install docker

#https://docs.docker.com/engine/install/ubuntu/
sudo apt-get update
sudo apt-get install -y \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg-agent \
    software-properties-common
    
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
# verify  fingerprint
# sudo apt-key fingerprint 0EBFCD88

sudo apt-get update && sudo apt-get install -y docker-ce docker-ce-cli containerd.io

#verify installed correctly
sudo docker run hello-world

# add user to group
sudo usermod -aG docker $USER