docker install
docker install install docker on Debian/Ubuntu link Uninstall old versions $ sudo apt-get remove docker docker-engine docker.io containerd runc Set up the repository $ sudo apt-get update $ sudo apt-get install \ apt-transport-https \ ca-certificates \ curl \ gnupg-agent \ software-properties-common $ curl -fsSL https://download.docker.com/linux/debian/gpg | sudo apt-key add - or $ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add - curl -fsSL https://mirrors.ustc.edu.cn/docker-ce/linux/ubuntu/gpg | sudo apt-key add - $ sudo apt-key fingerprint 0EBFCD88 $ sudo add-apt-repository \ "deb [arch=amd64] https://download.docker.com/linux/debian \ $(lsb_release -cs) \ stable" or sudo add-apt-repository \ "deb [arch=amd64] https://download.docker.com/linux/ubuntu \ focal \ stable" or $ sudo add-apt-repository \ "deb [arch=amd64] https://mirrors.ustc.edu.cn/docker-ce/linux/ubuntu/ \ $(lsb_release -cs) \ stable" Install Docker Engine $ sudo apt-get update $ sudo apt-get install docker-ce docker-ce-cli containerd.io $ sudo docker run --rm hello-world $ sudo apt install docker-compose -y Without sudo to use docker $ sudo usermod -aG docker $USER $ sudo systemctl restart docker $ sudo systemctl enable docker Speed up https://YOURS.mirror.aliyuncs.com ...