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Merge pull request #325 from Jaycean/add_introduction_glossary_page
add Chinese document for introduction glossary page
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---
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title: "Glossary"
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keywords: 'kubernetes, docker, helm, jenkins, istio, prometheus'
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description: ''
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title: "名词解释"
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keywords: 'kubernetes, docker, helm, jenkins, istio, prometheus，名词解释'
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description: 'KubeSphere中常用的词汇释义'
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weight: 1500
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---
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This document describes some frequently used glossaries in KubeSphere as shown below:
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本文档介绍了KubeSphere中一些常用的词汇表，如下所示：
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| Object | Concepts|
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| KubeSphere | Kubernetes 对照释义 |
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|------------|--------------|
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| Project | It is Kubernetes Namespace which provides virtual isolation for the resources in KubeSphere, see [Namespace](https://kubernetes.io/docs/concepts/overview/working-with-objects/namespaces/). |
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| Pod | A Pod is the smallest deployable computing unit that can be created and managed in KubeSphere, see [Pods](https://kubernetes.io/docs/concepts/workloads/pods/pod/). |
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| Deployment | Deployment is used to describe a desired state in a deployment object, and the deployment controller changes the actual state to the desired state at a controlled rate, see [Deployment](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/). |
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| StatefulSet | StatefulSet is the workload object used to manage stateful applications, such as MySQL, see [StatefulSet](https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/). |
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| DaemonSet | A DaemonSet ensures that all (or some) Nodes run a copy of a Pod，such as fluentd or logstash, see [DaemonSet](https://kubernetes.io/docs/concepts/workloads/controllers/daemonset/). |
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| Job | A job creates one or more pods and ensures that a specified number of them successfully terminate, see [Job](https://kubernetes.io/docs/concepts/workloads/controllers/jobs-run-to-completion/). |
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| CronJob | CronJob creates Jobs on a time-based schedule. A CronJob object is like one line of a crontab (cron table) file. It runs a job periodically on a given schedule, see [CronJob](https://kubernetes.io/docs/concepts/workloads/controllers/cron-jobs/). |
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| Service | A Kubernetes service is an abstraction object which defines a logical set of Pods and a policy by which to access them - sometimes called a micro-service. See [Service](https://kubernetes.io/docs/concepts/services-networking/service/). |
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| Route | It is Kubernetes Ingress, an API object that manages external access to the services in a cluster, typically HTTP. Ingress can provide load balancing, SSL termination and name-based virtual hosting, see [Ingress](https://kubernetes.io/docs/concepts/services-networking/ingress/). |
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| Image Registry | Image registry is used to store and distribute Docker Images. It could be public or private, see [Image](https://kubernetes.io/docs/concepts/containers/images/). |
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| Volume | It is Kubernetes Persistent Volume Claim (PVC). Volume is a request for storage by a user, allowing a user to consume abstract storage resources, see [PVC](https://kubernetes.io/docs/concepts/storage/persistent-volumes/). |
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| Storage Classes | A storage class provides a way for administrators to describe the “classes” of storage they offer, see [StorageClass](https://kubernetes.io/docs/concepts/storage/storage-classes/). |
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| Pipeline | Jenkins Pipeline is a suite of plugins which supports implementing and integrating continuous delivery pipelines into Jenkins, see [Pipeline](https://jenkins.io/doc/book/pipeline/). |
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| WorkSpace | Workspace is a logical unit to organize your workload projects, DevOps projects, to manage resource access and share information within your team. It is an isolated working place for your team. |
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| Node | A node is a worker machine that may be a virtual machine or physical machine, depending on the cluster setup. Each node contains the services necessary to run pods and is managed by the master components. see [Node](https://kubernetes.io/docs/concepts/architecture/nodes/). |
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| 项目 | Namespace， 为 Kubernetes 集群提供虚拟的隔离作用，详见 [Namespace](https://kubernetes.io/docs/concepts/overview/working-with-objects/namespaces/)。 |
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| 容器组 | Pod，是 Kubernetes 进行资源调度的最小单位，每个 Pod 中运行着一个或多个密切相关的业务容器，详见 [Pods](https://kubernetes.io/docs/concepts/workloads/pods/pod/)。 |
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| 部署 | Deployments，表示用户对 Kubernetes 集群的一次更新操作，详见 [Deployment](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/)。 |
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| 有状态副本集 | StatefulSet，用于管理有状态的应用程序（例如MySQL），可以保证部署和 scale 的顺序，详见 [StatefulSet](https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/)。 |
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| 守护进程集 | DaemonSet 保证在每个 Node 上都运行一个容器副本，常用来部署一些集群的日志、监控或者其他系统管理应用，例如 fluentd 或 logstash，详见 [DaemonSet](https://kubernetes.io/docs/concepts/workloads/controllers/daemonset/)。 |
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| 任务 | Jobs，在 Kubernetes 中用来控制批处理型任务的资源对象，即仅执行一次的任务，它保证批处理任务的一个或多个 Pod 成功结束。任务管理的 Pod 根据用户的设置将任务成功完成就自动退出了。比如在创建工作负载前，执行任务，将镜像上传至镜像仓库。详见 [Job](https://kubernetes.io/docs/concepts/workloads/controllers/jobs-run-to-completion/)。 |
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| 定时任务 | CronJob，是基于时间的 Job，就类似于 Linux 系统的 crontab，在指定的时间周期运行指定的 Job，在给定时间点只运行一次或周期性地运行。详见 [CronJob](https://kubernetes.io/docs/concepts/workloads/controllers/cron-jobs/)。 |
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| 服务 | Service，一个 Kubernete 服务是一个最小的对象，类似 Pod，和其它的终端对象一样 详见 [Service](https://kubernetes.io/docs/concepts/services-networking/service/)。 |
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| 应用路由 | Ingress，是授权入站连接到达集群服务的规则集合。可通过 Ingress 配置提供外部可访问的 URL、负载均衡、SSL、基于名称的虚拟主机等，详见 [Ingress](https://kubernetes.io/docs/concepts/services-networking/ingress/)。 |
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| 镜像仓库 | Image Registries，镜像仓库用于存放 Docker 镜像，包括公共镜像仓库（如 DockerHub）和私有镜像仓库（如 Harbor），详见 [Image](https://kubernetes.io/docs/concepts/containers/images/)。 |
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| 存储卷 | PersistentVolumeClaim（PVC），满足用户对于持久化存储的需求，用户将 Pod 内需要持久化的数据挂载至存储卷，删除 Pod 后，数据仍保留在存储卷内。Kubesphere 推荐使用动态分配存储，当集群管理员配置存储类型后，集群用户可一键式分配和回收存储卷，无需关心存储底层细节。详见 [PVC](https://kubernetes.io/docs/concepts/storage/persistent-volumes/)。 |
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| 存储类型 | StorageClass，为管理员提供了描述存储 “Class（类）” 的方法，包含 Provisioner、 ReclaimPolicy 和 Parameters 。详见 [StorageClass](https://kubernetes.io/docs/concepts/storage/storage-classes/)。 |
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| 流水线 | Jenkins Pipeline，简单来说就是一套运行在 Jenkins 上的 CI/CD 工作流框架，将原来独立运行于单个或者多个节点的任务连接起来，实现单个任务难以完成的复杂流程编排和可视化的工作。详见 [Pipeline](https://jenkins.io/doc/book/pipeline/)。 |
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| 企业空间 |Workspace，是 KubeSphere 实现多租户模式的基础，是您管理项目、 DevOps 工程和企业成员的基本单位。 |
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| 主机 | Node，Kubernetes 集群中的计算能力由 Node 提供，Kubernetes 集群中的 Node 是所有 Pod 运行所在的工作主机，可以是物理机也可以是虚拟机。详见 [Node](https://kubernetes.io/docs/concepts/architecture/nodes/)。 |
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