Introduction
In opposite to Centos 7, the next version does not have the container.io package in main repositories, which is required to have the Docker.
To install Docker on Centos 8, we have to first add Docker repository to our system.
Adding GitLab repository
Fortunatelly, Docker provides third party repository with all required packages. To add the repository, execute the following:
sudo dnf config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo. Now dnf should be able to install docker-ce package.
Installing Docker
Finally we can install docker package.
sudo dnf install docker-ce
[taciaka@leszy yum.repos.d]$ sudo dnf install docker-ce
Last metadata expiration check: 0:00:29 ago on Wed 09 Dec 2020 11:54:23 PM CET.
Package docker-ce-3:19.03.14-3.el8.x86_64 is already installed.
Dependencies resolved.
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Package Architecture Version Repository Size
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Upgrading:
containerd.io x86_64 1.4.3-3.1.el8 docker-ce-stable 33 M
docker-ce x86_64 3:20.10.0-3.el8 docker-ce-stable 27 M
Installing dependencies:
docker-ce-rootless-extras x86_64 20.10.0-3.el8 docker-ce-stable 9.1 M
fuse-overlayfs x86_64 1.1.2-3.module_el8.3.0+507+aa0970ae AppStream 67 k
fuse3-libs x86_64 3.2.1-12.el8 BaseOS 94 k
libslirp x86_64 4.3.1-1.module_el8.3.0+475+c50ce30b AppStream 69 k
slirp4netns x86_64 1.1.4-2.module_el8.3.0+475+c50ce30b AppStream 50 k
Transaction Summary
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Install 5 Packages
Upgrade 2 Packages
Total download size: 69 M
Is this ok [y/N]:
As you can notice, some packages come from new, docker-ce repository.