In this case we will use the official Docker CE CentOS repository: this is, at the moment of writing, the only way to install Docker CE on RHEL 8 / CentOS 8.
Since Docker is not available on RHEL 8 / CentOS 8, we need to add an external repository to obtain the software. Because of this, issues exist – we discuss them below. In this tutorial we will see how to install this repository notice however, that it was originally meant for CentOS 7 (a RHEL clone), and the community version of Docker has no official support for Red Hat Enterprise Linux. While in Red Hat Enterprise Linux 7 Docker was officially supported, on the new release of this open source operating system, it has been replaced by a series of other tools developed by Red Hat itself: buildah and podman.īy the use of an external repository, however, it’s still possible to install Docker CE (Community Edition). $ – requires given linux commands to be executed as a regular non-privileged userĭocker is an open source project which allows the creation and distribution of applications inside containers, which are standardized environments that can be easily replicated, independently from the host system. # – requires given linux commands to be executed with root privileges either directly as a root user or by use of sudo command Permission to run command with root privileges. Requirements, Conventions or Software Version Used I created a folder under temp for the installation packages.Software Requirements and Conventions Used Software Requirements and Linux Command Line Conventions Category I had to download them to my local laptop, then transfer them to my Red Hat server using scp. In my case I couldn't use wget to download the packages directly to my server. Just visit the following link and download the latest version of each of the four packages: You can start here using the official Docker guide on how to install from RPM package files. However, there is just one gotcha along the way. I simply followed the official docker guide and used the package for CentOS, and it works just fine. The method below would also work if you can't directly install Docker on your Red Hat / Debian / CentOS for any reason. I couldn't simply install it using yum from Docker repo online.
My main challenge was that the server was on an internal only network in my organization with no direct access to internet.
I'm just used to docker and it works for me, besides nothing -at least at the time of writing this article- matches Docker Swarm or docker compose using Podman. I know Red Hat recommends Podman, but honestly I didn't prefer the switch. I needed to install Docker on a Red Hat server.
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