To install Docker CE, you need a maintained version of CentOS 7. Archived versions aren’t supported or tested.
The centos-extras repository must be enabled.
SET UP THE REPOSITORY
Install required packages. yum-utils provides the yum-config-manager utility, and device-mapper-persistent-data and lvm2 are required by the devicemapper storage driver.
Use the following command to set up the stable repository.
The overlay2 storage driver is recommended
$ sudo yum-config-manager –add-repo https://download.docker.com/linux/centos/docker-ce.repo
INSTALL DOCKER CE
Install the latest version of Docker CE and containerd, or go to the next step to install a specific version:
If prompted to accept the GPG key, verify that the fingerprint matches 060A 61C5 1B55 8A7F 742B 77AA C52F EB6B 621E 9F35, and if so, accept it.