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序言
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1. Kubernetes与云原生应用概览
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2.1 设计理念
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2.2 Objects
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<a href="../concepts/pod-overview.html">
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2.2.1 Pod
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<ul class="articles">
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<a href="../concepts/pod.html">
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2.2.1.1 Pod解析
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<li class="chapter " data-level="1.3.2.1.2" data-path="../concepts/init-containers.html">
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<a href="../concepts/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="../concepts/pod-security-policy.html">
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<a href="../concepts/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 class="chapter " data-level="1.3.2.1.4" data-path="../concepts/pod-lifecycle.html">
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<a href="../concepts/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="../concepts/node.html">
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<a href="../concepts/node.html">
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2.2.2 Node
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</a>
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<li class="chapter " data-level="1.3.2.3" data-path="../concepts/namespace.html">
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<a href="../concepts/namespace.html">
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2.2.3 Namespace
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</a>
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<li class="chapter " data-level="1.3.2.4" data-path="../concepts/service.html">
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<a href="../concepts/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="../concepts/volume.html">
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<a href="../concepts/volume.html">
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2.2.5 Volume和Persistent Volume
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</a>
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<li class="chapter " data-level="1.3.2.6" data-path="../concepts/deployment.html">
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<a href="../concepts/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="../concepts/secret.html">
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<a href="../concepts/secret.html">
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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="../concepts/statefulset.html">
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<a href="../concepts/statefulset.html">
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2.2.8 StatefulSet
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|
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</a>
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</li>
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<li class="chapter " data-level="1.3.2.9" data-path="../concepts/daemonset.html">
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<a href="../concepts/daemonset.html">
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2.2.9 DaemonSet
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||
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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="../concepts/serviceaccount.html">
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<a href="../concepts/serviceaccount.html">
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2.2.10 ServiceAccount
|
||
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</a>
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</li>
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<li class="chapter " data-level="1.3.2.11" data-path="../concepts/replicaset.html">
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<a href="../concepts/replicaset.html">
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||
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2.2.11 ReplicationController和ReplicaSet
|
||
|
||
</a>
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</li>
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<li class="chapter " data-level="1.3.2.12" data-path="../concepts/job.html">
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<a href="../concepts/job.html">
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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="../concepts/cronjob.html">
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|
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<a href="../concepts/cronjob.html">
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||
|
||
|
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2.2.13 CronJob
|
||
|
||
</a>
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||
|
||
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||
|
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</li>
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|
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<li class="chapter " data-level="1.3.2.14" data-path="../concepts/ingress.html">
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<a href="../concepts/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="../concepts/configmap.html">
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<a href="../concepts/configmap.html">
|
||
|
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|
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2.2.15 ConfigMap
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
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|
||
<li class="chapter " data-level="1.3.2.16" data-path="../concepts/horizontal-pod-autoscaling.html">
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<a href="../concepts/horizontal-pod-autoscaling.html">
|
||
|
||
|
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2.2.16 Horizontal Pod Autoscaling
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
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|
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<li class="chapter " data-level="1.3.2.17" data-path="../concepts/label.html">
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<a href="../concepts/label.html">
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2.2.17 Label
|
||
|
||
</a>
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||
|
||
|
||
|
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</li>
|
||
|
||
<li class="chapter " data-level="1.3.2.18" data-path="../concepts/garbage-collection.html">
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||
|
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<a href="../concepts/garbage-collection.html">
|
||
|
||
|
||
2.2.18 垃圾收集
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.3.2.19" data-path="../concepts/network-policy.html">
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|
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<a href="../concepts/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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</ul>
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</li>
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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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<a href="../guide/">
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3. 用户指南
|
||
|
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</a>
|
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|
||
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|
||
<ul class="articles">
|
||
|
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<li class="chapter " data-level="1.4.1" data-path="../guide/resource-configuration.html">
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<a href="../guide/resource-configuration.html">
|
||
|
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|
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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>
|
||
|
||
|
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</ul>
|
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|
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</li>
|
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|
||
<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="./">
|
||
|
||
<a href="./">
|
||
|
||
|
||
4. 最佳实践
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.1" data-path="install-kbernetes1.6-on-centos.html">
|
||
|
||
<a href="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="create-tls-and-secret-key.html">
|
||
|
||
<a href="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="create-kubeconfig.html">
|
||
|
||
<a href="create-kubeconfig.html">
|
||
|
||
|
||
4.1.2 创建kubeconfig文件
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.1.3" data-path="etcd-cluster-installation.html">
|
||
|
||
<a href="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="kubectl-installation.html">
|
||
|
||
<a href="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="master-installation.html">
|
||
|
||
<a href="master-installation.html">
|
||
|
||
|
||
4.1.5 部署master节点
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.1.6" data-path="node-installation.html">
|
||
|
||
<a href="node-installation.html">
|
||
|
||
|
||
4.1.6 部署node节点
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.1.7" data-path="kubedns-addon-installation.html">
|
||
|
||
<a href="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="dashboard-addon-installation.html">
|
||
|
||
<a href="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="heapster-addon-installation.html">
|
||
|
||
<a href="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="efk-addon-installation.html">
|
||
|
||
<a href="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="service-discovery-and-loadbalancing.html">
|
||
|
||
<a href="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="traefik-ingress-installation.html">
|
||
|
||
<a href="traefik-ingress-installation.html">
|
||
|
||
|
||
4.2.1 安装Traefik ingress
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.2.2" data-path="distributed-load-test.html">
|
||
|
||
<a href="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="network-and-cluster-perfermance-test.html">
|
||
|
||
<a href="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="edge-node-configuration.html">
|
||
|
||
<a href="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="nginx-ingress-installation.html">
|
||
|
||
<a href="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="operation.html">
|
||
|
||
<a href="operation.html">
|
||
|
||
|
||
4.3 运维管理
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.3.1" data-path="service-rolling-update.html">
|
||
|
||
<a href="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="app-log-collection.html">
|
||
|
||
<a href="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="configuration-best-practice.html">
|
||
|
||
<a href="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="monitor.html">
|
||
|
||
<a href="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="data-persistence-problem.html">
|
||
|
||
<a href="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="manage-compute-resources-container.html">
|
||
|
||
<a href="manage-compute-resources-container.html">
|
||
|
||
|
||
4.3.7 管理容器的计算资源
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.3.7" data-path="using-prometheus-to-monitor-kuberentes-cluster.html">
|
||
|
||
<a href="using-prometheus-to-monitor-kuberentes-cluster.html">
|
||
|
||
|
||
4.3.8 使用Prometheus监控kubernetes集群
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.3.8" data-path="using-heapster-to-get-object-metrics.html">
|
||
|
||
<a href="using-heapster-to-get-object-metrics.html">
|
||
|
||
|
||
4.3.9 使用Heapster获取集群和对象的metric数据
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.4" data-path="storage.html">
|
||
|
||
<a href="storage.html">
|
||
|
||
|
||
4.4 存储管理
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.4.1" data-path="glusterfs.html">
|
||
|
||
<a href="glusterfs.html">
|
||
|
||
|
||
4.4.1 GlusterFS
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.4.1.1" data-path="using-glusterfs-for-persistent-storage.html">
|
||
|
||
<a href="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="storage-for-containers-using-glusterfs-with-openshift.html">
|
||
|
||
<a href="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="cephfs.html">
|
||
|
||
<a href="cephfs.html">
|
||
|
||
|
||
4.4.2 CephFS
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter active" data-level="1.5.4.2.1" data-path="using-ceph-for-persistent-storage.html">
|
||
|
||
<a href="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="services-management-tool.html">
|
||
|
||
<a href="services-management-tool.html">
|
||
|
||
|
||
4.5 服务编排管理
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.5.1" data-path="helm.html">
|
||
|
||
<a href="helm.html">
|
||
|
||
|
||
4.5.1 使用Helm管理kubernetes应用
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.5.2" data-path="create-private-charts-repo.html">
|
||
|
||
<a href="create-private-charts-repo.html">
|
||
|
||
|
||
4.5.2 构建私有Chart仓库
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.6" data-path="ci-cd.html">
|
||
|
||
<a href="ci-cd.html">
|
||
|
||
|
||
4.6 持续集成与发布
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.6.1" data-path="jenkins-ci-cd.html">
|
||
|
||
<a href="jenkins-ci-cd.html">
|
||
|
||
|
||
4.6.1 使用Jenkins进行持续集成与发布
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.6.2" data-path="drone-ci-cd.html">
|
||
|
||
<a href="drone-ci-cd.html">
|
||
|
||
|
||
4.6.2 使用Drone进行持续集成与发布
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.7" data-path="update-and-upgrade.html">
|
||
|
||
<a href="update-and-upgrade.html">
|
||
|
||
|
||
4.7 更新与升级
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.7.1" data-path="manually-upgrade.html">
|
||
|
||
<a href="manually-upgrade.html">
|
||
|
||
|
||
4.7.1 手动升级kubernetes集群
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.7.2" data-path="dashboard-upgrade.html">
|
||
|
||
<a href="dashboard-upgrade.html">
|
||
|
||
|
||
4.7.2 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istio
|
||
|
||
</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>
|
||
|
||
|
||
</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=".." >4.4.2.1 使用Ceph做持久化存储</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ceph做持久化存储创建mysql集群">使用Ceph做持久化存储创建MySQL集群</h1>
|
||
<p>本文中用到的 yaml 文件可以在 <a href="https://github.com/rootsongjc/kubernetes-handbook/blob/master/manifests/mariadb-cluster" target="_blank">../manifests/mariadb-cluster</a> 目录下找到。</p>
|
||
<p>下面我们以部署一个高可用的 MySQL 集群为例，讲解如何使用 Ceph 做数据持久化，其中使用 StorageClass 动态创建 PV，Ceph 集群我们使用 kubernetes 集群外部的已有的集群，我们没有必要重新部署了。</p>
|
||
<p>在 1.4 以后，kubernetes 提供了一种更加方便的动态创建 PV 的方式；也就是说使用 StoragaClass 时无需预先创建固定大小的 PV，等待使用者创建 PVC 来使用；而是直接创建 PVC 即可分配使用。</p>
|
||
<h2 id="使用-kubernetes-集群外部的-ceph-存储">使用 kubernetes 集群外部的 Ceph 存储</h2>
|
||
<p>在部署 kubernetes 之前我们就已经有了 Ceph 集群，因此我们可以直接拿来用。但是 kubernetes 的所有节点（尤其是 master 节点）上依然需要安装 ceph 客户端。</p>
|
||
<pre><code class="lang-bash">yum install -y ceph-common
|
||
</code></pre>
|
||
<p>还需要将 ceph 的配置文件 <code>ceph.conf</code> 放在所有节点的 <code>/etc/ceph</code> 目录下。</p>
|
||
<p>Kubernetes 使用 ceph 存储需要用到如下配置：</p>
|
||
<ul>
|
||
<li>Monitors: Ceph montors 列表</li>
|
||
<li>Path：作为挂载的根路径，默认是 /</li>
|
||
<li>User：RADOS用户名，默认是 admin</li>
|
||
<li>secretFile：keyring 文件路径，默认是 /etc/ceph/user.secret，我们 Ceph 集群提供的文件是 <code>ceph.client.admin.keyring</code>，将在下面用到</li>
|
||
<li>secretRef：Ceph 认证 secret 的引用，如果配置了将会覆盖 secretFile。</li>
|
||
<li>readOnly：该文件系统是否只读。</li>
|
||
</ul>
|
||
<h2 id="galera-cluster介绍">Galera Cluster介绍</h2>
|
||
<p>Galera是一个MySQL(也支持MariaDB，Percona)的同步多主集群软件。</p>
|
||
<p>从用户视角看，一组Galera集群可以看作一个具有多入口的MySQL库，用户可以同时从多个IP读写这个库。目前Galera已经得到广泛应用，例如Openstack中，在集群规模不大的情况下，稳定性已经得到了实践考验。真正的multi-master，即所有节点可以同时读写数据库。</p>
|
||
<h2 id="详细步骤">详细步骤</h2>
|
||
<p>以下步骤包括创建 Ceph 的配置 和 MySQL 的配置两部分。</p>
|
||
<h3 id="配置-ceph">配置 Ceph</h3>
|
||
<p>关于 Ceph 的 yaml 文件可以在 <a href="../manifests/cephfs">../manifest/cephfs</a> 目录下找到。</p>
|
||
<h4 id="1-生成-ceph-secret">1. 生成 Ceph secret</h4>
|
||
<p>使用 Ceph 管理员提供给你的 <code>ceph.client.admin.keyring</code> 文件，我们将它放在了 <code>/etc/ceph</code> 目录下，用来生成 secret。</p>
|
||
<pre><code class="lang-bash">grep key /etc/ceph/ceph.client.admin.keyring |awk <span class="hljs-string">'{printf "%s", $NF}'</span>|base64
|
||
</code></pre>
|
||
<p>将获得加密后的 key：<code>QVFDWDA2aFo5TG5TQnhBQVl1b0lUL2V3YlRSaEtwVEhPWkxvUlE9PQ==</code>，我们将在后面用到。</p>
|
||
<h4 id="2-创建租户namespace">2. 创建租户namespace</h4>
|
||
<p>创建 <code>galera-namespace.yaml</code> 文件内容为：</p>
|
||
<pre><code class="lang-yaml"><span class="hljs-attr">apiVersion:</span> v1
|
||
<span class="hljs-attr">kind:</span> Namespace
|
||
<span class="hljs-attr">metadata:</span>
|
||
<span class="hljs-attr"> name:</span> galera
|
||
</code></pre>
|
||
<h4 id="3-创建-ceph-secret">3. 创建 Ceph secret</h4>
|
||
<p>创建 <code>ceph-secret.yaml</code> 文件内容为：</p>
|
||
<pre><code class="lang-yaml"><span class="hljs-attr">apiVersion:</span> v1
|
||
<span class="hljs-attr">kind:</span> Secret
|
||
<span class="hljs-attr">metadata:</span>
|
||
<span class="hljs-attr"> name:</span> ceph-secret
|
||
<span class="hljs-attr"> namespace:</span> galera
|
||
<span class="hljs-attr">type:</span> <span class="hljs-string">"kubernetes.io/rbd"</span>
|
||
<span class="hljs-attr">data:</span>
|
||
<span class="hljs-attr"> key:</span> QVFDWDA2aFo5TG5TQnhBQVl1b0lUL2V3YlRSaEtwVEhPWkxvUlE9PQ==
|
||
</code></pre>
|
||
<h4 id="4-创建-storageclass">4. 创建 StorageClass</h4>
|
||
<p>创建 <code>ceph-class.yaml</code> 文件内容为：</p>
|
||
<pre><code class="lang-yaml"><span class="hljs-attr">apiVersion:</span> storage.k8s.io/v1
|
||
<span class="hljs-attr">kind:</span> StorageClass
|
||
<span class="hljs-attr">metadata:</span>
|
||
<span class="hljs-attr"> name:</span> ceph-web
|
||
<span class="hljs-attr">provisioner:</span> kubernetes.io/rbd
|
||
<span class="hljs-attr">parameters:</span>
|
||
<span class="hljs-attr"> monitors:</span> <span class="hljs-number">172.28</span><span class="hljs-number">.7</span><span class="hljs-number">.98</span>,<span class="hljs-number">172.28</span><span class="hljs-number">.7</span><span class="hljs-number">.99</span>,<span class="hljs-number">172.28</span><span class="hljs-number">.7</span><span class="hljs-number">.100</span>
|
||
<span class="hljs-attr"> adminId:</span> admin
|
||
<span class="hljs-attr"> adminSecretName:</span> ceph-secret
|
||
<span class="hljs-attr"> adminSecretNamespace:</span> galera
|
||
<span class="hljs-attr"> pool:</span> rbd <span class="hljs-comment">#此处默认是rbd池，生产上建议自己创建存储池隔离</span>
|
||
<span class="hljs-attr"> userId:</span> admin
|
||
<span class="hljs-attr"> userSecretName:</span> ceph-secret
|
||
</code></pre>
|
||
<p>此配置请参考 kubernetes 官方文档：<a href="https://kubernetes.io/docs/concepts/storage/persistent-volumes/#ceph-rbd" target="_blank">https://kubernetes.io/docs/concepts/storage/persistent-volumes/#ceph-rbd</a></p>
|
||
<h3 id="配置-mysql">配置 MySQL</h3>
|
||
<h4 id="1-创建-mysql-配置文件">1. 创建 MySQL 配置文件</h4>
|
||
<p>创建 <code>mysql-config.yaml</code> 文件内容为：</p>
|
||
<pre><code class="lang-yaml"><span class="hljs-attr">apiVersion:</span> v1
|
||
<span class="hljs-attr">kind:</span> ConfigMap
|
||
<span class="hljs-attr">metadata:</span>
|
||
<span class="hljs-attr"> name:</span> mysql-config-vol
|
||
<span class="hljs-attr"> namespace:</span> galera
|
||
<span class="hljs-attr"> labels:</span>
|
||
<span class="hljs-attr"> app:</span> mysql
|
||
<span class="hljs-attr">data:</span>
|
||
mariadb.cnf: <span class="hljs-string">|
|
||
[client]
|
||
default-character-set = utf8
|
||
[mysqld]
|
||
character-set-server = utf8
|
||
collation-server = utf8_general_ci
|
||
# InnoDB optimizations
|
||
innodb_log_file_size = 64M
|
||
galera.cnf: |
|
||
[galera]
|
||
user = mysql
|
||
bind-address = 0.0.0.0
|
||
# Optimizations
|
||
innodb_flush_log_at_trx_commit = 0
|
||
sync_binlog = 0
|
||
expire_logs_days = 7
|
||
# Required settings
|
||
default_storage_engine = InnoDB
|
||
binlog_format = ROW
|
||
innodb_autoinc_lock_mode = 2
|
||
query_cache_size = 0
|
||
query_cache_type = 0
|
||
# MariaDB Galera settings
|
||
#wsrep_debug=ON
|
||
wsrep_on=ON
|
||
wsrep_provider=/usr/lib/galera/libgalera_smm.so
|
||
wsrep_sst_method=rsync
|
||
# Cluster settings (automatically updated)
|
||
wsrep_cluster_address=gcomm://
|
||
wsrep_cluster_name=galera
|
||
wsrep_node_address=127.0.0.1
|
||
</span></code></pre>
|
||
<h4 id="2-创建-mysql-root-用户和密码">2. 创建 MySQL root 用户和密码</h4>
|
||
<p><strong>创建加密密码</strong></p>
|
||
<pre><code class="lang-bash">$ <span class="hljs-built_in">echo</span> -n jimmysong|base64
|
||
amltbXlzb25n
|
||
</code></pre>
|
||
<p>注意：一定要用-n 去掉换行符，不然会报错。</p>
|
||
<p><strong>创建 root 用户</strong></p>
|
||
<pre><code class="lang-bash">$ <span class="hljs-built_in">echo</span> -n root |base64
|
||
cm9vdA==
|
||
</code></pre>
|
||
<p><strong>创建 MySQL secret</strong></p>
|
||
<p>创建 <code>mysql-secret.yaml</code> 文件内容为：</p>
|
||
<pre><code class="lang-yaml"><span class="hljs-attr">apiVersion:</span> v1
|
||
<span class="hljs-attr">kind:</span> Secret
|
||
<span class="hljs-attr">metadata:</span>
|
||
<span class="hljs-attr"> name:</span> mysql-secrets
|
||
<span class="hljs-attr"> namespace:</span> galera
|
||
<span class="hljs-attr"> labels:</span>
|
||
<span class="hljs-attr"> app:</span> mysql
|
||
<span class="hljs-attr">data:</span>
|
||
<span class="hljs-comment"># Root password: changeit run echo -n jimmysong|base64</span>
|
||
<span class="hljs-attr"> root-password:</span> amltbXlzb25n
|
||
<span class="hljs-comment"># Root user: root</span>
|
||
<span class="hljs-attr"> root-user:</span> cm9vdA==
|
||
</code></pre>
|
||
<h4 id="3-创建-yaml-配置文件">3. 创建 yaml 配置文件</h4>
|
||
<p>创建 MySQL 的 yaml 文件 <code>galera-mariadb.yaml</code> 内容为：</p>
|
||
<pre><code class="lang-yaml"><span class="hljs-attr">apiVersion:</span> v1
|
||
<span class="hljs-attr">kind:</span> Service
|
||
<span class="hljs-attr">metadata:</span>
|
||
<span class="hljs-attr"> annotations:</span>
|
||
service.alpha.kubernetes.io/tolerate-unready-endpoints: <span class="hljs-string">"true"</span>
|
||
<span class="hljs-attr"> name:</span> mysql
|
||
<span class="hljs-attr"> namespace:</span> galera
|
||
<span class="hljs-attr"> labels:</span>
|
||
<span class="hljs-attr"> app:</span> mysql
|
||
<span class="hljs-attr"> tier:</span> data
|
||
<span class="hljs-attr">spec:</span>
|
||
<span class="hljs-attr"> ports:</span>
|
||
<span class="hljs-attr"> - port:</span> <span class="hljs-number">3306</span>
|
||
<span class="hljs-attr"> name:</span> mysql
|
||
<span class="hljs-attr"> clusterIP:</span> None
|
||
<span class="hljs-attr"> selector:</span>
|
||
<span class="hljs-attr"> app:</span> mysql
|
||
<span class="hljs-meta">---</span>
|
||
<span class="hljs-attr">apiVersion:</span> apps/v1beta1
|
||
<span class="hljs-attr">kind:</span> StatefulSet
|
||
<span class="hljs-attr">metadata:</span>
|
||
<span class="hljs-attr"> name:</span> mysql
|
||
<span class="hljs-attr"> namespace:</span> galera
|
||
<span class="hljs-attr">spec:</span>
|
||
<span class="hljs-attr"> serviceName:</span> <span class="hljs-string">"mysql"</span>
|
||
<span class="hljs-attr"> replicas:</span> <span class="hljs-number">3</span>
|
||
<span class="hljs-attr"> template:</span>
|
||
<span class="hljs-attr"> metadata:</span>
|
||
<span class="hljs-attr"> labels:</span>
|
||
<span class="hljs-attr"> app:</span> mysql
|
||
<span class="hljs-attr"> tier:</span> data
|
||
<span class="hljs-attr"> annotations:</span>
|
||
pod.beta.kubernetes.io/init-containers: <span class="hljs-string">'[
|
||
{
|
||
"name": "galera-init",
|
||
"image": "sz-pg-oam-docker-hub-001.tendcloud.com/library/k8s-galera-init:latest",
|
||
"args": ["-service=mysql"],
|
||
"env": [
|
||
{
|
||
"name": "POD_NAMESPACE",
|
||
"valueFrom": {
|
||
"fieldRef": { "apiVersion": "v1", "fieldPath": "metadata.namespace" }
|
||
}
|
||
},
|
||
{
|
||
"name": "SAFE_TO_BOOTSTRAP",
|
||
"value": "1"
|
||
},
|
||
{
|
||
"name": "DEBUG",
|
||
"value": "1"
|
||
}
|
||
],
|
||
"volumeMounts": [
|
||
{
|
||
"name": "config",
|
||
"mountPath": "/etc/mysql/conf.d"
|
||
},
|
||
{
|
||
"name": "data",
|
||
"mountPath": "/var/lib/mysql"
|
||
}
|
||
]
|
||
}
|
||
]'</span>
|
||
<span class="hljs-attr"> spec:</span>
|
||
<span class="hljs-attr"> terminationGracePeriodSeconds:</span> <span class="hljs-number">10</span>
|
||
<span class="hljs-attr"> containers:</span>
|
||
<span class="hljs-attr"> - name:</span> mysql
|
||
<span class="hljs-attr"> image:</span> sz-pg-oam-docker-hub<span class="hljs-bullet">-001.</span>tendcloud.com/library/mariadb:<span class="hljs-number">10.1</span>
|
||
<span class="hljs-attr"> imagePullPolicy:</span> IfNotPresent
|
||
<span class="hljs-attr"> ports:</span>
|
||
<span class="hljs-attr"> - containerPort:</span> <span class="hljs-number">3306</span>
|
||
<span class="hljs-attr"> name:</span> mysql
|
||
<span class="hljs-attr"> - containerPort:</span> <span class="hljs-number">4444</span>
|
||
<span class="hljs-attr"> name:</span> sst
|
||
<span class="hljs-attr"> - containerPort:</span> <span class="hljs-number">4567</span>
|
||
<span class="hljs-attr"> name:</span> replication
|
||
<span class="hljs-attr"> - containerPort:</span> <span class="hljs-number">4568</span>
|
||
<span class="hljs-attr"> name:</span> ist
|
||
<span class="hljs-attr"> env:</span>
|
||
<span class="hljs-attr"> - name:</span> MYSQL_ROOT_PASSWORD
|
||
<span class="hljs-attr"> valueFrom:</span>
|
||
<span class="hljs-attr"> secretKeyRef:</span>
|
||
<span class="hljs-attr"> name:</span> mysql-secrets
|
||
<span class="hljs-attr"> key:</span> root-password
|
||
<span class="hljs-attr"> - name:</span> MYSQL_ROOT_USER
|
||
<span class="hljs-attr"> valueFrom:</span>
|
||
<span class="hljs-attr"> secretKeyRef:</span>
|
||
<span class="hljs-attr"> name:</span> mysql-secrets
|
||
<span class="hljs-attr"> key:</span> root-user
|
||
<span class="hljs-attr"> - name:</span> MYSQL_INITDB_SKIP_TZINFO
|
||
<span class="hljs-attr"> value:</span> <span class="hljs-string">"yes"</span>
|
||
<span class="hljs-attr"> livenessProbe:</span>
|
||
<span class="hljs-attr"> exec:</span>
|
||
<span class="hljs-attr"> command:</span> [<span class="hljs-string">"sh"</span>, <span class="hljs-string">"-c"</span>, <span class="hljs-string">"mysql -u\"${MYSQL_ROOT_USER:-root}\" -p\"${MYSQL_ROOT_PASSWORD}\" -e 'show databases;'"</span>]
|
||
<span class="hljs-attr"> initialDelaySeconds:</span> <span class="hljs-number">60</span>
|
||
<span class="hljs-attr"> timeoutSeconds:</span> <span class="hljs-number">5</span>
|
||
<span class="hljs-attr"> readinessProbe:</span>
|
||
<span class="hljs-attr"> exec:</span>
|
||
<span class="hljs-attr"> command:</span> [<span class="hljs-string">"sh"</span>, <span class="hljs-string">"-c"</span>, <span class="hljs-string">"mysql -u\"${MYSQL_ROOT_USER:-root}\" -p\"${MYSQL_ROOT_PASSWORD}\" -e 'show databases;'"</span>]
|
||
<span class="hljs-attr"> initialDelaySeconds:</span> <span class="hljs-number">20</span>
|
||
<span class="hljs-attr"> timeoutSeconds:</span> <span class="hljs-number">5</span>
|
||
<span class="hljs-attr"> volumeMounts:</span>
|
||
<span class="hljs-attr"> - name:</span> config
|
||
<span class="hljs-attr"> mountPath:</span> /etc/mysql/conf.d
|
||
<span class="hljs-attr"> - name:</span> data
|
||
<span class="hljs-attr"> mountPath:</span> /var/lib/mysql
|
||
<span class="hljs-attr"> volumes:</span>
|
||
<span class="hljs-attr"> - name:</span> config
|
||
<span class="hljs-attr"> configMap:</span>
|
||
<span class="hljs-attr"> name:</span> mysql-config-vol
|
||
<span class="hljs-attr"> imagePullSecrets:</span>
|
||
<span class="hljs-attr"> - name:</span> <span class="hljs-string">"registrykey"</span>
|
||
<span class="hljs-attr"> volumeClaimTemplates:</span>
|
||
<span class="hljs-attr"> - metadata:</span>
|
||
<span class="hljs-attr"> name:</span> data
|
||
<span class="hljs-attr"> annotations:</span>
|
||
volume.beta.kubernetes.io/storage-class: <span class="hljs-string">"ceph-web"</span> <span class="hljs-comment">#引用ceph class 的类</span>
|
||
<span class="hljs-attr"> spec:</span>
|
||
<span class="hljs-attr"> accessModes:</span> [ <span class="hljs-string">"ReadWriteOnce"</span> ]
|
||
<span class="hljs-attr"> resources:</span>
|
||
<span class="hljs-attr"> requests:</span>
|
||
<span class="hljs-attr"> storage:</span> <span class="hljs-number">3</span>Gi
|
||
</code></pre>
|
||
<h2 id="部署-mysql-集群">部署 MySQL 集群</h2>
|
||
<p>在 <code>/etc/mariadb-cluster</code> 目录下执行：</p>
|
||
<pre><code class="lang-bash">kubectl create <span class="hljs-_">-f</span> .
|
||
</code></pre>
|
||
<h2 id="验证">验证</h2>
|
||
<p>存在 issue，参考 <a href="https://github.com/kubernetes/kubernetes/issues/38923" target="_blank">Error creating rbd image: executable file not found in $PATH#38923</a></p>
|
||
<h2 id="问题记录">问题记录</h2>
|
||
<p>如果没有安装 <code>ceph-common</code> 的话，kubernetes 在创建 PVC 的时候会有如下报错信息：</p>
|
||
<pre><code class="lang-bash">Events:
|
||
FirstSeen LastSeen Count From SubObjectPath Type Reason Message
|
||
--------- -------- ----- ---- ------------- -------- ------ -------
|
||
1h 12s 441 {persistentvolume-controller } Warning ProvisioningFailed Failed to provision volume with StorageClass <span class="hljs-string">"ceph-web"</span>: failed to create rbd image: executable file not found <span class="hljs-keyword">in</span> <span class="hljs-variable">$PATH</span>, <span class="hljs-built_in">command</span> output:
|
||
</code></pre>
|
||
<p>检查 <code>kube-controller-manager</code> 的日志将看到如下错误信息：</p>
|
||
<pre><code class="lang-bash">journalctl -xe -u kube-controller-manager
|
||
... rbd_util.go:364] failed to create rbd image, output
|
||
... rbd.go:317] rbd: create volume failed, err: failed to create rbd image: executable file not found <span class="hljs-keyword">in</span> <span class="hljs-variable">$PATH</span>, <span class="hljs-built_in">command</span> output:
|
||
</code></pre>
|
||
<p>这是因为 <code>kube-controller-manager</code> 主机上没有安装 <code>ceph-common</code> 的缘故。</p>
|
||
<p>但是安装了 <code>ceph-common</code> 之后依然有问题：</p>
|
||
<pre><code class="lang-bash">Sep 4 15:25:36 bj-xg-oam-kubernetes-001 kube-controller-manager: W0904 15:25:36.032128 13211 rbd_util.go:364] failed to create rbd image, output
|
||
Sep 4 15:25:36 bj-xg-oam-kubernetes-001 kube-controller-manager: W0904 15:25:36.032201 13211 rbd_util.go:364] failed to create rbd image, output
|
||
Sep 4 15:25:36 bj-xg-oam-kubernetes-001 kube-controller-manager: W0904 15:25:36.032252 13211 rbd_util.go:364] failed to create rbd image, output
|
||
Sep 4 15:25:36 bj-xg-oam-kubernetes-001 kube-controller-manager: E0904 15:25:36.032276 13211 rbd.go:317] rbd: create volume failed, err: failed to create rbd image: fork/<span class="hljs-built_in">exec</span> /usr/bin/rbd: invalid argument, <span class="hljs-built_in">command</span> output:
|
||
</code></pre>
|
||
<p>该问题尚未解决，参考 <a href="https://github.com/kubernetes/kubernetes/issues/38923" target="_blank">Error creating rbd image: executable file not found in $PATH#38923</a></p>
|
||
<p>从日志记录来看追查到 <code>pkg/volume/rbd/rbd.go</code> 的 <code>func (r *rbdVolumeProvisioner) Provision() (*v1.PersistentVolume, error) {</code> 方法对 <code>ceph-class.yaml</code> 中的参数进行了验证和处理后调用了 <code>pkg/volume/rbd/rdb_utils.go</code> 文件第 344 行 <code>CreateImage</code> 方法（kubernetes v1.6.1版本）：</p>
|
||
<pre><code class="lang-go"><span class="hljs-keyword">func</span> (util *RBDUtil) CreateImage(p *rbdVolumeProvisioner) (r *v1.RBDVolumeSource, size <span class="hljs-keyword">int</span>, err error) {
|
||
<span class="hljs-keyword">var</span> output []<span class="hljs-keyword">byte</span>
|
||
capacity := p.options.PVC.Spec.Resources.Requests[v1.ResourceName(v1.ResourceStorage)]
|
||
volSizeBytes := capacity.Value()
|
||
<span class="hljs-comment">// convert to MB that rbd defaults on</span>
|
||
sz := <span class="hljs-keyword">int</span>(volume.RoundUpSize(volSizeBytes, <span class="hljs-number">1024</span>*<span class="hljs-number">1024</span>))
|
||
volSz := fmt.Sprintf(<span class="hljs-string">"%d"</span>, sz)
|
||
<span class="hljs-comment">// rbd create</span>
|
||
l := <span class="hljs-built_in">len</span>(p.rbdMounter.Mon)
|
||
<span class="hljs-comment">// pick a mon randomly</span>
|
||
start := rand.Int() % l
|
||
<span class="hljs-comment">// iterate all monitors until create succeeds.</span>
|
||
<span class="hljs-keyword">for</span> i := start; i < start+l; i++ {
|
||
mon := p.Mon[i%l]
|
||
glog.V(<span class="hljs-number">4</span>).Infof(<span class="hljs-string">"rbd: create %s size %s using mon %s, pool %s id %s key %s"</span>, p.rbdMounter.Image, volSz, mon, p.rbdMounter.Pool, p.rbdMounter.adminId, p.rbdMounter.adminSecret)
|
||
output, err = p.rbdMounter.plugin.execCommand(<span class="hljs-string">"rbd"</span>,
|
||
[]<span class="hljs-keyword">string</span>{<span class="hljs-string">"create"</span>, p.rbdMounter.Image, <span class="hljs-string">"--size"</span>, volSz, <span class="hljs-string">"--pool"</span>, p.rbdMounter.Pool, <span class="hljs-string">"--id"</span>, p.rbdMounter.adminId, <span class="hljs-string">"-m"</span>, mon, <span class="hljs-string">"--key="</span> + p.rbdMounter.adminSecret, <span class="hljs-string">"--image-format"</span>, <span class="hljs-string">"1"</span>})
|
||
<span class="hljs-keyword">if</span> err == <span class="hljs-literal">nil</span> {
|
||
<span class="hljs-keyword">break</span>
|
||
} <span class="hljs-keyword">else</span> {
|
||
glog.Warningf(<span class="hljs-string">"failed to create rbd image, output %v"</span>, <span class="hljs-keyword">string</span>(output))
|
||
}
|
||
}
|
||
|
||
<span class="hljs-keyword">if</span> err != <span class="hljs-literal">nil</span> {
|
||
<span class="hljs-keyword">return</span> <span class="hljs-literal">nil</span>, <span class="hljs-number">0</span>, fmt.Errorf(<span class="hljs-string">"failed to create rbd image: %v, command output: %s"</span>, err, <span class="hljs-keyword">string</span>(output))
|
||
}
|
||
|
||
<span class="hljs-keyword">return</span> &v1.RBDVolumeSource{
|
||
CephMonitors: p.rbdMounter.Mon,
|
||
RBDImage: p.rbdMounter.Image,
|
||
RBDPool: p.rbdMounter.Pool,
|
||
}, sz, <span class="hljs-literal">nil</span>
|
||
}
|
||
</code></pre>
|
||
<p>该方法调用失败。</p>
|
||
<h2 id="参考">参考</h2>
|
||
<p><a href="https://github.com/kubernetes/examples/blob/master/staging/volumes/cephfs/README.md" target="_blank">https://github.com/kubernetes/examples/blob/master/staging/volumes/cephfs/README.md</a></p>
|
||
<p><a href="http://blog.csdn.net/idea77/article/details/72842723" target="_blank">k8s-ceph-statefulsets-storageclass-nfs 动态卷有状态应用实践</a></p>
|
||
<p><a href="https://crondev.com/kubernetes-persistent-storage-ceph/" target="_blank">Kubernetes persistent storage with Ceph</a></p>
|
||
<p><a href="https://kubernetes.io/docs/concepts/storage/persistent-volumes/#ceph-rbd" target="_blank">https://kubernetes.io/docs/concepts/storage/persistent-volumes/#ceph-rbd</a></p>
|
||
<p><a href="https://github.com/kubernetes/kubernetes/issues/38923" target="_blank">Error creating rbd image: executable file not found in $PATH#38923</a> </p>
|
||
<footer class="page-footer"><span class="copyright">Copyright © jimmysong.io 2017 all right reserved，powered by Gitbook</span><span class="footer-modification">Updated:
|
||
2017-10-11 23:39:24
|
||
</span></footer>
|
||
|
||
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|
||
|
||
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||
|
||
<script src="../gitbook/gitbook-plugin-search-plus/search.js"></script>
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<script src="../gitbook/gitbook-plugin-github-buttons/plugin.js"></script>
|
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|
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|
||
<script src="../gitbook/gitbook-plugin-3-ba/plugin.js"></script>
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|
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|
||
<script src="../gitbook/gitbook-plugin-sharing/buttons.js"></script>
|
||
|
||
|
||
|
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<script src="../gitbook/gitbook-plugin-fontsettings/fontsettings.js"></script>
|
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|
||
|
||
|
||
</body>
|
||
</html>
|
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