How to uninstall Docker Rootless mode ?

[thinh105]

I'm new for the town, so I'm sorry to ask something stupid,

I cannot uninstall Docker Rootless mode,

I try sudo apt-get remove docker docker-engine docker.io containerd runc but it not working,

I don't know how to do because it's still new and there is not so much document or article about that,

Thanks

[thaJeztah]

Rootless install doesn't use the apt packages (as those can only be installed globally, and as such require root / sudo to install). Instead, it uses static binaries, and installs them inside your home directory (in $HOME/bin/).

We should probably add some documentation about uninstalling those (/cc @AkihiroSuda)

[AkihiroSuda]

Probably we should add uninstaller to moby/moby#40707

[AkihiroSuda]

The current uninstall steps:

$ rootlesskit rm -rf ~/.local/share/docker
$ cd ~/bin
$ rm -f *docker* *containerd* *runc* *rootlesskit* *vpnkit*

[thinh105]

@thaJeztah @AkihiroSuda thank you guys for the quick replys, I will try to find out

The current uninstall steps:

$ rootlesskit rm -rf ~/.local/share/docker
$ cd ~/bin
$ rm -f *docker* *containerd* *runc* *rootlesskit* *vpnkit*

Actually, after doing that, it stills stay strong 💃

Do I need to restart my machine or something, thanks

Update:

Look like I have to run this command to stop it:

systemctl --user stop docker

after that, it seems clean,

[thinh105]

Now I got the bigger problem, I cannot install a normal docker,

it keeps saying that : "ERROR: Cannot connect to the Docker daemon at unix:///run/user/1000/docker.sock. Is the docker daemon running?"

maybe after removing Docker Rootless mode, it still not come back to normal?

sudo setfacl -m user:bastian:rw /var/run/docker.sock
 docker ps                                           
Cannot connect to the Docker daemon at unix:///run/user/1000/docker.sock. Is the docker daemon running?
 sudo gpasswd -a $USER docker                        
Adding user bastian to group docker
 sudo setfacl -m user:bastian:rw /var/run/docker.sock
 docker ps
Cannot connect to the Docker daemon at unix:///run/user/1000/docker.sock. Is the docker daemon running?
 sudo setfacl -m user:bastian:rw /var/run/user/1000/docker.sock
setfacl: /var/run/user/1000/docker.sock: No such file or directory
 ✘  ~ 
 sudo setfacl -m user:bastian:rw /run/user/1000/docker.sock 
setfacl: /run/user/1000/docker.sock: No such file or directory
 ✘  ~ 
 systemctl start docker                                    
 ~ 
 docker ps
Cannot connect to the Docker daemon at unix:///run/user/1000/docker.sock. Is the docker daemon running?
 docker ps
Cannot connect to the Docker daemon at unix:///run/user/1000/docker.sock. Is the docker daemon running?
 docker info                                   
Client:
 Debug Mode: false

Server:
ERROR: Cannot connect to the Docker daemon at unix:///run/user/1000/docker.sock. Is the docker daemon running?
errors pretty printing info

@AkihiroSuda lookalike I need some another remove command to use normal docker again ?

[AkihiroSuda]

Probably you have added DOCKER_HOST in your .bashrc

[thinh105]

finally, I just found out on rootless docs: https://docs.docker.com/engine/security/rootless/

# Make sure the following environment variables are set (or add them to ~/.bashrc):
export DOCKER_HOST=unix:///run/user/1001/docker.sock

So I went to my file (~/.zshrc ) to remove that line, and after logout/login, my docker has finally work, thank god

[shubhamrajvanshi]

Documenting for Ubuntu 20.04.2 LTS users
I had to run below steps
rootlesskit rm -rf ~/.local/share/docker
systemctl --user stop docker

remove export DOCKER_HOST=unix:///run/user/1001/docker.sock from from .bashrc and logout and login

[davidkhala]

I believe this will be more appropriate

dockerd-rootless-setuptool.sh uninstall

[rdolezel]

Linux newbie here. Hard way to find rootless docker does not support macvlan (or I am not able to get it working).

My uninstall procedure:
sudo nano /etc/sysctl.conf # remove added line
nano ~/.bashrc # remove added lines
sudo loginctl disable-linger $(whoami)
systemctl --user stop docker.service
sudo rm /var/run/docker.sock # no idea why it was here but it was blocking the next command
/usr/bin/dockerd-rootless-setuptool.sh uninstall
/usr/bin/rootlesskit rm -rf /home/radek/.local/share/docker
exit # log out & log in
sudo apt remove uidmap docker-ce-rootless-extras