / a > 来 执 行 对 可 调 整 大 小 的 卷 的 其 他 验 证 。 < / p >
< p > 一 旦 < code > PersistentVolumeClaimResize< / code > 准 入 插 件 已 打 开 , 将 只 允 许 其 < code > allowVolumeExpansion< / code > 字 段 设 置 为 true 的 存 储 类 进 行 大 小 调 整 。 < / p >
< pre class = "language-" > < code class = "lang-yaml" > < span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > StorageClass
< span class = "token key atrule" > apiVersion< / span > < span class = "token punctuation" > :< / span > storage.k8s.io/v1
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > gluster< span class = "token punctuation" > -< / span > vol< span class = "token punctuation" > -< / span > default
< span class = "token key atrule" > provisioner< / span > < span class = "token punctuation" > :< / span > kubernetes.io/glusterfs
< span class = "token key atrule" > parameters< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > resturl< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " http://192.168.10.100:8080" < / span >
< span class = "token key atrule" > restuser< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " " < / span >
< span class = "token key atrule" > secretNamespace< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " " < / span >
< span class = "token key atrule" > secretName< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " " < / span >
< span class = "token key atrule" > allowVolumeExpansion< / span > < span class = "token punctuation" > :< / span > < span class = "token boolean important" > true< / span >
< / code > < / pre >
< p > 一 旦 功 能 门 和 前 述 准 入 插 件 打 开 后 , 用 户 就 可 以 通 过 简 单 地 编 辑 声 明 以 请 求 更 大 的 < code > PersistentVolumeClaim< / code > 卷 。 这 反 过 来 将 触 发 < code > PersistentVolume< / code > 后 端 的 卷 扩 展 。 < / p >
< p > 在 任 何 情 况 下 都 不 会 创 建 新 的 < code > PersistentVolume< / code > 来 满 足 声 明 。 Kubernetes 将 尝 试 调 整 现 有 volume 来 满 足 声 明 的 要 求 。 < / p >
< p > 对 于 扩 展 包 含 文 件 系 统 的 卷 , 只 有 在 ReadWrite 模 式 下 使 用 < code > PersistentVolumeClaim< / code > 启 动 新 的 Pod 时 , 才 会 执 行 文 件 系 统 调 整 大 小 。 换 句 话 说 , 如 果 正 在 扩 展 的 卷 在 pod 或 部 署 中 使 用 , 则 需 要 删 除 并 重 新 创 建 要 进 行 文 件 系 统 调 整 大 小 的 pod。 此 外 , 文 件 系 统 调 整 大 小 仅 适 用 于 以 下 文 件 系 统 类 型 : < / p >
< ul >
< li > XFS< / li >
< li > Ext3、 Ext4< / li >
< / ul >
< p > < strong > 注 意 < / strong > : 扩 展 EBS 卷 是 一 个 耗 时 的 操 作 。 另 外 , 每 6个 小 时 有 一 个 修 改 卷 的 配 额 。 < / p >
< h2 id = "持久化卷类型" > 持 久 化 卷 类 型 < / h2 >
< p > < code > PersistentVolume< / code > 类 型 以 插 件 形 式 实 现 。 Kubernetes 目 前 支 持 以 下 插 件 类 型 : < / p >
< ul >
< li > GCEPersistentDisk< / li >
< li > AWSElasticBlockStore< / li >
< li > AzureFile< / li >
< li > AzureDisk< / li >
< li > FC (Fibre Channel)< / li >
< li > FlexVolume< / li >
< li > Flocker< / li >
< li > NFS< / li >
< li > iSCSI< / li >
< li > RBD (Ceph Block Device)< / li >
< li > CephFS< / li >
< li > Cinder (OpenStack block storage)< / li >
< li > Glusterfs< / li >
< li > VsphereVolume< / li >
< li > Quobyte Volumes< / li >
< li > HostPath ( 仅 限 于 但 节 点 测 试 — — 不 会 以 任 何 方 式 支 持 本 地 存 储 , 也 无 法 在 多 节 点 集 群 中 工 作 ) < / li >
< li > VMware Photon< / li >
< li > Portworx Volumes< / li >
< li > ScaleIO Volumes< / li >
< li > StorageOS< / li >
< / ul >
< p > 原 始 块 支 持 仅 适 用 于 以 上 这 些 插 件 。 < / p >
< h2 id = "持久化卷" > 持 久 化 卷 < / h2 >
< p > 每 个 PV 配 置 中 都 包 含 一 个 sepc 规 格 字 段 和 一 个 status 卷 状 态 字 段 。 < / 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 > PersistentVolume
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > pv0003
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > capacity< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > storage< / span > < span class = "token punctuation" > :< / span > 5Gi
< span class = "token key atrule" > volumeMode< / span > < span class = "token punctuation" > :< / span > Filesystem
< span class = "token key atrule" > accessModes< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > ReadWriteOnce
< span class = "token key atrule" > persistentVolumeReclaimPolicy< / span > < span class = "token punctuation" > :< / span > Recycle
< span class = "token key atrule" > storageClassName< / span > < span class = "token punctuation" > :< / span > slow
< span class = "token key atrule" > mountOptions< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > hard
< span class = "token punctuation" > -< / span > nfsvers=4.1
< span class = "token key atrule" > nfs< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > path< / span > < span class = "token punctuation" > :< / span > /tmp
< span class = "token key atrule" > server< / span > < span class = "token punctuation" > :< / span > 172.17.0.2
< / code > < / pre >
< h3 id = "容量" > 容 量 < / h3 >
< p > 通 常 , PV 将 具 有 特 定 的 存 储 容 量 。 这 是 使 用 PV 的 容 量 属 性 设 置 的 。 查 看 Kubernetes < a href = "https://git.k8s.io/community/contributors/design-proposals/scheduling/resources.md" target = "_blank" > 资 源 模 型 < / a > 以 了 解 < code > capacity< / code > 预 期 。 < / p >
< p > 目 前 , 存 储 大 小 是 可 以 设 置 或 请 求 的 唯 一 资 源 。 未 来 的 属 性 可 能 包 括 IOPS、 吞 吐 量 等 。 < / p >
< h3 id = "卷模式" > 卷 模 式 < / h3 >
< p > 在 v1.9 之 前 , 所 有 卷 插 件 的 默 认 行 为 是 在 持 久 卷 上 创 建 一 个 文 件 系 统 。 在 v1.9 中 , 用 户 可 以 指 定 一 个 volumeMode, 除 了 文 件 系 统 之 外 , 它 现 在 将 支 持 原 始 块 设 备 。 volumeMode 的 有 效 值 可 以 是 “ Filesystem” 或 “ Block” 。 如 果 未 指 定 , volumeMode 将 默 认 为 “ Filesystem” 。 这 是 一 个 可 选 的 API 参 数 。 < / p >
< p > < strong > 注 意 < / strong > : 该 功 能 在 V1.9 中 是 alpha的 , 未 来 可 能 会 更 改 。 < / p >
< h3 id = "访问模式" > 访 问 模 式 < / h3 >
< p > < code > PersistentVolume< / code > 可 以 以 资 源 提 供 者 支 持 的 任 何 方 式 挂 载 到 主 机 上 。 如 下 表 所 示 , 供 应 商 具 有 不 同 的 功 能 , 每 个 PV 的 访 问 模 式 都 将 被 设 置 为 该 卷 支 持 的 特 定 模 式 。 例 如 , NFS 可 以 支 持 多 个 读 /写 客 户 端 , 但 特 定 的 NFS PV 可 能 以 只 读 方 式 导 出 到 服 务 器 上 。 每 个 PV 都 有 一 套 自 己 的 用 来 描 述 特 定 功 能 的 访 问 模 式 。 < / p >
< p > 存 储 模 式 包 括 : < / p >
< ul >
< li > ReadWriteOnce— — 该 卷 可 以 被 单 个 节 点 以 读 /写 模 式 挂 载 < / li >
< li > ReadOnlyMany— — 该 卷 可 以 被 多 个 节 点 以 只 读 模 式 挂 载 < / li >
< li > ReadWriteMany— — 该 卷 可 以 被 多 个 节 点 以 读 /写 模 式 挂 载 < / li >
< / ul >
< p > 在 命 令 行 中 , 访 问 模 式 缩 写 为 : < / p >
< ul >
< li > RWO - ReadWriteOnce< / li >
< li > ROX - ReadOnlyMany< / li >
< li > RWX - ReadWriteMany< / li >
< / ul >
< blockquote >
< p > < strong > 重 要 < / strong > ! 一 个 卷 一 次 只 能 使 用 一 种 访 问 模 式 挂 载 , 即 使 它 支 持 很 多 访 问 模 式 。 例 如 , GCEPersistentDisk 可 以 由 单 个 节 点 作 为 ReadWriteOnce 模 式 挂 载 , 或 由 多 个 节 点 以 ReadOnlyMany 模 式 挂 载 , 但 不 能 同 时 挂 载 。 < / p >
< / blockquote >
< table >
< thead >
< tr >
< th style = "text-align:left" > Volume 插 件 < / th >
< th style = "text-align:center" > ReadWriteOnce< / th >
< th style = "text-align:center" > ReadOnlyMany< / th >
< th style = "text-align:center" > ReadWriteMany< / th >
< / tr >
< / thead >
< tbody >
< tr >
< td style = "text-align:left" > AWSElasticBlockStore< / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > -< / td >
< td style = "text-align:center" > -< / td >
< / tr >
< tr >
< td style = "text-align:left" > AzureFile< / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > ✓ < / td >
< / tr >
< tr >
< td style = "text-align:left" > AzureDisk< / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > -< / td >
< td style = "text-align:center" > -< / td >
< / tr >
< tr >
< td style = "text-align:left" > CephFS< / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > ✓ < / td >
< / tr >
< tr >
< td style = "text-align:left" > Cinder< / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > -< / td >
< td style = "text-align:center" > -< / td >
< / tr >
< tr >
< td style = "text-align:left" > FC< / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > -< / td >
< / tr >
< tr >
< td style = "text-align:left" > FlexVolume< / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > -< / td >
< / tr >
< tr >
< td style = "text-align:left" > Flocker< / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > -< / td >
< td style = "text-align:center" > -< / td >
< / tr >
< tr >
< td style = "text-align:left" > GCEPersistentDisk< / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > -< / td >
< / tr >
< tr >
< td style = "text-align:left" > Glusterfs< / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > ✓ < / td >
< / tr >
< tr >
< td style = "text-align:left" > HostPath< / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > -< / td >
< td style = "text-align:center" > -< / td >
< / tr >
< tr >
< td style = "text-align:left" > iSCSI< / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > -< / td >
< / tr >
< tr >
< td style = "text-align:left" > PhotonPersistentDisk< / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > -< / td >
< td style = "text-align:center" > -< / td >
< / tr >
< tr >
< td style = "text-align:left" > Quobyte< / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > ✓ < / td >
< / tr >
< tr >
< td style = "text-align:left" > NFS< / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > ✓ < / td >
< / tr >
< tr >
< td style = "text-align:left" > RBD< / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > -< / td >
< / tr >
< tr >
< td style = "text-align:left" > VsphereVolume< / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > -< / td >
< td style = "text-align:center" > - ( 当 pod 并 列 时 有 效 ) < / td >
< / tr >
< tr >
< td style = "text-align:left" > PortworxVolume< / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > -< / td >
< td style = "text-align:center" > ✓ < / td >
< / tr >
< tr >
< td style = "text-align:left" > ScaleIO< / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > -< / td >
< / tr >
< tr >
< td style = "text-align:left" > StorageOS< / td >
< td style = "text-align:center" > ✓ < / td >
< td style = "text-align:center" > -< / td >
< td style = "text-align:center" > -< / td >
< / tr >
< / tbody >
< / table >
< h3 id = "类" > 类 < / h3 >
< p > PV 可 以 具 有 一 个 类 , 通 过 将 < code > storageClassName< / code > 属 性 设 置 为 < a href = "https://kubernetes.io/docs/concepts/storage/storage-classes/" target = "_blank" > StorageClass< / a > 的 名 称 来 指 定 该 类 。 一 个 特 定 类 别 的 PV 只 能 绑 定 到 请 求 该 类 别 的 PVC。 没 有 < code > storageClassName< / code > 的 PV 就 没 有 类 , 它 只 能 绑 定 到 不 需 要 特 定 类 的 PVC。 < / p >
< p > 过 去 , 使 用 的 是 < code > volume.beta.kubernetes.io/storage-class< / code > 注 解 而 不 是 < code > storageClassName< / code > 属 性 。 这 个 注 解 仍 然 有 效 , 但 是 将 来 的 Kubernetes 版 本 中 将 会 完 全 弃 用 它 。 < / p >
< h3 id = "回收策略" > 回 收 策 略 < / h3 >
< p > 当 前 的 回 收 策 略 包 括 : < / p >
< ul >
< li > Retain( 保 留 ) — — 手 动 回 收 < / li >
< li > Recycle( 回 收 ) — — 基 本 擦 除 ( < code > rm -rf /thevolume/*< / code > ) < / li >
< li > Delete( 删 除 ) — — 关 联 的 存 储 资 产 ( 例 如 AWS EBS、 GCE PD、 Azure Disk 和 OpenStack Cinder 卷 ) 将 被 删 除 < / li >
< / ul >
< p > 当 前 , 只 有 NFS 和 HostPath 支 持 回 收 策 略 。 AWS EBS、 GCE PD、 Azure Disk 和 Cinder 卷 支 持 删 除 策 略 。 < / p >
< h3 id = "挂载选项" > 挂 载 选 项 < / h3 >
< p > Kubernetes 管 理 员 可 以 指 定 在 节 点 上 为 挂 载 持 久 卷 指 定 挂 载 选 项 。 < / p >
< p > < strong > 注 意 < / strong > : 不 是 所 有 的 持 久 化 卷 类 型 都 支 持 挂 载 选 项 。 < / p >
< p > 以 下 卷 类 型 支 持 挂 载 选 项 : < / p >
< ul >
< li > GCEPersistentDisk< / li >
< li > AWSElasticBlockStore< / li >
< li > AzureFile< / li >
< li > AzureDisk< / li >
< li > NFS< / li >
< li > iSCSI< / li >
< li > RBD ( Ceph Block Device) < / li >
< li > CephFS< / li >
< li > Cinder ( OpenStack 卷 存 储 ) < / li >
< li > Glusterfs< / li >
< li > VsphereVolume< / li >
< li > Quobyte Volumes< / li >
< li > VMware Photon< / li >
< / ul >
< p > 挂 载 选 项 没 有 校 验 , 如 果 挂 载 选 项 无 效 则 挂 载 失 败 。 < / p >
< p > 过 去 , 使 用 < code > volume.beta.kubernetes.io/mount-options< / code > 注 解 而 不 是 < code > mountOptions< / code > 属 性 。 这 个 注 解 仍 然 有 效 , 但 在 将 来 的 Kubernetes 版 本 中 它 将 会 被 完 全 弃 用 。 < / p >
< h3 id = "状态" > 状 态 < / h3 >
< p > 卷 可 以 处 于 以 下 的 某 种 状 态 : < / p >
< ul >
< li > Available( 可 用 ) — — 一 块 空 闲 资 源 还 没 有 被 任 何 声 明 绑 定 < / li >
< li > Bound( 已 绑 定 ) — — 卷 已 经 被 声 明 绑 定 < / li >
< li > Released( 已 释 放 ) — — 声 明 被 删 除 , 但 是 资 源 还 未 被 集 群 重 新 声 明 < / li >
< li > Failed( 失 败 ) — — 该 卷 的 自 动 回 收 失 败 < / li >
< / ul >
< p > 命 令 行 会 显 示 绑 定 到 PV 的 PVC 的 名 称 。 < / p >
< h2 id = "persistentvolumeclaim" > PersistentVolumeClaim< / h2 >
< p > 每 个 PVC 中 都 包 含 一 个 spec 规 格 字 段 和 一 个 status 声 明 状 态 字 段 。 < / p >
< pre class = "language-" > < code class = "lang-yaml" > < span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > PersistentVolumeClaim
< span class = "token key atrule" > apiVersion< / span > < span class = "token punctuation" > :< / span > v1
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > myclaim
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > accessModes< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > ReadWriteOnce
< span class = "token key atrule" > volumeMode< / span > < span class = "token punctuation" > :< / span > Filesystem
< 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" > storage< / span > < span class = "token punctuation" > :< / span > 8Gi
< span class = "token key atrule" > storageClassName< / span > < span class = "token punctuation" > :< / span > slow
< span class = "token key atrule" > selector< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > matchLabels< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > release< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " stable" < / span >
< span class = "token key atrule" > matchExpressions< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > < span class = "token punctuation" > {< / span > < span class = "token key atrule" > key< / span > < span class = "token punctuation" > :< / span > environment< span class = "token punctuation" > ,< / span > < span class = "token key atrule" > operator< / span > < span class = "token punctuation" > :< / span > In< span class = "token punctuation" > ,< / span > < span class = "token key atrule" > values< / span > < span class = "token punctuation" > :< / span > < span class = "token punctuation" > [< / span > dev< span class = "token punctuation" > ]< / span > < span class = "token punctuation" > }< / span >
< / code > < / pre >
< h3 id = "访问模式" > 访 问 模 式 < / h3 >
< p > 在 请 求 具 有 特 定 访 问 模 式 的 存 储 时 , 声 明 使 用 与 卷 相 同 的 约 定 。 < / p >
< h3 id = "卷模式" > 卷 模 式 < / h3 >
< p > 声 明 使 用 与 卷 相 同 的 约 定 , 指 示 将 卷 作 为 文 件 系 统 或 块 设 备 使 用 。 < / p >
< h3 id = "资源" > 资 源 < / h3 >
< p > 像 pod 一 样 , 声 明 可 以 请 求 特 定 数 量 的 资 源 。 在 这 种 情 况 下 , 请 求 是 用 于 存 储 的 。 相 同 的 < a href = "https://git.k8s.io/community/contributors/design-proposals/scheduling/resources.md" target = "_blank" > 资 源 模 型 < / a > 适 用 于 卷 和 声 明 。 < / p >
< h3 id = "选择器" > 选 择 器 < / h3 >
< p > 声 明 可 以 指 定 一 个 < a href = "https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/#label-selectors" target = "_blank" > 标 签 选 择 器 < / a > 来 进 一 步 过 滤 该 组 卷 。 只 有 标 签 与 选 择 器 匹 配 的 卷 可 以 绑 定 到 声 明 。 选 择 器 由 两 个 字 段 组 成 : < / p >
< ul >
< li > matchLabels: volume 必 须 有 具 有 该 值 的 标 签 < / li >
< li > matchExpressions: 这 是 一 个 要 求 列 表 , 通 过 指 定 关 键 字 , 值 列 表 以 及 与 关 键 字 和 值 相 关 的 运 算 符 组 成 。 有 效 的 运 算 符 包 括 In、 NotIn、 Exists 和 DoesNotExist。 < / li >
< / ul >
< p > 所 有 来 自 < code > matchLabels< / code > 和 < code > matchExpressions< / code > 的 要 求 都 被 “ 与 ” 在 一 起 — — 它 们 必 须 全 部 满 足 才 能 匹 配 。 < / p >
< h3 id = "类" > 类 < / h3 >
< p > 声 明 可 以 通 过 使 用 属 性 < code > storageClassName< / code > 指 定 < a href = "https://kubernetes.io/docs/concepts/storage/storage-classes/" target = "_blank" > StorageClass< / a > 的 名 称 来 请 求 特 定 的 类 。 只 有 所 请 求 的 类 与 PVC 具 有 相 同 < code > storageClassName< / code > 的 PV 才 能 绑 定 到 PVC。 < / p >
< p > PVC 不 一 定 要 请 求 类 。 其 < code > storageClassName< / code > 设 置 为 < code > " " < / code > 的 PVC 始 终 被 解 释 为 没 有 请 求 类 的 PV, 因 此 只 能 绑 定 到 没 有 类 的 PV( 没 有 注 解 或 < code > " " < / code > ) 。 没 有 < code > storageClassName< / code > 的 PVC 根 据 是 否 打 开 < a href = "https://kubernetes.io/docs/admin/admission-controllers/#defaultstorageclass" target = "_blank" > < code > DefaultStorageClass< / code > 准 入 控 制 插 件 < / a > , 集 群 对 其 进 行 不 同 处 理 。 < / p >
< ul >
< li > 如 果 打 开 了 准 入 控 制 插 件 , 管 理 员 可 以 指 定 一 个 默 认 的 < code > StorageClass< / code > 。 所 有 没 有 < code > StorageClassName< / code > 的 PVC 将 被 绑 定 到 该 默 认 的 PV。 通 过 在 < code > StorageClass< / code > 对 象 中 将 注 解 < code > storageclass.kubernetes.io/is-default-class< / code > 设 置 为 “ true” 来 指 定 默 认 的 < code > StorageClass< / code > 。 如 果 管 理 员 没 有 指 定 缺 省 值 , 那 么 集 群 会 响 应 PVC 创 建 , 就 好 像 关 闭 了 准 入 控 制 插 件 一 样 。 如 果 指 定 了 多 个 默 认 值 , 则 准 入 控 制 插 件 将 禁 止 所 有 PVC 创 建 。 < / li >
< li > 如 果 准 入 控 制 插 件 被 关 闭 , 则 没 有 默 认 < code > StorageClass< / code > 的 概 念 。 所 有 没 有 < code > storageClassName< / code > 的 PVC 只 能 绑 定 到 没 有 类 的 PV。 在 这 种 情 况 下 , 没 有 < code > storageClassName< / code > 的 PVC 的 处 理 方 式 与 < code > storageClassName< / code > 设 置 为 < code > " " < / code > 的 PVC 的 处 理 方 式 相 同 。 < / li >
< / ul >
< p > 根 据 安 装 方 法 的 不 同 , 默 认 的 < code > StorageClass< / code > 可 以 在 安 装 过 程 中 通 过 插 件 管 理 器 部 署 到 Kubernetes 集 群 。 < / p >
< p > 当 PVC 指 定 了 < code > selector< / code > , 除 了 请 求 一 个 < code > StorageClass< / code > 之 外 , 这 些 需 求 被 “ 与 ” 在 一 起 : 只 有 被 请 求 的 类 的 PV 具 有 和 被 请 求 的 标 签 才 可 以 被 绑 定 到 PVC。 < / p >
< p > < strong > 注 意 < / strong > : 目 前 , 具 有 非 空 < code > selector< / code > 的 PVC 不 能 为 其 动 态 配 置 PV。 < / p >
< p > 过 去 , 使 用 注 解 < code > volume.beta.kubernetes.io/storage-class< / code > 而 不 是 < code > storageClassName< / code > 属 性 。 这 个 注 解 仍 然 有 效 , 但 是 在 未 来 的 Kubernetes 版 本 中 不 会 支 持 。 < / p >
< h2 id = "声明作为卷" > 声 明 作 为 卷 < / h2 >
< p > 通 过 将 声 明 用 作 卷 来 访 问 存 储 。 声 明 必 须 与 使 用 声 明 的 pod 存 在 于 相 同 的 命 名 空 间 中 。 集 群 在 pod 的 命 名 空 间 中 查 找 声 明 , 并 使 用 它 来 获 取 支 持 声 明 的 < code > PersistentVolume< / code > 。 该 卷 然 后 被 挂 载 到 主 机 的 pod 上 。 < / p >
< pre class = "language-" > < code class = "lang-yaml" > < span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > Pod
< span class = "token key atrule" > apiVersion< / span > < span class = "token punctuation" > :< / span > v1
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > mypod
< 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 > myfrontend
< span class = "token key atrule" > image< / span > < span class = "token punctuation" > :< / span > dockerfile/nginx
< span class = "token key atrule" > volumeMounts< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > mountPath< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " /var/www/html" < / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > mypd
< span class = "token key atrule" > volumes< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > mypd
< span class = "token key atrule" > persistentVolumeClaim< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > claimName< / span > < span class = "token punctuation" > :< / span > myclaim
< / code > < / pre >
< h3 id = "命名空间注意点" > 命 名 空 间 注 意 点 < / h3 >
< p > < code > PersistentVolumes< / code > 绑 定 是 唯 一 的 , 并 且 由 于 < code > PersistentVolumeClaims< / code > 是 命 名 空 间 对 象 , 因 此 只 能 在 一 个 命 名 空 间 内 挂 载 具 有 “ 多 个 ” 模 式 ( < code > ROX< / code > 、 < code > RWX< / code > ) 的 声 明 。 < / p >
< h2 id = "原始块卷支持" > 原 始 块 卷 支 持 < / h2 >
< p > 原 始 块 卷 的 静 态 配 置 在 v1.9 中 作 为 alpha 功 能 引 入 。 由 于 这 个 改 变 , 需 要 一 些 新 的 API 字 段 来 使 用 该 功 能 。 目 前 , Fibre Channl 是 支 持 该 功 能 的 唯 一 插 件 。 < / p >
< h3 id = "使用原始块卷作为持久化卷" > 使 用 原 始 块 卷 作 为 持 久 化 卷 < / h3 >
< 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 > PersistentVolume
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > block< span class = "token punctuation" > -< / span > pv
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > capacity< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > storage< / span > < span class = "token punctuation" > :< / span > 10Gi
< span class = "token key atrule" > accessModes< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > ReadWriteOnce
< span class = "token key atrule" > volumeMode< / span > < span class = "token punctuation" > :< / span > Block
< span class = "token key atrule" > persistentVolumeReclaimPolicy< / span > < span class = "token punctuation" > :< / span > Retain
< span class = "token key atrule" > fc< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > targetWWNs< / span > < span class = "token punctuation" > :< / span > < span class = "token punctuation" > [< / span > < span class = "token string" > " 50060e801049cfd1" < / span > < span class = "token punctuation" > ]< / span >
< span class = "token key atrule" > lun< / span > < span class = "token punctuation" > :< / span > < span class = "token number" > 0< / span >
< span class = "token key atrule" > readOnly< / span > < span class = "token punctuation" > :< / span > < span class = "token boolean important" > false< / span >
< / code > < / pre >
< h3 id = "持久化卷声明请求原始块卷" > 持 久 化 卷 声 明 请 求 原 始 块 卷 < / h3 >
< 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 > PersistentVolumeClaim
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > block< span class = "token punctuation" > -< / span > pvc
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > accessModes< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > ReadWriteOnce
< span class = "token key atrule" > volumeMode< / span > < span class = "token punctuation" > :< / span > Block
< 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" > storage< / span > < span class = "token punctuation" > :< / span > 10Gi
< / code > < / pre >
< h3 id = "在-pod-规格配置中为容器添加原始块设备" > 在 Pod 规 格 配 置 中 为 容 器 添 加 原 始 块 设 备 < / h3 >
< 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 > pod< span class = "token punctuation" > -< / span > with< span class = "token punctuation" > -< / span > block< span class = "token punctuation" > -< / span > volume
< 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 > fc< span class = "token punctuation" > -< / span > container
< span class = "token key atrule" > image< / span > < span class = "token punctuation" > :< / span > fedora< span class = "token punctuation" > :< / span > < span class = "token number" > 26< / span >
< span class = "token key atrule" > command< / span > < span class = "token punctuation" > :< / span > < span class = "token punctuation" > [< / span > < span class = "token string" > " /bin/sh" < / span > < span class = "token punctuation" > ,< / span > < span class = "token string" > " -c" < / span > < span class = "token punctuation" > ]< / span >
< span class = "token key atrule" > args< / span > < span class = "token punctuation" > :< / span > < span class = "token punctuation" > [< / span > < span class = "token string" > " tail -f /dev/null" < / span > < span class = "token punctuation" > ]< / span >
< span class = "token key atrule" > volumeDevices< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > data
< span class = "token key atrule" > devicePath< / span > < span class = "token punctuation" > :< / span > /dev/xvda
< span class = "token key atrule" > volumes< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > data
< span class = "token key atrule" > persistentVolumeClaim< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > claimName< / span > < span class = "token punctuation" > :< / span > block< span class = "token punctuation" > -< / span > pvc
< / code > < / pre >
< p > < strong > 注 意 < / strong > : 当 为 Pod 增 加 原 始 块 设 备 时 , 我 们 在 容 器 中 指 定 设 备 路 径 而 不 是 挂 载 路 径 。 < / p >
< h3 id = "绑定块卷" > 绑 定 块 卷 < / h3 >
< p > 如 果 用 户 通 过 使 用 < code > PersistentVolumeClaim< / code > 规 范 中 的 < code > volumeMode< / code > 字 段 指 示 此 请 求 来 请 求 原 始 块 卷 , 则 绑 定 规 则 与 以 前 不 认 为 该 模 式 为 规 范 一 部 分 的 版 本 略 有 不 同 。 < / p >
< p > 下 面 是 用 户 和 管 理 员 指 定 请 求 原 始 块 设 备 的 可 能 组 合 的 表 格 。 该 表 指 示 卷 是 否 将 被 绑 定 或 未 给 定 组 合 。 静 态 设 置 的 卷 的 卷 绑 定 矩 阵 : < / p >
< table >
< thead >
< tr >
< th > PV volumeMode< / th >
< th style = "text-align:center" > PVC volumeMode< / th >
< th style = "text-align:right" > 结 果 < / th >
< / tr >
< / thead >
< tbody >
< tr >
< td > unspecified< / td >
< td style = "text-align:center" > unspecified< / td >
< td style = "text-align:right" > 绑 定 < / td >
< / tr >
< tr >
< td > unspecified< / td >
< td style = "text-align:center" > Block< / td >
< td style = "text-align:right" > 不 绑 定 < / td >
< / tr >
< tr >
< td > unspecified< / td >
< td style = "text-align:center" > Filesystem< / td >
< td style = "text-align:right" > 绑 定 < / td >
< / tr >
< tr >
< td > Block< / td >
< td style = "text-align:center" > unspecified< / td >
< td style = "text-align:right" > 不 绑 定 < / td >
< / tr >
< tr >
< td > Block< / td >
< td style = "text-align:center" > Block< / td >
< td style = "text-align:right" > 绑 定 < / td >
< / tr >
< tr >
< td > Block< / td >
< td style = "text-align:center" > Filesystem< / td >
< td style = "text-align:right" > 不 绑 定 < / td >
< / tr >
< tr >
< td > Filesystem< / td >
< td style = "text-align:center" > Filesystem< / td >
< td style = "text-align:right" > 绑 定 < / td >
< / tr >
< tr >
< td > Filesystem< / td >
< td style = "text-align:center" > Block< / td >
< td style = "text-align:right" > 不 绑 定 < / td >
< / tr >
< tr >
< td > Filesystem< / td >
< td style = "text-align:center" > unspecified< / td >
< td style = "text-align:right" > 绑 定 < / td >
< / tr >
< / tbody >
< / table >
< p > < strong > 注 意 < / strong > : alpha 版 本 只 支 持 静 态 配 置 卷 。 使 用 原 始 块 设 备 时 , 管 理 员 应 该 注 意 考 虑 这 些 值 。 < / p >
< h2 id = "编写可移植配置" > 编 写 可 移 植 配 置 < / h2 >
< p > 如 果 您 正 在 编 写 在 多 种 集 群 上 运 行 并 需 要 持 久 存 储 的 配 置 模 板 或 示 例 , 我 们 建 议 您 使 用 以 下 模 式 : < / p >
< ul >
< li > 要 在 您 的 在 配 置 组 合 中 包 含 < code > PersistentVolumeClaim< / code > 对 象 ( 与 Deployment、 ConfigMap等 一 起 ) 。 < / li >
< li > 不 要 在 配 置 中 包 含 < code > PersistentVolume< / code > 对 象 , 因 为 用 户 实 例 化 配 置 可 能 没 有 创 建 < code > PersistentVolume< / code > 的 权 限 。 < / li >
< li > 给 用 户 在 实 例 化 模 板 时 提 供 存 储 类 名 称 的 选 项 。 < ul >
< li > 如 果 用 户 提 供 存 储 类 名 称 , 则 将 该 值 放 入 < code > persistentVolumeClaim.storageClassName< / code > 字 段 中 。 如 果 集 群 具 有 由 管 理 员 启 用 的 StorageClass, 这 将 导 致 PVC 匹 配 正 确 的 存 储 类 别 。 < / li >
< li > 如 果 用 户 未 提 供 存 储 类 名 称 , 则 将 < code > persistentVolumeClaim.storageClassName< / code > 字 段 保 留 为 nil。 < ul >
< li > 这 将 导 致 使 用 集 群 中 默 认 的 StorageClass 为 用 户 自 动 配 置 PV。 许 多 集 群 环 境 都 有 默 认 的 StorageClass, 或 者 管 理 员 可 以 创 建 自 己 的 默 认 StorageClass。 < / li >
< / ul >
< / li >
< / ul >
< / li >
< li > 在 您 的 工 具 中 , 请 注 意 一 段 时 间 之 后 仍 未 绑 定 的 PVC, 并 向 用 户 展 示 它 们 , 因 为 这 表 示 集 群 可 能 没 有 动 态 存 储 支 持 ( 在 这 种 情 况 下 用 户 应 创 建 匹 配 的 PV) , 或 集 群 没 有 存 储 系 统 ( 在 这 种 情 况 下 用 户 不 能 部 署 需 要 PVC 的 配 置 ) 。 < / li >
< / ul >
< p > 原 文 地 址 : < a href = "https://kubernetes.io/docs/concepts/storage/persistent-volumes/" target = "_blank" > https://kubernetes.io/docs/concepts/storage/persistent-volumes/< / a > < / p >
< p > 译 者 : < a href = "https://github.com/rootsongjc" target = "_blank" > rootsongjc< / a > < / p >
2020-11-18 19:26:50 +08:00
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