ceph-ansible manages all aspects of the ceph configuration file that we will be using to update our cluster configuration. In order to achieve this, we will be updating the Ceph configuration file using the ceph_conf_overrides section of the /etc/ansible/group_vars/all.yml file and will be adding the details of all MON, OSD, and MDS nodes. Ansible supports the same sections as the Ceph configuration file: [global], [mon], [osd], [mds], [rgw], and so on.