You can test it with the following command: docker run hello-world Next, you will need to run an application called hello-world to ensure our installation is working as expected. You should get the following output: Client: Docker Engine - CommunityĮxperimental: false Server: Docker Engine - CommunityĪPI version: 1.39 ( minimum version 1.12) You can also verify the installed version of Docker CE using the following command: Once the installation has been completed, start the Docker CE service and enable it to start at reboot with the following command: systemctl start docker systemctl enable docker Now, install the latest version of Docker CE using the following command: dnf install docker-ce -nobest -y You should get the following list: Available Packagesĭocker-ce.x86_64 3:19.03.11-3.el7 docker-ce-stable Install Docker CEīefore installing Docker CE, run the following command to list the available version of Docker CE: dnf list docker-ce Once the repository is enabled, you can proceed to the next step. You can enable the Docker CE repository using the following command: dnf config-manager - add-repo=https: ///linux/centos/docker-ce.repo So you will need to add Docker CE official repository in your system. Add Docker CE Repositoryīy default, Docker is not officially supported on RHEL 8 / CentOS 8 as it has been replaced with Red Hat tools, buildah and podman. Save and close the file then restart your system to apply the changes. You can disable it by editing /etc/selinux/config file: nano /etc/selinux/config So you will need to disable the SELinux to allow Docker containers to work internally. A root password is setup on your server.īy default, SELinux is enabled in CentOS 8.In this tutorial, we will show you how to install Docker CE on CentOS 8. The container allows you to package up an application with libraries and other dependencies, and deploy it as one package. A container is a lightweight, standalone, executable package of software that includes everything needed to run an application. It uses OS-level virtualization to deliver software in packages called containers.
It has become most popular due to the portability to run applications anywhere irrespective of the host operating system. Docker is an open-source tool that allows you to create, test and deploy applications inside containers.
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