Prepare the Red Hat Enterprise Linux host

Containerized Ansible Automation Platform runs the component services as Podman based containers on top of a Red Hat Enterprise Linux host. Prepare the Red Hat Enterprise Linux host to ensure a successful installation.

Procedure

  1. Log in to the Red Hat Enterprise Linux host as your non-root user.
  2. Ensure that the hostname of your host uses a fully qualified domain name (FQDN).
    1. To check the hostname of your host, run the following command: 
      hostname -f

      Example output:

      aap.example.org
    2. If the hostname is not a FQDN, you can set it with the following command: 
      $ sudo hostnamectl set-hostname <your_hostname>
  3. Register your Red Hat Enterprise Linux host with subscription-manager: 
    $ sudo subscription-manager register
  4. Verify that only the BaseOS and AppStream repositories are enabled on the host: 
    $ sudo dnf repolist

    Example output for RHEL 9:

    Updating Subscription Management repositories.
repo id                                                    repo name
rhel-9-for-x86_64-appstream-rpms                           Red Hat Enterprise Linux 9 for x86_64 - AppStream (RPMs)
rhel-9-for-x86_64-baseos-rpms                              Red Hat Enterprise Linux 9 for x86_64 - BaseOS (RPMs)

    Example output for RHEL 10:

    Updating Subscription Management repositories.
repo id                                                    repo name
rhel-10-for-x86_64-appstream-rpms                          Red Hat Enterprise Linux 10 for x86_64 - AppStream (RPMs)
rhel-10-for-x86_64-baseos-rpms                             Red Hat Enterprise Linux 10 for x86_64 - BaseOS (RPMs)
  5. Ensure the host can resolve host names and IP addresses using DNS. This is essential to ensure services can talk to one another.
  6. Install ansible-core: 
    $ sudo dnf install -y ansible-core
  7. Optional: Install additional utilities that are useful for troubleshooting purposes, for example wget, git-core, rsync, and vim: 
    $ sudo dnf install -y wget git-core rsync vim
  8. Optional: To have the installation program automatically pick up and apply your Ansible Automation Platform subscription manifest license, follow the steps in Obtain a manifest file.