For our test environment setup, we will use VirtualBox. So, we will run both the cloud controller and compute node in virtual machines. For a proper and stable setup, it might be necessary to go through a few system requirements first.
Since we are using VirtualBox, the physical host must have access to the Internet.
Note
Since CentOS/RHEL 6, a predictable network device naming rule has been introduced for network interfaces. It is adopted by default on CentOS/RHEL 7. For the sake of simplicity, it would be more practical to control the naming conventions of network interfaces by assigning simple and easy names. In order to rename an interface on CentOS/RHEL 7, disable the predictable naming rule by editing the /etc/default/grub file and passing the net.ifnames=0 kernel parameter to the GRUB_CMDLINE_LINUX variable when the system boots. Regenerate the GRUB configuration with the updated kernel parameters using the grub2-mkconfig command-line tool. Add...