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< title > ConfigMap 的热更新 · Kubernetes Handbook - Kubernetes中文指南/云原生应用架构实践手册 by Jimmy Song(宋净超)< / title >
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< a href = "https://jimmysong.io" target = "_blank" class = "custom-link" > 回到主页< / a >
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< a href = "https://jimmysong.io/awesome-cloud-native" target = "_blank" class = "custom-link" > 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（ ）
< / 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
< / a >
< / 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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< / a >
< / 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 >
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< 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（ ）
< / 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（ ）
< / 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（ ）
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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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< / ul >
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< / li >
< 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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< 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
< / a >
< / 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 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 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 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（
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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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< li class = "chapter " data-level = "3.5.1" data-path = "node.html" >
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< 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（ ）
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< 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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< b > 3.6.< / b >
控制器
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< b > 3.6.1.< / b >
Deployment
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< li class = "chapter " data-level = "3.6.2" data-path = "statefulset.html" >
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< b > 3.6.2.< / b >
StatefulSet
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< li class = "chapter " data-level = "3.6.3" data-path = "daemonset.html" >
< a href = "daemonset.html" >
< b > 3.6.3.< / b >
DaemonSet
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< 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（ ）
< / 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 >
2021-02-09 20:56:37 +08:00
< / li >
< li class = "chapter " data-level = "3.7.3" data-path = "kubernetes-service-api.html" >
< a href = "kubernetes-service-api.html" >
< b > 3.7.3.< / b >
Kubernetes Service API
< / a >
2021-02-10 18:38:59 +08:00
< ul class = "articles" >
< li class = "chapter " data-level = "3.7.3.1" data-path = "service-api-overview.html" >
< a href = "service-api-overview.html" >
< b > 3.7.3.1.< / b >
Service API 简介
< / a >
< / li >
< / ul >
2020-06-19 14:52:56 +08:00
< / 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 active" 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 " data-level = "3.9.4" data-path = "persistent-volume.html" >
< a href = "persistent-volume.html" >
< b > 3.9.4.< / b >
Persistent Volume（ ）
< / 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 >
2021-02-09 20:56:37 +08:00
< / li >
< li class = "chapter " data-level = "3.10.6" data-path = "multicluster.html" >
< a href = "multicluster.html" >
< b > 3.10.6.< / b >
多集群管理
< / a >
2020-06-19 14:52:56 +08:00
< / 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（ ）
< / 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 >
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< 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 >
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< / 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 >
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< li class = "chapter " data-level = "6.3" data-path = "../usecases/observability.html" >
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2020-11-23 12:24:15 +08:00
< a href = "../usecases/observability.html" >
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< b > 6.3.< / b >
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可观察性
< / a >
< / li >
< li class = "chapter " data-level = "6.4" data-path = "../usecases/service-mesh.html" >
< a href = "../usecases/service-mesh.html" >
< b > 6.4.< / b >
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Service Mesh 服务网格
< / a >
< ul class = "articles" >
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< li class = "chapter " data-level = "6.4.1" data-path = "../usecases/the-enterprise-path-to-service-mesh-architectures.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/the-enterprise-path-to-service-mesh-architectures.html" >
2020-11-23 12:24:15 +08:00
< b > 6.4.1.< / b >
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企业级服务网格架构
< / a >
< ul class = "articles" >
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< li class = "chapter " data-level = "6.4.1.1" data-path = "../usecases/service-mesh-fundamental.html" >
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< a href = "../usecases/service-mesh-fundamental.html" >
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< b > 6.4.1.1.< / b >
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Service Mesh 基础
< / a >
< / li >
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< li class = "chapter " data-level = "6.4.1.2" data-path = "../usecases/comparing-service-mesh-technologies.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/comparing-service-mesh-technologies.html" >
2020-11-23 12:24:15 +08:00
< b > 6.4.1.2.< / b >
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Service Mesh 技术对比
< / a >
< / li >
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< li class = "chapter " data-level = "6.4.1.3" data-path = "../usecases/service-mesh-adoption-and-evolution.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/service-mesh-adoption-and-evolution.html" >
2020-11-23 12:24:15 +08:00
< b > 6.4.1.3.< / b >
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采纳和演进
< / a >
< / li >
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< li class = "chapter " data-level = "6.4.1.4" data-path = "../usecases/service-mesh-customization-and-integration.html" >
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< a href = "../usecases/service-mesh-customization-and-integration.html" >
2020-11-23 12:24:15 +08:00
< b > 6.4.1.4.< / b >
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定制和集成
< / a >
< / li >
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< li class = "chapter " data-level = "6.4.1.5" data-path = "../usecases/service-mesh-conclusion.html" >
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< a href = "../usecases/service-mesh-conclusion.html" >
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< b > 6.4.1.5.< / b >
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总结
< / a >
< / li >
< / ul >
< / li >
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< li class = "chapter " data-level = "6.4.2" data-path = "../usecases/istio.html" >
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< a href = "../usecases/istio.html" >
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< b > 6.4.2.< / b >
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Istio
< / a >
< ul class = "articles" >
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< li class = "chapter " data-level = "6.4.2.1" data-path = "../usecases/istio-installation.html" >
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< a href = "../usecases/istio-installation.html" >
2020-11-23 12:24:15 +08:00
< b > 6.4.2.1.< / b >
2020-06-19 14:52:56 +08:00
2021-02-27 20:28:29 +08:00
安装并试用 Istio
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< / a >
< / li >
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< li class = "chapter " data-level = "6.4.2.2" data-path = "../usecases/sidecar-spec-in-istio.html" >
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< a href = "../usecases/sidecar-spec-in-istio.html" >
2020-11-23 12:24:15 +08:00
< b > 6.4.2.2.< / b >
2020-06-19 14:52:56 +08:00
Istio 中 sidecar 的注入规范及示例
< / a >
< / li >
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< li class = "chapter " data-level = "6.4.2.3" data-path = "../usecases/istio-community-tips.html" >
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< a href = "../usecases/istio-community-tips.html" >
2020-11-23 12:24:15 +08:00
< b > 6.4.2.3.< / b >
2020-06-19 14:52:56 +08:00
如何参与 Istio 社区及注意事项
< / a >
< / li >
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< li class = "chapter " data-level = "6.4.2.4" data-path = "../usecases/istio-tutorials-collection.html" >
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< a href = "../usecases/istio-tutorials-collection.html" >
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< b > 6.4.2.4.< / b >
2020-06-19 14:52:56 +08:00
Istio 免费学习资源汇总
< / a >
< / li >
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< li class = "chapter " data-level = "6.4.2.5" data-path = "../usecases/understand-sidecar-injection-and-traffic-hijack-in-istio-service-mesh.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/understand-sidecar-injection-and-traffic-hijack-in-istio-service-mesh.html" >
2020-11-23 12:24:15 +08:00
< b > 6.4.2.5.< / b >
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Sidecar 的注入与流量劫持
< / a >
< / li >
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< li class = "chapter " data-level = "6.4.2.6" data-path = "../usecases/envoy-sidecar-routing-of-istio-service-mesh-deep-dive.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/envoy-sidecar-routing-of-istio-service-mesh-deep-dive.html" >
2020-11-23 12:24:15 +08:00
< b > 6.4.2.6.< / b >
2020-06-19 14:52:56 +08:00
Envoy Sidecar 代理的路由转发
< / a >
2020-11-18 17:21:45 +08:00
< / li >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.4.2.7" data-path = "../usecases/how-to-integrate-istio-with-vm.html" >
2020-11-18 17:21:45 +08:00
< a href = "../usecases/how-to-integrate-istio-with-vm.html" >
2020-11-23 12:24:15 +08:00
< b > 6.4.2.7.< / b >
2020-11-18 17:21:45 +08:00
Istio 如何支持虚拟机
< / a >
2020-12-25 20:38:09 +08:00
< / li >
< li class = "chapter " data-level = "6.4.2.8" data-path = "../usecases/istio-vm-support.html" >
< a href = "../usecases/istio-vm-support.html" >
< b > 6.4.2.8.< / b >
Istio 支持虚拟机的历史
< / a >
2020-06-19 14:52:56 +08:00
< / li >
< / ul >
< / li >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.4.3" data-path = "../usecases/linkerd.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/linkerd.html" >
2020-11-23 12:24:15 +08:00
< b > 6.4.3.< / b >
2020-06-19 14:52:56 +08:00
Linkerd
< / a >
< ul class = "articles" >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.4.3.1" data-path = "../usecases/linkerd-user-guide.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/linkerd-user-guide.html" >
2020-11-23 12:24:15 +08:00
< b > 6.4.3.1.< / b >
2020-06-19 14:52:56 +08:00
Linkerd 使用指南
< / a >
< / li >
< / ul >
< / li >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.4.4" data-path = "../usecases/conduit.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/conduit.html" >
2020-11-23 12:24:15 +08:00
< b > 6.4.4.< / b >
2020-06-19 14:52:56 +08:00
Conduit
< / a >
< ul class = "articles" >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.4.4.1" data-path = "../usecases/conduit-overview.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/conduit-overview.html" >
2020-11-23 12:24:15 +08:00
< b > 6.4.4.1.< / b >
2020-06-19 14:52:56 +08:00
Condiut 概览
< / a >
< / li >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.4.4.2" data-path = "../usecases/conduit-installation.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/conduit-installation.html" >
2020-11-23 12:24:15 +08:00
< b > 6.4.4.2.< / b >
2020-06-19 14:52:56 +08:00
安装 Conduit
< / a >
< / li >
< / ul >
< / li >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.4.5" data-path = "../usecases/envoy.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/envoy.html" >
2020-11-23 12:24:15 +08:00
< b > 6.4.5.< / b >
2020-06-19 14:52:56 +08:00
Envoy
< / a >
< ul class = "articles" >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.4.5.1" data-path = "../usecases/envoy-terminology.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/envoy-terminology.html" >
2020-11-23 12:24:15 +08:00
< b > 6.4.5.1.< / b >
2020-06-19 14:52:56 +08:00
Envoy 的架构与基本术语
< / a >
< / li >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.4.5.2" data-path = "../usecases/envoy-front-proxy.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/envoy-front-proxy.html" >
2020-11-23 12:24:15 +08:00
< b > 6.4.5.2.< / b >
2020-06-19 14:52:56 +08:00
Envoy 作为前端代理
< / a >
< / li >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.4.5.3" data-path = "../usecases/envoy-mesh-in-kubernetes-tutorial.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/envoy-mesh-in-kubernetes-tutorial.html" >
2020-11-23 12:24:15 +08:00
< b > 6.4.5.3.< / b >
2020-06-19 14:52:56 +08:00
Envoy mesh 教程
< / a >
< / li >
< / ul >
< / li >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.4.6" data-path = "../usecases/mosn.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/mosn.html" >
2020-11-23 12:24:15 +08:00
< b > 6.4.6.< / b >
2020-06-19 14:52:56 +08:00
MOSN
< / a >
< / li >
< / ul >
< / li >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.5" data-path = "../usecases/big-data.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/big-data.html" >
2020-11-23 12:24:15 +08:00
< b > 6.5.< / b >
2020-06-19 14:52:56 +08:00
大数据
< / a >
< ul class = "articles" >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.5.1" data-path = "../usecases/spark-standalone-on-kubernetes.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/spark-standalone-on-kubernetes.html" >
2020-11-23 12:24:15 +08:00
< b > 6.5.1.< / b >
2020-06-19 14:52:56 +08:00
Spark standalone on Kubernetes
< / a >
< / li >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.5.2" data-path = "../usecases/running-spark-with-kubernetes-native-scheduler.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/running-spark-with-kubernetes-native-scheduler.html" >
2020-11-23 12:24:15 +08:00
< b > 6.5.2.< / b >
2020-06-19 14:52:56 +08:00
运行支持 Kubernetes 原生调度的 Spark 程序
< / a >
< / li >
< / ul >
< / li >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.6" data-path = "../usecases/serverless.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/serverless.html" >
2020-11-23 12:24:15 +08:00
< b > 6.6.< / b >
2020-06-19 14:52:56 +08:00
Serverless 架构
< / a >
< ul class = "articles" >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.6.1" data-path = "../usecases/understanding-serverless.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/understanding-serverless.html" >
2020-11-23 12:24:15 +08:00
< b > 6.6.1.< / b >
2020-06-19 14:52:56 +08:00
理解 Serverless
< / a >
< / li >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.6.2" data-path = "../usecases/faas.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/faas.html" >
2020-11-23 12:24:15 +08:00
< b > 6.6.2.< / b >
2020-06-19 14:52:56 +08:00
FaaS（ ）
< / a >
< ul class = "articles" >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.6.2.1" data-path = "../usecases/openfaas-quick-start.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/openfaas-quick-start.html" >
2020-11-23 12:24:15 +08:00
< b > 6.6.2.1.< / b >
2020-06-19 14:52:56 +08:00
OpenFaaS 快速入门指南
< / a >
< / li >
< / ul >
< / li >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.6.3" data-path = "../usecases/knative.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/knative.html" >
2020-11-23 12:24:15 +08:00
< b > 6.6.3.< / b >
2020-06-19 14:52:56 +08:00
Knative
< / a >
< / li >
< / ul >
< / li >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.7" data-path = "../usecases/edge-computing.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/edge-computing.html" >
2020-11-23 12:24:15 +08:00
< b > 6.7.< / b >
2020-06-19 14:52:56 +08:00
边缘计算
< / a >
< / li >
2020-11-23 12:24:15 +08:00
< li class = "chapter " data-level = "6.8" data-path = "../usecases/ai.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/ai.html" >
2020-11-23 12:24:15 +08:00
< b > 6.8.< / 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（ ） < / li >
< li class = "chapter " data-level = "8.1" data-path = "../cloud-native/cncf.html" >
< a href = "../cloud-native/cncf.html" >
< b > 8.1.< / b >
CNCF - 云原生计算基金会简介
< / a >
< / li >
< li class = "chapter " data-level = "8.2" data-path = "../cloud-native/cncf-charter.html" >
< a href = "../cloud-native/cncf-charter.html" >
< b > 8.2.< / b >
CNCF 章程
< / a >
< / li >
< li class = "chapter " data-level = "8.3" data-path = "../cloud-native/cncf-sig.html" >
< a href = "../cloud-native/cncf-sig.html" >
< b > 8.3.< / b >
CNCF 特别兴趣小组（ ）
< / a >
< / li >
< li class = "chapter " data-level = "8.4" data-path = "../cloud-native/cncf-sandbox-criteria.html" >
< a href = "../cloud-native/cncf-sandbox-criteria.html" >
< b > 8.4.< / b >
开源项目加入 CNCF Sandbox 的要求
< / a >
< / li >
< li class = "chapter " data-level = "8.5" data-path = "../cloud-native/cncf-project-governing.html" >
< a href = "../cloud-native/cncf-project-governing.html" >
< b > 8.5.< / b >
CNCF 中的项目治理
< / a >
< / li >
< li class = "chapter " data-level = "8.6" data-path = "../cloud-native/cncf-ambassador.html" >
< a href = "../cloud-native/cncf-ambassador.html" >
< b > 8.6.< / b >
CNCF Ambassador
< / a >
< / li >
< li class = "header" > 附录< / li >
< li class = "chapter " data-level = "9.1" data-path = "../appendix/" >
< a href = "../appendix/" >
< b > 9.1.< / b >
附录说明
< / a >
< / li >
< li class = "chapter " data-level = "9.2" data-path = "../appendix/debug-kubernetes-services.html" >
< a href = "../appendix/debug-kubernetes-services.html" >
< b > 9.2.< / b >
Kubernetes 中的应用故障排查
< / a >
< / li >
< li class = "chapter " data-level = "9.3" data-path = "../appendix/material-share.html" >
< a href = "../appendix/material-share.html" >
< b > 9.3.< / b >
Kubernetes 相关资讯和情报链接
< / a >
< / li >
< li class = "chapter " data-level = "9.4" data-path = "../appendix/docker-best-practice.html" >
< a href = "../appendix/docker-best-practice.html" >
< b > 9.4.< / b >
Docker 最佳实践
< / a >
< / li >
< li class = "chapter " data-level = "9.5" data-path = "../appendix/tricks.html" >
< a href = "../appendix/tricks.html" >
< b > 9.5.< / b >
使用技巧
< / a >
< / li >
< li class = "chapter " data-level = "9.6" data-path = "../appendix/issues.html" >
< a href = "../appendix/issues.html" >
< b > 9.6.< / b >
问题记录
< / a >
< / li >
< li class = "chapter " data-level = "9.7" data-path = "../appendix/kubernetes-changelog.html" >
< a href = "../appendix/kubernetes-changelog.html" >
< b > 9.7.< / b >
Kubernetes 版本更新日志
< / a >
< / 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 >
2021-01-09 21:48:01 +08:00
< / li >
< li class = "chapter " data-level = "9.9.2" data-path = "../appendix/cncf-annual-report-2020.html" >
< a href = "../appendix/cncf-annual-report-2020.html" >
< b > 9.9.2.< / b >
CNCF 2020 年年度报告解读
< / a >
2020-06-19 14:52:56 +08:00
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "9.10" data-path = "../appendix/about-kcsp.html" >
< a href = "../appendix/about-kcsp.html" >
< b > 9.10.< / b >
Kubernetes 认证服务提供商（ ）
< / a >
< / li >
< li class = "chapter " data-level = "9.11" data-path = "../appendix/about-cka-candidate.html" >
< a href = "../appendix/about-cka-candidate.html" >
< b > 9.11.< / b >
认证 Kubernetes 管理员（ ）
< / a >
< / li >
< li class = "divider" > < / li >
< li >
< a href = "https://www.gitbook.com" target = "blank" class = "gitbook-link" >
本书使用 GitBook 发布
< / a >
< / li >
< / ul >
< / nav >
< / div >
< div class = "book-body" >
< div class = "body-inner" >
< div class = "book-header" role = "navigation" >
<!-- Title -->
< h1 >
< i class = "fa fa-circle-o-notch fa-spin" > < / i >
< a href = ".." > ConfigMap 的热更新< / 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 = "configmap的热更新" > ConfigMap的 热 更 新 < / h1 >
< p > ConfigMap是 用 来 存 储 配 置 文 件 的 kubernetes资 源 对 象 ， 所 有 的 配 置 内 容 都 存 储 在 etcd中 ， 下 文 主 要 是 探 究 ConfigMap 的 创 建 和 更 新 流 程 ， 以 及 对 ConfigMap 更 新 后 容 器 内 挂 载 的 内 容 是 否 同 步 更 新 的 测 试 。 < / p >
< h2 id = "测试示例" > 测 试 示 例 < / h2 >
< p > 假 设 我 们 在 < code > default< / code > namespace 下 有 一 个 名 为 < code > nginx-config< / code > 的 ConfigMap， 可 以 使 用 < code > kubectl< / code > 命 令 来 获 取 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > $ kubectl get configmap nginx-config
NAME DATA AGE
nginx-config < span class = "token number" > 1< / span > 99d
< / code > < / pre >
< p > 获 取 该 ConfigMap的 内 容 。 < / p >
< pre class = "language-" > < code class = "lang-bash" > kubectl get configmap nginx-config -o yaml
< / code > < / pre >
< pre class = "language-" > < code class = "lang-bash" > apiVersion: v1
data:
nginx.conf: < span class = "token operator" > |< / span > -
worker_processes < span class = "token number" > 1< / span > < span class = "token punctuation" > ;< / span >
events < span class = "token punctuation" > {< / span > worker_connections < span class = "token number" > 1024< / span > < span class = "token punctuation" > ;< / span > < span class = "token punctuation" > }< / span >
http < span class = "token punctuation" > {< / span >
sendfile on< span class = "token punctuation" > ;< / span >
server < span class = "token punctuation" > {< / span >
listen < span class = "token number" > 80< / span > < span class = "token punctuation" > ;< / span >
< span class = "token comment" > # a test endpoint that returns http 200s< / span >
location / < span class = "token punctuation" > {< / span >
proxy_pass http://httpstat.us/200< span class = "token punctuation" > ;< / span >
proxy_set_header X-Real-IP < span class = "token variable" > $remote_addr< / span > < span class = "token punctuation" > ;< / span >
< span class = "token punctuation" > }< / span >
< span class = "token punctuation" > }< / span >
server < span class = "token punctuation" > {< / span >
listen < span class = "token number" > 80< / span > < span class = "token punctuation" > ;< / span >
server_name api.hello.world< span class = "token punctuation" > ;< / span >
location / < span class = "token punctuation" > {< / span >
proxy_pass http://l5d.default.svc.cluster.local< span class = "token punctuation" > ;< / span >
proxy_set_header Host < span class = "token variable" > $host< / span > < span class = "token punctuation" > ;< / span >
proxy_set_header Connection < span class = "token string" > " " < / span > < span class = "token punctuation" > ;< / span >
proxy_http_version < span class = "token number" > 1.1< / span > < span class = "token punctuation" > ;< / span >
more_clear_input_headers < span class = "token string" > ' l5d-ctx-*' < / span > < span class = "token string" > ' l5d-dtab' < / span > < span class = "token string" > ' l5d-sample' < / span > < span class = "token punctuation" > ;< / span >
< span class = "token punctuation" > }< / span >
< span class = "token punctuation" > }< / span >
server < span class = "token punctuation" > {< / span >
listen < span class = "token number" > 80< / span > < span class = "token punctuation" > ;< / span >
server_name www.hello.world< span class = "token punctuation" > ;< / span >
location / < span class = "token punctuation" > {< / span >
< span class = "token comment" > # allow ' employees' to perform dtab overrides< / span >
< span class = "token keyword" > if< / span > < span class = "token punctuation" > (< / span > < span class = "token variable" > $cookie_special_employee_cookie< / span > < span class = "token operator" > !=< / span > < span class = "token string" > " letmein" < / span > < span class = "token punctuation" > )< / span > < span class = "token punctuation" > {< / span >
more_clear_input_headers < span class = "token string" > ' l5d-ctx-*' < / span > < span class = "token string" > ' l5d-dtab' < / span > < span class = "token string" > ' l5d-sample' < / span > < span class = "token punctuation" > ;< / span >
< span class = "token punctuation" > }< / span >
< span class = "token comment" > # add a dtab override to get people to our beta, world-v2< / span >
< span class = "token builtin class-name" > set< / span > < span class = "token variable" > $xheader< / span > < span class = "token string" > " " < / span > < span class = "token punctuation" > ;< / span >
< span class = "token keyword" > if< / span > < span class = "token punctuation" > (< / span > < span class = "token variable" > $cookie_special_employee_cookie< / span > ~* < span class = "token string" > " dogfood" < / span > < span class = "token punctuation" > )< / span > < span class = "token punctuation" > {< / span >
< span class = "token builtin class-name" > set< / span > < span class = "token variable" > $xheader< / span > < span class = "token string" > " /host/world => /srv/world-v2;" < / span > < span class = "token punctuation" > ;< / span >
< span class = "token punctuation" > }< / span >
proxy_set_header < span class = "token string" > ' l5d-dtab' < / span > < span class = "token variable" > $xheader< / span > < span class = "token punctuation" > ;< / span >
proxy_pass http://l5d.default.svc.cluster.local< span class = "token punctuation" > ;< / span >
proxy_set_header Host < span class = "token variable" > $host< / span > < span class = "token punctuation" > ;< / span >
proxy_set_header Connection < span class = "token string" > " " < / span > < span class = "token punctuation" > ;< / span >
proxy_http_version < span class = "token number" > 1.1< / span > < span class = "token punctuation" > ;< / span >
< span class = "token punctuation" > }< / span >
< span class = "token punctuation" > }< / span >
< span class = "token punctuation" > }< / span >
kind: ConfigMap
metadata:
creationTimestamp: < span class = "token number" > 2017< / span > -08-01T06:53:17Z
name: nginx-config
namespace: default
resourceVersion: < span class = "token string" > " 14925806" < / span >
selfLink: /api/v1/namespaces/default/configmaps/nginx-config
uid: 18d70527-7686-11e7-bfbd-8af1e3a7c5bd
< / code > < / pre >
< p > ConfigMap中 的 内 容 是 存 储 到 etcd中 的 ， 然 后 查 询 etcd： < / p >
< pre class = "language-" > < code class = "lang-bash" > < span class = "token assign-left variable" > ETCDCTL_API< / span > < span class = "token operator" > =< / span > < span class = "token number" > 3< / span > etcdctl get /registry/configmaps/default/nginx-config -w json< span class = "token operator" > |< / span > python -m json.tool
< / code > < / pre >
< p > 注 意 使 用 v3 版 本 的 etcdctl API， 下 面 是 输 出 结 果 ： < / p >
< pre class = "language-" > < code class = "lang-json" > < span class = "token punctuation" > {< / span >
< span class = "token property" > " count" < / span > < span class = "token operator" > :< / span > < span class = "token number" > 1< / span > < span class = "token punctuation" > ,< / span >
< span class = "token property" > " header" < / span > < span class = "token operator" > :< / span > < span class = "token punctuation" > {< / span >
< span class = "token property" > " cluster_id" < / span > < span class = "token operator" > :< / span > < span class = "token number" > 12091028579527406772< / span > < span class = "token punctuation" > ,< / span >
< span class = "token property" > " member_id" < / span > < span class = "token operator" > :< / span > < span class = "token number" > 16557816780141026208< / span > < span class = "token punctuation" > ,< / span >
< span class = "token property" > " raft_term" < / span > < span class = "token operator" > :< / span > < span class = "token number" > 36< / span > < span class = "token punctuation" > ,< / span >
< span class = "token property" > " revision" < / span > < span class = "token operator" > :< / span > < span class = "token number" > 29258723< / span >
< span class = "token punctuation" > }< / span > < span class = "token punctuation" > ,< / span >
< span class = "token property" > " kvs" < / span > < span class = "token operator" > :< / span > < span class = "token punctuation" > [< / span >
< span class = "token punctuation" > {< / span >
< span class = "token property" > " create_revision" < / span > < span class = "token operator" > :< / span > < span class = "token number" > 14925806< / span > < span class = "token punctuation" > ,< / span >
< span class = "token property" > " key" < / span > < span class = "token operator" > :< / span > < span class = "token string" > " L3JlZ2lzdHJ5L2NvbmZpZ21hcHMvZGVmYXVsdC9uZ2lueC1jb25maWc=" < / span > < span class = "token punctuation" > ,< / span >
< span class = "token property" > " mod_revision" < / span > < span class = "token operator" > :< / span > < span class = "token number" > 14925806< / span > < span class = "token punctuation" > ,< / span >
< span class = "token property" > " value" < / span > < span class = "token operator" > :< / span > < span class = "token string" > " 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" < / span > < span class = "token punctuation" > ,< / span >
< span class = "token property" > " version" < / span > < span class = "token operator" > :< / span > < span class = "token number" > 1< / span >
< span class = "token punctuation" > }< / span >
< span class = "token punctuation" > ]< / span >
< span class = "token punctuation" > }< / span >
< / code > < / pre >
< p > 其 中 的 value就 是 < code > nginx.conf< / code > 配 置 文 件 的 内 容 。 < / p >
< p > 可 以 使 用 base64解 码 查 看 具 体 值 ， 关 于 etcdctl的 使 用 请 参 考 < a href = "../guide/using-etcdctl-to-access-kubernetes-data.html" > 使 用 etcdctl访 问 kuberentes数 据 < / a > 。 < / p >
< h2 id = "代码" > 代 码 < / h2 >
< p > ConfigMap 结 构 体 的 定 义 ： < / p >
< pre class = "language-" > < code class = "lang-go" > < span class = "token comment" > // ConfigMap holds configuration data for pods to consume.< / span >
< span class = "token keyword" > type< / span > ConfigMap < span class = "token keyword" > struct< / span > < span class = "token punctuation" > {< / span >
metav1< span class = "token punctuation" > .< / span > TypeMeta < span class = "token string" > `json:" ,inline" `< / span >
< span class = "token comment" > // Standard object' s metadata.< / span >
< span class = "token comment" > // More info: http://releases.k8s.io/HEAD/docs/devel/api-conventions.md#metadata< / span >
< span class = "token comment" > // +optional< / span >
metav1< span class = "token punctuation" > .< / span > ObjectMeta < span class = "token string" > `json:" metadata,omitempty" protobuf:" bytes,1,opt,name=metadata" `< / span >
< span class = "token comment" > // Data contains the configuration data.< / span >
< span class = "token comment" > // Each key must be a valid DNS_SUBDOMAIN with an optional leading dot.< / span >
< span class = "token comment" > // +optional< / span >
Data < span class = "token keyword" > map< / span > < span class = "token punctuation" > [< / span > < span class = "token builtin" > string< / span > < span class = "token punctuation" > ]< / span > < span class = "token builtin" > string< / span > < span class = "token string" > `json:" data,omitempty" protobuf:" bytes,2,rep,name=data" `< / span >
< span class = "token punctuation" > }< / span >
< / code > < / pre >
< p > 在 < code > staging/src/k8s.io/client-go/kubernetes/typed/core/v1/configmap.go< / code > 中 ConfigMap 的 接 口 定 义 ： < / p >
< pre class = "language-" > < code class = "lang-go" > < span class = "token comment" > // ConfigMapInterface has methods to work with ConfigMap resources.< / span >
< span class = "token keyword" > type< / span > ConfigMapInterface < span class = "token keyword" > interface< / span > < span class = "token punctuation" > {< / span >
< span class = "token function" > Create< / span > < span class = "token punctuation" > (< / span > < span class = "token operator" > *< / span > v1< span class = "token punctuation" > .< / span > ConfigMap< span class = "token punctuation" > )< / span > < span class = "token punctuation" > (< / span > < span class = "token operator" > *< / span > v1< span class = "token punctuation" > .< / span > ConfigMap< span class = "token punctuation" > ,< / span > < span class = "token builtin" > error< / span > < span class = "token punctuation" > )< / span >
< span class = "token function" > Update< / span > < span class = "token punctuation" > (< / span > < span class = "token operator" > *< / span > v1< span class = "token punctuation" > .< / span > ConfigMap< span class = "token punctuation" > )< / span > < span class = "token punctuation" > (< / span > < span class = "token operator" > *< / span > v1< span class = "token punctuation" > .< / span > ConfigMap< span class = "token punctuation" > ,< / span > < span class = "token builtin" > error< / span > < span class = "token punctuation" > )< / span >
< span class = "token function" > Delete< / span > < span class = "token punctuation" > (< / span > name < span class = "token builtin" > string< / span > < span class = "token punctuation" > ,< / span > options < span class = "token operator" > *< / span > meta_v1< span class = "token punctuation" > .< / span > DeleteOptions< span class = "token punctuation" > )< / span > < span class = "token builtin" > error< / span >
< span class = "token function" > DeleteCollection< / span > < span class = "token punctuation" > (< / span > options < span class = "token operator" > *< / span > meta_v1< span class = "token punctuation" > .< / span > DeleteOptions< span class = "token punctuation" > ,< / span > listOptions meta_v1< span class = "token punctuation" > .< / span > ListOptions< span class = "token punctuation" > )< / span > < span class = "token builtin" > error< / span >
< span class = "token function" > Get< / span > < span class = "token punctuation" > (< / span > name < span class = "token builtin" > string< / span > < span class = "token punctuation" > ,< / span > options meta_v1< span class = "token punctuation" > .< / span > GetOptions< span class = "token punctuation" > )< / span > < span class = "token punctuation" > (< / span > < span class = "token operator" > *< / span > v1< span class = "token punctuation" > .< / span > ConfigMap< span class = "token punctuation" > ,< / span > < span class = "token builtin" > error< / span > < span class = "token punctuation" > )< / span >
< span class = "token function" > List< / span > < span class = "token punctuation" > (< / span > opts meta_v1< span class = "token punctuation" > .< / span > ListOptions< span class = "token punctuation" > )< / span > < span class = "token punctuation" > (< / span > < span class = "token operator" > *< / span > v1< span class = "token punctuation" > .< / span > ConfigMapList< span class = "token punctuation" > ,< / span > < span class = "token builtin" > error< / span > < span class = "token punctuation" > )< / span >
< span class = "token function" > Watch< / span > < span class = "token punctuation" > (< / span > opts meta_v1< span class = "token punctuation" > .< / span > ListOptions< span class = "token punctuation" > )< / span > < span class = "token punctuation" > (< / span > watch< span class = "token punctuation" > .< / span > Interface< span class = "token punctuation" > ,< / span > < span class = "token builtin" > error< / span > < span class = "token punctuation" > )< / span >
< span class = "token function" > Patch< / span > < span class = "token punctuation" > (< / span > name < span class = "token builtin" > string< / span > < span class = "token punctuation" > ,< / span > pt types< span class = "token punctuation" > .< / span > PatchType< span class = "token punctuation" > ,< / span > data < span class = "token punctuation" > [< / span > < span class = "token punctuation" > ]< / span > < span class = "token builtin" > byte< / span > < span class = "token punctuation" > ,< / span > subresources < span class = "token operator" > ...< / span > < span class = "token builtin" > string< / span > < span class = "token punctuation" > )< / span > < span class = "token punctuation" > (< / span > result < span class = "token operator" > *< / span > v1< span class = "token punctuation" > .< / span > ConfigMap< span class = "token punctuation" > ,< / span > err < span class = "token builtin" > error< / span > < span class = "token punctuation" > )< / span >
ConfigMapExpansion
< span class = "token punctuation" > }< / span >
< / code > < / pre >
< p > 在 < code > staging/src/k8s.io/client-go/kubernetes/typed/core/v1/configmap.go< / code > 中 创 建 ConfigMap 的 方 法 如 下 :< / p >
< pre class = "language-" > < code class = "lang-go" > < span class = "token comment" > // Create takes the representation of a configMap and creates it. Returns the server' s representation of the configMap, and an error, if there is any.< / span >
< span class = "token keyword" > func< / span > < span class = "token punctuation" > (< / span > c < span class = "token operator" > *< / span > configMaps< span class = "token punctuation" > )< / span > < span class = "token function" > Create< / span > < span class = "token punctuation" > (< / span > configMap < span class = "token operator" > *< / span > v1< span class = "token punctuation" > .< / span > ConfigMap< span class = "token punctuation" > )< / span > < span class = "token punctuation" > (< / span > result < span class = "token operator" > *< / span > v1< span class = "token punctuation" > .< / span > ConfigMap< span class = "token punctuation" > ,< / span > err < span class = "token builtin" > error< / span > < span class = "token punctuation" > )< / span > < span class = "token punctuation" > {< / span >
result < span class = "token operator" > =< / span > < span class = "token operator" > & < / span > v1< span class = "token punctuation" > .< / span > ConfigMap< span class = "token punctuation" > {< / span > < span class = "token punctuation" > }< / span >
err < span class = "token operator" > =< / span > c< span class = "token punctuation" > .< / span > client< span class = "token punctuation" > .< / span > < span class = "token function" > Post< / span > < span class = "token punctuation" > (< / span > < span class = "token punctuation" > )< / span > < span class = "token punctuation" > .< / span >
< span class = "token function" > Namespace< / span > < span class = "token punctuation" > (< / span > c< span class = "token punctuation" > .< / span > ns< span class = "token punctuation" > )< / span > < span class = "token punctuation" > .< / span >
< span class = "token function" > Resource< / span > < span class = "token punctuation" > (< / span > < span class = "token string" > " configmaps" < / span > < span class = "token punctuation" > )< / span > < span class = "token punctuation" > .< / span >
< span class = "token function" > Body< / span > < span class = "token punctuation" > (< / span > configMap< span class = "token punctuation" > )< / span > < span class = "token punctuation" > .< / span >
< span class = "token function" > Do< / span > < span class = "token punctuation" > (< / span > < span class = "token punctuation" > )< / span > < span class = "token punctuation" > .< / span >
< span class = "token function" > Into< / span > < span class = "token punctuation" > (< / span > result< span class = "token punctuation" > )< / span >
< span class = "token keyword" > return< / span >
< span class = "token punctuation" > }< / span >
< / code > < / pre >
< p > 通 过 RESTful 请 求 在 etcd 中 存 储 ConfigMap 的 配 置 ， 该 方 法 中 设 置 了 资 源 对 象 的 namespace 和 HTTP 请 求 中 的 body， 执 行 后 将 请 求 结 果 保 存 到 result 中 返 回 给 调 用 者 。 < / p >
< p > < strong > 注 意 Body 的 结 构 < / strong > < / p >
< pre class = "language-" > < code class = "lang-java" > < span class = "token comment" > // Body makes the request use obj as the body. Optional.< / span >
< span class = "token comment" > // If obj is a string, try to read a file of that name.< / span >
< span class = "token comment" > // If obj is a []byte, send it directly.< / span >
< span class = "token comment" > // If obj is an io.Reader, use it directly.< / span >
< span class = "token comment" > // If obj is a runtime.Object, marshal it correctly, and set Content-Type header.< / span >
< span class = "token comment" > // If obj is a runtime.Object and nil, do nothing.< / span >
< span class = "token comment" > // Otherwise, set an error.< / span >
< / code > < / pre >
< p > 创 建 ConfigMap RESTful 请 求 中 的 的 Body 中 包 含 < code > ObjectMeta< / code > 和 < code > namespace< / code > 。 < / p >
< p > HTTP 请 求 中 的 结 构 体 ： < / p >
< pre class = "language-" > < code class = "lang-go" > < span class = "token comment" > // Request allows for building up a request to a server in a chained fashion.< / span >
< span class = "token comment" > // Any errors are stored until the end of your call, so you only have to< / span >
< span class = "token comment" > // check once.< / span >
< span class = "token keyword" > type< / span > Request < span class = "token keyword" > struct< / span > < span class = "token punctuation" > {< / span >
< span class = "token comment" > // required< / span >
client HTTPClient
verb < span class = "token builtin" > string< / span >
baseURL < span class = "token operator" > *< / span > url< span class = "token punctuation" > .< / span > URL
content ContentConfig
serializers Serializers
< span class = "token comment" > // generic components accessible via method setters< / span >
pathPrefix < span class = "token builtin" > string< / span >
subpath < span class = "token builtin" > string< / span >
params url< span class = "token punctuation" > .< / span > Values
headers http< span class = "token punctuation" > .< / span > Header
< span class = "token comment" > // structural elements of the request that are part of the Kubernetes API conventions< / span >
namespace < span class = "token builtin" > string< / span >
namespaceSet < span class = "token builtin" > bool< / span >
resource < span class = "token builtin" > string< / span >
resourceName < span class = "token builtin" > string< / span >
subresource < span class = "token builtin" > string< / span >
timeout time< span class = "token punctuation" > .< / span > Duration
< span class = "token comment" > // output< / span >
err < span class = "token builtin" > error< / span >
body io< span class = "token punctuation" > .< / span > Reader
< span class = "token comment" > // This is only used for per-request timeouts, deadlines, and cancellations.< / span >
ctx context< span class = "token punctuation" > .< / span > Context
backoffMgr BackoffManager
throttle flowcontrol< span class = "token punctuation" > .< / span > RateLimiter
< span class = "token punctuation" > }< / span >
< / code > < / pre >
< h2 id = "测试" > 测 试 < / h2 >
< p > 分 别 测 试 使 用 ConfigMap 挂 载 Env 和 Volume 的 情 况 。 < / p >
< h3 id = "更新使用configmap挂载的env" > 更 新 使 用 ConfigMap挂 载 的 Env< / h3 >
< p > 使 用 下 面 的 配 置 创 建 nginx 容 器 测 试 更 新 ConfigMap 后 容 器 内 的 环 境 变 量 是 否 也 跟 着 更 新 。 < / p >
< pre class = "language-" > < code class = "lang-yaml" > < span class = "token key atrule" > apiVersion< / span > < span class = "token punctuation" > :< / span > extensions/v1beta1
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > Deployment
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > my< span class = "token punctuation" > -< / span > nginx
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > replicas< / span > < span class = "token punctuation" > :< / span > < span class = "token number" > 1< / span >
< span class = "token key atrule" > template< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > labels< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > run< / span > < span class = "token punctuation" > :< / span > my< span class = "token punctuation" > -< / span > nginx
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > containers< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > my< span class = "token punctuation" > -< / span > nginx
< span class = "token key atrule" > image< / span > < span class = "token punctuation" > :< / span > harbor< span class = "token punctuation" > -< / span > 001.jimmysong.io/library/nginx< span class = "token punctuation" > :< / span > < span class = "token number" > 1.9< / span >
< span class = "token key atrule" > ports< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > containerPort< / span > < span class = "token punctuation" > :< / span > < span class = "token number" > 80< / span >
< span class = "token key atrule" > envFrom< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > configMapRef< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > env< span class = "token punctuation" > -< / span > config
< span class = "token punctuation" > ---< / span >
< 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 > ConfigMap
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > env< span class = "token punctuation" > -< / span > config
< span class = "token key atrule" > namespace< / span > < span class = "token punctuation" > :< / span > default
< span class = "token key atrule" > data< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > log_level< / span > < span class = "token punctuation" > :< / span > INFO
< / code > < / pre >
< p > 获 取 环 境 变 量 的 值 < / p >
< pre class = "language-" > < code class = "lang-bash" > $ kubectl < span class = "token builtin class-name" > exec< / span > < span class = "token variable" > < span class = "token variable" > `< / span > kubectl get pods -l < span class = "token assign-left variable" > run< / span > < span class = "token operator" > =< / span > my-nginx -o< span class = "token operator" > =< / span > name< span class = "token operator" > |< / span > < span class = "token function" > cut< / span > -d < span class = "token string" > " /" < / span > -f2< span class = "token variable" > `< / span > < / span > < span class = "token function" > env< / span > < span class = "token operator" > |< / span > < span class = "token function" > grep< / span > log_level
< span class = "token assign-left variable" > log_level< / span > < span class = "token operator" > =< / span > INFO
< / code > < / pre >
< p > 修 改 ConfigMap< / p >
< pre class = "language-" > < code class = "lang-bash" > $ kubectl edit configmap env-config
< / code > < / pre >
< p > 修 改 < code > log_level< / code > 的 值 为 < code > DEBUG< / code > 。 < / p >
< p > 再 次 查 看 环 境 变 量 的 值 。 < / p >
< pre class = "language-" > < code class = "lang-bash" > $ kubectl < span class = "token builtin class-name" > exec< / span > < span class = "token variable" > < span class = "token variable" > `< / span > kubectl get pods -l < span class = "token assign-left variable" > run< / span > < span class = "token operator" > =< / span > my-nginx -o< span class = "token operator" > =< / span > name< span class = "token operator" > |< / span > < span class = "token function" > cut< / span > -d < span class = "token string" > " /" < / span > -f2< span class = "token variable" > `< / span > < / span > < span class = "token function" > env< / span > < span class = "token operator" > |< / span > < span class = "token function" > grep< / span > log_level
< span class = "token assign-left variable" > log_level< / span > < span class = "token operator" > =< / span > INFO
< / code > < / pre >
< p > 实 践 证 明 修 改 ConfigMap 无 法 更 新 容 器 中 已 注 入 的 环 境 变 量 信 息 。 < / p >
< h3 id = "更新使用configmap挂载的volume" > 更 新 使 用 ConfigMap挂 载 的 Volume< / h3 >
< p > 使 用 下 面 的 配 置 创 建 nginx 容 器 测 试 更 新 ConfigMap 后 容 器 内 挂 载 的 文 件 是 否 也 跟 着 更 新 。 < / p >
< pre class = "language-" > < code class = "lang-yaml" > < span class = "token key atrule" > apiVersion< / span > < span class = "token punctuation" > :< / span > extensions/v1beta1
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > Deployment
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > my< span class = "token punctuation" > -< / span > nginx
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > replicas< / span > < span class = "token punctuation" > :< / span > < span class = "token number" > 1< / span >
< span class = "token key atrule" > template< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > labels< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > run< / span > < span class = "token punctuation" > :< / span > my< span class = "token punctuation" > -< / span > nginx
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > containers< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > my< span class = "token punctuation" > -< / span > nginx
< span class = "token key atrule" > image< / span > < span class = "token punctuation" > :< / span > harbor< span class = "token punctuation" > -< / span > 001.jimmysong.io/library/nginx< span class = "token punctuation" > :< / span > < span class = "token number" > 1.9< / span >
< span class = "token key atrule" > ports< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > containerPort< / span > < span class = "token punctuation" > :< / span > < span class = "token number" > 80< / 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 > config< span class = "token punctuation" > -< / span > volume
< span class = "token key atrule" > mountPath< / span > < span class = "token punctuation" > :< / span > /etc/config
< 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 > config< span class = "token punctuation" > -< / span > volume
< span class = "token key atrule" > configMap< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > special< span class = "token punctuation" > -< / span > config
< span class = "token punctuation" > ---< / span >
< 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 > ConfigMap
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > special< span class = "token punctuation" > -< / span > config
< span class = "token key atrule" > namespace< / span > < span class = "token punctuation" > :< / span > default
< span class = "token key atrule" > data< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > log_level< / span > < span class = "token punctuation" > :< / span > INFO
< / code > < / pre >
< pre class = "language-" > < code class = "lang-bash" > $ kubectl < span class = "token builtin class-name" > exec< / span > < span class = "token variable" > < span class = "token variable" > `< / span > kubectl get pods -l < span class = "token assign-left variable" > run< / span > < span class = "token operator" > =< / span > my-nginx -o< span class = "token operator" > =< / span > name< span class = "token operator" > |< / span > < span class = "token function" > cut< / span > -d < span class = "token string" > " /" < / span > -f2< span class = "token variable" > `< / span > < / span > < span class = "token function" > cat< / span > /etc/config/log_level
INFO
< / code > < / pre >
< p > 修 改 ConfigMap< / p >
< pre class = "language-" > < code class = "lang-bash" > $ kubectl edit configmap special-config
< / code > < / pre >
< p > 修 改 < code > log_level< / code > 的 值 为 < code > DEBUG< / code > 。 < / p >
< p > 等 待 大 概 10秒 钟 时 间 ， 再 次 查 看 环 境 变 量 的 值 。 < / p >
< pre class = "language-" > < code class = "lang-bash" > $ kubectl < span class = "token builtin class-name" > exec< / span > < span class = "token variable" > < span class = "token variable" > `< / span > kubectl get pods -l < span class = "token assign-left variable" > run< / span > < span class = "token operator" > =< / span > my-nginx -o< span class = "token operator" > =< / span > name< span class = "token operator" > |< / span > < span class = "token function" > cut< / span > -d < span class = "token string" > " /" < / span > -f2< span class = "token variable" > `< / span > < / span > < span class = "token function" > cat< / span > /tmp/log_level
DEBUG
< / code > < / pre >
< p > 我 们 可 以 看 到 使 用 ConfigMap 方 式 挂 载 的 Volume 的 文 件 中 的 内 容 已 经 变 成 了 < code > DEBUG< / code > 。 < / p >
< p > Known Issue：
如 果 使 用 ConfigMap的 < strong > subPath< / strong > 挂 载 为 Container的 Volume， Kubernetes不 会 做 自 动 热 更 新 :
< a href = "https://kubernetes.io/docs/tasks/configure-pod-container/configure-pod-configmap/#mounted-configmaps-are-updated-automatically" target = "_blank" > https://kubernetes.io/docs/tasks/configure-pod-container/configure-pod-configmap/#mounted-configmaps-are-updated-automatically< / a > < / p >
< h2 id = "configmap-更新后滚动更新-pod" > ConfigMap 更 新 后 滚 动 更 新 Pod< / h2 >
< p > 更 新 ConfigMap 目 前 并 不 会 触 发 相 关 Pod 的 滚 动 更 新 ， 可 以 通 过 修 改 pod annotations 的 方 式 强 制 触 发 滚 动 更 新 。 < / p >
< pre class = "language-" > < code class = "lang-bash" > $ kubectl patch deployment my-nginx --patch < span class = "token string" > ' {" spec" : {" template" : {" metadata" : {" annotations" : {" version/config" : " 20180411" }}}}}' < / span >
< / code > < / pre >
< p > 这 个 例 子 里 我 们 在 < code > .spec.template.metadata.annotations< / code > 中 添 加 < code > version/config< / code > ， 每 次 通 过 修 改 < code > version/config< / code > 来 触 发 滚 动 更 新 。 < / p >
< h2 id = "总结" > 总 结 < / h2 >
< p > 更 新 ConfigMap 后 ： < / p >
< ul >
< li > 使 用 该 ConfigMap 挂 载 的 Env < strong > 不 会 < / strong > 同 步 更 新 < / li >
< li > 使 用 该 ConfigMap 挂 载 的 Volume 中 的 数 据 需 要 一 段 时 间 （ 实 测 大 概 10秒 ） 才 能 同 步 更 新 < / li >
< / ul >
< p > ENV 是 在 容 器 启 动 的 时 候 注 入 的 ， 启 动 之 后 kubernetes 就 不 会 再 改 变 环 境 变 量 的 值 ， 且 同 一 个 namespace 中 的 pod 的 环 境 变 量 是 不 断 累 加 的 ， 参 考 < a href = "https://jimmysong.io/posts/exploring-kubernetes-env-with-docker/" target = "_blank" > Kubernetes中 的 服 务 发 现 与 docker容 器 间 的 环 境 变 量 传 递 源 码 探 究 < / a > 。 为 了 更 新 容 器 中 使 用 ConfigMap 挂 载 的 配 置 ， 需 要 通 过 滚 动 更 新 pod 的 方 式 来 强 制 重 新 挂 载 ConfigMap。 < / p >
< h2 id = "参考" > 参 考 < / h2 >
< ul >
< li > < a href = "https://acotten.com/post/kube17-security" target = "_blank" > Kubernetes 1.7 security in practice< / a > < / li >
< li > < a href = "https://jimmysong.io/kubernetes-handbook/concepts/configmap.html" target = "_blank" > ConfigMap | kubernetes handbook - jimmysong.io< / a > < / li >
< li > < a href = "https://jimmysong.io/kubernetes-handbook/practice/etcd-cluster-installation.html" target = "_blank" > 创 建 高 可 用 ectd集 群 | Kubernetes handbook - jimmysong.io< / a > < / li >
< li > < a href = "https://jimmysong.io/posts/exploring-kubernetes-env-with-docker/" target = "_blank" > Kubernetes中 的 服 务 发 现 与 docker容 器 间 的 环 境 变 量 传 递 源 码 探 究 < / a > < / li >
< / ul >
2020-11-18 19:26:50 +08:00
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