Learn how to install Docker in Ubuntu (64bit) with these simple steps (for other distributions or architectures, see: Install Docker Engine).

  1. Update repositories and install required packages: 
    sudo apt-get update
sudo apt-get install \
apt-transport-https \
ca-certificates \
curl \
gnupg \
lsb-release
  2. Add Docker’s official GPG key: 
    curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
  3. Add the repository: 
    echo \
  "deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
  4. Install Docker 
    sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io
  5. Add current user to “docker” group 
    sudo usermod -aG docker $USER
# or
sudo adduser $USER docker

Now you can run containers, for example:

docker run -p 8080:80 nginx

To install Docker Compose, check https://docs.docker.com/compose/install/.

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