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<!DOCTYPE HTML>
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<meta charset="UTF-8">
<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
<title>Pod解析 · Kubernetes Handbook - jimmysong.io</title>
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<nav role="navigation">
<ul class="summary">
<li>
<a href="https://jimmysong.io" target="_blank" class="custom-link">Jimmy Song</a>
</li>
<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
</a>
</li>
<li class="chapter " data-level="1.2" data-path="../cloud-native/kubernetes-and-cloud-native-app-overview.html">
<a href="../cloud-native/kubernetes-and-cloud-native-app-overview.html">
<b>1.2.</b>
Kubernetes与云原生应用概览
</a>
</li>
<li class="header">概念与原理</li>
<li class="chapter " data-level="2.1" data-path="./">
<a href="./">
<b>2.1.</b>
Kubernetes架构
</a>
</li>
<li class="chapter " data-level="2.2" data-path="concepts.html">
<a href="concepts.html">
<b>2.2.</b>
设计理念
</a>
</li>
<li class="chapter " data-level="2.3" data-path="objects.html">
<a href="objects.html">
<b>2.3.</b>
资源对象与基本概念解析
</a>
<ul class="articles">
<li class="chapter " data-level="2.3.1" data-path="pod-overview.html">
<a href="pod-overview.html">
<b>2.3.1.</b>
Pod
</a>
<ul class="articles">
<li class="chapter active" data-level="2.3.1.1" data-path="pod.html">
<a href="pod.html">
<b>2.3.1.1.</b>
Pod解析
</a>
</li>
<li class="chapter " data-level="2.3.1.2" data-path="init-containers.html">
<a href="init-containers.html">
<b>2.3.1.2.</b>
Init容器
</a>
</li>
<li class="chapter " data-level="2.3.1.3" data-path="pod-security-policy.html">
<a href="pod-security-policy.html">
<b>2.3.1.3.</b>
Pod安全策略
</a>
</li>
<li class="chapter " data-level="2.3.1.4" data-path="pod-lifecycle.html">
<a href="pod-lifecycle.html">
<b>2.3.1.4.</b>
Pod的生命周期
</a>
</li>
<li class="chapter " data-level="2.3.1.5" data-path="pod-hook.html">
<a href="pod-hook.html">
<b>2.3.1.5.</b>
Pod hook
</a>
</li>
<li class="chapter " data-level="2.3.1.6" data-path="pod-preset.html">
<a href="pod-preset.html">
<b>2.3.1.6.</b>
Pod Preset
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="2.3.2" data-path="node.html">
<a href="node.html">
<b>2.3.2.</b>
Node
</a>
</li>
<li class="chapter " data-level="2.3.3" data-path="namespace.html">
<a href="namespace.html">
<b>2.3.3.</b>
Namespace
</a>
</li>
<li class="chapter " data-level="2.3.4" data-path="service.html">
<a href="service.html">
<b>2.3.4.</b>
Service
</a>
</li>
<li class="chapter " data-level="2.3.5" data-path="volume.html">
<a href="volume.html">
<b>2.3.5.</b>
Volume和Persistent Volume
</a>
</li>
<li class="chapter " data-level="2.3.6" data-path="deployment.html">
<a href="deployment.html">
<b>2.3.6.</b>
Deployment
</a>
</li>
<li class="chapter " data-level="2.3.7" data-path="secret.html">
<a href="secret.html">
<b>2.3.7.</b>
Secret
</a>
</li>
<li class="chapter " data-level="2.3.8" data-path="statefulset.html">
<a href="statefulset.html">
<b>2.3.8.</b>
StatefulSet
</a>
</li>
<li class="chapter " data-level="2.3.9" data-path="daemonset.html">
<a href="daemonset.html">
<b>2.3.9.</b>
DaemonSet
</a>
</li>
<li class="chapter " data-level="2.3.10" data-path="serviceaccount.html">
<a href="serviceaccount.html">
<b>2.3.10.</b>
ServiceAccount
</a>
</li>
<li class="chapter " data-level="2.3.11" data-path="replicaset.html">
<a href="replicaset.html">
<b>2.3.11.</b>
ReplicationController和ReplicaSet
</a>
</li>
<li class="chapter " data-level="2.3.12" data-path="job.html">
<a href="job.html">
<b>2.3.12.</b>
Job
</a>
</li>
<li class="chapter " data-level="2.3.13" data-path="cronjob.html">
<a href="cronjob.html">
<b>2.3.13.</b>
CronJob
</a>
</li>
<li class="chapter " data-level="2.3.14" data-path="ingress.html">
<a href="ingress.html">
<b>2.3.14.</b>
Ingress
</a>
<ul class="articles">
<li class="chapter " data-level="2.3.14.1" data-path="traefik-ingress-controller.html">
<a href="traefik-ingress-controller.html">
<b>2.3.14.1.</b>
Traefik Ingress Controller
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="2.3.15" data-path="configmap.html">
<a href="configmap.html">
<b>2.3.15.</b>
ConfigMap
</a>
<ul class="articles">
<li class="chapter " data-level="2.3.15.1" data-path="configmap-hot-update.html">
<a href="configmap-hot-update.html">
<b>2.3.15.1.</b>
ConfigMap的热更新
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="2.3.16" data-path="horizontal-pod-autoscaling.html">
<a href="horizontal-pod-autoscaling.html">
<b>2.3.16.</b>
Horizontal Pod Autoscaling
</a>
<ul class="articles">
<li class="chapter " data-level="2.3.16.1" data-path="custom-metrics-hpa.html">
<a href="custom-metrics-hpa.html">
<b>2.3.16.1.</b>
自定义指标HPA
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="2.3.17" data-path="label.html">
<a href="label.html">
<b>2.3.17.</b>
Label
</a>
</li>
<li class="chapter " data-level="2.3.18" data-path="garbage-collection.html">
<a href="garbage-collection.html">
<b>2.3.18.</b>
垃圾收集
</a>
</li>
<li class="chapter " data-level="2.3.19" data-path="network-policy.html">
<a href="network-policy.html">
<b>2.3.19.</b>
NetworkPolicy
</a>
</li>
<li class="chapter " data-level="2.3.20" data-path="annotation.html">
<a href="annotation.html">
<b>2.3.20.</b>
Annotation
</a>
</li>
<li class="chapter " data-level="2.3.21" data-path="aggregated-api-server.html">
<a href="aggregated-api-server.html">
<b>2.3.21.</b>
Aggregated API Server
</a>
</li>
<li class="chapter " data-level="2.3.22" data-path="custom-resource.html">
<a href="custom-resource.html">
<b>2.3.22.</b>
使用自定义资源扩展API
</a>
</li>
<li class="chapter " data-level="2.3.23" data-path="apiservice.html">
<a href="apiservice.html">
<b>2.3.23.</b>
APIService
</a>
</li>
</ul>
</li>
<li class="header">用户指南</li>
<li class="chapter " data-level="3.1" data-path="../guide/">
<a href="../guide/">
<b>3.1.</b>
用户指南
</a>
</li>
<li class="chapter " data-level="3.2" data-path="../guide/resource-configuration.html">
<a href="../guide/resource-configuration.html">
<b>3.2.</b>
资源对象配置
</a>
<ul class="articles">
<li class="chapter " data-level="3.2.1" data-path="../guide/configure-liveness-readiness-probes.html">
<a href="../guide/configure-liveness-readiness-probes.html">
<b>3.2.1.</b>
配置Pod的liveness和readiness探针
</a>
</li>
<li class="chapter " data-level="3.2.2" data-path="../guide/configure-pod-service-account.html">
<a href="../guide/configure-pod-service-account.html">
<b>3.2.2.</b>
配置Pod的Service Account
</a>
</li>
<li class="chapter " data-level="3.2.3" data-path="../guide/secret-configuration.html">
<a href="../guide/secret-configuration.html">
<b>3.2.3.</b>
Secret配置
</a>
</li>
<li class="chapter " data-level="3.2.4" data-path="../guide/resource-quota-management.html">
<a href="../guide/resource-quota-management.html">
<b>3.2.4.</b>
管理namespace中的资源配额
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="3.3" data-path="../guide/command-usage.html">
<a href="../guide/command-usage.html">
<b>3.3.</b>
命令使用
</a>
<ul class="articles">
<li class="chapter " data-level="3.3.1" data-path="../guide/docker-cli-to-kubectl.html">
<a href="../guide/docker-cli-to-kubectl.html">
<b>3.3.1.</b>
docker用户过度到kubectl命令行指南
</a>
</li>
<li class="chapter " data-level="3.3.2" data-path="../guide/using-kubectl.html">
<a href="../guide/using-kubectl.html">
<b>3.3.2.</b>
kubectl命令概览
</a>
</li>
<li class="chapter " data-level="3.3.3" data-path="../guide/kubectl-cheatsheet.html">
<a href="../guide/kubectl-cheatsheet.html">
<b>3.3.3.</b>
kubectl命令技巧大全
</a>
</li>
<li class="chapter " data-level="3.3.4" data-path="../guide/using-etcdctl-to-access-kubernetes-data.html">
<a href="../guide/using-etcdctl-to-access-kubernetes-data.html">
<b>3.3.4.</b>
使用etcdctl访问kuberentes数据
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="3.4" data-path="../guide/cluster-security-management.html">
<a href="../guide/cluster-security-management.html">
<b>3.4.</b>
集群安全性管理
</a>
<ul class="articles">
<li class="chapter " data-level="3.4.1" data-path="../guide/managing-tls-in-a-cluster.html">
<a href="../guide/managing-tls-in-a-cluster.html">
<b>3.4.1.</b>
管理集群中的TLS
</a>
</li>
<li class="chapter " data-level="3.4.2" data-path="../guide/kubelet-authentication-authorization.html">
<a href="../guide/kubelet-authentication-authorization.html">
<b>3.4.2.</b>
kubelet的认证授权
</a>
</li>
<li class="chapter " data-level="3.4.3" data-path="../guide/tls-bootstrapping.html">
<a href="../guide/tls-bootstrapping.html">
<b>3.4.3.</b>
TLS bootstrap
</a>
</li>
<li class="chapter " data-level="3.4.4" data-path="../guide/kubectl-user-authentication-authorization.html">
<a href="../guide/kubectl-user-authentication-authorization.html">
<b>3.4.4.</b>
创建用户认证授权的kubeconfig文件
</a>
</li>
<li class="chapter " data-level="3.4.5" data-path="../guide/rbac.html">
<a href="../guide/rbac.html">
<b>3.4.5.</b>
RBAC——基于角色的访问控制
</a>
</li>
<li class="chapter " data-level="3.4.6" data-path="../guide/ip-masq-agent.html">
<a href="../guide/ip-masq-agent.html">
<b>3.4.6.</b>
IP伪装代理
</a>
</li>
<li class="chapter " data-level="3.4.7" data-path="../guide/auth-with-kubeconfig-or-token.html">
<a href="../guide/auth-with-kubeconfig-or-token.html">
<b>3.4.7.</b>
使用kubeconfig或token进行用户身份认证
</a>
</li>
<li class="chapter " data-level="3.4.8" data-path="../guide/authentication.html">
<a href="../guide/authentication.html">
<b>3.4.8.</b>
kubernetes中的用户与身份认证授权
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="3.5" data-path="../guide/access-kubernetes-cluster.html">
<a href="../guide/access-kubernetes-cluster.html">
<b>3.5.</b>
访问Kubernetes集群
</a>
<ul class="articles">
<li class="chapter " data-level="3.5.1" data-path="../guide/access-cluster.html">
<a href="../guide/access-cluster.html">
<b>3.5.1.</b>
访问集群
</a>
</li>
<li class="chapter " data-level="3.5.2" data-path="../guide/authenticate-across-clusters-kubeconfig.html">
<a href="../guide/authenticate-across-clusters-kubeconfig.html">
<b>3.5.2.</b>
使用kubeconfig文件配置跨集群认证
</a>
</li>
<li class="chapter " data-level="3.5.3" data-path="../guide/connecting-to-applications-port-forward.html">
<a href="../guide/connecting-to-applications-port-forward.html">
<b>3.5.3.</b>
通过端口转发访问集群中的应用程序
</a>
</li>
<li class="chapter " data-level="3.5.4" data-path="../guide/service-access-application-cluster.html">
<a href="../guide/service-access-application-cluster.html">
<b>3.5.4.</b>
使用service访问群集中的应用程序
</a>
</li>
<li class="chapter " data-level="3.5.5" 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>3.5.5.</b>
从外部访问Kubernetes中的Pod
</a>
</li>
<li class="chapter " data-level="3.5.6" data-path="../guide/carbin-mobile-dashboard-for-kubernetes.html">
<a href="../guide/carbin-mobile-dashboard-for-kubernetes.html">
<b>3.5.6.</b>
Carbin - Kuberentes手机客户端
</a>
</li>
<li class="chapter " data-level="3.5.7" data-path="../guide/kubernetes-desktop-client.html">
<a href="../guide/kubernetes-desktop-client.html">
<b>3.5.7.</b>
Kubernetic - Kubernetes桌面客户端
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="3.6" data-path="../guide/application-development-deployment-flow.html">
<a href="../guide/application-development-deployment-flow.html">
<b>3.6.</b>
在kubernetes中开发部署应用
</a>
<ul class="articles">
<li class="chapter " data-level="3.6.1" data-path="../guide/deploy-applications-in-kubernetes.html">
<a href="../guide/deploy-applications-in-kubernetes.html">
<b>3.6.1.</b>
适用于kubernetes的应用开发部署流程
</a>
</li>
<li class="chapter " data-level="3.6.2" data-path="../guide/migrating-hadoop-yarn-to-kubernetes.html">
<a href="../guide/migrating-hadoop-yarn-to-kubernetes.html">
<b>3.6.2.</b>
迁移传统应用到kubernetes中——以Hadoop YARN为例
</a>
</li>
<li class="chapter " data-level="3.6.3" data-path="../guide/using-statefulset.html">
<a href="../guide/using-statefulset.html">
<b>3.6.3.</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="4.1" data-path="../practice/">
<a href="../practice/">
<b>4.1.</b>
最佳实践概览
</a>
</li>
<li class="chapter " data-level="4.2" data-path="../practice/install-kbernetes1.6-on-centos.html">
<a href="../practice/install-kbernetes1.6-on-centos.html">
<b>4.2.</b>
在CentOS上部署kubernetes1.6集群
</a>
<ul class="articles">
<li class="chapter " data-level="4.2.1" data-path="../practice/create-tls-and-secret-key.html">
<a href="../practice/create-tls-and-secret-key.html">
<b>4.2.1.</b>
创建TLS证书和秘钥
</a>
</li>
<li class="chapter " data-level="4.2.2" data-path="../practice/create-kubeconfig.html">
<a href="../practice/create-kubeconfig.html">
<b>4.2.2.</b>
创建kubeconfig文件
</a>
</li>
<li class="chapter " data-level="4.2.3" data-path="../practice/etcd-cluster-installation.html">
<a href="../practice/etcd-cluster-installation.html">
<b>4.2.3.</b>
创建高可用etcd集群
</a>
</li>
<li class="chapter " data-level="4.2.4" data-path="../practice/kubectl-installation.html">
<a href="../practice/kubectl-installation.html">
<b>4.2.4.</b>
安装kubectl命令行工具
</a>
</li>
<li class="chapter " data-level="4.2.5" data-path="../practice/master-installation.html">
<a href="../practice/master-installation.html">
<b>4.2.5.</b>
部署master节点
</a>
</li>
<li class="chapter " data-level="4.2.6" data-path="../practice/node-installation.html">
<a href="../practice/node-installation.html">
<b>4.2.6.</b>
部署node节点
</a>
</li>
<li class="chapter " data-level="4.2.7" data-path="../practice/kubedns-addon-installation.html">
<a href="../practice/kubedns-addon-installation.html">
<b>4.2.7.</b>
安装kubedns插件
</a>
</li>
<li class="chapter " data-level="4.2.8" data-path="../practice/dashboard-addon-installation.html">
<a href="../practice/dashboard-addon-installation.html">
<b>4.2.8.</b>
安装dashboard插件
</a>
</li>
<li class="chapter " data-level="4.2.9" data-path="../practice/heapster-addon-installation.html">
<a href="../practice/heapster-addon-installation.html">
<b>4.2.9.</b>
安装heapster插件
</a>
</li>
<li class="chapter " data-level="4.2.10" data-path="../practice/efk-addon-installation.html">
<a href="../practice/efk-addon-installation.html">
<b>4.2.10.</b>
安装EFK插件
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="4.3" data-path="../practice/service-discovery-and-loadbalancing.html">
<a href="../practice/service-discovery-and-loadbalancing.html">
<b>4.3.</b>
服务发现与负载均衡
</a>
<ul class="articles">
<li class="chapter " data-level="4.3.1" data-path="../practice/traefik-ingress-installation.html">
<a href="../practice/traefik-ingress-installation.html">
<b>4.3.1.</b>
安装Traefik ingress
</a>
</li>
<li class="chapter " data-level="4.3.2" data-path="../practice/distributed-load-test.html">
<a href="../practice/distributed-load-test.html">
<b>4.3.2.</b>
分布式负载测试
</a>
</li>
<li class="chapter " data-level="4.3.3" data-path="../practice/network-and-cluster-perfermance-test.html">
<a href="../practice/network-and-cluster-perfermance-test.html">
<b>4.3.3.</b>
网络和集群性能测试
</a>
</li>
<li class="chapter " data-level="4.3.4" data-path="../practice/edge-node-configuration.html">
<a href="../practice/edge-node-configuration.html">
<b>4.3.4.</b>
边缘节点配置
</a>
</li>
<li class="chapter " data-level="4.3.5" data-path="../practice/nginx-ingress-installation.html">
<a href="../practice/nginx-ingress-installation.html">
<b>4.3.5.</b>
安装Nginx ingress
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="4.4" data-path="../practice/operation.html">
<a href="../practice/operation.html">
<b>4.4.</b>
运维管理
</a>
<ul class="articles">
<li class="chapter " data-level="4.4.1" data-path="../practice/service-rolling-update.html">
<a href="../practice/service-rolling-update.html">
<b>4.4.1.</b>
服务滚动升级
</a>
</li>
<li class="chapter " data-level="4.4.2" data-path="../practice/app-log-collection.html">
<a href="../practice/app-log-collection.html">
<b>4.4.2.</b>
应用日志收集
</a>
</li>
<li class="chapter " data-level="4.4.3" data-path="../practice/configuration-best-practice.html">
<a href="../practice/configuration-best-practice.html">
<b>4.4.3.</b>
配置最佳实践
</a>
</li>
<li class="chapter " data-level="4.4.4" data-path="../practice/monitor.html">
<a href="../practice/monitor.html">
<b>4.4.4.</b>
集群及应用监控
</a>
</li>
<li class="chapter " data-level="4.4.5" data-path="../practice/data-persistence-problem.html">
<a href="../practice/data-persistence-problem.html">
<b>4.4.5.</b>
数据持久化问题
</a>
</li>
<li class="chapter " data-level="4.4.6" data-path="../practice/manage-compute-resources-container.html">
<a href="../practice/manage-compute-resources-container.html">
<b>4.4.6.</b>
管理容器的计算资源
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="4.5" data-path="../practice/storage.html">
<a href="../practice/storage.html">
<b>4.5.</b>
存储管理
</a>
<ul class="articles">
<li class="chapter " data-level="4.5.1" data-path="../practice/glusterfs.html">
<a href="../practice/glusterfs.html">
<b>4.5.1.</b>
GlusterFS
</a>
<ul class="articles">
<li class="chapter " data-level="4.5.1.1" data-path="../practice/using-glusterfs-for-persistent-storage.html">
<a href="../practice/using-glusterfs-for-persistent-storage.html">
<b>4.5.1.1.</b>
使用GlusterFS做持久化存储
</a>
</li>
<li class="chapter " data-level="4.5.1.2" data-path="../practice/storage-for-containers-using-glusterfs-with-openshift.html">
<a href="../practice/storage-for-containers-using-glusterfs-with-openshift.html">
<b>4.5.1.2.</b>
在OpenShift中使用GlusterFS做持久化存储
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="4.5.2" data-path="../practice/cephfs.html">
<a href="../practice/cephfs.html">
<b>4.5.2.</b>
CephFS
</a>
<ul class="articles">
<li class="chapter " data-level="4.5.2.1" data-path="../practice/using-ceph-for-persistent-storage.html">
<a href="../practice/using-ceph-for-persistent-storage.html">
<b>4.5.2.1.</b>
使用Ceph做持久化存储
</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="chapter " data-level="4.6" data-path="../practice/monitoring.html">
<a href="../practice/monitoring.html">
<b>4.6.</b>
集群与应用监控
</a>
<ul class="articles">
<li class="chapter " data-level="4.6.1" data-path="../practice/heapster.html">
<a href="../practice/heapster.html">
<b>4.6.1.</b>
Heapster
</a>
<ul class="articles">
<li class="chapter " data-level="4.6.1.1" data-path="../practice/using-heapster-to-get-object-metrics.html">
<a href="../practice/using-heapster-to-get-object-metrics.html">
<b>4.6.1.1.</b>
使用Heapster获取集群和对象的metric数据
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="4.6.2" data-path="../practice/prometheus.html">
<a href="../practice/prometheus.html">
<b>4.6.2.</b>
Prometheus
</a>
<ul class="articles">
<li class="chapter " data-level="4.6.2.1" data-path="../practice/using-prometheus-to-monitor-kuberentes-cluster.html">
<a href="../practice/using-prometheus-to-monitor-kuberentes-cluster.html">
<b>4.6.2.1.</b>
使用Prometheus监控kubernetes集群
</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="chapter " data-level="4.7" data-path="../practice/services-management-tool.html">
<a href="../practice/services-management-tool.html">
<b>4.7.</b>
服务编排管理
</a>
<ul class="articles">
<li class="chapter " data-level="4.7.1" data-path="../practice/helm.html">
<a href="../practice/helm.html">
<b>4.7.1.</b>
使用Helm管理kubernetes应用
</a>
</li>
<li class="chapter " data-level="4.7.2" data-path="../practice/create-private-charts-repo.html">
<a href="../practice/create-private-charts-repo.html">
<b>4.7.2.</b>
构建私有Chart仓库
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="4.8" data-path="../practice/ci-cd.html">
<a href="../practice/ci-cd.html">
<b>4.8.</b>
持续集成与发布
</a>
<ul class="articles">
<li class="chapter " data-level="4.8.1" data-path="../practice/jenkins-ci-cd.html">
<a href="../practice/jenkins-ci-cd.html">
<b>4.8.1.</b>
使用Jenkins进行持续集成与发布
</a>
</li>
<li class="chapter " data-level="4.8.2" data-path="../practice/drone-ci-cd.html">
<a href="../practice/drone-ci-cd.html">
<b>4.8.2.</b>
使用Drone进行持续集成与发布
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="4.9" data-path="../practice/update-and-upgrade.html">
<a href="../practice/update-and-upgrade.html">
<b>4.9.</b>
更新与升级
</a>
<ul class="articles">
<li class="chapter " data-level="4.9.1" data-path="../practice/manually-upgrade.html">
<a href="../practice/manually-upgrade.html">
<b>4.9.1.</b>
手动升级kubernetes集群
</a>
</li>
<li class="chapter " data-level="4.9.2" data-path="../practice/dashboard-upgrade.html">
<a href="../practice/dashboard-upgrade.html">
<b>4.9.2.</b>
升级dashboard
</a>
</li>
</ul>
</li>
<li class="header">领域应用</li>
<li class="chapter " data-level="5.1" data-path="../usecases/">
<a href="../usecases/">
<b>5.1.</b>
领域应用概览
</a>
</li>
<li class="chapter " data-level="5.2" data-path="../usecases/microservices.html">
<a href="../usecases/microservices.html">
<b>5.2.</b>
微服务架构
</a>
<ul class="articles">
<li class="chapter " data-level="5.2.1" data-path="../usecases/service-discovery-in-microservices.html">
<a href="../usecases/service-discovery-in-microservices.html">
<b>5.2.1.</b>
微服务中的服务发现
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="5.3" data-path="../usecases/service-mesh.html">
<a href="../usecases/service-mesh.html">
<b>5.3.</b>
Service Mesh 服务网格
</a>
<ul class="articles">
<li class="chapter " data-level="5.3.1" data-path="../usecases/istio.html">
<a href="../usecases/istio.html">
<b>5.3.1.</b>
Istio
</a>
<ul class="articles">
<li class="chapter " data-level="5.3.1.1" data-path="../usecases/istio-installation.html">
<a href="../usecases/istio-installation.html">
<b>5.3.1.1.</b>
安装并试用Istio service mesh
</a>
</li>
<li class="chapter " data-level="5.3.1.2" data-path="../usecases/configuring-request-routing.html">
<a href="../usecases/configuring-request-routing.html">
<b>5.3.1.2.</b>
配置请求的路由规则
</a>
</li>
<li class="chapter " data-level="5.3.1.3" data-path="../usecases/install-and-expand-istio-mesh.html">
<a href="../usecases/install-and-expand-istio-mesh.html">
<b>5.3.1.3.</b>
安装和拓展Istio service mesh
</a>
</li>
<li class="chapter " data-level="5.3.1.4" data-path="../usecases/integrating-vms.html">
<a href="../usecases/integrating-vms.html">
<b>5.3.1.4.</b>
集成虚拟机
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="5.3.2" data-path="../usecases/linkerd.html">
<a href="../usecases/linkerd.html">
<b>5.3.2.</b>
Linkerd
</a>
<ul class="articles">
<li class="chapter " data-level="5.3.2.1" data-path="../usecases/linkerd-user-guide.html">
<a href="../usecases/linkerd-user-guide.html">
<b>5.3.2.1.</b>
Linkerd 使用指南
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="5.3.3" data-path="../usecases/conduit.html">
<a href="../usecases/conduit.html">
<b>5.3.3.</b>
Conduit
</a>
<ul class="articles">
<li class="chapter " data-level="5.3.3.1" data-path="../usecases/conduit-overview.html">
<a href="../usecases/conduit-overview.html">
<b>5.3.3.1.</b>
Condiut概览
</a>
</li>
<li class="chapter " data-level="5.3.3.2" data-path="../usecases/conduit-installation.html">
<a href="../usecases/conduit-installation.html">
<b>5.3.3.2.</b>
安装Conduit
</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="chapter " data-level="5.4" data-path="../usecases/big-data.html">
<a href="../usecases/big-data.html">
<b>5.4.</b>
大数据
</a>
<ul class="articles">
<li class="chapter " data-level="5.4.1" data-path="../usecases/spark-standalone-on-kubernetes.html">
<a href="../usecases/spark-standalone-on-kubernetes.html">
<b>5.4.1.</b>
Spark standalone on Kubernetes
</a>
</li>
<li class="chapter " data-level="5.4.2" data-path="../usecases/running-spark-with-kubernetes-native-scheduler.html">
<a href="../usecases/running-spark-with-kubernetes-native-scheduler.html">
<b>5.4.2.</b>
运行支持kubernetes原生调度的Spark程序
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="5.5" data-path="../usecases/serverless.html">
<a href="../usecases/serverless.html">
<b>5.5.</b>
Serverless架构
</a>
<ul class="articles">
<li class="chapter " data-level="5.5.1" data-path="../usecases/understanding-serverless.html">
<a href="../usecases/understanding-serverless.html">
<b>5.5.1.</b>
理解Serverless
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="5.6" data-path="../usecases/edge-computing.html">
<a href="../usecases/edge-computing.html">
<b>5.6.</b>
边缘计算
</a>
</li>
<li class="header">开发指南</li>
<li class="chapter " data-level="6.1" data-path="../develop/">
<a href="../develop/">
<b>6.1.</b>
开发指南概览
</a>
</li>
<li class="chapter " data-level="6.2" data-path="../develop/sigs-and-working-group.html">
<a href="../develop/sigs-and-working-group.html">
<b>6.2.</b>
SIG和工作组
</a>
</li>
<li class="chapter " data-level="6.3" data-path="../develop/developing-environment.html">
<a href="../develop/developing-environment.html">
<b>6.3.</b>
开发环境搭建
</a>
</li>
<li class="chapter " data-level="6.4" data-path="../develop/testing.html">
<a href="../develop/testing.html">
<b>6.4.</b>
单元测试和集成测试
</a>
</li>
<li class="chapter " data-level="6.5" data-path="../develop/client-go-sample.html">
<a href="../develop/client-go-sample.html">
<b>6.5.</b>
client-go示例
</a>
</li>
<li class="chapter " data-level="6.6" data-path="../develop/contribute.html">
<a href="../develop/contribute.html">
<b>6.6.</b>
社区贡献
</a>
</li>
<li class="chapter " data-level="6.7" data-path="../develop/minikube.html">
<a href="../develop/minikube.html">
<b>6.7.</b>
Minikube
</a>
</li>
<li class="header">附录</li>
<li class="chapter " data-level="7.1" data-path="../appendix/">
<a href="../appendix/">
<b>7.1.</b>
附录说明
</a>
</li>
<li class="chapter " data-level="7.2" data-path="../appendix/debug-kubernetes-services.html">
<a href="../appendix/debug-kubernetes-services.html">
<b>7.2.</b>
Kubernetes中的应用故障排查
</a>
</li>
<li class="chapter " data-level="7.3" data-path="../appendix/material-share.html">
<a href="../appendix/material-share.html">
<b>7.3.</b>
Kubernetes相关资讯和情报链接
</a>
</li>
<li class="chapter " data-level="7.4" data-path="../appendix/docker-best-practice.html">
<a href="../appendix/docker-best-practice.html">
<b>7.4.</b>
Docker最佳实践
</a>
</li>
<li class="chapter " data-level="7.5" data-path="../appendix/tricks.html">
<a href="../appendix/tricks.html">
<b>7.5.</b>
使用技巧
</a>
</li>
<li class="chapter " data-level="7.6" data-path="../appendix/issues.html">
<a href="../appendix/issues.html">
<b>7.6.</b>
问题记录
</a>
</li>
<li class="chapter " data-level="7.7" data-path="../appendix/kubernetes-changelog.html">
<a href="../appendix/kubernetes-changelog.html">
<b>7.7.</b>
kubernetes版本更新日志
</a>
<ul class="articles">
<li class="chapter " data-level="7.7.1" data-path="../appendix/kubernetes-1.7-changelog.html">
<a href="../appendix/kubernetes-1.7-changelog.html">
<b>7.7.1.</b>
Kubernetes1.7更新日志
</a>
</li>
<li class="chapter " data-level="7.7.2" data-path="../appendix/kubernetes-1.8-changelog.html">
<a href="../appendix/kubernetes-1.8-changelog.html">
<b>7.7.2.</b>
Kubernetes1.8更新日志
</a>
</li>
</ul>
</li>
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本书使用 GitBook 发布
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<h1 id="pod&#x89E3;&#x6790;">Pod&#x89E3;&#x6790;</h1>
<p>Pod&#x662F;kubernetes&#x4E2D;&#x53EF;&#x4EE5;&#x521B;&#x5EFA;&#x7684;&#x6700;&#x5C0F;&#x90E8;&#x7F72;&#x5355;&#x5143;&#x3002;</p>
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<h2 id="&#x4EC0;&#x4E48;&#x662F;pod&#xFF1F;">&#x4EC0;&#x4E48;&#x662F;Pod&#xFF1F;</h2>
<p>Pod&#x5C31;&#x50CF;&#x662F;&#x8C4C;&#x8C46;&#x835A;&#x4E00;&#x6837;&#xFF0C;&#x5B83;&#x7531;&#x4E00;&#x4E2A;&#x6216;&#x8005;&#x591A;&#x4E2A;&#x5BB9;&#x5668;&#x7EC4;&#x6210;&#xFF08;&#x4F8B;&#x5982;Docker&#x5BB9;&#x5668;&#xFF09;&#xFF0C;&#x5B83;&#x4EEC;&#x5171;&#x4EAB;&#x5BB9;&#x5668;&#x5B58;&#x50A8;&#x3001;&#x7F51;&#x7EDC;&#x548C;&#x5BB9;&#x5668;&#x8FD0;&#x884C;&#x914D;&#x7F6E;&#x9879;&#x3002;Pod&#x4E2D;&#x7684;&#x5BB9;&#x5668;&#x603B;&#x662F;&#x88AB;&#x540C;&#x65F6;&#x8C03;&#x5EA6;&#xFF0C;&#x6709;&#x5171;&#x540C;&#x7684;&#x8FD0;&#x884C;&#x73AF;&#x5883;&#x3002;&#x4F60;&#x53EF;&#x4EE5;&#x628A;&#x5355;&#x4E2A;Pod&#x60F3;&#x8C61;&#x6210;&#x662F;&#x8FD0;&#x884C;&#x72EC;&#x7ACB;&#x5E94;&#x7528;&#x7684;&#x201C;&#x903B;&#x8F91;&#x4E3B;&#x673A;&#x201D;&#x2014;&#x2014;&#x5176;&#x4E2D;&#x8FD0;&#x884C;&#x7740;&#x4E00;&#x4E2A;&#x6216;&#x8005;&#x591A;&#x4E2A;&#x7D27;&#x5BC6;&#x8026;&#x5408;&#x7684;&#x5E94;&#x7528;&#x5BB9;&#x5668;&#x2014;&#x2014;&#x5728;&#x6709;&#x5BB9;&#x5668;&#x4E4B;&#x524D;&#xFF0C;&#x8FD9;&#x4E9B;&#x5E94;&#x7528;&#x90FD;&#x662F;&#x8FD0;&#x884C;&#x5728;&#x51E0;&#x4E2A;&#x76F8;&#x540C;&#x7684;&#x7269;&#x7406;&#x673A;&#x6216;&#x8005;&#x865A;&#x62DF;&#x673A;&#x4E0A;&#x3002;</p>
<p>&#x5C3D;&#x7BA1;kubernetes&#x652F;&#x6301;&#x591A;&#x79CD;&#x5BB9;&#x5668;&#x8FD0;&#x884C;&#x65F6;&#xFF0C;&#x4F46;&#x662F;Docker&#x4F9D;&#x7136;&#x662F;&#x6700;&#x5E38;&#x7528;&#x7684;&#x8FD0;&#x884C;&#x65F6;&#x73AF;&#x5883;&#xFF0C;&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x4F7F;&#x7528;Docker&#x7684;&#x672F;&#x8BED;&#x548C;&#x89C4;&#x5219;&#x6765;&#x5B9A;&#x4E49;Pod&#x3002;</p>
<p>Pod&#x4E2D;&#x5171;&#x4EAB;&#x7684;&#x73AF;&#x5883;&#x5305;&#x62EC;Linux&#x7684;namespace&#xFF0C;cgroup&#x548C;&#x5176;&#x4ED6;&#x53EF;&#x80FD;&#x7684;&#x9694;&#x7EDD;&#x73AF;&#x5883;&#xFF0C;&#x8FD9;&#x4E00;&#x70B9;&#x8DDF;Docker&#x5BB9;&#x5668;&#x4E00;&#x81F4;&#x3002;&#x5728;Pod&#x7684;&#x73AF;&#x5883;&#x4E2D;&#xFF0C;&#x6BCF;&#x4E2A;&#x5BB9;&#x5668;&#x4E2D;&#x53EF;&#x80FD;&#x8FD8;&#x6709;&#x66F4;&#x5C0F;&#x7684;&#x5B50;&#x9694;&#x79BB;&#x73AF;&#x5883;&#x3002;</p>
<p>Pod&#x4E2D;&#x7684;&#x5BB9;&#x5668;&#x5171;&#x4EAB;IP&#x5730;&#x5740;&#x548C;&#x7AEF;&#x53E3;&#x53F7;&#xFF0C;&#x5B83;&#x4EEC;&#x4E4B;&#x95F4;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;<code>localhost</code>&#x4E92;&#x76F8;&#x53D1;&#x73B0;&#x3002;&#x5B83;&#x4EEC;&#x4E4B;&#x95F4;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;&#x8FDB;&#x7A0B;&#x95F4;&#x901A;&#x4FE1;&#xFF0C;&#x4F8B;&#x5982;<a href="https://en.wikipedia.org/wiki/UNIX_System_V" target="_blank">SystemV</a>&#x4FE1;&#x53F7;&#x6216;&#x8005;POSIX&#x5171;&#x4EAB;&#x5185;&#x5B58;&#x3002;&#x4E0D;&#x540C;Pod&#x4E4B;&#x95F4;&#x7684;&#x5BB9;&#x5668;&#x5177;&#x6709;&#x4E0D;&#x540C;&#x7684;IP&#x5730;&#x5740;&#xFF0C;&#x4E0D;&#x80FD;&#x76F4;&#x63A5;&#x901A;&#x8FC7;IPC&#x901A;&#x4FE1;&#x3002;</p>
<p>Pod&#x4E2D;&#x7684;&#x5BB9;&#x5668;&#x4E5F;&#x6709;&#x8BBF;&#x95EE;&#x5171;&#x4EAB;volume&#x7684;&#x6743;&#x9650;&#xFF0C;&#x8FD9;&#x4E9B;volume&#x4F1A;&#x88AB;&#x5B9A;&#x4E49;&#x6210;pod&#x7684;&#x4E00;&#x90E8;&#x5206;&#x5E76;&#x6302;&#x8F7D;&#x5230;&#x5E94;&#x7528;&#x5BB9;&#x5668;&#x7684;&#x6587;&#x4EF6;&#x7CFB;&#x7EDF;&#x4E2D;&#x3002;</p>
<p>&#x6839;&#x636E;Docker&#x7684;&#x7ED3;&#x6784;&#xFF0C;Pod&#x4E2D;&#x7684;&#x5BB9;&#x5668;&#x5171;&#x4EAB;namespace&#x548C;volume&#xFF0C;&#x4E0D;&#x652F;&#x6301;&#x5171;&#x4EAB;PID&#x7684;namespace&#x3002;</p>
<p>&#x5C31;&#x50CF;&#x6BCF;&#x4E2A;&#x5E94;&#x7528;&#x5BB9;&#x5668;&#xFF0C;pod&#x88AB;&#x8BA4;&#x4E3A;&#x662F;&#x4E34;&#x65F6;&#xFF08;&#x975E;&#x6301;&#x4E45;&#x7684;&#xFF09;&#x5B9E;&#x4F53;&#x3002;&#x5728;Pod&#x7684;&#x751F;&#x547D;&#x5468;&#x671F;&#x4E2D;&#x8BA8;&#x8BBA;&#x8FC7;&#xFF0C;pod&#x88AB;&#x521B;&#x5EFA;&#x540E;&#xFF0C;&#x88AB;&#x5206;&#x914D;&#x4E00;&#x4E2A;&#x552F;&#x4E00;&#x7684;ID&#xFF08;UID&#xFF09;&#xFF0C;&#x8C03;&#x5EA6;&#x5230;&#x8282;&#x70B9;&#x4E0A;&#xFF0C;&#x5E76;&#x4E00;&#x81F4;&#x7EF4;&#x6301;&#x671F;&#x671B;&#x7684;&#x72B6;&#x6001;&#x76F4;&#x5230;&#x88AB;&#x7EC8;&#x7ED3;&#xFF08;&#x6839;&#x636E;&#x91CD;&#x542F;&#x7B56;&#x7565;&#xFF09;&#x6216;&#x8005;&#x88AB;&#x5220;&#x9664;&#x3002;&#x5982;&#x679C;node&#x6B7B;&#x6389;&#x4E86;&#xFF0C;&#x5206;&#x914D;&#x5230;&#x4E86;&#x8FD9;&#x4E2A;node&#x4E0A;&#x7684;pod&#xFF0C;&#x5728;&#x7ECF;&#x8FC7;&#x4E00;&#x4E2A;&#x8D85;&#x65F6;&#x65F6;&#x95F4;&#x540E;&#x4F1A;&#x88AB;&#x91CD;&#x65B0;&#x8C03;&#x5EA6;&#x5230;&#x5176;&#x4ED6;node&#x8282;&#x70B9;&#x4E0A;&#x3002;&#x4E00;&#x4E2A;&#x7ED9;&#x5B9A;&#x7684;pod&#xFF08;&#x5982;UID&#x5B9A;&#x4E49;&#x7684;&#xFF09;&#x4E0D;&#x4F1A;&#x88AB;&#x201C;&#x91CD;&#x65B0;&#x8C03;&#x5EA6;&#x201D;&#x5230;&#x65B0;&#x7684;&#x8282;&#x70B9;&#x4E0A;&#xFF0C;&#x800C;&#x662F;&#x88AB;&#x4E00;&#x4E2A;&#x540C;&#x6837;&#x7684;pod&#x53D6;&#x4EE3;&#xFF0C;&#x5982;&#x679C;&#x671F;&#x671B;&#x7684;&#x8BDD;&#x751A;&#x81F3;&#x53EF;&#x4EE5;&#x662F;&#x76F8;&#x540C;&#x7684;&#x540D;&#x5B57;&#xFF0C;&#x4F46;&#x662F;&#x4F1A;&#x6709;&#x4E00;&#x4E2A;&#x65B0;&#x7684;UID&#xFF08;&#x67E5;&#x770B;replication controller&#x83B7;&#x53D6;&#x8BE6;&#x60C5;&#xFF09;&#x3002;&#xFF08;&#x672A;&#x6765;&#xFF0C;&#x4E00;&#x4E2A;&#x66F4;&#x9AD8;&#x7EA7;&#x522B;&#x7684;API&#x5C06;&#x652F;&#x6301;pod&#x8FC1;&#x79FB;&#xFF09;&#x3002;</p>
<p>Volume&#x8DDF;pod&#x6709;&#x76F8;&#x540C;&#x7684;&#x751F;&#x547D;&#x5468;&#x671F;&#xFF08;&#x5F53;&#x5176;UID&#x5B58;&#x5728;&#x7684;&#x65F6;&#x5019;&#xFF09;&#x3002;&#x5F53;Pod&#x56E0;&#x4E3A;&#x67D0;&#x79CD;&#x539F;&#x56E0;&#x88AB;&#x5220;&#x9664;&#x6216;&#x8005;&#x88AB;&#x65B0;&#x521B;&#x5EFA;&#x7684;&#x76F8;&#x540C;&#x7684;Pod&#x53D6;&#x4EE3;&#xFF0C;&#x5B83;&#x76F8;&#x5173;&#x7684;&#x4E1C;&#x897F;&#xFF08;&#x4F8B;&#x5982;volume&#xFF09;&#x4E5F;&#x4F1A;&#x88AB;&#x9500;&#x6BC1;&#x548C;&#x518D;&#x521B;&#x5EFA;&#x4E00;&#x4E2A;&#x65B0;&#x7684;volume&#x3002;</p>
<figure id="fig2.3.1.1.1"><img src="../images/pod-overview.png" alt="Pod&#x793A;&#x610F;&#x56FE;"><figcaption>&#x56FE;&#x7247; - Pod&#x793A;&#x610F;&#x56FE;</figcaption></figure>
<p><em>A multi-container pod that contains a file puller and a web server that uses a persistent volume for shared storage between the containers.</em></p>
<h2 id="pod&#x7684;&#x52A8;&#x673A;">Pod&#x7684;&#x52A8;&#x673A;</h2>
<h3 id="&#x7BA1;&#x7406;">&#x7BA1;&#x7406;</h3>
<p>Pod&#x662F;&#x4E00;&#x4E2A;&#x670D;&#x52A1;&#x7684;&#x591A;&#x4E2A;&#x8FDB;&#x7A0B;&#x7684;&#x805A;&#x5408;&#x5355;&#x4F4D;&#xFF0C;pod&#x63D0;&#x4F9B;&#x8FD9;&#x79CD;&#x6A21;&#x578B;&#x80FD;&#x591F;&#x7B80;&#x5316;&#x5E94;&#x7528;&#x90E8;&#x7F72;&#x7BA1;&#x7406;&#xFF0C;&#x901A;&#x8FC7;&#x63D0;&#x4F9B;&#x4E00;&#x4E2A;&#x66F4;&#x9AD8;&#x7EA7;&#x522B;&#x7684;&#x62BD;&#x8C61;&#x7684;&#x65B9;&#x5F0F;&#x3002;Pod&#x4F5C;&#x4E3A;&#x4E00;&#x4E2A;&#x72EC;&#x7ACB;&#x7684;&#x90E8;&#x7F72;&#x5355;&#x4F4D;&#xFF0C;&#x652F;&#x6301;&#x6A2A;&#x5411;&#x6269;&#x5C55;&#x548C;&#x590D;&#x5236;&#x3002;&#x5171;&#x751F;&#xFF08;&#x534F;&#x540C;&#x8C03;&#x5EA6;&#xFF09;&#xFF0C;&#x547D;&#x8FD0;&#x5171;&#x540C;&#x4F53;&#xFF08;&#x4F8B;&#x5982;&#x88AB;&#x7EC8;&#x7ED3;&#xFF09;&#xFF0C;&#x534F;&#x540C;&#x590D;&#x5236;&#xFF0C;&#x8D44;&#x6E90;&#x5171;&#x4EAB;&#xFF0C;&#x4F9D;&#x8D56;&#x7BA1;&#x7406;&#xFF0C;Pod&#x90FD;&#x4F1A;&#x81EA;&#x52A8;&#x7684;&#x4E3A;&#x5BB9;&#x5668;&#x5904;&#x7406;&#x8FD9;&#x4E9B;&#x95EE;&#x9898;&#x3002;</p>
<h3 id="&#x8D44;&#x6E90;&#x5171;&#x4EAB;&#x548C;&#x901A;&#x4FE1;">&#x8D44;&#x6E90;&#x5171;&#x4EAB;&#x548C;&#x901A;&#x4FE1;</h3>
<p>Pod&#x4E2D;&#x7684;&#x5E94;&#x7528;&#x53EF;&#x4EE5;&#x5171;&#x4EAB;&#x7F51;&#x7EDC;&#x7A7A;&#x95F4;&#xFF08;IP&#x5730;&#x5740;&#x548C;&#x7AEF;&#x53E3;&#xFF09;&#xFF0C;&#x56E0;&#x6B64;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;<code>localhost</code>&#x4E92;&#x76F8;&#x53D1;&#x73B0;&#x3002;&#x56E0;&#x6B64;&#xFF0C;pod&#x4E2D;&#x7684;&#x5E94;&#x7528;&#x5FC5;&#x987B;&#x534F;&#x8C03;&#x7AEF;&#x53E3;&#x5360;&#x7528;&#x3002;&#x6BCF;&#x4E2A;pod&#x90FD;&#x6709;&#x4E00;&#x4E2A;&#x552F;&#x4E00;&#x7684;IP&#x5730;&#x5740;&#xFF0C;&#x8DDF;&#x7269;&#x7406;&#x673A;&#x548C;&#x5176;&#x4ED6;pod&#x90FD;&#x5904;&#x4E8E;&#x4E00;&#x4E2A;&#x6241;&#x5E73;&#x7684;&#x7F51;&#x7EDC;&#x7A7A;&#x95F4;&#x4E2D;&#xFF0C;&#x5B83;&#x4EEC;&#x4E4B;&#x95F4;&#x53EF;&#x4EE5;&#x76F4;&#x63A5;&#x8FDE;&#x901A;&#x3002;</p>
<p>Pod&#x4E2D;&#x5E94;&#x7528;&#x5BB9;&#x5668;&#x7684;hostname&#x88AB;&#x8BBE;&#x7F6E;&#x6210;Pod&#x7684;&#x540D;&#x5B57;&#x3002;</p>
<p>Pod&#x4E2D;&#x7684;&#x5E94;&#x7528;&#x5BB9;&#x5668;&#x53EF;&#x4EE5;&#x5171;&#x4EAB;volume&#x3002;Volume&#x80FD;&#x591F;&#x4FDD;&#x8BC1;pod&#x91CD;&#x542F;&#x65F6;&#x4F7F;&#x7528;&#x7684;&#x6570;&#x636E;&#x4E0D;&#x4E22;&#x5931;&#x3002;</p>
<h2 id="pod&#x7684;&#x4F7F;&#x7528;">Pod&#x7684;&#x4F7F;&#x7528;</h2>
<p>Pod&#x4E5F;&#x53EF;&#x4EE5;&#x7528;&#x4E8E;&#x5782;&#x76F4;&#x5E94;&#x7528;&#x6808;&#xFF08;&#x4F8B;&#x5982;LAMP&#xFF09;&#xFF0C;&#x8FD9;&#x6837;&#x4F7F;&#x7528;&#x7684;&#x4E3B;&#x8981;&#x52A8;&#x673A;&#x662F;&#x4E3A;&#x4E86;&#x652F;&#x6301;&#x5171;&#x540C;&#x8C03;&#x5EA6;&#x548C;&#x534F;&#x8C03;&#x7BA1;&#x7406;&#x5E94;&#x7528;&#x7A0B;&#x5E8F;&#xFF0C;&#x4F8B;&#x5982;&#xFF1A;</p>
<ul>
<li>content management systems, file and data loaders, local cache managers, etc.</li>
<li>log and checkpoint backup, compression, rotation, snapshotting, etc.</li>
<li>data change watchers, log tailers, logging and monitoring adapters, event publishers, etc.</li>
<li>proxies, bridges, and adapters</li>
<li>controllers, managers, configurators, and updaters</li>
</ul>
<p>&#x901A;&#x5E38;&#x5355;&#x4E2A;pod&#x4E2D;&#x4E0D;&#x4F1A;&#x540C;&#x65F6;&#x8FD0;&#x884C;&#x4E00;&#x4E2A;&#x5E94;&#x7528;&#x7684;&#x591A;&#x4E2A;&#x5B9E;&#x4F8B;&#x3002;</p>
<p>&#x8BE6;&#x7EC6;&#x8BF4;&#x660E;&#x8BF7;&#x770B;&#xFF1A; <a href="http://blog.kubernetes.io/2015/06/the-distributed-system-toolkit-patterns.html" target="_blank">The Distributed System ToolKit: Patterns for Composite Containers</a>.</p>
<h2 id="&#x5176;&#x4ED6;&#x66FF;&#x4EE3;&#x9009;&#x62E9;">&#x5176;&#x4ED6;&#x66FF;&#x4EE3;&#x9009;&#x62E9;</h2>
<p><strong>&#x4E3A;&#x4EC0;&#x4E48;&#x4E0D;&#x76F4;&#x63A5;&#x5728;&#x4E00;&#x4E2A;&#x5BB9;&#x5668;&#x4E2D;&#x8FD0;&#x884C;&#x591A;&#x4E2A;&#x5E94;&#x7528;&#x7A0B;&#x5E8F;&#x5462;&#xFF1F;</strong></p>
<ol>
<li>&#x900F;&#x660E;&#x3002;&#x8BA9;Pod&#x4E2D;&#x7684;&#x5BB9;&#x5668;&#x5BF9;&#x57FA;&#x7840;&#x8BBE;&#x65BD;&#x53EF;&#x89C1;&#xFF0C;&#x4EE5;&#x4FBF;&#x57FA;&#x7840;&#x8BBE;&#x65BD;&#x80FD;&#x591F;&#x4E3A;&#x8FD9;&#x4E9B;&#x5BB9;&#x5668;&#x63D0;&#x4F9B;&#x670D;&#x52A1;&#xFF0C;&#x4F8B;&#x5982;&#x8FDB;&#x7A0B;&#x7BA1;&#x7406;&#x548C;&#x8D44;&#x6E90;&#x76D1;&#x63A7;&#x3002;&#x8FD9;&#x53EF;&#x4EE5;&#x4E3A;&#x7528;&#x6237;&#x5E26;&#x6765;&#x6781;&#x5927;&#x7684;&#x4FBF;&#x5229;&#x3002;</li>
<li>&#x89E3;&#x8026;&#x8F6F;&#x4EF6;&#x4F9D;&#x8D56;&#x3002;&#x6BCF;&#x4E2A;&#x5BB9;&#x5668;&#x90FD;&#x53EF;&#x4EE5;&#x8FDB;&#x884C;&#x7248;&#x672C;&#x7BA1;&#x7406;&#xFF0C;&#x72EC;&#x7ACB;&#x7684;&#x7F16;&#x8BD1;&#x548C;&#x53D1;&#x5E03;&#x3002;&#x672A;&#x6765;kubernetes&#x751A;&#x81F3;&#x53EF;&#x80FD;&#x652F;&#x6301;&#x5355;&#x4E2A;&#x5BB9;&#x5668;&#x7684;&#x5728;&#x7EBF;&#x5347;&#x7EA7;&#x3002;</li>
<li>&#x4F7F;&#x7528;&#x65B9;&#x4FBF;&#x3002;&#x7528;&#x6237;&#x4E0D;&#x5FC5;&#x8FD0;&#x884C;&#x81EA;&#x5DF1;&#x7684;&#x8FDB;&#x7A0B;&#x7BA1;&#x7406;&#x5668;&#xFF0C;&#x8FD8;&#x8981;&#x62C5;&#x5FC3;&#x9519;&#x8BEF;&#x4FE1;&#x53F7;&#x4F20;&#x64AD;&#x7B49;&#x3002;</li>
<li>&#x6548;&#x7387;&#x3002;&#x56E0;&#x4E3A;&#x7531;&#x57FA;&#x7840;&#x67B6;&#x6784;&#x63D0;&#x4F9B;&#x66F4;&#x591A;&#x7684;&#x804C;&#x8D23;&#xFF0C;&#x6240;&#x4EE5;&#x5BB9;&#x5668;&#x53EF;&#x4EE5;&#x53D8;&#x5F97;&#x66F4;&#x52A0;&#x8F7B;&#x91CF;&#x7EA7;&#x3002;</li>
</ol>
<p><strong>&#x4E3A;&#x4EC0;&#x4E48;&#x4E0D;&#x652F;&#x6301;&#x5BB9;&#x5668;&#x7684;&#x4EB2;&#x548C;&#x6027;&#x7684;&#x534F;&#x540C;&#x8C03;&#x5EA6;&#xFF1F;</strong></p>
<p>&#x8FD9;&#x79CD;&#x65B9;&#x6CD5;&#x53EF;&#x4EE5;&#x63D0;&#x4F9B;&#x5BB9;&#x5668;&#x7684;&#x534F;&#x540C;&#x5B9A;&#x4F4D;&#xFF0C;&#x80FD;&#x591F;&#x6839;&#x636E;&#x5BB9;&#x5668;&#x7684;&#x4EB2;&#x548C;&#x6027;&#x8FDB;&#x884C;&#x8C03;&#x5EA6;&#xFF0C;&#x4F46;&#x662F;&#x65E0;&#x6CD5;&#x5B9E;&#x73B0;&#x4F7F;&#x7528;pod&#x5E26;&#x6765;&#x7684;&#x5927;&#x90E8;&#x5206;&#x597D;&#x5904;&#xFF0C;&#x4F8B;&#x5982;&#x8D44;&#x6E90;&#x5171;&#x4EAB;&#xFF0C;IPC&#xFF0C;&#x4FDD;&#x6301;&#x72B6;&#x6001;&#x4E00;&#x81F4;&#x6027;&#x548C;&#x7B80;&#x5316;&#x7BA1;&#x7406;&#x7B49;&#x3002;</p>
<h2 id="pod&#x7684;&#x6301;&#x4E45;&#x6027;&#xFF08;&#x6216;&#x8005;&#x8BF4;&#x7F3A;&#x4E4F;&#x6301;&#x4E45;&#x6027;&#xFF09;">Pod&#x7684;&#x6301;&#x4E45;&#x6027;&#xFF08;&#x6216;&#x8005;&#x8BF4;&#x7F3A;&#x4E4F;&#x6301;&#x4E45;&#x6027;&#xFF09;</h2>
<p>Pod&#x5728;&#x8BBE;&#x8BA1;&#x652F;&#x6301;&#x5C31;&#x4E0D;&#x662F;&#x4F5C;&#x4E3A;&#x6301;&#x4E45;&#x5316;&#x5B9E;&#x4F53;&#x7684;&#x3002;&#x5728;&#x8C03;&#x5EA6;&#x5931;&#x8D25;&#x3001;&#x8282;&#x70B9;&#x6545;&#x969C;&#x3001;&#x7F3A;&#x5C11;&#x8D44;&#x6E90;&#x6216;&#x8005;&#x8282;&#x70B9;&#x7EF4;&#x62A4;&#x7684;&#x72B6;&#x6001;&#x4E0B;&#x90FD;&#x4F1A;&#x6B7B;&#x6389;&#x4F1A;&#x88AB;&#x9A71;&#x9010;&#x3002;</p>
<p>&#x901A;&#x5E38;&#xFF0C;&#x7528;&#x6237;&#x4E0D;&#x9700;&#x8981;&#x624B;&#x52A8;&#x76F4;&#x63A5;&#x521B;&#x5EFA;Pod&#xFF0C;&#x800C;&#x662F;&#x5E94;&#x8BE5;&#x4F7F;&#x7528;controller&#xFF08;&#x4F8B;&#x5982;<a href="deployment.html">Deployments</a>&#xFF09;&#xFF0C;&#x5373;&#x4F7F;&#x662F;&#x5728;&#x521B;&#x5EFA;&#x5355;&#x4E2A;Pod&#x7684;&#x60C5;&#x51B5;&#x4E0B;&#x3002;Controller&#x53EF;&#x4EE5;&#x63D0;&#x4F9B;&#x96C6;&#x7FA4;&#x7EA7;&#x522B;&#x7684;&#x81EA;&#x6108;&#x529F;&#x80FD;&#x3001;&#x590D;&#x5236;&#x548C;&#x5347;&#x7EA7;&#x7BA1;&#x7406;&#x3002;</p>
<p>The use of collective APIs as the primary user-facing primitive is relatively common among cluster scheduling systems, including <a href="https://research.google.com/pubs/pub43438.html" target="_blank">Borg</a>, <a href="https://mesosphere.github.io/marathon/docs/rest-api.html" target="_blank">Marathon</a>, <a href="http://aurora.apache.org/documentation/latest/reference/configuration/#job-schema" target="_blank">Aurora</a>, and <a href="http://www.slideshare.net/Docker/aravindnarayanan-facebook140613153626phpapp02-37588997" target="_blank">Tupperware</a>.</p>
<p>Pod is exposed as a primitive in order to facilitate:</p>
<ul>
<li>scheduler and controller pluggability</li>
<li>support for pod-level operations without the need to &quot;proxy&quot; them via controller APIs</li>
<li>decoupling of pod lifetime from controller lifetime, such as for bootstrapping</li>
<li>decoupling of controllers and services &#x2014; the endpoint controller just watches pods</li>
<li>clean composition of Kubelet-level functionality with cluster-level functionality &#x2014; Kubelet is effectively the &quot;pod controller&quot;</li>
<li>high-availability applications, which will expect pods to be replaced in advance of their termination and certainly in advance of deletion, such as in the case of planned evictions, image prefetching, or live pod migration <a href="http://issue.k8s.io/3949" target="_blank">#3949</a></li>
</ul>
<p><a href="statefulset.html">StatefulSet</a> controller&#xFF08;&#x76EE;&#x524D;&#x8FD8;&#x662F;beta&#x72B6;&#x6001;&#xFF09;&#x652F;&#x6301;&#x6709;&#x72B6;&#x6001;&#x7684;Pod&#x3002;&#x5728;1.4&#x7248;&#x672C;&#x4E2D;&#x88AB;&#x79F0;&#x4E3A;PetSet&#x3002;&#x5728;kubernetes&#x4E4B;&#x524D;&#x7684;&#x7248;&#x672C;&#x4E2D;&#x521B;&#x5EFA;&#x6709;&#x72B6;&#x6001;pod&#x7684;&#x6700;&#x4F73;&#x65B9;&#x5F0F;&#x662F;&#x521B;&#x5EFA;&#x4E00;&#x4E2A;replica&#x4E3A;1&#x7684;replication controller&#x3002;</p>
<h2 id="pod&#x7684;&#x7EC8;&#x6B62;">Pod&#x7684;&#x7EC8;&#x6B62;</h2>
<p>&#x56E0;&#x4E3A;Pod&#x4F5C;&#x4E3A;&#x5728;&#x96C6;&#x7FA4;&#x7684;&#x8282;&#x70B9;&#x4E0A;&#x8FD0;&#x884C;&#x7684;&#x8FDB;&#x7A0B;&#xFF0C;&#x6240;&#x4EE5;&#x5728;&#x4E0D;&#x518D;&#x9700;&#x8981;&#x7684;&#x65F6;&#x5019;&#x80FD;&#x591F;&#x4F18;&#x96C5;&#x7684;&#x7EC8;&#x6B62;&#x6389;&#x662F;&#x5341;&#x5206;&#x5FC5;&#x8981;&#x7684;&#xFF08;&#x6BD4;&#x8D77;&#x4F7F;&#x7528;&#x53D1;&#x9001;KILL&#x4FE1;&#x53F7;&#x8FD9;&#x79CD;&#x66B4;&#x529B;&#x7684;&#x65B9;&#x5F0F;&#xFF09;&#x3002;&#x7528;&#x6237;&#x9700;&#x8981;&#x80FD;&#x591F;&#x653E;&#x677E;&#x5220;&#x9664;&#x8BF7;&#x6C42;&#xFF0C;&#x5E76;&#x4E14;&#x77E5;&#x9053;&#x5B83;&#x4EEC;&#x4F55;&#x65F6;&#x4F1A;&#x88AB;&#x7EC8;&#x6B62;&#xFF0C;&#x662F;&#x5426;&#x88AB;&#x6B63;&#x786E;&#x7684;&#x5220;&#x9664;&#x3002;&#x7528;&#x6237;&#x60F3;&#x7EC8;&#x6B62;&#x7A0B;&#x5E8F;&#x65F6;&#x53D1;&#x9001;&#x5220;&#x9664;pod&#x7684;&#x8BF7;&#x6C42;&#xFF0C;&#x5728;pod&#x53EF;&#x4EE5;&#x88AB;&#x5F3A;&#x5236;&#x5220;&#x9664;&#x524D;&#x4F1A;&#x6709;&#x4E00;&#x4E2A;&#x4F18;&#x96C5;&#x5220;&#x9664;&#x7684;&#x65F6;&#x95F4;&#xFF0C;&#x4F1A;&#x53D1;&#x9001;&#x4E00;&#x4E2A;TERM&#x8BF7;&#x6C42;&#x5230;&#x6BCF;&#x4E2A;&#x5BB9;&#x5668;&#x7684;&#x4E3B;&#x8FDB;&#x7A0B;&#x3002;&#x4E00;&#x65E6;&#x8D85;&#x65F6;&#xFF0C;&#x5C06;&#x5411;&#x4E3B;&#x8FDB;&#x7A0B;&#x53D1;&#x9001;KILL&#x4FE1;&#x53F7;&#x5E76;&#x4ECE;API server&#x4E2D;&#x5220;&#x9664;&#x3002;&#x5982;&#x679C;kubelet&#x6216;&#x8005;container manager&#x5728;&#x7B49;&#x5F85;&#x8FDB;&#x7A0B;&#x7EC8;&#x6B62;&#x7684;&#x8FC7;&#x7A0B;&#x4E2D;&#x91CD;&#x542F;&#xFF0C;&#x5728;&#x91CD;&#x542F;&#x540E;&#x4ECD;&#x7136;&#x4F1A;&#x91CD;&#x8BD5;&#x5B8C;&#x6574;&#x7684;&#x4F18;&#x96C5;&#x5220;&#x9664;&#x9636;&#x6BB5;&#x3002;</p>
<p>&#x793A;&#x4F8B;&#x6D41;&#x7A0B;&#x5982;&#x4E0B;&#xFF1A;</p>
<ol>
<li>&#x7528;&#x6237;&#x53D1;&#x9001;&#x5220;&#x9664;pod&#x7684;&#x547D;&#x4EE4;&#xFF0C;&#x9ED8;&#x8BA4;&#x4F18;&#x96C5;&#x5220;&#x9664;&#x65F6;&#x671F;&#x662F;30&#x79D2;&#xFF1B;</li>
<li>&#x5728;Pod&#x8D85;&#x8FC7;&#x8BE5;&#x4F18;&#x96C5;&#x5220;&#x9664;&#x671F;&#x9650;&#x540E;API server&#x5C31;&#x4F1A;&#x66F4;&#x65B0;Pod&#x7684;&#x72B6;&#x6001;&#x4E3A;&#x201C;dead&#x201D;&#xFF1B;</li>
<li>&#x5728;&#x5BA2;&#x6237;&#x7AEF;&#x547D;&#x4EE4;&#x884C;&#x4E0A;&#x663E;&#x793A;&#x7684;Pod&#x72B6;&#x6001;&#x4E3A;&#x201C;terminating&#x201D;&#xFF1B;</li>
<li>&#x8DDF;&#x7B2C;&#x4E09;&#x6B65;&#x540C;&#x65F6;&#xFF0C;&#x5F53;kubelet&#x53D1;&#x73B0;pod&#x88AB;&#x6807;&#x8BB0;&#x4E3A;&#x201C;terminating&#x201D;&#x72B6;&#x6001;&#x65F6;&#xFF0C;&#x5F00;&#x59CB;&#x505C;&#x6B62;pod&#x8FDB;&#x7A0B;&#xFF1A;<ol>
<li>&#x5982;&#x679C;&#x5728;pod&#x4E2D;&#x5B9A;&#x4E49;&#x4E86;preStop hook&#xFF0C;&#x5728;&#x505C;&#x6B62;pod&#x524D;&#x4F1A;&#x88AB;&#x8C03;&#x7528;&#x3002;&#x5982;&#x679C;&#x5728;&#x4F18;&#x96C5;&#x5220;&#x9664;&#x671F;&#x9650;&#x8FC7;&#x671F;&#x540E;&#xFF0C;preStop hook&#x4F9D;&#x7136;&#x5728;&#x8FD0;&#x884C;&#xFF0C;&#x7B2C;&#x4E8C;&#x6B65;&#x4F1A;&#x518D;&#x589E;&#x52A0;2&#x79D2;&#x7684;&#x4F18;&#x96C5;&#x65F6;&#x95F4;&#xFF1B;</li>
<li>&#x5411;Pod&#x4E2D;&#x7684;&#x8FDB;&#x7A0B;&#x53D1;&#x9001;TERM&#x4FE1;&#x53F7;&#xFF1B;</li>
</ol>
</li>
<li>&#x8DDF;&#x7B2C;&#x4E09;&#x6B65;&#x540C;&#x65F6;&#xFF0C;&#x8BE5;Pod&#x5C06;&#x4ECE;&#x8BE5;service&#x7684;&#x7AEF;&#x70B9;&#x5217;&#x8868;&#x4E2D;&#x5220;&#x9664;&#xFF0C;&#x4E0D;&#x518D;&#x662F;replication controller&#x7684;&#x4E00;&#x90E8;&#x5206;&#x3002;&#x5173;&#x95ED;&#x7684;&#x6162;&#x7684;pod&#x5C06;&#x7EE7;&#x7EED;&#x5904;&#x7406;load balancer&#x8F6C;&#x53D1;&#x7684;&#x6D41;&#x91CF;&#xFF1B;</li>
<li>&#x8FC7;&#x4E86;&#x4F18;&#x96C5;&#x5468;&#x671F;&#x540E;&#xFF0C;&#x5C06;&#x5411;Pod&#x4E2D;&#x4F9D;&#x7136;&#x8FD0;&#x884C;&#x7684;&#x8FDB;&#x7A0B;&#x53D1;&#x9001;SIGKILL&#x4FE1;&#x53F7;&#x800C;&#x6740;&#x6389;&#x8FDB;&#x7A0B;&#x3002;</li>
<li>Kublete&#x4F1A;&#x5728;API server&#x4E2D;&#x5B8C;&#x6210;Pod&#x7684;&#x7684;&#x5220;&#x9664;&#xFF0C;&#x901A;&#x8FC7;&#x5C06;&#x4F18;&#x96C5;&#x5468;&#x671F;&#x8BBE;&#x7F6E;&#x4E3A;0&#xFF08;&#x7ACB;&#x5373;&#x5220;&#x9664;&#xFF09;&#x3002;Pod&#x5728;API&#x4E2D;&#x6D88;&#x5931;&#xFF0C;&#x5E76;&#x4E14;&#x5728;&#x5BA2;&#x6237;&#x7AEF;&#x4E5F;&#x4E0D;&#x53EF;&#x89C1;&#x3002;</li>
</ol>
<p>&#x5220;&#x9664;&#x4F18;&#x96C5;&#x5468;&#x671F;&#x9ED8;&#x8BA4;&#x662F;30&#x79D2;&#x3002; <code>kubectl delete</code>&#x547D;&#x4EE4;&#x652F;&#x6301; <code>&#x2014;grace-period=&lt;seconds&gt;</code> &#x9009;&#x9879;&#xFF0C;&#x5141;&#x8BB8;&#x7528;&#x6237;&#x8BBE;&#x7F6E;&#x81EA;&#x5DF1;&#x7684;&#x4F18;&#x96C5;&#x5468;&#x671F;&#x65F6;&#x95F4;&#x3002;&#x5982;&#x679C;&#x8BBE;&#x7F6E;&#x4E3A;0&#x5C06;&#x5F3A;&#x5236;&#x5220;&#x9664;pod&#x3002;&#x5728;kubectl&gt;=1.5&#x7248;&#x672C;&#x7684;&#x547D;&#x4EE4;&#x4E2D;&#xFF0C;&#x4F60;&#x5FC5;&#x987B;&#x540C;&#x65F6;&#x4F7F;&#x7528; <code>--force</code> &#x548C; <code>--grace-period=0</code> &#x6765;&#x5F3A;&#x5236;&#x5220;&#x9664;pod&#x3002;</p>
<h3 id="&#x5F3A;&#x5236;&#x5220;&#x9664;pod">&#x5F3A;&#x5236;&#x5220;&#x9664;Pod</h3>
<p>Pod&#x7684;&#x5F3A;&#x5236;&#x5220;&#x9664;&#x662F;&#x901A;&#x8FC7;&#x5728;&#x96C6;&#x7FA4;&#x548C;etcd&#x4E2D;&#x5C06;&#x5176;&#x5B9A;&#x4E49;&#x4E3A;&#x5220;&#x9664;&#x72B6;&#x6001;&#x3002;&#x5F53;&#x6267;&#x884C;&#x5F3A;&#x5236;&#x5220;&#x9664;&#x547D;&#x4EE4;&#x65F6;&#xFF0C;API server&#x4E0D;&#x4F1A;&#x7B49;&#x5F85;&#x8BE5;pod&#x6240;&#x8FD0;&#x884C;&#x5728;&#x8282;&#x70B9;&#x4E0A;&#x7684;kubelet&#x786E;&#x8BA4;&#xFF0C;&#x5C31;&#x4F1A;&#x7ACB;&#x5373;&#x5C06;&#x8BE5;pod&#x4ECE;API server&#x4E2D;&#x79FB;&#x9664;&#xFF0C;&#x8FD9;&#x65F6;&#x5C31;&#x53EF;&#x4EE5;&#x521B;&#x5EFA;&#x8DDF;&#x539F;pod&#x540C;&#x540D;&#x7684;pod&#x4E86;&#x3002;&#x8FD9;&#x65F6;&#xFF0C;&#x5728;&#x8282;&#x70B9;&#x4E0A;&#x7684;pod&#x4F1A;&#x88AB;&#x7ACB;&#x5373;&#x8BBE;&#x7F6E;&#x4E3A;terminating&#x72B6;&#x6001;&#xFF0C;&#x4E0D;&#x8FC7;&#x5728;&#x88AB;&#x5F3A;&#x5236;&#x5220;&#x9664;&#x4E4B;&#x524D;&#x4F9D;&#x7136;&#x6709;&#x4E00;&#x5C0F;&#x6BB5;&#x4F18;&#x96C5;&#x5220;&#x9664;&#x5468;&#x671F;&#x3002;</p>
<p>&#x5F3A;&#x5236;&#x5220;&#x9664;&#x5BF9;&#x4E8E;&#x67D0;&#x4E9B;pod&#x5177;&#x6709;&#x6F5C;&#x5728;&#x5371;&#x9669;&#x6027;&#xFF0C;&#x8BF7;&#x8C28;&#x614E;&#x4F7F;&#x7528;&#x3002;&#x4F7F;&#x7528;StatefulSet pod&#x7684;&#x60C5;&#x51B5;&#x4E0B;&#xFF0C;&#x8BF7;&#x53C2;&#x8003;&#x5220;&#x9664;StatefulSet&#x4E2D;&#x7684;pod&#x6587;&#x7AE0;&#x3002;</p>
<h2 id="pod&#x4E2D;&#x5BB9;&#x5668;&#x7684;&#x7279;&#x6743;&#x6A21;&#x5F0F;">Pod&#x4E2D;&#x5BB9;&#x5668;&#x7684;&#x7279;&#x6743;&#x6A21;&#x5F0F;</h2>
<p>&#x4ECE;kubernetes1.1&#x7248;&#x672C;&#x5F00;&#x59CB;&#xFF0C;pod&#x4E2D;&#x7684;&#x5BB9;&#x5668;&#x5C31;&#x53EF;&#x4EE5;&#x5F00;&#x542F;previleged&#x6A21;&#x5F0F;&#xFF0C;&#x5728;&#x5BB9;&#x5668;&#x5B9A;&#x4E49;&#x6587;&#x4EF6;&#x7684; <code>SecurityContext</code> &#x4E0B;&#x4F7F;&#x7528; <code>privileged</code> flag&#x3002; &#x8FD9;&#x5728;&#x4F7F;&#x7528;Linux&#x7684;&#x7F51;&#x7EDC;&#x64CD;&#x4F5C;&#x548C;&#x8BBF;&#x95EE;&#x8BBE;&#x5907;&#x7684;&#x80FD;&#x529B;&#x65F6;&#x662F;&#x5F88;&#x7528;&#x7684;&#x3002;&#x540C;&#x65F6;&#x5F00;&#x542F;&#x7684;&#x7279;&#x6743;&#x6A21;&#x5F0F;&#x7684;Pod&#x4E2D;&#x7684;&#x5BB9;&#x5668;&#x4E5F;&#x53EF;&#x4EE5;&#x8BBF;&#x95EE;&#x5230;&#x5BB9;&#x5668;&#x5916;&#x7684;&#x8FDB;&#x7A0B;&#x548C;&#x5E94;&#x7528;&#x3002;&#x5728;&#x4E0D;&#x9700;&#x8981;&#x4FEE;&#x6539;&#x548C;&#x91CD;&#x65B0;&#x7F16;&#x8BD1;kubelet&#x7684;&#x60C5;&#x51B5;&#x4E0B;&#x5C31;&#x53EF;&#x4EE5;&#x4F7F;&#x7528;pod&#x6765;&#x5F00;&#x53D1;&#x8282;&#x70B9;&#x7684;&#x7F51;&#x7EDC;&#x548C;&#x5B58;&#x50A8;&#x63D2;&#x4EF6;&#x3002;</p>
<p>&#x5982;&#x679C;master&#x8282;&#x70B9;&#x8FD0;&#x884C;&#x7684;&#x662F;kuberentes1.1&#x6216;&#x66F4;&#x9AD8;&#x7248;&#x672C;&#xFF0C;&#x800C;node&#x8282;&#x70B9;&#x7684;&#x7248;&#x672C;&#x4F4E;&#x4E8E;1.1&#x7248;&#x672C;&#xFF0C;&#x5219;API server&#x5C06;&#x4E5F;&#x53EF;&#x4EE5;&#x63A5;&#x53D7;&#x65B0;&#x7684;&#x7279;&#x6743;&#x6A21;&#x5F0F;&#x7684;pod&#xFF0C;&#x4F46;&#x662F;&#x65E0;&#x6CD5;&#x542F;&#x52A8;&#xFF0C;pod&#x5C06;&#x5904;&#x4E8E;pending&#x72B6;&#x6001;&#x3002;</p>
<p>&#x6267;&#x884C; <code>kubectl describe pod FooPodName</code>&#xFF0C;&#x53EF;&#x4EE5;&#x770B;&#x5230;&#x4E3A;&#x4EC0;&#x4E48;pod&#x5904;&#x4E8E;pending&#x72B6;&#x6001;&#x3002;&#x8F93;&#x51FA;&#x7684;event&#x5217;&#x8868;&#x4E2D;&#x5C06;&#x663E;&#x793A;&#xFF1A;
<code>Error validating pod &quot;FooPodName&quot;.&quot;FooPodNamespace&quot; from api, ignoring: spec.containers[0].securityContext.privileged: forbidden &apos;&lt;*&gt;(0xc2089d3248)true&apos;</code></p>
<p>&#x5982;&#x679C;master&#x8282;&#x70B9;&#x7684;&#x7248;&#x672C;&#x4F4E;&#x4E8E;1.1&#xFF0C;&#x65E0;&#x6CD5;&#x521B;&#x5EFA;&#x7279;&#x6743;&#x6A21;&#x5F0F;&#x7684;pod&#x3002;&#x5982;&#x679C;&#x4F60;&#x4ECD;&#x7136;&#x8BD5;&#x56FE;&#x53BB;&#x521B;&#x5EFA;&#x7684;&#x8BDD;&#xFF0C;&#x4F60;&#x5F97;&#x5230;&#x5982;&#x4E0B;&#x9519;&#x8BEF;&#xFF1A;</p>
<p><code>The Pod &quot;FooPodName&quot; is invalid. spec.containers[0].securityContext.privileged: forbidden &apos;&lt;*&gt;(0xc20b222db0)true&apos;</code></p>
<h2 id="api-object">API Object</h2>
<p>Pod&#x662F;kubernetes REST API&#x4E2D;&#x7684;&#x9876;&#x7EA7;&#x8D44;&#x6E90;&#x7C7B;&#x578B;&#x3002;</p>
<p>&#x5728;kuberentes1.6&#x7684;V1 core API&#x7248;&#x672C;&#x4E2D;&#x7684;Pod&#x7684;&#x6570;&#x636E;&#x7ED3;&#x6784;&#x5982;&#x4E0B;&#x56FE;&#x6240;&#x793A;&#xFF1A;</p>
<figure id="fig2.3.1.1.2"><img src="../images/kubernetes-pod-cheatsheet.png" alt="Pod Cheatsheet"><figcaption>&#x56FE;&#x7247; - Pod Cheatsheet</figcaption></figure>
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<script src="../gitbook/gitbook-plugin-search-plus/jquery.mark.min.js"></script>
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<script src="../gitbook/gitbook-plugin-3-ba/plugin.js"></script>
<script src="../gitbook/gitbook-plugin-sharing/buttons.js"></script>
<script src="../gitbook/gitbook-plugin-fontsettings/fontsettings.js"></script>
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