Here’s a quick playbook to subscribe a host, or hosts to the Red Hat Network. Because I use subscription-manager commands so infrequently, I always have to look up usage in the man page first. Now I just run this playbook instead:

---
- name: Subscribe {{ ansible_hostname }} to Red Hat network 
  hosts: all
  # Requires ansible vault containing rhn username and password
  vars_files:
    vars/rhn_user.yml
  tasks:
  - name: Subscibe to RHN
    redhat_subscription:
      state: present
      username: "{{ rhn_user }}"
      password: "{{ rhn_password }}"
      auto_attach: true

Don’t forget to create an ansible vault containing rhn_user and rhn_password, and to run ansible-playbook with the –ask-vault-pass switch.