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,, or docker-engine. If these are installed, uninstall them:
    sudo apt-get remove docker docker-engine 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 \
  • Add Docker’s official GPG key:
    sudo mkdir -p /etc/apt/keyrings
    curl -fsSL | 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] \
    $(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 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