When you deploy an application to OpenShift, by default it will be run with an assigned user ID unique to the project the application is running in. This user ID will override whatever user ID a Docker-formatted image may declare as the user it should be run as.
Running applications under a project as a user ID different to applications running in any other project is part of the multi-layered approach to security used in OpenShift. In this post, we will delve more into the topic of user IDs, as well as what changes would need to be made to the Jupyter Notebook image being used to enable it to run as the user ID OpenShift assigns to it.
Quelle: OpenShift
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