#!/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
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