Describe the issue: cephadm-ansible is new tool introduced in rhcs 5.x and users upgraded from 4.x needs to be told about the same and provided steps to install cephadm-ansible and configure the same. Document URL: Upgrade section of 4.x to 5.x, installation guide Chapter/Section Number and Title: 4. Upgrading a Red Hat Ceph Storage cluster from RHCS 4 to RHCS 5 Product Version: RHCS 5.0