国内安装 Docker

1. 卸载旧版本

sudo apt-get remove docker \
               docker-engine \
               docker.io

2. 添加使用 HTTPS 传输的软件包以及 CA 证书

sudo apt-get update

sudo apt-get install -y \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

添加软件源的 GPG 密钥

curl -fsSL https://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

添加 Docker 软件源

echo \
  "deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://mirrors.aliyun.com/docker-ce/linux/ubuntu \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

3. 安装 Docker

sudo apt-get update
sudo apt-get install -y docker-ce docker-ce-cli containerd.io

4. 镜像加速器

vim /etc/docker/daemon.json

# cat /etc/docker/daemon.json
{
  "registry-mirrors": [
    "https://hub-mirror.c.163.com",
    "https://mirror.baidubce.com"
  ]
}

重新启动

systemctl daemon-reload
systemctl restart docker

5. 阿里云 镜像加速器地址

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

docker run --rm hello-world

参考

1. Install Docker Engine on Ubuntu
2. Docker — 从入门到实践
3. 阿里云 获取镜像加速器地址