snap install or restart docker

$ sudo snap install docker
2021-05-08T20:10:58-07:00 INFO Waiting for automatic snapd restart...
docker 19.03.13 from Canonical✓ installed

 

$ sudo snap restart docker
Restarted.

 

 

 

https://blog.csdn.net/guanxs/article/details/107932612

 

 https://segmentfault.com/q/1010000005040763

 

https://stackoverflow.com/questions/44678725/cannot-connect-to-the-docker-daemon-at-unix-var-run-docker-sock-is-the-docker

systemctl start docker
systemctl enable docker
systemctl restart docker

$ sudo service --status-all 
$ sudo service docker start
$ sudo service docker start

sudo /etc/init.d/docker start