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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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2.2.14 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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3.1 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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3.2.3 管理namespace中的资源配额
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3.2 命令使用
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2017-11-03 17:48:10 +08:00
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3.2.1 docker用户过度到kubectl命令行指南
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2017-10-23 13:40:58 +08:00
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2017-11-03 17:48:10 +08:00
3.2.2 kubectl命令概览
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3.2.3 kubectl命令技巧大全
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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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2017-11-02 16:33:01 +08:00
3.3.4 创建用户认证授权的kubeconfig文件
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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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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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3.5.3 使用StatefulSet部署用状态应用
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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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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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4.1.8 安装dashboard插件
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4.1.9 安装heapster插件
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4.1.10 安装EFK插件
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4.2 服务发现与负载均衡
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4.2.1 安装Traefik ingress
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4.2.2 分布式负载测试
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4.2.3 网络和集群性能测试
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4.2.4 边缘节点配置
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2017-10-27 19:16:49 +08:00
4.2.5 安装Nginx ingress
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2017-10-23 13:40:58 +08:00
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4.3 运维管理
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<li class="chapter " data-level="1.5.3.1" data-path="../practice/service-rolling-update.html">
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4.3.1 服务滚动升级
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4.3.2 应用日志收集
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4.3.3 配置最佳实践
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4.3.4 集群及应用监控
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2017-10-27 11:59:37 +08:00
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2017-10-23 13:40:58 +08:00
<a href="../practice/data-persistence-problem.html">
4.3.6 数据持久化问题
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2017-10-23 13:40:58 +08:00
<a href="../practice/manage-compute-resources-container.html">
4.3.7 管理容器的计算资源
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2017-10-27 11:59:37 +08:00
<li class="chapter " data-level="1.5.3.7" data-path="../practice/using-prometheus-to-monitor-kuberentes-cluster.html">
2017-10-23 13:40:58 +08:00
<a href="../practice/using-prometheus-to-monitor-kuberentes-cluster.html">
4.3.8 使用Prometheus监控kubernetes集群
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2017-10-27 11:59:37 +08:00
<li class="chapter " data-level="1.5.3.8" data-path="../practice/using-heapster-to-get-object-metrics.html">
2017-10-23 13:40:58 +08:00
<a href="../practice/using-heapster-to-get-object-metrics.html">
4.3.9 使用Heapster获取集群和对象的metric数据
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4.4 存储管理
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4.4.1 GlusterFS
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4.4.1.1 使用GlusterFS做持久化存储
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<li class="chapter " data-level="1.5.4.1.2" data-path="../practice/storage-for-containers-using-glusterfs-with-openshift.html">
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4.4.1.2 在OpenShift中使用GlusterFS做持久化存储
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4.4.2 CephFS
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4.4.2.1 使用Ceph做持久化存储
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4.5 服务编排管理
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<li class="chapter " data-level="1.5.5.1" data-path="../practice/helm.html">
<a href="../practice/helm.html">
2017-10-25 17:12:37 +08:00
4.5.1 使用Helm管理kubernetes应用
2017-10-23 13:40:58 +08:00
</a>
2017-10-27 11:59:37 +08:00
</li>
<li class="chapter " data-level="1.5.5.2" data-path="../practice/create-private-charts-repo.html">
<a href="../practice/create-private-charts-repo.html">
4.5.2 构建私有Chart仓库
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="1.5.6" data-path="../practice/ci-cd.html">
<a href="../practice/ci-cd.html">
4.6 持续集成与发布
</a>
<ul class="articles">
<li class="chapter " data-level="1.5.6.1" data-path="../practice/jenkins-ci-cd.html">
<a href="../practice/jenkins-ci-cd.html">
4.6.1 使用Jenkins进行持续集成与发布
</a>
</li>
<li class="chapter " data-level="1.5.6.2" data-path="../practice/drone-ci-cd.html">
<a href="../practice/drone-ci-cd.html">
4.6.2 使用Drone进行持续集成与发布
</a>
2017-11-02 16:33:01 +08:00
</li>
</ul>
</li>
<li class="chapter " data-level="1.5.7" data-path="../practice/update-and-upgrade.html">
<a href="../practice/update-and-upgrade.html">
4.7 更新与升级
</a>
<ul class="articles">
<li class="chapter " data-level="1.5.7.1" data-path="../practice/manually-upgrade.html">
<a href="../practice/manually-upgrade.html">
4.7.1 手动升级kubernetes集群
</a>
</li>
<li class="chapter " data-level="1.5.7.2" data-path="../practice/dashboard-upgrade.html">
<a href="../practice/dashboard-upgrade.html">
4.7.2 升级dashboard
</a>
2017-10-23 13:40:58 +08:00
</li>
</ul>
</li>
</ul>
</li>
<li class="chapter " data-level="1.6" data-path="../usecases/">
<a href="../usecases/">
5. 领域应用
</a>
<ul class="articles">
<li class="chapter " data-level="1.6.1" data-path="../usecases/microservices.html">
<a href="../usecases/microservices.html">
5.1 微服务架构
</a>
<ul class="articles">
<li class="chapter " data-level="1.6.1.1" data-path="../usecases/service-discovery-in-microservices.html">
<a href="../usecases/service-discovery-in-microservices.html">
5.1.1 微服务中的服务发现
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="1.6.2" data-path="../usecases/service-mesh.html">
<a href="../usecases/service-mesh.html">
5.2 Service Mesh 服务网格
</a>
<ul class="articles">
<li class="chapter " data-level="1.6.2.1" data-path="../usecases/istio.html">
<a href="../usecases/istio.html">
5.1.1 Istio
</a>
<ul class="articles">
<li class="chapter " data-level="1.6.2.1.1" data-path="../usecases/istio-installation.html">
<a href="../usecases/istio-installation.html">
5.1.1.1 安装istio
</a>
</li>
<li class="chapter " data-level="1.6.2.1.2" data-path="../usecases/configuring-request-routing.html">
<a href="../usecases/configuring-request-routing.html">
5.1.1.2 配置请求的路由规则
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="1.6.2.2" data-path="../usecases/linkerd.html">
<a href="../usecases/linkerd.html">
5.1.2 Linkerd
</a>
<ul class="articles">
<li class="chapter " data-level="1.6.2.2.1" data-path="../usecases/linkerd-user-guide.html">
<a href="../usecases/linkerd-user-guide.html">
5.1.2.1 Linkerd 使用指南
</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="chapter " data-level="1.6.3" data-path="../usecases/big-data.html">
<a href="../usecases/big-data.html">
5.2 大数据
</a>
<ul class="articles">
<li class="chapter " data-level="1.6.3.1" data-path="../usecases/spark-standalone-on-kubernetes.html">
<a href="../usecases/spark-standalone-on-kubernetes.html">
5.2.1 Spark standalone on Kubernetes
</a>
</li>
<li class="chapter " data-level="1.6.3.2" data-path="../usecases/running-spark-with-kubernetes-native-scheduler.html">
<a href="../usecases/running-spark-with-kubernetes-native-scheduler.html">
5.2.2 运行支持kubernetes原生调度的Spark程序
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="1.6.4" data-path="../usecases/serverless.html">
<a href="../usecases/serverless.html">
5.3 Serverless架构
</a>
2017-10-27 19:09:01 +08:00
</li>
<li class="chapter " data-level="1.6.5" data-path="../usecases/edge-computing.html">
<a href="../usecases/edge-computing.html">
5.4 边缘计算
</a>
2017-10-23 13:40:58 +08:00
</li>
</ul>
</li>
<li class="chapter " data-level="1.7" data-path="../develop/">
<a href="../develop/">
6. 开发指南
</a>
<ul class="articles">
<li class="chapter " data-level="1.7.1" data-path="../develop/developing-environment.html">
<a href="../develop/developing-environment.html">
6.1 开发环境搭建
</a>
</li>
<li class="chapter " data-level="1.7.2" data-path="../develop/testing.html">
<a href="../develop/testing.html">
6.2 单元测试和集成测试
</a>
</li>
<li class="chapter " data-level="1.7.3" data-path="../develop/client-go-sample.html">
<a href="../develop/client-go-sample.html">
6.3 client-go示例
</a>
</li>
<li class="chapter " data-level="1.7.4" data-path="../develop/contribute.html">
<a href="../develop/contribute.html">
6.4 社区贡献
</a>
2017-10-23 19:09:41 +08:00
</li>
<li class="chapter " data-level="1.7.5" data-path="../develop/minikube.html">
<a href="../develop/minikube.html">
6.5 Minikube
</a>
2017-10-23 13:40:58 +08:00
</li>
</ul>
</li>
<li class="chapter " data-level="1.8" data-path="../appendix/">
<a href="../appendix/">
7. 附录
</a>
<ul class="articles">
<li class="chapter " data-level="1.8.1" data-path="../appendix/docker-best-practice.html">
<a href="../appendix/docker-best-practice.html">
7.1 Docker最佳实践
</a>
</li>
<li class="chapter " data-level="1.8.2" data-path="../appendix/issues.html">
<a href="../appendix/issues.html">
7.2 问题记录
</a>
</li>
<li class="chapter " data-level="1.8.3" data-path="../appendix/tricks.html">
<a href="../appendix/tricks.html">
7.3 使用技巧
</a>
</li>
<li class="chapter " data-level="1.8.4" data-path="../appendix/debug-kubernetes-services.html">
<a href="../appendix/debug-kubernetes-services.html">
2017-10-27 11:59:37 +08:00
7.4 kubernetes中的应用故障排查
2017-10-23 13:40:58 +08:00
</a>
</li>
<li class="chapter " data-level="1.8.5" data-path="../appendix/material-share.html">
<a href="../appendix/material-share.html">
7.5 Kubernetes相关资讯和情报链接
</a>
</li>
</ul>
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<h1>
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<a href=".." >3.5.3 使用StatefulSet部署用状态应用</a>
</h1>
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<h1 id="&#x4F7F;&#x7528;statefulset&#x90E8;&#x7F72;&#x6709;&#x72B6;&#x6001;&#x5E94;&#x7528;">&#x4F7F;&#x7528;StatefulSet&#x90E8;&#x7F72;&#x6709;&#x72B6;&#x6001;&#x5E94;&#x7528;</h1>
<p><a href="../concepts/statefulset.html">StatefulSet</a> &#x8FD9;&#x4E2A;&#x5BF9;&#x8C61;&#x662F;&#x4E13;&#x95E8;&#x7528;&#x6765;&#x90E8;&#x7F72;&#x7528;&#x72B6;&#x6001;&#x5E94;&#x7528;&#x7684;&#xFF0C;&#x53EF;&#x4EE5;&#x4E3A;Pod&#x63D0;&#x4F9B;&#x7A33;&#x5B9A;&#x7684;&#x8EAB;&#x4EFD;&#x6807;&#x8BC6;&#xFF0C;&#x5305;&#x62EC;hostname&#x3001;&#x542F;&#x52A8;&#x987A;&#x5E8F;&#x3001;DNS&#x540D;&#x79F0;&#x7B49;&#x3002;</p>
<p>&#x4E0B;&#x9762;&#x4EE5;&#x5728;kubernetes1.6&#x7248;&#x672C;&#x4E2D;&#x90E8;&#x7F72;zookeeper&#x548C;kafka&#x4E3A;&#x4F8B;&#x8BB2;&#x89E3;StatefulSet&#x7684;&#x4F7F;&#x7528;&#xFF0C;&#x5176;&#x4E2D;kafka&#x4F9D;&#x8D56;&#x4E8E;zookeeper&#x3002;</p>
2017-10-23 14:24:59 +08:00
<p>Dockerfile&#x548C;&#x914D;&#x7F6E;&#x6587;&#x4EF6;&#x89C1; <a href="https://github.com/rootsongjc/kubernetes-handbook/tree/master/manifests/zookeeper" target="_blank">zookeeper</a> &#x548C; <a href="https://github.com/rootsongjc/kubernetes-handbook/tree/master/manifests/kafka" target="_blank">kafka</a>&#x3002;</p>
<p><strong>&#x6CE8;&#xFF1A;</strong>&#x6240;&#x6709;&#x7684;&#x955C;&#x50CF;&#x57FA;&#x4E8E;CentOS&#x7CFB;&#x7EDF;&#x7684;JDK&#x5236;&#x4F5C;&#xFF0C;&#x4E3A;&#x6211;&#x7684;&#x79C1;&#x4EBA;&#x955C;&#x50CF;&#xFF0C;&#x5916;&#x90E8;&#x65E0;&#x6CD5;&#x8BBF;&#x95EE;&#xFF0C;yaml&#x4E2D;&#x6CA1;&#x6709;&#x914D;&#x7F6E;&#x6301;&#x4E45;&#x5316;&#x5B58;&#x50A8;&#x3002;</p>
2017-10-23 13:40:58 +08:00
<h2 id="&#x90E8;&#x7F72;zookeeper">&#x90E8;&#x7F72;Zookeeper</h2>
<p>Dockerfile&#x4E2D;&#x4ECE;&#x8FDC;&#x7A0B;&#x83B7;&#x53D6;zookeeper&#x7684;&#x5B89;&#x88C5;&#x6587;&#x4EF6;&#xFF0C;&#x7136;&#x540E;&#x5728;&#x5B9A;&#x4E49;&#x4E86;&#x4E09;&#x4E2A;&#x811A;&#x672C;&#xFF1A;</p>
<ul>
<li>zkGenConfig.sh&#xFF1A;&#x751F;&#x6210;zookeeper&#x914D;&#x7F6E;&#x6587;&#x4EF6;</li>
<li>zkMetrics.sh&#xFF1A;&#x83B7;&#x53D6;zookeeper&#x7684;metrics</li>
<li>zkOk.sh&#xFF1A;&#x7528;&#x6765;&#x505A;ReadinessProb</li>
</ul>
<p>&#x6211;&#x4EEC;&#x5728;&#x6765;&#x770B;&#x4E0B;&#x8FD9;&#x4E09;&#x4E2A;&#x811A;&#x672C;&#x7684;&#x6267;&#x884C;&#x7ED3;&#x679C;&#xFF1A;</p>
<p>zkGenConfig.sh</p>
<p>zkMetrics.sh&#x811A;&#x672C;&#x5B9E;&#x9645;&#x4E0A;&#x6267;&#x884C;&#x7684;&#x662F;&#x4E0B;&#x9762;&#x7684;&#x547D;&#x4EE4;&#xFF1A;</p>
<pre><code class="lang-bash">$ <span class="hljs-built_in">echo</span> mntr | nc localhost <span class="hljs-variable">$ZK_CLIENT_PORT</span> &gt;&amp; 1
zk_version 3.4.6-1569965, built on 02/20/2014 09:09 GMT
zk_avg_latency 0
zk_max_latency 5
zk_min_latency 0
zk_packets_received 427879
zk_packets_sent 427890
zk_num_alive_connections 3
zk_outstanding_requests 0
zk_server_state leader
zk_znode_count 18
zk_watch_count 3
zk_ephemerals_count 4
zk_approximate_data_size 613
zk_open_file_descriptor_count 29
zk_max_file_descriptor_count 1048576
zk_followers 1
zk_synced_followers 1
zk_pending_syncs 0
</code></pre>
<p>zkOk.sh&#x811A;&#x672C;&#x5B9E;&#x9645;&#x4E0A;&#x6267;&#x884C;&#x7684;&#x662F;&#x4E0B;&#x9762;&#x7684;&#x547D;&#x4EE4;&#xFF1A;</p>
<pre><code class="lang-bash">$ <span class="hljs-built_in">echo</span> ruok | nc 127.0.0.1 <span class="hljs-variable">$ZK_CLIENT_PORT</span>
imok
</code></pre>
<p><strong>zookeeper.yaml</strong></p>
<p>&#x4E0B;&#x9762;&#x662F;&#x542F;&#x52A8;&#x4E09;&#x4E2A;zookeeper&#x5B9E;&#x4F8B;&#x7684;yaml&#x914D;&#x7F6E;&#x6587;&#x4EF6;&#xFF1A;</p>
<pre><code class="lang-yaml"><span class="hljs-meta">---</span>
<span class="hljs-attr">apiVersion:</span> v1
<span class="hljs-attr">kind:</span> Service
<span class="hljs-attr">metadata:</span>
<span class="hljs-attr"> name:</span> zk-svc
<span class="hljs-attr"> labels:</span>
<span class="hljs-attr"> app:</span> zk-svc
<span class="hljs-attr">spec:</span>
<span class="hljs-attr"> ports:</span>
<span class="hljs-attr"> - port:</span> <span class="hljs-number">2888</span>
<span class="hljs-attr"> name:</span> server
<span class="hljs-attr"> - port:</span> <span class="hljs-number">3888</span>
<span class="hljs-attr"> name:</span> leader-election
<span class="hljs-attr"> clusterIP:</span> None
<span class="hljs-attr"> selector:</span>
<span class="hljs-attr"> app:</span> zk
<span class="hljs-meta">---</span>
<span class="hljs-attr">apiVersion:</span> v1
<span class="hljs-attr">kind:</span> ConfigMap
<span class="hljs-attr">metadata:</span>
<span class="hljs-attr"> name:</span> zk-cm
<span class="hljs-attr">data:</span>
jvm.heap: <span class="hljs-string">&quot;1G&quot;</span>
<span class="hljs-attr"> tick:</span> <span class="hljs-string">&quot;2000&quot;</span>
<span class="hljs-attr"> init:</span> <span class="hljs-string">&quot;10&quot;</span>
<span class="hljs-attr"> sync:</span> <span class="hljs-string">&quot;5&quot;</span>
client.cnxns: <span class="hljs-string">&quot;60&quot;</span>
snap.retain: <span class="hljs-string">&quot;3&quot;</span>
purge.interval: <span class="hljs-string">&quot;0&quot;</span>
<span class="hljs-meta">---</span>
<span class="hljs-attr">apiVersion:</span> policy/v1beta1
<span class="hljs-attr">kind:</span> PodDisruptionBudget
<span class="hljs-attr">metadata:</span>
<span class="hljs-attr"> name:</span> zk-pdb
<span class="hljs-attr">spec:</span>
<span class="hljs-attr"> selector:</span>
<span class="hljs-attr"> matchLabels:</span>
<span class="hljs-attr"> app:</span> zk
<span class="hljs-attr"> minAvailable:</span> <span class="hljs-number">2</span>
<span class="hljs-meta">---</span>
<span class="hljs-attr">apiVersion:</span> apps/v1beta1
<span class="hljs-attr">kind:</span> StatefulSet
<span class="hljs-attr">metadata:</span>
<span class="hljs-attr"> name:</span> zk
<span class="hljs-attr">spec:</span>
<span class="hljs-attr"> serviceName:</span> zk-svc
<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> zk
<span class="hljs-attr"> spec:</span>
<span class="hljs-attr"> affinity:</span>
<span class="hljs-attr"> podAntiAffinity:</span>
<span class="hljs-attr"> requiredDuringSchedulingIgnoredDuringExecution:</span>
<span class="hljs-attr"> - labelSelector:</span>
<span class="hljs-attr"> matchExpressions:</span>
<span class="hljs-attr"> - key:</span> <span class="hljs-string">&quot;app&quot;</span>
<span class="hljs-attr"> operator:</span> In
<span class="hljs-attr"> values:</span>
<span class="hljs-bullet"> -</span> zk
<span class="hljs-attr"> topologyKey:</span> <span class="hljs-string">&quot;kubernetes.io/hostname&quot;</span>
<span class="hljs-attr"> containers:</span>
<span class="hljs-attr"> - name:</span> k8szk
<span class="hljs-attr"> imagePullPolicy:</span> Always
<span class="hljs-attr"> image:</span> sz-pg-oam-docker-hub<span class="hljs-bullet">-001.</span>tendcloud.com/library/zookeeper:<span class="hljs-number">3.4</span><span class="hljs-number">.6</span>
<span class="hljs-attr"> resources:</span>
<span class="hljs-attr"> requests:</span>
<span class="hljs-attr"> memory:</span> <span class="hljs-string">&quot;2Gi&quot;</span>
<span class="hljs-attr"> cpu:</span> <span class="hljs-string">&quot;500m&quot;</span>
<span class="hljs-attr"> ports:</span>
<span class="hljs-attr"> - containerPort:</span> <span class="hljs-number">2181</span>
<span class="hljs-attr"> name:</span> client
<span class="hljs-attr"> - containerPort:</span> <span class="hljs-number">2888</span>
<span class="hljs-attr"> name:</span> server
<span class="hljs-attr"> - containerPort:</span> <span class="hljs-number">3888</span>
<span class="hljs-attr"> name:</span> leader-election
<span class="hljs-attr"> env:</span>
<span class="hljs-bullet"> -</span> name : ZK_REPLICAS
<span class="hljs-attr"> value:</span> <span class="hljs-string">&quot;3&quot;</span>
<span class="hljs-bullet"> -</span> name : ZK_HEAP_SIZE
<span class="hljs-attr"> valueFrom:</span>
<span class="hljs-attr"> configMapKeyRef:</span>
<span class="hljs-attr"> name:</span> zk-cm
<span class="hljs-attr"> key:</span> jvm.heap
<span class="hljs-bullet"> -</span> name : ZK_TICK_TIME
<span class="hljs-attr"> valueFrom:</span>
<span class="hljs-attr"> configMapKeyRef:</span>
<span class="hljs-attr"> name:</span> zk-cm
<span class="hljs-attr"> key:</span> tick
<span class="hljs-bullet"> -</span> name : ZK_INIT_LIMIT
<span class="hljs-attr"> valueFrom:</span>
<span class="hljs-attr"> configMapKeyRef:</span>
<span class="hljs-attr"> name:</span> zk-cm
<span class="hljs-attr"> key:</span> init
<span class="hljs-bullet"> -</span> name : ZK_SYNC_LIMIT
<span class="hljs-attr"> valueFrom:</span>
<span class="hljs-attr"> configMapKeyRef:</span>
<span class="hljs-attr"> name:</span> zk-cm
<span class="hljs-attr"> key:</span> tick
<span class="hljs-bullet"> -</span> name : ZK_MAX_CLIENT_CNXNS
<span class="hljs-attr"> valueFrom:</span>
<span class="hljs-attr"> configMapKeyRef:</span>
<span class="hljs-attr"> name:</span> zk-cm
<span class="hljs-attr"> key:</span> client.cnxns
<span class="hljs-attr"> - name:</span> ZK_SNAP_RETAIN_COUNT
<span class="hljs-attr"> valueFrom:</span>
<span class="hljs-attr"> configMapKeyRef:</span>
<span class="hljs-attr"> name:</span> zk-cm
<span class="hljs-attr"> key:</span> snap.retain
<span class="hljs-attr"> - name:</span> ZK_PURGE_INTERVAL
<span class="hljs-attr"> valueFrom:</span>
<span class="hljs-attr"> configMapKeyRef:</span>
<span class="hljs-attr"> name:</span> zk-cm
<span class="hljs-attr"> key:</span> purge.interval
<span class="hljs-attr"> - name:</span> ZK_CLIENT_PORT
<span class="hljs-attr"> value:</span> <span class="hljs-string">&quot;2181&quot;</span>
<span class="hljs-attr"> - name:</span> ZK_SERVER_PORT
<span class="hljs-attr"> value:</span> <span class="hljs-string">&quot;2888&quot;</span>
<span class="hljs-attr"> - name:</span> ZK_ELECTION_PORT
<span class="hljs-attr"> value:</span> <span class="hljs-string">&quot;3888&quot;</span>
<span class="hljs-attr"> command:</span>
<span class="hljs-bullet"> -</span> sh
<span class="hljs-bullet"> -</span> -c
<span class="hljs-bullet"> -</span> zkGenConfig.sh &amp;&amp; zkServer.sh start-foreground
<span class="hljs-attr"> readinessProbe:</span>
<span class="hljs-attr"> exec:</span>
<span class="hljs-attr"> command:</span>
<span class="hljs-bullet"> -</span> <span class="hljs-string">&quot;zkOk.sh&quot;</span>
<span class="hljs-attr"> initialDelaySeconds:</span> <span class="hljs-number">10</span>
<span class="hljs-attr"> timeoutSeconds:</span> <span class="hljs-number">5</span>
<span class="hljs-attr"> livenessProbe:</span>
<span class="hljs-attr"> exec:</span>
<span class="hljs-attr"> command:</span>
<span class="hljs-bullet"> -</span> <span class="hljs-string">&quot;zkOk.sh&quot;</span>
<span class="hljs-attr"> initialDelaySeconds:</span> <span class="hljs-number">10</span>
<span class="hljs-attr"> timeoutSeconds:</span> <span class="hljs-number">5</span>
<span class="hljs-attr"> securityContext:</span>
<span class="hljs-attr"> runAsUser:</span> <span class="hljs-number">1000</span>
<span class="hljs-attr"> fsGroup:</span> <span class="hljs-number">1000</span>
</code></pre>
<p>&#x6211;&#x4EEC;&#x518D;&#x4E3B;&#x8981;&#x4E0B;&#x4E0A;&#x9762;&#x90A3;&#x4E09;&#x4E2A;&#x811A;&#x672C;&#x7684;&#x7528;&#x9014;&#x3002;</p>
<h2 id="&#x90E8;&#x7F72;kafka">&#x90E8;&#x7F72;kafka</h2>
<p>Kafka&#x7684;docker&#x955C;&#x50CF;&#x5236;&#x4F5C;&#x8DDF;zookeeper&#x7C7B;&#x4F3C;&#xFF0C;&#x90FD;&#x662F;&#x4ECE;&#x8FDC;&#x7A0B;&#x4E0B;&#x8F7D;&#x5B89;&#x88C5;&#x5305;&#x540E;&#xFF0C;&#x89E3;&#x538B;&#x5B89;&#x88C5;&#x3002;</p>
<p>&#x4E0E;zookeeper&#x4E0D;&#x540C;&#x7684;&#x662F;&#xFF0C;&#x53EA;&#x8981;&#x4E00;&#x4E2A;&#x811A;&#x672C;&#xFF0C;&#x4F46;&#x662F;&#x53C8;&#x4F9D;&#x8D56;&#x4E8E;&#x6211;&#x4EEC;&#x4E0A;&#x4E00;&#x6B65;&#x5B89;&#x88C5;&#x7684;zookeeper&#xFF0C;kafkaGenConfig.sh&#x7528;&#x6765;&#x751F;&#x6210;kafka&#x7684;&#x914D;&#x7F6E;&#x6587;&#x4EF6;&#x3002;</p>
<p>&#x6211;&#x4EEC;&#x6765;&#x770B;&#x4E0B;&#x8FD9;&#x4E2A;&#x811A;&#x672C;&#x3002;</p>
<pre><code class="lang-bash"><span class="hljs-meta">#!/bin/bash</span>
HOST=`hostname <span class="hljs-_">-s</span>`
<span class="hljs-keyword">if</span> [[ <span class="hljs-variable">$HOST</span> =~ (.*)-([0-9]+)$ ]]; <span class="hljs-keyword">then</span>
NAME=<span class="hljs-variable">${BASH_REMATCH[1]}</span>
ORD=<span class="hljs-variable">${BASH_REMATCH[2]}</span>
<span class="hljs-keyword">else</span>
<span class="hljs-built_in">echo</span> <span class="hljs-string">&quot;Failed to extract ordinal from hostname <span class="hljs-variable">$HOST</span>&quot;</span>
<span class="hljs-built_in">exit</span> 1
<span class="hljs-keyword">fi</span>
MY_ID=$((ORD+1))
sed -i s<span class="hljs-string">&quot;/broker.id=0/broker.id=<span class="hljs-variable">$MY_ID</span>/g&quot;</span> /opt/kafka/config/server.properties
sed -i s<span class="hljs-string">&apos;/zookeeper.connect=localhost:2181/zookeeper.connect=zk-0.zk-svc.brand.svc:2181,zk-1.zk-svc.brand.svc:2181,zk-2.zk-svc.brand.svc:2181/g&apos;</span> /opt/kafka/config/server.properties
</code></pre>
<p>&#x8BE5;&#x811A;&#x672C;&#x6839;&#x636E;statefulset&#x751F;&#x6210;&#x7684;pod&#x7684;hostname&#x7684;&#x540E;&#x534A;&#x622A;&#x6570;&#x5B57;&#x90E8;&#x5206;&#x4F5C;&#x4E3A;broker ID&#xFF0C;&#x540C;&#x65F6;&#x518D;&#x66FF;&#x6362;zookeeper&#x7684;&#x5730;&#x5740;&#x3002;</p>
<p><strong>Kafka.yaml</strong></p>
<p>&#x4E0B;&#x9762;&#x662F;&#x521B;&#x5EFA;3&#x4E2A;kafka&#x5B9E;&#x4F8B;&#x7684;yaml&#x914D;&#x7F6E;&#x3002;</p>
<pre><code class="lang-yaml"><span class="hljs-meta">---</span>
<span class="hljs-attr">apiVersion:</span> v1
<span class="hljs-attr">kind:</span> Service
<span class="hljs-attr">metadata:</span>
<span class="hljs-attr"> name:</span> kafka-svc
<span class="hljs-attr"> labels:</span>
<span class="hljs-attr"> app:</span> kafka
<span class="hljs-attr">spec:</span>
<span class="hljs-attr"> ports:</span>
<span class="hljs-attr"> - port:</span> <span class="hljs-number">9093</span>
<span class="hljs-attr"> name:</span> server
<span class="hljs-attr"> clusterIP:</span> None
<span class="hljs-attr"> selector:</span>
<span class="hljs-attr"> app:</span> kafka
<span class="hljs-meta">---</span>
<span class="hljs-attr">apiVersion:</span> policy/v1beta1
<span class="hljs-attr">kind:</span> PodDisruptionBudget
<span class="hljs-attr">metadata:</span>
<span class="hljs-attr"> name:</span> kafka-pdb
<span class="hljs-attr">spec:</span>
<span class="hljs-attr"> selector:</span>
<span class="hljs-attr"> matchLabels:</span>
<span class="hljs-attr"> app:</span> kafka
<span class="hljs-attr"> minAvailable:</span> <span class="hljs-number">2</span>
<span class="hljs-meta">---</span>
<span class="hljs-attr">apiVersion:</span> apps/v1beta1
<span class="hljs-attr">kind:</span> StatefulSet
<span class="hljs-attr">metadata:</span>
<span class="hljs-attr"> name:</span> kafka
<span class="hljs-attr">spec:</span>
<span class="hljs-attr"> serviceName:</span> kafka-svc
<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> kafka
<span class="hljs-attr"> spec:</span>
<span class="hljs-attr"> affinity:</span>
<span class="hljs-attr"> podAntiAffinity:</span>
<span class="hljs-attr"> requiredDuringSchedulingIgnoredDuringExecution:</span>
<span class="hljs-attr"> - labelSelector:</span>
<span class="hljs-attr"> matchExpressions:</span>
<span class="hljs-attr"> - key:</span> <span class="hljs-string">&quot;app&quot;</span>
<span class="hljs-attr"> operator:</span> In
<span class="hljs-attr"> values:</span>
<span class="hljs-bullet"> -</span> kafka
<span class="hljs-attr"> topologyKey:</span> <span class="hljs-string">&quot;kubernetes.io/hostname&quot;</span>
<span class="hljs-attr"> podAffinity:</span>
<span class="hljs-attr"> preferredDuringSchedulingIgnoredDuringExecution:</span>
<span class="hljs-attr"> - weight:</span> <span class="hljs-number">1</span>
<span class="hljs-attr"> podAffinityTerm:</span>
<span class="hljs-attr"> labelSelector:</span>
<span class="hljs-attr"> matchExpressions:</span>
<span class="hljs-attr"> - key:</span> <span class="hljs-string">&quot;app&quot;</span>
<span class="hljs-attr"> operator:</span> In
<span class="hljs-attr"> values:</span>
<span class="hljs-bullet"> -</span> zk
<span class="hljs-attr"> topologyKey:</span> <span class="hljs-string">&quot;kubernetes.io/hostname&quot;</span>
<span class="hljs-attr"> terminationGracePeriodSeconds:</span> <span class="hljs-number">300</span>
<span class="hljs-attr"> containers:</span>
<span class="hljs-attr"> - name:</span> k8skafka
<span class="hljs-attr"> imagePullPolicy:</span> Always
<span class="hljs-attr"> image:</span> sz-pg-oam-docker-hub<span class="hljs-bullet">-001.</span>tendcloud.com/library/kafka:<span class="hljs-number">2.10</span><span class="hljs-bullet">-0.8</span><span class="hljs-number">.2</span><span class="hljs-number">.1</span>
<span class="hljs-attr"> resources:</span>
<span class="hljs-attr"> requests:</span>
<span class="hljs-attr"> memory:</span> <span class="hljs-string">&quot;1Gi&quot;</span>
<span class="hljs-attr"> cpu:</span> <span class="hljs-number">500</span>m
<span class="hljs-attr"> env:</span>
<span class="hljs-attr"> - name:</span> KF_REPLICAS
<span class="hljs-attr"> value:</span> <span class="hljs-string">&quot;3&quot;</span>
<span class="hljs-attr"> ports:</span>
<span class="hljs-attr"> - containerPort:</span> <span class="hljs-number">9093</span>
<span class="hljs-attr"> name:</span> server
<span class="hljs-attr"> command:</span>
<span class="hljs-bullet"> -</span> /bin/bash
<span class="hljs-bullet"> -</span> -c
<span class="hljs-bullet"> -</span> <span class="hljs-string">&quot;/opt/kafka/bin/kafkaGenConfig.sh &amp;&amp; /opt/kafka/bin/kafka-server-start.sh /opt/kafka/config/server.properties&quot;</span>
<span class="hljs-attr"> env:</span>
<span class="hljs-attr"> - name:</span> KAFKA_HEAP_OPTS
value : <span class="hljs-string">&quot;-Xmx512M -Xms512M&quot;</span>
<span class="hljs-attr"> - name:</span> KAFKA_OPTS
<span class="hljs-attr"> value:</span> <span class="hljs-string">&quot;-Dlogging.level=DEBUG&quot;</span>
<span class="hljs-attr"> readinessProbe:</span>
<span class="hljs-attr"> tcpSocket:</span>
<span class="hljs-attr"> port:</span> <span class="hljs-number">9092</span>
<span class="hljs-attr"> initialDelaySeconds:</span> <span class="hljs-number">15</span>
<span class="hljs-attr"> timeoutSeconds:</span> <span class="hljs-number">1</span>
</code></pre>
<h2 id="&#x53C2;&#x8003;">&#x53C2;&#x8003;</h2>
<p><a href="https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/" target="_blank">https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/</a></p>
2017-10-23 19:09:41 +08:00
<p><a href="https://github.com/kubernetes/contrib/tree/master/statefulsets" target="_blank">kubernetes contrib - statefulsets</a></p>
<p><a href="http://blog.kubernetes.io/2017/01/running-mongodb-on-kubernetes-with-statefulsets.html" target="_blank">http://blog.kubernetes.io/2017/01/running-mongodb-on-kubernetes-with-statefulsets.html</a> </p>
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