“permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get "http://.../containers/json": dial unix /var/run/docker.sock: connect: permission denied”

js@js-ms:/$ docker ps
permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get "http://%2Fvar%2Frun%2Fdocker.sock/v1.49/containers/json": dial unix /var/run/docker.sock: connect: permission denied

解决方法：

js@js-ms:/$ sudo groupadd docker
groupadd: group 'docker' already exists
js@js-ms:/$ sudo gpasswd -a $USER docker
Adding user js to group docker
js@js-ms:/$ newgrp docker
js@js-ms:/$ docker images
REPOSITORY                        TAG       IMAGE ID       CREATED        SIZE
hello-world                       latest    74cc54e27dc4   3 months ago   10.1kB

 博客原文：https://feihu.otmiao.com/articles/13.html