Ubuntu20 安装docker及docker-compose

一、安装docker

1.卸载docker残留

sudo apt-get remove docker docker-engine docker.io containerd runc

2.更新apt软件包索引并安装依赖

sudo apt-get update
sudo apt-get install apt-transport-https ca-certificates software-properties-common curl

3.添加 GPG 密钥

curl -fsSL https://download.docker.com/linux/ubuntu/gpg|sudo apt-key add -

4.更新软件包缓存

sudo apt-get update

5.安装Docker-ce

sudo apt-get install docker-ce

6.启动docker服务

sudo service docker start

7.测试docker运行

sudo docker run hello-world

二、安装docker-compose

1.下载最新版的docker-compose文件

sudo curl -L https://github.com/docker/compose/releases/download/1.29.0/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose

2.添加可执行权限

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

3.测试安装结果

docker-compose --version