Update some docs in /cn/docs (#4842)

* Add docs in Chinese Add configure-redis-using-configmap.md in Chinese * Modify docs in Chinese Modify imperative-object-management-command.md in Chinese
2017-09-02 05:54:40 +08:00
parent d15b138d2e
commit 34c58235fd
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+---
+approvers:
+- eparis
+- pmorie
+title: 使用ConfigMap来配置Redis
+---
+
+{% capture overview %}
+
+这篇文档基于[在Pods中使用ConfigMap数据](/docs/tasks/configure-pod-container/configure-pod-configmap/) 和 [使用ConfigMap来配置Containers](/docs/tasks/configure-pod-container/configmap/) 两个任务，提供了一个使用ConfigMap来配置Redis的真实案例。
+
+{% endcapture %}
+
+{% capture objectives %}
+
+* 创建一个ConfigMap。
+* 使用ConfigMap来配置pod参数。
+* 创建pod。
+* 验证是否配置成功。
+
+{% endcapture %}
+
+{% capture prerequisites %}
+
+* {% include task-tutorial-prereqs.md %}
+* 理解[在Pods中使用ConfigMap数据](/docs/tasks/configure-pod-container/configure-pod-configmap/)。
+* 理解[使用ConfigMap来配置Containers](/docs/tasks/configure-pod-container/configmap/)。
+
+{% endcapture %}
+
+{% capture lessoncontent %}
+
+
+## 真实世界的案例：使用ConfigMap来配置Redis
+
+按照下面的步骤，您可以使用ConfigMap中的数据来配置Redis缓存。
+
+1. 根据`docs/user-guide/configmap/redis/redis-config`来创建一个ConfigMap：
+
+   ```shell
+   kubectl create configmap example-redis-config --from-file=docs/user-guide/configmap/redis/redis-config
+
+   kubectl get configmap example-redis-config -o yaml
+   ```
+
+   ```yaml
+   apiVersion: v1
+   data:
+     redis-config: |
+       maxmemory 2mb
+       maxmemory-policy allkeys-lru
+   kind: ConfigMap
+   metadata:
+     creationTimestamp: 2016-03-30T18:14:41Z
+     name: example-redis-config
+     namespace: default
+     resourceVersion: "24686"
+     selfLink: /api/v1/namespaces/default/configmaps/example-redis-config
+     uid: 460a2b6e-f6a3-11e5-8ae5-42010af00002
+   ```
+
+1. 使用ConfigMap来配置pod参数：
+
+   ```yaml
+   apiVersion: v1
+   kind: Pod
+   metadata:
+     name: redis
+   spec:
+     containers:
+     - name: redis
+       image: kubernetes/redis:v1
+       env:
+       - name: MASTER
+         value: "true"
+       ports:
+       - containerPort: 6379
+       resources:
+         limits:
+           cpu: "0.1"
+       volumeMounts:
+       - mountPath: /redis-master-data
+         name: data
+       - mountPath: /redis-master
+         name: config
+     volumes:
+       - name: data
+         emptyDir: {}
+       - name: config
+         configMap:
+           name: example-redis-config
+           items:
+           - key: redis-config
+             path: redis.conf
+   ```
+1. 创建pod:
+
+   ```shell
+   kubectl create -f docs/user-guide/configmap/redis/redis-pod.yaml
+   ```
+
+   In the example, the config volume is mounted at `/redis-master`.
+   It uses `path` to add the `redis-config` key to a file named `redis.conf`.
+   The file path for the redis config, therefore, is `/redis-master/redis.conf`.
+   This is where the image will look for the config file for the redis master.
+
+1. 使用`kubectl exec`命令进入pod后运行 `redis-cli` 工具来验证配置是否成功：
+
+   ```shell
+   kubectl exec -it redis redis-cli
+   127.0.0.1:6379> CONFIG GET maxmemory
+   1) "maxmemory"
+   2) "2097152"
+   127.0.0.1:6379> CONFIG GET maxmemory-policy
+   1) "maxmemory-policy"
+   2) "allkeys-lru"
+   ```
+
+{% endcapture %}
+
+{% capture whatsnext %}
+
+* 了解关于[ConfigMaps](/docs/tasks/configure-pod-container/configmap/)的更多知识。
+* 参见[在Pods中使用ConfigMap数据](/docs/tasks/configure-pod-container/configure-pod-configmap/)。
+
+{% endcapture %}
+
+{% include templates/tutorial.md %}