Installation
Method 1 - Convenience Script
$ curl -fsSL https://get.docker.com -o get-docker.sh
$ sudo sh get-docker.sh
<...>
If you would like to use Docker as a non-root user,
Approach 1
$ sudo sh -eux <<EOF
# Install newuidmap & newgidmap binaries
apt-get install -y uidmap
EOF
$ dockerd-rootless-setuptool.sh install
# To run docker.service on system startup, run:
$ sudo loginctl enable-linger sw
# Make sure the following environment variables are set (or add them to ~/.bashrc):
export PATH=/usr/bin:$PATH
export DOCKER_HOST=unix:///run/user/1000/docker.sock
# Verify that you can run docker commands without sudo.
$ docker run hello-world
Approach 2
you should now consider adding your user to the “docker” group with something like:
$ sudo usermod -aG docker ${USER}
# 将当前用户切换到docker组中，且立即生效
$ newgrp docker
# Verify that you can run docker commands without sudo.
$ docker run hello-world
Method 2 - Using Repository
Uninstall Docker Engine
-
Uninstall the Docker Engine, CLI, and Containerd packages:
$ sudo apt-get purge docker-ce docker-ce-cli containerd.io -
Images, containers, volumes, or customized configuration files on your host are not automatically removed. To delete all images, containers, and volumes:
$ sudo rm -rf /var/lib/docker $ sudo rm -rf /var/lib/containerd
You must delete any edited configuration files manually.
Reference
- https://docs.docker.com/engine/install/ubuntu/#install-using-the-repository
- https://docs.docker.com/engine/install/linux-postinstall/
- https://www.digitalocean.com/community/questions/how-to-fix-docker-got-permission-denied-while-trying-to-connect-to-the-docker-daemon-socket