内容基于docker官方文档。
ubuntu安装docker官方文档
$ sudo apt-get remove docker docker-engine docker.io containerd runc $ sudo apt-get update $ sudo apt-get install \ ca-certificates \ curl \ gnupg \ lsb-release $ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg $ echo \ "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \ $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null $ sudo apt-get update $ sudo apt-get install docker-ce docker-ce-cli containerd.io
$ sudo docker run hello-world $ sudo docker images REPOSITORY TAG IMAGE ID CREATED SIZE hello-world latest feb5d9fea6a5 3 months ago 13.3kB