516 lines
23 KiB
Markdown
516 lines
23 KiB
Markdown
---
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title: 部署和访问 Kubernetes 仪表板(Dashboard)
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content_type: concept
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weight: 10
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card:
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name: tasks
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weight: 30
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title: 使用 Web 界面 Dashboard
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description: 部署并访问 Web 界面(Kubernetes 仪表板)。
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---
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<!--
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reviewers:
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- floreks
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- maciaszczykm
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- shu-mutou
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- mikedanese
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title: Deploy and Access the Kubernetes Dashboard
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description: >-
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Deploy the web UI (Kubernetes Dashboard) and access it.
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content_type: concept
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weight: 10
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card:
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name: tasks
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weight: 30
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title: Use the Web UI Dashboard
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-->
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<!-- overview -->
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<!--
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Dashboard is a web-based Kubernetes user interface.
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You can use Dashboard to deploy containerized applications to a Kubernetes cluster,
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troubleshoot your containerized application, and manage the cluster resources.
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You can use Dashboard to get an overview of applications running on your cluster,
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as well as for creating or modifying individual Kubernetes resources
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(such as Deployments, Jobs, DaemonSets, etc).
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For example, you can scale a Deployment, initiate a rolling update, restart a pod
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or deploy new applications using a deploy wizard.
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Dashboard also provides information on the state of Kubernetes resources in your cluster and on any errors that may have occurred.
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-->
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Dashboard 是基于网页的 Kubernetes 用户界面。
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你可以使用 Dashboard 将容器应用部署到 Kubernetes 集群中,也可以对容器应用排错,还能管理集群资源。
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你可以使用 Dashboard 获取运行在集群中的应用的概览信息,也可以创建或者修改 Kubernetes 资源
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(如 Deployment,Job,DaemonSet 等等)。
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例如,你可以对 Deployment 实现弹性伸缩、发起滚动升级、重启 Pod 或者使用向导创建新的应用。
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Dashboard 同时展示了 Kubernetes 集群中的资源状态信息和所有报错信息。
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<!-- body -->
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<!--
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## Deploying the Dashboard UI
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The Dashboard UI is not deployed by default. To deploy it, run the following command:
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-->
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## 部署 Dashboard UI {#deploying-the-dashboard-ui}
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默认情况下不会部署 Dashboard。可以通过以下命令部署:
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```
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kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.7.0/aio/deploy/recommended.yaml
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```
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<!--
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## Accessing the Dashboard UI
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To protect your cluster data, Dashboard deploys with a minimal RBAC configuration by default.
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Currently, Dashboard only supports logging in with a Bearer Token.
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To create a token for this demo, you can follow our guide on
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[creating a sample user](https://github.com/kubernetes/dashboard/blob/master/docs/user/access-control/creating-sample-user.md).
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-->
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## 访问 Dashboard 用户界面 {#accessing-the-dashboard-ui}
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为了保护你的集群数据,默认情况下,Dashboard 会使用最少的 RBAC 配置进行部署。
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当前,Dashboard 仅支持使用 Bearer 令牌登录。
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要为此样本演示创建令牌,你可以按照
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[创建示例用户](https://github.com/kubernetes/dashboard/blob/master/docs/user/access-control/creating-sample-user.md)
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上的指南进行操作。
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{{< warning >}}
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<!--
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The sample user created in the tutorial will have administrative privileges and is for educational purposes only.
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-->
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在教程中创建的样本用户将具有管理特权,并且仅用于教育目的。
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{{< /warning >}}
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<!--
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### Command line proxy
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You can enable access to the Dashboard using the `kubectl` command-line tool,
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by running the following command:
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-->
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### 命令行代理 {#command-line-proxy}
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你可以使用 `kubectl` 命令行工具来启用 Dashboard 访问,命令如下:
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```
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kubectl proxy
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```
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<!--
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Kubectl will make Dashboard available at [http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/](http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/).
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-->
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kubectl 会使得 Dashboard 可以通过 [http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/](http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/) 访问。
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<!--
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The UI can _only_ be accessed from the machine where the command is executed. See `kubectl proxy --help` for more options.
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-->
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UI _只能_ 通过执行这条命令的机器进行访问。更多选项参见 `kubectl proxy --help`。
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{{< note >}}
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<!--
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The kubeconfig authentication method does **not** support external identity providers
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or X.509 certificate-based authentication.
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-->
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Kubeconfig 身份验证方法**不**支持外部身份提供程序或基于 x509 证书的身份验证。
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{{< /note >}}
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<!--
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## Welcome view
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-->
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## 欢迎界面 {#welcome-view}
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<!--
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When you access Dashboard on an empty cluster, you'll see the welcome page.
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This page contains a link to this document as well as a button to deploy your first application.
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In addition, you can view which system applications are running by default in the `kube-system`
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[namespace](/docs/tasks/administer-cluster/namespaces/) of your cluster, for example the Dashboard itself.
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-->
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当访问空集群的 Dashboard 时,你会看到欢迎界面。
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页面包含一个指向此文档的链接,以及一个用于部署第一个应用程序的按钮。
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此外,你可以看到在默认情况下有哪些默认系统应用运行在 `kube-system`
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[名字空间](/zh-cn/docs/tasks/administer-cluster/namespaces/) 中,比如 Dashboard 自己。
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<!--
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-->
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<!--
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## Deploying containerized applications
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Dashboard lets you create and deploy a containerized application as a Deployment and optional Service with a simple wizard.
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You can either manually specify application details, or upload a YAML or JSON _manifest_ file containing application configuration.
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-->
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## 部署容器化应用 {#deploying-containerized-applications}
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通过一个简单的部署向导,你可以使用 Dashboard 将容器化应用作为一个 Deployment 和可选的
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Service 进行创建和部署。你可以手工指定应用的详细配置,或者上传一个包含应用配置的 YAML
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或 JSON _清单_文件。
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<!--
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Click the **CREATE** button in the upper right corner of any page to begin.
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-->
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点击任何页面右上角的 **CREATE** 按钮以开始。
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<!--
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### Specifying application details
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The deploy wizard expects that you provide the following information:
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-->
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### 指定应用的详细配置 {#specifying-application-details}
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部署向导需要你提供以下信息:
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<!--
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- **App name** (mandatory): Name for your application.
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A [label](/docs/concepts/overview/working-with-objects/labels/) with the name will be
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added to the Deployment and Service, if any, that will be deployed.
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-->
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- **应用名称**(必填):应用的名称。内容为 `应用名称` 的
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[标签](/zh-cn/docs/concepts/overview/working-with-objects/labels/)
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会被添加到任何将被部署的 Deployment 和 Service。
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<!--
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The application name must be unique within the selected Kubernetes [namespace](/docs/tasks/administer-cluster/namespaces/).
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It must start with a lowercase character, and end with a lowercase character or a number,
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and contain only lowercase letters, numbers and dashes (-). It is limited to 24 characters.
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Leading and trailing spaces are ignored.
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-->
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在选定的 Kubernetes [名字空间](/zh-cn/docs/tasks/administer-cluster/namespaces/) 中,
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应用名称必须唯一。必须由小写字母开头,以数字或者小写字母结尾,
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并且只含有小写字母、数字和中划线(-)。小于等于24个字符。开头和结尾的空格会被忽略。
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<!--
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- **Container image** (mandatory):
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The URL of a public Docker [container image](/docs/concepts/containers/images/) on any registry,
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or a private image (commonly hosted on the Google Container Registry or Docker Hub).
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The container image specification must end with a colon.
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-->
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- **容器镜像**(必填):公共镜像仓库上的 Docker
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[容器镜像](/zh-cn/docs/concepts/containers/images/) 或者私有镜像仓库
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(通常是 Google Container Registry 或者 Docker Hub)的 URL。容器镜像参数说明必须以冒号结尾。
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<!--
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- **Number of pods** (mandatory): The target number of Pods you want your application to be deployed in.
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The value must be a positive integer.
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-->
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- **Pod 的数量**(必填):你希望应用程序部署的 Pod 的数量。值必须为正整数。
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<!--
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A [Deployment](/docs/concepts/workloads/controllers/deployment/) will be created to
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maintain the desired number of Pods across your cluster.
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-->
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系统会创建一个 [Deployment](/zh-cn/docs/concepts/workloads/controllers/deployment/)
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以保证集群中运行期望的 Pod 数量。
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<!--
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- **Service** (optional): For some parts of your application (e.g. frontends) you may want to expose a
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[Service](/docs/concepts/services-networking/service/) onto an external,
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maybe public IP address outside of your cluster (external Service).
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-->
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- **服务**(可选):对于部分应用(比如前端),你可能想对外暴露一个
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[Service](/zh-cn/docs/concepts/services-networking/service/),这个 Service
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可能用的是集群之外的公网 IP 地址(外部 Service)。
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{{< note >}}
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<!--
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For external Services, you may need to open up one or more ports to do so.
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-->
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对于外部服务,你可能需要开放一个或多个端口才行。
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{{< /note >}}
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<!--
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Other Services that are only visible from inside the cluster are called internal Services.
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-->
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其它只能对集群内部可见的 Service 称为内部 Service。
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<!--
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Irrespective of the Service type, if you choose to create a Service and your container listens
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on a port (incoming), you need to specify two ports.
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The Service will be created mapping the port (incoming) to the target port seen by the container.
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This Service will route to your deployed Pods. Supported protocols are TCP and UDP.
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The internal DNS name for this Service will be the value you specified as application name above.
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-->
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不管哪种 Service 类型,如果你选择创建一个 Service,而且容器在一个端口上开启了监听(入向的),
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那么你需要定义两个端口。创建的 Service 会把(入向的)端口映射到容器可见的目标端口。
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该 Service 会把流量路由到你部署的 Pod。支持 TCP 协议和 UDP 协议。
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这个 Service 的内部 DNS 解析名就是之前你定义的应用名称的值。
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<!--
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If needed, you can expand the **Advanced options** section where you can specify more settings:
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-->
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如果需要,你可以打开 **Advanced Options** 部分,这里你可以定义更多设置:
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<!--
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- **Description**: The text you enter here will be added as an
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[annotation](/docs/concepts/overview/working-with-objects/annotations/)
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to the Deployment and displayed in the application's details.
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-->
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- **描述**:这里你输入的文本会作为一个
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[注解](/zh-cn/docs/concepts/overview/working-with-objects/annotations/)
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添加到 Deployment,并显示在应用的详细信息中。
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<!--
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- **Labels**: Default [labels](/docs/concepts/overview/working-with-objects/labels/) to be used
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for your application are application name and version.
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You can specify additional labels to be applied to the Deployment, Service (if any), and Pods,
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such as release, environment, tier, partition, and release track.
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-->
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- **标签**:应用默认使用的
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[标签](/zh-cn/docs/concepts/overview/working-with-objects/labels/) 是应用名称和版本。
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你可以为 Deployment、Service(如果有)定义额外的标签,比如 release(版本)、
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environment(环境)、tier(层级)、partition(分区) 和 release track(版本跟踪)。
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<!-- Example: -->
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例子:
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```conf
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release=1.0
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tier=frontend
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environment=pod
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track=stable
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```
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<!--
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- **Namespace**: Kubernetes supports multiple virtual clusters backed by the same physical cluster.
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These virtual clusters are called [namespaces](/docs/tasks/administer-cluster/namespaces/).
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They let you partition resources into logically named groups.
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-->
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- **名字空间**:Kubernetes 支持多个虚拟集群依附于同一个物理集群。
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这些虚拟集群被称为
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[名字空间](/zh-cn/docs/tasks/administer-cluster/namespaces/),
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可以让你将资源划分为逻辑命名的组。
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<!--
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Dashboard offers all available namespaces in a dropdown list, and allows you to create a new namespace.
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The namespace name may contain a maximum of 63 alphanumeric characters and dashes (-) but can not contain capital letters.
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-->
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Dashboard 通过下拉菜单提供所有可用的名字空间,并允许你创建新的名字空间。
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名字空间的名称最长可以包含 63 个字母或数字和中横线(-),但是不能包含大写字母。
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<!--
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Namespace names should not consist of only numbers.
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If the name is set as a number, such as 10, the pod will be put in the default namespace.
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-->
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名字空间的名称不能只包含数字。如果名字被设置成一个数字,比如 10,pod 就
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<!--
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In case the creation of the namespace is successful, it is selected by default.
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If the creation fails, the first namespace is selected.
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-->
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在名字空间创建成功的情况下,默认会使用新创建的名字空间。如果创建失败,那么第一个名字空间会被选中。
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<!--
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- **Image Pull Secret**:
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In case the specified Docker container image is private, it may require
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[pull secret](/docs/concepts/configuration/secret/) credentials.
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-->
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- **镜像拉取 Secret**:如果要使用私有的 Docker 容器镜像,需要拉取
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[Secret](/zh-cn/docs/concepts/configuration/secret/) 凭证。
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<!--
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Dashboard offers all available secrets in a dropdown list, and allows you to create a new secret.
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The secret name must follow the DNS domain name syntax, for example `new.image-pull.secret`.
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The content of a secret must be base64-encoded and specified in a
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[`.dockercfg`](/docs/concepts/containers/images/#specifying-imagepullsecrets-on-a-pod) file.
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The secret name may consist of a maximum of 253 characters.
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-->
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Dashboard 通过下拉菜单提供所有可用的 Secret,并允许你创建新的 Secret。
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Secret 名称必须遵循 DNS 域名语法,比如 `new.image-pull.secret`。
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Secret 的内容必须是 base64 编码的,并且在一个
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[`.dockercfg`](/zh-cn/docs/concepts/containers/images/#specifying-imagepullsecrets-on-a-pod)
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文件中声明。Secret 名称最大可以包含 253 个字符。
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<!--
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In case the creation of the image pull secret is successful, it is selected by default. If the creation fails, no secret is applied.
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-->
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在镜像拉取 Secret 创建成功的情况下,默认会使用新创建的 Secret。
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如果创建失败,则不会使用任何 Secret。
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<!--
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- **CPU requirement (cores)** and **Memory requirement (MiB)**:
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You can specify the minimum [resource limits](/docs/tasks/administer-cluster/manage-resources/memory-default-namespace/)
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for the container. By default, Pods run with unbounded CPU and memory limits.
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-->
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- **CPU 需求(核数)** 和 **内存需求(MiB)**:你可以为容器定义最小的
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[资源限制](/zh-cn/docs/tasks/administer-cluster/manage-resources/memory-default-namespace/)。
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默认情况下,Pod 没有 CPU 和内存限制。
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<!--
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- **Run command** and **Run command arguments**:
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By default, your containers run the specified Docker image's default
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[entrypoint command](/docs/tasks/inject-data-application/define-command-argument-container/).
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You can use the command options and arguments to override the default.
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-->
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- **运行命令**和**运行命令参数**:默认情况下,你的容器会运行 Docker 镜像的默认
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[入口命令](/zh-cn/docs/tasks/inject-data-application/define-command-argument-container/)。
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你可以使用 command 选项覆盖默认值。
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<!--
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- **Run as privileged**: This setting determines whether processes in
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[privileged containers](/docs/concepts/workloads/pods/#privileged-mode-for-containers)
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are equivalent to processes running as root on the host.
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Privileged containers can make use of capabilities like manipulating the network stack and accessing devices.
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-->
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- **以特权模式运行**:这个设置决定了在
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[特权容器](/zh-cn/docs/concepts/workloads/pods/#privileged-mode-for-containers)
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中运行的进程是否像主机中使用 root 运行的进程一样。
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特权容器可以使用诸如操纵网络堆栈和访问设备的功能。
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<!--
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- **Environment variables**: Kubernetes exposes Services through
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[environment variables](/docs/tasks/inject-data-application/environment-variable-expose-pod-information/).
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You can compose environment variable or pass arguments to your commands using the values of environment variables.
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They can be used in applications to find a Service.
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Values can reference other variables using the `$(VAR_NAME)` syntax.
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-->
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- **环境变量**:Kubernetes 通过
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[环境变量](/zh-cn/docs/tasks/inject-data-application/environment-variable-expose-pod-information/)
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暴露 Service。你可以构建环境变量,或者将环境变量的值作为参数传递给你的命令。
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它们可以被应用用于查找 Service。值可以通过 `$(VAR_NAME)` 语法关联其他变量。
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<!--
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### Uploading a YAML or JSON file
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Kubernetes supports declarative configuration.
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In this style, all configuration is stored in manifests (YAML or JSON configuration files).
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The manifests use Kubernetes [API](/docs/concepts/overview/kubernetes-api/) resource schemas.
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-->
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### 上传 YAML 或者 JSON 文件 {#uploading-a-yaml-or-json-file}
|
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Kubernetes 支持声明式配置。所有的配置都存储在清单文件
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(YAML 或者 JSON 配置文件)中。这些
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清单使用 Kubernetes [API](/zh-cn/docs/concepts/overview/kubernetes-api/) 定义的资源模式。
|
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|
||
<!--
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||
As an alternative to specifying application details in the deploy wizard,
|
||
you can define your application in one or more manifests, and upload the files using Dashboard.
|
||
-->
|
||
作为一种替代在部署向导中指定应用详情的方式,你可以在一个或多个清单文件中定义应用,并且使用
|
||
Dashboard 上传文件。
|
||
|
||
<!--
|
||
## Using Dashboard
|
||
|
||
Following sections describe views of the Kubernetes Dashboard UI; what they provide and how can they be used.
|
||
-->
|
||
## 使用 Dashboard {#using-dashboard}
|
||
|
||
以下各节描述了 Kubernetes Dashboard UI 视图;包括它们提供的内容,以及怎么使用它们。
|
||
|
||
<!--
|
||
### Navigation
|
||
|
||
When there are Kubernetes objects defined in the cluster, Dashboard shows them in the initial view.
|
||
By default only objects from the _default_ namespace are shown and
|
||
this can be changed using the namespace selector located in the navigation menu.
|
||
-->
|
||
### 导航 {#navigation}
|
||
|
||
当在集群中定义 Kubernetes 对象时,Dashboard 会在初始视图中显示它们。
|
||
默认情况下只会显示 _默认_ 名字空间中的对象,可以通过更改导航栏菜单中的名字空间筛选器进行改变。
|
||
|
||
<!--
|
||
Dashboard shows most Kubernetes object kinds and groups them in a few menu categories.
|
||
-->
|
||
Dashboard 展示大部分 Kubernetes 对象,并将它们分组放在几个菜单类别中。
|
||
|
||
<!--
|
||
#### Admin overview
|
||
|
||
For cluster and namespace administrators, Dashboard lists Nodes, Namespaces and PersistentVolumes and has detail views for them.
|
||
Node list view contains CPU and memory usage metrics aggregated across all Nodes.
|
||
The details view shows the metrics for a Node, its specification, status,
|
||
allocated resources, events and pods running on the node.
|
||
-->
|
||
#### 管理概述 {#admin-overview}
|
||
|
||
集群和名字空间管理的视图,Dashboard 会列出节点、名字空间和持久卷,并且有它们的详细视图。
|
||
节点列表视图包含从所有节点聚合的 CPU 和内存使用的度量值。
|
||
详细信息视图显示了一个节点的度量值,它的规格、状态、分配的资源、事件和这个节点上运行的 Pod。
|
||
|
||
<!--
|
||
#### Workloads
|
||
|
||
Shows all applications running in the selected namespace.
|
||
The view lists applications by workload kind (for example: Deployments, ReplicaSets, StatefulSets).
|
||
Each workload kind can be viewed separately.
|
||
The lists summarize actionable information about the workloads,
|
||
such as the number of ready pods for a ReplicaSet or current memory usage for a Pod.
|
||
-->
|
||
#### 负载 {#workloads}
|
||
|
||
显示选中的名字空间中所有运行的应用。
|
||
视图按照负载类型(例如:Deployment、ReplicaSet、StatefulSet)罗列应用,并且每种负载都可以单独查看。
|
||
列表总结了关于负载的可执行信息,比如一个 ReplicaSet 的就绪状态的 Pod 数量,或者目前一个 Pod 的内存用量。
|
||
|
||
<!--
|
||
Detail views for workloads show status and specification information and
|
||
surface relationships between objects.
|
||
For example, Pods that ReplicaSet is controlling or new ReplicaSets and HorizontalPodAutoscalers for Deployments.
|
||
-->
|
||
工作负载的详情视图展示了对象的状态、详细信息和相互关系。
|
||
例如,ReplicaSet 所控制的 Pod,或者 Deployment 所关联的新 ReplicaSet 和
|
||
HorizontalPodAutoscalers。
|
||
|
||
<!--
|
||
#### Services
|
||
|
||
Shows Kubernetes resources that allow for exposing services to external world and
|
||
discovering them within a cluster.
|
||
For that reason, Service and Ingress views show Pods targeted by them,
|
||
internal endpoints for cluster connections and external endpoints for external users.
|
||
-->
|
||
#### 服务 {#services}
|
||
|
||
展示允许暴露给外网服务和允许集群内部发现的 Kubernetes 资源。
|
||
因此,Service 和 Ingress 视图展示他们关联的 Pod、给集群连接使用的内部端点和给外部用户使用的外部端点。
|
||
|
||
<!--
|
||
#### Storage
|
||
|
||
Storage view shows PersistentVolumeClaim resources which are used by applications for storing data.
|
||
-->
|
||
#### 存储 {#storage}
|
||
|
||
存储视图展示持久卷申领(PVC)资源,这些资源被应用程序用来存储数据。
|
||
|
||
<!--
|
||
#### ConfigMaps and Secrets {#config-maps-and-secrets}
|
||
|
||
Shows all Kubernetes resources that are used for live configuration of applications running in clusters.
|
||
The view allows for editing and managing config objects and displays secrets hidden by default.
|
||
-->
|
||
#### ConfigMap 和 Secret {#config-maps-and-secrets}
|
||
|
||
展示的所有 Kubernetes 资源是在集群中运行的应用程序的实时配置。
|
||
通过这个视图可以编辑和管理配置对象,并显示那些默认隐藏的 Secret。
|
||
|
||
<!--
|
||
#### Logs viewer
|
||
|
||
Pod lists and detail pages link to a logs viewer that is built into Dashboard.
|
||
The viewer allows for drilling down logs from containers belonging to a single Pod.
|
||
-->
|
||
#### 日志查看器 {#logs-viewer}
|
||
|
||
Pod 列表和详细信息页面可以链接到 Dashboard 内置的日志查看器。
|
||
查看器可以深入查看属于同一个 Pod 的不同容器的日志。
|
||
|
||
<!--
|
||

|
||
-->
|
||

|
||
|
||
## {{% heading "whatsnext" %}}
|
||
|
||
<!--
|
||
For more information, see the
|
||
[Kubernetes Dashboard project page](https://github.com/kubernetes/dashboard).
|
||
-->
|
||
更多信息,参见 [Kubernetes Dashboard 项目页面](https://github.com/kubernetes/dashboard).
|