ubuntu18.04 升級docker版本到19.03

# 關閉docker
sudo systemctl stop docker
# 卸載舊版本:
sudo apt-get purge docker-ce
# 安裝新版本
sudo apt update
sudo apt-get -y install apt-transport-https ca-certificates curl software-properties-common
curl -fsSL http://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository "deb [arch=amd64] http://mirrors.aliyun.com/docker-ce/linux/ubuntu $(lsb_release -cs) stable"
sudo apt-cache madison docker-ce

#//根據終端顯示的版本選擇一個
sudo apt install docker-ce=5:19.03.1~3-0~ubuntu-bionic
systemctl start docker
sudo systemctl start docker
sudo systemctl enable docker
sudo docker info
# 安裝nvidia-docker 看業務
sudo apt update 
sudo apt install nvidia-docker2