Begin deploying those containerized applications. Next we'll start and enable the docker daemon with the command: sudo systemctl enable -now dockerįinally, add your user to the docker group with the command: sudo usermod -aG docker $USERĬongratulations, you now have Docker CE running and ready to work on CentOS 8. So you will need to download it from the Git repository. To do that, issue the command: sudo systemctl disable firewalld We will not be discussing many of the new features of CentOS 8 that function with Docker, as RedHat has decided not to provide official support for Docker. By default, Docker Compose is not available in the CentOS 8 default repository. In order to force DNS resolution to work within Docker containers, the firewalld must be disabled. To install that version, issue the command: sudo dnf install docker-ce-3:18.09.1-3.el7 To find out which versions are available, issue the command: dnf list docker-ce -showduplicates | sort -rįrom that list, we can see version docker-ce-3:18.09.1-3.el7 is available for installation Instead, you must install a specific version of Docker. To do this, open a terminal window and issue the command: sudo dnf config-manager -add-repo= How to locate an installable version of Docker CEĪs of now, Red Hat has blocked the installation of docker-ce, so if you attempt to run the command sudo dnf install docker-ce, it will fail. ![]() We're going to be using the dnf config-manager utility to add the Docker repository. ![]() How to add the necessary Docker repository ![]() A working instance of CentOS 8, you can order one real quick here.
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