zh-trans: add /docs/tasks/configure-pod-container/configure-pod-initialization.md (#11886)

zh-trans: add /docs/tasks/configure-pod-container/configure-pod-initialization.md
2018-12-26 21:09:59 +08:00
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+---
+title: 配置 Pod 初始化
+content_template: templates/task
+weight: 130
+---
+
+<!--
+---
+title: Configure Pod Initialization
+content_template: templates/task
+weight: 130
+---
+-->
+
+{{% capture overview %}}
+<!--
+This page shows how to use an Init Container to initialize a Pod before an
+application Container runs.
+-->
+本文介绍在应用容器运行前，怎样利用 Init 容器初始化 Pod。
+{{% /capture %}}
+
+{{% capture prerequisites %}}
+
+{{< include "task-tutorial-prereqs.md" >}} {{< version-check >}}
+
+{{% /capture %}}
+
+{{% capture steps %}}
+
+<!--
+## Create a Pod that has an Init Container
+
+In this exercise you create a Pod that has one application Container and one
+Init Container. The init container runs to completion before the application
+container starts.
+
+Here is the configuration file for the Pod:
+-->
+
+## 创建一个包含 Init 容器的 Pod
+
+本例中您将创建一个包含一个应用容器和一个 Init 容器的 Pod。Init 容器在应用容器启动前运行完成。
+
+下面是 Pod 的配置文件：
+
+{{< codenew file="pods/init-containers.yaml" >}}
+
+<!--
+In the configuration file, you can see that the Pod has a Volume that the init
+container and the application container share.
+
+The init container mounts the
+shared Volume at `/work-dir`, and the application container mounts the shared
+Volume at `/usr/share/nginx/html`. The init container runs the following command
+and then terminates:
+-->
+
+配置文件中，您可以看到应用容器和 Init 容器共享了一个卷。
+
+Init 容器将共享卷挂载到了 `/work-dir` 目录，应用容器将共享卷挂载到了 `/usr/share/nginx/html` 目录。
+Init 容器执行完下面的命令就终止：
+
+    wget -O /work-dir/index.html http://kubernetes.io
+
+<!--
+Notice that the init container writes the `index.html` file in the root directory
+of the nginx server.
+
+Create the Pod:
+-->
+
+请注意 Init 容器在 nginx 服务器的根目录写入 `index.html`。
+
+创建 Pod：
+
+    kubectl create -f https://k8s.io/examples/pods/init-containers.yaml
+
+<!--
+Verify that the nginx container is running:
+-->
+
+检查 nginx 容器运行正常：
+
+    kubectl get pod init-demo
+
+<!--
+The output shows that the nginx container is running:
+-->
+
+结果表明 nginx 容器运行正常：
+
+    NAME        READY     STATUS    RESTARTS   AGE
+    init-demo   1/1       Running   0          1m
+
+<!--
+Get a shell into the nginx container running in the init-demo Pod:
+-->
+
+通过 shell 进入 init-demo Pod 中的 nginx 容器：
+
+    kubectl exec -it init-demo -- /bin/bash
+
+<!--
+In your shell, send a GET request to the nginx server:
+-->
+
+在 shell 中，发送个 GET 请求到 nginx 服务器：
+
+    root@nginx:~# apt-get update
+    root@nginx:~# apt-get install curl
+    root@nginx:~# curl localhost
+
+<!--
+The output shows that nginx is serving the web page that was written by the init container:
+-->
+
+结果表明 nginx 正在为 Init 容器编写的 web 页面服务：
+
+    <!Doctype html>
+    <html id="home">
+
+    <head>
+    ...
+    "url": "http://kubernetes.io/"}</script>
+    </head>
+    <body>
+      ...
+      <p>Kubernetes is open source giving you the freedom to take advantage ...</p>
+      ...
+
+{{% /capture %}}
+
+{{% capture whatsnext %}}
+
+<!--
+* Learn more about
+[communicating between Containers running in the same Pod](/docs/tasks/access-application-cluster/communicate-containers-same-pod-shared-volume/).
+* Learn more about [Init Containers](/docs/concepts/workloads/pods/init-containers/).
+* Learn more about [Volumes](/docs/concepts/storage/volumes/).
+* Learn more about [Debugging Init Containers](/docs/tasks/debug-application-cluster/debug-init-containers/)
+-->
+
+* 进一步了解 [相同 Pod 中的容器间的通信](/docs/tasks/access-application-cluster/communicate-containers-same-pod-shared-volume/)。
+* 进一步了解 [Init 容器](/docs/concepts/workloads/pods/init-containers/)。
+* 进一步了解 [卷](/docs/concepts/storage/volumes/)。
+* 进一步了解 [Init 容器排错](/docs/tasks/debug-application-cluster/debug-init-containers/)。
+
+{{% /capture %}}
+
+