Installing and configuring Ceph

To deploy our first Ceph cluster, we will use the ceph-ansible tool to install and configure Ceph on all three virtual machines. The ceph-ansible tool is a part of the Ceph project, which is used for easy deployment and management of your Ceph storage cluster. In the previous section, we created three virtual machines with CentOS 7, which have connectivity with the internet over NAT, as well as private host-only networks.

We will configure these machines as Ceph storage clusters, as mentioned in the following diagram: