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1. 前言
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2. 概念原理
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2.1 设计理念
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2.2 Objects
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2.2.1 Pod
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2.2.1.1 Pod解析
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2.2.1.2 Init容器
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2.2.1.3 Pod安全策略
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2.2.1.4 Pod的生命周期
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2.2.2 Node
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2.2.3 Namespace
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2.2.4 Service
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2.2.5 Volume和Persistent Volume
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2.2.6 Deployment
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2.2.7 Secret
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2.2.8 StatefulSet
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2.2.9 DaemonSet
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2.2.10 ServiceAccount
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2.2.11 ReplicationController和ReplicaSet
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2.2.12 Job
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2.2.13 CronJob
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2.2.14 Ingress
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2.2.15 ConfigMap
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2.2.16 Horizontal Pod Autoscaling
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2.2.17 Label
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2.2.18 垃圾收集
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2.2.19 NetworkPolicy
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3. 用户指南
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3.1 资源配置
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3.1.1 配置Pod的liveness和readiness探针
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3.1.2 配置Pod的Service Account
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3.2 命令使用
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3.2.1 使用kubectl
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3.2.2 docker用户过度到kubectl命令行指南
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3.3 集群安全性管理
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3.3.1 管理集群中的TLS
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3.3.2 kubelet的认证授权
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3.3.3 TLS bootstrap
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3.3.4 kubectl的用户认证授权
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3.3.5 RBAC——基于角色的访问控制
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3.3.6 IP伪装代理
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3.4 访问 Kubernetes 集群
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3.4.1 访问集群
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3.4.2 使用 kubeconfig 文件配置跨集群认证
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3.4.3 通过端口转发访问集群中的应用程序
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<li class="chapter " data-level="1.3.4.4" data-path="../guide/service-access-application-cluster.html">
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3.4.4 使用 service 访问群集中的应用程序
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3.5 在kubernetes中开发部署应用
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3.5.1 适用于kubernetes的应用开发部署流程
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3.5.2 迁移传统应用到kubernetes中——以Hadoop YARN为例
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4. 最佳实践
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4.1 在CentOS上部署kubernetes1.6集群
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4.1.1 创建TLS证书和秘钥
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4.1.2 创建kubeconfig文件
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4.1.3 创建高可用etcd集群
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4.1.4 安装kubectl命令行工具
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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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<li class="chapter " data-level="1.4.2.1" data-path="traefik-ingress-installation.html">
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4.2.1 安装Traefik ingress
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<li class="chapter " data-level="1.4.2.2" data-path="distributed-load-test.html">
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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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4.3 运维管理
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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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4.3.5 使用Jenkins进行持续构建与发布
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4.3.6 数据持久化问题
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4.3.7 管理容器的计算资源
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4.4 存储管理
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4.4.1 GlusterFS
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<li class="chapter " data-level="1.4.4.1.1" data-path="using-glusterfs-for-persistent-storage.html">
<a href="using-glusterfs-for-persistent-storage.html">
4.4.1.1 使用GlusterFS做持久化存储
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<li class="chapter " data-level="1.4.4.1.2" data-path="storage-for-containers-using-glusterfs-with-openshift.html">
<a href="storage-for-containers-using-glusterfs-with-openshift.html">
4.4.1.2 在OpenShift中使用GlusterFS做持久化存储
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4.4.2 CephFS
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<a href="using-ceph-for-persistent-storage.html">
4.4.2.1 使用Ceph做持久化存储
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5. 领域应用
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<li class="chapter " data-level="1.5.1" data-path="../usecases/microservices.html">
<a href="../usecases/microservices.html">
5.1 微服务架构
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<li class="chapter " data-level="1.5.1.1" data-path="../usecases/service-discovery-in-microservices.html">
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5.1.1 微服务中的服务发现
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<li class="chapter " data-level="1.5.2" data-path="../usecases/service-mesh.html">
<a href="../usecases/service-mesh.html">
5.2 Service Mesh 服务网格
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<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
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<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
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<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
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<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
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<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
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<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
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<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>
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</ul>
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<li class="chapter " data-level="1.5.4" data-path="../usecases/serverless.html">
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5.3 Serverless架构
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<li class="chapter " data-level="1.6" data-path="../develop/">
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6. 开发指南
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<li class="chapter " data-level="1.6.1" data-path="../develop/developing-environment.html">
<a href="../develop/developing-environment.html">
6.1 开发环境搭建
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6.2 单元测试和集成测试
</a>
</li>
<li class="chapter " data-level="1.6.3" data-path="../develop/client-go-sample.html">
<a href="../develop/client-go-sample.html">
6.3 client-go示例
</a>
</li>
<li class="chapter " data-level="1.6.4" data-path="../develop/contribute.html">
<a href="../develop/contribute.html">
6.4 社区贡献
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="1.7" data-path="../appendix/">
<a href="../appendix/">
7. 附录
</a>
<ul class="articles">
<li class="chapter " data-level="1.7.1" data-path="../appendix/docker-best-practice.html">
<a href="../appendix/docker-best-practice.html">
7.1 Docker最佳实践
</a>
</li>
<li class="chapter " data-level="1.7.2" data-path="../appendix/issues.html">
<a href="../appendix/issues.html">
7.2 问题记录
</a>
</li>
<li class="chapter " data-level="1.7.3" data-path="../appendix/tricks.html">
<a href="../appendix/tricks.html">
7.3 使用技巧
</a>
</li>
<li class="chapter " data-level="1.7.4" data-path="../appendix/debug-kubernetes-services.html">
<a href="../appendix/debug-kubernetes-services.html">
7.4 kubernetes service中的故障排查
</a>
</li>
</ul>
</li>
<li class="divider"></li>
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<a href="https://www.gitbook.com" target="blank" class="gitbook-link">
本书使用 GitBook 发布
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<!-- Title -->
<h1>
<i class="fa fa-circle-o-notch fa-spin"></i>
<a href=".." >4.2 服务发现与负载均衡</a>
</h1>
</div>
<div class="page-wrapper" tabindex="-1" role="main">
<div class="page-inner">
<div class="search-plus" id="book-search-results">
<div class="search-noresults">
<section class="normal markdown-section">
<h1 id="&#x670D;&#x52A1;&#x53D1;&#x73B0;&#x4E0E;&#x8D1F;&#x8F7D;&#x5747;&#x8861;">&#x670D;&#x52A1;&#x53D1;&#x73B0;&#x4E0E;&#x8D1F;&#x8F7D;&#x5747;&#x8861;</h1>
<p>Kubernetes&#x5728;&#x8BBE;&#x8BA1;&#x4E4B;&#x521D;&#x5C31;&#x5145;&#x5206;&#x8003;&#x8651;&#x4E86;&#x9488;&#x5BF9;&#x5BB9;&#x5668;&#x7684;&#x670D;&#x52A1;&#x53D1;&#x73B0;&#x4E0E;&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#x673A;&#x5236;&#xFF0C;&#x63D0;&#x4F9B;&#x4E86;Service&#x8D44;&#x6E90;&#xFF0C;&#x5E76;&#x901A;&#x8FC7;kube-proxy&#x914D;&#x5408;cloud provider&#x6765;&#x9002;&#x5E94;&#x4E0D;&#x540C;&#x7684;&#x5E94;&#x7528;&#x573A;&#x666F;&#x3002;&#x968F;&#x7740;kubernetes&#x7528;&#x6237;&#x7684;&#x6FC0;&#x589E;&#xFF0C;&#x7528;&#x6237;&#x573A;&#x666F;&#x7684;&#x4E0D;&#x65AD;&#x4E30;&#x5BCC;&#xFF0C;&#x53C8;&#x4EA7;&#x751F;&#x4E86;&#x4E00;&#x4E9B;&#x65B0;&#x7684;&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#x673A;&#x5236;&#x3002;&#x76EE;&#x524D;&#xFF0C;kubernetes&#x4E2D;&#x7684;&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#x5927;&#x81F4;&#x53EF;&#x4EE5;&#x5206;&#x4E3A;&#x4EE5;&#x4E0B;&#x51E0;&#x79CD;&#x673A;&#x5236;&#xFF0C;&#x6BCF;&#x79CD;&#x673A;&#x5236;&#x90FD;&#x6709;&#x5176;&#x7279;&#x5B9A;&#x7684;&#x5E94;&#x7528;&#x573A;&#x666F;&#xFF1A;</p>
<ul>
<li>Service&#xFF1A;&#x76F4;&#x63A5;&#x7528;Service&#x63D0;&#x4F9B;cluster&#x5185;&#x90E8;&#x7684;&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#xFF0C;&#x5E76;&#x501F;&#x52A9;cloud provider&#x63D0;&#x4F9B;&#x7684;LB&#x63D0;&#x4F9B;&#x5916;&#x90E8;&#x8BBF;&#x95EE;</li>
<li>Ingress Controller&#xFF1A;&#x8FD8;&#x662F;&#x7528;Service&#x63D0;&#x4F9B;cluster&#x5185;&#x90E8;&#x7684;&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#xFF0C;&#x4F46;&#x662F;&#x901A;&#x8FC7;&#x81EA;&#x5B9A;&#x4E49;LB&#x63D0;&#x4F9B;&#x5916;&#x90E8;&#x8BBF;&#x95EE;</li>
<li>Service Load Balancer&#xFF1A;&#x628A;load balancer&#x76F4;&#x63A5;&#x8DD1;&#x5728;&#x5BB9;&#x5668;&#x4E2D;&#xFF0C;&#x5B9E;&#x73B0;Bare Metal&#x7684;Service Load Balancer</li>
<li>Custom Load Balancer&#xFF1A;&#x81EA;&#x5B9A;&#x4E49;&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#xFF0C;&#x5E76;&#x66FF;&#x4EE3;kube-proxy&#xFF0C;&#x4E00;&#x822C;&#x5728;&#x7269;&#x7406;&#x90E8;&#x7F72;Kubernetes&#x65F6;&#x4F7F;&#x7528;&#xFF0C;&#x65B9;&#x4FBF;&#x63A5;&#x5165;&#x516C;&#x53F8;&#x5DF2;&#x6709;&#x7684;&#x5916;&#x90E8;&#x670D;&#x52A1;</li>
</ul>
<h2 id="service">Service</h2>
<p>Service&#x662F;&#x5BF9;&#x4E00;&#x7EC4;&#x63D0;&#x4F9B;&#x76F8;&#x540C;&#x529F;&#x80FD;&#x7684;Pods&#x7684;&#x62BD;&#x8C61;&#xFF0C;&#x5E76;&#x4E3A;&#x5B83;&#x4EEC;&#x63D0;&#x4F9B;&#x4E00;&#x4E2A;&#x7EDF;&#x4E00;&#x7684;&#x5165;&#x53E3;&#x3002;&#x501F;&#x52A9;Service&#xFF0C;&#x5E94;&#x7528;&#x53EF;&#x4EE5;&#x65B9;&#x4FBF;&#x7684;&#x5B9E;&#x73B0;&#x670D;&#x52A1;&#x53D1;&#x73B0;&#x4E0E;&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#xFF0C;&#x5E76;&#x5B9E;&#x73B0;&#x5E94;&#x7528;&#x7684;&#x96F6;&#x5B95;&#x673A;&#x5347;&#x7EA7;&#x3002;Service&#x901A;&#x8FC7;&#x6807;&#x7B7E;&#x6765;&#x9009;&#x53D6;&#x670D;&#x52A1;&#x540E;&#x7AEF;&#xFF0C;&#x4E00;&#x822C;&#x914D;&#x5408;Replication Controller&#x6216;&#x8005;Deployment&#x6765;&#x4FDD;&#x8BC1;&#x540E;&#x7AEF;&#x5BB9;&#x5668;&#x7684;&#x6B63;&#x5E38;&#x8FD0;&#x884C;&#x3002;</p>
<p>Service&#x6709;&#x4E09;&#x79CD;&#x7C7B;&#x578B;&#xFF1A;</p>
<ul>
<li>ClusterIP&#xFF1A;&#x9ED8;&#x8BA4;&#x7C7B;&#x578B;&#xFF0C;&#x81EA;&#x52A8;&#x5206;&#x914D;&#x4E00;&#x4E2A;&#x4EC5;cluster&#x5185;&#x90E8;&#x53EF;&#x4EE5;&#x8BBF;&#x95EE;&#x7684;&#x865A;&#x62DF;IP</li>
<li>NodePort&#xFF1A;&#x5728;ClusterIP&#x57FA;&#x7840;&#x4E0A;&#x4E3A;Service&#x5728;&#x6BCF;&#x53F0;&#x673A;&#x5668;&#x4E0A;&#x7ED1;&#x5B9A;&#x4E00;&#x4E2A;&#x7AEF;&#x53E3;&#xFF0C;&#x8FD9;&#x6837;&#x5C31;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;<code>&lt;NodeIP&gt;:NodePort</code>&#x6765;&#x8BBF;&#x95EE;&#x6539;&#x670D;&#x52A1;</li>
<li>LoadBalancer&#xFF1A;&#x5728;NodePort&#x7684;&#x57FA;&#x7840;&#x4E0A;&#xFF0C;&#x501F;&#x52A9;cloud provider&#x521B;&#x5EFA;&#x4E00;&#x4E2A;&#x5916;&#x90E8;&#x7684;&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#x5668;&#xFF0C;&#x5E76;&#x5C06;&#x8BF7;&#x6C42;&#x8F6C;&#x53D1;&#x5230;<code>&lt;NodeIP&gt;:NodePort</code></li>
</ul>
<p>&#x53E6;&#x5916;&#xFF0C;&#x4E5F;&#x53EF;&#x4EE5;&#x5C06;&#x5DF2;&#x6709;&#x7684;&#x670D;&#x52A1;&#x4EE5;Service&#x7684;&#x5F62;&#x5F0F;&#x52A0;&#x5165;&#x5230;Kubernetes&#x96C6;&#x7FA4;&#x4E2D;&#x6765;&#xFF0C;&#x53EA;&#x9700;&#x8981;&#x5728;&#x521B;&#x5EFA;Service&#x7684;&#x65F6;&#x5019;&#x4E0D;&#x6307;&#x5B9A;Label selector&#xFF0C;&#x800C;&#x662F;&#x5728;Service&#x521B;&#x5EFA;&#x597D;&#x540E;&#x624B;&#x52A8;&#x4E3A;&#x5176;&#x6DFB;&#x52A0;endpoint&#x3002;</p>
<h2 id="ingress-controller">Ingress Controller</h2>
<p>Service&#x867D;&#x7136;&#x89E3;&#x51B3;&#x4E86;&#x670D;&#x52A1;&#x53D1;&#x73B0;&#x548C;&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#x7684;&#x95EE;&#x9898;&#xFF0C;&#x4F46;&#x5B83;&#x5728;&#x4F7F;&#x7528;&#x4E0A;&#x8FD8;&#x662F;&#x6709;&#x4E00;&#x4E9B;&#x9650;&#x5236;&#xFF0C;&#x6BD4;&#x5982;</p>
<ul>
<li>&#x53EA;&#x652F;&#x6301;4&#x5C42;&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#xFF0C;&#x6CA1;&#x6709;7&#x5C42;&#x529F;&#x80FD;</li>
<li>&#x5BF9;&#x5916;&#x8BBF;&#x95EE;&#x7684;&#x65F6;&#x5019;&#xFF0C;NodePort&#x7C7B;&#x578B;&#x9700;&#x8981;&#x5728;&#x5916;&#x90E8;&#x642D;&#x5EFA;&#x989D;&#x5916;&#x7684;&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#xFF0C;&#x800C;LoadBalancer&#x8981;&#x6C42;kubernetes&#x5FC5;&#x987B;&#x8DD1;&#x5728;&#x652F;&#x6301;&#x7684;cloud provider&#x4E0A;&#x9762;</li>
</ul>
<p>Ingress&#x5C31;&#x662F;&#x4E3A;&#x4E86;&#x89E3;&#x51B3;&#x8FD9;&#x4E9B;&#x9650;&#x5236;&#x800C;&#x5F15;&#x5165;&#x7684;&#x65B0;&#x8D44;&#x6E90;&#xFF0C;&#x4E3B;&#x8981;&#x7528;&#x6765;&#x5C06;&#x670D;&#x52A1;&#x66B4;&#x9732;&#x5230;cluster&#x5916;&#x9762;&#xFF0C;&#x5E76;&#x4E14;&#x53EF;&#x4EE5;&#x81EA;&#x5B9A;&#x4E49;&#x670D;&#x52A1;&#x7684;&#x8BBF;&#x95EE;&#x7B56;&#x7565;&#x3002;&#x6BD4;&#x5982;&#x60F3;&#x8981;&#x901A;&#x8FC7;&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#x5668;&#x5B9E;&#x73B0;&#x4E0D;&#x540C;&#x5B50;&#x57DF;&#x540D;&#x5230;&#x4E0D;&#x540C;&#x670D;&#x52A1;&#x7684;&#x8BBF;&#x95EE;&#xFF1A;</p>
<pre><code>foo.bar.com --| |-&gt; foo.bar.com s1:80
| 178.91.123.132 |
bar.foo.com --| |-&gt; bar.foo.com s2:80
</code></pre><p>&#x53EF;&#x4EE5;&#x8FD9;&#x6837;&#x6765;&#x5B9A;&#x4E49;Ingress&#xFF1A;</p>
<pre><code class="lang-yaml"><span class="hljs-attr">apiVersion:</span> extensions/v1beta1
<span class="hljs-attr">kind:</span> Ingress
<span class="hljs-attr">metadata:</span>
<span class="hljs-attr"> name:</span> test
<span class="hljs-attr">spec:</span>
<span class="hljs-attr"> rules:</span>
<span class="hljs-attr"> - host:</span> foo.bar.com
<span class="hljs-attr"> http:</span>
<span class="hljs-attr"> paths:</span>
<span class="hljs-attr"> - backend:</span>
<span class="hljs-attr"> serviceName:</span> s1
<span class="hljs-attr"> servicePort:</span> <span class="hljs-number">80</span>
<span class="hljs-attr"> - host:</span> bar.foo.com
<span class="hljs-attr"> http:</span>
<span class="hljs-attr"> paths:</span>
<span class="hljs-attr"> - backend:</span>
<span class="hljs-attr"> serviceName:</span> s2
<span class="hljs-attr"> servicePort:</span> <span class="hljs-number">80</span>
</code></pre>
<p><strong>&#x6CE8;&#x610F;&#xFF1A;</strong> Ingress&#x672C;&#x8EAB;&#x5E76;&#x4E0D;&#x4F1A;&#x81EA;&#x52A8;&#x521B;&#x5EFA;&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#x5668;&#xFF0C;cluster&#x4E2D;&#x9700;&#x8981;&#x8FD0;&#x884C;&#x4E00;&#x4E2A;ingress controller&#x6765;&#x6839;&#x636E;Ingress&#x7684;&#x5B9A;&#x4E49;&#x6765;&#x7BA1;&#x7406;&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#x5668;&#x3002;&#x76EE;&#x524D;&#x793E;&#x533A;&#x63D0;&#x4F9B;&#x4E86;nginx&#x548C;gce&#x7684;&#x53C2;&#x8003;&#x5B9E;&#x73B0;&#x3002;</p>
<p><a href="https://traefik.io" target="_blank">Traefik</a>&#x63D0;&#x4F9B;&#x4E86;&#x6613;&#x7528;&#x7684;Ingress Controller&#xFF0C;&#x4F7F;&#x7528;&#x65B9;&#x6CD5;&#x89C1;<a href="https://docs.traefik.io/user-guide/kubernetes/" target="_blank">https://docs.traefik.io/user-guide/kubernetes/</a>&#x3002;</p>
<h2 id="service-load-balancer">Service Load Balancer</h2>
<p>&#x5728;Ingress&#x51FA;&#x73B0;&#x4EE5;&#x524D;&#xFF0C;Service Load Balancer&#x662F;&#x63A8;&#x8350;&#x7684;&#x89E3;&#x51B3;Service&#x5C40;&#x9650;&#x6027;&#x7684;&#x65B9;&#x5F0F;&#x3002;Service Load Balancer&#x5C06;haproxy&#x8DD1;&#x5728;&#x5BB9;&#x5668;&#x4E2D;&#xFF0C;&#x5E76;&#x76D1;&#x63A7;service&#x548C;endpoint&#x7684;&#x53D8;&#x5316;&#xFF0C;&#x901A;&#x8FC7;&#x5BB9;&#x5668;IP&#x5BF9;&#x5916;&#x63D0;&#x4F9B;4&#x5C42;&#x548C;7&#x5C42;&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#x670D;&#x52A1;&#x3002;</p>
<p>&#x793E;&#x533A;&#x63D0;&#x4F9B;&#x7684;Service Load Balancer&#x652F;&#x6301;&#x56DB;&#x79CD;&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#x534F;&#x8BAE;&#xFF1A;TCP&#x3001;HTTP&#x3001;HTTPS&#x548C;SSL TERMINATION&#xFF0C;&#x5E76;&#x652F;&#x6301;ACL&#x8BBF;&#x95EE;&#x63A7;&#x5236;&#x3002;</p>
<h2 id="custom-load-balancer">Custom Load Balancer</h2>
<p>&#x867D;&#x7136;Kubernetes&#x63D0;&#x4F9B;&#x4E86;&#x4E30;&#x5BCC;&#x7684;&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#x673A;&#x5236;&#xFF0C;&#x4F46;&#x5728;&#x5B9E;&#x9645;&#x4F7F;&#x7528;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x8FD8;&#x662F;&#x4F1A;&#x78B0;&#x5230;&#x4E00;&#x4E9B;&#x590D;&#x6742;&#x7684;&#x573A;&#x666F;&#x662F;&#x5B83;&#x4E0D;&#x80FD;&#x652F;&#x6301;&#x7684;&#xFF0C;&#x6BD4;&#x5982;&#xFF1A;</p>
<ul>
<li>&#x63A5;&#x5165;&#x5DF2;&#x6709;&#x7684;&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#x8BBE;&#x5907;</li>
<li>&#x591A;&#x79DF;&#x6237;&#x7F51;&#x7EDC;&#x60C5;&#x51B5;&#x4E0B;&#xFF0C;&#x5BB9;&#x5668;&#x7F51;&#x7EDC;&#x548C;&#x4E3B;&#x673A;&#x7F51;&#x7EDC;&#x662F;&#x9694;&#x79BB;&#x7684;&#xFF0C;&#x8FD9;&#x6837;<code>kube-proxy</code>&#x5C31;&#x4E0D;&#x80FD;&#x6B63;&#x5E38;&#x5DE5;&#x4F5C;</li>
</ul>
<p>&#x8FD9;&#x4E2A;&#x65F6;&#x5019;&#x5C31;&#x53EF;&#x4EE5;&#x81EA;&#x5B9A;&#x4E49;&#x7EC4;&#x4EF6;&#xFF0C;&#x5E76;&#x4EE3;&#x66FF;kube-proxy&#x6765;&#x505A;&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#x3002;&#x57FA;&#x672C;&#x7684;&#x601D;&#x8DEF;&#x662F;&#x76D1;&#x63A7;kubernetes&#x4E2D;service&#x548C;endpoints&#x7684;&#x53D8;&#x5316;&#xFF0C;&#x5E76;&#x6839;&#x636E;&#x8FD9;&#x4E9B;&#x53D8;&#x5316;&#x6765;&#x914D;&#x7F6E;&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#x5668;&#x3002;&#x6BD4;&#x5982;weave flux&#x3001;nginx plus&#x3001;kube2haproxy&#x7B49;&#x3002;</p>
<h2 id="endpoints">Endpoints</h2>
<p>&#x6709;&#x51E0;&#x79CD;&#x60C5;&#x51B5;&#x4E0B;&#x9700;&#x8981;&#x7528;&#x5230;&#x6CA1;&#x6709;selector&#x7684;service&#x3002;</p>
<ul>
<li>&#x4F7F;&#x7528;kubernetes&#x96C6;&#x7FA4;&#x5916;&#x90E8;&#x7684;&#x6570;&#x636E;&#x5E93;&#x65F6;</li>
<li>service&#x4E2D;&#x7528;&#x5230;&#x4E86;&#x5176;&#x4ED6;namespace&#x6216;kubernetes&#x96C6;&#x7FA4;&#x4E2D;&#x7684;service</li>
<li>&#x5728;kubernetes&#x7684;&#x5DE5;&#x4F5C;&#x8D1F;&#x8F7D;&#x4E0E;&#x96C6;&#x7FA4;&#x5916;&#x7684;&#x540E;&#x7AEF;&#x4E4B;&#x95F4;&#x4E92;&#x76F8;&#x8FC1;&#x79FB;</li>
</ul>
<p>&#x53EF;&#x4EE5;&#x8FD9;&#x6837;&#x5B9A;&#x4E49;&#x4E00;&#x4E2A;&#x6CA1;&#x6709;selector&#x7684;service&#x3002;</p>
<pre><code class="lang-yaml"><span class="hljs-attr">kind:</span> Service
<span class="hljs-attr">apiVersion:</span> v1
<span class="hljs-attr">metadata:</span>
<span class="hljs-attr"> name:</span> my-service
<span class="hljs-attr">spec:</span>
<span class="hljs-attr"> ports:</span>
<span class="hljs-attr"> - protocol:</span> TCP
<span class="hljs-attr"> port:</span> <span class="hljs-number">80</span>
<span class="hljs-attr"> targetPort:</span> <span class="hljs-number">9376</span>
</code></pre>
<p>&#x5B9A;&#x4E49;&#x4E00;&#x4E2A;Endpoints&#x6765;&#x5BF9;&#x5E94;&#x8BE5;service&#x3002;</p>
<pre><code class="lang-yaml"><span class="hljs-attr">kind:</span> Endpoints
<span class="hljs-attr">apiVersion:</span> v1
<span class="hljs-attr">metadata:</span>
<span class="hljs-attr"> name:</span> my-service
<span class="hljs-attr">subsets:</span>
<span class="hljs-attr"> - addresses:</span>
<span class="hljs-attr"> - ip:</span> <span class="hljs-number">1.2</span><span class="hljs-number">.3</span><span class="hljs-number">.4</span>
<span class="hljs-attr"> ports:</span>
<span class="hljs-attr"> - port:</span> <span class="hljs-number">9376</span>
</code></pre>
<p>&#x8BBF;&#x95EE;&#x6CA1;&#x6709;selector&#x7684;service&#x8DDF;&#x8BBF;&#x95EE;&#x6709;selector&#x7684;service&#x65F6;&#x6CA1;&#x6709;&#x4EFB;&#x4F55;&#x533A;&#x522B;&#x3002;</p>
<p>&#x4F7F;&#x7528;kubernetes&#x65F6;&#x6709;&#x4E00;&#x4E2A;&#x5F88;&#x5E38;&#x89C1;&#x7684;&#x9700;&#x6C42;&#xFF0C;&#x5C31;&#x662F;&#x5F53;&#x6570;&#x636E;&#x5E93;&#x90E8;&#x7F72;&#x5728;kubernetes&#x96C6;&#x7FA4;&#x4E4B;&#x5916;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x96C6;&#x7FA4;&#x5185;&#x7684;service&#x5982;&#x4F55;&#x8BBF;&#x95EE;&#x6570;&#x636E;&#x5E93;&#x5462;&#xFF1F;&#x5F53;&#x7136;&#x4F60;&#x53EF;&#x4EE5;&#x76F4;&#x63A5;&#x4F7F;&#x7528;&#x6570;&#x636E;&#x5E93;&#x7684;IP&#x5730;&#x5740;&#x548C;&#x7AEF;&#x53E3;&#x53F7;&#x6765;&#x76F4;&#x63A5;&#x8BBF;&#x95EE;&#xFF0C;&#x6709;&#x6CA1;&#x6709;&#x4EC0;&#x4E48;&#x4F18;&#x96C5;&#x7684;&#x65B9;&#x5F0F;&#x5462;&#xFF1F;&#x4F60;&#x9700;&#x8981;&#x7528;&#x5230;<code>ExternalName Service</code>&#x3002;</p>
<pre><code class="lang-yaml"><span class="hljs-attr">kind:</span> Service
<span class="hljs-attr">apiVersion:</span> v1
<span class="hljs-attr">metadata:</span>
<span class="hljs-attr"> name:</span> my-service
<span class="hljs-attr"> namespace:</span> prod
<span class="hljs-attr">spec:</span>
<span class="hljs-attr"> type:</span> ExternalName
<span class="hljs-attr"> externalName:</span> my.database.example.com
<span class="hljs-attr"> ports:</span>
<span class="hljs-attr"> - port:</span> <span class="hljs-number">12345</span>
</code></pre>
<p>&#x8FD9;&#x4E2A;&#x4F8B;&#x5B50;&#x4E2D;&#xFF0C;&#x5728;kubernetes&#x96C6;&#x7FA4;&#x5185;&#x8BBF;&#x95EE;<code>my-service</code>&#x5B9E;&#x9645;&#x4E0A;&#x4F1A;&#x91CD;&#x5B9A;&#x5411;&#x5230;<code>my.database.example.com:12345</code>&#x8FD9;&#x4E2A;&#x5730;&#x5740;&#x3002;</p>
<h2 id="&#x53C2;&#x8003;&#x8D44;&#x6599;">&#x53C2;&#x8003;&#x8D44;&#x6599;</h2>
<ul>
<li><a href="https://kubernetes.io/docs/concepts/services-networking/service/" target="_blank">https://kubernetes.io/docs/concepts/services-networking/service/</a></li>
<li><a href="http://kubernetes.io/docs/user-guide/ingress/" target="_blank">http://kubernetes.io/docs/user-guide/ingress/</a></li>
<li><a href="https://github.com/kubernetes/contrib/tree/master/service-loadbalancer" target="_blank">https://github.com/kubernetes/contrib/tree/master/service-loadbalancer</a></li>
<li><a href="https://www.nginx.com/blog/load-balancing-kubernetes-services-nginx-plus/" target="_blank">https://www.nginx.com/blog/load-balancing-kubernetes-services-nginx-plus/</a></li>
<li><a href="https://github.com/weaveworks/flux" target="_blank">https://github.com/weaveworks/flux</a></li>
<li><a href="https://github.com/AdoHe/kube2haproxy" target="_blank">https://github.com/AdoHe/kube2haproxy</a></li>
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