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<title>Kubernetes中的网络解析——以flannel为例 · Kubernetes Handbook - jimmysong.io</title>
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<a href="https://jimmysong.io" target="_blank" class="custom-link">Jimmy Song</a>
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<li class="divider"></li>
<li class="header">前言</li>
<li class="chapter " data-level="1.1" data-path="../">
<a href="../">
<b>1.1.</b>
序言
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<li class="chapter " data-level="1.2" data-path="../cloud-native/cncf.html">
<a href="../cloud-native/cncf.html">
<b>1.2.</b>
CNCF - 云原生计算基金会简介
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<li class="header">云原生</li>
<li class="chapter " data-level="2.1" data-path="../cloud-native/play-with-kubernetes.html">
<a href="../cloud-native/play-with-kubernetes.html">
<b>2.1.</b>
Play with Kubernetes
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<li class="chapter " data-level="2.2" data-path="../cloud-native/kubernetes-and-cloud-native-app-overview.html">
<a href="../cloud-native/kubernetes-and-cloud-native-app-overview.html">
<b>2.2.</b>
Kubernetes与云原生应用概览
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<li class="chapter " data-level="2.3" data-path="../cloud-native/from-kubernetes-to-cloud-native.html">
<a href="../cloud-native/from-kubernetes-to-cloud-native.html">
<b>2.3.</b>
云原生应用之路——从Kubernetes到Cloud Native
</a>
</li>
<li class="header">概念与原理</li>
<li class="chapter " data-level="3.1" data-path="./">
<a href="./">
<b>3.1.</b>
Kubernetes架构
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<a href="concepts.html">
<b>3.1.1.</b>
设计理念
</a>
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<li class="chapter " data-level="3.1.2" data-path="etcd.html">
<a href="etcd.html">
<b>3.1.2.</b>
Etcd解析
</a>
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<li class="chapter " data-level="3.1.3" data-path="open-interfaces.html">
<a href="open-interfaces.html">
<b>3.1.3.</b>
开放接口
</a>
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<li class="chapter " data-level="3.1.3.1" data-path="cri.html">
<a href="cri.html">
<b>3.1.3.1.</b>
CRI - Container Runtime Interface容器运行时接口
</a>
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<li class="chapter " data-level="3.1.3.2" data-path="cni.html">
<a href="cni.html">
<b>3.1.3.2.</b>
CNI - Container Network Interface容器网络接口
</a>
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<li class="chapter " data-level="3.1.3.3" data-path="csi.html">
<a href="csi.html">
<b>3.1.3.3.</b>
CSI - Container Storage Interface容器存储接口
</a>
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</ul>
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</ul>
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<li class="chapter " data-level="3.2" >
<span>
<b>3.2.</b>
Kubernetes中的网络
</span>
<ul class="articles">
<li class="chapter active" data-level="3.2.1" data-path="networking.html">
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<a href="networking.html">
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<b>3.2.1.</b>
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Kubernetes中的网络解析——以flannel为例
</a>
</li>
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<li class="chapter " data-level="3.2.2" data-path="calico.html">
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<a href="calico.html">
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<b>3.2.2.</b>
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Kubernetes中的网络解析——以calico为例
</a>
</li>
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</ul>
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<li class="chapter " data-level="3.3" data-path="objects.html">
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<a href="objects.html">
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<b>3.3.</b>
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资源对象与基本概念解析
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</li>
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<b>3.4.</b>
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Pod状态与生命周期管理
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<a href="pod-overview.html">
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<b>3.4.1.</b>
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Pod概览
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<a href="pod.html">
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<b>3.4.2.</b>
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Pod解析
</a>
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<li class="chapter " data-level="3.4.3" data-path="init-containers.html">
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<a href="init-containers.html">
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<b>3.4.3.</b>
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Init容器
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</li>
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<li class="chapter " data-level="3.4.4" data-path="pause-container.html">
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<a href="pause-container.html">
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<b>3.4.4.</b>
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Pause容器
</a>
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<li class="chapter " data-level="3.4.5" data-path="pod-security-policy.html">
<a href="pod-security-policy.html">
<b>3.4.5.</b>
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Pod安全策略
</a>
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<li class="chapter " data-level="3.4.6" data-path="pod-lifecycle.html">
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<a href="pod-lifecycle.html">
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<b>3.4.6.</b>
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Pod的生命周期
</a>
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<li class="chapter " data-level="3.4.7" data-path="pod-hook.html">
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<a href="pod-hook.html">
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<b>3.4.7.</b>
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Pod Hook
</a>
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<li class="chapter " data-level="3.4.8" data-path="pod-preset.html">
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<a href="pod-preset.html">
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<b>3.4.8.</b>
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Pod Preset
</a>
</li>
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<li class="chapter " data-level="3.4.9" data-path="pod-disruption-budget.html">
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<a href="pod-disruption-budget.html">
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<b>3.4.9.</b>
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Pod中断与PDBPod中断预算
</a>
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</li>
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2018-03-12 18:00:25 +08:00
</ul>
</li>
<li class="chapter " data-level="3.5" data-path="cluster.html">
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<a href="cluster.html">
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<b>3.5.</b>
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集群资源管理
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</a>
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<ul class="articles">
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2018-03-12 18:00:25 +08:00
<li class="chapter " data-level="3.5.1" data-path="node.html">
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<a href="node.html">
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<b>3.5.1.</b>
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Node
</a>
</li>
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<li class="chapter " data-level="3.5.2" data-path="namespace.html">
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<a href="namespace.html">
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<b>3.5.2.</b>
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Namespace
</a>
</li>
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<li class="chapter " data-level="3.5.3" data-path="label.html">
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<a href="label.html">
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<b>3.5.3.</b>
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Label
</a>
</li>
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<li class="chapter " data-level="3.5.4" data-path="annotation.html">
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<a href="annotation.html">
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<b>3.5.4.</b>
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Annotation
</a>
</li>
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<li class="chapter " data-level="3.5.5" data-path="taint-and-toleration.html">
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<a href="taint-and-toleration.html">
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<b>3.5.5.</b>
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Taint和Toleration污点和容忍
</a>
</li>
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<li class="chapter " data-level="3.5.6" data-path="garbage-collection.html">
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<a href="garbage-collection.html">
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<b>3.5.6.</b>
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垃圾收集
</a>
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</li>
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2018-03-12 18:00:25 +08:00
</ul>
</li>
<li class="chapter " data-level="3.6" data-path="controllers.html">
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<a href="controllers.html">
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<b>3.6.</b>
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控制器
</a>
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<ul class="articles">
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<li class="chapter " data-level="3.6.1" data-path="deployment.html">
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<a href="deployment.html">
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<b>3.6.1.</b>
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Deployment
</a>
</li>
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<li class="chapter " data-level="3.6.2" data-path="statefulset.html">
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<a href="statefulset.html">
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<b>3.6.2.</b>
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StatefulSet
</a>
</li>
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<li class="chapter " data-level="3.6.3" data-path="daemonset.html">
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<a href="daemonset.html">
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<b>3.6.3.</b>
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DaemonSet
</a>
</li>
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<li class="chapter " data-level="3.6.4" data-path="replicaset.html">
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<a href="replicaset.html">
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<b>3.6.4.</b>
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ReplicationController和ReplicaSet
</a>
</li>
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<li class="chapter " data-level="3.6.5" data-path="job.html">
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<a href="job.html">
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<b>3.6.5.</b>
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Job
</a>
</li>
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<li class="chapter " data-level="3.6.6" data-path="cronjob.html">
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<a href="cronjob.html">
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<b>3.6.6.</b>
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CronJob
</a>
</li>
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<li class="chapter " data-level="3.6.7" data-path="horizontal-pod-autoscaling.html">
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<a href="horizontal-pod-autoscaling.html">
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<b>3.6.7.</b>
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Horizontal Pod Autoscaling
</a>
<ul class="articles">
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<li class="chapter " data-level="3.6.7.1" data-path="custom-metrics-hpa.html">
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<a href="custom-metrics-hpa.html">
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<b>3.6.7.1.</b>
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自定义指标HPA
</a>
</li>
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</ul>
</li>
</ul>
</li>
<li class="chapter " data-level="3.7" data-path="service-discovery.html">
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<a href="service-discovery.html">
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<b>3.7.</b>
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服务发现
</a>
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<ul class="articles">
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<li class="chapter " data-level="3.7.1" data-path="service.html">
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<a href="service.html">
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<b>3.7.1.</b>
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Service
</a>
</li>
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<li class="chapter " data-level="3.7.2" data-path="ingress.html">
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<a href="ingress.html">
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<b>3.7.2.</b>
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Ingress
</a>
<ul class="articles">
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<li class="chapter " data-level="3.7.2.1" data-path="traefik-ingress-controller.html">
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<a href="traefik-ingress-controller.html">
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<b>3.7.2.1.</b>
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Traefik Ingress Controller
</a>
</li>
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</ul>
</li>
</ul>
</li>
<li class="chapter " data-level="3.8" data-path="authentication-and-permission.html">
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<a href="authentication-and-permission.html">
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<b>3.8.</b>
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身份与权限控制
</a>
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<ul class="articles">
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<li class="chapter " data-level="3.8.1" data-path="serviceaccount.html">
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<a href="serviceaccount.html">
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<b>3.8.1.</b>
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ServiceAccount
</a>
</li>
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<li class="chapter " data-level="3.8.2" data-path="rbac.html">
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<a href="rbac.html">
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<b>3.8.2.</b>
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RBAC——基于角色的访问控制
</a>
</li>
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<li class="chapter " data-level="3.8.3" data-path="network-policy.html">
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<a href="network-policy.html">
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<b>3.8.3.</b>
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NetworkPolicy
</a>
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</li>
</ul>
</li>
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<li class="chapter " data-level="3.9" data-path="storage.html">
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<a href="storage.html">
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<b>3.9.</b>
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存储
</a>
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<ul class="articles">
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<li class="chapter " data-level="3.9.1" data-path="secret.html">
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<a href="secret.html">
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<b>3.9.1.</b>
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Secret
</a>
</li>
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<li class="chapter " data-level="3.9.2" data-path="configmap.html">
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<a href="configmap.html">
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<b>3.9.2.</b>
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ConfigMap
</a>
<ul class="articles">
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<li class="chapter " data-level="3.9.2.1" data-path="configmap-hot-update.html">
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<a href="configmap-hot-update.html">
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<b>3.9.2.1.</b>
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ConfigMap的热更新
</a>
</li>
</ul>
</li>
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<li class="chapter " data-level="3.9.3" data-path="volume.html">
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<a href="volume.html">
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<b>3.9.3.</b>
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Volume
</a>
</li>
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<li class="chapter " data-level="3.9.4" data-path="persistent-volume.html">
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<a href="persistent-volume.html">
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<b>3.9.4.</b>
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Persistent Volume持久化卷
</a>
</li>
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<li class="chapter " data-level="3.9.5" data-path="storageclass.html">
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<a href="storageclass.html">
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<b>3.9.5.</b>
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Storage Class
</a>
</li>
<li class="chapter " data-level="3.9.6" data-path="local-persistent-storage.html">
<a href="local-persistent-storage.html">
<b>3.9.6.</b>
本地持久化存储
</a>
2018-03-12 18:00:25 +08:00
</li>
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2018-03-12 18:00:25 +08:00
</ul>
</li>
<li class="chapter " data-level="3.10" data-path="extension.html">
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<a href="extension.html">
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<b>3.10.</b>
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集群扩展
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</a>
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<ul class="articles">
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2018-03-12 18:00:25 +08:00
<li class="chapter " data-level="3.10.1" data-path="custom-resource.html">
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<a href="custom-resource.html">
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<b>3.10.1.</b>
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使用自定义资源扩展API
</a>
</li>
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<li class="chapter " data-level="3.10.2" data-path="aggregated-api-server.html">
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<a href="aggregated-api-server.html">
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<b>3.10.2.</b>
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Aggregated API Server
</a>
</li>
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<li class="chapter " data-level="3.10.3" data-path="apiservice.html">
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<a href="apiservice.html">
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<b>3.10.3.</b>
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APIService
</a>
</li>
</ul>
</li>
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<li class="chapter " data-level="3.11" data-path="scheduling.html">
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<a href="scheduling.html">
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<b>3.11.</b>
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资源调度
</a>
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</li>
<li class="header">用户指南</li>
<li class="chapter " data-level="4.1" data-path="../guide/">
<a href="../guide/">
<b>4.1.</b>
用户指南
</a>
</li>
<li class="chapter " data-level="4.2" data-path="../guide/resource-configuration.html">
<a href="../guide/resource-configuration.html">
<b>4.2.</b>
资源对象配置
</a>
<ul class="articles">
<li class="chapter " data-level="4.2.1" data-path="../guide/configure-liveness-readiness-probes.html">
<a href="../guide/configure-liveness-readiness-probes.html">
<b>4.2.1.</b>
配置Pod的liveness和readiness探针
</a>
</li>
<li class="chapter " data-level="4.2.2" data-path="../guide/configure-pod-service-account.html">
<a href="../guide/configure-pod-service-account.html">
<b>4.2.2.</b>
配置Pod的Service Account
</a>
</li>
<li class="chapter " data-level="4.2.3" data-path="../guide/secret-configuration.html">
<a href="../guide/secret-configuration.html">
<b>4.2.3.</b>
Secret配置
</a>
</li>
<li class="chapter " data-level="4.2.4" data-path="../guide/resource-quota-management.html">
<a href="../guide/resource-quota-management.html">
<b>4.2.4.</b>
管理namespace中的资源配额
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="4.3" data-path="../guide/command-usage.html">
<a href="../guide/command-usage.html">
<b>4.3.</b>
命令使用
</a>
<ul class="articles">
<li class="chapter " data-level="4.3.1" data-path="../guide/docker-cli-to-kubectl.html">
<a href="../guide/docker-cli-to-kubectl.html">
<b>4.3.1.</b>
docker用户过度到kubectl命令行指南
</a>
</li>
<li class="chapter " data-level="4.3.2" data-path="../guide/using-kubectl.html">
<a href="../guide/using-kubectl.html">
<b>4.3.2.</b>
kubectl命令概览
</a>
</li>
<li class="chapter " data-level="4.3.3" data-path="../guide/kubectl-cheatsheet.html">
<a href="../guide/kubectl-cheatsheet.html">
<b>4.3.3.</b>
kubectl命令技巧大全
</a>
</li>
<li class="chapter " data-level="4.3.4" data-path="../guide/using-etcdctl-to-access-kubernetes-data.html">
<a href="../guide/using-etcdctl-to-access-kubernetes-data.html">
<b>4.3.4.</b>
使用etcdctl访问kubernetes数据
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="4.4" data-path="../guide/cluster-security-management.html">
<a href="../guide/cluster-security-management.html">
<b>4.4.</b>
集群安全性管理
</a>
<ul class="articles">
<li class="chapter " data-level="4.4.1" data-path="../guide/managing-tls-in-a-cluster.html">
<a href="../guide/managing-tls-in-a-cluster.html">
<b>4.4.1.</b>
管理集群中的TLS
</a>
</li>
<li class="chapter " data-level="4.4.2" data-path="../guide/kubelet-authentication-authorization.html">
<a href="../guide/kubelet-authentication-authorization.html">
<b>4.4.2.</b>
kubelet的认证授权
</a>
</li>
<li class="chapter " data-level="4.4.3" data-path="../guide/tls-bootstrapping.html">
<a href="../guide/tls-bootstrapping.html">
<b>4.4.3.</b>
TLS bootstrap
</a>
</li>
<li class="chapter " data-level="4.4.4" data-path="../guide/kubectl-user-authentication-authorization.html">
<a href="../guide/kubectl-user-authentication-authorization.html">
<b>4.4.4.</b>
创建用户认证授权的kubeconfig文件
</a>
</li>
<li class="chapter " data-level="4.4.5" data-path="../guide/ip-masq-agent.html">
<a href="../guide/ip-masq-agent.html">
<b>4.4.5.</b>
IP伪装代理
</a>
</li>
<li class="chapter " data-level="4.4.6" data-path="../guide/auth-with-kubeconfig-or-token.html">
<a href="../guide/auth-with-kubeconfig-or-token.html">
<b>4.4.6.</b>
使用kubeconfig或token进行用户身份认证
</a>
</li>
<li class="chapter " data-level="4.4.7" data-path="../guide/authentication.html">
<a href="../guide/authentication.html">
<b>4.4.7.</b>
Kubernetes中的用户与身份认证授权
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="4.5" data-path="../guide/access-kubernetes-cluster.html">
<a href="../guide/access-kubernetes-cluster.html">
<b>4.5.</b>
访问Kubernetes集群
</a>
<ul class="articles">
<li class="chapter " data-level="4.5.1" data-path="../guide/access-cluster.html">
<a href="../guide/access-cluster.html">
<b>4.5.1.</b>
访问集群
</a>
</li>
<li class="chapter " data-level="4.5.2" data-path="../guide/authenticate-across-clusters-kubeconfig.html">
<a href="../guide/authenticate-across-clusters-kubeconfig.html">
<b>4.5.2.</b>
使用kubeconfig文件配置跨集群认证
</a>
</li>
<li class="chapter " data-level="4.5.3" data-path="../guide/connecting-to-applications-port-forward.html">
<a href="../guide/connecting-to-applications-port-forward.html">
<b>4.5.3.</b>
通过端口转发访问集群中的应用程序
</a>
</li>
<li class="chapter " data-level="4.5.4" data-path="../guide/service-access-application-cluster.html">
<a href="../guide/service-access-application-cluster.html">
<b>4.5.4.</b>
使用service访问群集中的应用程序
</a>
</li>
<li class="chapter " data-level="4.5.5" data-path="../guide/accessing-kubernetes-pods-from-outside-of-the-cluster.html">
<a href="../guide/accessing-kubernetes-pods-from-outside-of-the-cluster.html">
<b>4.5.5.</b>
从外部访问Kubernetes中的Pod
</a>
</li>
<li class="chapter " data-level="4.5.6" data-path="../guide/cabin-mobile-dashboard-for-kubernetes.html">
<a href="../guide/cabin-mobile-dashboard-for-kubernetes.html">
<b>4.5.6.</b>
Cabin - Kubernetes手机客户端
</a>
</li>
<li class="chapter " data-level="4.5.7" data-path="../guide/kubernetes-desktop-client.html">
<a href="../guide/kubernetes-desktop-client.html">
<b>4.5.7.</b>
Kubernetic - Kubernetes桌面客户端
</a>
</li>
<li class="chapter " data-level="4.5.8" data-path="../guide/kubernator-kubernetes-ui.html">
<a href="../guide/kubernator-kubernetes-ui.html">
<b>4.5.8.</b>
Kubernator - 更底层的Kubernetes UI
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="4.6" data-path="../guide/application-development-deployment-flow.html">
<a href="../guide/application-development-deployment-flow.html">
<b>4.6.</b>
在Kubernetes中开发部署应用
</a>
<ul class="articles">
<li class="chapter " data-level="4.6.1" data-path="../guide/deploy-applications-in-kubernetes.html">
<a href="../guide/deploy-applications-in-kubernetes.html">
<b>4.6.1.</b>
适用于kubernetes的应用开发部署流程
</a>
</li>
<li class="chapter " data-level="4.6.2" data-path="../guide/migrating-hadoop-yarn-to-kubernetes.html">
<a href="../guide/migrating-hadoop-yarn-to-kubernetes.html">
<b>4.6.2.</b>
迁移传统应用到Kubernetes中——以Hadoop YARN为例
</a>
</li>
<li class="chapter " data-level="4.6.3" data-path="../guide/using-statefulset.html">
<a href="../guide/using-statefulset.html">
<b>4.6.3.</b>
使用StatefulSet部署用状态应用
</a>
</li>
</ul>
</li>
<li class="header">最佳实践</li>
<li class="chapter " data-level="5.1" data-path="../practice/">
<a href="../practice/">
<b>5.1.</b>
最佳实践概览
</a>
</li>
<li class="chapter " data-level="5.2" data-path="../practice/install-kubernetes-on-centos.html">
<a href="../practice/install-kubernetes-on-centos.html">
<b>5.2.</b>
在CentOS上部署Kubernetes集群
</a>
<ul class="articles">
<li class="chapter " data-level="5.2.1" data-path="../practice/create-tls-and-secret-key.html">
<a href="../practice/create-tls-and-secret-key.html">
<b>5.2.1.</b>
创建TLS证书和秘钥
</a>
</li>
<li class="chapter " data-level="5.2.2" data-path="../practice/create-kubeconfig.html">
<a href="../practice/create-kubeconfig.html">
<b>5.2.2.</b>
创建kubeconfig文件
</a>
</li>
<li class="chapter " data-level="5.2.3" data-path="../practice/etcd-cluster-installation.html">
<a href="../practice/etcd-cluster-installation.html">
<b>5.2.3.</b>
创建高可用etcd集群
</a>
</li>
<li class="chapter " data-level="5.2.4" data-path="../practice/kubectl-installation.html">
<a href="../practice/kubectl-installation.html">
<b>5.2.4.</b>
安装kubectl命令行工具
</a>
</li>
<li class="chapter " data-level="5.2.5" data-path="../practice/master-installation.html">
<a href="../practice/master-installation.html">
<b>5.2.5.</b>
部署master节点
</a>
</li>
<li class="chapter " data-level="5.2.6" data-path="../practice/flannel-installation.html">
<a href="../practice/flannel-installation.html">
<b>5.2.6.</b>
安装flannel网络插件
</a>
</li>
<li class="chapter " data-level="5.2.7" data-path="../practice/node-installation.html">
<a href="../practice/node-installation.html">
<b>5.2.7.</b>
部署node节点
</a>
</li>
<li class="chapter " data-level="5.2.8" data-path="../practice/kubedns-addon-installation.html">
<a href="../practice/kubedns-addon-installation.html">
<b>5.2.8.</b>
安装kubedns插件
</a>
</li>
<li class="chapter " data-level="5.2.9" data-path="../practice/dashboard-addon-installation.html">
<a href="../practice/dashboard-addon-installation.html">
<b>5.2.9.</b>
安装dashboard插件
</a>
</li>
<li class="chapter " data-level="5.2.10" data-path="../practice/heapster-addon-installation.html">
<a href="../practice/heapster-addon-installation.html">
<b>5.2.10.</b>
安装heapster插件
</a>
</li>
<li class="chapter " data-level="5.2.11" data-path="../practice/efk-addon-installation.html">
<a href="../practice/efk-addon-installation.html">
<b>5.2.11.</b>
安装EFK插件
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="5.3" data-path="../practice/install-kubernetes-with-kubeadm.html">
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<a href="../practice/install-kubernetes-with-kubeadm.html">
2018-02-05 22:14:09 +08:00
<b>5.3.</b>
使用kubeadm快速构建测试集群
</a>
<ul class="articles">
<li class="chapter " data-level="5.3.1" data-path="../practice/install-kubernetes-on-ubuntu-server-16.04-with-kubeadm.html">
<a href="../practice/install-kubernetes-on-ubuntu-server-16.04-with-kubeadm.html">
<b>5.3.1.</b>
使用kubeadm在Ubuntu Server 16.04上快速构建测试集群
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="5.4" data-path="../practice/service-discovery-and-loadbalancing.html">
<a href="../practice/service-discovery-and-loadbalancing.html">
<b>5.4.</b>
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服务发现与负载均衡
</a>
<ul class="articles">
<li class="chapter " data-level="5.4.1" data-path="../practice/traefik-ingress-installation.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/traefik-ingress-installation.html">
<b>5.4.1.</b>
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安装Traefik ingress
</a>
</li>
<li class="chapter " data-level="5.4.2" data-path="../practice/distributed-load-test.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/distributed-load-test.html">
<b>5.4.2.</b>
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分布式负载测试
</a>
</li>
<li class="chapter " data-level="5.4.3" data-path="../practice/network-and-cluster-perfermance-test.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/network-and-cluster-perfermance-test.html">
<b>5.4.3.</b>
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网络和集群性能测试
</a>
</li>
<li class="chapter " data-level="5.4.4" data-path="../practice/edge-node-configuration.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/edge-node-configuration.html">
<b>5.4.4.</b>
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边缘节点配置
</a>
</li>
<li class="chapter " data-level="5.4.5" data-path="../practice/nginx-ingress-installation.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/nginx-ingress-installation.html">
<b>5.4.5.</b>
2018-02-05 22:14:09 +08:00
安装Nginx ingress
</a>
</li>
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<li class="chapter " data-level="5.4.6" data-path="../practice/dns-installation.html">
2018-02-05 22:14:09 +08:00
2018-04-19 10:35:52 +08:00
<a href="../practice/dns-installation.html">
2018-02-05 22:14:09 +08:00
<b>5.4.6.</b>
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安装配置DNS
</a>
<ul class="articles">
<li class="chapter " data-level="5.4.6.1" data-path="../practice/configuring-dns.html">
<a href="../practice/configuring-dns.html">
<b>5.4.6.1.</b>
安装配置Kube-dns
</a>
</li>
<li class="chapter " data-level="5.4.6.2" data-path="../practice/coredns.html">
<a href="../practice/coredns.html">
<b>5.4.6.2.</b>
安装配置CoreDNS
2018-02-05 22:14:09 +08:00
</a>
</li>
</ul>
</li>
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</ul>
</li>
<li class="chapter " data-level="5.5" data-path="../practice/operation.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/operation.html">
<b>5.5.</b>
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运维管理
</a>
<ul class="articles">
<li class="chapter " data-level="5.5.1" data-path="../practice/master-ha.html">
2018-02-05 22:14:09 +08:00
2018-03-20 10:59:44 +08:00
<a href="../practice/master-ha.html">
2018-02-05 22:14:09 +08:00
<b>5.5.1.</b>
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2018-03-20 10:59:44 +08:00
Master节点高可用
</a>
</li>
<li class="chapter " data-level="5.5.2" data-path="../practice/service-rolling-update.html">
2018-03-20 10:59:44 +08:00
<a href="../practice/service-rolling-update.html">
<b>5.5.2.</b>
2018-03-20 10:59:44 +08:00
2018-02-05 22:14:09 +08:00
服务滚动升级
</a>
</li>
<li class="chapter " data-level="5.5.3" data-path="../practice/app-log-collection.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/app-log-collection.html">
<b>5.5.3.</b>
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应用日志收集
</a>
</li>
<li class="chapter " data-level="5.5.4" data-path="../practice/configuration-best-practice.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/configuration-best-practice.html">
<b>5.5.4.</b>
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配置最佳实践
</a>
</li>
<li class="chapter " data-level="5.5.5" data-path="../practice/monitor.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/monitor.html">
<b>5.5.5.</b>
2018-02-05 22:14:09 +08:00
集群及应用监控
</a>
</li>
<li class="chapter " data-level="5.5.6" data-path="../practice/data-persistence-problem.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/data-persistence-problem.html">
<b>5.5.6.</b>
2018-02-05 22:14:09 +08:00
数据持久化问题
</a>
</li>
<li class="chapter " data-level="5.5.7" data-path="../practice/manage-compute-resources-container.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/manage-compute-resources-container.html">
<b>5.5.7.</b>
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管理容器的计算资源
</a>
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</li>
<li class="chapter " data-level="5.5.8" data-path="../practice/federation.html">
2018-02-24 11:49:48 +08:00
<a href="../practice/federation.html">
<b>5.5.8.</b>
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集群联邦
</a>
2018-02-05 22:14:09 +08:00
</li>
</ul>
</li>
<li class="chapter " data-level="5.6" data-path="../practice/storage.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/storage.html">
<b>5.6.</b>
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存储管理
</a>
<ul class="articles">
<li class="chapter " data-level="5.6.1" data-path="../practice/glusterfs.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/glusterfs.html">
<b>5.6.1.</b>
2018-02-05 22:14:09 +08:00
GlusterFS
</a>
<ul class="articles">
<li class="chapter " data-level="5.6.1.1" data-path="../practice/using-glusterfs-for-persistent-storage.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/using-glusterfs-for-persistent-storage.html">
<b>5.6.1.1.</b>
2018-02-05 22:14:09 +08:00
使用GlusterFS做持久化存储
</a>
</li>
<li class="chapter " data-level="5.6.1.2" data-path="../practice/using-heketi-gluster-for-persistent-storage.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/using-heketi-gluster-for-persistent-storage.html">
2018-02-05 22:14:09 +08:00
<b>5.6.1.2.</b>
2018-02-05 22:14:09 +08:00
使用Heketi作为kubernetes的持久存储GlusterFS的external provisioner
</a>
</li>
<li class="chapter " data-level="5.6.1.3" data-path="../practice/storage-for-containers-using-glusterfs-with-openshift.html">
<a href="../practice/storage-for-containers-using-glusterfs-with-openshift.html">
<b>5.6.1.3.</b>
2018-02-05 22:14:09 +08:00
在OpenShift中使用GlusterFS做持久化存储
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="5.6.2" data-path="../practice/ceph.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/ceph.html">
2018-02-05 22:14:09 +08:00
<b>5.6.2.</b>
2018-02-05 22:14:09 +08:00
Ceph
2018-02-05 22:14:09 +08:00
</a>
<ul class="articles">
2018-04-18 23:46:26 +08:00
<li class="chapter " data-level="5.6.2.1" data-path="../practice/ceph-helm-install-guide-zh.html">
2018-02-05 22:14:09 +08:00
2018-04-18 23:46:26 +08:00
<a href="../practice/ceph-helm-install-guide-zh.html">
2018-02-05 22:14:09 +08:00
<b>5.6.2.1.</b>
2018-02-05 22:14:09 +08:00
2018-04-18 23:46:26 +08:00
用Helm托管安装Ceph集群并提供后端存储
</a>
</li>
<li class="chapter " data-level="5.6.2.2" data-path="../practice/using-ceph-for-persistent-storage.html">
<a href="../practice/using-ceph-for-persistent-storage.html">
<b>5.6.2.2.</b>
2018-02-05 22:14:09 +08:00
使用Ceph做持久化存储
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="5.6.3" data-path="../practice/openebs.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/openebs.html">
<b>5.6.3.</b>
2018-02-05 22:14:09 +08:00
OpenEBS
</a>
<ul class="articles">
<li class="chapter " data-level="5.6.3.1" data-path="../practice/using-openebs-for-persistent-storage.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/using-openebs-for-persistent-storage.html">
<b>5.6.3.1.</b>
2018-02-05 22:14:09 +08:00
使用OpenEBS做持久化存储
</a>
</li>
</ul>
2018-02-24 22:56:37 +08:00
</li>
<li class="chapter " data-level="5.6.4" data-path="../practice/rook.html">
2018-02-24 22:56:37 +08:00
<a href="../practice/rook.html">
<b>5.6.4.</b>
2018-02-24 22:56:37 +08:00
Rook
</a>
2018-04-13 23:45:08 +08:00
</li>
<li class="chapter " data-level="5.6.5" data-path="../practice/nfs.html">
2018-04-13 23:45:08 +08:00
<a href="../practice/nfs.html">
<b>5.6.5.</b>
2018-04-13 23:45:08 +08:00
NFS
</a>
<ul class="articles">
<li class="chapter " data-level="5.6.5.1" data-path="../practice/using-nfs-for-persistent-storage.html">
2018-04-13 23:45:08 +08:00
<a href="../practice/using-nfs-for-persistent-storage.html">
<b>5.6.5.1.</b>
2018-04-13 23:45:08 +08:00
利用NFS动态提供Kubernetes后端存储卷
</a>
</li>
</ul>
2018-02-05 22:14:09 +08:00
</li>
</ul>
</li>
<li class="chapter " data-level="5.7" data-path="../practice/monitoring.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/monitoring.html">
<b>5.7.</b>
2018-02-05 22:14:09 +08:00
集群与应用监控
</a>
<ul class="articles">
<li class="chapter " data-level="5.7.1" data-path="../practice/heapster.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/heapster.html">
<b>5.7.1.</b>
2018-02-05 22:14:09 +08:00
Heapster
</a>
<ul class="articles">
<li class="chapter " data-level="5.7.1.1" data-path="../practice/using-heapster-to-get-object-metrics.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/using-heapster-to-get-object-metrics.html">
<b>5.7.1.1.</b>
2018-02-05 22:14:09 +08:00
使用Heapster获取集群和对象的metric数据
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="5.7.2" data-path="../practice/prometheus.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/prometheus.html">
<b>5.7.2.</b>
2018-02-05 22:14:09 +08:00
Prometheus
</a>
<ul class="articles">
<li class="chapter " data-level="5.7.2.1" data-path="../practice/using-prometheus-to-monitor-kuberentes-cluster.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/using-prometheus-to-monitor-kuberentes-cluster.html">
<b>5.7.2.1.</b>
2018-02-05 22:14:09 +08:00
使用Prometheus监控kubernetes集群
</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="chapter " data-level="5.8" data-path="../practice/services-management-tool.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/services-management-tool.html">
<b>5.8.</b>
2018-02-05 22:14:09 +08:00
服务编排管理
</a>
<ul class="articles">
<li class="chapter " data-level="5.8.1" data-path="../practice/helm.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/helm.html">
<b>5.8.1.</b>
2018-02-05 22:14:09 +08:00
使用Helm管理kubernetes应用
</a>
</li>
<li class="chapter " data-level="5.8.2" data-path="../practice/create-private-charts-repo.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/create-private-charts-repo.html">
<b>5.8.2.</b>
2018-02-05 22:14:09 +08:00
构建私有Chart仓库
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="5.9" data-path="../practice/ci-cd.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/ci-cd.html">
<b>5.9.</b>
2018-02-05 22:14:09 +08:00
持续集成与发布
</a>
<ul class="articles">
<li class="chapter " data-level="5.9.1" data-path="../practice/jenkins-ci-cd.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/jenkins-ci-cd.html">
<b>5.9.1.</b>
2018-02-05 22:14:09 +08:00
使用Jenkins进行持续集成与发布
</a>
</li>
<li class="chapter " data-level="5.9.2" data-path="../practice/drone-ci-cd.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/drone-ci-cd.html">
<b>5.9.2.</b>
2018-02-05 22:14:09 +08:00
使用Drone进行持续集成与发布
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="5.10" data-path="../practice/update-and-upgrade.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/update-and-upgrade.html">
<b>5.10.</b>
2018-02-05 22:14:09 +08:00
更新与升级
</a>
<ul class="articles">
<li class="chapter " data-level="5.10.1" data-path="../practice/manually-upgrade.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/manually-upgrade.html">
<b>5.10.1.</b>
2018-02-05 22:14:09 +08:00
手动升级Kubernetes集群
</a>
</li>
<li class="chapter " data-level="5.10.2" data-path="../practice/dashboard-upgrade.html">
2018-02-05 22:14:09 +08:00
<a href="../practice/dashboard-upgrade.html">
<b>5.10.2.</b>
2018-02-05 22:14:09 +08:00
升级dashboard
</a>
</li>
</ul>
</li>
<li class="header">领域应用</li>
<li class="chapter " data-level="6.1" data-path="../usecases/">
<a href="../usecases/">
<b>6.1.</b>
领域应用概览
</a>
</li>
<li class="chapter " data-level="6.2" data-path="../usecases/microservices.html">
<a href="../usecases/microservices.html">
<b>6.2.</b>
微服务架构
</a>
<ul class="articles">
<li class="chapter " data-level="6.2.1" data-path="../usecases/service-discovery-in-microservices.html">
<a href="../usecases/service-discovery-in-microservices.html">
<b>6.2.1.</b>
微服务中的服务发现
</a>
2018-03-13 17:43:40 +08:00
</li>
<li class="chapter " data-level="6.2.2" data-path="../usecases/microservices-for-java-developers.html">
<a href="../usecases/microservices-for-java-developers.html">
<b>6.2.2.</b>
使用Java构建微服务并发布到Kubernetes平台
</a>
<ul class="articles">
<li class="chapter " data-level="6.2.2.1" data-path="../usecases/spring-boot-quick-start-guide.html">
<a href="../usecases/spring-boot-quick-start-guide.html">
<b>6.2.2.1.</b>
Spring Boot快速开始指南
</a>
</li>
</ul>
2018-02-05 22:14:09 +08:00
</li>
</ul>
</li>
<li class="chapter " data-level="6.3" data-path="../usecases/service-mesh.html">
<a href="../usecases/service-mesh.html">
<b>6.3.</b>
Service Mesh 服务网格
</a>
<ul class="articles">
<li class="chapter " data-level="6.3.1" data-path="../usecases/istio.html">
<a href="../usecases/istio.html">
<b>6.3.1.</b>
Istio
</a>
<ul class="articles">
<li class="chapter " data-level="6.3.1.1" data-path="../usecases/istio-installation.html">
<a href="../usecases/istio-installation.html">
<b>6.3.1.1.</b>
安装并试用Istio service mesh
</a>
</li>
<li class="chapter " data-level="6.3.1.2" data-path="../usecases/configuring-request-routing.html">
<a href="../usecases/configuring-request-routing.html">
<b>6.3.1.2.</b>
配置请求的路由规则
</a>
</li>
<li class="chapter " data-level="6.3.1.3" data-path="../usecases/install-and-expand-istio-mesh.html">
<a href="../usecases/install-and-expand-istio-mesh.html">
<b>6.3.1.3.</b>
安装和拓展Istio service mesh
</a>
</li>
<li class="chapter " data-level="6.3.1.4" data-path="../usecases/integrating-vms.html">
<a href="../usecases/integrating-vms.html">
<b>6.3.1.4.</b>
集成虚拟机
</a>
</li>
<li class="chapter " data-level="6.3.1.5" data-path="../usecases/sidecar-spec-in-istio.html">
<a href="../usecases/sidecar-spec-in-istio.html">
<b>6.3.1.5.</b>
Istio中sidecar的注入规范及示例
</a>
2018-04-16 21:16:23 +08:00
</li>
<li class="chapter " data-level="6.3.1.6" data-path="../usecases/istio-community-tips.html">
<a href="../usecases/istio-community-tips.html">
<b>6.3.1.6.</b>
如何参与Istio社区及注意事项
</a>
2018-04-18 23:26:03 +08:00
</li>
<li class="chapter " data-level="6.3.1.7" data-path="../usecases/istio-tutorial.html">
<a href="../usecases/istio-tutorial.html">
<b>6.3.1.7.</b>
Istio 教程
</a>
2018-02-05 22:14:09 +08:00
</li>
</ul>
</li>
<li class="chapter " data-level="6.3.2" data-path="../usecases/linkerd.html">
<a href="../usecases/linkerd.html">
<b>6.3.2.</b>
Linkerd
</a>
<ul class="articles">
<li class="chapter " data-level="6.3.2.1" data-path="../usecases/linkerd-user-guide.html">
<a href="../usecases/linkerd-user-guide.html">
<b>6.3.2.1.</b>
Linkerd 使用指南
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="6.3.3" data-path="../usecases/conduit.html">
<a href="../usecases/conduit.html">
<b>6.3.3.</b>
Conduit
</a>
<ul class="articles">
<li class="chapter " data-level="6.3.3.1" data-path="../usecases/conduit-overview.html">
<a href="../usecases/conduit-overview.html">
<b>6.3.3.1.</b>
Condiut概览
</a>
</li>
<li class="chapter " data-level="6.3.3.2" data-path="../usecases/conduit-installation.html">
<a href="../usecases/conduit-installation.html">
<b>6.3.3.2.</b>
安装Conduit
</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="chapter " data-level="6.4" data-path="../usecases/big-data.html">
<a href="../usecases/big-data.html">
<b>6.4.</b>
大数据
</a>
<ul class="articles">
<li class="chapter " data-level="6.4.1" data-path="../usecases/spark-standalone-on-kubernetes.html">
<a href="../usecases/spark-standalone-on-kubernetes.html">
<b>6.4.1.</b>
Spark standalone on Kubernetes
</a>
</li>
<li class="chapter " data-level="6.4.2" data-path="../usecases/running-spark-with-kubernetes-native-scheduler.html">
<a href="../usecases/running-spark-with-kubernetes-native-scheduler.html">
<b>6.4.2.</b>
运行支持Kubernetes原生调度的Spark程序
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="6.5" data-path="../usecases/serverless.html">
<a href="../usecases/serverless.html">
<b>6.5.</b>
Serverless架构
</a>
<ul class="articles">
<li class="chapter " data-level="6.5.1" data-path="../usecases/understanding-serverless.html">
<a href="../usecases/understanding-serverless.html">
<b>6.5.1.</b>
理解Serverless
</a>
</li>
<li class="chapter " data-level="6.5.2" data-path="../usecases/faas.html">
<a href="../usecases/faas.html">
<b>6.5.2.</b>
FaaS-函数即服务
</a>
<ul class="articles">
<li class="chapter " data-level="6.5.2.1" data-path="../usecases/openfaas-quick-start.html">
<a href="../usecases/openfaas-quick-start.html">
<b>6.5.2.1.</b>
OpenFaaS快速入门指南
</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="chapter " data-level="6.6" data-path="../usecases/edge-computing.html">
<a href="../usecases/edge-computing.html">
<b>6.6.</b>
边缘计算
</a>
2018-04-16 21:16:23 +08:00
</li>
<li class="chapter " data-level="6.7" data-path="../usecases/ai.html">
<a href="../usecases/ai.html">
<b>6.7.</b>
人工智能
</a>
2018-02-05 22:14:09 +08:00
</li>
<li class="header">开发指南</li>
<li class="chapter " data-level="7.1" data-path="../develop/">
<a href="../develop/">
<b>7.1.</b>
开发指南概览
</a>
</li>
<li class="chapter " data-level="7.2" data-path="../develop/sigs-and-working-group.html">
<a href="../develop/sigs-and-working-group.html">
<b>7.2.</b>
SIG和工作组
</a>
</li>
<li class="chapter " data-level="7.3" data-path="../develop/developing-environment.html">
<a href="../develop/developing-environment.html">
<b>7.3.</b>
开发环境搭建
</a>
</li>
<li class="chapter " data-level="7.4" data-path="../develop/using-vagrant-and-virtualbox-for-development.html">
<a href="../develop/using-vagrant-and-virtualbox-for-development.html">
<b>7.4.</b>
本地分布式开发环境搭建使用Vagrant和Virtualbox
</a>
</li>
<li class="chapter " data-level="7.5" data-path="../develop/testing.html">
<a href="../develop/testing.html">
<b>7.5.</b>
单元测试和集成测试
</a>
</li>
<li class="chapter " data-level="7.6" data-path="../develop/client-go-sample.html">
<a href="../develop/client-go-sample.html">
<b>7.6.</b>
client-go示例
</a>
</li>
<li class="chapter " data-level="7.7" data-path="../develop/operator.html">
<a href="../develop/operator.html">
<b>7.7.</b>
Operator
</a>
</li>
2018-02-11 10:00:15 +08:00
<li class="chapter " data-level="7.8" data-path="../develop/advance-developer.html">
2018-02-05 22:14:09 +08:00
2018-02-11 10:00:15 +08:00
<a href="../develop/advance-developer.html">
2018-02-05 22:14:09 +08:00
<b>7.8.</b>
2018-02-11 10:00:15 +08:00
高级开发指南
</a>
</li>
<li class="chapter " data-level="7.9" data-path="../develop/contribute.html">
<a href="../develop/contribute.html">
<b>7.9.</b>
2018-02-05 22:14:09 +08:00
社区贡献
</a>
</li>
2018-02-11 10:00:15 +08:00
<li class="chapter " data-level="7.10" data-path="../develop/minikube.html">
2018-02-05 22:14:09 +08:00
<a href="../develop/minikube.html">
2018-02-11 10:00:15 +08:00
<b>7.10.</b>
2018-02-05 22:14:09 +08:00
Minikube
</a>
</li>
<li class="header">附录</li>
<li class="chapter " data-level="8.1" data-path="../appendix/">
<a href="../appendix/">
<b>8.1.</b>
附录说明
</a>
</li>
<li class="chapter " data-level="8.2" data-path="../appendix/debug-kubernetes-services.html">
<a href="../appendix/debug-kubernetes-services.html">
<b>8.2.</b>
Kubernetes中的应用故障排查
</a>
</li>
<li class="chapter " data-level="8.3" data-path="../appendix/material-share.html">
<a href="../appendix/material-share.html">
<b>8.3.</b>
Kubernetes相关资讯和情报链接
</a>
</li>
<li class="chapter " data-level="8.4" data-path="../appendix/docker-best-practice.html">
<a href="../appendix/docker-best-practice.html">
<b>8.4.</b>
Docker最佳实践
</a>
</li>
<li class="chapter " data-level="8.5" data-path="../appendix/tricks.html">
<a href="../appendix/tricks.html">
<b>8.5.</b>
使用技巧
</a>
</li>
<li class="chapter " data-level="8.6" data-path="../appendix/issues.html">
<a href="../appendix/issues.html">
<b>8.6.</b>
问题记录
</a>
</li>
<li class="chapter " data-level="8.7" data-path="../appendix/kubernetes-changelog.html">
<a href="../appendix/kubernetes-changelog.html">
<b>8.7.</b>
Kubernetes版本更新日志
</a>
<ul class="articles">
<li class="chapter " data-level="8.7.1" data-path="../appendix/kubernetes-1.7-changelog.html">
<a href="../appendix/kubernetes-1.7-changelog.html">
<b>8.7.1.</b>
Kubernetes1.7更新日志
</a>
</li>
<li class="chapter " data-level="8.7.2" data-path="../appendix/kubernetes-1.8-changelog.html">
<a href="../appendix/kubernetes-1.8-changelog.html">
<b>8.7.2.</b>
Kubernetes1.8更新日志
</a>
</li>
<li class="chapter " data-level="8.7.3" data-path="../appendix/kubernetes-1.9-changelog.html">
<a href="../appendix/kubernetes-1.9-changelog.html">
<b>8.7.3.</b>
Kubernetes1.9更新日志
</a>
2018-03-27 10:29:19 +08:00
</li>
<li class="chapter " data-level="8.7.4" data-path="../appendix/kubernetes-1.10-changelog.html">
<a href="../appendix/kubernetes-1.10-changelog.html">
<b>8.7.4.</b>
Kubernetes1.10更新日志
</a>
2018-02-05 22:14:09 +08:00
</li>
</ul>
</li>
<li class="chapter " data-level="8.8" data-path="../appendix/summary-and-outlook.html">
<a href="../appendix/summary-and-outlook.html">
<b>8.8.</b>
Kubernetes及云原生年度总结及展望
</a>
<ul class="articles">
<li class="chapter " data-level="8.8.1" data-path="../appendix/kubernetes-and-cloud-native-summary-in-2017-and-outlook-for-2018.html">
<a href="../appendix/kubernetes-and-cloud-native-summary-in-2017-and-outlook-for-2018.html">
<b>8.8.1.</b>
Kubernetes与云原生2017年年终总结及2018年展望
</a>
</li>
</ul>
</li>
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<section class="normal markdown-section">
<h3 id="kubernetes&#x4E2D;&#x7684;&#x7F51;&#x7EDC;&#x89E3;&#x6790;&#x2014;&#x2014;&#x4EE5;flannel&#x4E3A;&#x4F8B;">Kubernetes&#x4E2D;&#x7684;&#x7F51;&#x7EDC;&#x89E3;&#x6790;&#x2014;&#x2014;&#x4EE5;flannel&#x4E3A;&#x4F8B;</h3>
<p>&#x6211;&#x4EEC;&#x5F53;&#x521D;&#x4F7F;&#x7528;<a href="https://github.com/rootsongjc/kubernetes-vagrant-centos-cluster" target="_blank">kubernetes-vagrant-centos-cluster</a>&#x5B89;&#x88C5;&#x4E86;&#x62E5;&#x6709;&#x4E09;&#x4E2A;&#x8282;&#x70B9;&#x7684;kubernetes&#x96C6;&#x7FA4;&#xFF0C;&#x8282;&#x70B9;&#x7684;&#x72B6;&#x6001;&#x5982;&#x4E0B;&#x6240;&#x8FF0;&#x3002;</p>
2018-02-20 18:00:08 +08:00
<pre class="language-"><code class="lang-bash"><span class="token punctuation">[</span>root@node1 ~<span class="token punctuation">]</span><span class="token comment" spellcheck="true"># kubectl get nodes -o wide</span>
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NAME STATUS ROLES AGE VERSION EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
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node1 Ready <span class="token operator">&lt;</span>none<span class="token operator">&gt;</span> 2d v1.9.1 <span class="token operator">&lt;</span>none<span class="token operator">&gt;</span> CentOS Linux 7 <span class="token punctuation">(</span>Core<span class="token punctuation">)</span> 3.10.0-693.11.6.el7.x86_64 docker://1.12.6
node2 Ready <span class="token operator">&lt;</span>none<span class="token operator">&gt;</span> 2d v1.9.1 <span class="token operator">&lt;</span>none<span class="token operator">&gt;</span> CentOS Linux 7 <span class="token punctuation">(</span>Core<span class="token punctuation">)</span> 3.10.0-693.11.6.el7.x86_64 docker://1.12.6
node3 Ready <span class="token operator">&lt;</span>none<span class="token operator">&gt;</span> 2d v1.9.1 <span class="token operator">&lt;</span>none<span class="token operator">&gt;</span> CentOS Linux 7 <span class="token punctuation">(</span>Core<span class="token punctuation">)</span> 3.10.0-693.11.6.el7.x86_64 docker://1.12.6
2018-02-05 22:14:09 +08:00
</code></pre>
<p>&#x5F53;&#x524D;Kubernetes&#x96C6;&#x7FA4;&#x4E2D;&#x8FD0;&#x884C;&#x7684;&#x6240;&#x6709;Pod&#x4FE1;&#x606F;&#xFF1A;</p>
2018-02-20 18:00:08 +08:00
<pre class="language-"><code class="lang-bash"><span class="token punctuation">[</span>root@node1 ~<span class="token punctuation">]</span><span class="token comment" spellcheck="true"># kubectl get pods --all-namespaces -o wide</span>
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NAMESPACE NAME READY STATUS RESTARTS AGE IP NODE
kube-system coredns-5984fb8cbb-sjqv9 1/1 Running 0 1h 172.33.68.2 node1
kube-system coredns-5984fb8cbb-tkfrc 1/1 Running 1 1h 172.33.96.3 node3
kube-system heapster-v1.5.0-684c7f9488-z6sdz 4/4 Running 0 1h 172.33.31.3 node2
kube-system kubernetes-dashboard-6b66b8b96c-mnm2c 1/1 Running 0 1h 172.33.31.2 node2
2018-02-20 18:00:08 +08:00
kube-system monitoring-influxdb-grafana-v4-54b7854697-tw9cd 2/2 Running 2 1h 172.33.96.2 node3
2018-02-05 22:14:09 +08:00
</code></pre>
<p>&#x5F53;&#x524D;etcd&#x4E2D;&#x7684;&#x6CE8;&#x518C;&#x7684;&#x5BBF;&#x4E3B;&#x673A;&#x7684;pod&#x5730;&#x5740;&#x7F51;&#x6BB5;&#x4FE1;&#x606F;&#xFF1A;</p>
2018-02-20 18:00:08 +08:00
<pre class="language-"><code class="lang-bash"><span class="token punctuation">[</span>root@node1 ~<span class="token punctuation">]</span><span class="token comment" spellcheck="true"># etcdctl ls /kube-centos/network/subnets</span>
2018-02-05 22:14:09 +08:00
/kube-centos/network/subnets/172.33.68.0-24
/kube-centos/network/subnets/172.33.31.0-24
/kube-centos/network/subnets/172.33.96.0-24
</code></pre>
<p>&#x800C;&#x6BCF;&#x4E2A;node&#x4E0A;&#x7684;Pod&#x5B50;&#x7F51;&#x662F;&#x6839;&#x636E;&#x6211;&#x4EEC;&#x5728;&#x5B89;&#x88C5;flannel&#x65F6;&#x914D;&#x7F6E;&#x6765;&#x5212;&#x5206;&#x7684;&#xFF0C;&#x5728;etcd&#x4E2D;&#x67E5;&#x770B;&#x8BE5;&#x914D;&#x7F6E;&#xFF1A;</p>
2018-02-20 18:00:08 +08:00
<pre class="language-"><code class="lang-bash"><span class="token punctuation">[</span>root@node1 ~<span class="token punctuation">]</span><span class="token comment" spellcheck="true"># etcdctl get /kube-centos/network/config</span>
<span class="token punctuation">{</span><span class="token string">&quot;Network&quot;</span><span class="token keyword">:</span><span class="token string">&quot;172.33.0.0/16&quot;</span>,<span class="token string">&quot;SubnetLen&quot;</span>:24,<span class="token string">&quot;Backend&quot;</span>:<span class="token punctuation">{</span><span class="token string">&quot;Type&quot;</span><span class="token keyword">:</span><span class="token string">&quot;host-gw&quot;</span><span class="token punctuation">}</span><span class="token punctuation">}</span>
2018-02-05 22:14:09 +08:00
</code></pre>
<p>&#x6211;&#x4EEC;&#x77E5;&#x9053;Kubernetes&#x96C6;&#x7FA4;&#x5185;&#x90E8;&#x5B58;&#x5728;&#x4E09;&#x7C7B;IP&#xFF0C;&#x5206;&#x522B;&#x662F;&#xFF1A;</p>
<ul>
<li>Node IP&#xFF1A;&#x5BBF;&#x4E3B;&#x673A;&#x7684;IP&#x5730;&#x5740;</li>
2018-02-15 11:03:50 +08:00
<li>Pod IP&#xFF1A;&#x4F7F;&#x7528;&#x7F51;&#x7EDC;&#x63D2;&#x4EF6;&#x521B;&#x5EFA;&#x7684;IP&#xFF08;&#x5982;flannel&#xFF09;&#xFF0C;&#x4F7F;&#x8DE8;&#x4E3B;&#x673A;&#x7684;Pod&#x53EF;&#x4EE5;&#x4E92;&#x901A;</li>
2018-02-06 11:33:27 +08:00
<li>Cluster IP&#xFF1A;&#x865A;&#x62DF;IP&#xFF0C;&#x901A;&#x8FC7;iptables&#x89C4;&#x5219;&#x8BBF;&#x95EE;&#x670D;&#x52A1;</li>
2018-02-05 22:14:09 +08:00
</ul>
<p>&#x5728;&#x5B89;&#x88C5;node&#x8282;&#x70B9;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x8282;&#x70B9;&#x4E0A;&#x7684;&#x8FDB;&#x7A0B;&#x662F;&#x6309;&#x7167;flannel -&gt; docker -&gt; kubelet -&gt; kube-proxy&#x7684;&#x987A;&#x5E8F;&#x542F;&#x52A8;&#x7684;&#xFF0C;&#x6211;&#x4EEC;&#x4E0B;&#x9762;&#x4E5F;&#x4F1A;&#x6309;&#x7167;&#x8BE5;&#x987A;&#x5E8F;&#x6765;&#x8BB2;&#x89E3;&#xFF0C;flannel&#x7684;&#x7F51;&#x7EDC;&#x5212;&#x5206;&#x548C;&#x5982;&#x4F55;&#x4E0E;docker&#x4EA4;&#x4E92;&#xFF0C;&#x5982;&#x4F55;&#x901A;&#x8FC7;iptables&#x8BBF;&#x95EE;service&#x3002;</p>
<h3 id="flannel">Flannel</h3>
2018-02-06 11:33:27 +08:00
<p>Flannel&#x662F;&#x4F5C;&#x4E3A;&#x4E00;&#x4E2A;&#x4E8C;&#x8FDB;&#x5236;&#x6587;&#x4EF6;&#x7684;&#x65B9;&#x5F0F;&#x90E8;&#x7F72;&#x5728;&#x6BCF;&#x4E2A;node&#x4E0A;&#xFF0C;&#x4E3B;&#x8981;&#x5B9E;&#x73B0;&#x4E24;&#x4E2A;&#x529F;&#x80FD;&#xFF1A;</p>
<ul>
<li>&#x4E3A;&#x6BCF;&#x4E2A;node&#x5206;&#x914D;subnet&#xFF0C;&#x5BB9;&#x5668;&#x5C06;&#x81EA;&#x52A8;&#x4ECE;&#x8BE5;&#x5B50;&#x7F51;&#x4E2D;&#x83B7;&#x53D6;IP&#x5730;&#x5740;</li>
<li>&#x5F53;&#x6709;node&#x52A0;&#x5165;&#x5230;&#x7F51;&#x7EDC;&#x4E2D;&#x65F6;&#xFF0C;&#x4E3A;&#x6BCF;&#x4E2A;node&#x589E;&#x52A0;&#x8DEF;&#x7531;&#x914D;&#x7F6E;</li>
</ul>
<p>&#x4E0B;&#x9762;&#x662F;&#x4F7F;&#x7528;<code>host-gw</code> backend&#x7684;flannel&#x7F51;&#x7EDC;&#x67B6;&#x6784;&#x56FE;&#xFF1A;</p>
2018-03-12 17:48:23 +08:00
<figure id="fig3.2.1.1"><img src="../images/flannel-networking.png" alt="flannel&#x7F51;&#x7EDC;&#x67B6;&#x6784;&#xFF08;&#x56FE;&#x7247;&#x6765;&#x81EA;openshift&#xFF09;"><figcaption>&#x56FE;&#x7247; - flannel&#x7F51;&#x7EDC;&#x67B6;&#x6784;&#xFF08;&#x56FE;&#x7247;&#x6765;&#x81EA;openshift&#xFF09;</figcaption></figure>
2018-02-06 11:33:27 +08:00
<p><strong>&#x6CE8;&#x610F;</strong>&#xFF1A;&#x4EE5;&#x4E0A;IP&#x975E;&#x672C;&#x793A;&#x4F8B;&#x4E2D;&#x7684;IP&#xFF0C;&#x4F46;&#x662F;&#x4E0D;&#x5F71;&#x54CD;&#x8BFB;&#x8005;&#x7406;&#x89E3;&#x3002;</p>
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<p>Node1&#x4E0A;&#x7684;flannel&#x914D;&#x7F6E;&#x5982;&#x4E0B;:</p>
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<pre class="language-"><code class="lang-bash"><span class="token punctuation">[</span>root@node1 ~<span class="token punctuation">]</span><span class="token comment" spellcheck="true"># cat /usr/lib/systemd/system/flanneld.service</span>
<span class="token punctuation">[</span>Unit<span class="token punctuation">]</span>
Description<span class="token operator">=</span>Flanneld overlay address etcd agent
After<span class="token operator">=</span>network.target
After<span class="token operator">=</span>network-online.target
Wants<span class="token operator">=</span>network-online.target
After<span class="token operator">=</span>etcd.service
Before<span class="token operator">=</span>docker.service
<span class="token punctuation">[</span>Service<span class="token punctuation">]</span>
Type<span class="token operator">=</span>notify
EnvironmentFile<span class="token operator">=</span>/etc/sysconfig/flanneld
EnvironmentFile<span class="token operator">=</span>-/etc/sysconfig/docker-network
ExecStart<span class="token operator">=</span>/usr/bin/flanneld-start <span class="token variable">$FLANNEL_OPTIONS</span>
ExecStartPost<span class="token operator">=</span>/usr/libexec/flannel/mk-docker-opts.sh -k DOCKER_NETWORK_OPTIONS -d /run/flannel/docker
Restart<span class="token operator">=</span>on-failure
<span class="token punctuation">[</span>Install<span class="token punctuation">]</span>
WantedBy<span class="token operator">=</span>multi-user.target
RequiredBy<span class="token operator">=</span>docker.service
2018-02-05 22:14:09 +08:00
</code></pre>
<p>&#x5176;&#x4E2D;&#x6709;&#x4E24;&#x4E2A;&#x73AF;&#x5883;&#x53D8;&#x91CF;&#x6587;&#x4EF6;&#x7684;&#x914D;&#x7F6E;&#x5982;&#x4E0B;&#xFF1A;</p>
2018-02-20 18:00:08 +08:00
<pre class="language-"><code class="lang-bash"><span class="token punctuation">[</span>root@node1 ~<span class="token punctuation">]</span><span class="token comment" spellcheck="true"># cat /etc/sysconfig/flanneld</span>
<span class="token comment" spellcheck="true"># Flanneld configuration options</span>
FLANNEL_ETCD_ENDPOINTS<span class="token operator">=</span><span class="token string">&quot;http://172.17.8.101:2379&quot;</span>
FLANNEL_ETCD_PREFIX<span class="token operator">=</span><span class="token string">&quot;/kube-centos/network&quot;</span>
FLANNEL_OPTIONS<span class="token operator">=</span><span class="token string">&quot;-iface=eth2&quot;</span>
2018-02-05 22:14:09 +08:00
</code></pre>
<p>&#x4E0A;&#x9762;&#x7684;&#x914D;&#x7F6E;&#x6587;&#x4EF6;&#x4EC5;&#x4F9B;flanneld&#x4F7F;&#x7528;&#x3002;</p>
2018-02-20 18:00:08 +08:00
<pre class="language-"><code class="lang-bash"><span class="token punctuation">[</span>root@node1 ~<span class="token punctuation">]</span><span class="token comment" spellcheck="true"># cat /etc/sysconfig/docker-network</span>
<span class="token comment" spellcheck="true"># /etc/sysconfig/docker-network</span>
DOCKER_NETWORK_OPTIONS<span class="token operator">=</span>
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</code></pre>
<p>&#x8FD8;&#x6709;&#x4E00;&#x4E2A;<code>ExecStartPost=/usr/libexec/flannel/mk-docker-opts.sh -k DOCKER_NETWORK_OPTIONS -d /run/flannel/docker</code>&#xFF0C;&#x5176;&#x4E2D;&#x7684;<code>/usr/libexec/flannel/mk-docker-opts.sh</code>&#x811A;&#x672C;&#x662F;&#x5728;flanneld&#x542F;&#x52A8;&#x540E;&#x8FD0;&#x884C;&#xFF0C;&#x5C06;&#x4F1A;&#x751F;&#x6210;&#x4E24;&#x4E2A;&#x73AF;&#x5883;&#x53D8;&#x91CF;&#x914D;&#x7F6E;&#x6587;&#x4EF6;&#xFF1A;</p>
<ul>
<li>/run/flannel/docker</li>
<li>/run/flannel/subnet.env</li>
</ul>
<p>&#x6211;&#x4EEC;&#x518D;&#x6765;&#x770B;&#x4E0B;<code>/run/flannel/docker</code>&#x7684;&#x914D;&#x7F6E;&#x3002;</p>
2018-02-20 18:00:08 +08:00
<pre class="language-"><code class="lang-bash"><span class="token punctuation">[</span>root@node1 ~<span class="token punctuation">]</span><span class="token comment" spellcheck="true"># cat /run/flannel/docker</span>
DOCKER_OPT_BIP<span class="token operator">=</span><span class="token string">&quot;--bip=172.33.68.1/24&quot;</span>
DOCKER_OPT_IPMASQ<span class="token operator">=</span><span class="token string">&quot;--ip-masq=true&quot;</span>
DOCKER_OPT_MTU<span class="token operator">=</span><span class="token string">&quot;--mtu=1500&quot;</span>
DOCKER_NETWORK_OPTIONS<span class="token operator">=</span><span class="token string">&quot; --bip=172.33.68.1/24 --ip-masq=true --mtu=1500&quot;</span>
2018-02-05 22:14:09 +08:00
</code></pre>
2018-02-15 11:03:50 +08:00
<p>&#x5982;&#x679C;&#x4F60;&#x4F7F;&#x7528;<code>systemctl</code>&#x547D;&#x4EE4;&#x5148;&#x542F;&#x52A8;flannel&#x540E;&#x542F;&#x52A8;docker&#x7684;&#x8BDD;&#xFF0C;docker&#x5C06;&#x4F1A;&#x8BFB;&#x53D6;&#x4EE5;&#x4E0A;&#x73AF;&#x5883;&#x53D8;&#x91CF;&#x3002;</p>
2018-02-05 22:14:09 +08:00
<p>&#x6211;&#x4EEC;&#x518D;&#x6765;&#x770B;&#x4E0B;<code>/run/flannel/subnet.env</code>&#x7684;&#x914D;&#x7F6E;&#x3002;</p>
2018-02-20 18:00:08 +08:00
<pre class="language-"><code class="lang-bash"><span class="token punctuation">[</span>root@node1 ~<span class="token punctuation">]</span><span class="token comment" spellcheck="true"># cat /run/flannel/subnet.env</span>
FLANNEL_NETWORK<span class="token operator">=</span>172.33.0.0/16
FLANNEL_SUBNET<span class="token operator">=</span>172.33.68.1/24
FLANNEL_MTU<span class="token operator">=</span>1500
FLANNEL_IPMASQ<span class="token operator">=</span>false
2018-02-05 22:14:09 +08:00
</code></pre>
<p>&#x4EE5;&#x4E0A;&#x73AF;&#x5883;&#x53D8;&#x91CF;&#x662F;flannel&#x5411;etcd&#x4E2D;&#x6CE8;&#x518C;&#x7684;&#x3002;</p>
<h3 id="docker">Docker</h3>
<p>Node1&#x7684;docker&#x914D;&#x7F6E;&#x5982;&#x4E0B;&#xFF1A;</p>
2018-02-20 18:00:08 +08:00
<pre class="language-"><code class="lang-bash"><span class="token punctuation">[</span>root@node1 ~<span class="token punctuation">]</span><span class="token comment" spellcheck="true"># cat /usr/lib/systemd/system/docker.service</span>
<span class="token punctuation">[</span>Unit<span class="token punctuation">]</span>
Description<span class="token operator">=</span>Docker Application Container Engine
Documentation<span class="token operator">=</span>http://docs.docker.com
After<span class="token operator">=</span>network.target rhel-push-plugin.socket registries.service
Wants<span class="token operator">=</span>docker-storage-setup.service
Requires<span class="token operator">=</span>docker-cleanup.timer
<span class="token punctuation">[</span>Service<span class="token punctuation">]</span>
Type<span class="token operator">=</span>notify
NotifyAccess<span class="token operator">=</span>all
EnvironmentFile<span class="token operator">=</span>-/run/containers/registries.conf
EnvironmentFile<span class="token operator">=</span>-/etc/sysconfig/docker
EnvironmentFile<span class="token operator">=</span>-/etc/sysconfig/docker-storage
EnvironmentFile<span class="token operator">=</span>-/etc/sysconfig/docker-network
Environment<span class="token operator">=</span>GOTRACEBACK<span class="token operator">=</span>crash
Environment<span class="token operator">=</span>DOCKER_HTTP_HOST_COMPAT<span class="token operator">=</span>1
Environment<span class="token operator">=</span>PATH<span class="token operator">=</span>/usr/libexec/docker:/usr/bin:/usr/sbin
ExecStart<span class="token operator">=</span>/usr/bin/dockerd-current \
--add-runtime docker-runc<span class="token operator">=</span>/usr/libexec/docker/docker-runc-current \
--default-runtime<span class="token operator">=</span>docker-runc \
--exec-opt native.cgroupdriver<span class="token operator">=</span>systemd \
--userland-proxy-path<span class="token operator">=</span>/usr/libexec/docker/docker-proxy-current \
<span class="token variable">$OPTIONS</span> \
<span class="token variable">$DOCKER_STORAGE_OPTIONS</span> \
<span class="token variable">$DOCKER_NETWORK_OPTIONS</span> \
<span class="token variable">$ADD_REGISTRY</span> \
<span class="token variable">$BLOCK_REGISTRY</span> \
<span class="token variable">$INSECURE_REGISTRY</span>\
<span class="token variable">$REGISTRIES</span>
ExecReload<span class="token operator">=</span>/bin/kill -s HUP <span class="token variable">$MAINPID</span>
LimitNOFILE<span class="token operator">=</span>1048576
LimitNPROC<span class="token operator">=</span>1048576
LimitCORE<span class="token operator">=</span>infinity
TimeoutStartSec<span class="token operator">=</span>0
Restart<span class="token operator">=</span>on-abnormal
MountFlags<span class="token operator">=</span>slave
KillMode<span class="token operator">=</span>process
<span class="token punctuation">[</span>Install<span class="token punctuation">]</span>
WantedBy<span class="token operator">=</span>multi-user.target
2018-02-05 22:14:09 +08:00
</code></pre>
<p>&#x67E5;&#x770B;Node1&#x4E0A;&#x7684;docker&#x542F;&#x52A8;&#x53C2;&#x6570;&#xFF1A;</p>
2018-02-20 18:00:08 +08:00
<pre class="language-"><code class="lang-bash"><span class="token punctuation">[</span>root@node1 ~<span class="token punctuation">]</span><span class="token comment" spellcheck="true"># systemctl status -l docker</span>
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&#x25CF; docker.service - Docker Application Container Engine
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Loaded: loaded <span class="token punctuation">(</span>/usr/lib/systemd/system/docker.service<span class="token punctuation">;</span> enabled<span class="token punctuation">;</span> vendor preset: disabled<span class="token punctuation">)</span>
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Drop-In: /usr/lib/systemd/system/docker.service.d
&#x2514;&#x2500;flannel.conf
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Active: active <span class="token punctuation">(</span>running<span class="token punctuation">)</span> since Fri 2018-02-02 22:52:43 CST<span class="token punctuation">;</span> 2h 28min ago
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Docs: http://docs.docker.com
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Main PID: 4334 <span class="token punctuation">(</span>dockerd-current<span class="token punctuation">)</span>
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CGroup: /system.slice/docker.service
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&#x2023; 4334 /usr/bin/dockerd-current --add-runtime docker-runc<span class="token operator">=</span>/usr/libexec/docker/docker-runc-current --default-runtime<span class="token operator">=</span>docker-runc --exec-opt native.cgroupdriver<span class="token operator">=</span>systemd --userland-proxy-path<span class="token operator">=</span>/usr/libexec/docker/docker-proxy-current --selinux-enabled --log-driver<span class="token operator">=</span>journald --signature-verification<span class="token operator">=</span>false --bip<span class="token operator">=</span>172.33.68.1/24 --ip-masq<span class="token operator">=</span>true --mtu<span class="token operator">=</span>1500
2018-02-05 22:14:09 +08:00
</code></pre>
<p>&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x770B;&#x5230;&#x5728;docker&#x5728;&#x542F;&#x52A8;&#x65F6;&#x6709;&#x5982;&#x4E0B;&#x53C2;&#x6570;&#xFF1A;<code>--bip=172.33.68.1/24 --ip-masq=true --mtu=1500</code>&#x3002;&#x4E0A;&#x8FF0;&#x53C2;&#x6570;flannel&#x542F;&#x52A8;&#x65F6;&#x8FD0;&#x884C;&#x7684;&#x811A;&#x672C;&#x751F;&#x6210;&#x7684;&#xFF0C;&#x901A;&#x8FC7;&#x73AF;&#x5883;&#x53D8;&#x91CF;&#x4F20;&#x9012;&#x8FC7;&#x6765;&#x7684;&#x3002;</p>
<p>&#x6211;&#x4EEC;&#x67E5;&#x770B;&#x4E0B;node1&#x5BBF;&#x4E3B;&#x673A;&#x4E0A;&#x7684;&#x7F51;&#x7EDC;&#x63A5;&#x53E3;&#xFF1A;</p>
2018-02-20 18:00:08 +08:00
<pre class="language-"><code class="lang-bash"><span class="token punctuation">[</span>root@node1 ~<span class="token punctuation">]</span><span class="token comment" spellcheck="true"># ip addr</span>
1: lo: <span class="token operator">&lt;</span>LOOPBACK,UP,LOWER_UP<span class="token operator">&gt;</span> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
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link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2018-02-20 18:00:08 +08:00
2: eth0: <span class="token operator">&lt;</span>BROADCAST,MULTICAST,UP,LOWER_UP<span class="token operator">&gt;</span> mtu 1500 qdisc pfifo_fast state UP qlen 1000
2018-02-05 22:14:09 +08:00
link/ether 52:54:00:00:57:32 brd ff:ff:ff:ff:ff:ff
inet 10.0.2.15/24 brd 10.0.2.255 scope global dynamic eth0
valid_lft 85095sec preferred_lft 85095sec
2018-02-20 18:00:08 +08:00
inet6 fe80::5054:ff:fe00:5732/64 scope <span class="token function">link</span>
2018-02-05 22:14:09 +08:00
valid_lft forever preferred_lft forever
2018-02-20 18:00:08 +08:00
3: eth1: <span class="token operator">&lt;</span>BROADCAST,MULTICAST,UP,LOWER_UP<span class="token operator">&gt;</span> mtu 1500 qdisc pfifo_fast state UP qlen 1000
2018-02-05 22:14:09 +08:00
link/ether 08:00:27:7b:0f:b1 brd ff:ff:ff:ff:ff:ff
inet 172.17.8.101/24 brd 172.17.8.255 scope global eth1
valid_lft forever preferred_lft forever
2018-02-20 18:00:08 +08:00
4: eth2: <span class="token operator">&lt;</span>BROADCAST,MULTICAST,UP,LOWER_UP<span class="token operator">&gt;</span> mtu 1500 qdisc pfifo_fast state UP qlen 1000
2018-02-05 22:14:09 +08:00
link/ether 08:00:27:ef:25:06 brd ff:ff:ff:ff:ff:ff
inet 172.30.113.231/21 brd 172.30.119.255 scope global dynamic eth2
valid_lft 85096sec preferred_lft 85096sec
2018-02-20 18:00:08 +08:00
inet6 fe80::a00:27ff:feef:2506/64 scope <span class="token function">link</span>
2018-02-05 22:14:09 +08:00
valid_lft forever preferred_lft forever
2018-02-20 18:00:08 +08:00
5: docker0: <span class="token operator">&lt;</span>BROADCAST,MULTICAST,UP,LOWER_UP<span class="token operator">&gt;</span> mtu 1500 qdisc noqueue state UP
2018-02-05 22:14:09 +08:00
link/ether 02:42:d0:ae:80:ea brd ff:ff:ff:ff:ff:ff
inet 172.33.68.1/24 scope global docker0
valid_lft forever preferred_lft forever
2018-02-20 18:00:08 +08:00
inet6 fe80::42:d0ff:feae:80ea/64 scope <span class="token function">link</span>
2018-02-05 22:14:09 +08:00
valid_lft forever preferred_lft forever
2018-02-20 18:00:08 +08:00
7: veth295bef2@if6: <span class="token operator">&lt;</span>BROADCAST,MULTICAST,UP,LOWER_UP<span class="token operator">&gt;</span> mtu 1500 qdisc noqueue master docker0 state UP
2018-02-05 22:14:09 +08:00
link/ether 6a:72:d7:9f:29:19 brd ff:ff:ff:ff:ff:ff link-netnsid 0
2018-02-20 18:00:08 +08:00
inet6 fe80::6872:d7ff:fe9f:2919/64 scope <span class="token function">link</span>
2018-02-05 22:14:09 +08:00
valid_lft forever preferred_lft forever
</code></pre>
<p>&#x6211;&#x4EEC;&#x5206;&#x7C7B;&#x6765;&#x89E3;&#x91CA;&#x4E0B;&#x8BE5;&#x865A;&#x62DF;&#x673A;&#x4E2D;&#x7684;&#x7F51;&#x7EDC;&#x63A5;&#x53E3;&#x3002;</p>
<ul>
<li>lo&#xFF1A;&#x56DE;&#x73AF;&#x7F51;&#x7EDC;&#xFF0C;127.0.0.1</li>
<li>eth0&#xFF1A;NAT&#x7F51;&#x7EDC;&#xFF0C;&#x865A;&#x62DF;&#x673A;&#x521B;&#x5EFA;&#x65F6;&#x81EA;&#x52A8;&#x5206;&#x914D;&#xFF0C;&#x4EC5;&#x53EF;&#x4EE5;&#x5728;&#x51E0;&#x53F0;&#x865A;&#x62DF;&#x673A;&#x4E4B;&#x95F4;&#x8BBF;&#x95EE;</li>
<li>eth1&#xFF1A;bridge&#x7F51;&#x7EDC;&#xFF0C;&#x4F7F;&#x7528;vagrant&#x5206;&#x914D;&#x7ED9;&#x865A;&#x62DF;&#x673A;&#x7684;&#x5730;&#x5740;&#xFF0C;&#x865A;&#x62DF;&#x673A;&#x4E4B;&#x95F4;&#x548C;&#x672C;&#x5730;&#x7535;&#x8111;&#x90FD;&#x53EF;&#x4EE5;&#x8BBF;&#x95EE;</li>
<li>eth2&#xFF1A;bridge&#x7F51;&#x7EDC;&#xFF0C;&#x4F7F;&#x7528;DHCP&#x5206;&#x914D;&#xFF0C;&#x7528;&#x4E8E;&#x8BBF;&#x95EE;&#x4E92;&#x8054;&#x7F51;&#x7684;&#x7F51;&#x5361;</li>
<li>docker0&#xFF1A;bridge&#x7F51;&#x7EDC;&#xFF0C;docker&#x9ED8;&#x8BA4;&#x4F7F;&#x7528;&#x7684;&#x7F51;&#x5361;&#xFF0C;&#x4F5C;&#x4E3A;&#x8BE5;&#x8282;&#x70B9;&#x4E0A;&#x6240;&#x6709;&#x5BB9;&#x5668;&#x7684;&#x865A;&#x62DF;&#x4EA4;&#x6362;&#x673A;</li>
<li>veth295bef2@if6&#xFF1A;veth pair&#xFF0C;&#x8FDE;&#x63A5;docker0&#x548C;Pod&#x4E2D;&#x7684;&#x5BB9;&#x5668;&#x3002;veth pair&#x53EF;&#x4EE5;&#x7406;&#x89E3;&#x4E3A;&#x4F7F;&#x7528;&#x7F51;&#x7EBF;&#x8FDE;&#x63A5;&#x597D;&#x7684;&#x4E24;&#x4E2A;&#x63A5;&#x53E3;&#xFF0C;&#x628A;&#x4E24;&#x4E2A;&#x7AEF;&#x53E3;&#x653E;&#x5230;&#x4E24;&#x4E2A;namespace&#x4E2D;&#xFF0C;&#x90A3;&#x4E48;&#x8FD9;&#x4E24;&#x4E2A;namespace&#x5C31;&#x80FD;&#x6253;&#x901A;&#x3002;&#x53C2;&#x8003;<a href="http://cizixs.com/2017/02/10/network-virtualization-network-namespace" target="_blank">linux &#x7F51;&#x7EDC;&#x865A;&#x62DF;&#x5316;&#xFF1A; network namespace &#x7B80;&#x4ECB;</a>&#x3002;</li>
</ul>
<p>&#x6211;&#x4EEC;&#x518D;&#x770B;&#x4E0B;&#x8BE5;&#x8282;&#x70B9;&#x7684;docker&#x4E0A;&#x6709;&#x54EA;&#x4E9B;&#x7F51;&#x7EDC;&#x3002;</p>
2018-02-20 18:00:08 +08:00
<pre class="language-"><code class="lang-bash"><span class="token punctuation">[</span>root@node1 ~<span class="token punctuation">]</span><span class="token comment" spellcheck="true"># docker network ls</span>
2018-02-05 22:14:09 +08:00
NETWORK ID NAME DRIVER SCOPE
2018-02-20 18:00:08 +08:00
940bb75e653b bridge bridge local
d94c046e105d host host local
2db7597fd546 none null local
2018-02-05 22:14:09 +08:00
</code></pre>
<p>&#x518D;&#x68C0;&#x67E5;&#x4E0B;bridge&#x7F51;&#x7EDC;<code>940bb75e653b</code>&#x7684;&#x4FE1;&#x606F;&#x3002;</p>
2018-02-20 18:00:08 +08:00
<pre class="language-"><code class="lang-bash"><span class="token punctuation">[</span>root@node1 ~<span class="token punctuation">]</span><span class="token comment" spellcheck="true"># docker network inspect 940bb75e653b</span>
<span class="token punctuation">[</span>
<span class="token punctuation">{</span>
<span class="token string">&quot;Name&quot;</span><span class="token keyword">:</span> <span class="token string">&quot;bridge&quot;</span>,
<span class="token string">&quot;Id&quot;</span><span class="token keyword">:</span> <span class="token string">&quot;940bb75e653bfa10dab4cce8813c2b3ce17501e4e4935f7dc13805a61b732d2c&quot;</span>,
<span class="token string">&quot;Scope&quot;</span><span class="token keyword">:</span> <span class="token string">&quot;local&quot;</span>,
<span class="token string">&quot;Driver&quot;</span><span class="token keyword">:</span> <span class="token string">&quot;bridge&quot;</span>,
<span class="token string">&quot;EnableIPv6&quot;</span><span class="token keyword">:</span> false,
<span class="token string">&quot;IPAM&quot;</span><span class="token keyword">:</span> <span class="token punctuation">{</span>
<span class="token string">&quot;Driver&quot;</span><span class="token keyword">:</span> <span class="token string">&quot;default&quot;</span>,
<span class="token string">&quot;Options&quot;</span><span class="token keyword">:</span> null,
<span class="token string">&quot;Config&quot;</span><span class="token keyword">:</span> <span class="token punctuation">[</span>
<span class="token punctuation">{</span>
<span class="token string">&quot;Subnet&quot;</span><span class="token keyword">:</span> <span class="token string">&quot;172.33.68.1/24&quot;</span>,
<span class="token string">&quot;Gateway&quot;</span><span class="token keyword">:</span> <span class="token string">&quot;172.33.68.1&quot;</span>
<span class="token punctuation">}</span>
<span class="token punctuation">]</span>
<span class="token punctuation">}</span>,
<span class="token string">&quot;Internal&quot;</span><span class="token keyword">:</span> false,
<span class="token string">&quot;Containers&quot;</span><span class="token keyword">:</span> <span class="token punctuation">{</span>
<span class="token string">&quot;944d4aa660e30e1be9a18d30c9dcfa3b0504d1e5dbd00f3004b76582f1c9a85b&quot;</span><span class="token keyword">:</span> <span class="token punctuation">{</span>
<span class="token string">&quot;Name&quot;</span><span class="token keyword">:</span> <span class="token string">&quot;k8s_POD_coredns-5984fb8cbb-sjqv9_kube-system_c5a2e959-082a-11e8-b4cd-525400005732_0&quot;</span>,
<span class="token string">&quot;EndpointID&quot;</span><span class="token keyword">:</span> <span class="token string">&quot;7397d7282e464fc4ec5756d6b328df889cdf46134dbbe3753517e175d3844a85&quot;</span>,
<span class="token string">&quot;MacAddress&quot;</span><span class="token keyword">:</span> <span class="token string">&quot;02:42:ac:21:44:02&quot;</span>,
<span class="token string">&quot;IPv4Address&quot;</span><span class="token keyword">:</span> <span class="token string">&quot;172.33.68.2/24&quot;</span>,
<span class="token string">&quot;IPv6Address&quot;</span><span class="token keyword">:</span> <span class="token string">&quot;&quot;</span>
<span class="token punctuation">}</span>
<span class="token punctuation">}</span>,
<span class="token string">&quot;Options&quot;</span><span class="token keyword">:</span> <span class="token punctuation">{</span>
<span class="token string">&quot;com.docker.network.bridge.default_bridge&quot;</span><span class="token keyword">:</span> <span class="token string">&quot;true&quot;</span>,
<span class="token string">&quot;com.docker.network.bridge.enable_icc&quot;</span><span class="token keyword">:</span> <span class="token string">&quot;true&quot;</span>,
<span class="token string">&quot;com.docker.network.bridge.enable_ip_masquerade&quot;</span><span class="token keyword">:</span> <span class="token string">&quot;true&quot;</span>,
<span class="token string">&quot;com.docker.network.bridge.host_binding_ipv4&quot;</span><span class="token keyword">:</span> <span class="token string">&quot;0.0.0.0&quot;</span>,
<span class="token string">&quot;com.docker.network.bridge.name&quot;</span><span class="token keyword">:</span> <span class="token string">&quot;docker0&quot;</span>,
<span class="token string">&quot;com.docker.network.driver.mtu&quot;</span><span class="token keyword">:</span> <span class="token string">&quot;1500&quot;</span>
<span class="token punctuation">}</span>,
<span class="token string">&quot;Labels&quot;</span><span class="token keyword">:</span> <span class="token punctuation">{</span><span class="token punctuation">}</span>
<span class="token punctuation">}</span>
<span class="token punctuation">]</span>
2018-02-05 22:14:09 +08:00
</code></pre>
<p>&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x770B;&#x5230;&#x8BE5;&#x7F51;&#x7EDC;&#x4E2D;&#x7684;<code>Config</code>&#x4E0E;docker&#x7684;&#x542F;&#x52A8;&#x914D;&#x7F6E;&#x76F8;&#x7B26;&#x3002;</p>
<p>Node1&#x4E0A;&#x8FD0;&#x884C;&#x7684;&#x5BB9;&#x5668;&#xFF1A;</p>
2018-02-20 18:00:08 +08:00
<pre class="language-"><code class="lang-bash"><span class="token punctuation">[</span>root@node1 ~<span class="token punctuation">]</span><span class="token comment" spellcheck="true"># docker ps</span>
2018-02-05 22:14:09 +08:00
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
2018-02-20 18:00:08 +08:00
a37407a234dd docker.io/coredns/coredns@sha256:adf2e5b4504ef9ffa43f16010bd064273338759e92f6f616dd159115748799bc <span class="token string">&quot;/coredns -conf /etc/&quot;</span> About an hour ago Up About an hour k8s_coredns_coredns-5984fb8cbb-sjqv9_kube-system_c5a2e959-082a-11e8-b4cd-525400005732_0
944d4aa660e3 docker.io/openshift/origin-pod <span class="token string">&quot;/usr/bin/pod&quot;</span> About an hour ago Up About an hour k8s_POD_coredns-5984fb8cbb-sjqv9_kube-system_c5a2e959-082a-11e8-b4cd-525400005732_0
2018-02-05 22:14:09 +08:00
</code></pre>
<p>&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x770B;&#x5230;&#x5F53;&#x524D;&#x5DF2;&#x7ECF;&#x6709;2&#x4E2A;&#x5BB9;&#x5668;&#x5728;&#x8FD0;&#x884C;&#x3002;</p>
<p>Node1&#x4E0A;&#x7684;&#x8DEF;&#x7531;&#x4FE1;&#x606F;&#xFF1A;</p>
2018-02-20 18:00:08 +08:00
<pre class="language-"><code class="lang-bash"><span class="token punctuation">[</span>root@node1 ~<span class="token punctuation">]</span><span class="token comment" spellcheck="true"># route -n</span>
2018-02-05 22:14:09 +08:00
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 10.0.2.2 0.0.0.0 UG 100 0 0 eth0
0.0.0.0 172.30.116.1 0.0.0.0 UG 101 0 0 eth2
10.0.2.0 0.0.0.0 255.255.255.0 U 100 0 0 eth0
172.17.8.0 0.0.0.0 255.255.255.0 U 100 0 0 eth1
172.30.112.0 0.0.0.0 255.255.248.0 U 100 0 0 eth2
172.33.68.0 0.0.0.0 255.255.255.0 U 0 0 0 docker0
172.33.96.0 172.30.118.65 255.255.255.0 UG 0 0 0 eth2
</code></pre>
<p>&#x4EE5;&#x4E0A;&#x8DEF;&#x7531;&#x4FE1;&#x606F;&#x662F;&#x7531;flannel&#x6DFB;&#x52A0;&#x7684;&#xFF0C;&#x5F53;&#x6709;&#x65B0;&#x7684;&#x8282;&#x70B9;&#x52A0;&#x5165;&#x5230;Kubernetes&#x96C6;&#x7FA4;&#x4E2D;&#x540E;&#xFF0C;&#x6BCF;&#x4E2A;&#x8282;&#x70B9;&#x4E0A;&#x7684;&#x8DEF;&#x7531;&#x8868;&#x90FD;&#x5C06;&#x589E;&#x52A0;&#x3002;</p>
<p>&#x6211;&#x4EEC;&#x5728;node&#x4E0A;&#x6765;<code>traceroute</code>&#x4E0B;node3&#x4E0A;&#x7684;<code>coredns-5984fb8cbb-tkfrc</code>&#x5BB9;&#x5668;&#xFF0C;&#x5176;IP&#x5730;&#x5740;&#x662F;<code>172.33.96.3</code>&#xFF0C;&#x770B;&#x770B;&#x5176;&#x8DEF;&#x7531;&#x4FE1;&#x606F;&#x3002;</p>
2018-02-20 18:00:08 +08:00
<pre class="language-"><code class="lang-bash"><span class="token punctuation">[</span>root@node1 ~<span class="token punctuation">]</span><span class="token comment" spellcheck="true"># traceroute 172.33.96.3</span>
<span class="token function">traceroute</span> to 172.33.96.3 <span class="token punctuation">(</span>172.33.96.3<span class="token punctuation">)</span>, 30 hops max, 60 byte packets
1 172.30.118.65 <span class="token punctuation">(</span>172.30.118.65<span class="token punctuation">)</span> 0.518 ms 0.367 ms 0.398 ms
2 172.33.96.3 <span class="token punctuation">(</span>172.33.96.3<span class="token punctuation">)</span> 0.451 ms 0.352 ms 0.223 ms
2018-02-05 22:14:09 +08:00
</code></pre>
<p>&#x6211;&#x4EEC;&#x770B;&#x5230;&#x8DEF;&#x7531;&#x76F4;&#x63A5;&#x7ECF;&#x8FC7;node3&#x7684;&#x516C;&#x7F51;IP&#x540E;&#x5C31;&#x5230;&#x8FBE;&#x4E86;node3&#x8282;&#x70B9;&#x4E0A;&#x7684;Pod&#x3002;</p>
<p>Node1&#x7684;iptables&#x4FE1;&#x606F;&#xFF1A;</p>
2018-02-20 18:00:08 +08:00
<pre class="language-"><code class="lang-bash"><span class="token punctuation">[</span>root@node1 ~<span class="token punctuation">]</span><span class="token comment" spellcheck="true"># iptables -L</span>
Chain INPUT <span class="token punctuation">(</span>policy ACCEPT<span class="token punctuation">)</span>
target prot opt <span class="token function">source</span> destination
2018-02-05 22:14:09 +08:00
KUBE-FIREWALL all -- anywhere anywhere
2018-02-20 18:00:08 +08:00
KUBE-SERVICES all -- anywhere anywhere /* kubernetes <span class="token function">service</span> portals */
2018-02-05 22:14:09 +08:00
2018-02-20 18:00:08 +08:00
Chain FORWARD <span class="token punctuation">(</span>policy ACCEPT<span class="token punctuation">)</span>
target prot opt <span class="token function">source</span> destination
2018-02-05 22:14:09 +08:00
KUBE-FORWARD all -- anywhere anywhere /* kubernetes forward rules */
DOCKER-ISOLATION all -- anywhere anywhere
DOCKER all -- anywhere anywhere
ACCEPT all -- anywhere anywhere ctstate RELATED,ESTABLISHED
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere anywhere
2018-02-20 18:00:08 +08:00
Chain OUTPUT <span class="token punctuation">(</span>policy ACCEPT<span class="token punctuation">)</span>
target prot opt <span class="token function">source</span> destination
2018-02-05 22:14:09 +08:00
KUBE-FIREWALL all -- anywhere anywhere
2018-02-20 18:00:08 +08:00
KUBE-SERVICES all -- anywhere anywhere /* kubernetes <span class="token function">service</span> portals */
2018-02-05 22:14:09 +08:00
2018-02-20 18:00:08 +08:00
Chain DOCKER <span class="token punctuation">(</span>1 references<span class="token punctuation">)</span>
target prot opt <span class="token function">source</span> destination
2018-02-05 22:14:09 +08:00
2018-02-20 18:00:08 +08:00
Chain DOCKER-ISOLATION <span class="token punctuation">(</span>1 references<span class="token punctuation">)</span>
target prot opt <span class="token function">source</span> destination
2018-02-05 22:14:09 +08:00
RETURN all -- anywhere anywhere
2018-02-20 18:00:08 +08:00
Chain KUBE-FIREWALL <span class="token punctuation">(</span>2 references<span class="token punctuation">)</span>
target prot opt <span class="token function">source</span> destination
DROP all -- anywhere anywhere /* kubernetes firewall <span class="token keyword">for</span> dropping marked packets */ mark match 0x8000/0x8000
2018-02-05 22:14:09 +08:00
2018-02-20 18:00:08 +08:00
Chain KUBE-FORWARD <span class="token punctuation">(</span>1 references<span class="token punctuation">)</span>
target prot opt <span class="token function">source</span> destination
2018-02-05 22:14:09 +08:00
ACCEPT all -- anywhere anywhere /* kubernetes forwarding rules */ mark match 0x4000/0x4000
2018-02-20 18:00:08 +08:00
ACCEPT all -- 10.254.0.0/16 anywhere /* kubernetes forwarding conntrack pod <span class="token function">source</span> rule */ ctstate RELATED,ESTABLISHED
2018-02-05 22:14:09 +08:00
ACCEPT all -- anywhere 10.254.0.0/16 /* kubernetes forwarding conntrack pod destination rule */ ctstate RELATED,ESTABLISHED
2018-02-20 18:00:08 +08:00
Chain KUBE-SERVICES <span class="token punctuation">(</span>2 references<span class="token punctuation">)</span>
target prot opt <span class="token function">source</span> destination
2018-02-05 22:14:09 +08:00
</code></pre>
<p>&#x4ECE;&#x4E0A;&#x9762;&#x7684;iptables&#x4E2D;&#x53EF;&#x4EE5;&#x770B;&#x5230;&#x6CE8;&#x5165;&#x4E86;&#x5F88;&#x591A;Kuberentes service&#x7684;&#x89C4;&#x5219;&#xFF0C;&#x8BF7;&#x53C2;&#x8003;<a href="https://www.cnyunwei.cc/archives/393" target="_blank">iptables &#x89C4;&#x5219;</a>&#x83B7;&#x53D6;&#x66F4;&#x591A;&#x8BE6;&#x7EC6;&#x4FE1;&#x606F;&#x3002;</p>
<h2 id="&#x53C2;&#x8003;">&#x53C2;&#x8003;</h2>
<ul>
2018-02-06 11:33:27 +08:00
<li><a href="https://github.com/coreos/flannel" target="_blank">coreos/flannel - github.com</a></li>
2018-02-05 22:14:09 +08:00
<li><a href="http://cizixs.com/2017/02/10/network-virtualization-network-namespace" target="_blank">linux &#x7F51;&#x7EDC;&#x865A;&#x62DF;&#x5316;&#xFF1A; network namespace &#x7B80;&#x4ECB;</a></li>
<li><a href="https://segmentfault.com/a/1190000009251098" target="_blank">Linux&#x865A;&#x62DF;&#x7F51;&#x7EDC;&#x8BBE;&#x5907;&#x4E4B;veth</a></li>
<li><a href="https://www.cnyunwei.cc/archives/393" target="_blank">iptables &#x89C4;&#x5219;</a></li>
2018-02-06 11:33:27 +08:00
<li><a href="http://hustcat.github.io/flannel-host-gw-network/" target="_blank">flannel host-gw network</a></li>
2018-02-15 11:03:50 +08:00
<li><a href="https://docs.openshift.com/container-platform/3.4/architecture/additional_concepts/flannel.html" target="_blank">flannel - openshift.com</a></li>
2018-02-05 22:14:09 +08:00
</ul>
2018-02-06 14:16:27 +08:00
<footer class="page-footer"><span class="copyright">Copyright &#xA9; jimmysong.io 2017-2018 all right reserved&#xFF0C;powered by Gitbook</span><span class="footer-modification">Updated at
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