Docker setup

#!/usr/bin/env bash
sudo yum update --security
curl https://download.docker.com/linux/centos/docker-ce.repo | sudo tee /etc/yum.repos.d/docker-ce.repo
sudo yum repolist
sudo -v
sudo yum install -y docker-ce docker-ce-cli containerd.io bash-completion
sudo -v
getent group docker || sudo groupadd docker
sudo usermod -aG docker $USER && id -a $USER
sudo systemctl start docker
sudo systemctl enable docker
sudo systemctl status docker
### newgrp docker && docker run hello-world