【Kubernetes实战】（二十二）数据存储 Secret

深碍√TFBOYSˉ_ 2024-03-24 11:46 9阅读 0赞

**目录**

一、环境安装

二、Secret介绍

三、Secret使用

1 数据准备

2 创建Secret

3 创建Pod

4 查看Secret

5 查看 Pod 中内容

--------------------

## 一、环境安装 ##

参考

[【Kubernetes实战】（四）MiniKube方式部署][Kubernetes_MiniKube]

[【Kubernetes实战】（五）KubeAdm方式部署][Kubernetes_KubeAdm]

[【Kubernetes实战】（六）Kind方式部署][Kubernetes_Kind]

## 二、Secret介绍 ##

和`ConfigMap`非常类似，主要用于存储敏感信息，例如密码、秘钥、证书等。

动态更新（定时更新），密文存储（`describe`不能看到信息，但在`Pod`容器中会还原成明文）

## 三、Secret使用 ##

### 1 数据准备 ###

echo -n 'admin' | base64
    echo -n '123456' | base64

![b8870ba686f54cc2a199e20055f932da.png][]

vim secret.yml

apiVersion: v1
    kind: Secret
    metadata:
      name: secret
      namespace: dev
    type: Opaque
    data:
      username: YWRtaW4=
      password: MTIzNDU2

创建`pod-secret.yml`，挂载到`Secret`

`vim pod-secret.yml`

apiVersion: v1
    kind: Pod
    metadata:
      name: pod-secret
      namespace: dev
    spec:
      containers:
      - name: nginx
        image: nginx:1.17.1
        volumeMounts: # 将 Secret 挂载到目录
        - name: config
          mountPath: /secret/config
      volumes:
      - name: config
        secret:
          secretName: secret

### 2 创建Secret ###

kubectl create -f secret.yml

### ![82083d0bfc2f448bb3c7cc03fe7efba6.png][] ###

### 3 创建Pod ###

kubectl create -f  pod-secret.yml

![eacaec9cba3a475a9e7726e15a683461.png][]

### 4 查看Secret ###

kubectl describe secret secret -n dev

![c448383876a348eeb4b58cc43f10d309.png][]

### 5 查看 Pod 中内容 ###

进入容器：

kubectl exec -it pod-secret -n dev -- /bin/sh
    
    
    # ls /secret/config/
    password  username
    # more /secret/config/username
    admin
    # more /secret/config/password
    123456
    #

![f6ac8a430c5a4d55935d2a3d6f7f1313.png][]

[Kubernetes_MiniKube]: https://blog.csdn.net/forest_long/article/details/129665163
[Kubernetes_KubeAdm]: https://blog.csdn.net/forest_long/article/details/129665224
[Kubernetes_Kind]: https://blog.csdn.net/forest_long/article/details/129665231
[b8870ba686f54cc2a199e20055f932da.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/24/bf6466348a0841558312ca3fdd8f1169.png
[82083d0bfc2f448bb3c7cc03fe7efba6.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/24/4a7cc9b3c9b94dc99cab65a02d5dd819.png
[eacaec9cba3a475a9e7726e15a683461.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/24/b6ec1eb4b34b46e9b3f9833d6b96b928.png
[c448383876a348eeb4b58cc43f10d309.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/24/96e3cfb5ef6f49239daca6cf78402b5d.png
[f6ac8a430c5a4d55935d2a3d6f7f1313.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/24/8200e868abda413b9305af9fe99706c8.png