2017-08-21 17:44:43 +08:00
<!DOCTYPE HTML>
2017-09-19 22:01:07 +08:00
< html lang = "zh-hans" >
2017-08-21 17:44:43 +08:00
< head >
< meta charset = "UTF-8" >
< meta content = "text/html; charset=utf-8" http-equiv = "Content-Type" >
2017-09-03 13:29:38 +08:00
< title > 2.2 Objects · Kubernetes Handbook< / title >
2017-08-21 17:44:43 +08:00
< meta http-equiv = "X-UA-Compatible" content = "IE=edge" / >
< meta name = "description" content = "" >
< meta name = "generator" content = "GitBook 3.2.2" >
< meta name = "author" content = "Jimmy Song" >
< link rel = "stylesheet" href = "../gitbook/style.css" >
< link rel = "stylesheet" href = "../gitbook/gitbook-plugin-splitter/splitter.css" >
< link rel = "stylesheet" href = "../gitbook/gitbook-plugin-page-toc-button/plugin.css" >
< link rel = "stylesheet" href = "../gitbook/gitbook-plugin-image-captions/image-captions.css" >
2017-10-09 15:28:05 +08:00
< link rel = "stylesheet" href = "../gitbook/gitbook-plugin-back-to-top-button/plugin.css" >
2017-08-21 17:44:43 +08:00
2017-10-09 15:28:05 +08:00
< link rel = "stylesheet" href = "../gitbook/gitbook-plugin-search-plus/search.css" >
2017-09-19 21:38:03 +08:00
2017-10-09 15:28:05 +08:00
< link rel = "stylesheet" href = "../gitbook/gitbook-plugin-tbfed-pagefooter/footer.css" >
2017-08-21 17:44:43 +08:00
< link rel = "stylesheet" href = "../gitbook/gitbook-plugin-highlight/website.css" >
< link rel = "stylesheet" href = "../gitbook/gitbook-plugin-fontsettings/website.css" >
2017-10-09 15:28:05 +08:00
2017-08-21 17:44:43 +08:00
< meta name = "HandheldFriendly" content = "true" / >
< meta name = "viewport" content = "width=device-width, initial-scale=1, user-scalable=no" >
< meta name = "apple-mobile-web-app-capable" content = "yes" >
< meta name = "apple-mobile-web-app-status-bar-style" content = "black" >
< link rel = "apple-touch-icon-precomposed" sizes = "152x152" href = "../gitbook/images/apple-touch-icon-precomposed-152.png" >
< link rel = "shortcut icon" href = "../gitbook/images/favicon.ico" type = "image/x-icon" >
< link rel = "next" href = "pod-overview.html" / >
< link rel = "prev" href = "concepts.html" / >
2017-10-09 15:28:05 +08:00
< link rel = "shortcut icon" href = '../favicon.ico' type = "image/x-icon" >
< link rel = "bookmark" href = '../favicon.ico' type = "image/x-icon" >
< style >
@media only screen and (max-width: 640px) {
.book-header .hidden-mobile {
display: none;
}
}
< / style >
< script >
window["gitbook-plugin-github-buttons"] = {"repo":"rootsongjc/kubernetes-handbook","types":["star"],"size":"small"};
< / script >
2017-08-21 17:44:43 +08:00
< / head >
< body >
< div class = "book" >
< div class = "book-summary" >
< div id = "book-search-input" role = "search" >
2017-09-19 22:01:07 +08:00
< input type = "text" placeholder = "输入并搜索" / >
2017-08-21 17:44:43 +08:00
< / div >
< nav role = "navigation" >
< ul class = "summary" >
2017-10-09 15:28:05 +08:00
< li >
< a href = "https://jimmysong.io" target = "_blank" class = "custom-link" > Home< / a >
< / li >
2017-08-21 17:44:43 +08:00
2017-10-09 15:28:05 +08:00
< li class = "divider" > < / li >
2017-08-21 17:44:43 +08:00
< li class = "chapter " data-level = "1.1" data-path = "../" >
< a href = "../" >
1. 前言
< / a >
< / li >
< li class = "chapter " data-level = "1.2" data-path = "./" >
< a href = "./" >
2. 概念原理
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "1.2.1" data-path = "concepts.html" >
< a href = "concepts.html" >
2.1 设计理念
< / a >
< / li >
< li class = "chapter active" data-level = "1.2.2" data-path = "objects.html" >
< a href = "objects.html" >
2017-09-03 13:29:38 +08:00
2.2 Objects
2017-08-21 17:44:43 +08:00
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "1.2.2.1" data-path = "pod-overview.html" >
< a href = "pod-overview.html" >
2.2.1 Pod
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "1.2.2.1.1" data-path = "pod.html" >
< a href = "pod.html" >
2.2.1.1 Pod解析
< / a >
2017-08-31 23:28:33 +08:00
< / li >
< li class = "chapter " data-level = "1.2.2.1.2" data-path = "init-containers.html" >
< a href = "init-containers.html" >
2.2.1.2 Init容器
< / a >
2017-09-03 15:58:39 +08:00
< / li >
< li class = "chapter " data-level = "1.2.2.1.3" data-path = "pod-security-policy.html" >
< a href = "pod-security-policy.html" >
2.2.1.3 Pod安全策略
< / a >
2017-09-17 15:39:26 +08:00
< / li >
< li class = "chapter " data-level = "1.2.2.1.4" data-path = "pod-lifecycle.html" >
< a href = "pod-lifecycle.html" >
2.2.1.4 Pod的生命周期
< / a >
2017-08-21 17:44:43 +08:00
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "1.2.2.2" data-path = "node.html" >
< a href = "node.html" >
2.2.2 Node
< / a >
< / li >
< li class = "chapter " data-level = "1.2.2.3" data-path = "namespace.html" >
< a href = "namespace.html" >
2.2.3 Namespace
< / a >
< / li >
< li class = "chapter " data-level = "1.2.2.4" data-path = "service.html" >
< a href = "service.html" >
2.2.4 Service
< / a >
< / li >
< li class = "chapter " data-level = "1.2.2.5" data-path = "volume.html" >
< a href = "volume.html" >
2.2.5 Volume和Persistent Volume
< / a >
< / li >
< li class = "chapter " data-level = "1.2.2.6" data-path = "deployment.html" >
< a href = "deployment.html" >
2.2.6 Deployment
< / a >
< / li >
< li class = "chapter " data-level = "1.2.2.7" data-path = "secret.html" >
< a href = "secret.html" >
2.2.7 Secret
< / a >
< / li >
< li class = "chapter " data-level = "1.2.2.8" data-path = "statefulset.html" >
< a href = "statefulset.html" >
2.2.8 StatefulSet
< / a >
< / li >
< li class = "chapter " data-level = "1.2.2.9" data-path = "daemonset.html" >
< a href = "daemonset.html" >
2.2.9 DaemonSet
< / a >
< / li >
< li class = "chapter " data-level = "1.2.2.10" data-path = "serviceaccount.html" >
< a href = "serviceaccount.html" >
2.2.10 ServiceAccount
< / a >
< / li >
< li class = "chapter " data-level = "1.2.2.11" data-path = "replicaset.html" >
< a href = "replicaset.html" >
2.2.11 ReplicationController和ReplicaSet
< / a >
< / li >
< li class = "chapter " data-level = "1.2.2.12" data-path = "job.html" >
< a href = "job.html" >
2.2.12 Job
< / a >
< / li >
< li class = "chapter " data-level = "1.2.2.13" data-path = "cronjob.html" >
< a href = "cronjob.html" >
2.2.13 CronJob
< / a >
< / li >
< li class = "chapter " data-level = "1.2.2.14" data-path = "ingress.html" >
< a href = "ingress.html" >
2.2.14 Ingress
< / a >
< / li >
< li class = "chapter " data-level = "1.2.2.15" data-path = "configmap.html" >
< a href = "configmap.html" >
2.2.15 ConfigMap
< / a >
< / li >
< li class = "chapter " data-level = "1.2.2.16" data-path = "horizontal-pod-autoscaling.html" >
< a href = "horizontal-pod-autoscaling.html" >
2.2.16 Horizontal Pod Autoscaling
< / a >
< / li >
< li class = "chapter " data-level = "1.2.2.17" data-path = "label.html" >
< a href = "label.html" >
2.2.17 Label
< / a >
2017-09-03 15:58:39 +08:00
< / li >
< li class = "chapter " data-level = "1.2.2.18" data-path = "garbage-collection.html" >
< a href = "garbage-collection.html" >
2.2.18 垃圾收集
< / a >
< / li >
< li class = "chapter " data-level = "1.2.2.19" data-path = "network-policy.html" >
< a href = "network-policy.html" >
2.2.19 NetworkPolicy
< / a >
2017-08-21 17:44:43 +08:00
< / li >
< / ul >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "1.3" data-path = "../guide/" >
< a href = "../guide/" >
3. 用户指南
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "1.3.1" data-path = "../guide/resource-configuration.html" >
< a href = "../guide/resource-configuration.html" >
2017-09-28 21:20:49 +08:00
3.1 资源对象配置
2017-08-21 17:44:43 +08:00
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "1.3.1.1" data-path = "../guide/configure-liveness-readiness-probes.html" >
< a href = "../guide/configure-liveness-readiness-probes.html" >
3.1.1 配置Pod的liveness和readiness探针
< / a >
< / li >
< li class = "chapter " data-level = "1.3.1.2" data-path = "../guide/configure-pod-service-account.html" >
< a href = "../guide/configure-pod-service-account.html" >
3.1.2 配置Pod的Service Account
< / a >
2017-09-28 21:20:49 +08:00
< / li >
< li class = "chapter " data-level = "1.3.1.3" data-path = "../guide/secret-configuration.html" >
< a href = "../guide/secret-configuration.html" >
3.1.3 Secret配置
< / a >
2017-10-10 14:51:45 +08:00
< / li >
< li class = "chapter " data-level = "1.3.1.4" data-path = "../guide/resource-quota-management.html" >
< a href = "../guide/resource-quota-management.html" >
3.2.3 管理namespace中的资源配额
< / a >
2017-08-21 17:44:43 +08:00
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "1.3.2" data-path = "../guide/command-usage.html" >
< a href = "../guide/command-usage.html" >
3.2 命令使用
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "1.3.2.1" data-path = "../guide/using-kubectl.html" >
< a href = "../guide/using-kubectl.html" >
3.2.1 使用kubectl
< / a >
2017-09-16 20:56:43 +08:00
< / li >
< li class = "chapter " data-level = "1.3.2.2" data-path = "../guide/docker-cli-to-kubectl.html" >
< a href = "../guide/docker-cli-to-kubectl.html" >
3.2.2 docker用户过度到kubectl命令行指南
< / a >
2017-08-21 17:44:43 +08:00
< / li >
< / ul >
< / li >
2017-09-07 12:29:13 +08:00
< li class = "chapter " data-level = "1.3.3" data-path = "../guide/cluster-security-management.html" >
2017-08-21 17:44:43 +08:00
2017-09-07 12:29:13 +08:00
< a href = "../guide/cluster-security-management.html" >
2017-08-21 17:44:43 +08:00
2017-09-07 12:29:13 +08:00
3.3 集群安全性管理
2017-08-21 17:44:43 +08:00
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "1.3.3.1" data-path = "../guide/managing-tls-in-a-cluster.html" >
< a href = "../guide/managing-tls-in-a-cluster.html" >
3.3.1 管理集群中的TLS
< / a >
2017-08-21 18:44:34 +08:00
< / li >
< li class = "chapter " data-level = "1.3.3.2" data-path = "../guide/kubelet-authentication-authorization.html" >
< a href = "../guide/kubelet-authentication-authorization.html" >
3.3.2 kubelet的认证授权
< / a >
< / li >
< li class = "chapter " data-level = "1.3.3.3" data-path = "../guide/tls-bootstrapping.html" >
< a href = "../guide/tls-bootstrapping.html" >
3.3.3 TLS bootstrap
< / a >
2017-08-31 14:23:44 +08:00
< / li >
< li class = "chapter " data-level = "1.3.3.4" data-path = "../guide/kubectl-user-authentication-authorization.html" >
< a href = "../guide/kubectl-user-authentication-authorization.html" >
3.3.4 kubectl的用户认证授权
< / a >
< / li >
< li class = "chapter " data-level = "1.3.3.5" data-path = "../guide/rbac.html" >
< a href = "../guide/rbac.html" >
3.3.5 RBAC——基于角色的访问控制
< / a >
2017-09-07 14:13:59 +08:00
< / li >
< li class = "chapter " data-level = "1.3.3.6" data-path = "../guide/ip-masq-agent.html" >
< a href = "../guide/ip-masq-agent.html" >
3.3.6 IP伪装代理
< / a >
2017-08-21 17:44:43 +08:00
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "1.3.4" data-path = "../guide/access-kubernetes-cluster.html" >
< a href = "../guide/access-kubernetes-cluster.html" >
3.4 访问 Kubernetes 集群
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "1.3.4.1" data-path = "../guide/access-cluster.html" >
< a href = "../guide/access-cluster.html" >
3.4.1 访问集群
< / a >
< / li >
< li class = "chapter " data-level = "1.3.4.2" data-path = "../guide/authenticate-across-clusters-kubeconfig.html" >
< a href = "../guide/authenticate-across-clusters-kubeconfig.html" >
3.4.2 使用 kubeconfig 文件配置跨集群认证
< / a >
< / li >
< li class = "chapter " data-level = "1.3.4.3" data-path = "../guide/connecting-to-applications-port-forward.html" >
< a href = "../guide/connecting-to-applications-port-forward.html" >
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 >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "1.3.5" data-path = "../guide/application-development-deployment-flow.html" >
< a href = "../guide/application-development-deployment-flow.html" >
3.5 在kubernetes中开发部署应用
< / a >
< ul class = "articles" >
< 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 >
2017-08-21 18:44:34 +08:00
< / li >
< li class = "chapter " data-level = "1.3.5.2" data-path = "../guide/migrating-hadoop-yarn-to-kubernetes.html" >
< a href = "../guide/migrating-hadoop-yarn-to-kubernetes.html" >
3.5.2 迁移传统应用到kubernetes中——以Hadoop YARN为例
< / a >
2017-08-21 17:44:43 +08:00
< / li >
< / ul >
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "1.4" data-path = "../practice/" >
< a href = "../practice/" >
4. 最佳实践
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "1.4.1" data-path = "../practice/install-kbernetes1.6-on-centos.html" >
< a href = "../practice/install-kbernetes1.6-on-centos.html" >
4.1 在CentOS上部署kubernetes1.6集群
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "1.4.1.1" data-path = "../practice/create-tls-and-secret-key.html" >
< a href = "../practice/create-tls-and-secret-key.html" >
4.1.1 创建TLS证书和秘钥
< / a >
< / li >
< li class = "chapter " data-level = "1.4.1.2" data-path = "../practice/create-kubeconfig.html" >
< a href = "../practice/create-kubeconfig.html" >
4.1.2 创建kubeconfig文件
< / a >
< / li >
< li class = "chapter " data-level = "1.4.1.3" data-path = "../practice/etcd-cluster-installation.html" >
< a href = "../practice/etcd-cluster-installation.html" >
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 >
< / li >
< li class = "chapter " data-level = "1.4.1.5" data-path = "../practice/master-installation.html" >
< a href = "../practice/master-installation.html" >
4.1.5 部署master节点
< / a >
< / li >
< li class = "chapter " data-level = "1.4.1.6" data-path = "../practice/node-installation.html" >
< a href = "../practice/node-installation.html" >
4.1.6 部署node节点
< / a >
< / li >
< li class = "chapter " data-level = "1.4.1.7" data-path = "../practice/kubedns-addon-installation.html" >
< a href = "../practice/kubedns-addon-installation.html" >
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 >
< ul class = "articles" >
< 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 >
2017-09-03 15:58:39 +08:00
< / 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 >
2017-09-25 21:41:08 +08:00
< / 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 >
2017-08-21 17:44:43 +08:00
< / 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 >
2017-09-01 21:04:51 +08:00
< / 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 >
< ul class = "articles" >
< 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 >
2017-08-21 17:44:43 +08:00
< / 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" >
2017-09-20 21:55:19 +08:00
< 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" >
2017-08-21 17:44:43 +08:00
< a href = "../usecases/istio.html" >
5.1.1 Istio
< / a >
< ul class = "articles" >
2017-09-20 21:55:19 +08:00
< li class = "chapter " data-level = "1.5.2.1.1" data-path = "../usecases/istio-installation.html" >
2017-08-21 17:44:43 +08:00
< a href = "../usecases/istio-installation.html" >
5.1.1.1 安装istio
< / a >
< / li >
2017-09-20 21:55:19 +08:00
< li class = "chapter " data-level = "1.5.2.1.2" data-path = "../usecases/configuring-request-routing.html" >
2017-08-21 17:44:43 +08:00
< a href = "../usecases/configuring-request-routing.html" >
5.1.1.2 配置请求的路由规则
< / a >
< / li >
< / ul >
< / li >
2017-09-20 21:55:19 +08:00
< li class = "chapter " data-level = "1.5.2.2" data-path = "../usecases/linkerd.html" >
2017-08-21 17:44:43 +08:00
< a href = "../usecases/linkerd.html" >
5.1.2 Linkerd
< / a >
< ul class = "articles" >
2017-09-20 21:55:19 +08:00
< li class = "chapter " data-level = "1.5.2.2.1" data-path = "../usecases/linkerd-user-guide.html" >
2017-08-21 17:44:43 +08:00
< a href = "../usecases/linkerd-user-guide.html" >
5.1.2.1 Linkerd 使用指南
< / a >
< / li >
< / ul >
< / li >
< / ul >
< / li >
2017-09-20 21:55:19 +08:00
< li class = "chapter " data-level = "1.5.3" data-path = "../usecases/big-data.html" >
2017-08-21 17:44:43 +08:00
< a href = "../usecases/big-data.html" >
5.2 大数据
< / a >
< ul class = "articles" >
2017-09-20 21:55:19 +08:00
< li class = "chapter " data-level = "1.5.3.1" data-path = "../usecases/spark-standalone-on-kubernetes.html" >
2017-08-21 17:44:43 +08:00
2017-08-30 14:20:52 +08:00
< a href = "../usecases/spark-standalone-on-kubernetes.html" >
2017-08-21 17:44:43 +08:00
2017-08-30 14:20:52 +08:00
5.2.1 Spark standalone on Kubernetes
2017-08-21 17:44:43 +08:00
< / a >
2017-08-31 14:23:44 +08:00
< / li >
2017-09-20 21:55:19 +08:00
< li class = "chapter " data-level = "1.5.3.2" data-path = "../usecases/running-spark-with-kubernetes-native-scheduler.html" >
2017-08-31 14:23:44 +08:00
2017-09-14 15:57:50 +08:00
< a href = "../usecases/running-spark-with-kubernetes-native-scheduler.html" >
2017-08-31 14:23:44 +08:00
5.2.2 运行支持kubernetes原生调度的Spark程序
< / a >
2017-08-21 17:44:43 +08:00
< / li >
< / ul >
2017-08-30 16:52:33 +08:00
< / li >
2017-09-20 21:55:19 +08:00
< li class = "chapter " data-level = "1.5.4" data-path = "../usecases/serverless.html" >
2017-08-30 16:52:33 +08:00
< a href = "../usecases/serverless.html" >
5.3 Serverless架构
< / a >
2017-08-21 17:44:43 +08:00
< / li >
< / ul >
< / li >
< li class = "chapter " data-level = "1.6" data-path = "../develop/" >
< a href = "../develop/" >
6. 开发指南
< / a >
< ul class = "articles" >
< 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
< / a >
< / li >
< li class = "chapter " data-level = "1.6.2" 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 = "1.6.3" 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 >
2017-09-21 15:00:54 +08:00
< / 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 >
2017-08-21 17:44:43 +08:00
< / li >
< / ul >
< / li >
< li class = "divider" > < / li >
< li >
< a href = "https://www.gitbook.com" target = "blank" class = "gitbook-link" >
2017-09-19 22:01:07 +08:00
本书使用 GitBook 发布
2017-08-21 17:44:43 +08:00
< / a >
< / li >
< / ul >
< / nav >
< / div >
< div class = "book-body" >
< div class = "body-inner" >
< div class = "book-header" role = "navigation" >
<!-- Title -->
< h1 >
< i class = "fa fa-circle-o-notch fa-spin" > < / i >
2017-09-03 13:29:38 +08:00
< a href = ".." > 2.2 Objects< / a >
2017-08-21 17:44:43 +08:00
< / 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" >
2017-09-03 13:29:38 +08:00
< h1 id = "objects" > Objects< / h1 >
< p > 以 下 列 举 的 内 容 都 是 kubernetes 中 的 Object， 这 些 对 象 都 可 以 在 yaml 文 件 中 作 为 一 种 API 类 型 来 配 置 。 < / p >
2017-08-21 17:44:43 +08:00
< ul >
< li > Pod< / li >
< li > Node< / li >
< li > Namespace< / li >
< li > Service< / li >
2017-09-03 13:29:38 +08:00
< li > Volume< / li >
2017-10-11 22:47:35 +08:00
< li > PersistentVolume< / li >
2017-08-21 17:44:43 +08:00
< li > Deployment< / li >
< li > Secret< / li >
< li > StatefulSet< / li >
< li > DaemonSet< / li >
< li > ServiceAccount< / li >
2017-09-03 13:29:38 +08:00
< li > ReplicationController< / li >
< li > ReplicaSet< / li >
2017-08-21 17:44:43 +08:00
< li > Job< / li >
< li > CronJob< / li >
< li > SecurityContext< / li >
2017-10-11 22:47:35 +08:00
< li > ResourceQuota< / li >
< li > LimitRange< / li >
< li > HorizontalPodAutoscaling< / li >
2017-08-21 17:44:43 +08:00
< li > Ingress< / li >
2017-08-25 14:50:46 +08:00
< li > ConfigMap< / li >
< li > Label< / li >
2017-09-03 13:29:38 +08:00
< li > ThirdPartyResources< / li >
2017-08-21 17:44:43 +08:00
< / ul >
2017-10-11 22:47:35 +08:00
< p > 我 将 它 们 简 单 的 分 类 为 以 下 几 种 资 源 对 象 ： < / p >
< table >
< thead >
< tr >
< th style = "text-align:left" > 类 别 < / th >
< th > 名 称 < / th >
< / tr >
< / thead >
< tbody >
< tr >
< td style = "text-align:left" > 资 源 对 象 < / td >
< td > Pod、 ReplicaSet、 ReplicationController、 Deployment、 StatefulSet、 DaemonSet、 Job、 CronJob、 HorizontalPodAutoscaling< / td >
< / tr >
< tr >
< td style = "text-align:left" > 配 置 对 象 < / td >
< td > Node、 Namespace、 Service、 Secret、 ConfigMap、 Ingress、 Label、 ThirdPartyResource、 ServiceAccount< / td >
< / tr >
< tr >
< td style = "text-align:left" > 存 储 对 象 < / td >
< td > Volume、 Persistent Volume< / td >
< / tr >
< tr >
< td style = "text-align:left" > 策 略 对 象 < / td >
< td > SecurityContext、 ResourceQuota、 LimitRange< / td >
< / tr >
< / tbody >
< / table >
2017-09-03 13:29:38 +08:00
< h2 id = "理解-kubernetes-中的对象" > 理 解 kubernetes 中 的 对 象 < / h2 >
< p > 在 Kubernetes 系 统 中 ， < em > Kubernetes 对 象 < / em > 是 持 久 化 的 条 目 。 Kubernetes 使 用 这 些 条 目 去 表 示 整 个 集 群 的 状 态 。 特 别 地 ， 它 们 描 述 了 如 下 信 息 ： < / p >
< ul >
< li > 什 么 容 器 化 应 用 在 运 行 （ 以 及 在 哪 个 Node 上 ） < / li >
< li > 可 以 被 应 用 使 用 的 资 源 < / li >
< li > 关 于 应 用 如 何 表 现 的 策 略 ， 比 如 重 启 策 略 、 升 级 策 略 ， 以 及 容 错 策 略 < / li >
< / ul >
< p > Kubernetes 对 象 是 “ 目 标 性 记 录 ” — — 一 旦 创 建 对 象 ， Kubernetes 系 统 将 持 续 工 作 以 确 保 对 象 存 在 。 通 过 创 建 对 象 ， 可 以 有 效 地 告 知 Kubernetes 系 统 ， 所 需 要 的 集 群 工 作 负 载 看 起 来 是 什 么 样 子 的 ， 这 就 是 Kubernetes 集 群 的 < strong > 期 望 状 态 < / strong > 。 < / p >
< p > 与 Kubernetes 对 象 工 作 — — 是 否 创 建 、 修 改 ， 或 者 删 除 — — 需 要 使 用 < a href = "https://git.k8s.io/community/contributors/devel/api-conventions.md" target = "_blank" > Kubernetes API< / a > 。 当 使 用 < code > kubectl< / code > 命 令 行 接 口 时 ， 比 如 ， CLI 会 使 用 必 要 的 Kubernetes API 调 用 ， 也 可 以 在 程 序 中 直 接 使 用 Kubernetes API。 为 了 实 现 该 目 标 ， Kubernetes 当 前 提 供 了 一 个 < code > golang< / code > < a href = "https://github.com/kubernetes/client-go" target = "_blank" > 客 户 端 库 < / a > ， 其 它 语 言 库 （ 例 如 < a href = "https://github.com/kubernetes-incubator/client-python" target = "_blank" > Python< / a > ） 也 正 在 开 发 中 。 < / p >
< h3 id = "对象-spec-与状态" > 对 象 Spec 与 状 态 < / h3 >
< p > 每 个 Kubernetes 对 象 包 含 两 个 嵌 套 的 对 象 字 段 ， 它 们 负 责 管 理 对 象 的 配 置 ： 对 象 < em > spec< / em > 和 对 象 < em > status< / em > 。 < em > spec< / em > 必 须 提 供 ， 它 描 述 了 对 象 的 < em > 期 望 状 态 < / em > — — 希 望 对 象 所 具 有 的 特 征 。 < em > status< / em > 描 述 了 对 象 的 < em > 实 际 状 态 < / em > ， 它 是 由 Kubernetes 系 统 提 供 和 更 新 。 在 任 何 时 刻 ， Kubernetes 控 制 平 面 一 直 处 于 活 跃 状 态 ， 管 理 着 对 象 的 实 际 状 态 以 与 我 们 所 期 望 的 状 态 相 匹 配 。 < / p >
< p > 例 如 ， Kubernetes Deployment 对 象 能 够 表 示 运 行 在 集 群 中 的 应 用 。 当 创 建 Deployment 时 ， 可 能 需 要 设 置 Deployment 的 spec， 以 指 定 该 应 用 需 要 有 3 个 副 本 在 运 行 。 Kubernetes 系 统 读 取 Deployment spec， 启 动 我 们 所 期 望 的 该 应 用 的 3 个 实 例 — — 更 新 状 态 以 与 spec 相 匹 配 。 如 果 那 些 实 例 中 有 失 败 的 （ 一 种 状 态 变 更 ） ， Kubernetes 系 统 通 过 修 正 来 响 应 spec 和 状 态 之 间 的 不 一 致 — — 这 种 情 况 ， 启 动 一 个 新 的 实 例 来 替 换 。 < / p >
< p > 关 于 对 象 spec、 status 和 metadata 更 多 信 息 ， 查 看 < a href = "https://git.k8s.io/community/contributors/devel/api-conventions.md" target = "_blank" > Kubernetes API Conventions< / a > 。 < / p >
< h3 id = "描述-kubernetes-对象" > 描 述 Kubernetes 对 象 < / h3 >
< p > 当 创 建 KUbernetes 对 象 时 ， 必 须 提 供 对 象 的 spec， 用 来 描 述 该 对 象 的 期 望 状 态 ， 以 及 关 于 对 象 的 一 些 基 本 信 息 （ 例 如 ， 名 称 ） 。 当 使 用 KUbernetes API 创 建 对 象 时 （ 或 者 直 接 创 建 ， 或 者 基 于 < code > kubectl< / code > ） ， API 请 求 必 须 在 请 求 体 中 包 含 JSON 格 式 的 信 息 。 < strong > 更 常 用 的 是 ， 需 要 在 .yaml 文 件 中 为 kubectl 提 供 这 些 信 息 < / strong > 。 < code > kubectl< / code > 在 执 行 API 请 求 时 ， 将 这 些 信 息 转 换 成 JSON 格 式 。 < / p >
< p > 这 里 有 一 个 < code > .yaml< / code > 示 例 文 件 ， 展 示 了 KUbernetes Deployment 的 必 需 字 段 和 对 象 spec： < / p >
< pre > < code class = "lang-yaml" > < span class = "hljs-attr" > apiVersion:< / span > apps/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 > 一 种 创 建 Deployment 的 方 式 ， 类 似 上 面 使 用 < code > .yaml< / code > 文 件 ， 是 使 用 < code > kubectl< / code > 命 令 行 接 口 （ CLI） 中 的 < a href = "https://kubernetes.io/docs/user-guide/kubectl/v1.7/#create" target = "_blank" > < code > kubectl create< / code > < / a > 命 令 ， 传 递 < code > .yaml< / code > 作 为 参 数 。 下 面 是 一 个 示 例 ： < / p >
< pre > < code class = "lang-bash" > $ kubectl create < span class = "hljs-_" > -f< / span > docs/user-guide/nginx-deployment.yaml --record
< / code > < / pre >
< p > 输 出 类 似 如 下 这 样 ： < / p >
< pre > < code class = "lang-bash" > deployment < span class = "hljs-string" > " nginx-deployment" < / span > created
< / code > < / pre >
< h3 id = "必需字段" > 必 需 字 段 < / h3 >
< p > 在 想 要 创 建 的 KUbernetes 对 象 对 应 的 < code > .yaml< / code > 文 件 中 ， 需 要 配 置 如 下 的 字 段 ： < / p >
< ul >
< li > < code > apiVersion< / code > - 创 建 该 对 象 所 使 用 的 Kubernetes API 的 版 本 < / li >
< li > < code > kind< / code > - 想 要 创 建 的 对 象 的 类 型 < / li >
< li > < code > metadata< / code > - 帮 助 识 别 对 象 唯 一 性 的 数 据 ， 包 括 一 个 < code > name< / code > 字 符 串 、 UID 和 可 选 的 < code > namespace< / code > < / li >
< / ul >
2017-10-09 15:28:05 +08:00
< p > 也 需 要 提 供 对 象 的 < code > spec< / code > 字 段 。 对 象 < code > spec< / code > 的 精 确 格 式 对 每 个 Kubernetes 对 象 来 说 是 不 同 的 ， 包 含 了 特 定 于 该 对 象 的 嵌 套 字 段 。 < a href = "https://kubernetes.io/docs/api/" target = "_blank" > Kubernetes API 参 考 < / a > 能 够 帮 助 我 们 找 到 任 何 我 们 想 创 建 的 对 象 的 spec 格 式 。 < / p >
< footer class = "page-footer" > < span class = "copyright" > Copyright © jimmysong.io 2017 all right reserved， powered by Gitbook< / span > < span class = "footer-modification" > Updated:
2017-10-11 22:47:35 +08:00
2017-10-11 22:46:33
2017-10-09 15:28:05 +08:00
< / span > < / footer >
2017-08-21 17:44:43 +08:00
< / section >
< / div >
< div class = "search-results" >
< div class = "has-results" >
< h1 class = "search-results-title" > < span class = 'search-results-count' > < / span > results matching "< span class = 'search-query' > < / span > "< / h1 >
< ul class = "search-results-list" > < / ul >
< / div >
< div class = "no-results" >
< h1 class = "search-results-title" > No results matching "< span class = 'search-query' > < / span > "< / h1 >
< / div >
< / div >
< / div >
< / div >
< / div >
< / div >
< a href = "concepts.html" class = "navigation navigation-prev " aria-label = "Previous page: 2.1 设计理念" >
< i class = "fa fa-angle-left" > < / i >
< / a >
< a href = "pod-overview.html" class = "navigation navigation-next " aria-label = "Next page: 2.2.1 Pod" >
< i class = "fa fa-angle-right" > < / i >
< / a >
< / div >
< script >
var gitbook = gitbook || [];
gitbook.push(function() {
2017-10-11 22:47:35 +08:00
gitbook.page.hasChanged({"page":{"title":"2.2 Objects","level":"1.2.2","depth":2,"next":{"title":"2.2.1 Pod","level":"1.2.2.1","depth":3,"path":"concepts/pod-overview.md","ref":"concepts/pod-overview.md","articles":[{"title":"2.2.1.1 Pod解析","level":"1.2.2.1.1","depth":4,"path":"concepts/pod.md","ref":"concepts/pod.md","articles":[]},{"title":"2.2.1.2 Init容器","level":"1.2.2.1.2","depth":4,"path":"concepts/init-containers.md","ref":"concepts/init-containers.md","articles":[]},{"title":"2.2.1.3 Pod安全策略","level":"1.2.2.1.3","depth":4,"path":"concepts/pod-security-policy.md","ref":"concepts/pod-security-policy.md","articles":[]},{"title":"2.2.1.4 Pod的生命周期","level":"1.2.2.1.4","depth":4,"path":"concepts/pod-lifecycle.md","ref":"concepts/pod-lifecycle.md","articles":[]}]},"previous":{"title":"2.1 设计理念","level":"1.2.1","depth":2,"path":"concepts/concepts.md","ref":"concepts/concepts.md","articles":[]},"dir":"ltr"},"config":{"plugins":["github","codesnippet","splitter","page-toc-button","image-captions","editlink","back-to-top-button","-lunr","-search","search-plus","github-buttons@2.1.0","favicon@^0.0.2","tbfed-pagefooter@^0.0.1","3-ba"],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"tbfed-pagefooter":{"copyright":"Copyright © jimmysong.io 2017","modify_label":"Updated:","modify_format":"YYYY-MM-DD HH:mm:ss"},"github":{"url":"https://github.com/rootsongjc/kubernetes-handbook"},"editlink":{"label":"编辑本页","multilingual":false,"base":"https://github.com/rootsongjc/kubernetes-handbook/blob/master/"},"splitter":{},"codesnippet":{},"fontsettings":{"theme":"white","family":"sans","size":2},"highlight":{},"favicon":{"shortcut":"favicon.ico","bookmark":"favicon.ico"},"page-toc-button":{},"back-to-top-button":{},"github-buttons":{"repo":"rootsongjc/kubernetes-handbook","types":["star"],"size":"small"},"3-ba":{"configuration":"auto","token":"11f7d254cfa4e0ca44b175c66d379ecc"},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"search-plus":{},"image-captions":{"caption":"图片 - _CAPTION_","variable_name":"_pictures"}},"theme":"default","author":"Jimmy Song","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{"_pictures":[{"backlink":"concepts/index.html#fig1.2.1","level":"1.2","list_caption":"Figure: Borg架构","alt":"Borg架构","nro":1,"url":"../images/borg.png","index":1,"caption_template":"图片 - _CAPTION_","label":"Borg架构","attributes":{},"skip":false,"key":"1.2.1"},{"backlink":"concepts/index.html#fig1.2.2","level":"1.2","list_caption":"Figure: Kubernetes架构","alt":"Kubernetes架构","nro":2,"url":"../images/architecture.png","index":2,"caption_template":"图片 - _CAPTION_","label":"Kubernetes架构","attributes":{},"skip":false,"key":"1.2.2"},{"backlink":"concepts/index.html#fig1.2.3","level":"1.2","list_caption":"Figure: kubernetes整体架构示意图","alt":"kubernetes整体架构示意图","nro":3,"url":"../images/kubernetes-whole-arch.png","index":3,"caption_template":"图片 - _CAPTION_","label":"kubernetes整体架构示意图","attributes":{},"skip":false,"key":"1.2.3"},{"backlink":"concepts/index.html#fig1.2.4","level":"1.2","list_caption":"Figure: Kubernetes master架构示意图","alt":"Kubernetes master架构示意图","nro":4,"url":"../images/kubernetes-master-arch.png","index":4,"caption_template":"图片 - _CAPTION_","label":"Kubernetes master架构示意图","attr
2017-08-21 17:44:43 +08:00
});
< / script >
< / div >
< script src = "../gitbook/gitbook.js" > < / script >
< script src = "../gitbook/theme.js" > < / script >
< script src = "../gitbook/gitbook-plugin-github/plugin.js" > < / script >
< script src = "../gitbook/gitbook-plugin-splitter/splitter.js" > < / script >
< script src = "../gitbook/gitbook-plugin-page-toc-button/plugin.js" > < / script >
< script src = "../gitbook/gitbook-plugin-editlink/plugin.js" > < / script >
2017-09-19 21:38:03 +08:00
< script src = "../gitbook/gitbook-plugin-back-to-top-button/plugin.js" > < / script >
2017-08-21 17:44:43 +08:00
< script src = "../gitbook/gitbook-plugin-search-plus/jquery.mark.min.js" > < / script >
< script src = "../gitbook/gitbook-plugin-search-plus/search.js" > < / script >
2017-10-09 15:28:05 +08:00
< script src = "../gitbook/gitbook-plugin-github-buttons/plugin.js" > < / script >
2017-10-11 18:13:13 +08:00
< script src = "../gitbook/gitbook-plugin-3-ba/plugin.js" > < / script >
2017-08-21 17:44:43 +08:00
< script src = "../gitbook/gitbook-plugin-sharing/buttons.js" > < / script >
< script src = "../gitbook/gitbook-plugin-fontsettings/fontsettings.js" > < / script >
< / body >
< / html >
