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< title > 使用 CRD 扩展 Kubernetes API · Kubernetes Handbook - Kubernetes中文指南/云原生应用架构实践手册 by Jimmy Song(宋净超)< / title >
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< a href = "https://jimmysong.io" target = "_blank" class = "custom-link" > 回到主页< / a >
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< a href = "https://jimmysong.io/awesome-cloud-native" target = "_blank" class = "custom-link" > Awesome Cloud Native< / a >
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< a href = "https://cloudnative.to" target = "_blank" class = "custom-link" > 云原生社区< / a >
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< a href = "https://cloudnativeindustryalliance.github.io/whitepaper2020/" target = "_blank" class = "custom-link" > 中国云原生发展白皮书2020< / a >
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< a href = "https://jimmysong.io/guide-to-cloud-native-app/" target = "_blank" class = "custom-link" > 云原生应用白皮书< / a >
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< li class = "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 >
< li class = "chapter " data-level = "2.3" data-path = "../cloud-native/play-with-kubernetes.html" >
< a href = "../cloud-native/play-with-kubernetes.html" >
< b > 2.3.< / b >
Play with Kubernetes
< / a >
< / li >
< li class = "chapter " data-level = "2.4" data-path = "../cloud-native/cloud-native-local-quick-start.html" >
< a href = "../cloud-native/cloud-native-local-quick-start.html" >
< b > 2.4.< / b >
快速部署一个云原生本地实验环境
< / a >
< / li >
< li class = "chapter " data-level = "2.5" data-path = "../cloud-native/setup-kubernetes-with-rancher-and-aliyun.html" >
< a href = "../cloud-native/setup-kubernetes-with-rancher-and-aliyun.html" >
< b > 2.5.< / b >
使用 Rancher 在阿里云上部署 Kubenretes 集群
< / a >
< / li >
< li class = "chapter " data-level = "2.6" data-path = "../cloud-native/kubernetes-and-cloud-native-app-overview.html" >
< a href = "../cloud-native/kubernetes-and-cloud-native-app-overview.html" >
< b > 2.6.< / b >
Kubernetes 与云原生应用概览
< / a >
< / li >
< li class = "chapter " data-level = "2.7" data-path = "../cloud-native/from-kubernetes-to-cloud-native.html" >
< a href = "../cloud-native/from-kubernetes-to-cloud-native.html" >
< b > 2.7.< / b >
云原生应用之路 —— 从 Kubernetes 到 Cloud Native
< / a >
< / li >
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< li class = "chapter " data-level = "2.8" 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 > 2.8.< / 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 = "2.8.1" data-path = "../cloud-native/oam.html" >
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< a href = "../cloud-native/oam.html" >
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< b > 2.8.1.< / 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 = "2.8.1.1" data-path = "../cloud-native/workload.html" >
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< a href = "../cloud-native/workload.html" >
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< b > 2.8.1.1.< / b >
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Workload
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< / a >
< / li >
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< li class = "chapter " data-level = "2.8.1.2" data-path = "../cloud-native/component.html" >
< a href = "../cloud-native/component.html" >
< b > 2.8.1.2.< / b >
Component
< / a >
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< / li >
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< li class = "chapter " data-level = "2.8.1.3" data-path = "../cloud-native/trait.html" >
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< a href = "../cloud-native/trait.html" >
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< b > 2.8.1.3.< / b >
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Trait
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< / a >
< / li >
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< li class = "chapter " data-level = "2.8.1.4" data-path = "../cloud-native/application-scope.html" >
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< a href = "../cloud-native/application-scope.html" >
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< b > 2.8.1.4.< / 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 = "2.8.1.5" data-path = "../cloud-native/application-configuration.html" >
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< a href = "../cloud-native/application-configuration.html" >
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< b > 2.8.1.5.< / b >
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Application Configuration
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< / li >
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< li class = "chapter " data-level = "2.8.2" data-path = "../cloud-native/crossplane.html" >
< a href = "../cloud-native/crossplane.html" >
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< b > 2.8.2.< / b >
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Crossplane
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< / li >
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< / li >
< li class = "chapter " data-level = "2.9" data-path = "../cloud-native/cloud-native-programming-languages.html" >
< a href = "../cloud-native/cloud-native-programming-languages.html" >
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< b > 2.9.< / 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 = "2.9.1" 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 > 2.9.1.< / 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 = "2.9.2" 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 > 2.9.2.< / 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 = "2.10" data-path = "../cloud-native/the-future-of-cloud-native.html" >
< a href = "../cloud-native/the-future-of-cloud-native.html" >
< b > 2.10.< / b >
云原生的未来
< / a >
< / li >
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< li class = "header" > 概念与原理< / li >
< li class = "chapter " data-level = "3.1" data-path = "./" >
< a href = "./" >
< b > 3.1.< / b >
Kubernetes 架构
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.1.1" data-path = "concepts.html" >
< a href = "concepts.html" >
< b > 3.1.1.< / b >
设计理念
< / a >
< / li >
< li class = "chapter " data-level = "3.1.2" data-path = "etcd.html" >
< a href = "etcd.html" >
< b > 3.1.2.< / b >
Etcd 解析
< / a >
< / li >
< li class = "chapter " data-level = "3.1.3" data-path = "open-interfaces.html" >
< a href = "open-interfaces.html" >
< b > 3.1.3.< / b >
开放接口
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.1.3.1" data-path = "cri.html" >
< a href = "cri.html" >
< b > 3.1.3.1.< / b >
CRI - Container Runtime Interface（ ）
< / 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 >
< / 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 >
< / li >
< / ul >
< / 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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< ul class = "articles" >
< li class = "chapter " data-level = "3.4.1" data-path = "pod-overview.html" >
< a href = "pod-overview.html" >
< b > 3.4.1.< / b >
Pod 概览
< / 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 >
< li class = "chapter " data-level = "3.4.5" data-path = "pod-security-policy.html" >
< a href = "pod-security-policy.html" >
< b > 3.4.5.< / b >
Pod 安全策略
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< / li >
< li class = "chapter " data-level = "3.4.6" data-path = "pod-lifecycle.html" >
< a href = "pod-lifecycle.html" >
< b > 3.4.6.< / b >
Pod 的生命周期
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< / li >
< li class = "chapter " data-level = "3.4.7" data-path = "pod-hook.html" >
< a href = "pod-hook.html" >
< b > 3.4.7.< / b >
Pod Hook
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< / li >
< li class = "chapter " data-level = "3.4.8" data-path = "pod-preset.html" >
< a href = "pod-preset.html" >
< b > 3.4.8.< / b >
Pod Preset
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< / li >
< 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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< ul class = "articles" >
< li class = "chapter " data-level = "3.5.1" data-path = "node.html" >
< a href = "node.html" >
< b > 3.5.1.< / b >
Node
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< li class = "chapter " data-level = "3.5.2" data-path = "namespace.html" >
< a href = "namespace.html" >
< b > 3.5.2.< / b >
Namespace
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< li class = "chapter " data-level = "3.5.3" data-path = "label.html" >
< a href = "label.html" >
< b > 3.5.3.< / b >
Label
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< li class = "chapter " data-level = "3.5.4" data-path = "annotation.html" >
< 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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< li class = "chapter " data-level = "3.6" data-path = "controllers.html" >
< a href = "controllers.html" >
< b > 3.6.< / b >
控制器
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< li class = "chapter " data-level = "3.6.1" data-path = "deployment.html" >
< a href = "deployment.html" >
< b > 3.6.1.< / b >
Deployment
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< li class = "chapter " data-level = "3.6.2" data-path = "statefulset.html" >
< a href = "statefulset.html" >
< b > 3.6.2.< / b >
StatefulSet
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< li 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
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< li class = "chapter " data-level = "3.6.5" data-path = "job.html" >
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< b > 3.6.5.< / b >
Job
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< li class = "chapter " data-level = "3.6.6" data-path = "cronjob.html" >
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< b > 3.6.6.< / b >
CronJob
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< 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
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< 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
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< b > 3.6.8.< / b >
准入控制器（ ）
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< li class = "chapter " data-level = "3.7" data-path = "service-discovery.html" >
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< b > 3.7.< / b >
服务发现
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.7.1" data-path = "service.html" >
< a href = "service.html" >
< b > 3.7.1.< / b >
Service
< / a >
< / li >
< li class = "chapter " data-level = "3.7.2" data-path = "ingress.html" >
< a href = "ingress.html" >
< b > 3.7.2.< / b >
Ingress
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.7.2.1" data-path = "traefik-ingress-controller.html" >
< a href = "traefik-ingress-controller.html" >
< b > 3.7.2.1.< / b >
Traefik Ingress Controller
< / a >
< / li >
< / ul >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "3.8" data-path = "authentication-and-permission.html" >
< a href = "authentication-and-permission.html" >
< b > 3.8.< / b >
身份与权限控制
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.8.1" data-path = "serviceaccount.html" >
< a href = "serviceaccount.html" >
< b > 3.8.1.< / b >
ServiceAccount
< / a >
< / li >
< li class = "chapter " data-level = "3.8.2" data-path = "rbac.html" >
< a href = "rbac.html" >
< b > 3.8.2.< / b >
RBAC—— 基于角色的访问控制
< / a >
< / li >
< li class = "chapter " data-level = "3.8.3" data-path = "network-policy.html" >
< a href = "network-policy.html" >
< b > 3.8.3.< / b >
NetworkPolicy
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "3.9" data-path = "storage.html" >
< a href = "storage.html" >
< b > 3.9.< / b >
存储
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.9.1" data-path = "secret.html" >
< a href = "secret.html" >
< b > 3.9.1.< / b >
Secret
< / a >
< / li >
< li class = "chapter " data-level = "3.9.2" data-path = "configmap.html" >
< a href = "configmap.html" >
< b > 3.9.2.< / b >
ConfigMap
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.9.2.1" data-path = "configmap-hot-update.html" >
< a href = "configmap-hot-update.html" >
< b > 3.9.2.1.< / b >
ConfigMap 的热更新
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "3.9.3" data-path = "volume.html" >
< a href = "volume.html" >
< b > 3.9.3.< / b >
Volume
< / a >
< / li >
< li class = "chapter " 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 active" data-level = "3.10.2" data-path = "crd.html" >
< a href = "crd.html" >
< b > 3.10.2.< / b >
使用 CRD 扩展 Kubernetes API
< / a >
< / li >
< li class = "chapter " data-level = "3.10.3" data-path = "aggregated-api-server.html" >
< a href = "aggregated-api-server.html" >
< b > 3.10.3.< / b >
Aggregated API Server
< / a >
< / li >
< li class = "chapter " data-level = "3.10.4" data-path = "apiservice.html" >
< a href = "apiservice.html" >
< b > 3.10.4.< / b >
APIService
< / a >
< / li >
< li class = "chapter " data-level = "3.10.5" data-path = "service-catalog.html" >
< a href = "service-catalog.html" >
< b > 3.10.5.< / b >
Service Catalog
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "3.11" data-path = "scheduling.html" >
< a href = "scheduling.html" >
< b > 3.11.< / b >
资源调度
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "3.11.1" data-path = "qos.html" >
< a href = "qos.html" >
< b > 3.11.1.< / b >
QoS（ ）
< / a >
< / li >
< / ul >
< / li >
< li class = "header" > 用户指南< / li >
< li class = "chapter " data-level = "4.1" data-path = "../guide/" >
< a href = "../guide/" >
< b > 4.1.< / b >
用户指南
< / a >
< / li >
< li class = "chapter " data-level = "4.2" data-path = "../guide/resource-configuration.html" >
< a href = "../guide/resource-configuration.html" >
< b > 4.2.< / b >
资源对象配置
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "4.2.1" data-path = "../guide/configure-liveness-readiness-probes.html" >
< a href = "../guide/configure-liveness-readiness-probes.html" >
< b > 4.2.1.< / b >
配置 Pod 的 liveness 和 readiness 探针
< / a >
< / li >
< li class = "chapter " data-level = "4.2.2" data-path = "../guide/configure-pod-service-account.html" >
< a href = "../guide/configure-pod-service-account.html" >
< b > 4.2.2.< / b >
配置 Pod 的 Service Account
< / a >
< / li >
< li class = "chapter " data-level = "4.2.3" data-path = "../guide/secret-configuration.html" >
< a href = "../guide/secret-configuration.html" >
< b > 4.2.3.< / b >
Secret 配置
< / a >
< / li >
< li class = "chapter " data-level = "4.2.4" data-path = "../guide/resource-quota-management.html" >
< a href = "../guide/resource-quota-management.html" >
< b > 4.2.4.< / b >
管理 namespace 中的资源配额
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "4.3" data-path = "../guide/command-usage.html" >
< a href = "../guide/command-usage.html" >
< b > 4.3.< / b >
命令使用
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "4.3.1" data-path = "../guide/docker-cli-to-kubectl.html" >
< a href = "../guide/docker-cli-to-kubectl.html" >
< b > 4.3.1.< / b >
Docker 用户过渡到 kubectl 命令行指南
< / a >
< / li >
< li class = "chapter " data-level = "4.3.2" data-path = "../guide/using-kubectl.html" >
< a href = "../guide/using-kubectl.html" >
< b > 4.3.2.< / b >
kubectl 命令概览
< / a >
< / li >
< li class = "chapter " data-level = "4.3.3" data-path = "../guide/kubectl-cheatsheet.html" >
< a href = "../guide/kubectl-cheatsheet.html" >
< b > 4.3.3.< / b >
kubectl 命令技巧大全
< / a >
< / li >
< li class = "chapter " data-level = "4.3.4" data-path = "../guide/using-etcdctl-to-access-kubernetes-data.html" >
< a href = "../guide/using-etcdctl-to-access-kubernetes-data.html" >
< b > 4.3.4.< / b >
使用 etcdctl 访问 kubernetes 数据
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "4.4" data-path = "../guide/cluster-security-management.html" >
< a href = "../guide/cluster-security-management.html" >
< b > 4.4.< / b >
集群安全性管理
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "4.4.1" data-path = "../guide/managing-tls-in-a-cluster.html" >
< a href = "../guide/managing-tls-in-a-cluster.html" >
< b > 4.4.1.< / b >
管理集群中的 TLS
< / a >
< / li >
< li class = "chapter " data-level = "4.4.2" data-path = "../guide/kubelet-authentication-authorization.html" >
< a href = "../guide/kubelet-authentication-authorization.html" >
< b > 4.4.2.< / b >
kubelet 的认证授权
< / a >
< / li >
< li class = "chapter " data-level = "4.4.3" data-path = "../guide/tls-bootstrapping.html" >
< a href = "../guide/tls-bootstrapping.html" >
< b > 4.4.3.< / b >
TLS bootstrap
< / a >
< / li >
< li class = "chapter " data-level = "4.4.4" data-path = "../guide/kubectl-user-authentication-authorization.html" >
< a href = "../guide/kubectl-user-authentication-authorization.html" >
< b > 4.4.4.< / b >
创建用户认证授权的 kubeconfig 文件
< / a >
< / li >
< li class = "chapter " data-level = "4.4.5" data-path = "../guide/ip-masq-agent.html" >
< a href = "../guide/ip-masq-agent.html" >
< b > 4.4.5.< / b >
IP 伪装代理
< / a >
< / li >
< li class = "chapter " data-level = "4.4.6" data-path = "../guide/auth-with-kubeconfig-or-token.html" >
< a href = "../guide/auth-with-kubeconfig-or-token.html" >
< b > 4.4.6.< / b >
使用 kubeconfig 或 token 进行用户身份认证
< / a >
< / li >
< li class = "chapter " data-level = "4.4.7" data-path = "../guide/authentication.html" >
< a href = "../guide/authentication.html" >
< b > 4.4.7.< / b >
Kubernetes 中的用户与身份认证授权
< / a >
< / li >
< li class = "chapter " data-level = "4.4.8" data-path = "../guide/kubernetes-security-best-practice.html" >
< a href = "../guide/kubernetes-security-best-practice.html" >
< b > 4.4.8.< / b >
Kubernetes 集群安全性配置最佳实践
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "4.5" data-path = "../guide/access-kubernetes-cluster.html" >
< a href = "../guide/access-kubernetes-cluster.html" >
< b > 4.5.< / b >
访问 Kubernetes 集群
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "4.5.1" data-path = "../guide/access-cluster.html" >
< a href = "../guide/access-cluster.html" >
< b > 4.5.1.< / b >
访问集群
< / a >
< / li >
< li class = "chapter " data-level = "4.5.2" data-path = "../guide/authenticate-across-clusters-kubeconfig.html" >
< a href = "../guide/authenticate-across-clusters-kubeconfig.html" >
< b > 4.5.2.< / b >
使用 kubeconfig 文件配置跨集群认证
< / a >
< / li >
< li class = "chapter " data-level = "4.5.3" data-path = "../guide/connecting-to-applications-port-forward.html" >
< a href = "../guide/connecting-to-applications-port-forward.html" >
< b > 4.5.3.< / b >
通过端口转发访问集群中的应用程序
< / a >
< / li >
< li class = "chapter " data-level = "4.5.4" data-path = "../guide/service-access-application-cluster.html" >
< a href = "../guide/service-access-application-cluster.html" >
< b > 4.5.4.< / b >
使用 service 访问群集中的应用程序
< / a >
< / li >
< li class = "chapter " data-level = "4.5.5" data-path = "../guide/accessing-kubernetes-pods-from-outside-of-the-cluster.html" >
< a href = "../guide/accessing-kubernetes-pods-from-outside-of-the-cluster.html" >
< b > 4.5.5.< / b >
从外部访问 Kubernetes 中的 Pod
< / a >
< / li >
< li class = "chapter " data-level = "4.5.6" data-path = "../guide/cabin-mobile-dashboard-for-kubernetes.html" >
< a href = "../guide/cabin-mobile-dashboard-for-kubernetes.html" >
< b > 4.5.6.< / b >
Cabin - Kubernetes 手机客户端
< / a >
< / li >
< li class = "chapter " data-level = "4.5.7" data-path = "../guide/kubernetes-desktop-client.html" >
< a href = "../guide/kubernetes-desktop-client.html" >
< b > 4.5.7.< / b >
Kubernetic - Kubernetes 桌面客户端
< / a >
< / li >
< li class = "chapter " data-level = "4.5.8" data-path = "../guide/kubernator-kubernetes-ui.html" >
< a href = "../guide/kubernator-kubernetes-ui.html" >
< b > 4.5.8.< / b >
Kubernator - 更底层的 Kubernetes UI
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "4.6" data-path = "../guide/application-development-deployment-flow.html" >
< a href = "../guide/application-development-deployment-flow.html" >
< b > 4.6.< / b >
在 Kubernetes 中开发部署应用
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "4.6.1" data-path = "../guide/deploy-applications-in-kubernetes.html" >
< a href = "../guide/deploy-applications-in-kubernetes.html" >
< b > 4.6.1.< / b >
适用于 kubernetes 的应用开发部署流程
< / a >
< / li >
< li class = "chapter " data-level = "4.6.2" data-path = "../guide/migrating-hadoop-yarn-to-kubernetes.html" >
< a href = "../guide/migrating-hadoop-yarn-to-kubernetes.html" >
< b > 4.6.2.< / b >
迁移传统应用到 Kubernetes 中 —— 以 Hadoop YARN 为例
< / a >
< / li >
< li class = "chapter " data-level = "4.6.3" data-path = "../guide/using-statefulset.html" >
< a href = "../guide/using-statefulset.html" >
< b > 4.6.3.< / b >
使用 StatefulSet 部署用状态应用
< / a >
< / li >
< / ul >
< / li >
< li class = "header" > 最佳实践< / li >
< li class = "chapter " data-level = "5.1" data-path = "../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 >
< li class = "chapter " data-level = "6.3" data-path = "../usecases/service-mesh.html" >
< a href = "../usecases/service-mesh.html" >
< b > 6.3.< / b >
Service Mesh 服务网格
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.3.1" data-path = "../usecases/the-enterprise-path-to-service-mesh-architectures.html" >
< a href = "../usecases/the-enterprise-path-to-service-mesh-architectures.html" >
< b > 6.3.1.< / b >
企业级服务网格架构
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.3.1.1" data-path = "../usecases/service-mesh-fundamental.html" >
< a href = "../usecases/service-mesh-fundamental.html" >
< b > 6.3.1.1.< / b >
Service Mesh 基础
< / a >
< / li >
< li class = "chapter " data-level = "6.3.1.2" data-path = "../usecases/comparing-service-mesh-technologies.html" >
< a href = "../usecases/comparing-service-mesh-technologies.html" >
< b > 6.3.1.2.< / b >
Service Mesh 技术对比
< / a >
< / li >
< li class = "chapter " data-level = "6.3.1.3" data-path = "../usecases/service-mesh-adoption-and-evolution.html" >
< a href = "../usecases/service-mesh-adoption-and-evolution.html" >
< b > 6.3.1.3.< / b >
采纳和演进
< / a >
< / li >
< li class = "chapter " data-level = "6.3.1.4" data-path = "../usecases/service-mesh-customization-and-integration.html" >
< a href = "../usecases/service-mesh-customization-and-integration.html" >
< b > 6.3.1.4.< / b >
定制和集成
< / a >
< / li >
< li class = "chapter " data-level = "6.3.1.5" data-path = "../usecases/service-mesh-conclusion.html" >
< a href = "../usecases/service-mesh-conclusion.html" >
< b > 6.3.1.5.< / b >
总结
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "6.3.2" data-path = "../usecases/istio.html" >
< a href = "../usecases/istio.html" >
< b > 6.3.2.< / b >
Istio
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.3.2.1" data-path = "../usecases/istio-installation.html" >
< a href = "../usecases/istio-installation.html" >
< b > 6.3.2.1.< / b >
安装并试用 Istio service mesh
< / a >
< / li >
< li class = "chapter " data-level = "6.3.2.2" data-path = "../usecases/sidecar-spec-in-istio.html" >
< a href = "../usecases/sidecar-spec-in-istio.html" >
< b > 6.3.2.2.< / b >
Istio 中 sidecar 的注入规范及示例
< / a >
< / li >
< li class = "chapter " data-level = "6.3.2.3" data-path = "../usecases/istio-community-tips.html" >
< a href = "../usecases/istio-community-tips.html" >
< b > 6.3.2.3.< / b >
如何参与 Istio 社区及注意事项
< / a >
< / li >
< li class = "chapter " data-level = "6.3.2.4" data-path = "../usecases/istio-tutorials-collection.html" >
< a href = "../usecases/istio-tutorials-collection.html" >
< b > 6.3.2.4.< / b >
Istio 免费学习资源汇总
< / a >
< / li >
< li class = "chapter " data-level = "6.3.2.5" data-path = "../usecases/understand-sidecar-injection-and-traffic-hijack-in-istio-service-mesh.html" >
< a href = "../usecases/understand-sidecar-injection-and-traffic-hijack-in-istio-service-mesh.html" >
< b > 6.3.2.5.< / b >
Sidecar 的注入与流量劫持
< / a >
< / li >
< li class = "chapter " data-level = "6.3.2.6" data-path = "../usecases/envoy-sidecar-routing-of-istio-service-mesh-deep-dive.html" >
< a href = "../usecases/envoy-sidecar-routing-of-istio-service-mesh-deep-dive.html" >
< b > 6.3.2.6.< / b >
Envoy Sidecar 代理的路由转发
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "6.3.3" data-path = "../usecases/linkerd.html" >
< a href = "../usecases/linkerd.html" >
< b > 6.3.3.< / b >
Linkerd
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.3.3.1" data-path = "../usecases/linkerd-user-guide.html" >
< a href = "../usecases/linkerd-user-guide.html" >
< b > 6.3.3.1.< / b >
Linkerd 使用指南
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "6.3.4" data-path = "../usecases/conduit.html" >
< a href = "../usecases/conduit.html" >
< b > 6.3.4.< / b >
Conduit
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.3.4.1" data-path = "../usecases/conduit-overview.html" >
< a href = "../usecases/conduit-overview.html" >
< b > 6.3.4.1.< / b >
Condiut 概览
< / a >
< / li >
< li class = "chapter " data-level = "6.3.4.2" data-path = "../usecases/conduit-installation.html" >
< a href = "../usecases/conduit-installation.html" >
< b > 6.3.4.2.< / b >
安装 Conduit
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "6.3.5" data-path = "../usecases/envoy.html" >
< a href = "../usecases/envoy.html" >
< b > 6.3.5.< / b >
Envoy
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.3.5.1" data-path = "../usecases/envoy-terminology.html" >
< a href = "../usecases/envoy-terminology.html" >
< b > 6.3.5.1.< / b >
Envoy 的架构与基本术语
< / a >
< / li >
< li class = "chapter " data-level = "6.3.5.2" data-path = "../usecases/envoy-front-proxy.html" >
< a href = "../usecases/envoy-front-proxy.html" >
< b > 6.3.5.2.< / b >
Envoy 作为前端代理
< / a >
< / li >
< li class = "chapter " data-level = "6.3.5.3" data-path = "../usecases/envoy-mesh-in-kubernetes-tutorial.html" >
< a href = "../usecases/envoy-mesh-in-kubernetes-tutorial.html" >
< b > 6.3.5.3.< / b >
Envoy mesh 教程
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "6.3.6" data-path = "../usecases/mosn.html" >
< a href = "../usecases/mosn.html" >
< b > 6.3.6.< / b >
MOSN
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "6.4" data-path = "../usecases/big-data.html" >
< a href = "../usecases/big-data.html" >
< b > 6.4.< / b >
大数据
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.4.1" data-path = "../usecases/spark-standalone-on-kubernetes.html" >
< a href = "../usecases/spark-standalone-on-kubernetes.html" >
< b > 6.4.1.< / b >
Spark standalone on Kubernetes
< / a >
< / li >
< li class = "chapter " data-level = "6.4.2" data-path = "../usecases/running-spark-with-kubernetes-native-scheduler.html" >
< a href = "../usecases/running-spark-with-kubernetes-native-scheduler.html" >
< b > 6.4.2.< / b >
运行支持 Kubernetes 原生调度的 Spark 程序
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "6.5" data-path = "../usecases/serverless.html" >
< a href = "../usecases/serverless.html" >
< b > 6.5.< / b >
Serverless 架构
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.5.1" data-path = "../usecases/understanding-serverless.html" >
< a href = "../usecases/understanding-serverless.html" >
< b > 6.5.1.< / b >
理解 Serverless
< / a >
< / li >
< li class = "chapter " data-level = "6.5.2" data-path = "../usecases/faas.html" >
< a href = "../usecases/faas.html" >
< b > 6.5.2.< / b >
FaaS（ ）
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "6.5.2.1" data-path = "../usecases/openfaas-quick-start.html" >
< a href = "../usecases/openfaas-quick-start.html" >
< b > 6.5.2.1.< / b >
OpenFaaS 快速入门指南
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "6.5.3" data-path = "../usecases/knative.html" >
< a href = "../usecases/knative.html" >
< b > 6.5.3.< / b >
Knative
< / a >
< / li >
< / ul >
< / li >
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< li class = "chapter " data-level = "6.6" data-path = "../usecases/edge-computing.html" >
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< a href = "../usecases/edge-computing.html" >
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< b > 6.6.< / b >
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边缘计算
< / a >
< / li >
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< li class = "chapter " data-level = "6.7" data-path = "../usecases/ai.html" >
2020-06-19 14:52:56 +08:00
< a href = "../usecases/ai.html" >
2020-06-24 16:47:22 +08:00
< b > 6.7.< / b >
2020-06-19 14:52:56 +08:00
人工智能
< / a >
< / li >
< li class = "header" > 开发指南< / li >
< li class = "chapter " data-level = "7.1" data-path = "../develop/" >
< a href = "../develop/" >
< b > 7.1.< / b >
开发指南概览
< / a >
< / li >
< li class = "chapter " data-level = "7.2" data-path = "../develop/sigs-and-working-group.html" >
< a href = "../develop/sigs-and-working-group.html" >
< b > 7.2.< / b >
SIG 和工作组
< / a >
< / li >
< li class = "chapter " data-level = "7.3" data-path = "../develop/developing-environment.html" >
< a href = "../develop/developing-environment.html" >
< b > 7.3.< / b >
开发环境搭建
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "7.3.1" data-path = "../develop/using-vagrant-and-virtualbox-for-development.html" >
< a href = "../develop/using-vagrant-and-virtualbox-for-development.html" >
< b > 7.3.1.< / b >
本地分布式开发环境搭建（使用 Vagrant 和 Virtualbox）
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "7.4" data-path = "../develop/testing.html" >
< a href = "../develop/testing.html" >
< b > 7.4.< / b >
单元测试和集成测试
< / a >
< / li >
< li class = "chapter " data-level = "7.5" data-path = "../develop/client-go-sample.html" >
< a href = "../develop/client-go-sample.html" >
< b > 7.5.< / b >
client-go 示例
< / a >
< / li >
< li class = "chapter " data-level = "7.6" data-path = "../develop/operator.html" >
< a href = "../develop/operator.html" >
< b > 7.6.< / b >
Operator
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "7.6.1" data-path = "../develop/operator-sdk.html" >
< a href = "../develop/operator-sdk.html" >
< b > 7.6.1.< / b >
operator-sdk
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "7.7" data-path = "../develop/kubebuilder.html" >
< a href = "../develop/kubebuilder.html" >
< b > 7.7.< / b >
kubebuilder
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "7.7.1" data-path = "../develop/kubebuilder-example.html" >
< a href = "../develop/kubebuilder-example.html" >
< b > 7.7.1.< / b >
使用 kubebuilder 创建 operator 示例
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "7.8" data-path = "../develop/advance-developer.html" >
< a href = "../develop/advance-developer.html" >
< b > 7.8.< / b >
高级开发指南
< / a >
< / li >
< li class = "chapter " data-level = "7.9" data-path = "../develop/contribute.html" >
< a href = "../develop/contribute.html" >
< b > 7.9.< / b >
社区贡献
< / a >
< / li >
< li class = "chapter " data-level = "7.10" data-path = "../develop/minikube.html" >
< a href = "../develop/minikube.html" >
< b > 7.10.< / b >
Minikube
< / a >
< / li >
< li class = "header" > CNCF（ ） < / li >
< li class = "chapter " data-level = "8.1" data-path = "../cloud-native/cncf.html" >
< a href = "../cloud-native/cncf.html" >
< b > 8.1.< / b >
CNCF - 云原生计算基金会简介
< / a >
< / li >
< li class = "chapter " data-level = "8.2" data-path = "../cloud-native/cncf-charter.html" >
< a href = "../cloud-native/cncf-charter.html" >
< b > 8.2.< / b >
CNCF 章程
< / a >
< / li >
< li class = "chapter " data-level = "8.3" data-path = "../cloud-native/cncf-sig.html" >
< a href = "../cloud-native/cncf-sig.html" >
< b > 8.3.< / b >
CNCF 特别兴趣小组（ ）
< / a >
< / li >
< li class = "chapter " data-level = "8.4" data-path = "../cloud-native/cncf-sandbox-criteria.html" >
< a href = "../cloud-native/cncf-sandbox-criteria.html" >
< b > 8.4.< / b >
开源项目加入 CNCF Sandbox 的要求
< / a >
< / li >
< li class = "chapter " data-level = "8.5" data-path = "../cloud-native/cncf-project-governing.html" >
< a href = "../cloud-native/cncf-project-governing.html" >
< b > 8.5.< / b >
CNCF 中的项目治理
< / a >
< / li >
< li class = "chapter " data-level = "8.6" data-path = "../cloud-native/cncf-ambassador.html" >
< a href = "../cloud-native/cncf-ambassador.html" >
< b > 8.6.< / b >
CNCF Ambassador
< / a >
< / li >
< li class = "header" > 附录< / li >
< li class = "chapter " data-level = "9.1" data-path = "../appendix/" >
< a href = "../appendix/" >
< b > 9.1.< / b >
附录说明
< / a >
< / li >
< li class = "chapter " data-level = "9.2" data-path = "../appendix/debug-kubernetes-services.html" >
< a href = "../appendix/debug-kubernetes-services.html" >
< b > 9.2.< / b >
Kubernetes 中的应用故障排查
< / a >
< / li >
< li class = "chapter " data-level = "9.3" data-path = "../appendix/material-share.html" >
< a href = "../appendix/material-share.html" >
< b > 9.3.< / b >
Kubernetes 相关资讯和情报链接
< / a >
< / li >
< li class = "chapter " data-level = "9.4" data-path = "../appendix/docker-best-practice.html" >
< a href = "../appendix/docker-best-practice.html" >
< b > 9.4.< / b >
Docker 最佳实践
< / a >
< / li >
< li class = "chapter " data-level = "9.5" data-path = "../appendix/tricks.html" >
< a href = "../appendix/tricks.html" >
< b > 9.5.< / b >
使用技巧
< / a >
< / li >
< li class = "chapter " data-level = "9.6" data-path = "../appendix/issues.html" >
< a href = "../appendix/issues.html" >
< b > 9.6.< / b >
问题记录
< / a >
< / li >
< li class = "chapter " data-level = "9.7" data-path = "../appendix/kubernetes-changelog.html" >
< a href = "../appendix/kubernetes-changelog.html" >
< b > 9.7.< / b >
Kubernetes 版本更新日志
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "9.7.1" data-path = "../appendix/kubernetes-1.7-changelog.html" >
< a href = "../appendix/kubernetes-1.7-changelog.html" >
< b > 9.7.1.< / b >
Kubernetes1.7 更新日志
< / a >
< / li >
< li class = "chapter " data-level = "9.7.2" data-path = "../appendix/kubernetes-1.8-changelog.html" >
< a href = "../appendix/kubernetes-1.8-changelog.html" >
< b > 9.7.2.< / b >
Kubernetes1.8 更新日志
< / a >
< / li >
< li class = "chapter " data-level = "9.7.3" data-path = "../appendix/kubernetes-1.9-changelog.html" >
< a href = "../appendix/kubernetes-1.9-changelog.html" >
< b > 9.7.3.< / b >
Kubernetes1.9 更新日志
< / a >
< / li >
< li class = "chapter " data-level = "9.7.4" data-path = "../appendix/kubernetes-1.10-changelog.html" >
< a href = "../appendix/kubernetes-1.10-changelog.html" >
< b > 9.7.4.< / b >
Kubernetes1.10 更新日志
< / a >
< / li >
< li class = "chapter " data-level = "9.7.5" data-path = "../appendix/kubernetes-1.11-changelog.html" >
< a href = "../appendix/kubernetes-1.11-changelog.html" >
< b > 9.7.5.< / b >
Kubernetes1.11 更新日志
< / a >
< / li >
< li class = "chapter " data-level = "9.7.6" data-path = "../appendix/kubernetes-1.12-changelog.html" >
< a href = "../appendix/kubernetes-1.12-changelog.html" >
< b > 9.7.6.< / b >
Kubernetes1.12 更新日志
< / a >
< / li >
< li class = "chapter " data-level = "9.7.7" data-path = "../appendix/kubernetes-1.13-changelog.html" >
< a href = "../appendix/kubernetes-1.13-changelog.html" >
< b > 9.7.7.< / b >
Kubernetes1.13 更新日志
< / a >
< / li >
< li class = "chapter " data-level = "9.7.8" data-path = "../appendix/kubernetes-1.14-changelog.html" >
< a href = "../appendix/kubernetes-1.14-changelog.html" >
< b > 9.7.8.< / b >
Kubernetes1.14 更新日志
< / a >
< / li >
< li class = "chapter " data-level = "9.7.9" data-path = "../appendix/kubernetes-1.15-changelog.html" >
< a href = "../appendix/kubernetes-1.15-changelog.html" >
< b > 9.7.9.< / b >
Kubernetes1.15 更新日志
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "9.8" data-path = "../appendix/summary-and-outlook.html" >
< a href = "../appendix/summary-and-outlook.html" >
< b > 9.8.< / b >
Kubernetes 及云原生年度总结及展望
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "9.8.1" data-path = "../appendix/kubernetes-and-cloud-native-summary-in-2017-and-outlook-for-2018.html" >
< a href = "../appendix/kubernetes-and-cloud-native-summary-in-2017-and-outlook-for-2018.html" >
< b > 9.8.1.< / b >
Kubernetes 与云原生 2017 年年终总结及 2018 年展望
< / a >
< / li >
< li class = "chapter " data-level = "9.8.2" data-path = "../appendix/kubernetes-and-cloud-native-summary-in-2018-and-outlook-for-2019.html" >
< a href = "../appendix/kubernetes-and-cloud-native-summary-in-2018-and-outlook-for-2019.html" >
< b > 9.8.2.< / b >
Kubernetes 与云原生 2018 年年终总结及 2019 年展望
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "9.9" data-path = "../appendix/cncf-annual-report.html" >
< a href = "../appendix/cncf-annual-report.html" >
< b > 9.9.< / b >
CNCF 年度报告解读
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "9.9.1" data-path = "../appendix/cncf-annual-report-2018.html" >
< a href = "../appendix/cncf-annual-report-2018.html" >
< b > 9.9.1.< / b >
CNCF 2018 年年度报告解读
< / a >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "9.10" data-path = "../appendix/about-kcsp.html" >
< a href = "../appendix/about-kcsp.html" >
< b > 9.10.< / b >
Kubernetes 认证服务提供商（ ）
< / a >
< / li >
< li class = "chapter " data-level = "9.11" data-path = "../appendix/about-cka-candidate.html" >
< a href = "../appendix/about-cka-candidate.html" >
< b > 9.11.< / b >
认证 Kubernetes 管理员（ ）
< / a >
< / li >
< li class = "divider" > < / li >
< li >
< a href = "https://www.gitbook.com" target = "blank" class = "gitbook-link" >
本书使用 GitBook 发布
< / a >
< / li >
< / ul >
< / nav >
< / div >
< div class = "book-body" >
< div class = "body-inner" >
< div class = "book-header" role = "navigation" >
<!-- Title -->
< h1 >
< i class = "fa fa-circle-o-notch fa-spin" > < / i >
< a href = ".." > 使用 CRD 扩展 Kubernetes API< / 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 = "使用crd扩展kubernetes-api" > 使 用 CRD扩 展 Kubernetes API< / h1 >
< p > 本 文 是 如 何 创 建 CRD 来 扩 展 Kubernetes API 的 教 程 。 CRD 是 用 来 扩 展 Kubernetes 最 常 用 的 方 式 ， 在 Service Mesh 和 Operator 中 也 被 大 量 使 用 。 因 此 读 者 如 果 想 在 Kubernetes 上 做 扩 展 和 开 发 的 话 ， 是 十 分 有 必 要 了 解 CRD 的 。 < / p >
< p > 在 阅 读 本 文 前 您 需 要 先 了 解 < a href = "custom-resource.html" > 使 用 自 定 义 资 源 扩 展 API< / a > ， 以 下 内 容 译 自 < a href = "https://kubernetes.io/docs/tasks/access-kubernetes-api/custom-resources/custom-resource-definitions/" target = "_blank" > Kubernetes 官 方 文 档 < / a > ， 有 删 改 ， 推 荐 阅 读 < a href = "https://www.servicemesher.com/blog/kubernetes-crd-quick-start/" target = "_blank" > 如 何 从 零 开 始 编 写 一 个 Kubernetes CRD< / a > 。 < / p >
< h2 id = "创建-crd（customresourcedefinition）" > 创 建 CRD（ CustomResourceDefinition） < / h2 >
< p > 创 建 新 的 CustomResourceDefinition（ CRD） 时 ， Kubernetes API Server 会 为 您 指 定 的 每 个 版 本 创 建 新 的 RESTful 资 源 路 径 。 CRD 可 以 是 命 名 空 间 的 ， 也 可 以 是 集 群 范 围 的 ， 可 以 在 CRD < code > scope< / code > 字 段 中 所 指 定 。 与 现 有 的 内 置 对 象 一 样 ， 删 除 命 名 空 间 会 删 除 该 命 名 空 间 中 的 所 有 自 定 义 对 象 。 CustomResourceDefinition 本 身 是 非 命 名 空 间 的 ， 可 供 所 有 命 名 空 间 使 用 。 < / p >
< p > 参 考 下 面 的 CRD， 将 其 配 置 保 存 在 < code > resourcedefinition.yaml< / code > 文 件 中 ： < / p >
< pre class = "language-" > < code class = "lang-yaml" > < span class = "token key atrule" > apiVersion< / span > < span class = "token punctuation" > :< / span > apiextensions.k8s.io/v1
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > CustomResourceDefinition
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token comment" > # 名 称 必 须 符 合 下 面 的 格 式 ： < plural> .< group> < / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > crontabs.stable.example.com
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token comment" > # REST API使 用 的 组 名 称 ： /apis/< group> /< version> < / span >
< span class = "token key atrule" > group< / span > < span class = "token punctuation" > :< / span > stable.example.com
< span class = "token comment" > # REST API使 用 的 版 本 号 ： /apis/< group> /< version> < / span >
< span class = "token key atrule" > versions< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > v1
< span class = "token comment" > # 可 以 通 过 served 来 开 关 每 个 version< / span >
< span class = "token key atrule" > served< / span > < span class = "token punctuation" > :< / span > < span class = "token boolean important" > true< / span >
< span class = "token comment" > # 有 且 仅 有 一 个 version 开 启 存 储 < / span >
< span class = "token key atrule" > storage< / span > < span class = "token punctuation" > :< / span > < span class = "token boolean important" > true< / span >
< span class = "token key atrule" > schema< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > openAPIV3Schema< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > type< / span > < span class = "token punctuation" > :< / span > object
< span class = "token key atrule" > properties< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > type< / span > < span class = "token punctuation" > :< / span > object
< span class = "token key atrule" > properties< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > cronSpec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > type< / span > < span class = "token punctuation" > :< / span > string
< span class = "token key atrule" > image< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > type< / span > < span class = "token punctuation" > :< / span > string
< span class = "token key atrule" > replicas< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > type< / span > < span class = "token punctuation" > :< / span > integer
< span class = "token comment" > # Namespaced或 Cluster< / span >
< span class = "token key atrule" > scope< / span > < span class = "token punctuation" > :< / span > Namespaced
< span class = "token key atrule" > names< / span > < span class = "token punctuation" > :< / span >
< span class = "token comment" > # URL中 使 用 的 复 数 名 称 : /apis/< group> /< version> /< plural> < / span >
< span class = "token key atrule" > plural< / span > < span class = "token punctuation" > :< / span > crontabs
< span class = "token comment" > # CLI中 使 用 的 单 数 名 称 < / span >
< span class = "token key atrule" > singular< / span > < span class = "token punctuation" > :< / span > crontab
< span class = "token comment" > # CamelCased格 式 的 单 数 类 型 。 在 清 单 文 件 中 使 用 < / span >
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > CronTab
< span class = "token comment" > # CLI中 使 用 的 资 源 简 称 < / span >
< span class = "token key atrule" > shortNames< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > ct
< / code > < / pre >
< blockquote >
< p > 此 处 使 用 的 apiVersion 版 本 是 < code > apiextensions.k8s.io/v1< / code > ， 跟 上 一 版 < code > apiextensions.k8s.io/v1beta1< / code > 的 最 主 要 区 别 是 改 用 了 < a href = "https://kubernetes.io/docs/tasks/access-kubernetes-api/extend-api-custom-resource-definitions/#validation" target = "_blank" > OpenAPI v3.0 validation schema< / a > 。 < / p >
< / blockquote >
< p > 创 建 该 CRD： < / p >
< pre class = "language-" > < code class = "lang-bash" > kubectl create -f resourcedefinition.yaml
< / code > < / pre >
< p > 访 问 RESTful API 端 点 如 < a href = "http://172.20.0.113:8080" target = "_blank" > http://172.20.0.113:8080< / a > 将 看 到 如 下 API 端 点 已 创 建 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > /apis/stable.example.com/v1/namespaces/*/crontabs/< span class = "token punctuation" > ..< / span > .
< / code > < / pre >
< p > 然 后 ， 此 端 点 URL 可 用 于 创 建 和 管 理 自 定 义 对 象 。 上 面 的 CRD 中 定 义 的 类 型 就 是 < code > CronTab< / code > 。 < / p >
< p > 可 能 需 要 几 秒 钟 才 能 创 建 端 点 。 您 可 以 监 控 CustomResourceDefinition 中 < code > Established< / code > 的 状 态 何 时 为 true， 或 者 查 看 API 资 源 的 发 现 信 息 中 是 否 显 示 了 您 的 资 源 。 < / p >
< h2 id = "创建自定义对象" > 创 建 自 定 义 对 象 < / h2 >
< p > 创 建 CustomResourceDefinition 对 象 后 ， 您 可 以 创 建 自 定 义 对 象 。 自 定 义 对 象 可 包 含 自 定 义 字 段 。 这 些 字 段 可 以 包 含 任 意 JSON。 在 以 下 示 例 中 ， < code > cronSpec< / code > 和 < code > image< / code > 自 定 义 字 段 在 自 定 义 对 象 中 设 置 < code > CronTab< / code > 。 < code > CronTab< / code > 类 型 来 自 您 在 上 面 创 建 的 CustomResourceDefinition 对 象 的 规 范 。 < / p >
< p > 如 果 您 将 以 下 YAML 保 存 到 < code > my-crontab.yaml< / code > ： < / p >
< pre class = "language-" > < code class = "lang-yaml" > < span class = "token key atrule" > apiVersion< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " stable.example.com/v1" < / span >
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > CronTab
< 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 > new< span class = "token punctuation" > -< / span > cron< span class = "token punctuation" > -< / span > object
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > cronSpec< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " * * * * */5" < / span >
< span class = "token key atrule" > image< / span > < span class = "token punctuation" > :< / span > my< span class = "token punctuation" > -< / span > awesome< span class = "token punctuation" > -< / span > cron< span class = "token punctuation" > -< / span > image
< / code > < / pre >
< p > 并 创 建 它 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > kubectl create -f my-crontab.yaml
< / code > < / pre >
< p > 然 后 ， 您 可 以 使 用 kubectl 管 理 CronTab 对 象 。 例 如 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > kubectl get < span class = "token function" > crontab< / span >
< / code > < / pre >
< p > 应 该 打 印 这 样 的 列 表 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > NAME AGE
my-new-cron-object 6s
< / code > < / pre >
< p > 使 用 kubectl 时 ， 资 源 名 称 不 区 分 大 小 写 ， 您 可 以 使 用 CRD 中 定 义 的 单 数 或 复 数 形 式 ， 以 及 任 何 短 名 称 。 < / p >
< p > 您 还 可 以 查 看 原 始 YAML 数 据 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > kubectl get ct -o yaml
< / code > < / pre >
< p > 您 应 该 看 到 它 的 yaml 中 的 自 定 义 < code > cronSpec< / code > 和 < code > image< / code > 字 段 ： < / p >
< pre class = "language-" > < code class = "lang-yaml" > < span class = "token key atrule" > apiVersion< / span > < span class = "token punctuation" > :< / span > v1
< span class = "token key atrule" > items< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > apiVersion< / span > < span class = "token punctuation" > :< / span > stable.example.com/v1
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > CronTab
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > clusterName< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " " < / span >
< span class = "token key atrule" > creationTimestamp< / span > < span class = "token punctuation" > :< / span > < span class = "token datetime number" > 2017-05-31T12:56:35Z< / span >
< span class = "token key atrule" > deletionGracePeriodSeconds< / span > < span class = "token punctuation" > :< / span > < span class = "token null important" > null< / span >
< span class = "token key atrule" > deletionTimestamp< / span > < span class = "token punctuation" > :< / span > < span class = "token null important" > null< / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > my< span class = "token punctuation" > -< / span > new< span class = "token punctuation" > -< / span > cron< span class = "token punctuation" > -< / span > object
< span class = "token key atrule" > namespace< / span > < span class = "token punctuation" > :< / span > default
< span class = "token key atrule" > resourceVersion< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " 285" < / span >
< span class = "token key atrule" > selfLink< / span > < span class = "token punctuation" > :< / span > /apis/stable.example.com/v1/namespaces/default/crontabs/my< span class = "token punctuation" > -< / span > new< span class = "token punctuation" > -< / span > cron< span class = "token punctuation" > -< / span > object
< span class = "token key atrule" > uid< / span > < span class = "token punctuation" > :< / span > 9423255b< span class = "token punctuation" > -< / span > 4600< span class = "token punctuation" > -< / span > 11e7< span class = "token punctuation" > -< / span > af6a< span class = "token punctuation" > -< / span > 28d2447dc82b
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > cronSpec< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > ' * * * * */5' < / span >
< span class = "token key atrule" > image< / span > < span class = "token punctuation" > :< / span > my< span class = "token punctuation" > -< / span > awesome< span class = "token punctuation" > -< / span > cron< span class = "token punctuation" > -< / span > image
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > List
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > resourceVersion< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " " < / span >
< span class = "token key atrule" > selfLink< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " " < / span >
< / code > < / pre >
< h2 id = "删除-customresourcedefinition" > 删 除 CustomResourceDefinition< / h2 >
< p > 删 除 CustomResourceDefinition 时 ， 服 务 器 将 删 除 RESTful API 端 点 并 < strong > 删 除 存 储 在 其 中 的 所 有 自 定 义 对 象 < / strong > 。 < / p >
< pre class = "language-" > < code class = "lang-bash" > kubectl delete -f resourcedefinition.yaml
kubectl get crontabs
Error from server < span class = "token punctuation" > (< / span > NotFound< span class = "token punctuation" > )< / span > : Unable to list < span class = "token string" > " crontabs" < / span > < span class = "token builtin class-name" > :< / span > the server could not < span class = "token function" > find< / span > the requested resource < span class = "token punctuation" > (< / span > get crontabs.stable.example.com< span class = "token punctuation" > )< / span >
< / code > < / pre >
< p > 如 果 稍 后 重 新 创 建 相 同 的 CustomResourceDefinition， 它 将 从 空 开 始 。 < / p >
< h2 id = "提供-crd-的多个版本" > 提 供 CRD 的 多 个 版 本 < / h2 >
< p > 有 关 提 供 CustomResourceDefinition 的 多 个 版 本 以 及 将 对 象 从 一 个 版 本 迁 移 到 另 一 个 < a href = "https://kubernetes.io/docs/tasks/access-kubernetes-api/custom-resources/custom-resource-definition-versioning/" target = "_blank" > 版 本 < / a > 的 详 细 信 息 ， 请 参 阅 < a href = "https://kubernetes.io/docs/tasks/access-kubernetes-api/custom-resources/custom-resource-definition-versioning/" target = "_blank" > 自 定 义 资 源 定 义 版 本 控 制 < / a > 。 < / p >
< h2 id = "高级主题" > 高 级 主 题 < / h2 >
< h3 id = "finalizer（终结器）" > Finalizer（ 终 结 器 ） < / h3 >
< p > < em > Finalizer（ 终 结 器 ） < / em > 允 许 控 制 器 实 现 异 步 预 删 除 hook。 自 定 义 对 象 支 持 终 结 器 ， 就 像 内 置 对 象 一 样 。 < / p >
< p > 您 可 以 将 终 结 器 添 加 到 自 定 义 对 象 ， 如 下 所 示 ： < / p >
< pre class = "language-" > < code class = "lang-yaml" > < span class = "token key atrule" > apiVersion< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " stable.example.com/v1" < / span >
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > CronTab
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > finalizers< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > finalizer.stable.example.com
< / code > < / pre >
< p > 终 结 器 是 任 意 字 符 串 值 ， 当 存 在 时 确 保 在 资 源 存 在 时 不 可 能 进 行 硬 删 除 。 < / p >
< p > 对 具 有 终 结 器 的 对 象 的 第 一 个 删 除 请 求 设 置 该 < code > metadata.deletionTimestamp< / code > 字 段 的 值 ， 但 不 删 除 它 。 设 置 此 值 后 ， < code > finalizer< / code > 只 能 删 除 列 表 中 的 条 目 。 < / p >
< p > 如 果 设 置 了 < code > metadata.deletionTimestamp< / code > 字 段 ， 控 制 器 监 控 对 象 将 执 行 它 们 所 有 的 终 结 器 ， 对 该 对 象 轮 询 更 新 请 求 。 执 行 完 所 有 终 结 器 后 ， 将 删 除 该 资 源 。 < / p >
< p > 值 < code > metadata.deletionGracePeriodSeconds< / code > 控 制 轮 询 更 新 之 间 的 间 隔 。 < / p >
< p > 每 个 控 制 器 都 有 责 任 从 列 表 中 删 除 其 终 结 器 。 < / p >
< p > 如 果 终 结 器 列 表 为 空 ， Kubernetes 最 终 只 会 删 除 该 对 象 ， 这 意 味 着 所 有 终 结 器 都 已 执 行 。 < / p >
< h3 id = "validation（验证）" > Validation（ 验 证 ） < / h3 >
< p > < strong > 功 能 状 态 ： < / strong > < code > Kubernetes v1.12< / code > < a href = "https://kubernetes.io/docs/tasks/access-kubernetes-api/custom-resources/custom-resource-definitions/#" target = "_blank" > beta< / a > < / p >
< p > 可 以 通 过 < a href = "https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.0.md#schemaObject" target = "_blank" > OpenAPI v3 schema< / a > 验 证 自 定 义 对 象 是 否 符 合 标 准 。 此 外 ， 以 下 限 制 适 用 于 schema： < / p >
< ul >
< li > 字 段 < code > default< / code > 、 < code > nullable< / code > 、 < code > discriminator< / code > 、 < code > readOnly< / code > 、 < code > writeOnly< / code > 、 < code > xml< / code > 、 < code > deprecated< / code > 和 < code > $ref< / code > 不 能 设 置 。 < / li >
< li > 该 字 段 < code > uniqueItems< / code > 不 能 设 置 为 true。 < / li >
< li > 该 字 段 < code > additionalProperties< / code > 不 能 设 置 为 false。 < / li >
< / ul >
< p > 您 可 以 使 用 < a href = "https://kubernetes.io/docs/admin/kube-apiserver" target = "_blank" > kube-apiserver< / a > < code > CustomResourceValidation< / code > 上 的 功 能 门 （ feature gate） 禁 用 此 功 能 ： < / p >
< pre class = "language-" > < code > --feature-gates=CustomResourceValidation=false
< / code > < / pre > < p > 该 schema 在 CustomResourceDefinition 中 定 义 。 在 以 下 示 例 中 ， CustomResourceDefinition 对 自 定 义 对 象 应 用 以 下 验 证 ： < / p >
< ul >
< li > < code > spec.cronSpec< / code > 必 须 是 字 符 串 ， 并 且 必 须 是 正 则 表 达 式 描 述 的 形 式 。 < / li >
< li > < code > spec.replicas< / code > 必 须 是 整 数 ， 且 最 小 值 必 须 为 1， 最 大 值 为 10。 < / li >
< / ul >
< p > 将 CustomResourceDefinition 保 存 到 < code > resourcedefinition.yaml< / code > ： < / p >
< pre class = "language-" > < code class = "lang-yaml" > < span class = "token key atrule" > apiVersion< / span > < span class = "token punctuation" > :< / span > apiextensions.k8s.io/v1beta1
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > CustomResourceDefinition
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > crontabs.stable.example.com
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > group< / span > < span class = "token punctuation" > :< / span > stable.example.com
< span class = "token key atrule" > versions< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > v1
< span class = "token key atrule" > served< / span > < span class = "token punctuation" > :< / span > < span class = "token boolean important" > true< / span >
< span class = "token key atrule" > storage< / span > < span class = "token punctuation" > :< / span > < span class = "token boolean important" > true< / span >
< span class = "token key atrule" > version< / span > < span class = "token punctuation" > :< / span > v1
< span class = "token key atrule" > scope< / span > < span class = "token punctuation" > :< / span > Namespaced
< span class = "token key atrule" > names< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > plural< / span > < span class = "token punctuation" > :< / span > crontabs
< span class = "token key atrule" > singular< / span > < span class = "token punctuation" > :< / span > crontab
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > CronTab
< span class = "token key atrule" > shortNames< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > ct
< span class = "token key atrule" > validation< / span > < span class = "token punctuation" > :< / span >
< span class = "token comment" > # openAPIV3Schema 适 用 于 验 证 自 定 义 对 象 的 schema。 < / span >
< span class = "token key atrule" > openAPIV3Schema< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > properties< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > properties< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > cronSpec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > type< / span > < span class = "token punctuation" > :< / span > string
< span class = "token key atrule" > pattern< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > ' ^(\d+|\*)(/\d+)?(\s+(\d+|\*)(/\d+)?){4}$' < / span >
< span class = "token key atrule" > replicas< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > type< / span > < span class = "token punctuation" > :< / span > integer
< span class = "token key atrule" > minimum< / span > < span class = "token punctuation" > :< / span > < span class = "token number" > 1< / span >
< span class = "token key atrule" > maximum< / span > < span class = "token punctuation" > :< / span > < span class = "token number" > 10< / span >
< / code > < / pre >
< p > 并 创 建 它 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > kubectl create -f resourcedefinition.yaml
< / code > < / pre >
< p > < code > CronTab< / code > 如 果 其 字 段 中 存 在 无 效 值 ， 则 将 拒 绝 创 建 类 型 的 自 定 义 对 象 的 请 求 。 在 以 下 示 例 中 ， 自 定 义 对 象 包 含 具 有 无 效 值 的 字 段 ： < / p >
< ul >
< li > < code > spec.cronSpec< / code > 与 正 则 表 达 式 不 匹 配 。 < / li >
< li > < code > spec.replicas< / code > 大 于 10。 < / li >
< / ul >
< p > 如 果 您 将 以 下 YAML保 存 到 < code > my-crontab.yaml< / code > ： < / p >
< pre class = "language-" > < code class = "lang-yaml" > < span class = "token key atrule" > apiVersion< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " stable.example.com/v1" < / span >
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > CronTab
< 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 > new< span class = "token punctuation" > -< / span > cron< span class = "token punctuation" > -< / span > object
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > cronSpec< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " * * * *" < / span >
< span class = "token key atrule" > image< / span > < span class = "token punctuation" > :< / span > my< span class = "token punctuation" > -< / span > awesome< span class = "token punctuation" > -< / span > cron< span class = "token punctuation" > -< / span > image
< span class = "token key atrule" > replicas< / span > < span class = "token punctuation" > :< / span > < span class = "token number" > 15< / span >
< / code > < / pre >
< p > 并 创 建 它 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > kubectl create -f my-crontab.yaml
< / code > < / pre >
< p > 你 会 收 到 一 个 错 误 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > The CronTab < span class = "token string" > " my-new-cron-object" < / span > is invalid: < span class = "token punctuation" > [< / span > < span class = "token punctuation" > ]< / span > : Invalid value: map< span class = "token punctuation" > [< / span > string< span class = "token punctuation" > ]< / span > interface < span class = "token punctuation" > {< / span > < span class = "token punctuation" > }< / span > < span class = "token punctuation" > {< / span > < span class = "token string" > " apiVersion" < / span > < span class = "token builtin class-name" > :< / span > < span class = "token string" > " stable.example.com/v1" < / span > , < span class = "token string" > " kind" < / span > < span class = "token builtin class-name" > :< / span > < span class = "token string" > " CronTab" < / span > , < span class = "token string" > " metadata" < / span > :map< span class = "token punctuation" > [< / span > string< span class = "token punctuation" > ]< / span > interface < span class = "token punctuation" > {< / span > < span class = "token punctuation" > }< / span > < span class = "token punctuation" > {< / span > < span class = "token string" > " name" < / span > < span class = "token builtin class-name" > :< / span > < span class = "token string" > " my-new-cron-object" < / span > , < span class = "token string" > " namespace" < / span > < span class = "token builtin class-name" > :< / span > < span class = "token string" > " default" < / span > , < span class = "token string" > " deletionTimestamp" < / span > :interface < span class = "token punctuation" > {< / span > < span class = "token punctuation" > }< / span > < span class = "token punctuation" > (< / span > nil< span class = "token punctuation" > )< / span > , < span class = "token string" > " deletionGracePeriodSeconds" < / span > :< span class = "token punctuation" > (< / span > *int64< span class = "token punctuation" > )< / span > < span class = "token punctuation" > (< / span > nil< span class = "token punctuation" > )< / span > , < span class = "token string" > " creationTimestamp" < / span > < span class = "token builtin class-name" > :< / span > < span class = "token string" > " 2017-09-05T05:20:07Z" < / span > , < span class = "token string" > " uid" < / span > < span class = "token builtin class-name" > :< / span > < span class = "token string" > " e14d79e7-91f9-11e7-a598-f0761cb232d1" < / span > , < span class = "token string" > " selfLink" < / span > < span class = "token builtin class-name" > :< / span > < span class = "token string" > " " < / span > , < span class = "token string" > " clusterName" < / span > < span class = "token builtin class-name" > :< / span > < span class = "token string" > " " < / span > < span class = "token punctuation" > }< / span > , < span class = "token string" > " spec" < / span > :map< span class = "token punctuation" > [< / span > string< span class = "token punctuation" > ]< / span > interface < span class = "token punctuation" > {< / span > < span class = "token punctuation" > }< / span > < span class = "token punctuation" > {< / span > < span class = "token string" > " cronSpec" < / span > < span class = "token builtin class-name" > :< / span > < span class = "token string" > " * * * *" < / span > , < span class = "token string" > " image" < / span > < span class = "token builtin class-name" > :< / span > < span class = "token string" > " my-awesome-cron-image" < / span > , < span class = "token string" > " replicas" < / span > :15< span class = "token punctuation" > }< / span > < span class = "token punctuation" > }< / span > :
validation failure list:
spec.cronSpec < span class = "token keyword" > in< / span > body should match < span class = "token string" > ' ^(\d+|\*)(/\d+)?(\s+(\d+|\*)(/\d+)?){4}$' < / span >
spec.replicas < span class = "token keyword" > in< / span > body should be < span class = "token function" > less< / span > than or equal to < span class = "token number" > 10< / span >
< / code > < / pre >
< p > 如 果 字 段 包 含 有 效 值 ， 则 接 受 对 象 创 建 请 求 。 < / p >
< p > 将 以 下 YAML 保 存 到 < code > my-crontab.yaml< / code > ： < / p >
< pre class = "language-" > < code class = "lang-yaml" > < span class = "token key atrule" > apiVersion< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " stable.example.com/v1" < / span >
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > CronTab
< 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 > new< span class = "token punctuation" > -< / span > cron< span class = "token punctuation" > -< / span > object
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > cronSpec< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " * * * * */5" < / span >
< span class = "token key atrule" > image< / span > < span class = "token punctuation" > :< / span > my< span class = "token punctuation" > -< / span > awesome< span class = "token punctuation" > -< / span > cron< span class = "token punctuation" > -< / span > image
< span class = "token key atrule" > replicas< / span > < span class = "token punctuation" > :< / span > < span class = "token number" > 5< / span >
< / code > < / pre >
< p > 并 创 建 它 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > kubectl create -f my-crontab.yaml
< span class = "token function" > crontab< / span > < span class = "token string" > " my-new-cron-object" < / span > created
< / code > < / pre >
< h3 id = "其他打印列" > 其 他 打 印 列 < / h3 >
< p > 从 Kubernetes 1.11 开 始 ， kubectl 使 用 服 务 器 端 打 印 。 服 务 器 决 定 < code > kubectl get< / code > 命 令 显 示 哪 些 列 。 您 可 以 使 用 CustomResourceDefinition 自 定 义 这 些 列 。 下 面 的 示 例 将 输 出 < code > Spec< / code > 、 < code > Replicas< / code > 和 < code > Age< / code > 列 。 < / p >
< ol >
< li > < p > 将 CustomResourceDefinition 保 存 到 < code > resourcedefinition.yaml< / code > 。 < / p >
< pre class = "language-" > < code class = "lang-yaml" > < span class = "token key atrule" > apiVersion< / span > < span class = "token punctuation" > :< / span > apiextensions.k8s.io/v1beta1
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > CustomResourceDefinition
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > crontabs.stable.example.com
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > group< / span > < span class = "token punctuation" > :< / span > stable.example.com
< span class = "token key atrule" > version< / span > < span class = "token punctuation" > :< / span > v1
< span class = "token key atrule" > scope< / span > < span class = "token punctuation" > :< / span > Namespaced
< span class = "token key atrule" > names< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > plural< / span > < span class = "token punctuation" > :< / span > crontabs
< span class = "token key atrule" > singular< / span > < span class = "token punctuation" > :< / span > crontab
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > CronTab
< span class = "token key atrule" > shortNames< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > ct
< span class = "token key atrule" > additionalPrinterColumns< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > Spec
< span class = "token key atrule" > type< / span > < span class = "token punctuation" > :< / span > string
< span class = "token key atrule" > description< / span > < span class = "token punctuation" > :< / span > The cron spec defining the interval a CronJob is run
< span class = "token key atrule" > JSONPath< / span > < span class = "token punctuation" > :< / span > .spec.cronSpec
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > Replicas
< span class = "token key atrule" > type< / span > < span class = "token punctuation" > :< / span > integer
< span class = "token key atrule" > description< / span > < span class = "token punctuation" > :< / span > The number of jobs launched by the CronJob
< span class = "token key atrule" > JSONPath< / span > < span class = "token punctuation" > :< / span > .spec.replicas
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > Age
< span class = "token key atrule" > type< / span > < span class = "token punctuation" > :< / span > date
< span class = "token key atrule" > JSONPath< / span > < span class = "token punctuation" > :< / span > .metadata.creationTimestamp
< / code > < / pre >
< / li >
< li > < p > 创 建 CustomResourceDefinition： < / p >
< pre class = "language-" > < code class = "lang-bash" > kubectl create -f resourcedefinition.yaml
< / code > < / pre >
< / li >
< li > < p > 使 用 上 一 节 中 的 创 建 的 < code > my-crontab.yaml< / code > 实 例 。 < / p >
< / li >
< li > < p > 调 用 服 务 器 端 打 印 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > kubectl get < span class = "token function" > crontab< / span > my-new-cron-object
< / code > < / pre >
< p > 请 注 意 < code > NAME< / code > 、 < code > SPEC< / code > 、 < code > REPLICAS< / code > 和 < code > AGE< / code > 在 输 出 列 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > NAME SPEC REPLICAS AGE
my-new-cron-object * * * * * < span class = "token number" > 1< / span > 7s
< / code > < / pre >
< p > < code > NAME< / code > 列 是 隐 含 的 ， 不 需 要 在 CustomResourceDefinition 中 定 义 。 < / p >
< / li >
< / ol >
< h4 id = "priority（优先级）" > Priority（ 优 先 级 ） < / h4 >
< p > 每 列 中 都 包 含 一 个 < code > priority< / code > 字 段 。 目 前 ， 优 先 级 区 分 标 准 视 图 或 wide 视 图 中 显 示 的 列 （ 使 用 < code > -o wide< / code > 标 志 ） 。 < / p >
< ul >
< li > 具 有 优 先 级 的 列 < code > 0< / code > 显 示 在 标 准 视 图 中 。 < / li >
< li > 优 先 级 大 于 < code > 0< / code > 的 列 仅 在 wide 视 图 中 显 示 。 < / li >
< / ul >
< h4 id = "type（类型）" > Type（ 类 型 ） < / h4 >
< p > 列 中 的 < code > type< / code > 字 段 可 以 是 以 下 任 何 一 种 （ 参 考 < a href = "https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.0.md#dataTypes" target = "_blank" > OpenAPI v3 数 据 类 型 < / a > ） ： < / p >
< ul >
< li > < code > integer< / code > - 非 浮 点 数 < / li >
< li > < code > number< / code > - 浮 点 数 < / li >
< li > < code > string< / code > - 字 符 串 < / li >
< li > < code > boolean< / code > - ture 或 false< / li >
< li > < code > date< / code > - 自 此 时 间 戳 以 来 的 时 间 差 异 呈 现 < / li >
< / ul >
< p > 如 果 CustomResource 中 的 值 与 为 列 指 定 的 类 型 不 匹 配 ， 则 省 略 该 值 。 使 用 CustomResource 验 证 以 确 保 值 类 型 正 确 。 < / p >
< h4 id = "format（格式）" > Format（ 格 式 ） < / h4 >
< p > 列 中 的 < code > format< / code > 字 段 可 以 是 以 下 任 何 一 个 ： < / p >
< ul >
< li > < code > int32< / code > < / li >
< li > < code > int64< / code > < / li >
< li > < code > float< / code > < / li >
< li > < code > double< / code > < / li >
< li > < code > byte< / code > < / li >
< li > < code > date< / code > < / li >
< li > < code > date-time< / code > < / li >
< li > < code > password< / code > < / li >
< / ul >
< p > 该 列 < code > format< / code > 控 制 < code > kubectl< / code > 打 印 值 时 使 用 的 样 式 。 < / p >
< h3 id = "子资源" > 子 资 源 < / h3 >
< p > < strong > 功 能 状 态 ： < / strong > < code > Kubernetes v1.12< / code > < a href = "https://kubernetes.io/docs/tasks/access-kubernetes-api/custom-resources/custom-resource-definitions/#" target = "_blank" > beta< / a > < / p >
< p > 自 定 义 资 源 支 持 < code > /status< / code > 和 < code > /scale< / code > 子 资 源 。 < / p >
< p > 您 可 以 使 用 < a href = "https://kubernetes.io/docs/admin/kube-apiserver" target = "_blank" > kube-apiserver< / a > < code > CustomResourceSubresources< / code > 上 的 功 能 门 （ feature gate） 禁 用 此 功 能 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > --feature-gates< span class = "token operator" > =< / span > CustomResourceSubresources< span class = "token operator" > =< / span > false
< / code > < / pre >
< p > 可 以 通 过 在 CustomResourceDefinition 中 定 义 它 们 来 选 择 性 地 启 用 status 和 scale 子 资 源 。 < / p >
< h4 id = "状态子资源" > 状 态 子 资 源 < / h4 >
< p > 启 用 状 态 子 资 源 后 ， 将 公 开 自 定 义 资 源 的 子 资 源 < code > /status< / code > 。 < / p >
< ul >
< li > 状 态 和 规 范 节 分 别 由 自 定 义 资 源 内 的 JSONPath < code > .status< / code > 和 < code > .spec< / code > JSONPath 表 示 。 < / li >
< li > < code > PUT``/status< / code > 对 子 资 源 的 请 求 采 用 自 定 义 资 源 对 象 ， 并 忽 略 除 状 态 节 之 外 的 任 何 更 改 。 < / li >
< li > < code > PUT``/status< / code > 对 子 资 源 的 请 求 仅 验 证 自 定 义 资 源 的 状 态 节 。 < / li >
< li > < code > PUT< / code > / < code > POST< / code > / < code > PATCH< / code > 请 求 自 定 义 资 源 忽 略 更 改 状 态 节 。 < / li >
< li > 对 spec 节 的 任 何 更 改 都 会 增 加 < code > .metadata.generation< / code > 的 值 。 < / li >
< li > 在 CRD OpenAPI 验 证 模 式 的 根 目 录 中 只 允 许 以 下 构 造 ： < / li >
< li > < ul >
< li > Description< / li >
< li > Example< / li >
< li > ExclusiveMaximum< / li >
< li > ExclusiveMinimum< / li >
< li > ExternalDocs< / li >
< li > Format< / li >
< li > Items< / li >
< li > Maximum< / li >
< li > MaxItems< / li >
< li > MaxLength< / li >
< li > Minimum< / li >
< li > MinItems< / li >
< li > MinLength< / li >
< li > MultipleOf< / li >
< li > Pattern< / li >
< li > Properties< / li >
< li > Required< / li >
< li > Title< / li >
< li > Type< / li >
< li > UniqueItems< / li >
< / ul >
< / li >
< / ul >
< h4 id = "扩展子资源" > 扩 展 子 资 源 < / h4 >
< p > 启 用 scale 子 资 源 后 ， 将 公 开 自 定 义 资 源 的 子 资 源 < code > /scale< / code > 。 该 < code > autoscaling/v1.Scale< / code > 对 象 作 为 有 效 负 载 发 送 < code > /scale< / code > 。 < / p >
< p > 要 启 用 scale 子 资 源 ， CustomResourceDefinition 中 需 要 定 义 以 下 值 。 < / p >
< ul >
< li > < code > SpecReplicasPath< / code > 在 与 之 对 应 的 自 定 义 资 源 中 定 义 JSONPath < code > Scale.Spec.Replicas< / code > 。 < ul >
< li > 这 是 一 个 必 需 的 值 。 < / li >
< li > < code > .spec< / code > 只 允 许 使 用 带 点 符 号 的 JSONPaths 。 < / li >
< li > 如 果 < code > SpecReplicasPath< / code > 自 定 义 资 源 中 没 有 值 ， 则 < code > /scale< / code > 子 资 源 将 在 GET上 返 回 错 误 。 < / li >
< / ul >
< / li >
< li > < code > StatusReplicasPath< / code > 在 与 之 对 应 的 自 定 义 资 源 中 定 义 JSONPath < code > Scale.Status.Replicas< / code > 。 < ul >
< li > 这 是 一 个 必 需 的 值 。 < / li >
< li > < code > .stutus< / code > 只 允 许 使 用 带 点 符 号 的 JSONPaths 。 < / li >
< li > 如 果 < code > StatusReplicasPath< / code > 自 定 义 资 源 中 没 有 值 ， 则 子 资 源 < code > /scale< / code > 中 的 状 态 副 本 值 将 默 认 为 0。 < / li >
< / ul >
< / li >
< li > < code > LabelSelectorPath< / code > 在 与 之 对 应 的 自 定 义 资 源 中 定 义 JSONPath < code > Scale.Status.Selector< / code > 。 < ul >
< li > 这 是 一 个 可 选 值 。 < / li >
< li > 必 须 将 其 设 置 为 与 HPA 一 起 使 用 。 < / li >
< li > < code > .status< / code > 只 允 许 使 用 带 点 符 号 的 JSONPaths 。 < / li >
< li > 如 果 < code > LabelSelectorPath< / code > 自 定 义 资 源 中 没 有 值 ， 则 子 资 源 < code > /scale< / code > 中 的 状 态 选 择 器 值 将 默 认 为 空 字 符 串 。 < / li >
< / ul >
< / li >
< / ul >
< p > 在 以 下 示 例 中 ， 启 用 了 status 和 scale 子 资 源 。 < / p >
< p > 将 CustomResourceDefinition 保 存 到 < code > resourcedefinition.yaml< / code > ： < / p >
< pre class = "language-" > < code class = "lang-yaml" > < span class = "token key atrule" > apiVersion< / span > < span class = "token punctuation" > :< / span > apiextensions.k8s.io/v1beta1
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > CustomResourceDefinition
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > crontabs.stable.example.com
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > group< / span > < span class = "token punctuation" > :< / span > stable.example.com
< span class = "token key atrule" > versions< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > v1
< span class = "token key atrule" > served< / span > < span class = "token punctuation" > :< / span > < span class = "token boolean important" > true< / span >
< span class = "token key atrule" > storage< / span > < span class = "token punctuation" > :< / span > < span class = "token boolean important" > true< / span >
< span class = "token key atrule" > scope< / span > < span class = "token punctuation" > :< / span > Namespaced
< span class = "token key atrule" > names< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > plural< / span > < span class = "token punctuation" > :< / span > crontabs
< span class = "token key atrule" > singular< / span > < span class = "token punctuation" > :< / span > crontab
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > CronTab
< span class = "token key atrule" > shortNames< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > ct
< span class = "token comment" > # subresources describes the subresources for custom resources.< / span >
< span class = "token key atrule" > subresources< / span > < span class = "token punctuation" > :< / span >
< span class = "token comment" > # status enables the status subresource.< / span >
< span class = "token key atrule" > status< / span > < span class = "token punctuation" > :< / span > < span class = "token punctuation" > {< / span > < span class = "token punctuation" > }< / span >
< span class = "token comment" > # scale enables the scale subresource.< / span >
< span class = "token key atrule" > scale< / span > < span class = "token punctuation" > :< / span >
< span class = "token comment" > # specReplicasPath defines the JSONPath inside of a custom resource that corresponds to Scale.Spec.Replicas.< / span >
< span class = "token key atrule" > specReplicasPath< / span > < span class = "token punctuation" > :< / span > .spec.replicas
< span class = "token comment" > # statusReplicasPath defines the JSONPath inside of a custom resource that corresponds to Scale.Status.Replicas.< / span >
< span class = "token key atrule" > statusReplicasPath< / span > < span class = "token punctuation" > :< / span > .status.replicas
< span class = "token comment" > # labelSelectorPath defines the JSONPath inside of a custom resource that corresponds to Scale.Status.Selector.< / span >
< span class = "token key atrule" > labelSelectorPath< / span > < span class = "token punctuation" > :< / span > .status.labelSelector
< / code > < / pre >
< p > 并 创 建 它 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > kubectl create -f resourcedefinition.yaml
< / code > < / pre >
< p > 创 建 CustomResourceDefinition 对 象 后 ， 您 可 以 创 建 自 定 义 对 象 。 < / p >
< p > 如 果 您 将 以 下 YAML 保 存 到 < code > my-crontab.yaml< / code > ： < / p >
< pre class = "language-" > < code class = "lang-yaml" > < span class = "token key atrule" > apiVersion< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " stable.example.com/v1" < / span >
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > CronTab
< 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 > new< span class = "token punctuation" > -< / span > cron< span class = "token punctuation" > -< / span > object
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > cronSpec< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " * * * * */5" < / span >
< span class = "token key atrule" > image< / span > < span class = "token punctuation" > :< / span > my< span class = "token punctuation" > -< / span > awesome< span class = "token punctuation" > -< / span > cron< span class = "token punctuation" > -< / span > image
< span class = "token key atrule" > replicas< / span > < span class = "token punctuation" > :< / span > < span class = "token number" > 3< / span >
< / code > < / pre >
< p > 并 创 建 它 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > kubectl create -f my-crontab.yaml
< / code > < / pre >
< p > 然 后 在 以 下 位 置 创 建 新 的 命 名 空 间 RESTful API 端 点 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > /apis/stable.example.com/v1/namespaces/*/crontabs/status
< / code > < / pre >
< p > 和 < / p >
< pre class = "language-" > < code class = "lang-bash" > /apis/stable.example.com/v1/namespaces/*/crontabs/scale
< / code > < / pre >
< p > 可 以 使 用 该 < code > kubectl scale< / code > 命 令 缩 放 自 定 义 资 源 。 例 如 ， 以 上 创 建 的 自 定 义 资 源 的 的 < code > .spec.replicas< / code > 设 置 为 5： < / p >
< pre class = "language-" > < code class = "lang-bash" > kubectl scale --replicas< span class = "token operator" > =< / span > < span class = "token number" > 5< / span > crontabs/my-new-cron-object
crontabs < span class = "token string" > " my-new-cron-object" < / span > scaled
kubectl get crontabs my-new-cron-object -o < span class = "token assign-left variable" > jsonpath< / span > < span class = "token operator" > =< / span > < span class = "token string" > ' {.spec.replicas}' < / span >
< span class = "token number" > 5< / span >
< / code > < / pre >
< h3 id = "category（分类）" > Category（ 分 类 ） < / h3 >
< p > 类 别 是 自 定 义 资 源 所 属 的 分 组 资 源 的 列 表 （ 例 如 < code > all< / code > ） 。 您 可 以 使 用 < code > kubectl get < span class = "token tag" > < span class = "token tag" > < span class = "token punctuation" > < < / span > category-name< / span > < span class = "token punctuation" > > < / span > < / span > < / code > 列 出 属 于 该 类 别 的 资 源 。 此 功 能 是 < strong > beta< / strong > ， 可 用 于 v1.10 中 的 自 定 义 资 源 。 < / p >
< p > 以 下 示 例 添 加 < code > all< / code > CustomResourceDefinition 中 的 类 别 列 表 ， 并 说 明 如 何 使 用 < code > kubectl get all< / code > 输 出 自 定 义 资 源 。 < / p >
< p > 将 以 下 CustomResourceDefinition 保 存 到 < code > resourcedefinition.yaml< / code > ： < / p >
< pre class = "language-" > < code class = "lang-yaml" > < span class = "token key atrule" > apiVersion< / span > < span class = "token punctuation" > :< / span > apiextensions.k8s.io/v1beta1
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > CustomResourceDefinition
< span class = "token key atrule" > metadata< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > crontabs.stable.example.com
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > group< / span > < span class = "token punctuation" > :< / span > stable.example.com
< span class = "token key atrule" > versions< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > < span class = "token key atrule" > name< / span > < span class = "token punctuation" > :< / span > v1
< span class = "token key atrule" > served< / span > < span class = "token punctuation" > :< / span > < span class = "token boolean important" > true< / span >
< span class = "token key atrule" > storage< / span > < span class = "token punctuation" > :< / span > < span class = "token boolean important" > true< / span >
< span class = "token key atrule" > scope< / span > < span class = "token punctuation" > :< / span > Namespaced
< span class = "token key atrule" > names< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > plural< / span > < span class = "token punctuation" > :< / span > crontabs
< span class = "token key atrule" > singular< / span > < span class = "token punctuation" > :< / span > crontab
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > CronTab
< span class = "token key atrule" > shortNames< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > ct
< span class = "token comment" > # categories is a list of grouped resources the custom resource belongs to.< / span >
< span class = "token key atrule" > categories< / span > < span class = "token punctuation" > :< / span >
< span class = "token punctuation" > -< / span > all
< / code > < / pre >
< p > 并 创 建 它 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > kubectl create -f resourcedefinition.yaml
< / code > < / pre >
< p > 创 建 CustomResourceDefinition 对 象 后 ， 您 可 以 创 建 自 定 义 对 象 。 < / p >
< p > 将 以 下 YAML 保 存 到 < code > my-crontab.yaml< / code > ： < / p >
< pre class = "language-" > < code class = "lang-yaml" > < span class = "token key atrule" > apiVersion< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " stable.example.com/v1" < / span >
< span class = "token key atrule" > kind< / span > < span class = "token punctuation" > :< / span > CronTab
< 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 > new< span class = "token punctuation" > -< / span > cron< span class = "token punctuation" > -< / span > object
< span class = "token key atrule" > spec< / span > < span class = "token punctuation" > :< / span >
< span class = "token key atrule" > cronSpec< / span > < span class = "token punctuation" > :< / span > < span class = "token string" > " * * * * */5" < / span >
< span class = "token key atrule" > image< / span > < span class = "token punctuation" > :< / span > my< span class = "token punctuation" > -< / span > awesome< span class = "token punctuation" > -< / span > cron< span class = "token punctuation" > -< / span > image
< / code > < / pre >
< p > 并 创 建 它 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > kubectl create -f my-crontab.yaml
< / code > < / pre >
< p > 您 可 以 使 用 < code > kubectl get< / code > 以 下 方 式 指 定 类 别 ： < / p >
< pre class = "language-" > < code class = "lang-bash" > kubectl get all
< / code > < / pre >
< p > 它 将 包 括 种 类 的 自 定 义 资 源 < code > CronTab< / code > ： < / p >
< pre class = "language-" > < code class = "lang-bash" > NAME AGE
crontabs/my-new-cron-object 3s
< / code > < / pre >
< h2 id = "参考" > 参 考 < / h2 >
< ul >
< li > < a href = "https://kubernetes.io/docs/tasks/access-kubernetes-api/custom-resources/custom-resource-definitions/" target = "_blank" > Extend the Kubernetes API with CustomResourceDefinitions - kubernetes.io< / a > < / li >
< li > < a href = "https://www.servicemesher.com/blog/kubernetes-crd-quick-start/" target = "_blank" > 如 何 从 零 开 始 编 写 一 个 Kubernetes CRD - servicemesher.com< / a > < / li >
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