修改apt源
# sudo vim /etc/apt/sources.listdeb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse# sudo apt-get update# sudo apt-get upgrade安装依赖库
# sudo apt-get install -y apt-transport-https ca-certificates curl software-properties-common添加Docker官方GPG key
# curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -设置Docker稳定版仓库
# sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"更新apt源索引
# sudo apt-get update安装最新版Docker CE（社区版）
# sudo apt-get install -y docker-ce检查Docker CE是否安装正确，出现 Hello from Docker! ，则表示安装成功
# sudo docker run hello-worldUnable to find image 'hello-world:latest' locallylatest: Pulling from library/hello-world1b930d010525: Pull complete Digest: sha256:4df8ca8a7e309c256d60d7971ea14c27672fc0d10c5f303856d7bc48f8cc17ffStatus: Downloaded newer image for hello-world:latestHello from Docker!This message shows that your installation appears to be working correctly.To generate this message, Docker took the following steps: 1. The Docker client contacted the Docker daemon. 2. The Docker daemon pulled the "hello-world" image from the Docker Hub. (amd64) 3. The Docker daemon created a new container from that image which runs the executable that produces the output you are currently reading. 4. The Docker daemon streamed that output to the Docker client, which sent it to your terminal.To try something more ambitious, you can run an Ubuntu container with: $ docker run -it ubuntu bashShare images, automate workflows, and more with a free Docker ID: https://hub.docker.com/For more examples and ideas, visit: https://docs.docker.com/get-started/安装docker-compose
$ sudo curl -L https://github.com/docker/compose/releases/download/1.25.0-rc4/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose$ sudo chmod +x /usr/local/bin/docker-compose$ docker-compose version设置权限，不用每次都输入sudo
$ sudo usermod -a -G docker dockerdocker常用命令
# # 启动docker# sudo service docker start# # 停止docker# sudo service docker stop# # 重启docker# sudo service docker restart
