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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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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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< p > 在 一 个 Kubernetes集 群 中 可 以 使 用 namespace创 建 多 个 “ 虚 拟 集 群 ” ， 这 些 namespace之 间 可 以 完 全 隔 离 ， 也 可 以 通 过 某 种 方 式 ， 让 一 个 namespace中 的 service可 以 访 问 到 其 他 的 namespace中 的 服 务 ， 我 们 < a href = "../practice/install-kbernetes1.6-on-centos.html" > 在 CentOS中 部 署 kubernetes1.6集 群 < / a > 的 时 候 就 用 到 了 好 几 个 跨 越 namespace的 服 务 ， 比 如 Traefik ingress和 < code > kube-system< / code > namespace下 的 service就 可 以 为 整 个 集 群 提 供 服 务 ， 这 些 都 需 要 通 过 RBAC定 义 集 群 级 别 的 角 色 来 实 现 。 < / p >
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< h2 id = "哪些情况下适合使用多个namesapce" > 哪 些 情 况 下 适 合 使 用 多 个 namesapce< / h2 >
< p > 因 为 namespace可 以 提 供 独 立 的 命 名 空 间 ， 因 此 可 以 实 现 部 分 的 环 境 隔 离 。 当 你 的 项 目 和 人 员 众 多 的 时 候 可 以 考 虑 根 据 项 目 属 性 ， 例 如 生 产 、 测 试 、 开 发 划 分 不 同 的 namespace。 < / p >
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< p > < strong > 获 取 集 群 中 有 哪 些 namespace< / strong > < / p >
< pre > < code > kubectl get ns
< / code > < / pre > < p > 集 群 中 默 认 会 有 < code > default< / code > 和 < code > kube-system< / code > 这 两 个 namespace。 < / p >
< p > 在 执 行 < code > kubectl< / code > 命 令 时 可 以 使 用 < code > -n< / code > 指 定 操 作 的 namespace。 < / p >
< p > 用 户 的 普 通 应 用 默 认 是 在 < code > default< / code > 下 ， 与 集 群 管 理 相 关 的 为 整 个 集 群 提 供 服 务 的 应 用 一 般 部 署 在 < code > kube-system< / code > 的 namespace下 ， 例 如 我 们 在 安 装 kubernetes集 群 时 部 署 的 < code > kubedns< / code > 、 < code > heapseter< / code > 、 < code > EFK< / code > 等 都 是 在 这 个 namespace下 面 。 < / p >
< p > 另 外 ， 并 不 是 所 有 的 资 源 对 象 都 会 对 应 namespace， < code > node< / code > 和 < code > persistentVolume< / code > 就 不 属 于 任 何 namespace。 < / p >
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