text: 4. Attach to the Red Hat subscription Pool: 
  
  **ansible -i <inventory_file> nodes -a 'subscription-manager attach**
  **--pool={{POOL_ID}}'**
  ... 
  Output truncated 
  ... 
  wkrnode03.domain.example.com | SUCCESS | rc=0 >> 
  Successfully attached a subscription for: Red Hat OpenShift Container Platform for 
  Power, LE Business Partner NFR, Self-Supported 
  
  5. Enable Red Hat repositories for IBM POWER9: 