Ubuntu 22.04.4LTS 安装 Docker

更新Ubuntu:

sudo apt-get update

添加Docker库信息：

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

运行下列命令添加Docker官方GPG密钥：

sudo curl -fsSL https://mirrors.ustc.edu.cn/docker-ce/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.ascsudo chmod a+r /etc/apt/keyrings/docker.ascecho \"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://mirrors.ustc.edu.cn/docker-ce/linux/ubuntu \$(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

使用命令更新ubuntu列表：

sudo apt update

安装docker:

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

安装完成后，运行如下命令验证Docker服务是否正常运行：

sudo systemctl status docker

结果应该是这样：

设置docker服务每次重启时自启动：

sudo systemctl enable docker

查看docker版本：

sudo docker version

测试docker:

sudo docker run hello-world

出错了：

error pulling image configuration: download failed after attempts=6: dial tcp 108.160.166.42:443: connect: connection refused. See 'docker run --help'.

纠错：
试试这个：

sudo mkdir -p /etc/dockersudo tee /etc/docker/daemon.json <<-'EOF'
{"registry-mirrors": ["https://do.nark.eu.org","https://dc.j8.work","https://docker.m.daocloud.io","https://dockerproxy.com","https://docker.mirrors.ustc.edu.cn","https://docker.nju.edu.cn"]
}
EOFsudo systemctl daemon-reload
sudo systemctl restart docker

重新执行：

sudo docker run hello-world

成功：