You can create the automation controller and automation hub instances, install Red Hat Ansible Automation Platform and configure it in one single playbook run. Just use the rhaap-install.yml playbook and it will take care of the entire provisioning process. If you stored your variables in a file called variables/main.yml and your Ansible Vault in variables/vault.yml, you can use the following command:
# if you're a Red Hat employee, log into Quay.io to be able to download the latest version of the execution environment
podman login quay.io
# run the playbook with ansible-navigator
ansible-navigator run rhaap-install.yml -e @variables/main.yml -e @variables/vault.yml
There is a default ansible-navigator.yml configuration file which will download the latest version of the Ansible SSA execution environment.
Make sure to configure the variables and environment for your provider, before running the playbook.