Univention provides UCS as Docker images at Docker Hub. The description of the Docker images explains how they can be configured.
You can update the image content with the regular UCS software update mechanisms. The images may receive updates on the minor version basis.
In a standard installation, the Docker images are used in a network that can’t be reached directly from outside the server. If multiple Docker images are used and run on different Docker servers, a Software Defined Network or a VPN solution is recommended.
For more information about the installation of UCS, see the section Installation in the UCS manual.