Docker

Quick docker installation reference.

This is a quick reference to the docker installation steps to take, but you can always check the full installation guide on the official docker website.

Set up the repository

• Older versions of Docker were called docker, docker.io, or docker-engine. If these are installed, uninstall them:

  sudo apt-get remove docker docker-engine docker.io containerd runc

• Update the apt package index and install packages to allow apt to use a repository over HTTPS:

  sudo apt-get update
   
  sudo apt-get install \
      ca-certificates \
      curl \
      gnupg \
      lsb-release

• Add Docker’s official GPG key:

  sudo mkdir -p /etc/apt/keyrings
  curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

• Use the following command to set up the stable repository

  echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

Install Docker Engine

• Update the apt package index, and install the latest version of Docker Engine and containerd:

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

• Verify that Docker Engine is installed correctly by running the hello-world image.

  sudo service docker start
  sudo docker run hello-world

• Add User to Docker Group

  sudo usermod -aG docker $USER

  you can replace $USER with the name of the user account