docs: update docker/install

docker/install.md

@@ -2,7 +2,7 @@
 title: docker的安装
 description: docker的安装
 published: true
-date: 2021-08-02T08:28:31.729Z
+date: 2021-09-02T06:20:04.827Z
 tags: docker
 editor: markdown
 dateCreated: 2021-08-02T07:22:52.894Z
@@ -32,27 +32,35 @@ $ sudo yum remove docker \
                   docker-logrotate \
                   docker-engine
 ```
+或者查看已经安装的docker
+```bash
+$ yum list installed |grep docker
+```
 
 ##### 安装
+[官方安装传送门](https://docs.docker.com/engine/install/centos/)
+###### 下载依赖
 
-###### 所需软件包
+[选择对应CentOS版本](https://download.docker.com/linux/centos/)
 
+下载stable版本的两个文件，这里是CentOS7.5
+- docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch.rpm
+- docker-ce-17.03.2.ce-1.el7.centos.x86_64.rpm
+
+###### 执行安装
 ```bash
-$ sudo yum install -y yum-utils device-mapper-persistent-data lvm2
+$ yum install -y docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch.rpm
+
+$ yum install -y docker-ce-17.03.2.ce-1.el7.centos.x86_64.rpm
 ```
-
-###### 设置仓库
-
-阿里云
-
+#### 启动docker
+设置开机启动
 ```bash
-$ sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
+$ systemctl enable docker
 ```
-
-###### 安装 Docker Engine-Community
-
+启动
 ```bash
-$ yum install docker-ce docker-ce-cli containerd.io
+$ systemctl start docker
 ```
 
 #### 删除