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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 资源对象配置
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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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3.1.3 Secret配置
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3.2 命令使用
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3.2.1 使用kubectl
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<li class="chapter " data-level="1.3.2.2" data-path="../guide/docker-cli-to-kubectl.html">
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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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<li class="chapter " data-level="1.3.3.1" data-path="../guide/managing-tls-in-a-cluster.html">
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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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<li class="chapter " data-level="1.3.4.1" data-path="../guide/access-cluster.html">
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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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<li class="chapter " data-level="1.3.4.3" data-path="../guide/connecting-to-applications-port-forward.html">
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3.4.3 通过端口转发访问集群中的应用程序
</a>
</li>
<li class="chapter " data-level="1.3.4.4" data-path="../guide/service-access-application-cluster.html">
<a href="../guide/service-access-application-cluster.html">
3.4.4 使用 service 访问群集中的应用程序
</a>
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</ul>
</li>
<li class="chapter " data-level="1.3.5" data-path="../guide/application-development-deployment-flow.html">
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3.5 在kubernetes中开发部署应用
</a>
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<li class="chapter " data-level="1.3.5.1" data-path="../guide/deploy-applications-in-kubernetes.html">
<a href="../guide/deploy-applications-in-kubernetes.html">
3.5.1 适用于kubernetes的应用开发部署流程
</a>
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<li class="chapter " data-level="1.3.5.2" data-path="../guide/migrating-hadoop-yarn-to-kubernetes.html">
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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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<li class="chapter " data-level="1.4.1" data-path="../practice/install-kbernetes1.6-on-centos.html">
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4.1 在CentOS上部署kubernetes1.6集群
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<ul class="articles">
<li class="chapter " data-level="1.4.1.1" data-path="../practice/create-tls-and-secret-key.html">
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4.1.1 创建TLS证书和秘钥
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</li>
<li class="chapter " data-level="1.4.1.2" data-path="../practice/create-kubeconfig.html">
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4.1.2 创建kubeconfig文件
</a>
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<li class="chapter " data-level="1.4.1.3" data-path="../practice/etcd-cluster-installation.html">
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4.1.3 创建高可用etcd集群
</a>
</li>
<li class="chapter " data-level="1.4.1.4" data-path="../practice/kubectl-installation.html">
<a href="../practice/kubectl-installation.html">
4.1.4 安装kubectl命令行工具
</a>
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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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<li class="chapter " data-level="1.4.1.6" data-path="../practice/node-installation.html">
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4.1.6 部署node节点
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<li class="chapter " data-level="1.4.1.7" data-path="../practice/kubedns-addon-installation.html">
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4.1.7 安装kubedns插件
</a>
</li>
<li class="chapter " data-level="1.4.1.8" data-path="../practice/dashboard-addon-installation.html">
<a href="../practice/dashboard-addon-installation.html">
4.1.8 安装dashboard插件
</a>
</li>
<li class="chapter " data-level="1.4.1.9" data-path="../practice/heapster-addon-installation.html">
<a href="../practice/heapster-addon-installation.html">
4.1.9 安装heapster插件
</a>
</li>
<li class="chapter " data-level="1.4.1.10" data-path="../practice/efk-addon-installation.html">
<a href="../practice/efk-addon-installation.html">
4.1.10 安装EFK插件
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="1.4.2" 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
</a>
<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
</a>
</li>
<li class="chapter " data-level="1.4.2.2" data-path="../practice/distributed-load-test.html">
<a href="../practice/distributed-load-test.html">
4.2.2 分布式负载测试
</a>
</li>
<li class="chapter " data-level="1.4.2.3" data-path="../practice/network-and-cluster-perfermance-test.html">
<a href="../practice/network-and-cluster-perfermance-test.html">
4.2.3 网络和集群性能测试
</a>
</li>
<li class="chapter " data-level="1.4.2.4" data-path="../practice/edge-node-configuration.html">
<a href="../practice/edge-node-configuration.html">
4.2.4 边缘节点配置
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="1.4.3" data-path="../practice/operation.html">
<a href="../practice/operation.html">
4.3 运维管理
</a>
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<li class="chapter " data-level="1.4.3.1" data-path="../practice/service-rolling-update.html">
<a href="../practice/service-rolling-update.html">
4.3.1 服务滚动升级
</a>
</li>
<li class="chapter " data-level="1.4.3.2" data-path="../practice/app-log-collection.html">
<a href="../practice/app-log-collection.html">
4.3.2 应用日志收集
</a>
</li>
<li class="chapter " data-level="1.4.3.3" data-path="../practice/configuration-best-practice.html">
<a href="../practice/configuration-best-practice.html">
4.3.3 配置最佳实践
</a>
</li>
<li class="chapter " data-level="1.4.3.4" data-path="../practice/monitor.html">
<a href="../practice/monitor.html">
4.3.4 集群及应用监控
</a>
</li>
<li class="chapter " data-level="1.4.3.5" 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
</a>
</li>
<li class="chapter " data-level="1.4.3.6" data-path="../practice/data-persistence-problem.html">
<a href="../practice/data-persistence-problem.html">
4.3.6 数据持久化问题
</a>
</li>
<li class="chapter " data-level="1.4.3.7" 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
</a>
</li>
<li class="chapter " data-level="1.4.3.8" data-path="../practice/using-prometheus-to-monitor-kuberentes-cluster.html">
<a href="../practice/using-prometheus-to-monitor-kuberentes-cluster.html">
4.3.8 使用Prometheus监控kubernetes集群
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="1.4.4" data-path="../practice/storage.html">
<a href="../practice/storage.html">
4.4 存储管理
</a>
<ul class="articles">
<li class="chapter " data-level="1.4.4.1" data-path="../practice/glusterfs.html">
<a href="../practice/glusterfs.html">
4.4.1 GlusterFS
</a>
<ul class="articles">
<li class="chapter " data-level="1.4.4.1.1" 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
</a>
</li>
<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
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="1.4.4.2" data-path="../practice/cephfs.html">
<a href="../practice/cephfs.html">
4.4.2 CephFS
</a>
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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
</a>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
<li class="chapter " data-level="1.5" data-path="../usecases/">
<a href="../usecases/">
5. 领域应用
</a>
<ul class="articles">
<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
</a>
<ul class="articles">
<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
</a>
</li>
</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
</a>
<ul class="articles">
<li class="chapter " data-level="1.5.2.1" data-path="../usecases/istio.html">
<a href="../usecases/istio.html">
5.1.1 Istio
</a>
<ul class="articles">
<li class="chapter " data-level="1.5.2.1.1" data-path="../usecases/istio-installation.html">
<a href="../usecases/istio-installation.html">
5.1.1.1 安装istio
</a>
</li>
<li class="chapter " data-level="1.5.2.1.2" data-path="../usecases/configuring-request-routing.html">
<a href="../usecases/configuring-request-routing.html">
5.1.1.2 配置请求的路由规则
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="1.5.2.2" data-path="../usecases/linkerd.html">
<a href="../usecases/linkerd.html">
5.1.2 Linkerd
</a>
<ul class="articles">
<li class="chapter " data-level="1.5.2.2.1" data-path="../usecases/linkerd-user-guide.html">
<a href="../usecases/linkerd-user-guide.html">
5.1.2.1 Linkerd 使用指南
</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="chapter " data-level="1.5.3" data-path="../usecases/big-data.html">
<a href="../usecases/big-data.html">
5.2 大数据
</a>
<ul class="articles">
<li class="chapter " data-level="1.5.3.1" data-path="../usecases/spark-standalone-on-kubernetes.html">
<a href="../usecases/spark-standalone-on-kubernetes.html">
5.2.1 Spark standalone on Kubernetes
</a>
</li>
<li class="chapter " data-level="1.5.3.2" data-path="../usecases/running-spark-with-kubernetes-native-scheduler.html">
<a href="../usecases/running-spark-with-kubernetes-native-scheduler.html">
5.2.2 运行支持kubernetes原生调度的Spark程序
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="1.5.4" data-path="../usecases/serverless.html">
<a href="../usecases/serverless.html">
5.3 Serverless架构
</a>
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</ul>
</li>
<li class="chapter " data-level="1.6" data-path="../develop/">
<a href="../develop/">
6. 开发指南
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<li class="chapter " data-level="1.6.1" data-path="../develop/developing-environment.html">
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7.2 问题记录
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7.3 使用技巧
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7.4 kubernetes service中的故障排查
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<a href=".." >2.2.6 Deployment</a>
</h1>
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<h1 id="deployment">Deployment</h1>
<p>[TOC]</p>
<h2 id="&#x7B80;&#x8FF0;">&#x7B80;&#x8FF0;</h2>
<p>Deployment &#x4E3A; Pod &#x548C; ReplicaSet &#x63D0;&#x4F9B;&#x4E86;&#x4E00;&#x4E2A;&#x58F0;&#x660E;&#x5F0F;&#x5B9A;&#x4E49;(declarative)&#x65B9;&#x6CD5;&#xFF0C;&#x7528;&#x6765;&#x66FF;&#x4EE3;&#x4EE5;&#x524D;&#x7684;ReplicationController &#x6765;&#x65B9;&#x4FBF;&#x7684;&#x7BA1;&#x7406;&#x5E94;&#x7528;&#x3002;&#x5178;&#x578B;&#x7684;&#x5E94;&#x7528;&#x573A;&#x666F;&#x5305;&#x62EC;&#xFF1A;</p>
<ul>
<li>&#x5B9A;&#x4E49;Deployment&#x6765;&#x521B;&#x5EFA;Pod&#x548C;ReplicaSet</li>
<li>&#x6EDA;&#x52A8;&#x5347;&#x7EA7;&#x548C;&#x56DE;&#x6EDA;&#x5E94;&#x7528;</li>
<li>&#x6269;&#x5BB9;&#x548C;&#x7F29;&#x5BB9;</li>
<li>&#x6682;&#x505C;&#x548C;&#x7EE7;&#x7EED;Deployment</li>
</ul>
<p>&#x6BD4;&#x5982;&#x4E00;&#x4E2A;&#x7B80;&#x5355;&#x7684;nginx&#x5E94;&#x7528;&#x53EF;&#x4EE5;&#x5B9A;&#x4E49;&#x4E3A;</p>
<pre><code class="lang-yaml"><span class="hljs-attr">apiVersion:</span> extensions/v1beta1
<span class="hljs-attr">kind:</span> Deployment
<span class="hljs-attr">metadata:</span>
<span class="hljs-attr"> name:</span> nginx-deployment
<span class="hljs-attr">spec:</span>
<span class="hljs-attr"> replicas:</span> <span class="hljs-number">3</span>
<span class="hljs-attr"> template:</span>
<span class="hljs-attr"> metadata:</span>
<span class="hljs-attr"> labels:</span>
<span class="hljs-attr"> app:</span> nginx
<span class="hljs-attr"> spec:</span>
<span class="hljs-attr"> containers:</span>
<span class="hljs-attr"> - name:</span> nginx
<span class="hljs-attr"> image:</span> nginx:<span class="hljs-number">1.7</span><span class="hljs-number">.9</span>
<span class="hljs-attr"> ports:</span>
<span class="hljs-attr"> - containerPort:</span> <span class="hljs-number">80</span>
</code></pre>
<p>&#x6269;&#x5BB9;&#xFF1A;</p>
<pre><code>kubectl scale deployment nginx-deployment --replicas 10
</code></pre><p>&#x5982;&#x679C;&#x96C6;&#x7FA4;&#x652F;&#x6301; horizontal pod autoscaling &#x7684;&#x8BDD;&#xFF0C;&#x8FD8;&#x53EF;&#x4EE5;&#x4E3A;Deployment&#x8BBE;&#x7F6E;&#x81EA;&#x52A8;&#x6269;&#x5C55;&#xFF1A;</p>
<pre><code>kubectl autoscale deployment nginx-deployment --min=10 --max=15 --cpu-percent=80
</code></pre><p>&#x66F4;&#x65B0;&#x955C;&#x50CF;&#x4E5F;&#x6BD4;&#x8F83;&#x7B80;&#x5355;:</p>
<pre><code>kubectl set image deployment/nginx-deployment nginx=nginx:1.9.1
</code></pre><p>&#x56DE;&#x6EDA;&#xFF1A;</p>
<pre><code>kubectl rollout undo deployment/nginx-deployment
</code></pre><h2 id="deployment-&#x7ED3;&#x6784;&#x793A;&#x610F;&#x56FE;">Deployment &#x7ED3;&#x6784;&#x793A;&#x610F;&#x56FE;</h2>
<p>&#x53C2;&#x8003;&#xFF1A;<a href="https://kubernetes.io/docs/api-reference/v1.6/#deploymentspec-v1beta1-apps" target="_blank">https://kubernetes.io/docs/api-reference/v1.6/#deploymentspec-v1beta1-apps</a></p>
<figure id="fig1.2.2.6.1"><img src="../images/deployment-cheatsheet.png" alt="kubernetes deployment cheatsheet"><figcaption>Figure: kubernetes deployment cheatsheet</figcaption></figure>
<h2 id="deployment-&#x6982;&#x5FF5;&#x8BE6;&#x7EC6;&#x89E3;&#x6790;">Deployment &#x6982;&#x5FF5;&#x8BE6;&#x7EC6;&#x89E3;&#x6790;</h2>
<p>&#x672C;&#x6587;&#x7FFB;&#x8BD1;&#x81EA;kubernetes&#x5B98;&#x65B9;&#x6587;&#x6863;&#xFF1A;<a href="https://kubernetes.io/docs/concepts/workloads/controllers/deployment.md" target="_blank">https://kubernetes.io/docs/concepts/workloads/controllers/deployment.md</a></p>
<p>&#x6839;&#x636E;2017&#x5E74;5&#x6708;10&#x65E5;&#x7684;Commit 8481c02 &#x7FFB;&#x8BD1;&#x3002;</p>
<h2 id="deployment-&#x662F;&#x4EC0;&#x4E48;&#xFF1F;">Deployment &#x662F;&#x4EC0;&#x4E48;&#xFF1F;</h2>
<p>Deployment&#x4E3A;Pod&#x548C;Replica Set&#xFF08;&#x4E0B;&#x4E00;&#x4EE3;Replication Controller&#xFF09;&#x63D0;&#x4F9B;&#x58F0;&#x660E;&#x5F0F;&#x66F4;&#x65B0;&#x3002;</p>
<p>&#x60A8;&#x53EA;&#x9700;&#x8981;&#x5728; Deployment &#x4E2D;&#x63CF;&#x8FF0;&#x60A8;&#x60F3;&#x8981;&#x7684;&#x76EE;&#x6807;&#x72B6;&#x6001;&#x662F;&#x4EC0;&#x4E48;&#xFF0C;Deployment controller &#x5C31;&#x4F1A;&#x5E2E;&#x60A8;&#x5C06; Pod &#x548C;ReplicaSet &#x7684;&#x5B9E;&#x9645;&#x72B6;&#x6001;&#x6539;&#x53D8;&#x5230;&#x60A8;&#x7684;&#x76EE;&#x6807;&#x72B6;&#x6001;&#x3002;&#x60A8;&#x53EF;&#x4EE5;&#x5B9A;&#x4E49;&#x4E00;&#x4E2A;&#x5168;&#x65B0;&#x7684; Deployment &#x6765;&#x521B;&#x5EFA; ReplicaSet &#x6216;&#x8005;&#x5220;&#x9664;&#x5DF2;&#x6709;&#x7684; Deployment &#x5E76;&#x521B;&#x5EFA;&#x4E00;&#x4E2A;&#x65B0;&#x7684;&#x6765;&#x66FF;&#x6362;&#x3002;</p>
<p><strong>&#x6CE8;&#x610F;</strong>&#xFF1A;&#x60A8;&#x4E0D;&#x8BE5;&#x624B;&#x52A8;&#x7BA1;&#x7406;&#x7531; Deployment &#x521B;&#x5EFA;&#x7684; ReplicaSet&#xFF0C;&#x5426;&#x5219;&#x60A8;&#x5C31;&#x7BE1;&#x8D8A;&#x4E86; Deployment controller &#x7684;&#x804C;&#x8D23;&#xFF01;&#x4E0B;&#x6587;&#x7F57;&#x5217;&#x4E86; Deployment &#x5BF9;&#x8C61;&#x4E2D;&#x5DF2;&#x7ECF;&#x8986;&#x76D6;&#x4E86;&#x6240;&#x6709;&#x7684;&#x7528;&#x4F8B;&#x3002;&#x5982;&#x679C;&#x672A;&#x6709;&#x8986;&#x76D6;&#x60A8;&#x6240;&#x6709;&#x9700;&#x8981;&#x7684;&#x7528;&#x4F8B;&#xFF0C;&#x8BF7;&#x76F4;&#x63A5;&#x5728; Kubernetes &#x7684;&#x4EE3;&#x7801;&#x5E93;&#x4E2D;&#x63D0; issue&#x3002;</p>
<p>&#x5178;&#x578B;&#x7684;&#x7528;&#x4F8B;&#x5982;&#x4E0B;&#xFF1A;</p>
<ul>
<li>&#x4F7F;&#x7528;Deployment&#x6765;&#x521B;&#x5EFA;ReplicaSet&#x3002;ReplicaSet&#x5728;&#x540E;&#x53F0;&#x521B;&#x5EFA;pod&#x3002;&#x68C0;&#x67E5;&#x542F;&#x52A8;&#x72B6;&#x6001;&#xFF0C;&#x770B;&#x5B83;&#x662F;&#x6210;&#x529F;&#x8FD8;&#x662F;&#x5931;&#x8D25;&#x3002;</li>
<li>&#x7136;&#x540E;&#xFF0C;&#x901A;&#x8FC7;&#x66F4;&#x65B0;Deployment&#x7684;PodTemplateSpec&#x5B57;&#x6BB5;&#x6765;&#x58F0;&#x660E;Pod&#x7684;&#x65B0;&#x72B6;&#x6001;&#x3002;&#x8FD9;&#x4F1A;&#x521B;&#x5EFA;&#x4E00;&#x4E2A;&#x65B0;&#x7684;ReplicaSet&#xFF0C;Deployment&#x4F1A;&#x6309;&#x7167;&#x63A7;&#x5236;&#x7684;&#x901F;&#x7387;&#x5C06;pod&#x4ECE;&#x65E7;&#x7684;ReplicaSet&#x79FB;&#x52A8;&#x5230;&#x65B0;&#x7684;ReplicaSet&#x4E2D;&#x3002;</li>
<li>&#x5982;&#x679C;&#x5F53;&#x524D;&#x72B6;&#x6001;&#x4E0D;&#x7A33;&#x5B9A;&#xFF0C;&#x56DE;&#x6EDA;&#x5230;&#x4E4B;&#x524D;&#x7684;Deployment revision&#x3002;&#x6BCF;&#x6B21;&#x56DE;&#x6EDA;&#x90FD;&#x4F1A;&#x66F4;&#x65B0;Deployment&#x7684;revision&#x3002;</li>
<li>&#x6269;&#x5BB9;Deployment&#x4EE5;&#x6EE1;&#x8DB3;&#x66F4;&#x9AD8;&#x7684;&#x8D1F;&#x8F7D;&#x3002;</li>
<li>&#x6682;&#x505C;Deployment&#x6765;&#x5E94;&#x7528;PodTemplateSpec&#x7684;&#x591A;&#x4E2A;&#x4FEE;&#x590D;&#xFF0C;&#x7136;&#x540E;&#x6062;&#x590D;&#x4E0A;&#x7EBF;&#x3002;</li>
<li>&#x6839;&#x636E;Deployment &#x7684;&#x72B6;&#x6001;&#x5224;&#x65AD;&#x4E0A;&#x7EBF;&#x662F;&#x5426;hang&#x4F4F;&#x4E86;&#x3002;</li>
<li>&#x6E05;&#x9664;&#x65E7;&#x7684;&#x4E0D;&#x5FC5;&#x8981;&#x7684; ReplicaSet&#x3002;</li>
</ul>
<h2 id="&#x521B;&#x5EFA;-deployment">&#x521B;&#x5EFA; Deployment</h2>
<p>&#x4E0B;&#x9762;&#x662F;&#x4E00;&#x4E2A; Deployment &#x793A;&#x4F8B;&#xFF0C;&#x5B83;&#x521B;&#x5EFA;&#x4E86;&#x4E00;&#x4E2A; ReplicaSet &#x6765;&#x542F;&#x52A8;3&#x4E2A; nginx pod&#x3002;</p>
<p>&#x4E0B;&#x8F7D;&#x793A;&#x4F8B;&#x6587;&#x4EF6;&#x5E76;&#x6267;&#x884C;&#x547D;&#x4EE4;&#xFF1A;</p>
<pre><code class="lang-shell">$ kubectl create -f https://kubernetes.io/docs/user-guide/nginx-deployment.yaml --record
deployment &quot;nginx-deployment&quot; created
</code></pre>
<p>&#x5C06;kubectl&#x7684; <code>--record</code> &#x7684; flag &#x8BBE;&#x7F6E;&#x4E3A; <code>true</code>&#x53EF;&#x4EE5;&#x5728; annotation &#x4E2D;&#x8BB0;&#x5F55;&#x5F53;&#x524D;&#x547D;&#x4EE4;&#x521B;&#x5EFA;&#x6216;&#x8005;&#x5347;&#x7EA7;&#x4E86;&#x8BE5;&#x8D44;&#x6E90;&#x3002;&#x8FD9;&#x5728;&#x672A;&#x6765;&#x4F1A;&#x5F88;&#x6709;&#x7528;&#xFF0C;&#x4F8B;&#x5982;&#xFF0C;&#x67E5;&#x770B;&#x5728;&#x6BCF;&#x4E2A; Deployment revision &#x4E2D;&#x6267;&#x884C;&#x4E86;&#x54EA;&#x4E9B;&#x547D;&#x4EE4;&#x3002;</p>
<p>&#x7136;&#x540E;&#x7ACB;&#x5373;&#x6267;&#x884C; <code>get</code> &#x5C06;&#x83B7;&#x5F97;&#x5982;&#x4E0B;&#x7ED3;&#x679C;&#xFF1A;</p>
<pre><code class="lang-shell">$ kubectl get deployments
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE
nginx-deployment 3 0 0 0 1s
</code></pre>
<p>&#x8F93;&#x51FA;&#x7ED3;&#x679C;&#x8868;&#x660E;&#x6211;&#x4EEC;&#x5E0C;&#x671B;&#x7684;repalica&#x6570;&#x662F;3&#xFF08;&#x6839;&#x636E;deployment&#x4E2D;&#x7684;<code>.spec.replicas</code>&#x914D;&#x7F6E;&#xFF09;&#x5F53;&#x524D;replica&#x6570;&#xFF08; <code>.status.replicas</code>&#xFF09;&#x662F;0, &#x6700;&#x65B0;&#x7684;replica&#x6570;&#xFF08;<code>.status.updatedReplicas</code>&#xFF09;&#x662F;0&#xFF0C;&#x53EF;&#x7528;&#x7684;replica&#x6570;&#xFF08;<code>.status.availableReplicas</code>&#xFF09;&#x662F;0&#x3002;</p>
<p>&#x8FC7;&#x51E0;&#x79D2;&#x540E;&#x518D;&#x6267;&#x884C;<code>get</code>&#x547D;&#x4EE4;&#xFF0C;&#x5C06;&#x83B7;&#x5F97;&#x5982;&#x4E0B;&#x8F93;&#x51FA;&#xFF1A;</p>
<pre><code class="lang-shell">$ kubectl get deployments
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE
nginx-deployment 3 3 3 3 18s
</code></pre>
<p>&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x770B;&#x5230;Deployment&#x5DF2;&#x7ECF;&#x521B;&#x5EFA;&#x4E86;3&#x4E2A; replica&#xFF0C;&#x6240;&#x6709;&#x7684; replica &#x90FD;&#x5DF2;&#x7ECF;&#x662F;&#x6700;&#x65B0;&#x7684;&#x4E86;&#xFF08;&#x5305;&#x542B;&#x6700;&#x65B0;&#x7684;pod template&#xFF09;&#xFF0C;&#x53EF;&#x7528;&#x7684;&#xFF08;&#x6839;&#x636E;Deployment&#x4E2D;&#x7684;<code>.spec.minReadySeconds</code>&#x58F0;&#x660E;&#xFF0C;&#x5904;&#x4E8E;&#x5DF2;&#x5C31;&#x7EEA;&#x72B6;&#x6001;&#x7684;pod&#x7684;&#x6700;&#x5C11;&#x4E2A;&#x6570;&#xFF09;&#x3002;&#x6267;&#x884C;<code>kubectl get rs</code>&#x548C;<code>kubectl get pods</code>&#x4F1A;&#x663E;&#x793A;Replica Set&#xFF08;RS&#xFF09;&#x548C;Pod&#x5DF2;&#x521B;&#x5EFA;&#x3002;</p>
<pre><code class="lang-shell">$ kubectl get rs
NAME DESIRED CURRENT READY AGE
nginx-deployment-2035384211 3 3 0 18s
</code></pre>
<p>&#x60A8;&#x53EF;&#x80FD;&#x4F1A;&#x6CE8;&#x610F;&#x5230; ReplicaSet &#x7684;&#x540D;&#x5B57;&#x603B;&#x662F;<code>&lt;Deployment&#x7684;&#x540D;&#x5B57;&gt;-&lt;pod template&#x7684;hash&#x503C;&gt;</code>&#x3002;</p>
<pre><code class="lang-shell">$ kubectl get pods --show-labels
NAME READY STATUS RESTARTS AGE LABELS
nginx-deployment-2035384211-7ci7o 1/1 Running 0 18s app=nginx,pod-template-hash=2035384211
nginx-deployment-2035384211-kzszj 1/1 Running 0 18s app=nginx,pod-template-hash=2035384211
nginx-deployment-2035384211-qqcnn 1/1 Running 0 18s app=nginx,pod-template-hash=2035384211
</code></pre>
<p>&#x521A;&#x521B;&#x5EFA;&#x7684;Replica Set&#x5C06;&#x4FDD;&#x8BC1;&#x603B;&#x662F;&#x6709;3&#x4E2A; nginx &#x7684; pod &#x5B58;&#x5728;&#x3002;</p>
<p><strong>&#x6CE8;&#x610F;&#xFF1A;</strong> &#x60A8;&#x5FC5;&#x987B;&#x5728; Deployment &#x4E2D;&#x7684; selector &#x6307;&#x5B9A;&#x6B63;&#x786E;&#x7684; pod template label&#xFF08;&#x5728;&#x8BE5;&#x793A;&#x4F8B;&#x4E2D;&#x662F; <code>app = nginx</code>&#xFF09;&#xFF0C;&#x4E0D;&#x8981;&#x8DDF;&#x5176;&#x4ED6;&#x7684; controller &#x7684; selector &#x4E2D;&#x6307;&#x5B9A;&#x7684; pod template label &#x641E;&#x6DF7;&#x4E86;&#xFF08;&#x5305;&#x62EC; Deployment&#x3001;Replica Set&#x3001;Replication Controller &#x7B49;&#xFF09;&#x3002;<strong>Kubernetes &#x672C;&#x8EAB;&#x5E76;&#x4E0D;&#x4F1A;&#x963B;&#x6B62;&#x60A8;&#x4EFB;&#x610F;&#x6307;&#x5B9A; pod template label </strong>&#xFF0C;&#x4F46;&#x662F;&#x5982;&#x679C;&#x60A8;&#x771F;&#x7684;&#x8FD9;&#x4E48;&#x505A;&#x4E86;&#xFF0C;&#x8FD9;&#x4E9B; controller &#x4E4B;&#x95F4;&#x4F1A;&#x76F8;&#x4E92;&#x6253;&#x67B6;&#xFF0C;&#x5E76;&#x53EF;&#x80FD;&#x5BFC;&#x81F4;&#x4E0D;&#x6B63;&#x786E;&#x7684;&#x884C;&#x4E3A;&#x3002;</p>
<h3 id="pod-template-hash-label">Pod-template-hash label</h3>
<p><strong>&#x6CE8;&#x610F;</strong>&#xFF1A;&#x8FD9;&#x4E2A; label &#x4E0D;&#x662F;&#x7528;&#x6237;&#x6307;&#x5B9A;&#x7684;&#xFF01;</p>
<p>&#x6CE8;&#x610F;&#x4E0A;&#x9762;&#x793A;&#x4F8B;&#x8F93;&#x51FA;&#x4E2D;&#x7684; pod label &#x91CC;&#x7684; pod-template-hash label&#x3002;&#x5F53; Deployment &#x521B;&#x5EFA;&#x6216;&#x8005;&#x63A5;&#x7BA1; ReplicaSet &#x65F6;&#xFF0C;Deployment controller &#x4F1A;&#x81EA;&#x52A8;&#x4E3A; Pod &#x6DFB;&#x52A0; pod-template-hash label&#x3002;&#x8FD9;&#x6837;&#x505A;&#x7684;&#x76EE;&#x7684;&#x662F;&#x9632;&#x6B62; Deployment &#x7684;&#x5B50;ReplicaSet &#x7684; pod &#x540D;&#x5B57;&#x91CD;&#x590D;&#x3002;&#x901A;&#x8FC7;&#x5C06; ReplicaSet &#x7684; PodTemplate &#x8FDB;&#x884C;&#x54C8;&#x5E0C;&#x6563;&#x5217;&#xFF0C;&#x4F7F;&#x7528;&#x751F;&#x6210;&#x7684;&#x54C8;&#x5E0C;&#x503C;&#x4F5C;&#x4E3A; label &#x7684;&#x503C;&#xFF0C;&#x5E76;&#x6DFB;&#x52A0;&#x5230; ReplicaSet selector &#x91CC;&#x3001; pod template label &#x548C; ReplicaSet &#x7BA1;&#x7406;&#x4E2D;&#x7684; Pod &#x4E0A;&#x3002;</p>
<h2 id="&#x66F4;&#x65B0;deployment">&#x66F4;&#x65B0;Deployment</h2>
<p><strong>&#x6CE8;&#x610F;&#xFF1A;</strong> Deployment &#x7684; rollout &#x5F53;&#x4E14;&#x4EC5;&#x5F53; Deployment &#x7684; pod template&#xFF08;&#x4F8B;&#x5982;<code>.spec.template</code>&#xFF09;&#x4E2D;&#x7684;label&#x66F4;&#x65B0;&#x6216;&#x8005;&#x955C;&#x50CF;&#x66F4;&#x6539;&#x65F6;&#x88AB;&#x89E6;&#x53D1;&#x3002;&#x5176;&#x4ED6;&#x66F4;&#x65B0;&#xFF0C;&#x4F8B;&#x5982;&#x6269;&#x5BB9;Deployment&#x4E0D;&#x4F1A;&#x89E6;&#x53D1; rollout&#x3002;</p>
<p>&#x5047;&#x5982;&#x6211;&#x4EEC;&#x73B0;&#x5728;&#x60F3;&#x8981;&#x8BA9; nginx pod &#x4F7F;&#x7528;<code>nginx:1.9.1</code>&#x7684;&#x955C;&#x50CF;&#x6765;&#x4EE3;&#x66FF;&#x539F;&#x6765;&#x7684;<code>nginx:1.7.9</code>&#x7684;&#x955C;&#x50CF;&#x3002;</p>
<pre><code class="lang-shell">$ kubectl set image deployment/nginx-deployment nginx=nginx:1.9.1
deployment &quot;nginx-deployment&quot; image updated
</code></pre>
<p>&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x4F7F;&#x7528;<code>edit</code>&#x547D;&#x4EE4;&#x6765;&#x7F16;&#x8F91; Deployment&#xFF0C;&#x4FEE;&#x6539; <code>.spec.template.spec.containers[0].image</code> &#xFF0C;&#x5C06;<code>nginx:1.7.9</code> &#x6539;&#x5199;&#x6210; <code>nginx:1.9.1</code>&#x3002;</p>
<pre><code class="lang-shell">$ kubectl edit deployment/nginx-deployment
deployment &quot;nginx-deployment&quot; edited
</code></pre>
<p>&#x67E5;&#x770B; rollout &#x7684;&#x72B6;&#x6001;&#xFF0C;&#x53EA;&#x8981;&#x6267;&#x884C;&#xFF1A;</p>
<pre><code class="lang-shell">$ kubectl rollout status deployment/nginx-deployment
Waiting for rollout to finish: 2 out of 3 new replicas have been updated...
deployment &quot;nginx-deployment&quot; successfully rolled out
</code></pre>
<p>Rollout &#x6210;&#x529F;&#x540E;&#xFF0C;<code>get</code> Deployment&#xFF1A;</p>
<pre><code class="lang-shell">$ kubectl get deployments
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE
nginx-deployment 3 3 3 3 36s
</code></pre>
<p>UP-TO-DATE &#x7684; replica &#x7684;&#x6570;&#x76EE;&#x5DF2;&#x7ECF;&#x8FBE;&#x5230;&#x4E86;&#x914D;&#x7F6E;&#x4E2D;&#x8981;&#x6C42;&#x7684;&#x6570;&#x76EE;&#x3002;</p>
<p>CURRENT &#x7684; replica &#x6570;&#x8868;&#x793A; Deployment &#x7BA1;&#x7406;&#x7684; replica &#x6570;&#x91CF;&#xFF0C;AVAILABLE &#x7684; replica &#x6570;&#x662F;&#x5F53;&#x524D;&#x53EF;&#x7528;&#x7684;replica&#x6570;&#x91CF;&#x3002;</p>
<p>&#x6211;&#x4EEC;&#x901A;&#x8FC7;&#x6267;&#x884C;<code>kubectl get rs</code>&#x53EF;&#x4EE5;&#x770B;&#x5230; Deployment &#x66F4;&#x65B0;&#x4E86;Pod&#xFF0C;&#x901A;&#x8FC7;&#x521B;&#x5EFA;&#x4E00;&#x4E2A;&#x65B0;&#x7684; ReplicaSet &#x5E76;&#x6269;&#x5BB9;&#x4E86;3&#x4E2A; replica&#xFF0C;&#x540C;&#x65F6;&#x5C06;&#x539F;&#x6765;&#x7684; ReplicaSet &#x7F29;&#x5BB9;&#x5230;&#x4E86;0&#x4E2A; replica&#x3002;</p>
<pre><code class="lang-shell">$ kubectl get rs
NAME DESIRED CURRENT READY AGE
nginx-deployment-1564180365 3 3 0 6s
nginx-deployment-2035384211 0 0 0 36s
</code></pre>
<p>&#x6267;&#x884C; <code>get pods</code>&#x53EA;&#x4F1A;&#x770B;&#x5230;&#x5F53;&#x524D;&#x7684;&#x65B0;&#x7684; pod:</p>
<pre><code class="lang-shell">$ kubectl get pods
NAME READY STATUS RESTARTS AGE
nginx-deployment-1564180365-khku8 1/1 Running 0 14s
nginx-deployment-1564180365-nacti 1/1 Running 0 14s
nginx-deployment-1564180365-z9gth 1/1 Running 0 14s
</code></pre>
<p>&#x4E0B;&#x6B21;&#x66F4;&#x65B0;&#x8FD9;&#x4E9B; pod &#x7684;&#x65F6;&#x5019;&#xFF0C;&#x53EA;&#x9700;&#x8981;&#x66F4;&#x65B0; Deployment &#x4E2D;&#x7684; pod &#x7684; template &#x5373;&#x53EF;&#x3002;</p>
<p>Deployment &#x53EF;&#x4EE5;&#x4FDD;&#x8BC1;&#x5728;&#x5347;&#x7EA7;&#x65F6;&#x53EA;&#x6709;&#x4E00;&#x5B9A;&#x6570;&#x91CF;&#x7684; Pod &#x662F; down &#x7684;&#x3002;&#x9ED8;&#x8BA4;&#x7684;&#xFF0C;&#x5B83;&#x4F1A;&#x786E;&#x4FDD;&#x81F3;&#x5C11;&#x6709;&#x6BD4;&#x671F;&#x671B;&#x7684;Pod&#x6570;&#x91CF;&#x5C11;&#x4E00;&#x4E2A;&#x662F;up&#x72B6;&#x6001;&#xFF08;&#x6700;&#x591A;&#x4E00;&#x4E2A;&#x4E0D;&#x53EF;&#x7528;&#xFF09;&#x3002;</p>
<p>Deployment &#x540C;&#x65F6;&#x4E5F;&#x53EF;&#x4EE5;&#x786E;&#x4FDD;&#x53EA;&#x521B;&#x5EFA;&#x51FA;&#x8D85;&#x8FC7;&#x671F;&#x671B;&#x6570;&#x91CF;&#x7684;&#x4E00;&#x5B9A;&#x6570;&#x91CF;&#x7684; Pod&#x3002;&#x9ED8;&#x8BA4;&#x7684;&#xFF0C;&#x5B83;&#x4F1A;&#x786E;&#x4FDD;&#x6700;&#x591A;&#x6BD4;&#x671F;&#x671B;&#x7684;Pod&#x6570;&#x91CF;&#x591A;&#x4E00;&#x4E2A;&#x7684; Pod &#x662F; up &#x7684;&#xFF08;&#x6700;&#x591A;1&#x4E2A; surge &#xFF09;&#x3002;</p>
<p><strong>&#x5728;&#x672A;&#x6765;&#x7684; Kuberentes &#x7248;&#x672C;&#x4E2D;&#xFF0C;&#x5C06;&#x4ECE;1-1&#x53D8;&#x6210;25%-25%&#x3002;</strong></p>
<p>&#x4F8B;&#x5982;&#xFF0C;&#x5982;&#x679C;&#x60A8;&#x81EA;&#x5DF1;&#x770B;&#x4E0B;&#x4E0A;&#x9762;&#x7684; Deployment&#xFF0C;&#x60A8;&#x4F1A;&#x53D1;&#x73B0;&#xFF0C;&#x5F00;&#x59CB;&#x521B;&#x5EFA;&#x4E00;&#x4E2A;&#x65B0;&#x7684; Pod&#xFF0C;&#x7136;&#x540E;&#x5220;&#x9664;&#x4E00;&#x4E9B;&#x65E7;&#x7684; Pod &#x518D;&#x521B;&#x5EFA;&#x4E00;&#x4E2A;&#x65B0;&#x7684;&#x3002;&#x5F53;&#x65B0;&#x7684;Pod&#x521B;&#x5EFA;&#x51FA;&#x6765;&#x4E4B;&#x524D;&#x4E0D;&#x4F1A;&#x6740;&#x6389;&#x65E7;&#x7684;Pod&#x3002;&#x8FD9;&#x6837;&#x80FD;&#x591F;&#x786E;&#x4FDD;&#x53EF;&#x7528;&#x7684; Pod &#x6570;&#x91CF;&#x81F3;&#x5C11;&#x6709;2&#x4E2A;&#xFF0C;Pod&#x7684;&#x603B;&#x6570;&#x6700;&#x591A;4&#x4E2A;&#x3002;</p>
<pre><code class="lang-shell">$ kubectl describe deployments
Name: nginx-deployment
Namespace: default
CreationTimestamp: Tue, 15 Mar 2016 12:01:06 -0700
Labels: app=nginx
Selector: app=nginx
Replicas: 3 updated | 3 total | 3 available | 0 unavailable
StrategyType: RollingUpdate
MinReadySeconds: 0
RollingUpdateStrategy: 1 max unavailable, 1 max surge
OldReplicaSets: &lt;none&gt;
NewReplicaSet: nginx-deployment-1564180365 (3/3 replicas created)
Events:
FirstSeen LastSeen Count From SubobjectPath Type Reason Message
--------- -------- ----- ---- ------------- -------- ------ -------
36s 36s 1 {deployment-controller } Normal ScalingReplicaSet Scaled up replica set nginx-deployment-2035384211 to 3
23s 23s 1 {deployment-controller } Normal ScalingReplicaSet Scaled up replica set nginx-deployment-1564180365 to 1
23s 23s 1 {deployment-controller } Normal ScalingReplicaSet Scaled down replica set nginx-deployment-2035384211 to 2
23s 23s 1 {deployment-controller } Normal ScalingReplicaSet Scaled up replica set nginx-deployment-1564180365 to 2
21s 21s 1 {deployment-controller } Normal ScalingReplicaSet Scaled down replica set nginx-deployment-2035384211 to 0
21s 21s 1 {deployment-controller } Normal ScalingReplicaSet Scaled up replica set nginx-deployment-1564180365 to 3
</code></pre>
<p>&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x770B;&#x5230;&#x5F53;&#x6211;&#x4EEC;&#x521A;&#x5F00;&#x59CB;&#x521B;&#x5EFA;&#x8FD9;&#x4E2A; Deployment &#x7684;&#x65F6;&#x5019;&#xFF0C;&#x521B;&#x5EFA;&#x4E86;&#x4E00;&#x4E2A; ReplicaSet&#xFF08;nginx-deployment-2035384211&#xFF09;&#xFF0C;&#x5E76;&#x76F4;&#x63A5;&#x6269;&#x5BB9;&#x5230;&#x4E86;3&#x4E2A; replica&#x3002;</p>
<p>&#x5F53;&#x6211;&#x4EEC;&#x66F4;&#x65B0;&#x8FD9;&#x4E2A; Deployment &#x7684;&#x65F6;&#x5019;&#xFF0C;&#x5B83;&#x4F1A;&#x521B;&#x5EFA;&#x4E00;&#x4E2A;&#x65B0;&#x7684; ReplicaSet&#xFF08;nginx-deployment-1564180365&#xFF09;&#xFF0C;&#x5C06;&#x5B83;&#x6269;&#x5BB9;&#x5230;1&#x4E2A;replica&#xFF0C;&#x7136;&#x540E;&#x7F29;&#x5BB9;&#x539F;&#x5148;&#x7684; ReplicaSet &#x5230;2&#x4E2A; replica&#xFF0C;&#x6B64;&#x65F6;&#x6EE1;&#x8DB3;&#x81F3;&#x5C11;2&#x4E2A; Pod &#x662F;&#x53EF;&#x7528;&#x72B6;&#x6001;&#xFF0C;&#x540C;&#x4E00;&#x65F6;&#x523B;&#x6700;&#x591A;&#x6709;4&#x4E2A; Pod &#x5904;&#x4E8E;&#x521B;&#x5EFA;&#x7684;&#x72B6;&#x6001;&#x3002;</p>
<p>&#x63A5;&#x7740;&#x7EE7;&#x7EED;&#x4F7F;&#x7528;&#x76F8;&#x540C;&#x7684; rolling update &#x7B56;&#x7565;&#x6269;&#x5BB9;&#x65B0;&#x7684; ReplicaSet &#x548C;&#x7F29;&#x5BB9;&#x65E7;&#x7684; ReplicaSet&#x3002;&#x6700;&#x7EC8;&#xFF0C;&#x5C06;&#x4F1A;&#x5728;&#x65B0;&#x7684; ReplicaSet &#x4E2D;&#x6709;3&#x4E2A;&#x53EF;&#x7528;&#x7684; replica&#xFF0C;&#x65E7;&#x7684; ReplicaSet &#x7684; replica &#x6570;&#x76EE;&#x53D8;&#x6210;0&#x3002;</p>
<h3 id="rollover&#xFF08;&#x591A;&#x4E2A;rollout&#x5E76;&#x884C;&#xFF09;">Rollover&#xFF08;&#x591A;&#x4E2A;rollout&#x5E76;&#x884C;&#xFF09;</h3>
<p>&#x6BCF;&#x5F53; Deployment controller &#x89C2;&#x6D4B;&#x5230;&#x6709;&#x65B0;&#x7684; deployment &#x88AB;&#x521B;&#x5EFA;&#x65F6;&#xFF0C;&#x5982;&#x679C;&#x6CA1;&#x6709;&#x5DF2;&#x5B58;&#x5728;&#x7684; ReplicaSet &#x6765;&#x521B;&#x5EFA;&#x671F;&#x671B;&#x4E2A;&#x6570;&#x7684; Pod &#x7684;&#x8BDD;&#xFF0C;&#x5C31;&#x4F1A;&#x521B;&#x5EFA;&#x51FA;&#x4E00;&#x4E2A;&#x65B0;&#x7684; ReplicaSet &#x6765;&#x505A;&#x8FD9;&#x4EF6;&#x4E8B;&#x3002;&#x5DF2;&#x5B58;&#x5728;&#x7684; ReplicaSet &#x63A7;&#x5236; label &#x4E0E;<code>.spec.selector</code>&#x5339;&#x914D;&#x4F46;&#x662F; template &#x8DDF;<code>.spec.template</code>&#x4E0D;&#x5339;&#x914D;&#x7684; Pod &#x7F29;&#x5BB9;&#x3002;&#x6700;&#x7EC8;&#xFF0C;&#x65B0;&#x7684; ReplicaSet &#x5C06;&#x4F1A;&#x6269;&#x5BB9;&#x51FA;<code>.spec.replicas</code>&#x6307;&#x5B9A;&#x6570;&#x76EE;&#x7684; Pod&#xFF0C;&#x65E7;&#x7684; ReplicaSet &#x4F1A;&#x7F29;&#x5BB9;&#x5230;0&#x3002;</p>
<p>&#x5982;&#x679C;&#x60A8;&#x66F4;&#x65B0;&#x4E86;&#x4E00;&#x4E2A;&#x7684;&#x5DF2;&#x5B58;&#x5728;&#x5E76;&#x6B63;&#x5728;&#x8FDB;&#x884C;&#x4E2D;&#x7684; Deployment&#xFF0C;&#x6BCF;&#x6B21;&#x66F4;&#x65B0; Deployment&#x90FD;&#x4F1A;&#x521B;&#x5EFA;&#x4E00;&#x4E2A;&#x65B0;&#x7684; ReplicaSet&#x5E76;&#x6269;&#x5BB9;&#x5B83;&#xFF0C;&#x540C;&#x65F6;&#x56DE;&#x6EDA;&#x4E4B;&#x524D;&#x6269;&#x5BB9;&#x7684; ReplicaSet &#x2014;&#x2014;&#x5C06;&#x5B83;&#x6DFB;&#x52A0;&#x5230;&#x65E7;&#x7684; ReplicaSet &#x5217;&#x8868;&#x4E2D;&#xFF0C;&#x5F00;&#x59CB;&#x7F29;&#x5BB9;&#x3002;</p>
<p>&#x4F8B;&#x5982;&#xFF0C;&#x5047;&#x5982;&#x60A8;&#x521B;&#x5EFA;&#x4E86;&#x4E00;&#x4E2A;&#x6709;5&#x4E2A;<code>niginx:1.7.9</code> replica&#x7684; Deployment&#xFF0C;&#x4F46;&#x662F;&#x5F53;&#x8FD8;&#x53EA;&#x6709;3&#x4E2A;<code>nginx:1.7.9</code>&#x7684; replica &#x521B;&#x5EFA;&#x51FA;&#x6765;&#x7684;&#x65F6;&#x5019;&#x60A8;&#x5C31;&#x5F00;&#x59CB;&#x66F4;&#x65B0;&#x542B;&#x6709;5&#x4E2A;<code>nginx:1.9.1</code> replica &#x7684; Deployment&#x3002;&#x5728;&#x8FD9;&#x79CD;&#x60C5;&#x51B5;&#x4E0B;&#xFF0C;Deployment &#x4F1A;&#x7ACB;&#x5373;&#x6740;&#x6389;&#x5DF2;&#x521B;&#x5EFA;&#x7684;3&#x4E2A;<code>nginx:1.7.9</code>&#x7684; Pod&#xFF0C;&#x5E76;&#x5F00;&#x59CB;&#x521B;&#x5EFA;<code>nginx:1.9.1</code>&#x7684; Pod&#x3002;&#x5B83;&#x4E0D;&#x4F1A;&#x7B49;&#x5230;&#x6240;&#x6709;&#x7684;5&#x4E2A;<code>nginx:1.7.9</code>&#x7684; Pod &#x90FD;&#x521B;&#x5EFA;&#x5B8C;&#x6210;&#x540E;&#x624D;&#x5F00;&#x59CB;&#x6539;&#x53D8;&#x822A;&#x9053;&#x3002;</p>
<h3 id="label-selector-&#x66F4;&#x65B0;">Label selector &#x66F4;&#x65B0;</h3>
<p>&#x6211;&#x4EEC;&#x901A;&#x5E38;&#x4E0D;&#x9F13;&#x52B1;&#x66F4;&#x65B0; label selector&#xFF0C;&#x6211;&#x4EEC;&#x5EFA;&#x8BAE;&#x5B9E;&#x73B0;&#x89C4;&#x5212;&#x597D;&#x60A8;&#x7684; selector&#x3002;</p>
<p>&#x4EFB;&#x4F55;&#x60C5;&#x51B5;&#x4E0B;&#xFF0C;&#x53EA;&#x8981;&#x60A8;&#x60F3;&#x8981;&#x6267;&#x884C; label selector &#x7684;&#x66F4;&#x65B0;&#xFF0C;&#x8BF7;&#x4E00;&#x5B9A;&#x8981;&#x8C28;&#x614E;&#x5E76;&#x786E;&#x8BA4;&#x60A8;&#x5DF2;&#x7ECF;&#x9884;&#x6599;&#x5230;&#x6240;&#x6709;&#x53EF;&#x80FD;&#x56E0;&#x6B64;&#x5BFC;&#x81F4;&#x7684;&#x540E;&#x679C;&#x3002;</p>
<ul>
<li>&#x589E;&#x6DFB; selector &#x9700;&#x8981;&#x540C;&#x65F6;&#x5728; Deployment &#x7684; spec &#x4E2D;&#x66F4;&#x65B0;&#x65B0;&#x7684; label&#xFF0C;&#x5426;&#x5219;&#x5C06;&#x8FD4;&#x56DE;&#x6821;&#x9A8C;&#x9519;&#x8BEF;&#x3002;&#x6B64;&#x66F4;&#x6539;&#x662F;&#x4E0D;&#x53EF;&#x8986;&#x76D6;&#x7684;&#xFF0C;&#x8FD9;&#x610F;&#x5473;&#x7740;&#x65B0;&#x7684; selector &#x4E0D;&#x4F1A;&#x9009;&#x62E9;&#x4F7F;&#x7528;&#x65E7; selector &#x521B;&#x5EFA;&#x7684; ReplicaSet &#x548C; Pod&#xFF0C;&#x4ECE;&#x800C;&#x5BFC;&#x81F4;&#x6240;&#x6709;&#x65E7;&#x7248;&#x672C;&#x7684; ReplicaSet &#x90FD;&#x88AB;&#x4E22;&#x5F03;&#xFF0C;&#x5E76;&#x521B;&#x5EFA;&#x65B0;&#x7684; ReplicaSet&#x3002;</li>
<li>&#x66F4;&#x65B0; selector&#xFF0C;&#x5373;&#x66F4;&#x6539; selector key &#x7684;&#x5F53;&#x524D;&#x503C;&#xFF0C;&#x5C06;&#x5BFC;&#x81F4;&#x8DDF;&#x589E;&#x6DFB; selector &#x540C;&#x6837;&#x7684;&#x540E;&#x679C;&#x3002;</li>
<li>&#x5220;&#x9664; selector&#xFF0C;&#x5373;&#x5220;&#x9664; Deployment selector &#x4E2D;&#x7684;&#x5DF2;&#x6709;&#x7684; key&#xFF0C;&#x4E0D;&#x9700;&#x8981;&#x5BF9; Pod template label &#x505A;&#x4EFB;&#x4F55;&#x66F4;&#x6539;&#xFF0C;&#x73B0;&#x6709;&#x7684; ReplicaSet &#x4E5F;&#x4E0D;&#x4F1A;&#x6210;&#x4E3A;&#x5B64;&#x513F;&#xFF0C;&#x4F46;&#x662F;&#x8BF7;&#x6CE8;&#x610F;&#xFF0C;&#x5220;&#x9664;&#x7684; label &#x4ECD;&#x7136;&#x5B58;&#x5728;&#x4E8E;&#x73B0;&#x6709;&#x7684; Pod &#x548C; ReplicaSet &#x4E2D;&#x3002;</li>
</ul>
<h2 id="&#x56DE;&#x9000;deployment">&#x56DE;&#x9000;Deployment</h2>
<p>&#x6709;&#x65F6;&#x5019;&#x60A8;&#x53EF;&#x80FD;&#x60F3;&#x56DE;&#x9000;&#x4E00;&#x4E2A; Deployment&#xFF0C;&#x4F8B;&#x5982;&#xFF0C;&#x5F53; Deployment &#x4E0D;&#x7A33;&#x5B9A;&#x65F6;&#xFF0C;&#x6BD4;&#x5982;&#x4E00;&#x76F4; crash looping&#x3002;</p>
<p>&#x9ED8;&#x8BA4;&#x60C5;&#x51B5;&#x4E0B;&#xFF0C;kubernetes &#x4F1A;&#x5728;&#x7CFB;&#x7EDF;&#x4E2D;&#x4FDD;&#x5B58;&#x524D;&#x4E24;&#x6B21;&#x7684; Deployment &#x7684; rollout &#x5386;&#x53F2;&#x8BB0;&#x5F55;&#xFF0C;&#x4EE5;&#x4FBF;&#x60A8;&#x53EF;&#x4EE5;&#x968F;&#x65F6;&#x56DE;&#x9000;&#xFF08;&#x60A8;&#x53EF;&#x4EE5;&#x4FEE;&#x6539;<code>revision history limit</code>&#x6765;&#x66F4;&#x6539;&#x4FDD;&#x5B58;&#x7684;revision&#x6570;&#xFF09;&#x3002;</p>
<p><strong>&#x6CE8;&#x610F;&#xFF1A;</strong> &#x53EA;&#x8981; Deployment &#x7684; rollout &#x88AB;&#x89E6;&#x53D1;&#x5C31;&#x4F1A;&#x521B;&#x5EFA;&#x4E00;&#x4E2A; revision&#x3002;&#x4E5F;&#x5C31;&#x662F;&#x8BF4;&#x5F53;&#x4E14;&#x4EC5;&#x5F53; Deployment &#x7684; Pod template&#xFF08;&#x5982;<code>.spec.template</code>&#xFF09;&#x88AB;&#x66F4;&#x6539;&#xFF0C;&#x4F8B;&#x5982;&#x66F4;&#x65B0;template &#x4E2D;&#x7684; label &#x548C;&#x5BB9;&#x5668;&#x955C;&#x50CF;&#x65F6;&#xFF0C;&#x5C31;&#x4F1A;&#x521B;&#x5EFA;&#x51FA;&#x4E00;&#x4E2A;&#x65B0;&#x7684; revision&#x3002;</p>
<p>&#x5176;&#x4ED6;&#x7684;&#x66F4;&#x65B0;&#xFF0C;&#x6BD4;&#x5982;&#x6269;&#x5BB9; Deployment &#x4E0D;&#x4F1A;&#x521B;&#x5EFA; revision&#x2014;&#x2014;&#x56E0;&#x6B64;&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x5F88;&#x65B9;&#x4FBF;&#x7684;&#x624B;&#x52A8;&#x6216;&#x8005;&#x81EA;&#x52A8;&#x6269;&#x5BB9;&#x3002;&#x8FD9;&#x610F;&#x5473;&#x7740;&#x5F53;&#x60A8;&#x56DE;&#x9000;&#x5230;&#x5386;&#x53F2; revision &#x662F;&#xFF0C;&#x76F4;&#x6709; Deployment &#x4E2D;&#x7684; Pod template &#x90E8;&#x5206;&#x624D;&#x4F1A;&#x56DE;&#x9000;&#x3002;</p>
<p>&#x5047;&#x8BBE;&#x6211;&#x4EEC;&#x5728;&#x66F4;&#x65B0; Deployment &#x7684;&#x65F6;&#x5019;&#x72AF;&#x4E86;&#x4E00;&#x4E2A;&#x62FC;&#x5199;&#x9519;&#x8BEF;&#xFF0C;&#x5C06;&#x955C;&#x50CF;&#x7684;&#x540D;&#x5B57;&#x5199;&#x6210;&#x4E86;<code>nginx:1.91</code>&#xFF0C;&#x800C;&#x6B63;&#x786E;&#x7684;&#x540D;&#x5B57;&#x5E94;&#x8BE5;&#x662F;<code>nginx:1.9.1</code>&#xFF1A;</p>
<pre><code class="lang-shell">$ kubectl set image deployment/nginx-deployment nginx=nginx:1.91
deployment &quot;nginx-deployment&quot; image updated
</code></pre>
<p>Rollout &#x5C06;&#x4F1A;&#x5361;&#x4F4F;&#x3002;</p>
<pre><code class="lang-shell">$ kubectl rollout status deployments nginx-deployment
Waiting for rollout to finish: 2 out of 3 new replicas have been updated...
</code></pre>
<p>&#x6309;&#x4F4F; Ctrl-C &#x505C;&#x6B62;&#x4E0A;&#x9762;&#x7684; rollout &#x72B6;&#x6001;&#x76D1;&#x63A7;&#x3002;</p>
<p>&#x60A8;&#x4F1A;&#x770B;&#x5230;&#x65E7;&#x7684; replica&#xFF08;nginx-deployment-1564180365 &#x548C; nginx-deployment-2035384211&#xFF09;&#x548C;&#x65B0;&#x7684; replica &#xFF08;nginx-deployment-3066724191&#xFF09;&#x6570;&#x76EE;&#x90FD;&#x662F;2&#x4E2A;&#x3002;</p>
<pre><code class="lang-shell">$ kubectl get rs
NAME DESIRED CURRENT READY AGE
nginx-deployment-1564180365 2 2 0 25s
nginx-deployment-2035384211 0 0 0 36s
nginx-deployment-3066724191 2 2 2 6s
</code></pre>
<p>&#x770B;&#x4E0B;&#x521B;&#x5EFA; Pod&#xFF0C;&#x60A8;&#x4F1A;&#x770B;&#x5230;&#x6709;&#x4E24;&#x4E2A;&#x65B0;&#x7684; ReplicaSet &#x521B;&#x5EFA;&#x7684; Pod &#x5904;&#x4E8E; ImagePullBackOff &#x72B6;&#x6001;&#xFF0C;&#x5FAA;&#x73AF;&#x62C9;&#x53D6;&#x955C;&#x50CF;&#x3002;</p>
<pre><code class="lang-shell">$ kubectl get pods
NAME READY STATUS RESTARTS AGE
nginx-deployment-1564180365-70iae 1/1 Running 0 25s
nginx-deployment-1564180365-jbqqo 1/1 Running 0 25s
nginx-deployment-3066724191-08mng 0/1 ImagePullBackOff 0 6s
nginx-deployment-3066724191-eocby 0/1 ImagePullBackOff 0 6s
</code></pre>
<p>&#x6CE8;&#x610F;&#xFF0C;Deployment controller&#x4F1A;&#x81EA;&#x52A8;&#x505C;&#x6B62;&#x574F;&#x7684; rollout&#xFF0C;&#x5E76;&#x505C;&#x6B62;&#x6269;&#x5BB9;&#x65B0;&#x7684; ReplicaSet&#x3002;</p>
<pre><code class="lang-shell">$ kubectl describe deployment
Name: nginx-deployment
Namespace: default
CreationTimestamp: Tue, 15 Mar 2016 14:48:04 -0700
Labels: app=nginx
Selector: app=nginx
Replicas: 2 updated | 3 total | 2 available | 2 unavailable
StrategyType: RollingUpdate
MinReadySeconds: 0
RollingUpdateStrategy: 1 max unavailable, 1 max surge
OldReplicaSets: nginx-deployment-1564180365 (2/2 replicas created)
NewReplicaSet: nginx-deployment-3066724191 (2/2 replicas created)
Events:
FirstSeen LastSeen Count From SubobjectPath Type Reason Message
--------- -------- ----- ---- ------------- -------- ------ -------
1m 1m 1 {deployment-controller } Normal ScalingReplicaSet Scaled up replica set nginx-deployment-2035384211 to 3
22s 22s 1 {deployment-controller } Normal ScalingReplicaSet Scaled up replica set nginx-deployment-1564180365 to 1
22s 22s 1 {deployment-controller } Normal ScalingReplicaSet Scaled down replica set nginx-deployment-2035384211 to 2
22s 22s 1 {deployment-controller } Normal ScalingReplicaSet Scaled up replica set nginx-deployment-1564180365 to 2
21s 21s 1 {deployment-controller } Normal ScalingReplicaSet Scaled down replica set nginx-deployment-2035384211 to 0
21s 21s 1 {deployment-controller } Normal ScalingReplicaSet Scaled up replica set nginx-deployment-1564180365 to 3
13s 13s 1 {deployment-controller } Normal ScalingReplicaSet Scaled up replica set nginx-deployment-3066724191 to 1
13s 13s 1 {deployment-controller } Normal ScalingReplicaSet Scaled down replica set nginx-deployment-1564180365 to 2
13s 13s 1 {deployment-controller } Normal ScalingReplicaSet Scaled up replica set nginx-deployment-3066724191 to 2
</code></pre>
<p>&#x4E3A;&#x4E86;&#x4FEE;&#x590D;&#x8FD9;&#x4E2A;&#x95EE;&#x9898;&#xFF0C;&#x6211;&#x4EEC;&#x9700;&#x8981;&#x56DE;&#x9000;&#x5230;&#x7A33;&#x5B9A;&#x7684; Deployment revision&#x3002;</p>
<h3 id="&#x68C0;&#x67E5;-deployment-&#x5347;&#x7EA7;&#x7684;&#x5386;&#x53F2;&#x8BB0;&#x5F55;">&#x68C0;&#x67E5; Deployment &#x5347;&#x7EA7;&#x7684;&#x5386;&#x53F2;&#x8BB0;&#x5F55;</h3>
<p>&#x9996;&#x5148;&#xFF0C;&#x68C0;&#x67E5;&#x4E0B; Deployment &#x7684; revision&#xFF1A;</p>
<pre><code class="lang-shell">$ kubectl rollout history deployment/nginx-deployment
deployments &quot;nginx-deployment&quot;:
REVISION CHANGE-CAUSE
1 kubectl create -f https://kubernetes.io/docs/user-guide/nginx-deployment.yaml--record
2 kubectl set image deployment/nginx-deployment nginx=nginx:1.9.1
3 kubectl set image deployment/nginx-deployment nginx=nginx:1.91
</code></pre>
<p>&#x56E0;&#x4E3A;&#x6211;&#x4EEC;&#x521B;&#x5EFA; Deployment &#x7684;&#x65F6;&#x5019;&#x4F7F;&#x7528;&#x4E86;<code>--recored</code>&#x53C2;&#x6570;&#x53EF;&#x4EE5;&#x8BB0;&#x5F55;&#x547D;&#x4EE4;&#xFF0C;&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x5F88;&#x65B9;&#x4FBF;&#x7684;&#x67E5;&#x770B;&#x6BCF;&#x6B21; revision &#x7684;&#x53D8;&#x5316;&#x3002;</p>
<p>&#x67E5;&#x770B;&#x5355;&#x4E2A;revision &#x7684;&#x8BE6;&#x7EC6;&#x4FE1;&#x606F;&#xFF1A;</p>
<pre><code class="lang-shell">$ kubectl rollout history deployment/nginx-deployment --revision=2
deployments &quot;nginx-deployment&quot; revision 2
Labels: app=nginx
pod-template-hash=1159050644
Annotations: kubernetes.io/change-cause=kubectl set image deployment/nginx-deployment nginx=nginx:1.9.1
Containers:
nginx:
Image: nginx:1.9.1
Port: 80/TCP
QoS Tier:
cpu: BestEffort
memory: BestEffort
Environment Variables: &lt;none&gt;
No volumes.
</code></pre>
<h3 id="&#x56DE;&#x9000;&#x5230;&#x5386;&#x53F2;&#x7248;&#x672C;">&#x56DE;&#x9000;&#x5230;&#x5386;&#x53F2;&#x7248;&#x672C;</h3>
<p>&#x73B0;&#x5728;&#xFF0C;&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x51B3;&#x5B9A;&#x56DE;&#x9000;&#x5F53;&#x524D;&#x7684; rollout &#x5230;&#x4E4B;&#x524D;&#x7684;&#x7248;&#x672C;&#xFF1A;</p>
<pre><code class="lang-shell">$ kubectl rollout undo deployment/nginx-deployment
deployment &quot;nginx-deployment&quot; rolled back
</code></pre>
<p>&#x4E5F;&#x53EF;&#x4EE5;&#x4F7F;&#x7528; <code>--revision</code>&#x53C2;&#x6570;&#x6307;&#x5B9A;&#x67D0;&#x4E2A;&#x5386;&#x53F2;&#x7248;&#x672C;&#xFF1A;</p>
<pre><code class="lang-shell">$ kubectl rollout undo deployment/nginx-deployment --to-revision=2
deployment &quot;nginx-deployment&quot; rolled back
</code></pre>
<p>&#x4E0E; rollout &#x76F8;&#x5173;&#x7684;&#x547D;&#x4EE4;&#x8BE6;&#x7EC6;&#x6587;&#x6863;&#x89C1;<a href="https://kubernetes.io/docs/user-guide/kubectl/v1.6/#rollout" target="_blank">kubectl rollout</a>&#x3002;</p>
<p>&#x8BE5; Deployment &#x73B0;&#x5728;&#x5DF2;&#x7ECF;&#x56DE;&#x9000;&#x5230;&#x4E86;&#x5148;&#x524D;&#x7684;&#x7A33;&#x5B9A;&#x7248;&#x672C;&#x3002;&#x5982;&#x60A8;&#x6240;&#x89C1;&#xFF0C;Deployment controller&#x4EA7;&#x751F;&#x4E86;&#x4E00;&#x4E2A;&#x56DE;&#x9000;&#x5230;revison 2&#x7684;<code>DeploymentRollback</code>&#x7684; event&#x3002;</p>
<pre><code class="lang-shell">$ kubectl get deployment
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE
nginx-deployment 3 3 3 3 30m
$ kubectl describe deployment
Name: nginx-deployment
Namespace: default
CreationTimestamp: Tue, 15 Mar 2016 14:48:04 -0700
Labels: app=nginx
Selector: app=nginx
Replicas: 3 updated | 3 total | 3 available | 0 unavailable
StrategyType: RollingUpdate
MinReadySeconds: 0
RollingUpdateStrategy: 1 max unavailable, 1 max surge
OldReplicaSets: &lt;none&gt;
NewReplicaSet: nginx-deployment-1564180365 (3/3 replicas created)
Events:
FirstSeen LastSeen Count From SubobjectPath Type Reason Message
--------- -------- ----- ---- ------------- -------- ------ -------
30m 30m 1 {deployment-controller } Normal ScalingReplicaSet Scaled up replica set nginx-deployment-2035384211 to 3
29m 29m 1 {deployment-controller } Normal ScalingReplicaSet Scaled up replica set nginx-deployment-1564180365 to 1
29m 29m 1 {deployment-controller } Normal ScalingReplicaSet Scaled down replica set nginx-deployment-2035384211 to 2
29m 29m 1 {deployment-controller } Normal ScalingReplicaSet Scaled up replica set nginx-deployment-1564180365 to 2
29m 29m 1 {deployment-controller } Normal ScalingReplicaSet Scaled down replica set nginx-deployment-2035384211 to 0
29m 29m 1 {deployment-controller } Normal ScalingReplicaSet Scaled up replica set nginx-deployment-3066724191 to 2
29m 29m 1 {deployment-controller } Normal ScalingReplicaSet Scaled up replica set nginx-deployment-3066724191 to 1
29m 29m 1 {deployment-controller } Normal ScalingReplicaSet Scaled down replica set nginx-deployment-1564180365 to 2
2m 2m 1 {deployment-controller } Normal ScalingReplicaSet Scaled down replica set nginx-deployment-3066724191 to 0
2m 2m 1 {deployment-controller } Normal DeploymentRollback Rolled back deployment &quot;nginx-deployment&quot; to revision 2
29m 2m 2 {deployment-controller } Normal ScalingReplicaSet Scaled up replica set nginx-deployment-1564180365 to 3
</code></pre>
<h3 id="&#x6E05;&#x7406;-policy">&#x6E05;&#x7406; Policy</h3>
<p>&#x60A8;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;&#x8BBE;&#x7F6E;<code>.spec.revisonHistoryLimit</code>&#x9879;&#x6765;&#x6307;&#x5B9A; deployment &#x6700;&#x591A;&#x4FDD;&#x7559;&#x591A;&#x5C11; revision &#x5386;&#x53F2;&#x8BB0;&#x5F55;&#x3002;&#x9ED8;&#x8BA4;&#x7684;&#x4F1A;&#x4FDD;&#x7559;&#x6240;&#x6709;&#x7684; revision&#xFF1B;&#x5982;&#x679C;&#x5C06;&#x8BE5;&#x9879;&#x8BBE;&#x7F6E;&#x4E3A;0&#xFF0C;Deployment&#x5C31;&#x4E0D;&#x5141;&#x8BB8;&#x56DE;&#x9000;&#x4E86;&#x3002;</p>
<h2 id="deployment-&#x6269;&#x5BB9;">Deployment &#x6269;&#x5BB9;</h2>
<p>&#x60A8;&#x53EF;&#x4EE5;&#x4F7F;&#x7528;&#x4EE5;&#x4E0B;&#x547D;&#x4EE4;&#x6269;&#x5BB9; Deployment&#xFF1A;</p>
<pre><code class="lang-shell">$ kubectl scale deployment nginx-deployment --replicas 10
deployment &quot;nginx-deployment&quot; scaled
</code></pre>
<p>&#x5047;&#x8BBE;&#x60A8;&#x7684;&#x96C6;&#x7FA4;&#x4E2D;&#x542F;&#x7528;&#x4E86;<a href="https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale-walkthrough" target="_blank">horizontal pod autoscaling</a>&#xFF0C;&#x60A8;&#x53EF;&#x4EE5;&#x7ED9; Deployment &#x8BBE;&#x7F6E;&#x4E00;&#x4E2A; autoscaler&#xFF0C;&#x57FA;&#x4E8E;&#x5F53;&#x524D; Pod&#x7684; CPU &#x5229;&#x7528;&#x7387;&#x9009;&#x62E9;&#x6700;&#x5C11;&#x548C;&#x6700;&#x591A;&#x7684; Pod &#x6570;&#x3002;</p>
<pre><code class="lang-shell">$ kubectl autoscale deployment nginx-deployment --min=10 --max=15 --cpu-percent=80
deployment &quot;nginx-deployment&quot; autoscaled
</code></pre>
<h3 id="&#x6BD4;&#x4F8B;&#x6269;&#x5BB9;">&#x6BD4;&#x4F8B;&#x6269;&#x5BB9;</h3>
<p>RollingUpdate Deployment &#x652F;&#x6301;&#x540C;&#x65F6;&#x8FD0;&#x884C;&#x4E00;&#x4E2A;&#x5E94;&#x7528;&#x7684;&#x591A;&#x4E2A;&#x7248;&#x672C;&#x3002;&#x6216;&#x8005; autoscaler &#x6269; &#x5BB9; RollingUpdate Deployment &#x7684;&#x65F6;&#x5019;&#xFF0C;&#x6B63;&#x5728;&#x4E2D;&#x9014;&#x7684; rollout&#xFF08;&#x8FDB;&#x884C;&#x4E2D;&#x6216;&#x8005;&#x5DF2;&#x7ECF;&#x6682;&#x505C;&#x7684;&#xFF09;&#xFF0C;&#x4E3A;&#x4E86;&#x964D;&#x4F4E;&#x98CE;&#x9669;&#xFF0C;Deployment controller &#x5C06;&#x4F1A;&#x5E73;&#x8861;&#x5DF2;&#x5B58;&#x5728;&#x7684;&#x6D3B;&#x52A8;&#x4E2D;&#x7684; ReplicaSet&#xFF08;&#x6709; Pod &#x7684; ReplicaSet&#xFF09;&#x548C;&#x65B0;&#x52A0;&#x5165;&#x7684; replica&#x3002;&#x8FD9;&#x88AB;&#x79F0;&#x4E3A;&#x6BD4;&#x4F8B;&#x6269;&#x5BB9;&#x3002;</p>
<p>&#x4F8B;&#x5982;&#xFF0C;&#x60A8;&#x6B63;&#x5728;&#x8FD0;&#x884C;&#x4E2D;&#x542B;&#x6709;10&#x4E2A; replica &#x7684; Deployment&#x3002;maxSurge=3&#xFF0C;maxUnavailable=2&#x3002;</p>
<pre><code class="lang-shell">$ kubectl get deploy
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE
nginx-deployment 10 10 10 10 50s
</code></pre>
<p>&#x60A8;&#x66F4;&#x65B0;&#x4E86;&#x4E00;&#x4E2A;&#x955C;&#x50CF;&#xFF0C;&#x800C;&#x5728;&#x96C6;&#x7FA4;&#x5185;&#x90E8;&#x65E0;&#x6CD5;&#x89E3;&#x6790;&#x3002;</p>
<pre><code class="lang-shell">$ kubectl set image deploy/nginx-deployment nginx=nginx:sometag
deployment &quot;nginx-deployment&quot; image updated
</code></pre>
<p>&#x955C;&#x50CF;&#x66F4;&#x65B0;&#x542F;&#x52A8;&#x4E86;&#x4E00;&#x4E2A;&#x5305;&#x542B;ReplicaSet nginx-deployment-1989198191&#x7684;&#x65B0;&#x7684;rollout&#xFF0C;&#x4F46;&#x662F;&#x5B83;&#x88AB;&#x963B;&#x585E;&#x4E86;&#xFF0C;&#x56E0;&#x4E3A;&#x6211;&#x4EEC;&#x4E0A;&#x9762;&#x63D0;&#x5230;&#x7684;maxUnavailable&#x3002;</p>
<pre><code class="lang-shell">$ kubectl get rs
NAME DESIRED CURRENT READY AGE
nginx-deployment-1989198191 5 5 0 9s
nginx-deployment-618515232 8 8 8 1m
</code></pre>
<p>&#x7136;&#x540E;&#x53D1;&#x8D77;&#x4E86;&#x4E00;&#x4E2A;&#x65B0;&#x7684;Deployment&#x6269;&#x5BB9;&#x8BF7;&#x6C42;&#x3002;autoscaler&#x5C06;Deployment&#x7684;repllica&#x6570;&#x76EE;&#x589E;&#x52A0;&#x5230;&#x4E86;15&#x4E2A;&#x3002;Deployment controller&#x9700;&#x8981;&#x5224;&#x65AD;&#x5728;&#x54EA;&#x91CC;&#x589E;&#x52A0;&#x8FD9;5&#x4E2A;&#x65B0;&#x7684;replica&#x3002;&#x5982;&#x679C;&#x6211;&#x4EEC;&#x6CA1;&#x6709;&#x8C01;&#x7528;&#x6BD4;&#x4F8B;&#x6269;&#x5BB9;&#xFF0C;&#x6240;&#x6709;&#x7684;5&#x4E2A;replica&#x90FD;&#x4F1A;&#x52A0;&#x5230;&#x4E00;&#x4E2A;&#x65B0;&#x7684;ReplicaSet&#x4E2D;&#x3002;&#x5982;&#x679C;&#x4F7F;&#x7528;&#x6BD4;&#x4F8B;&#x6269;&#x5BB9;&#xFF0C;&#x65B0;&#x6DFB;&#x52A0;&#x7684;replica&#x5C06;&#x4F20;&#x64AD;&#x5230;&#x6240;&#x6709;&#x7684;ReplicaSet&#x4E2D;&#x3002;&#x5927;&#x7684;&#x90E8;&#x5206;&#x52A0;&#x5165;replica&#x6570;&#x6700;&#x591A;&#x7684;ReplicaSet&#x4E2D;&#xFF0C;&#x5C0F;&#x7684;&#x90E8;&#x5206;&#x52A0;&#x5165;&#x5230;replica&#x6570;&#x5C11;&#x7684;ReplciaSet&#x4E2D;&#x3002;0&#x4E2A;replica&#x7684;ReplicaSet&#x4E0D;&#x4F1A;&#x88AB;&#x6269;&#x5BB9;&#x3002;</p>
<p>&#x5728;&#x6211;&#x4EEC;&#x4E0A;&#x9762;&#x7684;&#x4F8B;&#x5B50;&#x4E2D;&#xFF0C;3&#x4E2A;replica&#x5C06;&#x6DFB;&#x52A0;&#x5230;&#x65E7;&#x7684;ReplicaSet&#x4E2D;&#xFF0C;2&#x4E2A;replica&#x5C06;&#x6DFB;&#x52A0;&#x5230;&#x65B0;&#x7684;ReplicaSet&#x4E2D;&#x3002;rollout&#x8FDB;&#x7A0B;&#x6700;&#x7EC8;&#x4F1A;&#x5C06;&#x6240;&#x6709;&#x7684;replica&#x79FB;&#x52A8;&#x5230;&#x65B0;&#x7684;ReplicaSet&#x4E2D;&#xFF0C;&#x5047;&#x8BBE;&#x65B0;&#x7684;replica&#x6210;&#x4E3A;&#x5065;&#x5EB7;&#x72B6;&#x6001;&#x3002;</p>
<pre><code class="lang-shell">$ kubectl get deploy
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE
nginx-deployment 15 18 7 8 7m
$ kubectl get rs
NAME DESIRED CURRENT READY AGE
nginx-deployment-1989198191 7 7 0 7m
nginx-deployment-618515232 11 11 11 7m
</code></pre>
<h2 id="&#x6682;&#x505C;&#x548C;&#x6062;&#x590D;deployment">&#x6682;&#x505C;&#x548C;&#x6062;&#x590D;Deployment</h2>
<p>&#x60A8;&#x53EF;&#x4EE5;&#x5728;&#x53D1;&#x51FA;&#x4E00;&#x6B21;&#x6216;&#x591A;&#x6B21;&#x66F4;&#x65B0;&#x524D;&#x6682;&#x505C;&#x4E00;&#x4E2A; Deployment&#xFF0C;&#x7136;&#x540E;&#x518D;&#x6062;&#x590D;&#x5B83;&#x3002;&#x8FD9;&#x6837;&#x60A8;&#x5C31;&#x80FD;&#x591A;&#x6B21;&#x6682;&#x505C;&#x548C;&#x6062;&#x590D; Deployment&#xFF0C;&#x5728;&#x6B64;&#x671F;&#x95F4;&#x8FDB;&#x884C;&#x4E00;&#x4E9B;&#x4FEE;&#x590D;&#x5DE5;&#x4F5C;&#xFF0C;&#x800C;&#x4E0D;&#x4F1A;&#x53D1;&#x51FA;&#x4E0D;&#x5FC5;&#x8981;&#x7684; rollout&#x3002;</p>
<p>&#x4F8B;&#x5982;&#x4F7F;&#x7528;&#x521A;&#x521A;&#x521B;&#x5EFA; Deployment&#xFF1A;</p>
<pre><code class="lang-shell">$ kubectl get deploy
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE
nginx 3 3 3 3 1m
[mkargaki@dhcp129-211 kubernetes]$ kubectl get rs
NAME DESIRED CURRENT READY AGE
nginx-2142116321 3 3 3 1m
</code></pre>
<p>&#x4F7F;&#x7528;&#x4EE5;&#x4E0B;&#x547D;&#x4EE4;&#x6682;&#x505C; Deployment&#xFF1A;</p>
<pre><code class="lang-shell">$ kubectl rollout pause deployment/nginx-deployment
deployment &quot;nginx-deployment&quot; paused
</code></pre>
<p>&#x7136;&#x540E;&#x66F4;&#x65B0; Deplyment&#x4E2D;&#x7684;&#x955C;&#x50CF;&#xFF1A;</p>
<pre><code class="lang-shell">$ kubectl set image deploy/nginx nginx=nginx:1.9.1
deployment &quot;nginx-deployment&quot; image updated
</code></pre>
<p>&#x6CE8;&#x610F;&#x65B0;&#x7684; rollout &#x542F;&#x52A8;&#x4E86;&#xFF1A;</p>
<pre><code class="lang-shell">$ kubectl rollout history deploy/nginx
deployments &quot;nginx&quot;
REVISION CHANGE-CAUSE
1 &lt;none&gt;
$ kubectl get rs
NAME DESIRED CURRENT READY AGE
nginx-2142116321 3 3 3 2m
</code></pre>
<p>&#x60A8;&#x53EF;&#x4EE5;&#x8FDB;&#x884C;&#x4EFB;&#x610F;&#x591A;&#x6B21;&#x66F4;&#x65B0;&#xFF0C;&#x4F8B;&#x5982;&#x66F4;&#x65B0;&#x4F7F;&#x7528;&#x7684;&#x8D44;&#x6E90;&#xFF1A;</p>
<pre><code class="lang-shell">$ kubectl set resources deployment nginx -c=nginx --limits=cpu=200m,memory=512Mi
deployment &quot;nginx&quot; resource requirements updated
</code></pre>
<p>Deployment &#x6682;&#x505C;&#x524D;&#x7684;&#x521D;&#x59CB;&#x72B6;&#x6001;&#x5C06;&#x7EE7;&#x7EED;&#x5B83;&#x7684;&#x529F;&#x80FD;&#xFF0C;&#x800C;&#x4E0D;&#x4F1A;&#x5BF9; Deployment &#x7684;&#x66F4;&#x65B0;&#x4EA7;&#x751F;&#x4EFB;&#x4F55;&#x5F71;&#x54CD;&#xFF0C;&#x53EA;&#x8981; Deployment&#x662F;&#x6682;&#x505C;&#x7684;&#x3002;</p>
<p>&#x6700;&#x540E;&#xFF0C;&#x6062;&#x590D;&#x8FD9;&#x4E2A; Deployment&#xFF0C;&#x89C2;&#x5BDF;&#x5B8C;&#x6210;&#x66F4;&#x65B0;&#x7684; ReplicaSet &#x5DF2;&#x7ECF;&#x521B;&#x5EFA;&#x51FA;&#x6765;&#x4E86;&#xFF1A;</p>
<pre><code class="lang-shell">$ kubectl rollout resume deploy nginx
deployment &quot;nginx&quot; resumed
$ KUBECTL get rs -w
NAME DESIRED CURRENT READY AGE
nginx-2142116321 2 2 2 2m
nginx-3926361531 2 2 0 6s
nginx-3926361531 2 2 1 18s
nginx-2142116321 1 2 2 2m
nginx-2142116321 1 2 2 2m
nginx-3926361531 3 2 1 18s
nginx-3926361531 3 2 1 18s
nginx-2142116321 1 1 1 2m
nginx-3926361531 3 3 1 18s
nginx-3926361531 3 3 2 19s
nginx-2142116321 0 1 1 2m
nginx-2142116321 0 1 1 2m
nginx-2142116321 0 0 0 2m
nginx-3926361531 3 3 3 20s
^C
$ KUBECTL get rs
NAME DESIRED CURRENT READY AGE
nginx-2142116321 0 0 0 2m
nginx-3926361531 3 3 3 28s
</code></pre>
<p><strong>&#x6CE8;&#x610F;&#xFF1A;</strong> &#x5728;&#x6062;&#x590D; Deployment &#x4E4B;&#x524D;&#x60A8;&#x65E0;&#x6CD5;&#x56DE;&#x9000;&#x4E00;&#x4E2A;&#x5DF2;&#x7ECF;&#x6682;&#x505C;&#x7684; Deployment&#x3002;</p>
<h2 id="deployment-&#x72B6;&#x6001;">Deployment &#x72B6;&#x6001;</h2>
<p>Deployment &#x5728;&#x751F;&#x547D;&#x5468;&#x671F;&#x4E2D;&#x6709;&#x591A;&#x79CD;&#x72B6;&#x6001;&#x3002;&#x5728;&#x521B;&#x5EFA;&#x4E00;&#x4E2A;&#x65B0;&#x7684; ReplicaSet &#x7684;&#x65F6;&#x5019;&#x5B83;&#x53EF;&#x4EE5;&#x662F; <a href="https://kubernetes.io/docs/concepts/workloads/controllers/deployment.md#progressing-deployment" target="_blank">progressing</a> &#x72B6;&#x6001;&#xFF0C; <a href="https://kubernetes.io/docs/concepts/workloads/controllers/deployment.md#complete-deployment" target="_blank">complete</a> &#x72B6;&#x6001;&#xFF0C;&#x6216;&#x8005; <a href="https://kubernetes.io/docs/concepts/workloads/controllers/deployment.md#failed-deployment" target="_blank">fail to progress </a>&#x72B6;&#x6001;&#x3002;</p>
<h3 id="&#x8FDB;&#x884C;&#x4E2D;&#x7684;-deployment">&#x8FDB;&#x884C;&#x4E2D;&#x7684; Deployment</h3>
<p>Kubernetes &#x5C06;&#x6267;&#x884C;&#x8FC7;&#x4E0B;&#x5217;&#x4EFB;&#x52A1;&#x4E4B;&#x4E00;&#x7684; Deployment &#x6807;&#x8BB0;&#x4E3A; <em>progressing</em> &#x72B6;&#x6001;&#xFF1A;</p>
<ul>
<li>Deployment &#x6B63;&#x5728;&#x521B;&#x5EFA;&#x65B0;&#x7684;ReplicaSet&#x8FC7;&#x7A0B;&#x4E2D;&#x3002;</li>
<li>Deployment &#x6B63;&#x5728;&#x6269;&#x5BB9;&#x4E00;&#x4E2A;&#x5DF2;&#x6709;&#x7684; ReplicaSet&#x3002;</li>
<li>Deployment &#x6B63;&#x5728;&#x7F29;&#x5BB9;&#x4E00;&#x4E2A;&#x5DF2;&#x6709;&#x7684; ReplicaSet&#x3002;</li>
<li>&#x6709;&#x65B0;&#x7684;&#x53EF;&#x7528;&#x7684; pod &#x51FA;&#x73B0;&#x3002;</li>
</ul>
<p>&#x60A8;&#x53EF;&#x4EE5;&#x4F7F;&#x7528;<code>kubectl rollout status</code>&#x547D;&#x4EE4;&#x76D1;&#x63A7; Deployment &#x7684;&#x8FDB;&#x5EA6;&#x3002;</p>
<h3 id="&#x5B8C;&#x6210;&#x7684;-deployment">&#x5B8C;&#x6210;&#x7684; Deployment</h3>
<p>Kubernetes &#x5C06;&#x5305;&#x62EC;&#x4EE5;&#x4E0B;&#x7279;&#x6027;&#x7684; Deployment &#x6807;&#x8BB0;&#x4E3A; <em>complete</em> &#x72B6;&#x6001;&#xFF1A;</p>
<ul>
<li>Deployment &#x6700;&#x5C0F;&#x53EF;&#x7528;&#x3002;&#x6700;&#x5C0F;&#x53EF;&#x7528;&#x610F;&#x5473;&#x7740; Deployment &#x7684;&#x53EF;&#x7528; replica &#x4E2A;&#x6570;&#x7B49;&#x4E8E;&#x6216;&#x8005;&#x8D85;&#x8FC7; Deployment &#x7B56;&#x7565;&#x4E2D;&#x7684;&#x671F;&#x671B;&#x4E2A;&#x6570;&#x3002;</li>
<li>&#x6240;&#x6709;&#x4E0E;&#x8BE5; Deployment &#x76F8;&#x5173;&#x7684;replica&#x90FD;&#x88AB;&#x66F4;&#x65B0;&#x5230;&#x4E86;&#x60A8;&#x6307;&#x5B9A;&#x7248;&#x672C;&#xFF0C;&#x4E5F;&#x5C31;&#x8BF4;&#x66F4;&#x65B0;&#x5B8C;&#x6210;&#x3002;</li>
<li>&#x8BE5; Deployment &#x4E2D;&#x6CA1;&#x6709;&#x65E7;&#x7684; Pod &#x5B58;&#x5728;&#x3002;</li>
</ul>
<p>&#x60A8;&#x53EF;&#x4EE5;&#x7528;<code>kubectl rollout status</code>&#x547D;&#x4EE4;&#x67E5;&#x770B; Deployment &#x662F;&#x5426;&#x5B8C;&#x6210;&#x3002;&#x5982;&#x679C; rollout &#x6210;&#x529F;&#x5B8C;&#x6210;&#xFF0C;<code>kubectl rollout status</code>&#x5C06;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;0&#x503C;&#x7684; Exit Code&#x3002;</p>
<pre><code>$ kubectl rollout status deploy/nginx
Waiting for rollout to finish: 2 of 3 updated replicas are available...
deployment &quot;nginx&quot; successfully rolled out
$ echo $?
0
</code></pre><h3 id="&#x5931;&#x8D25;&#x7684;-deployment">&#x5931;&#x8D25;&#x7684; Deployment</h3>
<p>&#x60A8;&#x7684; Deployment &#x5728;&#x5C1D;&#x8BD5;&#x90E8;&#x7F72;&#x65B0;&#x7684; ReplicaSet &#x7684;&#x65F6;&#x5019;&#x53EF;&#x80FD;&#x5361;&#x4F4F;&#xFF0C;&#x7528;&#x4E8E;&#x4E5F;&#x4E0D;&#x4F1A;&#x5B8C;&#x6210;&#x3002;&#x8FD9;&#x53EF;&#x80FD;&#x662F;&#x56E0;&#x4E3A;&#x4EE5;&#x4E0B;&#x51E0;&#x4E2A;&#x56E0;&#x7D20;&#x5F15;&#x8D77;&#x7684;&#xFF1A;</p>
<ul>
<li>&#x65E0;&#x6548;&#x7684;&#x5F15;&#x7528;</li>
<li>&#x4E0D;&#x53EF;&#x8BFB;&#x7684; probe failure</li>
<li>&#x955C;&#x50CF;&#x62C9;&#x53D6;&#x9519;&#x8BEF;</li>
<li>&#x6743;&#x9650;&#x4E0D;&#x591F;</li>
<li>&#x8303;&#x56F4;&#x9650;&#x5236;</li>
<li>&#x7A0B;&#x5E8F;&#x8FD0;&#x884C;&#x65F6;&#x914D;&#x7F6E;&#x9519;&#x8BEF;</li>
</ul>
<p>&#x63A2;&#x6D4B;&#x8FD9;&#x79CD;&#x60C5;&#x51B5;&#x7684;&#x4E00;&#x79CD;&#x65B9;&#x5F0F;&#x662F;&#xFF0C;&#x5728;&#x60A8;&#x7684; Deployment spec &#x4E2D;&#x6307;&#x5B9A;<a href="https://kubernetes.io/docs/concepts/workloads/controllers/deployment.md#progress-deadline-seconds" target="_blank"><code>spec.progressDeadlineSeconds</code></a>&#x3002;<code>spec.progressDeadlineSeconds</code> &#x8868;&#x793A; Deployment controller &#x7B49;&#x5F85;&#x591A;&#x5C11;&#x79D2;&#x624D;&#x80FD;&#x786E;&#x5B9A;&#xFF08;&#x901A;&#x8FC7; Deployment status&#xFF09;Deployment&#x8FDB;&#x7A0B;&#x662F;&#x5361;&#x4F4F;&#x7684;&#x3002;</p>
<p>&#x4E0B;&#x9762;&#x7684;<code>kubectl</code>&#x547D;&#x4EE4;&#x8BBE;&#x7F6E;<code>progressDeadlineSeconds</code> &#x4F7F; controller &#x5728; Deployment &#x5728;&#x8FDB;&#x5EA6;&#x5361;&#x4F4F;10&#x5206;&#x949F;&#x540E;&#x62A5;&#x544A;&#xFF1A;</p>
<pre><code>$ kubectl patch deployment/nginx-deployment -p &apos;{&quot;spec&quot;:{&quot;progressDeadlineSeconds&quot;:600}}&apos;
&quot;nginx-deployment&quot; patched
</code></pre><p>&#x5F53;&#x8D85;&#x8FC7;&#x622A;&#x6B62;&#x65F6;&#x95F4;&#x540E;&#xFF0C;Deployment controller &#x4F1A;&#x5728; Deployment &#x7684; <code>status.conditions</code>&#x4E2D;&#x589E;&#x52A0;&#x4E00;&#x6761;DeploymentCondition&#xFF0C;&#x5B83;&#x5305;&#x62EC;&#x5982;&#x4E0B;&#x5C5E;&#x6027;&#xFF1A;</p>
<ul>
<li>Type=Progressing</li>
<li>Status=False</li>
<li>Reason=ProgressDeadlineExceeded</li>
</ul>
<p>&#x6D4F;&#x89C8; <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/api-conventions.md#typical-status-properties" target="_blank">Kubernetes API conventions</a> &#x67E5;&#x770B;&#x5173;&#x4E8E;status conditions&#x7684;&#x66F4;&#x591A;&#x4FE1;&#x606F;&#x3002;</p>
<p><strong>&#x6CE8;&#x610F;&#xFF1A;</strong> kubernetes&#x9664;&#x4E86;&#x62A5;&#x544A;<code>Reason=ProgressDeadlineExceeded</code>&#x72B6;&#x6001;&#x4FE1;&#x606F;&#x5916;&#x4E0D;&#x4F1A;&#x5BF9;&#x5361;&#x4F4F;&#x7684; Deployment &#x505A;&#x4EFB;&#x4F55;&#x64CD;&#x4F5C;&#x3002;&#x66F4;&#x9AD8;&#x5C42;&#x6B21;&#x7684;&#x534F;&#x8C03;&#x5668;&#x53EF;&#x4EE5;&#x5229;&#x7528;&#x5B83;&#x5E76;&#x91C7;&#x53D6;&#x76F8;&#x5E94;&#x884C;&#x52A8;&#xFF0C;&#x4F8B;&#x5982;&#xFF0C;&#x56DE;&#x6EDA; Deployment &#x5230;&#x4E4B;&#x524D;&#x7684;&#x7248;&#x672C;&#x3002;</p>
<p><strong>&#x6CE8;&#x610F;&#xFF1A;</strong> &#x5982;&#x679C;&#x60A8;&#x6682;&#x505C;&#x4E86;&#x4E00;&#x4E2A; Deployment&#xFF0C;&#x5728;&#x6682;&#x505C;&#x7684;&#x8FD9;&#x6BB5;&#x65F6;&#x95F4;&#x5185;kubernetnes&#x4E0D;&#x4F1A;&#x68C0;&#x67E5;&#x60A8;&#x6307;&#x5B9A;&#x7684; deadline&#x3002;&#x60A8;&#x53EF;&#x4EE5;&#x5728; Deployment &#x7684; rollout &#x9014;&#x4E2D;&#x5B89;&#x5168;&#x7684;&#x6682;&#x505C;&#x5B83;&#xFF0C;&#x7136;&#x540E;&#x518D;&#x6062;&#x590D;&#x5B83;&#xFF0C;&#x8FD9;&#x4E0D;&#x4F1A;&#x89E6;&#x53D1;&#x8D85;&#x8FC7;deadline&#x7684;&#x72B6;&#x6001;&#x3002;</p>
<p>&#x60A8;&#x53EF;&#x80FD;&#x5728;&#x4F7F;&#x7528; Deployment &#x7684;&#x65F6;&#x5019;&#x9047;&#x5230;&#x4E00;&#x4E9B;&#x77ED;&#x6682;&#x7684;&#x9519;&#x8BEF;&#xFF0C;&#x8FD9;&#x4E9B;&#x53EF;&#x80FD;&#x662F;&#x7531;&#x4E8E;&#x60A8;&#x8BBE;&#x7F6E;&#x4E86;&#x592A;&#x77ED;&#x7684; timeout&#xFF0C;&#x4E5F;&#x6709;&#x53EF;&#x80FD;&#x662F;&#x56E0;&#x4E3A;&#x5404;&#x79CD;&#x5176;&#x4ED6;&#x9519;&#x8BEF;&#x5BFC;&#x81F4;&#x7684;&#x77ED;&#x6682;&#x9519;&#x8BEF;&#x3002;&#x4F8B;&#x5982;&#xFF0C;&#x5047;&#x8BBE;&#x60A8;&#x4F7F;&#x7528;&#x4E86;&#x65E0;&#x6548;&#x7684;&#x5F15;&#x7528;&#x3002;&#x5F53;&#x60A8; Describe Deployment &#x7684;&#x65F6;&#x5019;&#x53EF;&#x80FD;&#x4F1A;&#x6CE8;&#x610F;&#x5230;&#x5982;&#x4E0B;&#x4FE1;&#x606F;&#xFF1A;</p>
<pre><code>$ kubectl describe deployment nginx-deployment
&lt;...&gt;
Conditions:
Type Status Reason
---- ------ ------
Available True MinimumReplicasAvailable
Progressing True ReplicaSetUpdated
ReplicaFailure True FailedCreate
&lt;...&gt;
</code></pre><p>&#x6267;&#x884C; <code>kubectl get deployment nginx-deployment -o yaml</code>&#xFF0C;Deployement &#x7684;&#x72B6;&#x6001;&#x53EF;&#x80FD;&#x770B;&#x8D77;&#x6765;&#x50CF;&#x8FD9;&#x4E2A;&#x6837;&#x5B50;&#xFF1A;</p>
<pre><code class="lang-yaml"><span class="hljs-attr">status:</span>
<span class="hljs-attr"> availableReplicas:</span> <span class="hljs-number">2</span>
<span class="hljs-attr"> conditions:</span>
<span class="hljs-attr"> - lastTransitionTime:</span> <span class="hljs-number">2016</span><span class="hljs-bullet">-10</span><span class="hljs-bullet">-04</span>T12:<span class="hljs-number">25</span>:<span class="hljs-number">39</span>Z
<span class="hljs-attr"> lastUpdateTime:</span> <span class="hljs-number">2016</span><span class="hljs-bullet">-10</span><span class="hljs-bullet">-04</span>T12:<span class="hljs-number">25</span>:<span class="hljs-number">39</span>Z
<span class="hljs-attr"> message:</span> Replica set <span class="hljs-string">&quot;nginx-deployment-4262182780&quot;</span> is progressing.
<span class="hljs-attr"> reason:</span> ReplicaSetUpdated
<span class="hljs-attr"> status:</span> <span class="hljs-string">&quot;True&quot;</span>
<span class="hljs-attr"> type:</span> Progressing
<span class="hljs-attr"> - lastTransitionTime:</span> <span class="hljs-number">2016</span><span class="hljs-bullet">-10</span><span class="hljs-bullet">-04</span>T12:<span class="hljs-number">25</span>:<span class="hljs-number">42</span>Z
<span class="hljs-attr"> lastUpdateTime:</span> <span class="hljs-number">2016</span><span class="hljs-bullet">-10</span><span class="hljs-bullet">-04</span>T12:<span class="hljs-number">25</span>:<span class="hljs-number">42</span>Z
<span class="hljs-attr"> message:</span> Deployment has minimum availability.
<span class="hljs-attr"> reason:</span> MinimumReplicasAvailable
<span class="hljs-attr"> status:</span> <span class="hljs-string">&quot;True&quot;</span>
<span class="hljs-attr"> type:</span> Available
<span class="hljs-attr"> - lastTransitionTime:</span> <span class="hljs-number">2016</span><span class="hljs-bullet">-10</span><span class="hljs-bullet">-04</span>T12:<span class="hljs-number">25</span>:<span class="hljs-number">39</span>Z
<span class="hljs-attr"> lastUpdateTime:</span> <span class="hljs-number">2016</span><span class="hljs-bullet">-10</span><span class="hljs-bullet">-04</span>T12:<span class="hljs-number">25</span>:<span class="hljs-number">39</span>Z
<span class="hljs-attr"> message:</span> <span class="hljs-string">&apos;Error creating: pods &quot;nginx-deployment-4262182780-&quot; is forbidden: exceeded quota:
object-counts, requested: pods=1, used: pods=3, limited: pods=2&apos;</span>
<span class="hljs-attr"> reason:</span> FailedCreate
<span class="hljs-attr"> status:</span> <span class="hljs-string">&quot;True&quot;</span>
<span class="hljs-attr"> type:</span> ReplicaFailure
<span class="hljs-attr"> observedGeneration:</span> <span class="hljs-number">3</span>
<span class="hljs-attr"> replicas:</span> <span class="hljs-number">2</span>
<span class="hljs-attr"> unavailableReplicas:</span> <span class="hljs-number">2</span>
</code></pre>
<p>&#x6700;&#x7EC8;&#xFF0C;&#x4E00;&#x65E6;&#x8D85;&#x8FC7; Deployment &#x8FDB;&#x7A0B;&#x7684; deadline&#xFF0C;kuberentes &#x4F1A;&#x66F4;&#x65B0;&#x72B6;&#x6001;&#x548C;&#x5BFC;&#x81F4; Progressing &#x72B6;&#x6001;&#x7684;&#x539F;&#x56E0;&#xFF1A;</p>
<pre><code>Conditions:
Type Status Reason
---- ------ ------
Available True MinimumReplicasAvailable
Progressing False ProgressDeadlineExceeded
ReplicaFailure True FailedCreate
</code></pre><p>&#x60A8;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;&#x7F29;&#x5BB9; Deployment&#x7684;&#x65B9;&#x5F0F;&#x89E3;&#x51B3;&#x914D;&#x989D;&#x4E0D;&#x8DB3;&#x7684;&#x95EE;&#x9898;&#xFF0C;&#x6216;&#x8005;&#x589E;&#x52A0;&#x60A8;&#x7684; namespace &#x7684;&#x914D;&#x989D;&#x3002;&#x5982;&#x679C;&#x60A8;&#x6EE1;&#x8DB3;&#x4E86;&#x914D;&#x989D;&#x6761;&#x4EF6;&#x540E;&#xFF0C;Deployment controller &#x5C31;&#x4F1A;&#x5B8C;&#x6210;&#x60A8;&#x7684; Deployment rollout&#xFF0C;&#x60A8;&#x5C06;&#x770B;&#x5230; Deployment &#x7684;&#x72B6;&#x6001;&#x66F4;&#x65B0;&#x4E3A;&#x6210;&#x529F;&#x72B6;&#x6001;&#xFF08;<code>Status=True</code>&#x5E76;&#x4E14;<code>Reason=NewReplicaSetAvailable</code>&#xFF09;&#x3002;</p>
<pre><code>Conditions:
Type Status Reason
---- ------ ------
Available True MinimumReplicasAvailable
Progressing True NewReplicaSetAvailable
</code></pre><p><code>Type=Available</code>&#x3001; <code>Status=True</code> &#x4EE5;&#x4E3A;&#x8FD9;&#x60A8;&#x7684;Deployment&#x6709;&#x6700;&#x5C0F;&#x53EF;&#x7528;&#x6027;&#x3002; &#x6700;&#x5C0F;&#x53EF;&#x7528;&#x6027;&#x662F;&#x5728;Deployment&#x7B56;&#x7565;&#x4E2D;&#x6307;&#x5B9A;&#x7684;&#x53C2;&#x6570;&#x3002;<code>Type=Progressing</code> &#x3001; <code>Status=True</code>&#x610F;&#x5473;&#x7740;&#x60A8;&#x7684;Deployment &#x6216;&#x8005;&#x5728;&#x90E8;&#x7F72;&#x8FC7;&#x7A0B;&#x4E2D;&#xFF0C;&#x6216;&#x8005;&#x5DF2;&#x7ECF;&#x6210;&#x529F;&#x90E8;&#x7F72;&#xFF0C;&#x8FBE;&#x5230;&#x4E86;&#x671F;&#x671B;&#x7684;&#x6700;&#x5C11;&#x7684;&#x53EF;&#x7528;replica&#x6570;&#x91CF;&#xFF08;&#x67E5;&#x770B;&#x7279;&#x5B9A;&#x72B6;&#x6001;&#x7684;Reason&#x2014;&#x2014;&#x5728;&#x6211;&#x4EEC;&#x7684;&#x4F8B;&#x5B50;&#x4E2D;<code>Reason=NewReplicaSetAvailable</code> &#x610F;&#x5473;&#x7740;Deployment&#x5DF2;&#x7ECF;&#x5B8C;&#x6210;&#xFF09;&#x3002;</p>
<p>&#x60A8;&#x53EF;&#x4EE5;&#x4F7F;&#x7528;<code>kubectl rollout status</code>&#x547D;&#x4EE4;&#x67E5;&#x770B;Deployment&#x8FDB;&#x7A0B;&#x662F;&#x5426;&#x5931;&#x8D25;&#x3002;&#x5F53;Deployment&#x8FC7;&#x7A0B;&#x8D85;&#x8FC7;&#x4E86;deadline&#xFF0C;<code>kubectl rollout status</code>&#x5C06;&#x8FD4;&#x56DE;&#x975E;0&#x7684;exit code&#x3002;</p>
<pre><code>$ kubectl rollout status deploy/nginx
Waiting for rollout to finish: 2 out of 3 new replicas have been updated...
error: deployment &quot;nginx&quot; exceeded its progress deadline
$ echo $?
1
</code></pre><h3 id="&#x64CD;&#x4F5C;&#x5931;&#x8D25;&#x7684;-deployment">&#x64CD;&#x4F5C;&#x5931;&#x8D25;&#x7684; Deployment</h3>
<p>&#x6240;&#x6709;&#x5BF9;&#x5B8C;&#x6210;&#x7684; Deployment &#x7684;&#x64CD;&#x4F5C;&#x90FD;&#x9002;&#x7528;&#x4E8E;&#x5931;&#x8D25;&#x7684; Deployment&#x3002;&#x60A8;&#x53EF;&#x4EE5;&#x5BF9;&#x5B83;&#x6269;/&#x7F29;&#x5BB9;&#xFF0C;&#x56DE;&#x9000;&#x5230;&#x5386;&#x53F2;&#x7248;&#x672C;&#xFF0C;&#x60A8;&#x751A;&#x81F3;&#x53EF;&#x4EE5;&#x591A;&#x6B21;&#x6682;&#x505C;&#x5B83;&#x6765;&#x5E94;&#x7528; Deployment pod template&#x3002;</p>
<h2 id="&#x6E05;&#x7406;policy">&#x6E05;&#x7406;Policy</h2>
<p>&#x60A8;&#x53EF;&#x4EE5;&#x8BBE;&#x7F6E; Deployment &#x4E2D;&#x7684; <code>.spec.revisionHistoryLimit</code> &#x9879;&#x6765;&#x6307;&#x5B9A;&#x4FDD;&#x7559;&#x591A;&#x5C11;&#x65E7;&#x7684; ReplicaSet&#x3002; &#x4F59;&#x4E0B;&#x7684;&#x5C06;&#x5728;&#x540E;&#x53F0;&#x88AB;&#x5F53;&#x4F5C;&#x5783;&#x573E;&#x6536;&#x96C6;&#x3002;&#x9ED8;&#x8BA4;&#x7684;&#xFF0C;&#x6240;&#x6709;&#x7684; revision &#x5386;&#x53F2;&#x5C31;&#x90FD;&#x4F1A;&#x88AB;&#x4FDD;&#x7559;&#x3002;&#x5728;&#x672A;&#x6765;&#x7684;&#x7248;&#x672C;&#x4E2D;&#xFF0C;&#x5C06;&#x4F1A;&#x66F4;&#x6539;&#x4E3A;2&#x3002;</p>
<p><strong>&#x6CE8;&#x610F;&#xFF1A;</strong> &#x5C06;&#x8BE5;&#x503C;&#x8BBE;&#x7F6E;&#x4E3A;0&#xFF0C;&#x5C06;&#x5BFC;&#x81F4;&#x6240;&#x6709;&#x7684; Deployment &#x5386;&#x53F2;&#x8BB0;&#x5F55;&#x90FD;&#x4F1A;&#x88AB;&#x6E05;&#x9664;&#xFF0C;&#x8BE5; Deployment &#x5C31;&#x65E0;&#x6CD5;&#x518D;&#x56DE;&#x9000;&#x4E86;&#x3002;</p>
<h2 id="&#x7528;&#x4F8B;">&#x7528;&#x4F8B;</h2>
<h3 id="&#x91D1;&#x4E1D;&#x96C0;-deployment">&#x91D1;&#x4E1D;&#x96C0; Deployment</h3>
<p>&#x5982;&#x679C;&#x60A8;&#x60F3;&#x8981;&#x4F7F;&#x7528; Deployment &#x5BF9;&#x90E8;&#x5206;&#x7528;&#x6237;&#x6216;&#x670D;&#x52A1;&#x5668;&#x53D1;&#x5E03; release&#xFF0C;&#x60A8;&#x53EF;&#x4EE5;&#x521B;&#x5EFA;&#x591A;&#x4E2A; Deployment&#xFF0C;&#x6BCF;&#x4E2A; Deployment &#x5BF9;&#x5E94;&#x4E00;&#x4E2A; release&#xFF0C;&#x53C2;&#x7167; <a href="https://kubernetes.io/docs/concepts/cluster-administration/manage-deployment/#canary-deployments" target="_blank">managing resources</a> &#x4E2D;&#x5BF9;&#x91D1;&#x4E1D;&#x96C0;&#x6A21;&#x5F0F;&#x7684;&#x63CF;&#x8FF0;&#x3002;</p>
<h2 id="&#x7F16;&#x5199;-deployment-spec">&#x7F16;&#x5199; Deployment Spec</h2>
<p>&#x5728;&#x6240;&#x6709;&#x7684; Kubernetes &#x914D;&#x7F6E;&#x4E2D;&#xFF0C;Deployment &#x4E5F;&#x9700;&#x8981;<code>apiVersion</code>&#xFF0C;<code>kind</code>&#x548C;<code>metadata</code>&#x8FD9;&#x4E9B;&#x914D;&#x7F6E;&#x9879;&#x3002;&#x914D;&#x7F6E;&#x6587;&#x4EF6;&#x7684;&#x901A;&#x7528;&#x4F7F;&#x7528;&#x8BF4;&#x660E;&#x67E5;&#x770B; <a href="https://kubernetes.io/docs/tasks/run-application/run-stateless-application-deployment/" target="_blank">&#x90E8;&#x7F72;&#x5E94;&#x7528;</a>&#xFF0C;&#x914D;&#x7F6E;&#x5BB9;&#x5668;&#xFF0C;&#x548C; <a href="https://kubernetes.io/docs/tutorials/object-management-kubectl/object-management/" target="_blank">&#x4F7F;&#x7528; kubectl &#x7BA1;&#x7406;&#x8D44;&#x6E90; </a> &#x6587;&#x6863;&#x3002;</p>
<p>Deployment&#x4E5F;&#x9700;&#x8981; <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/api-conventions.md#spec-and-status" target="_blank"><code>.spec</code> section</a>.</p>
<h3 id="pod-template">Pod Template</h3>
<p> <code>.spec.template</code> &#x662F; <code>.spec</code>&#x4E2D;&#x552F;&#x4E00;&#x8981;&#x6C42;&#x7684;&#x5B57;&#x6BB5;&#x3002;</p>
<p><code>.spec.template</code> &#x662F; <a href="https://kubernetes.io/docs/user-guide/replication-controller/#pod-template" target="_blank">pod template</a>. &#x5B83;&#x8DDF; <a href="https://kubernetes.io/docs/user-guide/pods" target="_blank">Pod</a>&#x6709;&#x4E00;&#x6A21;&#x4E00;&#x6837;&#x7684;schema&#xFF0C;&#x9664;&#x4E86;&#x5B83;&#x662F;&#x5D4C;&#x5957;&#x7684;&#x5E76;&#x4E14;&#x4E0D;&#x9700;&#x8981;<code>apiVersion</code> &#x548C; <code>kind</code>&#x5B57;&#x6BB5;&#x3002;</p>
<p>&#x53E6;&#x5916;&#x4E3A;&#x4E86;&#x5212;&#x5206;Pod&#x7684;&#x8303;&#x56F4;&#xFF0C;Deployment&#x4E2D;&#x7684;pod template&#x5FC5;&#x987B;&#x6307;&#x5B9A;&#x9002;&#x5F53;&#x7684;label&#xFF08;&#x4E0D;&#x8981;&#x8DDF;&#x5176;&#x4ED6;controller&#x91CD;&#x590D;&#x4E86;&#xFF0C;&#x53C2;&#x8003;<a href="https://kubernetes.io/docs/concepts/workloads/controllers/deployment.md#selector" target="_blank">selector</a>&#xFF09;&#x548C;&#x9002;&#x5F53;&#x7684;&#x91CD;&#x542F;&#x7B56;&#x7565;&#x3002;</p>
<p><a href="https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle" target="_blank"><code>.spec.template.spec.restartPolicy</code></a> &#x53EF;&#x4EE5;&#x8BBE;&#x7F6E;&#x4E3A; <code>Always</code> , &#x5982;&#x679C;&#x4E0D;&#x6307;&#x5B9A;&#x7684;&#x8BDD;&#x8FD9;&#x5C31;&#x662F;&#x9ED8;&#x8BA4;&#x914D;&#x7F6E;&#x3002;</p>
<h3 id="replicas">Replicas</h3>
<p><code>.spec.replicas</code> &#x662F;&#x53EF;&#x4EE5;&#x9009;&#x5B57;&#x6BB5;&#xFF0C;&#x6307;&#x5B9A;&#x671F;&#x671B;&#x7684;pod&#x6570;&#x91CF;&#xFF0C;&#x9ED8;&#x8BA4;&#x662F;1&#x3002;</p>
<h3 id="selector">Selector</h3>
<p><code>.spec.selector</code>&#x662F;&#x53EF;&#x9009;&#x5B57;&#x6BB5;&#xFF0C;&#x7528;&#x6765;&#x6307;&#x5B9A; <a href="https://kubernetes.io/docs/concepts/overview/working-with-objects/labels" target="_blank">label selector</a> &#xFF0C;&#x5708;&#x5B9A;Deployment&#x7BA1;&#x7406;&#x7684;pod&#x8303;&#x56F4;&#x3002;</p>
<p>&#x5982;&#x679C;&#x88AB;&#x6307;&#x5B9A;&#xFF0C; <code>.spec.selector</code> &#x5FC5;&#x987B;&#x5339;&#x914D; <code>.spec.template.metadata.labels</code>&#xFF0C;&#x5426;&#x5219;&#x5B83;&#x5C06;&#x88AB;API&#x62D2;&#x7EDD;&#x3002;&#x5982;&#x679C; <code>.spec.selector</code> &#x6CA1;&#x6709;&#x88AB;&#x6307;&#x5B9A;&#xFF0C; <code>.spec.selector.matchLabels</code> &#x9ED8;&#x8BA4;&#x662F; <code>.spec.template.metadata.labels</code>&#x3002;</p>
<p>&#x5728;Pod&#x7684;template&#x8DDF;<code>.spec.template</code>&#x4E0D;&#x540C;&#x6216;&#x8005;&#x6570;&#x91CF;&#x8D85;&#x8FC7;&#x4E86;<code>.spec.replicas</code>&#x89C4;&#x5B9A;&#x7684;&#x6570;&#x91CF;&#x7684;&#x60C5;&#x51B5;&#x4E0B;&#xFF0C;Deployment&#x4F1A;&#x6740;&#x6389;label&#x8DDF;selector&#x4E0D;&#x540C;&#x7684;Pod&#x3002;</p>
<p><strong>&#x6CE8;&#x610F;&#xFF1A;</strong> &#x60A8;&#x4E0D;&#x5E94;&#x8BE5;&#x518D;&#x521B;&#x5EFA;&#x5176;&#x4ED6;label&#x8DDF;&#x8FD9;&#x4E2A;selector&#x5339;&#x914D;&#x7684;pod&#xFF0C;&#x6216;&#x8005;&#x901A;&#x8FC7;&#x5176;&#x4ED6;Deployment&#xFF0C;&#x6216;&#x8005;&#x901A;&#x8FC7;&#x5176;&#x4ED6;Controller&#xFF0C;&#x4F8B;&#x5982;ReplicaSet&#x548C;ReplicationController&#x3002;&#x5426;&#x5219;&#x8BE5;Deployment&#x4F1A;&#x88AB;&#x628A;&#x5B83;&#x4EEC;&#x5F53;&#x6210;&#x90FD;&#x662F;&#x81EA;&#x5DF1;&#x521B;&#x5EFA;&#x7684;&#x3002;Kubernetes&#x4E0D;&#x4F1A;&#x963B;&#x6B62;&#x60A8;&#x8FD9;&#x4E48;&#x505A;&#x3002;</p>
<p>&#x5982;&#x679C;&#x60A8;&#x6709;&#x591A;&#x4E2A;controller&#x4F7F;&#x7528;&#x4E86;&#x91CD;&#x590D;&#x7684;selector&#xFF0C;controller&#x4EEC;&#x5C31;&#x4F1A;&#x4E92;&#x76F8;&#x6253;&#x67B6;&#x5E76;&#x5BFC;&#x81F4;&#x4E0D;&#x6B63;&#x786E;&#x7684;&#x884C;&#x4E3A;&#x3002;</p>
<h3 id="&#x7B56;&#x7565;">&#x7B56;&#x7565;</h3>
<p><code>.spec.strategy</code> &#x6307;&#x5B9A;&#x65B0;&#x7684;Pod&#x66FF;&#x6362;&#x65E7;&#x7684;Pod&#x7684;&#x7B56;&#x7565;&#x3002; <code>.spec.strategy.type</code> &#x53EF;&#x4EE5;&#x662F;&quot;Recreate&quot;&#x6216;&#x8005;&#x662F; &quot;RollingUpdate&quot;&#x3002;&quot;RollingUpdate&quot;&#x662F;&#x9ED8;&#x8BA4;&#x503C;&#x3002;</p>
<h4 id="recreate-deployment">Recreate Deployment</h4>
<p><code>.spec.strategy.type==Recreate</code>&#x65F6;&#xFF0C;&#x5728;&#x521B;&#x5EFA;&#x51FA;&#x65B0;&#x7684;Pod&#x4E4B;&#x524D;&#x4F1A;&#x5148;&#x6740;&#x6389;&#x6240;&#x6709;&#x5DF2;&#x5B58;&#x5728;&#x7684;Pod&#x3002;</p>
<h4 id="rolling-update-deployment">Rolling Update Deployment</h4>
<p><code>.spec.strategy.type==RollingUpdate</code>&#x65F6;&#xFF0C;Deployment&#x4F7F;&#x7528;<a href="https://kubernetes.io/docs/tasks/run-application/rolling-update-replication-controller" target="_blank">rolling update</a> &#x7684;&#x65B9;&#x5F0F;&#x66F4;&#x65B0;Pod &#x3002;&#x60A8;&#x53EF;&#x4EE5;&#x6307;&#x5B9A;<code>maxUnavailable</code> &#x548C; <code>maxSurge</code> &#x6765;&#x63A7;&#x5236; rolling update &#x8FDB;&#x7A0B;&#x3002;</p>
<h5 id="max-unavailable">Max Unavailable</h5>
<p><code>.spec.strategy.rollingUpdate.maxUnavailable</code> &#x662F;&#x53EF;&#x9009;&#x914D;&#x7F6E;&#x9879;&#xFF0C;&#x7528;&#x6765;&#x6307;&#x5B9A;&#x5728;&#x5347;&#x7EA7;&#x8FC7;&#x7A0B;&#x4E2D;&#x4E0D;&#x53EF;&#x7528;Pod&#x7684;&#x6700;&#x5927;&#x6570;&#x91CF;&#x3002;&#x8BE5;&#x503C;&#x53EF;&#x4EE5;&#x662F;&#x4E00;&#x4E2A;&#x7EDD;&#x5BF9;&#x503C;&#xFF08;&#x4F8B;&#x5982;5&#xFF09;&#xFF0C;&#x4E5F;&#x53EF;&#x4EE5;&#x662F;&#x671F;&#x671B;Pod&#x6570;&#x91CF;&#x7684;&#x767E;&#x5206;&#x6BD4;&#xFF08;&#x4F8B;&#x5982;10%&#xFF09;&#x3002;&#x901A;&#x8FC7;&#x8BA1;&#x7B97;&#x767E;&#x5206;&#x6BD4;&#x7684;&#x7EDD;&#x5BF9;&#x503C;&#x5411;&#x4E0B;&#x53D6;&#x6574;&#x3002;&#x5982;&#x679C;<code>.spec.strategy.rollingUpdate.maxSurge</code> &#x4E3A;0&#x65F6;&#xFF0C;&#x8FD9;&#x4E2A;&#x503C;&#x4E0D;&#x53EF;&#x4EE5;&#x4E3A;0&#x3002;&#x9ED8;&#x8BA4;&#x503C;&#x662F;1&#x3002;</p>
<p>&#x4F8B;&#x5982;&#xFF0C;&#x8BE5;&#x503C;&#x8BBE;&#x7F6E;&#x6210;30%&#xFF0C;&#x542F;&#x52A8;rolling update&#x540E;&#x65E7;&#x7684;ReplicatSet&#x5C06;&#x4F1A;&#x7ACB;&#x5373;&#x7F29;&#x5BB9;&#x5230;&#x671F;&#x671B;&#x7684;Pod&#x6570;&#x91CF;&#x7684;70%&#x3002;&#x65B0;&#x7684;Pod ready&#x540E;&#xFF0C;&#x968F;&#x7740;&#x65B0;&#x7684;ReplicaSet&#x7684;&#x6269;&#x5BB9;&#xFF0C;&#x65E7;&#x7684;ReplicaSet&#x4F1A;&#x8FDB;&#x4E00;&#x6B65;&#x7F29;&#x5BB9;&#xFF0C;&#x786E;&#x4FDD;&#x5728;&#x5347;&#x7EA7;&#x7684;&#x6240;&#x6709;&#x65F6;&#x523B;&#x53EF;&#x4EE5;&#x7528;&#x7684;Pod&#x6570;&#x91CF;&#x81F3;&#x5C11;&#x662F;&#x671F;&#x671B;Pod&#x6570;&#x91CF;&#x7684;70%&#x3002;</p>
<h5 id="max-surge">Max Surge</h5>
<p><code>.spec.strategy.rollingUpdate.maxSurge</code> &#x662F;&#x53EF;&#x9009;&#x914D;&#x7F6E;&#x9879;&#xFF0C;&#x7528;&#x6765;&#x6307;&#x5B9A;&#x53EF;&#x4EE5;&#x8D85;&#x8FC7;&#x671F;&#x671B;&#x7684;Pod&#x6570;&#x91CF;&#x7684;&#x6700;&#x5927;&#x4E2A;&#x6570;&#x3002;&#x8BE5;&#x503C;&#x53EF;&#x4EE5;&#x662F;&#x4E00;&#x4E2A;&#x7EDD;&#x5BF9;&#x503C;&#xFF08;&#x4F8B;&#x5982;5&#xFF09;&#x6216;&#x8005;&#x662F;&#x671F;&#x671B;&#x7684;Pod&#x6570;&#x91CF;&#x7684;&#x767E;&#x5206;&#x6BD4;&#xFF08;&#x4F8B;&#x5982;10%&#xFF09;&#x3002;&#x5F53;<code>MaxUnavailable</code>&#x4E3A;0&#x65F6;&#x8BE5;&#x503C;&#x4E0D;&#x53EF;&#x4EE5;&#x4E3A;0&#x3002;&#x901A;&#x8FC7;&#x767E;&#x5206;&#x6BD4;&#x8BA1;&#x7B97;&#x7684;&#x7EDD;&#x5BF9;&#x503C;&#x5411;&#x4E0A;&#x53D6;&#x6574;&#x3002;&#x9ED8;&#x8BA4;&#x503C;&#x662F;1&#x3002;</p>
<p>&#x4F8B;&#x5982;&#xFF0C;&#x8BE5;&#x503C;&#x8BBE;&#x7F6E;&#x6210;30%&#xFF0C;&#x542F;&#x52A8;rolling update&#x540E;&#x65B0;&#x7684;ReplicatSet&#x5C06;&#x4F1A;&#x7ACB;&#x5373;&#x6269;&#x5BB9;&#xFF0C;&#x65B0;&#x8001;Pod&#x7684;&#x603B;&#x6570;&#x4E0D;&#x80FD;&#x8D85;&#x8FC7;&#x671F;&#x671B;&#x7684;Pod&#x6570;&#x91CF;&#x7684;130%&#x3002;&#x65E7;&#x7684;Pod&#x88AB;&#x6740;&#x6389;&#x540E;&#xFF0C;&#x65B0;&#x7684;ReplicaSet&#x5C06;&#x7EE7;&#x7EED;&#x6269;&#x5BB9;&#xFF0C;&#x65E7;&#x7684;ReplicaSet&#x4F1A;&#x8FDB;&#x4E00;&#x6B65;&#x7F29;&#x5BB9;&#xFF0C;&#x786E;&#x4FDD;&#x5728;&#x5347;&#x7EA7;&#x7684;&#x6240;&#x6709;&#x65F6;&#x523B;&#x6240;&#x6709;&#x7684;Pod&#x6570;&#x91CF;&#x548C;&#x4E0D;&#x4F1A;&#x8D85;&#x8FC7;&#x671F;&#x671B;Pod&#x6570;&#x91CF;&#x7684;130%&#x3002;</p>
<h3 id="progress-deadline-seconds">Progress Deadline Seconds</h3>
<p><code>.spec.progressDeadlineSeconds</code> &#x662F;&#x53EF;&#x9009;&#x914D;&#x7F6E;&#x9879;&#xFF0C;&#x7528;&#x6765;&#x6307;&#x5B9A;&#x5728;&#x7CFB;&#x7EDF;&#x62A5;&#x544A;Deployment&#x7684;<a href="https://kubernetes.io/docs/concepts/workloads/controllers/deployment.md#failed-deployment" target="_blank">failed progressing</a> &#x2014;&#x2014;&#x8868;&#x73B0;&#x4E3A;resource&#x7684;&#x72B6;&#x6001;&#x4E2D;<code>type=Progressing</code>&#x3001;<code>Status=False</code>&#x3001; <code>Reason=ProgressDeadlineExceeded</code>&#x524D;&#x53EF;&#x4EE5;&#x7B49;&#x5F85;&#x7684;Deployment&#x8FDB;&#x884C;&#x7684;&#x79D2;&#x6570;&#x3002;Deployment controller&#x4F1A;&#x7EE7;&#x7EED;&#x91CD;&#x8BD5;&#x8BE5;Deployment&#x3002;&#x672A;&#x6765;&#xFF0C;&#x5728;&#x5B9E;&#x73B0;&#x4E86;&#x81EA;&#x52A8;&#x56DE;&#x6EDA;&#x540E;&#xFF0C; deployment controller&#x5728;&#x89C2;&#x5BDF;&#x5230;&#x8FD9;&#x79CD;&#x72B6;&#x6001;&#x65F6;&#x5C31;&#x4F1A;&#x81EA;&#x52A8;&#x56DE;&#x6EDA;&#x3002;</p>
<p>&#x5982;&#x679C;&#x8BBE;&#x7F6E;&#x8BE5;&#x53C2;&#x6570;&#xFF0C;&#x8BE5;&#x503C;&#x5FC5;&#x987B;&#x5927;&#x4E8E; <code>.spec.minReadySeconds</code>&#x3002;</p>
<h3 id="min-ready-seconds">Min Ready Seconds</h3>
<p><code>.spec.minReadySeconds</code>&#x662F;&#x4E00;&#x4E2A;&#x53EF;&#x9009;&#x914D;&#x7F6E;&#x9879;&#xFF0C;&#x7528;&#x6765;&#x6307;&#x5B9A;&#x6CA1;&#x6709;&#x4EFB;&#x4F55;&#x5BB9;&#x5668;crash&#x7684;Pod&#x5E76;&#x88AB;&#x8BA4;&#x4E3A;&#x662F;&#x53EF;&#x7528;&#x72B6;&#x6001;&#x7684;&#x6700;&#x5C0F;&#x79D2;&#x6570;&#x3002;&#x9ED8;&#x8BA4;&#x662F;0&#xFF08;Pod&#x5728;ready&#x540E;&#x5C31;&#x4F1A;&#x88AB;&#x8BA4;&#x4E3A;&#x662F;&#x53EF;&#x7528;&#x72B6;&#x6001;&#xFF09;&#x3002;&#x8FDB;&#x4E00;&#x6B65;&#x4E86;&#x89E3;&#x4EC0;&#x4E48;&#x4EC0;&#x4E48;&#x540E;Pod&#x4F1A;&#x88AB;&#x8BA4;&#x4E3A;&#x662F;ready&#x72B6;&#x6001;&#xFF0C;&#x53C2;&#x9605; <a href="https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/#container-probes" target="_blank">Container Probes</a>&#x3002;</p>
<h3 id="rollback-to">Rollback To</h3>
<p><code>.spec.rollbackTo</code> &#x662F;&#x4E00;&#x4E2A;&#x53EF;&#x4EE5;&#x9009;&#x914D;&#x7F6E;&#x9879;&#xFF0C;&#x7528;&#x6765;&#x914D;&#x7F6E;Deployment&#x56DE;&#x9000;&#x7684;&#x914D;&#x7F6E;&#x3002;&#x8BBE;&#x7F6E;&#x8BE5;&#x53C2;&#x6570;&#x5C06;&#x89E6;&#x53D1;&#x56DE;&#x9000;&#x64CD;&#x4F5C;&#xFF0C;&#x6BCF;&#x6B21;&#x56DE;&#x9000;&#x5B8C;&#x6210;&#x540E;&#xFF0C;&#x8BE5;&#x503C;&#x5C31;&#x4F1A;&#x88AB;&#x6E05;&#x9664;&#x3002;</p>
<h4 id="revision">Revision</h4>
<p><code>.spec.rollbackTo.revision</code>&#x662F;&#x4E00;&#x4E2A;&#x53EF;&#x9009;&#x914D;&#x7F6E;&#x9879;&#xFF0C;&#x7528;&#x6765;&#x6307;&#x5B9A;&#x56DE;&#x9000;&#x5230;&#x7684;revision&#x3002;&#x9ED8;&#x8BA4;&#x662F;0&#xFF0C;&#x610F;&#x5473;&#x7740;&#x56DE;&#x9000;&#x5230;&#x4E0A;&#x4E00;&#x4E2A;revision&#x3002;</p>
<h3 id="revision-history-limit">Revision History Limit</h3>
<p>Deployment revision history&#x5B58;&#x50A8;&#x5728;&#x5B83;&#x63A7;&#x5236;&#x7684;ReplicaSets&#x4E2D;&#x3002;</p>
<p><code>.spec.revisionHistoryLimit</code> &#x662F;&#x4E00;&#x4E2A;&#x53EF;&#x9009;&#x914D;&#x7F6E;&#x9879;&#xFF0C;&#x7528;&#x6765;&#x6307;&#x5B9A;&#x53EF;&#x4EE5;&#x4FDD;&#x7559;&#x7684;&#x65E7;&#x7684;ReplicaSet&#x6570;&#x91CF;&#x3002;&#x8BE5;&#x7406;&#x60F3;&#x503C;&#x53D6;&#x51B3;&#x4E8E;&#x5FC3;Deployment&#x7684;&#x9891;&#x7387;&#x548C;&#x7A33;&#x5B9A;&#x6027;&#x3002;&#x5982;&#x679C;&#x8BE5;&#x503C;&#x6CA1;&#x6709;&#x8BBE;&#x7F6E;&#x7684;&#x8BDD;&#xFF0C;&#x9ED8;&#x8BA4;&#x6240;&#x6709;&#x65E7;&#x7684;Replicaset&#x6216;&#x4F1A;&#x88AB;&#x4FDD;&#x7559;&#xFF0C;&#x5C06;&#x8D44;&#x6E90;&#x5B58;&#x50A8;&#x5728;etcd&#x4E2D;&#xFF0C;&#x662F;&#x7528;<code>kubectl get rs</code>&#x67E5;&#x770B;&#x8F93;&#x51FA;&#x3002;&#x6BCF;&#x4E2A;Deployment&#x7684;&#x8BE5;&#x914D;&#x7F6E;&#x90FD;&#x4FDD;&#x5B58;&#x5728;ReplicaSet&#x4E2D;&#xFF0C;&#x7136;&#x800C;&#xFF0C;&#x4E00;&#x65E6;&#x60A8;&#x5220;&#x9664;&#x7684;&#x65E7;&#x7684;RepelicaSet&#xFF0C;&#x60A8;&#x7684;Deployment&#x5C31;&#x65E0;&#x6CD5;&#x518D;&#x56DE;&#x9000;&#x5230;&#x90A3;&#x4E2A;revison&#x4E86;&#x3002;</p>
<p>&#x5982;&#x679C;&#x60A8;&#x5C06;&#x8BE5;&#x503C;&#x8BBE;&#x7F6E;&#x4E3A;0&#xFF0C;&#x6240;&#x6709;&#x5177;&#x6709;0&#x4E2A;replica&#x7684;ReplicaSet&#x90FD;&#x4F1A;&#x88AB;&#x5220;&#x9664;&#x3002;&#x5728;&#x8FD9;&#x79CD;&#x60C5;&#x51B5;&#x4E0B;&#xFF0C;&#x65B0;&#x7684;Deployment rollout&#x65E0;&#x6CD5;&#x64A4;&#x9500;&#xFF0C;&#x56E0;&#x4E3A;revision history&#x90FD;&#x88AB;&#x6E05;&#x7406;&#x6389;&#x4E86;&#x3002;</p>
<h3 id="paused">Paused</h3>
<p><code>.spec.paused</code>&#x662F;&#x53EF;&#x4EE5;&#x53EF;&#x9009;&#x914D;&#x7F6E;&#x9879;&#xFF0C;boolean&#x503C;&#x3002;&#x7528;&#x6765;&#x6307;&#x5B9A;&#x6682;&#x505C;&#x548C;&#x6062;&#x590D;Deployment&#x3002;Paused&#x548C;&#x6CA1;&#x6709;paused&#x7684;Deployment&#x4E4B;&#x95F4;&#x7684;&#x552F;&#x4E00;&#x533A;&#x522B;&#x5C31;&#x662F;&#xFF0C;&#x6240;&#x6709;&#x5BF9;paused deployment&#x4E2D;&#x7684;PodTemplateSpec&#x7684;&#x4FEE;&#x6539;&#x90FD;&#x4E0D;&#x4F1A;&#x89E6;&#x53D1;&#x65B0;&#x7684;rollout&#x3002;Deployment&#x88AB;&#x521B;&#x5EFA;&#x4E4B;&#x540E;&#x9ED8;&#x8BA4;&#x662F;&#x975E;paused&#x3002;</p>
<h2 id="deployment-&#x7684;&#x66FF;&#x4EE3;&#x9009;&#x62E9;">Deployment &#x7684;&#x66FF;&#x4EE3;&#x9009;&#x62E9;</h2>
<h3 id="kubectl-rolling-update">kubectl rolling update</h3>
<p><a href="https://kubernetes.io/docs/user-guide/kubectl/v1.6/#rolling-update" target="_blank">Kubectl rolling update</a> &#x867D;&#x7136;&#x4F7F;&#x7528;&#x7C7B;&#x4F3C;&#x7684;&#x65B9;&#x5F0F;&#x66F4;&#x65B0;Pod&#x548C;ReplicationController&#x3002;&#x4F46;&#x662F;&#x6211;&#x4EEC;&#x63A8;&#x8350;&#x4F7F;&#x7528;Deployment&#xFF0C;&#x56E0;&#x4E3A;&#x5B83;&#x662F;&#x58F0;&#x660E;&#x5F0F;&#x7684;&#xFF0C;&#x5BA2;&#x6237;&#x7AEF;&#x4FA7;&#xFF0C;&#x5177;&#x6709;&#x9644;&#x52A0;&#x7279;&#x6027;&#xFF0C;&#x4F8B;&#x5982;&#x5373;&#x4F7F;&#x6EDA;&#x52A8;&#x5347;&#x7EA7;&#x7ED3;&#x675F;&#x540E;&#x4E5F;&#x53EF;&#x4EE5;&#x56DE;&#x6EDA;&#x5230;&#x4EFB;&#x4F55;&#x5386;&#x53F2;&#x7248;&#x672C;&#x3002;</p>
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