OpenShift vs Docker?

can anyone explain the difference - may use OS for my new project with Travis…

OpenShift is an abstraction layer on top of Kubernetes (k8s) and provides a useful user interface that in all honesty, k8s lacks. As you may know, k8s is an orchestrator and requires your application packaged as an image. You can use Docker to create your image, although you are not limited and may use other vendors for this exact purpose.

The image I attached does more explaining than I could ever do on the topic of “OpenShift/Docker”. I hope this answers your question, the question itself is opaque, but I tried to answer it to the best of my ability.