§2024-10-10

• Install Docker Engine on Debian

1. Uninstall old versions

for pkg in docker.io docker-doc docker-compose podman-docker containerd runc; do sudo apt-get remove $pkg; done

2. Install using the apt repository

Add Docker's official GPG key:

sudo apt-get update &&
sudo apt-get install ca-certificates curl &&
sudo install -m 0755 -d /etc/apt/keyrings &&
sudo curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc &&
sudo chmod a+r /etc/apt/keyrings/docker.asc

Add the repository to Apt sources:

echo
"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian
$(. /etc/os-release && echo "$VERSION_CODENAME") stable" |
sudo tee /etc/apt/sources.list.d/docker.list > /dev/null &&
sudo apt-get update

3. Install the Docker packages

sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

4. verify

$ which docker
/usr/bin/docker
alexlai@hc4Docker:~$ docker --version
Docker version 27.3.1, build ce12230

5. add alexlai to docker group

$ sudo usermod -aG docker alexlai
$ id alexlai
uid=1026(alexlai) gid=1026(alexlai) groups=1026(alexlai),24(cdrom),25(floppy),27(sudo),29(audio),30(dip),44(video),46(plugdev),100(users),106(netdev),995(docker)