## remove old version 
apt-get remove --auto-remove 

#1、安装python3 -y

apt-get install python3
#2、安装pip3

apt-get install python3-pip -y 

# pip3 install docker-compose

# Uninstall old versions
 sudo apt-get remove docker docker-engine docker.io containerd runc
#Set up the repository
#Update the apt package index and install packages to allow apt to use a repository over HTTPS:

 sudo apt-get update -y
 sudo apt-get install \
    ca-certificates \
    curl \
    gnupg \
    lsb-release


 curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg


 echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

 sudo apt-get update -y 
 sudo apt-get install docker-ce docker-ce-cli containerd.io

service docker start
 sudo systemctl enable docker
 
sudo docker run hello-world