[FEA] Update Docker image to resolve permission issue

[gigony]

Is your feature request related to a problem? Please describe.
Follow up change/comments for:

• Build package with local UID/GID and fast-retrieve app/package information #168
• Build package with local UID/GID and fast-retrieve app/package information #168 (comment)
• Build package with local UID/GID and fast-retrieve app/package information #168 (comment)
• Build package with local UID/GID and fast-retrieve app/package information #168 (review)

Need to figure out the general solution.

Describe the solution you'd like

The general solution could be involved in using a tool like gosu (https://github.com/tianon/gosu) and changing folder permission at launch time.

May can refer to Jupyter notebook docker’s solution (https://github.com/jupyter/docker-stacks).

---

This is how Jupyter notebook docker workaround the user/permission issue.

• https://jupyter-docker-stacks.readthedocs.io/en/latest/
• https://github.com/jupyter/docker-stacks/blob/master/base-notebook/Dockerfile

It calls this script to fix permission settings:

• https://github.com/jupyter/docker-stacks/blob/master/base-notebook/start.sh#L67

Another info: Kubeflow serving Jupyterlab

• https://www.kubeflow.org/docs/components/notebooks/container-images/

[slbryson]

Team,
I will recreate the steps shown in the workaround for this issue, but this is something that has been tracked for a few months now. Ultimately, most of our customers that interact directly with building a MAP and specifically that need to deploy the application will want a solution that doesn't require installing additional tools or prevents deployment from succeeding due to permissions. In other cases, the devs may not have full control of the machine to be able to apply the workarounds and in production environments it will be even less likely that specific users will exist or be created (e.g. Monai_user or 1001).

[gigony]

@KavinKrishnan Please help with this issue.
I wonder to what extent does the following PR solves the issue here?

• Remove MONAI user ownership on MAP folders #199