Ubuntu docker install

 

Environment

• Ubuntu 20.04

Steps

# install
$ sudo apt-get install docker.io
$ sudo systemctl enable --now docker
$ docker --version

# display all users
$ compgen -u
# display all groups
$ compgen -g
# if there has no group docker, you can add it first
$ sudo groupadd docker
# add user to docker group
$ sudo usermod -aG docker [non-root user]
# Restart or relogon to activate this setting

Reference

• Learn from

Environment

• Centos 9

Steps

$ sudo yum install -y yum-utils
$ sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

$ sudo yum install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
$ sudo systemctl start docker

# display all users
$ compgen -u
# display all groups
$ compgen -g
# if there has no group docker, you can add it first
$ sudo groupadd docker
# add user to docker group
$ sudo usermod -aG docker [non-root user]
# Restart or relogon to activate this setting

Reference

• Learn from