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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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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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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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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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4.4.1.1 使用GlusterFS做持久化存储
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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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< h1 id = "微服务中的服务发现" > 微 服 务 中 的 服 务 发 现 < / h1 >
< p > 在 单 体 架 构 时 ， 因 为 服 务 不 会 经 常 和 动 态 迁 移 ， 所 有 服 务 地 址 可 以 直 接 在 配 置 文 件 中 配 置 ， 所 以 也 不 会 有 服 务 发 现 的 问 题 。 但 是 对 于 微 服 务 来 说 ， 应 用 的 拆 分 ， 服 务 之 间 的 解 耦 ， 和 服 务 动 态 扩 展 带 来 的 服 务 迁 移 ， 服 务 发 现 就 成 了 微 服 务 中 的 一 个 关 键 问 题 。 < / p >
< p > 服 务 发 现 分 为 < strong > 客 户 端 服 务 发 现 < / strong > 和 < strong > 服 务 端 服 务 发 现 < / strong > 两 种 ， 架 构 如 下 图 所 示 。 < / p >
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< figure id = "fig1.5.1.1.1" > < img src = "../images/service-discovery-in-microservices.png" alt = "微服务中的服务发现" > < figcaption > Figure: 微 服 务 中 的 服 务 发 现 < / figcaption > < / figure >
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< p > 这 两 种 架 构 都 各 有 利 弊 ， 我 们 拿 客 户 端 服 务 发 现 软 件 Eureka和 服 务 端 服 务 发 现 架 构 Kubernetes/SkyDNS+Ingress LB+Traefik+PowerDNS为 例 说 明 。 < / p >
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< th style = "text-align:left" > 服 务 发 现 方 案 < / th >
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< td style = "text-align:left" > Eureka< / td >
< td > 使 用 简 单 ， 适 用 于 java语 言 开 发 的 项 目 ， 比 服 务 端 服 务 发 现 少 一 次 网 络 跳 转 < / td >
< td > 对 非 Java语 言 的 支 持 不 够 好 ， Consumer需 要 内 置 特 定 的 服 务 发 现 客 户 端 和 发 现 逻 辑 < / td >
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< td style = "text-align:left" > Kubernetes< / td >
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< td > Consumer无 需 关 注 服 务 发 现 具 体 细 节 ， 只 需 知 道 服 务 的 DNS域 名 即 可 ， 支 持 异 构 语 言 开 发 < / td >
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< p > < strong > Eureka< / strong > 也 不 是 单 独 使 用 的 ， 一 般 会 配 合 ribbon 一 起 使 用 ， ribbon 作 为 路 由 和 负 载 均 衡 。 < / p >
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< h2 id = "参考" > 参 考 < / h2 >
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< p > < a href = "http://www.infoq.com/cn/articles/background-architecture-and-solutions-of-service-discovery" target = "_blank" > 谈 服 务 发 现 的 背 景 、 架 构 以 及 落 地 方 案 < / a > < / p >
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