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Red Hat Enterprise Linux (RHEL) v9.x removes support for Docker. If you are currently using Docker to manage the containers for your Anaconda Server, you’ll need to update your server to use Podman as the container engine instead.
Although Podman will be used as the container engine, Anaconda Server requires the use of docker-compose due to incompatibilities between supported features in docker-compose files.
  1. Open a terminal and connect to your instance of Anaconda Server.
  2. Enter your installer directory (ate-installer-*).
  3. Stop all containers by running the following command: 
    sudo docker-compose down
  4. Once all containers have stopped, download the Podman packages and replace the conflicting Docker packages by running the following command: 
    sudo yum install podman podman-docker --allowerasing
    podman-docker allows you to control Podman using Docker commands.
  5. Install netavark by running the following command: 
    sudo yum install netavark
  6. Using your preferred file editor, open the usr/share/containers/containers.conf file and set the network_backend= value to "netavark".
  7. Save your work and close the file.
  8. Enable the podman.socket by running the following commands: 
    sudo systemctl enable --now podman.socket
sudo systemctl status podman.socket
  9. If necessary, navigate back to your installer directory.
  10. Load the images into Podman by running the following command: 
    podman load --input repo_images.tar
  11. Start the containers by running the following command: 
    docker-compose up -d
Log in to your Anaconda Server using your existing credentials and verify that all existing channels, mirrors, users, configurations, and such are as expected.