This document discusses using Portainer for Docker container management on openSUSE Leap 15.1. It begins with introductions and background on Docker and its components like images, containers, and registries. Then it provides step-by-step instructions on downloading and activating the Portainer container, accessing the Portainer web interface, and connecting it to the local Docker environment. Finally, it notes some advantages and deficiencies of Portainer and mentions installing WordPress with Docker as an example use case.