Are there any publicly accessible hello-world/ simple ngnix/httpd docker images in Oracle container

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I am trying to create an App using Kubernetes Dashboard Deployment method. It is prompting to enter the following:

Enter the URL of a public image on any registry, or a private image hosted on Docker Hub or Google Container Registry. 

Does anyone know about any sample container images( like a hello world or ngnix something that would display a sample Hello world page in browser) that can be pulled from any Oracle repositories?

Please suggest