Følg veileding for Install using the apt repository
Link her: https://docs.docker.com/engine/install/ubuntu/



Hvis man ikke klarer å installere en container.
F.eks:  sudo docker run hello-world 
Prøv løsningen nedenfor


This should be the version difference between some default network settings in the Ubuntu OS and Docker.
 
REFERENCE: LINK
 
Please try:
$ sudo update-alternatives --set iptables /usr/sbin/iptables-legacy
$ sudo systemctl restart docker
 
Another way you can try is:
Disable the iptables in Docker's Daemon by editing the daemon config file:
$ sudo nano /etc/docker/daemon.json
To be:
{
  "iptables": false
}
$ sudo systemctl restart docker
Manage Ubuntu's iptables rules and the NAT port forwarding for the Docker containers by yourself.