AI 生成的摘要
在Ubuntu上安裝Docker的步驟如下:
1. **移除舊版本**:使用指令移除舊的Docker版本,並手動檢查是否完全刪除。
```bash
sudo apt-get remove docker docker-engine docker.io containerd runc
sudo rm -rf /var/lib/docker
sudo rm -rf /var/lib/containerd
```
2. **使用apt-get安裝**:
- 設定repository,添加Docker的官方GPG金鑰。
```bash
sudo apt-get update
sudo apt-get install ca-certificates curl gnupg
sudo install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
sudo chmod a+r /etc/apt/keyrings/docker.gpg
```
- 將repository添加到Apt來源。
```bash
echo "deb [arch="$(dpkg --print-architecture)" signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu "$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
```
3. **安裝Docker Engine**:
- 更新apt-get並安裝Docker。
```bash
sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
```
4. **確認安裝成功**:運行測試命令。
```bash
sudo docker run hello-world
```