Manual installation is too cumbersome. Make a record of an automated installation method.
Command, the mirror image of Alibaba Cloud.
curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun
Start after the installation is complete, set the boot to start
systemctl start docekr
systemctl enable docker
Note that the time in the docker may not be right after the installation is complete. Please pay attention to check the time in the docker and check that the docker can connect to the external network.
Please refer to: https://blog.csdn.net/csd_nuser/article/details/110090583
You can also replace the docker image, the download is faster, here is my Alibaba Cloud image. Just copy and execute it directly.
sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": ["https://ejrf8brk.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker