systems:docker_main:install_docker
Table of Contents
Systems - Docker Main - Install Docker
Install Dependencies
Install dependencies necessary to add a new HTTPS repository.
sudo apt install apt-transport-https ca-certificates curl gnupg-agent software-properties-common
Import the Docker GPG Key
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
Add the Docker apt Repository
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
Install Docker
sudo apt update sudo apt install docker-ce docker-ce-cli containerd.io
NOTE: This will install the latest version of Docker.
- The Docker service will start automatically after the install.
- To install a specific version of Docker, list available versions:
sudo apt update apt list -a docker-ce
- and install with:
sudo apt install docker-ce=<VERSION> docker-ce-cli=<VERSION> containerd.io
NOTE: Docker will be automatically updated through standard:
sudo apt update sudo apt upgrade
- To prevent the Docker package from being updated, mark it as held back:
sudo apt-mark hold docker-ce
Check the Docker Status
sudo systemctl status docker
Set Permissions
Non-Root User
sudo usermod -aG docker $USER
NOTE: By default, only root and user with sudo privileges can execute Docker commands.
- $USER is an environment variable that holds the logged in username.
- Log out and log back in so that the group membership is refreshed.
Verifying the Docker Installation
docker container run hello-world
NOTE: This should display Hello from Docker.
systems/docker_main/install_docker.txt · Last modified: 2021/07/15 11:43 by peter