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<title>2.2.1.3 Pod安全策略 · Kubernetes Handbook</title>
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1. 前言
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2. 概念原理
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2.1 设计理念
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2.2 Objects
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2.2.1 Pod
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2.2.1.1 Pod解析
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2.2.1.2 Init容器
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2.2.1.3 Pod安全策略
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2.2.1.4 Pod的生命周期
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2.2.2 Node
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2.2.3 Namespace
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2.2.4 Service
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2.2.5 Volume和Persistent Volume
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2.2.6 Deployment
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2.2.7 Secret
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2.2.8 StatefulSet
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2.2.9 DaemonSet
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2.2.10 ServiceAccount
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2.2.11 ReplicationController和ReplicaSet
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2.2.12 Job
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2.2.13 CronJob
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2.2.14 Ingress
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2.2.15 ConfigMap
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2.2.16 Horizontal Pod Autoscaling
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2.2.17 Label
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2.2.18 垃圾收集
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2.2.19 NetworkPolicy
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3. 用户指南
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3.1 资源配置
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3.1.1 配置Pod的liveness和readiness探针
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3.1.2 配置Pod的Service Account
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3.2 命令使用
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3.2.1 使用kubectl
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3.2.2 docker用户过度到kubectl命令行指南
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3.3 集群安全性管理
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3.3.1 管理集群中的TLS
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3.3.2 kubelet的认证授权
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3.3.3 TLS bootstrap
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3.3.4 kubectl的用户认证授权
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3.3.5 RBAC——基于角色的访问控制
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3.3.6 IP伪装代理
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3.4 访问 Kubernetes 集群
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3.4.1 访问集群
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3.4.2 使用 kubeconfig 文件配置跨集群认证
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3.4.3 通过端口转发访问集群中的应用程序
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<li class="chapter " data-level="1.3.4.4" data-path="../guide/service-access-application-cluster.html">
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3.4.4 使用 service 访问群集中的应用程序
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3.5 在kubernetes中开发部署应用
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3.5.1 适用于kubernetes的应用开发部署流程
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3.5.2 迁移传统应用到kubernetes中——以Hadoop YARN为例
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4. 最佳实践
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4.1 在CentOS上部署kubernetes1.6集群
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4.1.1 创建TLS证书和秘钥
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4.1.2 创建kubeconfig文件
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4.1.3 创建高可用etcd集群
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4.1.4 安装kubectl命令行工具
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<li class="chapter " data-level="1.4.1.5" data-path="../practice/master-installation.html">
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4.1.5 部署master节点
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4.1.6 部署node节点
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4.1.7 安装kubedns插件
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<li class="chapter " data-level="1.4.1.8" data-path="../practice/dashboard-addon-installation.html">
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4.1.8 安装dashboard插件
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<li class="chapter " data-level="1.4.1.9" data-path="../practice/heapster-addon-installation.html">
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4.1.9 安装heapster插件
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<li class="chapter " data-level="1.4.1.10" data-path="../practice/efk-addon-installation.html">
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4.1.10 安装EFK插件
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<li class="chapter " data-level="1.4.2" data-path="../practice/service-discovery-and-loadbalancing.html">
<a href="../practice/service-discovery-and-loadbalancing.html">
4.2 服务发现与负载均衡
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<ul class="articles">
<li class="chapter " data-level="1.4.2.1" data-path="../practice/traefik-ingress-installation.html">
<a href="../practice/traefik-ingress-installation.html">
4.2.1 安装Traefik ingress
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<li class="chapter " data-level="1.4.2.2" data-path="../practice/distributed-load-test.html">
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4.2.2 分布式负载测试
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<li class="chapter " data-level="1.4.2.3" data-path="../practice/network-and-cluster-perfermance-test.html">
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4.2.3 网络和集群性能测试
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<li class="chapter " data-level="1.4.2.4" data-path="../practice/edge-node-configuration.html">
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4.2.4 边缘节点配置
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<li class="chapter " data-level="1.4.3" data-path="../practice/operation.html">
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4.3 运维管理
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<li class="chapter " data-level="1.4.3.1" data-path="../practice/service-rolling-update.html">
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4.3.1 服务滚动升级
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<li class="chapter " data-level="1.4.3.2" data-path="../practice/app-log-collection.html">
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4.3.2 应用日志收集
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<li class="chapter " data-level="1.4.3.3" data-path="../practice/configuration-best-practice.html">
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4.3.3 配置最佳实践
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<li class="chapter " data-level="1.4.3.4" data-path="../practice/monitor.html">
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4.3.4 集群及应用监控
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<li class="chapter " data-level="1.4.3.5" data-path="../practice/jenkins-ci-cd.html">
<a href="../practice/jenkins-ci-cd.html">
4.3.5 使用Jenkins进行持续构建与发布
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<li class="chapter " data-level="1.4.3.6" data-path="../practice/data-persistence-problem.html">
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4.3.6 数据持久化问题
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<li class="chapter " data-level="1.4.3.7" data-path="../practice/manage-compute-resources-container.html">
<a href="../practice/manage-compute-resources-container.html">
4.3.7 管理容器的计算资源
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<li class="chapter " data-level="1.4.3.8" data-path="../practice/using-prometheus-to-monitor-kuberentes-cluster.html">
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4.3.8 使用Prometheus监控kubernetes集群
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4.4 存储管理
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4.4.1 GlusterFS
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<li class="chapter " data-level="1.4.4.1.1" data-path="../practice/using-glusterfs-for-persistent-storage.html">
<a href="../practice/using-glusterfs-for-persistent-storage.html">
4.4.1.1 使用GlusterFS做持久化存储
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<li class="chapter " data-level="1.4.4.1.2" data-path="../practice/storage-for-containers-using-glusterfs-with-openshift.html">
<a href="../practice/storage-for-containers-using-glusterfs-with-openshift.html">
4.4.1.2 在OpenShift中使用GlusterFS做持久化存储
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<li class="chapter " data-level="1.4.4.2" data-path="../practice/cephfs.html">
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4.4.2 CephFS
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<li class="chapter " data-level="1.4.4.2.1" data-path="../practice/using-ceph-for-persistent-storage.html">
<a href="../practice/using-ceph-for-persistent-storage.html">
4.4.2.1 使用Ceph做持久化存储
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</ul>
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</ul>
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<li class="chapter " data-level="1.5" data-path="../usecases/">
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5. 领域应用
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<li class="chapter " data-level="1.5.1" data-path="../usecases/microservices.html">
<a href="../usecases/microservices.html">
5.1 微服务架构
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<ul class="articles">
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<li class="chapter " data-level="1.5.1.1" data-path="../usecases/service-discovery-in-microservices.html">
<a href="../usecases/service-discovery-in-microservices.html">
5.1.1 微服务中的服务发现
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</ul>
</li>
<li class="chapter " data-level="1.5.2" data-path="../usecases/service-mesh.html">
<a href="../usecases/service-mesh.html">
5.2 Service Mesh 服务网格
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<li class="chapter " data-level="1.5.2.1" data-path="../usecases/istio.html">
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<a href="../usecases/istio.html">
5.1.1 Istio
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<a href="../usecases/istio-installation.html">
5.1.1.1 安装istio
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<li class="chapter " data-level="1.5.2.1.2" data-path="../usecases/configuring-request-routing.html">
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<a href="../usecases/configuring-request-routing.html">
5.1.1.2 配置请求的路由规则
</a>
</li>
</ul>
</li>
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<a href="../usecases/linkerd.html">
5.1.2 Linkerd
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<ul class="articles">
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<li class="chapter " data-level="1.5.2.2.1" data-path="../usecases/linkerd-user-guide.html">
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<a href="../usecases/linkerd-user-guide.html">
5.1.2.1 Linkerd 使用指南
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</ul>
</li>
</ul>
</li>
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<a href="../usecases/big-data.html">
5.2 大数据
</a>
<ul class="articles">
2017-09-20 21:55:19 +08:00
<li class="chapter " data-level="1.5.3.1" data-path="../usecases/spark-standalone-on-kubernetes.html">
2017-09-03 15:58:39 +08:00
<a href="../usecases/spark-standalone-on-kubernetes.html">
5.2.1 Spark standalone on Kubernetes
</a>
</li>
2017-09-20 21:55:19 +08:00
<li class="chapter " data-level="1.5.3.2" data-path="../usecases/running-spark-with-kubernetes-native-scheduler.html">
2017-09-03 15:58:39 +08:00
2017-09-14 15:57:50 +08:00
<a href="../usecases/running-spark-with-kubernetes-native-scheduler.html">
2017-09-03 15:58:39 +08:00
5.2.2 运行支持kubernetes原生调度的Spark程序
</a>
</li>
</ul>
</li>
2017-09-20 21:55:19 +08:00
<li class="chapter " data-level="1.5.4" data-path="../usecases/serverless.html">
2017-09-03 15:58:39 +08:00
<a href="../usecases/serverless.html">
5.3 Serverless架构
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="1.6" data-path="../develop/">
<a href="../develop/">
6. 开发指南
</a>
<ul class="articles">
<li class="chapter " data-level="1.6.1" data-path="../develop/developing-environment.html">
<a href="../develop/developing-environment.html">
6.1 开发环境搭建
</a>
</li>
<li class="chapter " data-level="1.6.2" data-path="../develop/testing.html">
<a href="../develop/testing.html">
6.2 单元测试和集成测试
</a>
</li>
<li class="chapter " data-level="1.6.3" data-path="../develop/client-go-sample.html">
<a href="../develop/client-go-sample.html">
6.3 client-go示例
</a>
</li>
<li class="chapter " data-level="1.6.4" data-path="../develop/contribute.html">
<a href="../develop/contribute.html">
6.4 社区贡献
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="1.7" data-path="../appendix/">
<a href="../appendix/">
7. 附录
</a>
<ul class="articles">
<li class="chapter " data-level="1.7.1" data-path="../appendix/docker-best-practice.html">
<a href="../appendix/docker-best-practice.html">
7.1 Docker最佳实践
</a>
</li>
<li class="chapter " data-level="1.7.2" data-path="../appendix/issues.html">
<a href="../appendix/issues.html">
7.2 问题记录
</a>
</li>
<li class="chapter " data-level="1.7.3" data-path="../appendix/tricks.html">
<a href="../appendix/tricks.html">
7.3 使用技巧
</a>
</li>
<li class="chapter " data-level="1.7.4" data-path="../appendix/debug-kubernetes-services.html">
<a href="../appendix/debug-kubernetes-services.html">
7.4 kubernetes service中的故障排查
</a>
2017-09-03 15:58:39 +08:00
</li>
</ul>
</li>
<li class="divider"></li>
<li>
<a href="https://www.gitbook.com" target="blank" class="gitbook-link">
2017-09-19 22:01:07 +08:00
本书使用 GitBook 发布
2017-09-03 15:58:39 +08:00
</a>
</li>
</ul>
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</div>
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<!-- Title -->
<h1>
<i class="fa fa-circle-o-notch fa-spin"></i>
<a href=".." >2.2.1.3 Pod安全策略</a>
</h1>
</div>
<div class="page-wrapper" tabindex="-1" role="main">
<div class="page-inner">
<div class="search-plus" id="book-search-results">
<div class="search-noresults">
<section class="normal markdown-section">
<h1 id="pod-&#x5B89;&#x5168;&#x7B56;&#x7565;">Pod &#x5B89;&#x5168;&#x7B56;&#x7565;</h1>
<p><code>PodSecurityPolicy</code> &#x7C7B;&#x578B;&#x7684;&#x5BF9;&#x8C61;&#x80FD;&#x591F;&#x63A7;&#x5236;&#xFF0C;&#x662F;&#x5426;&#x53EF;&#x4EE5;&#x5411; Pod &#x53D1;&#x9001;&#x8BF7;&#x6C42;&#xFF0C;&#x8BE5; Pod &#x80FD;&#x591F;&#x5F71;&#x54CD;&#x88AB;&#x5E94;&#x7528;&#x5230; Pod &#x548C;&#x5BB9;&#x5668;&#x7684; <code>SecurityContext</code>&#x3002; &#x67E5;&#x770B; <a href="https://git.k8s.io/community/contributors/design-proposals/security-context-constraints.md" target="_blank">Pod &#x5B89;&#x5168;&#x7B56;&#x7565;&#x5EFA;&#x8BAE;</a> &#x83B7;&#x53D6;&#x66F4;&#x591A;&#x4FE1;&#x606F;&#x3002;</p>
<h2 id="&#x4EC0;&#x4E48;&#x662F;-pod-&#x5B89;&#x5168;&#x7B56;&#x7565;&#xFF1F;">&#x4EC0;&#x4E48;&#x662F; Pod &#x5B89;&#x5168;&#x7B56;&#x7565;&#xFF1F;</h2>
<p><em>Pod &#x5B89;&#x5168;&#x7B56;&#x7565;</em> &#x662F;&#x96C6;&#x7FA4;&#x7EA7;&#x522B;&#x7684;&#x8D44;&#x6E90;&#xFF0C;&#x5B83;&#x80FD;&#x591F;&#x63A7;&#x5236; Pod &#x8FD0;&#x884C;&#x7684;&#x884C;&#x4E3A;&#xFF0C;&#x4EE5;&#x53CA;&#x5B83;&#x5177;&#x6709;&#x8BBF;&#x95EE;&#x4EC0;&#x4E48;&#x7684;&#x80FD;&#x529B;&#x3002; <code>PodSecurityPolicy</code>&#x5BF9;&#x8C61;&#x5B9A;&#x4E49;&#x4E86;&#x4E00;&#x7EC4;&#x6761;&#x4EF6;&#xFF0C;&#x6307;&#x793A; Pod &#x5FC5;&#x987B;&#x6309;&#x7CFB;&#x7EDF;&#x6240;&#x80FD;&#x63A5;&#x53D7;&#x7684;&#x987A;&#x5E8F;&#x8FD0;&#x884C;&#x3002; &#x5B83;&#x4EEC;&#x5141;&#x8BB8;&#x7BA1;&#x7406;&#x5458;&#x63A7;&#x5236;&#x5982;&#x4E0B;&#x65B9;&#x9762;&#xFF1A;</p>
<table>
<thead>
<tr>
<th>&#x63A7;&#x5236;&#x9762;</th>
<th>&#x5B57;&#x6BB5;&#x540D;&#x79F0;</th>
</tr>
</thead>
<tbody>
<tr>
<td>&#x5DF2;&#x6388;&#x6743;&#x5BB9;&#x5668;&#x7684;&#x8FD0;&#x884C;</td>
<td><code>privileged</code></td>
</tr>
<tr>
<td>&#x4E3A;&#x5BB9;&#x5668;&#x6DFB;&#x52A0;&#x9ED8;&#x8BA4;&#x7684;&#x4E00;&#x7EC4;&#x80FD;&#x529B;</td>
<td><code>defaultAddCapabilities</code></td>
</tr>
<tr>
<td>&#x4E3A;&#x5BB9;&#x5668;&#x53BB;&#x6389;&#x67D0;&#x4E9B;&#x80FD;&#x529B;</td>
<td><code>requiredDropCapabilities</code></td>
</tr>
<tr>
<td>&#x5BB9;&#x5668;&#x80FD;&#x591F;&#x8BF7;&#x6C42;&#x6DFB;&#x52A0;&#x67D0;&#x4E9B;&#x80FD;&#x529B;</td>
<td><code>allowedCapabilities</code></td>
</tr>
<tr>
<td>&#x63A7;&#x5236;&#x5377;&#x7C7B;&#x578B;&#x7684;&#x4F7F;&#x7528;</td>
<td><a href="https://kubernetes.io/docs/concepts/policy/pod-security-policy/#controlling-volumes" target="_blank"><code>volumes</code></a></td>
</tr>
<tr>
<td>&#x4E3B;&#x673A;&#x7F51;&#x7EDC;&#x7684;&#x4F7F;&#x7528;</td>
<td><a href="https://kubernetes.io/docs/concepts/policy/pod-security-policy/#host-network" target="_blank"><code>hostNetwork</code></a></td>
</tr>
<tr>
<td>&#x4E3B;&#x673A;&#x7AEF;&#x53E3;&#x7684;&#x4F7F;&#x7528;</td>
<td><code>hostPorts</code></td>
</tr>
<tr>
<td>&#x4E3B;&#x673A; PID namespace &#x7684;&#x4F7F;&#x7528;</td>
<td><code>hostPID</code></td>
</tr>
<tr>
<td>&#x4E3B;&#x673A; IPC namespace &#x7684;&#x4F7F;&#x7528;</td>
<td><code>hostIPC</code></td>
</tr>
<tr>
<td>&#x4E3B;&#x673A;&#x8DEF;&#x5F84;&#x7684;&#x4F7F;&#x7528;</td>
<td><a href="https://kubernetes.io/docs/concepts/policy/pod-security-policy/#allowed-host-paths" target="_blank"><code>allowedHostPaths</code></a></td>
</tr>
<tr>
<td>&#x5BB9;&#x5668;&#x7684; SELinux &#x4E0A;&#x4E0B;&#x6587;</td>
<td><a href="https://kubernetes.io/docs/concepts/policy/pod-security-policy/#selinux" target="_blank"><code>seLinux</code></a></td>
</tr>
<tr>
<td>&#x7528;&#x6237; ID</td>
<td><a href="https://kubernetes.io/docs/concepts/policy/pod-security-policy/#runasuser" target="_blank"><code>runAsUser</code></a></td>
</tr>
<tr>
<td>&#x914D;&#x7F6E;&#x5141;&#x8BB8;&#x7684;&#x8865;&#x5145;&#x7EC4;</td>
<td><a href="https://kubernetes.io/docs/concepts/policy/pod-security-policy/#supplementalgroups" target="_blank"><code>supplementalGroups</code></a></td>
</tr>
<tr>
<td>&#x5206;&#x914D;&#x62E5;&#x6709; Pod &#x6570;&#x636E;&#x5377;&#x7684; FSGroup</td>
<td><a href="https://kubernetes.io/docs/concepts/policy/pod-security-policy/#fsgroup" target="_blank"><code>fsGroup</code></a></td>
</tr>
<tr>
<td>&#x5FC5;&#x987B;&#x4F7F;&#x7528;&#x4E00;&#x4E2A;&#x53EA;&#x8BFB;&#x7684; root &#x6587;&#x4EF6;&#x7CFB;&#x7EDF;</td>
<td><code>readOnlyRootFilesystem</code></td>
</tr>
</tbody>
</table>
<p><em>Pod &#x5B89;&#x5168;&#x7B56;&#x7565;</em> &#x7531;&#x8BBE;&#x7F6E;&#x548C;&#x7B56;&#x7565;&#x7EC4;&#x6210;&#xFF0C;&#x5B83;&#x4EEC;&#x80FD;&#x591F;&#x63A7;&#x5236; Pod &#x8BBF;&#x95EE;&#x7684;&#x5B89;&#x5168;&#x7279;&#x5F81;&#x3002;&#x8FD9;&#x4E9B;&#x8BBE;&#x7F6E;&#x5206;&#x4E3A;&#x5982;&#x4E0B;&#x4E09;&#x7C7B;&#xFF1A;</p>
<ul>
<li><em>&#x57FA;&#x4E8E;&#x5E03;&#x5C14;&#x503C;&#x63A7;&#x5236;</em>&#xFF1A;&#x8FD9;&#x79CD;&#x7C7B;&#x578B;&#x7684;&#x5B57;&#x6BB5;&#x9ED8;&#x8BA4;&#x4E3A;&#x6700;&#x4E25;&#x683C;&#x9650;&#x5236;&#x7684;&#x503C;&#x3002;</li>
<li><em>&#x57FA;&#x4E8E;&#x88AB;&#x5141;&#x8BB8;&#x7684;&#x503C;&#x96C6;&#x5408;&#x63A7;&#x5236;</em>&#xFF1A;&#x8FD9;&#x79CD;&#x7C7B;&#x578B;&#x7684;&#x5B57;&#x6BB5;&#x4F1A;&#x4E0E;&#x8FD9;&#x7EC4;&#x503C;&#x8FDB;&#x884C;&#x5BF9;&#x6BD4;&#xFF0C;&#x4EE5;&#x786E;&#x8BA4;&#x503C;&#x88AB;&#x5141;&#x8BB8;&#x3002;</li>
<li><em>&#x57FA;&#x4E8E;&#x7B56;&#x7565;&#x63A7;&#x5236;</em>&#xFF1A;&#x8BBE;&#x7F6E;&#x9879;&#x901A;&#x8FC7;&#x4E00;&#x79CD;&#x7B56;&#x7565;&#x63D0;&#x4F9B;&#x7684;&#x673A;&#x5236;&#x6765;&#x751F;&#x6210;&#x8BE5;&#x503C;&#xFF0C;&#x8FD9;&#x79CD;&#x673A;&#x5236;&#x80FD;&#x591F;&#x786E;&#x4FDD;&#x6307;&#x5B9A;&#x7684;&#x503C;&#x843D;&#x5728;&#x88AB;&#x5141;&#x8BB8;&#x7684;&#x8FD9;&#x7EC4;&#x503C;&#x4E2D;&#x3002;</li>
</ul>
<h3 id="runasuser">RunAsUser</h3>
<ul>
<li><em>MustRunAs</em> - &#x5FC5;&#x987B;&#x914D;&#x7F6E;&#x4E00;&#x4E2A; <code>range</code>&#x3002;&#x4F7F;&#x7528;&#x8BE5;&#x8303;&#x56F4;&#x5185;&#x7684;&#x7B2C;&#x4E00;&#x4E2A;&#x503C;&#x4F5C;&#x4E3A;&#x9ED8;&#x8BA4;&#x503C;&#x3002;&#x9A8C;&#x8BC1;&#x662F;&#x5426;&#x4E0D;&#x5728;&#x914D;&#x7F6E;&#x7684;&#x8BE5;&#x8303;&#x56F4;&#x5185;&#x3002;</li>
<li><em>MustRunAsNonRoot</em> - &#x8981;&#x6C42;&#x63D0;&#x4EA4;&#x7684; Pod &#x5177;&#x6709;&#x975E;&#x96F6; <code>runAsUser</code> &#x503C;&#xFF0C;&#x6216;&#x5728;&#x955C;&#x50CF;&#x4E2D;&#x5B9A;&#x4E49;&#x4E86; <code>USER</code> &#x73AF;&#x5883;&#x53D8;&#x91CF;&#x3002;&#x4E0D;&#x63D0;&#x4F9B;&#x9ED8;&#x8BA4;&#x503C;&#x3002;</li>
<li><em>RunAsAny</em> - &#x6CA1;&#x6709;&#x63D0;&#x4F9B;&#x9ED8;&#x8BA4;&#x503C;&#x3002;&#x5141;&#x8BB8;&#x6307;&#x5B9A;&#x4EFB;&#x4F55; <code>runAsUser</code> &#x3002;</li>
</ul>
<h3 id="selinux">SELinux</h3>
<ul>
<li><em>MustRunAs</em> - &#x5982;&#x679C;&#x6CA1;&#x6709;&#x4F7F;&#x7528;&#x9884;&#x5206;&#x914D;&#x7684;&#x503C;&#xFF0C;&#x5FC5;&#x987B;&#x914D;&#x7F6E; <code>seLinuxOptions</code>&#x3002;&#x9ED8;&#x8BA4;&#x4F7F;&#x7528; <code>seLinuxOptions</code>&#x3002;&#x9A8C;&#x8BC1; <code>seLinuxOptions</code>&#x3002;</li>
<li><em>RunAsAny</em> - &#x6CA1;&#x6709;&#x63D0;&#x4F9B;&#x9ED8;&#x8BA4;&#x503C;&#x3002;&#x5141;&#x8BB8;&#x4EFB;&#x610F;&#x6307;&#x5B9A;&#x7684; <code>seLinuxOptions</code> ID&#x3002;</li>
</ul>
<h3 id="supplementalgroups">SupplementalGroups</h3>
<ul>
<li><em>MustRunAs</em> - &#x81F3;&#x5C11;&#x9700;&#x8981;&#x6307;&#x5B9A;&#x4E00;&#x4E2A;&#x8303;&#x56F4;&#x3002;&#x9ED8;&#x8BA4;&#x4F7F;&#x7528;&#x7B2C;&#x4E00;&#x4E2A;&#x8303;&#x56F4;&#x7684;&#x6700;&#x5C0F;&#x503C;&#x3002;&#x9A8C;&#x8BC1;&#x6240;&#x6709;&#x8303;&#x56F4;&#x7684;&#x503C;&#x3002;</li>
<li><em>RunAsAny</em> - &#x6CA1;&#x6709;&#x63D0;&#x4F9B;&#x9ED8;&#x8BA4;&#x503C;&#x3002;&#x5141;&#x8BB8;&#x4EFB;&#x610F;&#x6307;&#x5B9A;&#x7684; <code>supplementalGroups</code> ID&#x3002;</li>
</ul>
<h3 id="fsgroup">FSGroup</h3>
<ul>
<li><em>MustRunAs</em> - &#x81F3;&#x5C11;&#x9700;&#x8981;&#x6307;&#x5B9A;&#x4E00;&#x4E2A;&#x8303;&#x56F4;&#x3002;&#x9ED8;&#x8BA4;&#x4F7F;&#x7528;&#x7B2C;&#x4E00;&#x4E2A;&#x8303;&#x56F4;&#x7684;&#x6700;&#x5C0F;&#x503C;&#x3002;&#x9A8C;&#x8BC1;&#x5728;&#x7B2C;&#x4E00;&#x4E2A;&#x8303;&#x56F4;&#x5185;&#x7684;&#x7B2C;&#x4E00;&#x4E2A; ID&#x3002;</li>
<li><em>RunAsAny</em> - &#x6CA1;&#x6709;&#x63D0;&#x4F9B;&#x9ED8;&#x8BA4;&#x503C;&#x3002;&#x5141;&#x8BB8;&#x4EFB;&#x610F;&#x6307;&#x5B9A;&#x7684; <code>fsGroup</code> ID&#x3002;</li>
</ul>
<h3 id="&#x63A7;&#x5236;&#x5377;">&#x63A7;&#x5236;&#x5377;</h3>
<p>&#x901A;&#x8FC7;&#x8BBE;&#x7F6E; PSP &#x5377;&#x5B57;&#x6BB5;&#xFF0C;&#x80FD;&#x591F;&#x63A7;&#x5236;&#x5177;&#x4F53;&#x5377;&#x7C7B;&#x578B;&#x7684;&#x4F7F;&#x7528;&#x3002;&#x5F53;&#x521B;&#x5EFA;&#x4E00;&#x4E2A;&#x5377;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x4E0E;&#x8BE5;&#x5B57;&#x6BB5;&#x76F8;&#x5173;&#x7684;&#x5DF2;&#x5B9A;&#x4E49;&#x5377;&#x53EF;&#x4EE5;&#x5141;&#x8BB8;&#x8BBE;&#x7F6E;&#x5982;&#x4E0B;&#x503C;&#xFF1A;</p>
<ol>
<li>azureFile</li>
<li>azureDisk</li>
<li>flocker</li>
<li>flexVolume</li>
<li>hostPath</li>
<li>emptyDir</li>
<li>gcePersistentDisk</li>
<li>awsElasticBlockStore</li>
<li>gitRepo</li>
<li>secret</li>
<li>nfs</li>
<li>iscsi</li>
<li>glusterfs</li>
<li>persistentVolumeClaim</li>
<li>rbd</li>
<li>cinder</li>
<li>cephFS</li>
<li>downwardAPI</li>
<li>fc</li>
<li>configMap</li>
<li>vsphereVolume</li>
<li>quobyte</li>
<li>photonPersistentDisk</li>
<li>projected</li>
<li>portworxVolume</li>
<li>scaleIO</li>
<li>storageos</li>
<li>* (allow all volumes)</li>
</ol>
<p>&#x5BF9;&#x65B0;&#x7684; PSP&#xFF0C;&#x63A8;&#x8350;&#x5141;&#x8BB8;&#x7684;&#x5377;&#x7684;&#x6700;&#x5C0F;&#x96C6;&#x5408;&#x5305;&#x62EC;&#xFF1A;configMap&#x3001;downwardAPI&#x3001;emptyDir&#x3001;persistentVolumeClaim&#x3001;secret &#x548C; projected&#x3002;</p>
<h3 id="&#x4E3B;&#x673A;&#x7F51;&#x7EDC;">&#x4E3B;&#x673A;&#x7F51;&#x7EDC;</h3>
<ul>
<li><em>HostPorts</em>&#xFF0C; &#x9ED8;&#x8BA4;&#x4E3A; <code>empty</code>&#x3002;<code>HostPortRange</code> &#x5217;&#x8868;&#x901A;&#x8FC7; <code>min</code>(&#x5305;&#x542B;) and <code>max</code>(&#x5305;&#x542B;) &#x6765;&#x5B9A;&#x4E49;&#xFF0C;&#x6307;&#x5B9A;&#x4E86;&#x88AB;&#x5141;&#x8BB8;&#x7684;&#x4E3B;&#x673A;&#x7AEF;&#x53E3;&#x3002;</li>
</ul>
<h3 id="&#x5141;&#x8BB8;&#x7684;&#x4E3B;&#x673A;&#x8DEF;&#x5F84;">&#x5141;&#x8BB8;&#x7684;&#x4E3B;&#x673A;&#x8DEF;&#x5F84;</h3>
<ul>
<li><em>AllowedHostPaths</em> &#x662F;&#x4E00;&#x4E2A;&#x88AB;&#x5141;&#x8BB8;&#x7684;&#x4E3B;&#x673A;&#x8DEF;&#x5F84;&#x524D;&#x7F00;&#x7684;&#x767D;&#x540D;&#x5355;&#x3002;&#x7A7A;&#x503C;&#x8868;&#x793A;&#x6240;&#x6709;&#x7684;&#x4E3B;&#x673A;&#x8DEF;&#x5F84;&#x90FD;&#x53EF;&#x4EE5;&#x4F7F;&#x7528;&#x3002;</li>
</ul>
<h2 id="&#x8BB8;&#x53EF;">&#x8BB8;&#x53EF;</h2>
<p>&#x5305;&#x542B; <code>PodSecurityPolicy</code> &#x7684; <em>&#x8BB8;&#x53EF;&#x63A7;&#x5236;</em>&#xFF0C;&#x5141;&#x8BB8;&#x63A7;&#x5236;&#x96C6;&#x7FA4;&#x8D44;&#x6E90;&#x7684;&#x521B;&#x5EFA;&#x548C;&#x4FEE;&#x6539;&#xFF0C;&#x57FA;&#x4E8E;&#x8FD9;&#x4E9B;&#x8D44;&#x6E90;&#x5728;&#x96C6;&#x7FA4;&#x8303;&#x56F4;&#x5185;&#x88AB;&#x8BB8;&#x53EF;&#x7684;&#x80FD;&#x529B;&#x3002;</p>
<p>&#x8BB8;&#x53EF;&#x4F7F;&#x7528;&#x5982;&#x4E0B;&#x7684;&#x65B9;&#x5F0F;&#x4E3A; Pod &#x521B;&#x5EFA;&#x6700;&#x7EC8;&#x7684;&#x5B89;&#x5168;&#x4E0A;&#x4E0B;&#x6587;&#xFF1A;</p>
<ol>
<li>&#x68C0;&#x7D22;&#x6240;&#x6709;&#x53EF;&#x7528;&#x7684; PSP&#x3002;</li>
<li>&#x751F;&#x6210;&#x5728;&#x8BF7;&#x6C42;&#x4E2D;&#x6CA1;&#x6709;&#x6307;&#x5B9A;&#x7684;&#x5B89;&#x5168;&#x4E0A;&#x4E0B;&#x6587;&#x8BBE;&#x7F6E;&#x7684;&#x5B57;&#x6BB5;&#x503C;&#x3002;</li>
<li>&#x57FA;&#x4E8E;&#x53EF;&#x7528;&#x7684;&#x7B56;&#x7565;&#xFF0C;&#x9A8C;&#x8BC1;&#x6700;&#x7EC8;&#x7684;&#x8BBE;&#x7F6E;&#x3002;</li>
</ol>
<p>&#x5982;&#x679C;&#x67D0;&#x4E2A;&#x7B56;&#x7565;&#x80FD;&#x591F;&#x5339;&#x914D;&#x4E0A;&#xFF0C;&#x8BE5; Pod &#x5C31;&#x88AB;&#x63A5;&#x53D7;&#x3002;&#x5982;&#x679C;&#x8BF7;&#x6C42;&#x4E0E; PSP &#x4E0D;&#x5339;&#x914D;&#xFF0C;&#x5219; Pod &#x88AB;&#x62D2;&#x7EDD;&#x3002;</p>
<p>Pod &#x5FC5;&#x987B;&#x57FA;&#x4E8E; PSP &#x9A8C;&#x8BC1;&#x6BCF;&#x4E2A;&#x5B57;&#x6BB5;&#x3002;</p>
<h2 id="&#x521B;&#x5EFA;-pod-&#x5B89;&#x5168;&#x7B56;&#x7565;">&#x521B;&#x5EFA; Pod &#x5B89;&#x5168;&#x7B56;&#x7565;</h2>
<p>&#x4E0B;&#x9762;&#x662F;&#x4E00;&#x4E2A; Pod &#x5B89;&#x5168;&#x7B56;&#x7565;&#x7684;&#x4F8B;&#x5B50;&#xFF0C;&#x6240;&#x6709;&#x5B57;&#x6BB5;&#x7684;&#x8BBE;&#x7F6E;&#x90FD;&#x88AB;&#x5141;&#x8BB8;&#xFF1A;</p>
<pre><code class="lang-Yaml"><span class="hljs-attr">apiVersion:</span> extensions/v1beta1
<span class="hljs-attr">kind:</span> PodSecurityPolicy
<span class="hljs-attr">metadata:</span>
<span class="hljs-attr"> name:</span> permissive
<span class="hljs-attr">spec:</span>
<span class="hljs-attr"> seLinux:</span>
<span class="hljs-attr"> rule:</span> RunAsAny
<span class="hljs-attr"> supplementalGroups:</span>
<span class="hljs-attr"> rule:</span> RunAsAny
<span class="hljs-attr"> runAsUser:</span>
<span class="hljs-attr"> rule:</span> RunAsAny
<span class="hljs-attr"> fsGroup:</span>
<span class="hljs-attr"> rule:</span> RunAsAny
<span class="hljs-attr"> hostPorts:</span>
<span class="hljs-attr"> - min:</span> <span class="hljs-number">8000</span>
<span class="hljs-attr"> max:</span> <span class="hljs-number">8080</span>
<span class="hljs-attr"> volumes:</span>
<span class="hljs-bullet"> -</span> <span class="hljs-string">&apos;*&apos;</span>
</code></pre>
<p>&#x4E0B;&#x8F7D;&#x793A;&#x4F8B;&#x6587;&#x4EF6;&#x53EF;&#x4EE5;&#x521B;&#x5EFA;&#x8BE5;&#x7B56;&#x7565;&#xFF0C;&#x7136;&#x540E;&#x6267;&#x884C;&#x5982;&#x4E0B;&#x547D;&#x4EE4;&#xFF1A;</p>
<pre><code class="lang-bash">$ kubectl create <span class="hljs-_">-f</span> ./psp.yaml
podsecuritypolicy <span class="hljs-string">&quot;permissive&quot;</span> created
</code></pre>
<h2 id="&#x83B7;&#x53D6;-pod-&#x5B89;&#x5168;&#x7B56;&#x7565;&#x5217;&#x8868;">&#x83B7;&#x53D6; Pod &#x5B89;&#x5168;&#x7B56;&#x7565;&#x5217;&#x8868;</h2>
<p>&#x83B7;&#x53D6;&#x5DF2;&#x5B58;&#x5728;&#x7B56;&#x7565;&#x5217;&#x8868;&#xFF0C;&#x4F7F;&#x7528; <code>kubectl get</code>&#xFF1A;</p>
<pre><code class="lang-bash">$ kubectl get psp
NAME PRIV CAPS SELINUX RUNASUSER FSGROUP SUPGROUP READONLYROOTFS VOLUMES
permissive <span class="hljs-literal">false</span> [] RunAsAny RunAsAny RunAsAny RunAsAny <span class="hljs-literal">false</span> [*]
privileged <span class="hljs-literal">true</span> [] RunAsAny RunAsAny RunAsAny RunAsAny <span class="hljs-literal">false</span> [*]
restricted <span class="hljs-literal">false</span> [] RunAsAny MustRunAsNonRoot RunAsAny RunAsAny <span class="hljs-literal">false</span> [emptyDir secret downwardAPI configMap persistentVolumeClaim projected]
</code></pre>
<h2 id="&#x4FEE;&#x6539;-pod-&#x5B89;&#x5168;&#x7B56;&#x7565;">&#x4FEE;&#x6539; Pod &#x5B89;&#x5168;&#x7B56;&#x7565;</h2>
<p>&#x901A;&#x8FC7;&#x4EA4;&#x4E92;&#x65B9;&#x5F0F;&#x4FEE;&#x6539;&#x7B56;&#x7565;&#xFF0C;&#x4F7F;&#x7528; <code>kubectl edit</code>&#xFF1A;</p>
<pre><code class="lang-bash">$ kubectl edit psp permissive
</code></pre>
<p>&#x8BE5;&#x547D;&#x4EE4;&#x5C06;&#x6253;&#x5F00;&#x4E00;&#x4E2A;&#x9ED8;&#x8BA4;&#x6587;&#x672C;&#x7F16;&#x8F91;&#x5668;&#xFF0C;&#x5728;&#x8FD9;&#x91CC;&#x80FD;&#x591F;&#x4FEE;&#x6539;&#x7B56;&#x7565;&#x3002;</p>
<h2 id="&#x5220;&#x9664;-pod-&#x5B89;&#x5168;&#x7B56;&#x7565;">&#x5220;&#x9664; Pod &#x5B89;&#x5168;&#x7B56;&#x7565;</h2>
<p>&#x4E00;&#x65E6;&#x4E0D;&#x518D;&#x9700;&#x8981;&#x4E00;&#x4E2A;&#x7B56;&#x7565;&#xFF0C;&#x5F88;&#x5BB9;&#x6613;&#x901A;&#x8FC7; <code>kubectl</code> &#x5220;&#x9664;&#x5B83;&#xFF1A;</p>
<pre><code class="lang-bash">$ kubectl delete psp permissive
podsecuritypolicy <span class="hljs-string">&quot;permissive&quot;</span> deleted
</code></pre>
<h2 id="&#x542F;&#x7528;-pod-&#x5B89;&#x5168;&#x7B56;&#x7565;">&#x542F;&#x7528; Pod &#x5B89;&#x5168;&#x7B56;&#x7565;</h2>
<p>&#x4E3A;&#x4E86;&#x80FD;&#x591F;&#x5728;&#x96C6;&#x7FA4;&#x4E2D;&#x4F7F;&#x7528; Pod &#x5B89;&#x5168;&#x7B56;&#x7565;&#xFF0C;&#x5FC5;&#x987B;&#x786E;&#x4FDD;&#x5982;&#x4E0B;&#xFF1A;</p>
<ol>
<li>&#x542F;&#x7528; API &#x7C7B;&#x578B; <code>extensions/v1beta1/podsecuritypolicy</code>&#xFF08;&#x4EC5;&#x5BF9; 1.6 &#x4E4B;&#x524D;&#x7684;&#x7248;&#x672C;&#xFF09;</li>
<li>&#x542F;&#x7528;&#x8BB8;&#x53EF;&#x63A7;&#x5236;&#x5668; <code>PodSecurityPolicy</code></li>
<li>&#x5B9A;&#x4E49;&#x81EA;&#x5DF1;&#x7684;&#x7B56;&#x7565;</li>
</ol>
<h2 id="&#x4F7F;&#x7528;-rbac">&#x4F7F;&#x7528; RBAC</h2>
<p>&#x5728; Kubernetes 1.5 &#x6216;&#x66F4;&#x65B0;&#x7248;&#x672C;&#xFF0C;&#x53EF;&#x4EE5;&#x4F7F;&#x7528; PodSecurityPolicy &#x6765;&#x63A7;&#x5236;&#xFF0C;&#x5BF9;&#x57FA;&#x4E8E;&#x7528;&#x6237;&#x89D2;&#x8272;&#x548C;&#x7EC4;&#x7684;&#x5DF2;&#x6388;&#x6743;&#x5BB9;&#x5668;&#x7684;&#x8BBF;&#x95EE;&#x3002;&#x8BBF;&#x95EE;&#x4E0D;&#x540C;&#x7684; PodSecurityPolicy &#x5BF9;&#x8C61;&#xFF0C;&#x53EF;&#x4EE5;&#x57FA;&#x4E8E;&#x8BA4;&#x8BC1;&#x6765;&#x63A7;&#x5236;&#x3002;&#x57FA;&#x4E8E; Deployment&#x3001;ReplicaSet &#x7B49;&#x521B;&#x5EFA;&#x7684; Pod&#xFF0C;&#x9650;&#x5236;&#x8BBF;&#x95EE; PodSecurityPolicy &#x5BF9;&#x8C61;&#xFF0C;<a href="https://kubernetes.io/docs/admin/kube-controller-manager/" target="_blank">Controller Manager</a> &#x5FC5;&#x987B;&#x57FA;&#x4E8E;&#x5B89;&#x5168; API &#x7AEF;&#x53E3;&#x8FD0;&#x884C;&#xFF0C;&#x5E76;&#x4E14;&#x4E0D;&#x80FD;&#x591F;&#x5177;&#x6709;&#x8D85;&#x7EA7;&#x7528;&#x6237;&#x6743;&#x9650;&#x3002;</p>
<p>PodSecurityPolicy &#x8BA4;&#x8BC1;&#x4F7F;&#x7528;&#x6240;&#x6709;&#x53EF;&#x7528;&#x7684;&#x7B56;&#x7565;&#xFF0C;&#x5305;&#x62EC;&#x521B;&#x5EFA; Pod &#x7684;&#x7528;&#x6237;&#xFF0C;Pod &#x4E0A;&#x6307;&#x5B9A;&#x7684;&#x670D;&#x52A1;&#x8D26;&#x6237;&#xFF08;service acount&#xFF09;&#x3002;&#x5F53; Pod &#x57FA;&#x4E8E; Deployment&#x3001;ReplicaSet &#x521B;&#x5EFA;&#x65F6;&#xFF0C;&#x5B83;&#x662F;&#x521B;&#x5EFA; Pod &#x7684; Controller Manager&#xFF0C;&#x6240;&#x4EE5;&#x5982;&#x679C;&#x57FA;&#x4E8E;&#x975E;&#x5B89;&#x5168; API &#x7AEF;&#x53E3;&#x8FD0;&#x884C;&#xFF0C;&#x5141;&#x8BB8;&#x6240;&#x6709;&#x7684; PodSecurityPolicy &#x5BF9;&#x8C61;&#xFF0C;&#x5E76;&#x4E14;&#x4E0D;&#x80FD;&#x591F;&#x6709;&#x6548;&#x5730;&#x5B9E;&#x73B0;&#x7EC6;&#x5206;&#x6743;&#x9650;&#x3002;&#x7528;&#x6237;&#x8BBF;&#x95EE;&#x7ED9;&#x5B9A;&#x7684; PSP &#x7B56;&#x7565;&#x6709;&#x6548;&#xFF0C;&#x4EC5;&#x5F53;&#x662F;&#x76F4;&#x63A5;&#x90E8;&#x7F72; Pod &#x7684;&#x60C5;&#x51B5;&#x3002;&#x66F4;&#x591A;&#x8BE6;&#x60C5;&#xFF0C;&#x67E5;&#x770B; <a href="https://git.k8s.io/kubernetes/examples/podsecuritypolicy/rbac/README.md" target="_blank">PodSecurityPolicy RBAC &#x793A;&#x4F8B;</a>&#xFF0C;&#x5F53;&#x76F4;&#x63A5;&#x90E8;&#x7F72; Pod &#x65F6;&#xFF0C;&#x5E94;&#x7528; PodSecurityPolicy &#x63A7;&#x5236;&#x57FA;&#x4E8E;&#x89D2;&#x8272;&#x548C;&#x7EC4;&#x7684;&#x5DF2;&#x6388;&#x6743;&#x5BB9;&#x5668;&#x7684;&#x8BBF;&#x95EE; &#x3002;</p>
<p>&#x539F;&#x6587;&#x5730;&#x5740;&#xFF1A;<a href="https://k8smeetup.github.io/docs/concepts/policy/pod-security-policy/" target="_blank">https://k8smeetup.github.io/docs/concepts/policy/pod-security-policy/</a></p>
2017-09-19 21:38:03 +08:00
<p>&#x8BD1;&#x8005;&#xFF1A;<a href="https://github.com/shirdrn" target="_blank">shirdrn</a></p>
<footer class="page-footer-ex"> <span class="page-footer-ex-copyright"> &#xA9; All Rights Reserved </span> &#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0; <span class="page-footer-ex-footer-update"> updated 2017-09-03 14:07:37 </span> </footer>
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