Every company, project and data center is different. Thats why you can deploy the OBS as packages, appliance images or source code to real hardware and different virtualization solutions. Everything is possible.
For VMware there is an configuration file (.vmx) and a disk image (.vmdk). You can load the configuration into VMware workstation/player.
For VirtualBox there is an disk image (.vdi).
For KVM/Qemu there is a QCow2 Image (.qcow2)
On the first boot the system adapts to the hardware and defaults to automatic IP and DNS configuration via DHCP. The OBS scans for a LVM volume group called "OBS" and will use that to set up logical volumes for the worker file systems. Additionally if this volume group contains a logical volume named "server" it will be used as the data partition for the server. Please note that all data on the harddisk you deploy the image to will get overwritten.
All appliances come pre-configured with the right set of repositories and can updated via the system tools YaST or zypper at any time. Another way is to replace the entire image. If you update the image keep in mind that you need to have have your data directory on a separate storage, otherwise it will get deleted.
If you already have a Linux server running you can use our binary packages to install OBS and follow our README to set everything up yourself. Currently we maintain packages for the openSUSE and SUSE Linux Enterprise distributions.
zypper ar -f http://download.opensuse.org/repositories/OBS:/Server:/2.8/SLE_12_SP2/OBS:Server:2.8.repo zypper in -t pattern OBS_Server
zypper ar -f http://download.opensuse.org/repositories/OBS:/Server:/2.8/openSUSE_42.1/OBS:Server:2.8.repo zypper in -t pattern OBS_Server