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序言
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2.1 设计理念
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2.2 Objects
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<ul class="articles">
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<li class="chapter " data-level="1.3.2.1" data-path="pod-overview.html">
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<a href="pod-overview.html">
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2.2.1 Pod
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</a>
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<ul class="articles">
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<li class="chapter " data-level="1.3.2.1.1" data-path="pod.html">
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<a href="pod.html">
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2.2.1.1 Pod解析
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</a>
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<li class="chapter " data-level="1.3.2.1.2" data-path="init-containers.html">
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<a href="init-containers.html">
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2.2.1.2 Init容器
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</a>
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<li class="chapter " data-level="1.3.2.1.3" data-path="pod-security-policy.html">
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<a href="pod-security-policy.html">
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2.2.1.3 Pod安全策略
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</a>
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</li>
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<li class="chapter active" data-level="1.3.2.1.4" data-path="pod-lifecycle.html">
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<a href="pod-lifecycle.html">
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2.2.1.4 Pod的生命周期
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</a>
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</ul>
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<li class="chapter " data-level="1.3.2.2" data-path="node.html">
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<a href="node.html">
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2.2.2 Node
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</a>
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</li>
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<li class="chapter " data-level="1.3.2.3" data-path="namespace.html">
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<a href="namespace.html">
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2.2.3 Namespace
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</a>
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</li>
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<li class="chapter " data-level="1.3.2.4" data-path="service.html">
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<a href="service.html">
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2.2.4 Service
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</a>
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</li>
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<li class="chapter " data-level="1.3.2.5" data-path="volume.html">
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<a href="volume.html">
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2.2.5 Volume和Persistent Volume
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</a>
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</li>
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<li class="chapter " data-level="1.3.2.6" data-path="deployment.html">
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<a href="deployment.html">
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2.2.6 Deployment
|
||
|
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</a>
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</li>
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<li class="chapter " data-level="1.3.2.7" data-path="secret.html">
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<a href="secret.html">
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|
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|
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2.2.7 Secret
|
||
|
||
</a>
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||
|
||
|
||
|
||
</li>
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|
||
<li class="chapter " data-level="1.3.2.8" data-path="statefulset.html">
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<a href="statefulset.html">
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||
|
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|
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2.2.8 StatefulSet
|
||
|
||
</a>
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|
||
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</li>
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|
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<li class="chapter " data-level="1.3.2.9" data-path="daemonset.html">
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<a href="daemonset.html">
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2.2.9 DaemonSet
|
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|
||
</a>
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</li>
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<li class="chapter " data-level="1.3.2.10" data-path="serviceaccount.html">
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||
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<a href="serviceaccount.html">
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||
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2.2.10 ServiceAccount
|
||
|
||
</a>
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||
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||
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||
</li>
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<li class="chapter " data-level="1.3.2.11" data-path="replicaset.html">
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<a href="replicaset.html">
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||
|
||
|
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2.2.11 ReplicationController和ReplicaSet
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||
|
||
</a>
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||
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</li>
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<li class="chapter " data-level="1.3.2.12" data-path="job.html">
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<a href="job.html">
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|
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|
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2.2.12 Job
|
||
|
||
</a>
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||
|
||
|
||
|
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</li>
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|
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<li class="chapter " data-level="1.3.2.13" data-path="cronjob.html">
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<a href="cronjob.html">
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||
|
||
|
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2.2.13 CronJob
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
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|
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<li class="chapter " data-level="1.3.2.14" data-path="ingress.html">
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<a href="ingress.html">
|
||
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||
|
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2.2.14 Ingress
|
||
|
||
</a>
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||
|
||
|
||
|
||
</li>
|
||
|
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<li class="chapter " data-level="1.3.2.15" data-path="configmap.html">
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||
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<a href="configmap.html">
|
||
|
||
|
||
2.2.15 ConfigMap
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.3.2.15.1" data-path="configmap-hot-update.html">
|
||
|
||
<a href="configmap-hot-update.html">
|
||
|
||
|
||
2.2.15.1 ConfigMap的热更新
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
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||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.3.2.16" data-path="horizontal-pod-autoscaling.html">
|
||
|
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<a href="horizontal-pod-autoscaling.html">
|
||
|
||
|
||
2.2.16 Horizontal Pod Autoscaling
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.3.2.17" data-path="label.html">
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||
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<a href="label.html">
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|
||
|
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2.2.17 Label
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.3.2.18" data-path="garbage-collection.html">
|
||
|
||
<a href="garbage-collection.html">
|
||
|
||
|
||
2.2.18 垃圾收集
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.3.2.19" data-path="network-policy.html">
|
||
|
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<a href="network-policy.html">
|
||
|
||
|
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2.2.19 NetworkPolicy
|
||
|
||
</a>
|
||
|
||
|
||
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</li>
|
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|
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<li class="chapter " data-level="1.3.2.20" data-path="annotation.html">
|
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|
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<a href="annotation.html">
|
||
|
||
|
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2.2.20 Annotation
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
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|
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</li>
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||
|
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|
||
</ul>
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|
||
</li>
|
||
|
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<li class="chapter " data-level="1.4" data-path="../guide/">
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|
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<a href="../guide/">
|
||
|
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|
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3. 用户指南
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.4.1" data-path="../guide/resource-configuration.html">
|
||
|
||
<a href="../guide/resource-configuration.html">
|
||
|
||
|
||
3.1 资源对象配置
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.4.1.1" data-path="../guide/configure-liveness-readiness-probes.html">
|
||
|
||
<a href="../guide/configure-liveness-readiness-probes.html">
|
||
|
||
|
||
3.1.1 配置Pod的liveness和readiness探针
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.1.2" data-path="../guide/configure-pod-service-account.html">
|
||
|
||
<a href="../guide/configure-pod-service-account.html">
|
||
|
||
|
||
3.1.2 配置Pod的Service Account
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.1.3" data-path="../guide/secret-configuration.html">
|
||
|
||
<a href="../guide/secret-configuration.html">
|
||
|
||
|
||
3.1.3 Secret配置
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.1.4" data-path="../guide/resource-quota-management.html">
|
||
|
||
<a href="../guide/resource-quota-management.html">
|
||
|
||
|
||
3.2.3 管理namespace中的资源配额
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.2" data-path="../guide/command-usage.html">
|
||
|
||
<a href="../guide/command-usage.html">
|
||
|
||
|
||
3.2 命令使用
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.4.2.1" data-path="../guide/docker-cli-to-kubectl.html">
|
||
|
||
<a href="../guide/docker-cli-to-kubectl.html">
|
||
|
||
|
||
3.2.1 docker用户过度到kubectl命令行指南
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.2.2" data-path="../guide/using-kubectl.html">
|
||
|
||
<a href="../guide/using-kubectl.html">
|
||
|
||
|
||
3.2.2 kubectl命令概览
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.2.3" data-path="../guide/kubectl-cheatsheet.html">
|
||
|
||
<a href="../guide/kubectl-cheatsheet.html">
|
||
|
||
|
||
3.2.3 kubectl命令技巧大全
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.3" data-path="../guide/cluster-security-management.html">
|
||
|
||
<a href="../guide/cluster-security-management.html">
|
||
|
||
|
||
3.3 集群安全性管理
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.4.3.1" data-path="../guide/managing-tls-in-a-cluster.html">
|
||
|
||
<a href="../guide/managing-tls-in-a-cluster.html">
|
||
|
||
|
||
3.3.1 管理集群中的TLS
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.3.2" data-path="../guide/kubelet-authentication-authorization.html">
|
||
|
||
<a href="../guide/kubelet-authentication-authorization.html">
|
||
|
||
|
||
3.3.2 kubelet的认证授权
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.3.3" data-path="../guide/tls-bootstrapping.html">
|
||
|
||
<a href="../guide/tls-bootstrapping.html">
|
||
|
||
|
||
3.3.3 TLS bootstrap
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.3.4" data-path="../guide/kubectl-user-authentication-authorization.html">
|
||
|
||
<a href="../guide/kubectl-user-authentication-authorization.html">
|
||
|
||
|
||
3.3.4 创建用户认证授权的kubeconfig文件
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.3.5" data-path="../guide/rbac.html">
|
||
|
||
<a href="../guide/rbac.html">
|
||
|
||
|
||
3.3.5 RBAC——基于角色的访问控制
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.3.6" data-path="../guide/ip-masq-agent.html">
|
||
|
||
<a href="../guide/ip-masq-agent.html">
|
||
|
||
|
||
3.3.6 IP伪装代理
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.4" data-path="../guide/access-kubernetes-cluster.html">
|
||
|
||
<a href="../guide/access-kubernetes-cluster.html">
|
||
|
||
|
||
3.4 访问 Kubernetes 集群
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.4.4.1" data-path="../guide/access-cluster.html">
|
||
|
||
<a href="../guide/access-cluster.html">
|
||
|
||
|
||
3.4.1 访问集群
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.4.2" data-path="../guide/authenticate-across-clusters-kubeconfig.html">
|
||
|
||
<a href="../guide/authenticate-across-clusters-kubeconfig.html">
|
||
|
||
|
||
3.4.2 使用 kubeconfig 文件配置跨集群认证
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.4.3" data-path="../guide/connecting-to-applications-port-forward.html">
|
||
|
||
<a href="../guide/connecting-to-applications-port-forward.html">
|
||
|
||
|
||
3.4.3 通过端口转发访问集群中的应用程序
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.4.4" data-path="../guide/service-access-application-cluster.html">
|
||
|
||
<a href="../guide/service-access-application-cluster.html">
|
||
|
||
|
||
3.4.4 使用 service 访问群集中的应用程序
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.5" data-path="../guide/application-development-deployment-flow.html">
|
||
|
||
<a href="../guide/application-development-deployment-flow.html">
|
||
|
||
|
||
3.5 在kubernetes中开发部署应用
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.4.5.1" data-path="../guide/deploy-applications-in-kubernetes.html">
|
||
|
||
<a href="../guide/deploy-applications-in-kubernetes.html">
|
||
|
||
|
||
3.5.1 适用于kubernetes的应用开发部署流程
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.5.2" data-path="../guide/migrating-hadoop-yarn-to-kubernetes.html">
|
||
|
||
<a href="../guide/migrating-hadoop-yarn-to-kubernetes.html">
|
||
|
||
|
||
3.5.2 迁移传统应用到kubernetes中——以Hadoop YARN为例
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.5.3" data-path="../guide/using-statefulset.html">
|
||
|
||
<a href="../guide/using-statefulset.html">
|
||
|
||
|
||
3.5.3 使用StatefulSet部署用状态应用
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5" data-path="../practice/">
|
||
|
||
<a href="../practice/">
|
||
|
||
|
||
4. 最佳实践
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.1" data-path="../practice/install-kbernetes1.6-on-centos.html">
|
||
|
||
<a href="../practice/install-kbernetes1.6-on-centos.html">
|
||
|
||
|
||
4.1 在CentOS上部署kubernetes1.6集群
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.1.1" data-path="../practice/create-tls-and-secret-key.html">
|
||
|
||
<a href="../practice/create-tls-and-secret-key.html">
|
||
|
||
|
||
4.1.1 创建TLS证书和秘钥
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.1.2" data-path="../practice/create-kubeconfig.html">
|
||
|
||
<a href="../practice/create-kubeconfig.html">
|
||
|
||
|
||
4.1.2 创建kubeconfig文件
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.1.3" data-path="../practice/etcd-cluster-installation.html">
|
||
|
||
<a href="../practice/etcd-cluster-installation.html">
|
||
|
||
|
||
4.1.3 创建高可用etcd集群
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.1.4" data-path="../practice/kubectl-installation.html">
|
||
|
||
<a href="../practice/kubectl-installation.html">
|
||
|
||
|
||
4.1.4 安装kubectl命令行工具
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.1.5" data-path="../practice/master-installation.html">
|
||
|
||
<a href="../practice/master-installation.html">
|
||
|
||
|
||
4.1.5 部署master节点
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.1.6" data-path="../practice/node-installation.html">
|
||
|
||
<a href="../practice/node-installation.html">
|
||
|
||
|
||
4.1.6 部署node节点
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.1.7" data-path="../practice/kubedns-addon-installation.html">
|
||
|
||
<a href="../practice/kubedns-addon-installation.html">
|
||
|
||
|
||
4.1.7 安装kubedns插件
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.1.8" data-path="../practice/dashboard-addon-installation.html">
|
||
|
||
<a href="../practice/dashboard-addon-installation.html">
|
||
|
||
|
||
4.1.8 安装dashboard插件
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.1.9" data-path="../practice/heapster-addon-installation.html">
|
||
|
||
<a href="../practice/heapster-addon-installation.html">
|
||
|
||
|
||
4.1.9 安装heapster插件
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.1.10" data-path="../practice/efk-addon-installation.html">
|
||
|
||
<a href="../practice/efk-addon-installation.html">
|
||
|
||
|
||
4.1.10 安装EFK插件
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.2" data-path="../practice/service-discovery-and-loadbalancing.html">
|
||
|
||
<a href="../practice/service-discovery-and-loadbalancing.html">
|
||
|
||
|
||
4.2 服务发现与负载均衡
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.2.1" data-path="../practice/traefik-ingress-installation.html">
|
||
|
||
<a href="../practice/traefik-ingress-installation.html">
|
||
|
||
|
||
4.2.1 安装Traefik ingress
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.2.2" data-path="../practice/distributed-load-test.html">
|
||
|
||
<a href="../practice/distributed-load-test.html">
|
||
|
||
|
||
4.2.2 分布式负载测试
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.2.3" data-path="../practice/network-and-cluster-perfermance-test.html">
|
||
|
||
<a href="../practice/network-and-cluster-perfermance-test.html">
|
||
|
||
|
||
4.2.3 网络和集群性能测试
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.2.4" data-path="../practice/edge-node-configuration.html">
|
||
|
||
<a href="../practice/edge-node-configuration.html">
|
||
|
||
|
||
4.2.4 边缘节点配置
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.2.5" data-path="../practice/nginx-ingress-installation.html">
|
||
|
||
<a href="../practice/nginx-ingress-installation.html">
|
||
|
||
|
||
4.2.5 安装Nginx ingress
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.3" data-path="../practice/operation.html">
|
||
|
||
<a href="../practice/operation.html">
|
||
|
||
|
||
4.3 运维管理
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.3.1" data-path="../practice/service-rolling-update.html">
|
||
|
||
<a href="../practice/service-rolling-update.html">
|
||
|
||
|
||
4.3.1 服务滚动升级
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.3.2" data-path="../practice/app-log-collection.html">
|
||
|
||
<a href="../practice/app-log-collection.html">
|
||
|
||
|
||
4.3.2 应用日志收集
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.3.3" data-path="../practice/configuration-best-practice.html">
|
||
|
||
<a href="../practice/configuration-best-practice.html">
|
||
|
||
|
||
4.3.3 配置最佳实践
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.3.4" data-path="../practice/monitor.html">
|
||
|
||
<a href="../practice/monitor.html">
|
||
|
||
|
||
4.3.4 集群及应用监控
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.3.5" data-path="../practice/data-persistence-problem.html">
|
||
|
||
<a href="../practice/data-persistence-problem.html">
|
||
|
||
|
||
4.3.6 数据持久化问题
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.3.6" data-path="../practice/manage-compute-resources-container.html">
|
||
|
||
<a href="../practice/manage-compute-resources-container.html">
|
||
|
||
|
||
4.3.7 管理容器的计算资源
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.4" data-path="../practice/storage.html">
|
||
|
||
<a href="../practice/storage.html">
|
||
|
||
|
||
4.4 存储管理
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.4.1" data-path="../practice/glusterfs.html">
|
||
|
||
<a href="../practice/glusterfs.html">
|
||
|
||
|
||
4.4.1 GlusterFS
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.4.1.1" data-path="../practice/using-glusterfs-for-persistent-storage.html">
|
||
|
||
<a href="../practice/using-glusterfs-for-persistent-storage.html">
|
||
|
||
|
||
4.4.1.1 使用GlusterFS做持久化存储
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.4.1.2" data-path="../practice/storage-for-containers-using-glusterfs-with-openshift.html">
|
||
|
||
<a href="../practice/storage-for-containers-using-glusterfs-with-openshift.html">
|
||
|
||
|
||
4.4.1.2 在OpenShift中使用GlusterFS做持久化存储
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.4.2" data-path="../practice/cephfs.html">
|
||
|
||
<a href="../practice/cephfs.html">
|
||
|
||
|
||
4.4.2 CephFS
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.4.2.1" data-path="../practice/using-ceph-for-persistent-storage.html">
|
||
|
||
<a href="../practice/using-ceph-for-persistent-storage.html">
|
||
|
||
|
||
4.4.2.1 使用Ceph做持久化存储
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.5" data-path="../practice/monitoring.html">
|
||
|
||
<a href="../practice/monitoring.html">
|
||
|
||
|
||
4.5 集群与应用监控
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.5.1" data-path="../practice/heapster.html">
|
||
|
||
<a href="../practice/heapster.html">
|
||
|
||
|
||
4.5.1 Heapster
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.5.1.1" data-path="../practice/using-heapster-to-get-object-metrics.html">
|
||
|
||
<a href="../practice/using-heapster-to-get-object-metrics.html">
|
||
|
||
|
||
4.5.1.1 使用Heapster获取集群和对象的metric数据
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.5.2" data-path="../practice/prometheus.html">
|
||
|
||
<a href="../practice/prometheus.html">
|
||
|
||
|
||
4.5.2 Prometheus
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.5.2.1" data-path="../practice/using-prometheus-to-monitor-kuberentes-cluster.html">
|
||
|
||
<a href="../practice/using-prometheus-to-monitor-kuberentes-cluster.html">
|
||
|
||
|
||
4.5.2.1 使用Prometheus监控kubernetes集群
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.6" data-path="../practice/services-management-tool.html">
|
||
|
||
<a href="../practice/services-management-tool.html">
|
||
|
||
|
||
4.6 服务编排管理
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.6.1" data-path="../practice/helm.html">
|
||
|
||
<a href="../practice/helm.html">
|
||
|
||
|
||
4.6.1 使用Helm管理kubernetes应用
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.6.2" data-path="../practice/create-private-charts-repo.html">
|
||
|
||
<a href="../practice/create-private-charts-repo.html">
|
||
|
||
|
||
4.6.2 构建私有Chart仓库
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.7" data-path="../practice/ci-cd.html">
|
||
|
||
<a href="../practice/ci-cd.html">
|
||
|
||
|
||
4.7 持续集成与发布
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.7.1" data-path="../practice/jenkins-ci-cd.html">
|
||
|
||
<a href="../practice/jenkins-ci-cd.html">
|
||
|
||
|
||
4.7.1 使用Jenkins进行持续集成与发布
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.7.2" data-path="../practice/drone-ci-cd.html">
|
||
|
||
<a href="../practice/drone-ci-cd.html">
|
||
|
||
|
||
4.7.2 使用Drone进行持续集成与发布
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.8" data-path="../practice/update-and-upgrade.html">
|
||
|
||
<a href="../practice/update-and-upgrade.html">
|
||
|
||
|
||
4.8 更新与升级
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.8.1" data-path="../practice/manually-upgrade.html">
|
||
|
||
<a href="../practice/manually-upgrade.html">
|
||
|
||
|
||
4.8.1 手动升级kubernetes集群
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.8.2" data-path="../practice/dashboard-upgrade.html">
|
||
|
||
<a href="../practice/dashboard-upgrade.html">
|
||
|
||
|
||
4.8.2 升级dashboard
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.6" data-path="../usecases/">
|
||
|
||
<a href="../usecases/">
|
||
|
||
|
||
5. 领域应用
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.6.1" data-path="../usecases/microservices.html">
|
||
|
||
<a href="../usecases/microservices.html">
|
||
|
||
|
||
5.1 微服务架构
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.6.1.1" data-path="../usecases/service-discovery-in-microservices.html">
|
||
|
||
<a href="../usecases/service-discovery-in-microservices.html">
|
||
|
||
|
||
5.1.1 微服务中的服务发现
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.6.2" data-path="../usecases/service-mesh.html">
|
||
|
||
<a href="../usecases/service-mesh.html">
|
||
|
||
|
||
5.2 Service Mesh 服务网格
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.6.2.1" data-path="../usecases/istio.html">
|
||
|
||
<a href="../usecases/istio.html">
|
||
|
||
|
||
5.1.1 Istio
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.6.2.1.1" data-path="../usecases/istio-installation.html">
|
||
|
||
<a href="../usecases/istio-installation.html">
|
||
|
||
|
||
5.1.1.1 安装并试用Istio service mesh
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.6.2.1.2" data-path="../usecases/configuring-request-routing.html">
|
||
|
||
<a href="../usecases/configuring-request-routing.html">
|
||
|
||
|
||
5.1.1.2 配置请求的路由规则
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.6.2.1.3" data-path="../usecases/install-and-expand-istio-mesh.html">
|
||
|
||
<a href="../usecases/install-and-expand-istio-mesh.html">
|
||
|
||
|
||
5.1.1.3 安装和拓展Istio service mesh
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.6.2.1.4" data-path="../usecases/integrating-vms.html">
|
||
|
||
<a href="../usecases/integrating-vms.html">
|
||
|
||
|
||
5.1.1.4 集成虚拟机
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.6.2.2" data-path="../usecases/linkerd.html">
|
||
|
||
<a href="../usecases/linkerd.html">
|
||
|
||
|
||
5.1.2 Linkerd
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.6.2.2.1" data-path="../usecases/linkerd-user-guide.html">
|
||
|
||
<a href="../usecases/linkerd-user-guide.html">
|
||
|
||
|
||
5.1.2.1 Linkerd 使用指南
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.6.3" data-path="../usecases/big-data.html">
|
||
|
||
<a href="../usecases/big-data.html">
|
||
|
||
|
||
5.2 大数据
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.6.3.1" data-path="../usecases/spark-standalone-on-kubernetes.html">
|
||
|
||
<a href="../usecases/spark-standalone-on-kubernetes.html">
|
||
|
||
|
||
5.2.1 Spark standalone on Kubernetes
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.6.3.2" data-path="../usecases/running-spark-with-kubernetes-native-scheduler.html">
|
||
|
||
<a href="../usecases/running-spark-with-kubernetes-native-scheduler.html">
|
||
|
||
|
||
5.2.2 运行支持kubernetes原生调度的Spark程序
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.6.4" data-path="../usecases/serverless.html">
|
||
|
||
<a href="../usecases/serverless.html">
|
||
|
||
|
||
5.3 Serverless架构
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.6.5" data-path="../usecases/edge-computing.html">
|
||
|
||
<a href="../usecases/edge-computing.html">
|
||
|
||
|
||
5.4 边缘计算
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.7" data-path="../develop/">
|
||
|
||
<a href="../develop/">
|
||
|
||
|
||
6. 开发指南
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.7.1" data-path="../develop/developing-environment.html">
|
||
|
||
<a href="../develop/developing-environment.html">
|
||
|
||
|
||
6.1 开发环境搭建
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.7.2" data-path="../develop/testing.html">
|
||
|
||
<a href="../develop/testing.html">
|
||
|
||
|
||
6.2 单元测试和集成测试
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.7.3" data-path="../develop/client-go-sample.html">
|
||
|
||
<a href="../develop/client-go-sample.html">
|
||
|
||
|
||
6.3 client-go示例
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.7.4" data-path="../develop/contribute.html">
|
||
|
||
<a href="../develop/contribute.html">
|
||
|
||
|
||
6.4 社区贡献
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.7.5" data-path="../develop/minikube.html">
|
||
|
||
<a href="../develop/minikube.html">
|
||
|
||
|
||
6.5 Minikube
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.8" data-path="../appendix/">
|
||
|
||
<a href="../appendix/">
|
||
|
||
|
||
7. 附录
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.8.1" data-path="../appendix/docker-best-practice.html">
|
||
|
||
<a href="../appendix/docker-best-practice.html">
|
||
|
||
|
||
7.1 Docker最佳实践
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.8.2" data-path="../appendix/issues.html">
|
||
|
||
<a href="../appendix/issues.html">
|
||
|
||
|
||
7.2 问题记录
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.8.3" data-path="../appendix/tricks.html">
|
||
|
||
<a href="../appendix/tricks.html">
|
||
|
||
|
||
7.3 使用技巧
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.8.4" data-path="../appendix/debug-kubernetes-services.html">
|
||
|
||
<a href="../appendix/debug-kubernetes-services.html">
|
||
|
||
|
||
7.4 kubernetes中的应用故障排查
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.8.5" data-path="../appendix/material-share.html">
|
||
|
||
<a href="../appendix/material-share.html">
|
||
|
||
|
||
7.5 Kubernetes相关资讯和情报链接
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</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=".." >2.2.1.4 Pod的生命周期</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="pod-的生命周期">Pod 的生命周期</h1>
|
||
<h2 id="pod-phase">Pod phase</h2>
|
||
<p>Pod 的 <code>status</code> 在信息保存在 <a href="https://kubernetes.io/docs/resources-reference/v1.7/#podstatus-v1-core" target="_blank">PodStatus</a> 中定义，其中有一个 <code>phase</code> 字段。</p>
|
||
<p>Pod 的相位（phase）是 Pod 在其生命周期中的简单宏观概述。该阶段并不是对容器或 Pod 的综合汇总，也不是为了做为综合状态机。</p>
|
||
<p>Pod 相位的数量和含义是严格指定的。除了本文档中列举的状态外，不应该再假定 Pod 有其他的 <code>phase</code> 值。</p>
|
||
<p>下面是 <code>phase</code> 可能的值：</p>
|
||
<ul>
|
||
<li>挂起（Pending）：Pod 已被 Kubernetes 系统接受，但有一个或者多个容器镜像尚未创建。等待时间包括调度 Pod 的时间和通过网络下载镜像的时间，这可能需要花点时间。</li>
|
||
<li>运行中（Running）：该 Pod 已经绑定到了一个节点上，Pod 中所有的容器都已被创建。至少有一个容器正在运行，或者正处于启动或重启状态。</li>
|
||
<li>成功（Successed）：Pod 中的所有容器都被成功终止，并且不会再重启。</li>
|
||
<li>失败（Failed）：Pod 中的所有容器都已终止了，并且至少有一个容器是因为失败终止。也就是说，容器以非0状态退出或者被系统终止。</li>
|
||
<li>未知（Unkonwn）：因为某些原因无法取得 Pod 的状态，通常是因为与 Pod 所在主机通信失败。</li>
|
||
</ul>
|
||
<h2 id="pod-状态">Pod 状态</h2>
|
||
<p>Pod 有一个 PodStatus 对象，其中包含一个 <a href="https://kubernetes.io/docs/resources-reference/v1.7/#podcondition-v1-core" target="_blank">PodCondition</a> 数组。 PodCondition 数组的每个元素都有一个 <code>type</code> 字段和一个 <code>status</code> 字段。<code>type</code> 字段是字符串，可能的值有 PodScheduled、Ready、Initialized 和 Unschedulable。<code>status</code> 字段是一个字符串，可能的值有 True、False 和 Unknown。</p>
|
||
<h2 id="容器探针">容器探针</h2>
|
||
<p><a href="https://kubernetes.io/docs/resources-reference/v1.7/#probe-v1-core" target="_blank">探针</a> 是由 <a href="https://kubernetes.io/docs/admin/kubelet/" target="_blank">kubelet</a> 对容器执行的定期诊断。要执行诊断，kubelet 调用由容器实现的 <a href="https://godoc.org/k8s.io/kubernetes/pkg/api/v1#Handler" target="_blank">Handler</a>。有三种类型的处理程序：</p>
|
||
<ul>
|
||
<li><a href="https://kubernetes.io/docs/resources-reference/v1.7/#execaction-v1-core" target="_blank">ExecAction</a>：在容器内执行指定命令。如果命令退出时返回码为 0 则认为诊断成功。</li>
|
||
<li><a href="https://kubernetes.io/docs/resources-reference/v1.7/#tcpsocketaction-v1-core" target="_blank">TCPSocketAction</a>：对指定端口上的容器的 IP 地址进行 TCP 检查。如果端口打开，则诊断被认为是成功的。</li>
|
||
<li><a href="https://kubernetes.io/docs/resources-reference/v1.7/#httpgetaction-v1-core" target="_blank">HTTPGetAction</a>：对指定的端口和路径上的容器的 IP 地址执行 HTTP Get 请求。如果响应的状态码大于等于200 且小于 400，则诊断被认为是成功的。</li>
|
||
</ul>
|
||
<p>每次探测都将获得以下三种结果之一：</p>
|
||
<ul>
|
||
<li>成功：容器通过了诊断。</li>
|
||
<li>失败：容器未通过诊断。</li>
|
||
<li>未知：诊断失败，因此不会采取任何行动。</li>
|
||
</ul>
|
||
<p>Kubelet 可以选择是否执行在容器上运行的两种探针执行和做出反应：</p>
|
||
<ul>
|
||
<li><code>livenessProbe</code>：指示容器是否正在运行。如果存活探测失败，则 kubelet 会杀死容器，并且容器将受到其 <a href="https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/#restart-policy" target="_blank">重启策略</a> 的影响。如果容器不提供存活探针，则默认状态为 <code>Success</code>。</li>
|
||
<li><code>readinessProbe</code>：指示容器是否准备好服务请求。如果就绪探测失败，端点控制器将从与 Pod 匹配的所有 Service 的端点中删除该 Pod 的 IP 地址。初始延迟之前的就绪状态默认为 <code>Failure</code>。如果容器不提供就绪探针，则默认状态为 <code>Success</code>。</li>
|
||
</ul>
|
||
<h3 id="该什么时候使用存活（liveness）和就绪（readiness）探针">该什么时候使用存活（liveness）和就绪（readiness）探针?</h3>
|
||
<p>如果容器中的进程能够在遇到问题或不健康的情况下自行崩溃，则不一定需要存活探针; kubelet 将根据 Pod 的<code>restartPolicy</code> 自动执行正确的操作。</p>
|
||
<p>如果您希望容器在探测失败时被杀死并重新启动，那么请指定一个存活探针，并指定<code>restartPolicy</code> 为 Always 或 OnFailure。</p>
|
||
<p>如果要仅在探测成功时才开始向 Pod 发送流量，请指定就绪探针。在这种情况下，就绪探针可能与存活探针相同，但是 spec 中的就绪探针的存在意味着 Pod 将在没有接收到任何流量的情况下启动，并且只有在探针探测成功后才开始接收流量。</p>
|
||
<p>如果您希望容器能够自行维护，您可以指定一个就绪探针，该探针检查与存活探针不同的端点。</p>
|
||
<p>请注意，如果您只想在 Pod 被删除时能够排除请求，则不一定需要使用就绪探针；在删除 Pod 时，Pod 会自动将自身置于未完成状态，无论就绪探针是否存在。当等待 Pod 中的容器停止时，Pod 仍处于未完成状态。</p>
|
||
<h2 id="pod-和容器状态">Pod 和容器状态</h2>
|
||
<p>有关 Pod 容器状态的详细信息，请参阅 <a href="https://kubernetes.io/docs/resources-reference/v1.7/#podstatus-v1-core" target="_blank">PodStatus</a> 和 <a href="https://kubernetes.io/docs/resources-reference/v1.7/#containerstatus-v1-core" target="_blank">ContainerStatus</a>。请注意，报告的 Pod 状态信息取决于当前的 <a href="https://kubernetes.io/docs/resources-reference/v1.7/#containerstatus-v1-core" target="_blank">ContainerState</a>。</p>
|
||
<h2 id="重启策略">重启策略</h2>
|
||
<p>PodSpec 中有一个 <code>restartPolicy</code> 字段，可能的值为 Always、OnFailure 和 Never。默认为 Always。 <code>restartPolicy</code> 适用于 Pod 中的所有容器。<code>restartPolicy</code> 仅指通过同一节点上的 kubelet 重新启动容器。失败的容器由 kubelet 以五分钟为上限的指数退避延迟（10秒，20秒，40秒...）重新启动，并在成功执行十分钟后重置。如 <a href="https://kubernetes.io/docs/user-guide/pods/#durability-of-pods-or-lack-thereof" target="_blank">Pod 文档</a> 中所述，一旦绑定到一个节点，Pod 将永远不会重新绑定到另一个节点。</p>
|
||
<h2 id="pod-的生命">Pod 的生命</h2>
|
||
<p>一般来说，Pod 不会消失，直到人为销毁他们。这可能是一个人或控制器。这个规则的唯一例外是成功或失败的 <code>phase</code> 超过一段时间（由 master 确定）的Pod将过期并被自动销毁。</p>
|
||
<p>有三种可用的控制器：</p>
|
||
<ul>
|
||
<li>使用 <a href="https://kubernetes.io/docs/concepts/jobs/run-to-completion-finite-workloads/" target="_blank">Job</a> 运行预期会终止的 Pod，例如批量计算。Job 仅适用于重启策略为 <code>OnFailure</code> 或 <code>Never</code> 的 Pod。</li>
|
||
</ul>
|
||
<ul>
|
||
<li>对预期不会终止的 Pod 使用 <a href="https://kubernetes.io/docs/concepts/workloads/controllers/replicationcontroller/" target="_blank">ReplicationController</a>、<a href="https://kubernetes.io/docs/concepts/workloads/controllers/replicaset/" target="_blank">ReplicaSet</a> 和 <a href="https://kubernetes.io/docs/concepts/workloads/controllers/deployment/" target="_blank">Deployment</a> ，例如 Web 服务器。 ReplicationController 仅适用于具有 <code>restartPolicy</code> 为 Always 的 Pod。</li>
|
||
<li>提供特定于机器的系统服务，使用 <a href="https://kubernetes.io/docs/concepts/workloads/controllers/daemonset/" target="_blank">DaemonSet</a> 为每台机器运行一个 Pod 。</li>
|
||
</ul>
|
||
<p>所有这三种类型的控制器都包含一个 PodTemplate。建议创建适当的控制器，让它们来创建 Pod，而不是直接自己创建 Pod。这是因为单独的 Pod 在机器故障的情况下没有办法自动复原，而控制器却可以。</p>
|
||
<p>如果节点死亡或与集群的其余部分断开连接，则 Kubernetes 将应用一个策略将丢失节点上的所有 Pod 的 <code>phase</code> 设置为 Failed。</p>
|
||
<h2 id="示例">示例</h2>
|
||
<h3 id="高级-liveness-探针示例">高级 liveness 探针示例</h3>
|
||
<p>存活探针由 kubelet 来执行，因此所有的请求都在 kubelet 的网络命名空间中进行。</p>
|
||
<pre><code class="lang-yaml"><span class="hljs-attr">apiVersion:</span> v1
|
||
<span class="hljs-attr">kind:</span> Pod
|
||
<span class="hljs-attr">metadata:</span>
|
||
<span class="hljs-attr"> labels:</span>
|
||
<span class="hljs-attr"> test:</span> liveness
|
||
<span class="hljs-attr"> name:</span> liveness-http
|
||
<span class="hljs-attr">spec:</span>
|
||
<span class="hljs-attr"> containers:</span>
|
||
<span class="hljs-attr"> - args:</span>
|
||
<span class="hljs-bullet"> -</span> /server
|
||
<span class="hljs-attr"> image:</span> gcr.io/google_containers/liveness
|
||
<span class="hljs-attr"> livenessProbe:</span>
|
||
<span class="hljs-attr"> httpGet:</span>
|
||
<span class="hljs-comment"># when "host" is not defined, "PodIP" will be used</span>
|
||
<span class="hljs-comment"># host: my-host</span>
|
||
<span class="hljs-comment"># when "scheme" is not defined, "HTTP" scheme will be used. Only "HTTP" and "HTTPS" are allowed</span>
|
||
<span class="hljs-comment"># scheme: HTTPS</span>
|
||
<span class="hljs-attr"> path:</span> /healthz
|
||
<span class="hljs-attr"> port:</span> <span class="hljs-number">8080</span>
|
||
<span class="hljs-attr"> httpHeaders:</span>
|
||
<span class="hljs-attr"> - name:</span> X-Custom-Header
|
||
<span class="hljs-attr"> value:</span> Awesome
|
||
<span class="hljs-attr"> initialDelaySeconds:</span> <span class="hljs-number">15</span>
|
||
<span class="hljs-attr"> timeoutSeconds:</span> <span class="hljs-number">1</span>
|
||
<span class="hljs-attr"> name:</span> liveness
|
||
</code></pre>
|
||
<h3 id="状态示例">状态示例</h3>
|
||
<ul>
|
||
<li>Pod 中只有一个容器并且正在运行。容器成功退出。<ul>
|
||
<li>记录完成事件。</li>
|
||
<li>如果 <code>restartPolicy</code> 为：<ul>
|
||
<li>Always：重启容器；Pod <code>phase</code> 仍为 Running。</li>
|
||
<li>OnFailure：Pod <code>phase</code> 变成 Succeeded。</li>
|
||
<li>Never：Pod <code>phase</code> 变成 Succeeded。</li>
|
||
</ul>
|
||
</li>
|
||
</ul>
|
||
</li>
|
||
<li>Pod 中只有一个容器并且正在运行。容器退出失败。<ul>
|
||
<li>记录失败事件。</li>
|
||
<li>如果 <code>restartPolicy</code> 为：<ul>
|
||
<li>Always：重启容器；Pod <code>phase</code> 仍为 Running。</li>
|
||
<li>OnFailure：重启容器；Pod <code>phase</code> 仍为 Running。</li>
|
||
<li>Never：Pod <code>phase</code> 变成 Failed。</li>
|
||
</ul>
|
||
</li>
|
||
</ul>
|
||
</li>
|
||
<li><p>Pod 中有两个容器并且正在运行。有一个容器退出失败。</p>
|
||
<ul>
|
||
<li>记录失败事件。</li>
|
||
<li><p>如果 restartPolicy 为：</p>
|
||
<ul>
|
||
<li>Always：重启容器；Pod <code>phase</code> 仍为 Running。</li>
|
||
<li>OnFailure：重启容器；Pod <code>phase</code> 仍为 Running。</li>
|
||
<li>Never：不重启容器；Pod <code>phase</code> 仍为 Running。</li>
|
||
</ul>
|
||
</li>
|
||
<li><p>如果有一个容器没有处于运行状态，并且两个容器退出：</p>
|
||
<ul>
|
||
<li>记录失败事件。</li>
|
||
<li>如果 <code>restartPolicy</code> 为：<ul>
|
||
<li>Always：重启容器；Pod <code>phase</code> 仍为 Running。</li>
|
||
<li>OnFailure：重启容器；Pod <code>phase</code> 仍为 Running。</li>
|
||
<li>Never：Pod <code>phase</code> 变成 Failed。</li>
|
||
</ul>
|
||
</li>
|
||
</ul>
|
||
</li>
|
||
</ul>
|
||
</li>
|
||
<li>Pod 中只有一个容器并处于运行状态。容器运行时内存超出限制：<ul>
|
||
<li>容器以失败状态终止。</li>
|
||
<li>记录 OOM 事件。</li>
|
||
<li>如果 <code>restartPolicy</code> 为：<ul>
|
||
<li>Always：重启容器；Pod <code>phase</code> 仍为 Running。</li>
|
||
<li>OnFailure：重启容器；Pod <code>phase</code> 仍为 Running。</li>
|
||
<li>Never: 记录失败事件；Pod <code>phase</code> 仍为 Failed。</li>
|
||
</ul>
|
||
</li>
|
||
</ul>
|
||
</li>
|
||
<li>Pod 正在运行，磁盘故障：<ul>
|
||
<li>杀掉所有容器。</li>
|
||
<li>记录适当事件。</li>
|
||
<li>Pod <code>phase</code> 变成 Failed。</li>
|
||
<li>如果使用控制器来运行，Pod 将在别处重建。</li>
|
||
</ul>
|
||
</li>
|
||
<li>Pod 正在运行，其节点被分段。<ul>
|
||
<li>节点控制器等待直到超时。</li>
|
||
<li>节点控制器将 Pod <code>phase</code> 设置为 Failed。</li>
|
||
<li>如果是用控制器来运行，Pod 将在别处重建。</li>
|
||
</ul>
|
||
</li>
|
||
</ul>
|
||
<p>原文地址：<a href="https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/" target="_blank">https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/</a></p>
|
||
<p>翻译：<a href="https://github.com/rootsongjc" target="_blank">rootsongjc</a> </p>
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<footer class="page-footer"><span class="copyright">Copyright © jimmysong.io 2017 all right reserved，powered by Gitbook</span><span class="footer-modification">Updated:
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<script src="../gitbook/gitbook-plugin-fontsettings/fontsettings.js"></script>
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||
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</body>
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||
</html>
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