先检查有没有旧版本!!

安装依赖

sudo apt update 
sudo apt install -y ca-certificates curl gnupg lsb-release

添加docker官方密钥

sudo mkdir -p /etc/apt/keyrings
curl -fsSL https://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

添加官方软件源（不行就换阿里的）

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

检查一下

cat /etc/apt/sources.list.d/docker.list

此时sudo apt update发现官方源加载不出来了，所以换了阿里的，参考下图

安装docker engine

sudo apt install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

check一下

docker --version

check服务状态

sudo systemctl status docker