install docker on centos 7

-- install docker 

yum install epel-release

yum install -y yum-utils device-mapper-persistent-data lvm2 yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo yum install docker-ce docker-ce-cli containerd.io docker version systemctl enable docker.service systemctl start docker.service

-- install docker compose

yum install -y python-pip pip install --upgrade pip yum upgrade python* pip2.7 install cryptography==2.2.2 pip install docker-compose docker-compose version