Ubuntu 18.04安装Docker

1. 安装Docker

1. sudo apt-get update

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

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

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

5. sudo add-apt-repository "deb [arch=amd64] http://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic stable"
   bionic为ubuntu18.04的版本号，可用lsb_release -a查看ubuntu其他版本并自行替换

6. apt-cache madison docker-ce

7. sudo apt-get update

8. sudo apt-get -y install docker-ce

2. 安装docker-compose

参考
参考2

1. sudo curl -L "https://github.com/docker/compose/releases/download/1.26.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
   1.26.0为安装版本，最新版本版本号前加上v，例如v2.2.2，其他版本自行替换。如果下载速度很慢，可下载到电脑，再传到服务器上

2. sudo chmod +x /usr/local/bin/docker-compose

3. sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose

4. docker-compose --version