Install docker on Ubuntu 20.04

There is a little problem because there is no Docker repository for Focal fossa yet. Based on standard documentation, only repository modified:

https://docs.docker.com/engine/install/ubuntu/#install-using-the-repository

$ sudo apt-get update

$ sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg-agent \
    software-properties-common

$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

Point 3 from documentation where we need to add repository, just add older one:

$ sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu eoan test"

That is all, now you can install Docker:

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

And test it:

sudo docker run hello-world

Docker compose you can install without any problem using standard documentation.