install docker on centos
# First add repo to yum config manager
sudo yum install -y yum-utils
sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
# Use added repo to install and start docker
sudo yum install docker-ce docker-ce-cli containerd.io
sudo systemctl start docker
# Optional: Validate by run sample image
sudo docker run hello-worldinstall docker centos 7
$ sudo yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engineCopyright © 2021 Codeinu
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