## 检查 Docker 是否安装[​](https://amprobe.amuluze.com/doc/views/docker.html#%E6%A3%80%E6%9F%A5-docker-%E6%98%AF%E5%90%A6%E5%AE%89%E8%A3%85)

bash

```
$ docker -v
Docker version 25.0.3, build 4debf41
```

如果输出以上信息，则表示 Docker 已经安装。

## 安装并启动 Docker[​](https://amprobe.amuluze.com/doc/views/docker.html#%E5%AE%89%E8%A3%85%E5%B9%B6%E5%90%AF%E5%8A%A8-docker)

> 如果已经安装 Docker，则跳过该步骤，下面 `Ubuntu 22.04` 安装 Docker 的步骤

### 安装[​](https://amprobe.amuluze.com/doc/views/docker.html#%E5%AE%89%E8%A3%85)

bash

```
$ sudo apt update
```

### 安装依赖[​](https://amprobe.amuluze.com/doc/views/docker.html#%E5%AE%89%E8%A3%85%E4%BE%9D%E8%B5%96)

bash

```
$ sudo apt install apt-transport-https ca-certificates curl software-properties-common gnupg lsb-release
```

**添加 `docker` 的官方 `GPG` 密钥**

bash

```
$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
```

**添加 `docker` 官方库**

bash

```
$ echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
```

**更新 `ubuntu` 源列表**

bash

```
$ sudo apt update
```

**安装最新 `docker-ce`**

bash

```
$ sudo apt install docker-ce docker-ce-cli containerd.io docker-compose-plugin
```

### 检查[​](https://amprobe.amuluze.com/doc/views/docker.html#%E6%A3%80%E6%9F%A5)

bash

```
$ sudo systemctl status docker
● docker.service - Docker Application Container Engine
     Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)
     Active: active (running) since Thu 2024-01-11 21:37:25 CST; 17s ago
TriggeredBy: ● docker.socket
       Docs: https://docs.docker.com
   Main PID: 51116 (dockerd)
      Tasks: 8
     Memory: 25.8M
        CPU: 213ms
     CGroup: /system.slice/docker.service
             └─51116 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock

Jan 11 21:37:24 hecs-398409 systemd[1]: Starting Docker Application Container Engine...
Jan 11 21:37:24 hecs-398409 dockerd[51116]: time="2024-01-11T21:37:24.527450424+08:00" level=info msg="Starting up"
Jan 11 21:37:24 hecs-398409 dockerd[51116]: time="2024-01-11T21:37:24.530213574+08:00" level=info msg="detected 127.0.0.>
Jan 11 21:37:24 hecs-398409 dockerd[51116]: time="2024-01-11T21:37:24.625114442+08:00" level=info msg="Loading container>
Jan 11 21:37:25 hecs-398409 dockerd[51116]: time="2024-01-11T21:37:25.269789956+08:00" level=info msg="Loading container>
Jan 11 21:37:25 hecs-398409 dockerd[51116]: time="2024-01-11T21:37:25.300116824+08:00" level=info msg="Docker daemon" co>
Jan 11 21:37:25 hecs-398409 dockerd[51116]: time="2024-01-11T21:37:25.300207349+08:00" level=info msg="Daemon has comple>
Jan 11 21:37:25 hecs-398409 dockerd[51116]: time="2024-01-11T21:37:25.331215962+08:00" level=info msg="API listen on /ru>
Jan 11 21:37:25 hecs-398409 systemd[1]: Started Docker Application Container Engine.
```

### 卸载[​](https://amprobe.amuluze.com/doc/views/docker.html#%E5%8D%B8%E8%BD%BD)

bash

```
$ sudo apt-get purge docker.io
$ sudo rm -rf /var/lib/docker
```