ubuntu安装docker

1.更新软件包索引

sudo apt-get update

2.安装必要的软件包以允许apt通过HTTPS使用仓库

sudo apt-get install apt-transport-https ca-certificates curl software-properties-common

3.添加阿里云的Docker官方GPG密钥

curl -fsSL https://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | sudo apt-key add -

4.向sources.list添加Docker仓库

sudo add-apt-repository "deb [arch=amd64] https://mirrors.aliyun.com/docker-ce/linux/ubuntu $(lsb_release -cs) stable"

5.再次更新软件包索引

sudo apt-get update

6.安装最新版本的Docker CE

sudo apt-get install docker-ce

7.创建目录

sudo mkdir -p /etc/docker

8.配置阿里云镜像加速

sudo tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": ["https://qvm2weup.mirror.aliyuncs.com"]
}
EOF

9.重启docker

sudo systemctl daemon-reload

sudo systemctl restart docker

10.测试拉取镜像

docker pull hello-world