step 1: 安装必要的一些系统工具

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

step 2: 安装GPG证书

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

Step 3: 写入软件源信息

sudo add-apt-repository "deb [arch=amd64] http://mirrors.aliyun.com/docker-ce/linux/ubuntu $(lsb_release -cs) stable"

Step 4: 更新并安装 Docker-CE

sudo apt-get -y update
sudo apt-get -y install docker-ce

报错：ubuntu apt-get install 时报错curl : Depends: libcurl4 (= 7.58.0-2ubuntu3.6) but 7.61.0-1ubuntu2 is to b...

ubuntu apt-get install 时报错：Depends: (=某版本)but(另一版本)is to be installed

这时候就把这个***给purge后再重新装就好了

比如:

apt-get purge libcurl4

apt-get install curl

或者:

apt-get purge vim-common

apt-get install vim

换源
cat daemon.json
{
"registry-mirrors": [
"https://kfwkfulq.mirror.aliyuncs.com",
"https://2lqq34jg.mirror.aliyuncs.com",
"https://pee6w651.mirror.aliyuncs.com",
"https://registry.docker-cn.com",
"http://hub-mirror.c.163.com"
],
"dns": ["8.8.8.8","8.8.4.4"]
}
然后重启docker

seivice docker restart